diff --git a/Cargo.lock b/Cargo.lock
index d612fe6210..c147ebfbe0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,1676 +4,1690 @@
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+ "winapi 0.2.8",
+ "winapi-build",
+]
diff --git a/Cargo.toml b/Cargo.toml
index 88c2c5339d..f8c118fda6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -51,11 +51,10 @@ repository = "killercup/cargo-edit"
 
 [dependencies]
 atty = { version = "0.2.14", optional = true }
+anyhow = "1.0.28"
 cargo_metadata = "0.9.1"
 dirs = "2.0.2"
 env_proxy = "0.4.0"
-error-chain = "0.12.2"
-failure = "0.1.7"
 git2 = "0.13.0"
 hex = "0.4.2"
 regex = "1.3.5"
@@ -69,6 +68,7 @@ termcolor = "1.1.0"
 toml = "0.5.6"
 toml_edit = "0.1.5"
 url = "2.1.1"
+thiserror = "1.0.11"
 
 [dependencies.semver]
 features = ["serde"]
@@ -90,3 +90,4 @@ rm = ["cli"]
 upgrade = ["cli"]
 cli = ["atty", "structopt"]
 test-external-apis = []
+backtrace = []
diff --git a/src/bin/add/args.rs b/src/bin/add/args.rs
index c1dd407e2b..3f59265dcd 100644
--- a/src/bin/add/args.rs
+++ b/src/bin/add/args.rs
@@ -1,5 +1,6 @@
 //! Handle `cargo add` arguments
 
+use anyhow::{Context, Result};
 use cargo_edit::{find, registry_url, Dependency};
 use cargo_edit::{get_latest_dependency, CrateName};
 use semver;
@@ -142,7 +143,7 @@ pub struct Args {
 }
 
 fn parse_version_req(s: &str) -> Result<&str> {
-    semver::VersionReq::parse(s).chain_err(|| "Invalid dependency version requirement")?;
+    semver::VersionReq::parse(s).with_context(|| "Invalid dependency version requirement")?;
     Ok(s)
 }
 
@@ -175,7 +176,7 @@ impl Args {
             if let Some(ref url) = self.git {
                 let url = url.clone();
                 let version = dependency.version().unwrap().to_string();
-                return Err(ErrorKind::GitUrlWithVersion(url, version).into());
+                return Err(Error::GitUrlWithVersion(url, version).into());
             }
 
             if let Some(ref path) = self.path {
@@ -239,15 +240,15 @@ impl Args {
         if self.crates.len() > 1
             && (self.git.is_some() || self.path.is_some() || self.vers.is_some())
         {
-            return Err(ErrorKind::MultipleCratesWithGitOrPathOrVers.into());
+            return Err(Error::MultipleCratesWithGitOrPathOrVers.into());
         }
 
         if self.crates.len() > 1 && self.rename.is_some() {
-            return Err(ErrorKind::MultipleCratesWithRename.into());
+            return Err(Error::MultipleCratesWithRename.into());
         }
 
         if self.crates.len() > 1 && self.features.is_some() {
-            return Err(ErrorKind::MultipleCratesWithFeatures.into());
+            return Err(Error::MultipleCratesWithFeatures.into());
         }
 
         self.crates
diff --git a/src/bin/add/main.rs b/src/bin/add/main.rs
index 05a4d079bf..0ece125837 100644
--- a/src/bin/add/main.rs
+++ b/src/bin/add/main.rs
@@ -10,11 +10,11 @@
     unused_import_braces,
     unused_qualifications
 )]
-
-#[macro_use]
-extern crate error_chain;
+// if the user has compiled with the `backtrace` feature, enable the stdlib `backtrace` feature
+#![cfg_attr(feature = "backtrace", feature(backtrace))]
 
 use crate::args::{Args, Command};
+use anyhow::Result;
 use cargo_edit::{
     find, manifest_from_pkgid, registry_url, update_registry_index, Dependency, Manifest,
 };
@@ -28,40 +28,37 @@ use toml_edit::Item as TomlItem;
 mod args;
 
 mod errors {
-    error_chain! {
-        errors {
-            /// Specified a dependency with both a git URL and a version.
-            GitUrlWithVersion(git: String, version: String) {
-                description("Specified git URL with version")
-                display("Cannot specify a git URL (`{}`) with a version (`{}`).", git, version)
-            }
-            /// Specified multiple crates with path or git or vers
-            MultipleCratesWithGitOrPathOrVers {
-                description("Specified multiple crates with path or git or vers")
-                display("Cannot specify multiple crates with path or git or vers")
-            }
-            /// Specified multiple crates with renaming.
-            MultipleCratesWithRename {
-                description("Specified multiple crates with rename")
-                display("Cannot specify multiple crates with rename")
-            }
-            /// Specified multiple crates with features.
-            MultipleCratesWithFeatures {
-                description("Specified multiple crates with features")
-                display("Cannot specify multiple crates with features")
-            }
-        }
-        links {
-            CargoEditLib(::cargo_edit::Error, ::cargo_edit::ErrorKind);
-        }
-        foreign_links {
-            Io(::std::io::Error);
-        }
+    use thiserror::Error as ThisError;
+
+    #[derive(Debug, ThisError)]
+    pub enum Error {
+        /// Specified a dependency with both a git URL and a version.
+        #[error("Cannot specify a git URL (`{0}`) with a version (`{1}`).")]
+        GitUrlWithVersion(String, String),
+        /// Specified multiple crates with path or git or vers
+        #[error("Cannot specify multiple crates with path or git or vers")]
+        MultipleCratesWithGitOrPathOrVers,
+        /// Specified multiple crates with renaming.
+        #[error("Cannot specify multiple crates with rename")]
+        MultipleCratesWithRename,
+        /// Specified multiple crates with features.
+        #[error("Cannot specify multiple crates with features")]
+        MultipleCratesWithFeatures,
+
+        /// An error originating from the cargo-edit library
+        #[error(transparent)]
+        CargoEditLib(#[from] cargo_edit::Error),
+
+        /// An IO error
+        #[error(transparent)]
+        Io(#[from] std::io::Error),
+
+        /// An error from the semver crate
+        #[error(transparent)]
+        SemVerParse(#[from] semver::ReqParseError),
     }
 }
 
-use crate::errors::*;
-
 fn print_msg(dep: &Dependency, section: &[String], optional: bool) -> Result<()> {
     let colorchoice = if atty::is(atty::Stream::Stdout) {
         ColorChoice::Auto
@@ -154,12 +151,13 @@ fn main() {
     if let Err(err) = handle_add(&args) {
         eprintln!("Command failed due to unhandled error: {}\n", err);
 
-        for e in err.iter().skip(1) {
-            eprintln!("Caused by: {}", e);
+        for source in err.chain().skip(1) {
+            eprintln!("Caused by: {}", source);
         }
 
-        if let Some(backtrace) = err.backtrace() {
-            eprintln!("Backtrace: {:?}", backtrace);
+        #[cfg(feature = "backtrace")]
+        {
+            eprintln!("Backtrace: {:?}", err.backtrace());
         }
 
         process::exit(1);
diff --git a/src/bin/rm/main.rs b/src/bin/rm/main.rs
index a26822f15e..1fe245ac2c 100644
--- a/src/bin/rm/main.rs
+++ b/src/bin/rm/main.rs
@@ -10,10 +10,10 @@
     unused_import_braces,
     unused_qualifications
 )]
+// if the user has compiled with the `backtrace` feature, enable the stdlib `backtrace` feature
+#![cfg_attr(feature = "backtrace", feature(backtrace))]
 
-#[macro_use]
-extern crate error_chain;
-
+use anyhow::Result;
 use cargo_edit::{manifest_from_pkgid, Manifest};
 use std::borrow::Cow;
 use std::io::Write;
@@ -23,16 +23,19 @@ use structopt::StructOpt;
 use termcolor::{Color, ColorChoice, ColorSpec, StandardStream, WriteColor};
 
 mod errors {
-    error_chain! {
-        links {
-            CargoEditLib(::cargo_edit::Error, ::cargo_edit::ErrorKind);
-        }
-        foreign_links {
-            Io(::std::io::Error);
-        }
+    use thiserror::Error as ThisError;
+
+    #[derive(Debug, ThisError)]
+    pub enum Error {
+        /// An error originating from the cargo-edit library
+        #[error(transparent)]
+        CargoEditLib(#[from] cargo_edit::Error),
+
+        /// An IO error
+        #[error(transparent)]
+        Io(#[from] std::io::Error),
     }
 }
-use crate::errors::*;
 
 #[derive(Debug, StructOpt)]
 #[structopt(bin_name = "cargo")]
@@ -139,12 +142,13 @@ fn main() {
     if let Err(err) = handle_rm(&args) {
         eprintln!("Command failed due to unhandled error: {}\n", err);
 
-        for e in err.iter().skip(1) {
-            eprintln!("Caused by: {}", e);
+        for source in err.chain().skip(1) {
+            eprintln!("Caused by: {}", source);
         }
 
-        if let Some(backtrace) = err.backtrace() {
-            eprintln!("Backtrace: {:?}", backtrace);
+        #[cfg(feature = "backtrace")]
+        {
+            eprintln!("Backtrace: {:?}", err.backtrace());
         }
 
         process::exit(1);
diff --git a/src/bin/upgrade/main.rs b/src/bin/upgrade/main.rs
index dee5f56a94..a4b83aa85d 100644
--- a/src/bin/upgrade/main.rs
+++ b/src/bin/upgrade/main.rs
@@ -10,16 +10,14 @@
     unused_import_braces,
     unused_qualifications
 )]
+// if the user has compiled with the `backtrace` feature, enable the stdlib `backtrace` feature
+#![cfg_attr(feature = "backtrace", feature(backtrace))]
 
-#[macro_use]
-extern crate error_chain;
-
-use crate::errors::*;
+use anyhow::{anyhow, Context, Result};
 use cargo_edit::{
     find, get_latest_dependency, manifest_from_pkgid, registry_url, update_registry_index,
     CrateName, Dependency, LocalManifest,
 };
-use failure::Fail;
 use std::collections::{HashMap, HashSet};
 use std::io::Write;
 use std::path::{Path, PathBuf};
@@ -29,13 +27,25 @@ use termcolor::{BufferWriter, Color, ColorChoice, ColorSpec, WriteColor};
 use url::Url;
 
 mod errors {
-    error_chain! {
-        links {
-            CargoEditLib(::cargo_edit::Error, ::cargo_edit::ErrorKind);
-        }
-        foreign_links {
-            CargoMetadata(::failure::Compat<::cargo_metadata::Error>);
-        }
+    use thiserror::Error as ThisError;
+
+    #[derive(Debug, ThisError)]
+    pub enum Error {
+        /// An error originating from the cargo-edit library
+        #[error(transparent)]
+        CargoEditLib(#[from] cargo_edit::Error),
+
+        /// An error originating from the cargo-metadata library
+        #[error(transparent)]
+        CargoMetadata(#[from] cargo_metadata::Error),
+
+        /// An IO error
+        #[error(transparent)]
+        Io(#[from] std::io::Error),
+
+        /// A URL-parsing error
+        #[error(transparent)]
+        Url(#[from] url::ParseError),
     }
 }
 
@@ -137,14 +147,14 @@ fn deprecated_message(message: &str) -> Result<()> {
     let mut buffer = bufwtr.buffer();
     buffer
         .set_color(ColorSpec::new().set_fg(Some(Color::Red)).set_bold(true))
-        .chain_err(|| "Failed to set output colour")?;
-    writeln!(&mut buffer, "{}", message).chain_err(|| "Failed to write dry run message")?;
+        .with_context(|| "Failed to set output colour")?;
+    writeln!(&mut buffer, "{}", message).with_context(|| "Failed to write deprecated message")?;
     buffer
         .set_color(&ColorSpec::new())
-        .chain_err(|| "Failed to clear output colour")?;
+        .with_context(|| "Failed to clear output colour")?;
     bufwtr
         .print(&buffer)
-        .chain_err(|| "Failed to print dry run message")
+        .with_context(|| "Failed to print deprecated message")
 }
 
 fn dry_run_message() -> Result<()> {
@@ -152,16 +162,16 @@ fn dry_run_message() -> Result<()> {
     let mut buffer = bufwtr.buffer();
     buffer
         .set_color(ColorSpec::new().set_fg(Some(Color::Cyan)).set_bold(true))
-        .chain_err(|| "Failed to set output colour")?;
-    write!(&mut buffer, "Starting dry run. ").chain_err(|| "Failed to write dry run message")?;
+        .with_context(|| "Failed to set output colour")?;
+    write!(&mut buffer, "Starting dry run. ").with_context(|| "Failed to write dry run message")?;
     buffer
         .set_color(&ColorSpec::new())
-        .chain_err(|| "Failed to clear output colour")?;
+        .with_context(|| "Failed to clear output colour")?;
     writeln!(&mut buffer, "Changes will not be saved.")
-        .chain_err(|| "Failed to write dry run message")?;
-    bufwtr
+        .with_context(|| "Failed to write dry run message")?;
+    Ok(bufwtr
         .print(&buffer)
-        .chain_err(|| "Failed to print dry run message")
+        .with_context(|| "Failed to print dry run message")?)
 }
 
 impl Manifests {
@@ -172,9 +182,9 @@ impl Manifests {
         if let Some(path) = manifest_path {
             cmd.manifest_path(path);
         }
-        let result = cmd.exec().map_err(|e| {
-            Error::from(e.compat()).chain_err(|| "Failed to get workspace metadata")
-        })?;
+        let result = cmd
+            .exec()
+            .with_context(|| "Failed to get workspace metadata")?;
         result
             .packages
             .into_iter()
@@ -206,18 +216,18 @@ impl Manifests {
         if let Some(path) = manifest_path {
             cmd.manifest_path(path);
         }
-        let result = cmd
-            .exec()
-            .map_err(|e| Error::from(e.compat()).chain_err(|| "Invalid manifest"))?;
+        let result = cmd.exec().with_context(|| "Invalid manifest")?;
         let packages = result.packages;
         let package = packages
             .iter()
             .find(|p| p.manifest_path.to_string_lossy() == resolved_manifest_path)
             // If we have successfully got metadata, but our manifest path does not correspond to a
             // package, we must have been called against a virtual manifest.
-            .chain_err(|| {
-                "Found virtual manifest, but this command requires running against an \
+            .ok_or_else(|| {
+                anyhow!(
+                    "Found virtual manifest, but this command requires running against an \
                  actual package in this workspace. Try adding `--all`."
+                )
             })?;
 
         Ok(Manifests(vec![(manifest, package.to_owned())]))
@@ -315,17 +325,16 @@ impl Manifests {
         // Get locked dependencies. For workspaces with multiple Cargo.toml
         // files, there is only a single lockfile, so it suffices to get
         // metadata for any one of Cargo.toml files.
-        let (manifest, _package) =
-            self.0.iter().next().ok_or_else(|| {
-                ErrorKind::CargoEditLib(::cargo_edit::ErrorKind::InvalidCargoConfig)
-            })?;
+        let (manifest, _package) = self
+            .0
+            .iter()
+            .next()
+            .ok_or_else(|| cargo_edit::Error::Invalid("Invalid cargo config".into()))?;
         let mut cmd = cargo_metadata::MetadataCommand::new();
         cmd.manifest_path(manifest.path.clone());
         cmd.other_options(vec!["--locked".to_string()]);
 
-        let result = cmd
-            .exec()
-            .map_err(|e| Error::from(e.compat()).chain_err(|| "Invalid manifest"))?;
+        let result = cmd.exec().with_context(|| "Invalid manifest")?;
 
         let locked = result
             .packages
@@ -406,9 +415,10 @@ impl DesiredUpgrades {
                         Ok((dep, v))
                     } else {
                         let registry_url = match registry {
-                            Some(x) => Some(Url::parse(&x).map_err(|_| {
-                                ErrorKind::CargoEditLib(::cargo_edit::ErrorKind::InvalidCargoConfig)
-                            })?),
+                            Some(x) => Some(
+                                Url::parse(&x)
+                                    .with_context(|| cargo_edit::Error::Invalid("Invalid cargo config".into()))?,
+                            ),
                             None => None,
                         };
                         let allow_prerelease = allow_prerelease || is_prerelease;
@@ -427,7 +437,7 @@ impl DesiredUpgrades {
                                     .to_string(),
                             )
                         })
-                        .chain_err(|| "Failed to get new version")
+                        .with_context(|| "Failed to get new version")
                     }
                 },
             )
@@ -485,9 +495,10 @@ fn process(args: Args) -> Result<()> {
                 .filter_map(|UpgradeMetadata { registry, .. }| registry.as_ref())
                 .collect::<HashSet<_>>()
             {
-                update_registry_index(&Url::parse(registry_url).map_err(|_| {
-                    ErrorKind::CargoEditLib(::cargo_edit::ErrorKind::InvalidCargoConfig)
-                })?)?;
+                update_registry_index(
+                    &Url::parse(registry_url)
+                        .with_context(|| cargo_edit::Error::Invalid("Invalid cargo config".into()))?,
+                )?;
             }
         }
 
@@ -505,12 +516,13 @@ fn main() {
     if let Err(err) = process(args) {
         eprintln!("Command failed due to unhandled error: {}\n", err);
 
-        for e in err.iter().skip(1) {
-            eprintln!("Caused by: {}", e);
+        for source in err.chain().skip(1) {
+            eprintln!("Caused by: {}", source);
         }
 
-        if let Some(backtrace) = err.backtrace() {
-            eprintln!("Backtrace: {:?}", backtrace);
+        #[cfg(feature = "backtrace")]
+        {
+            eprintln!("Backtrace: {:?}", err.backtrace());
         }
 
         process::exit(1);
diff --git a/src/crate_name.rs b/src/crate_name.rs
index 80cbeddead..4e6a2742c5 100644
--- a/src/crate_name.rs
+++ b/src/crate_name.rs
@@ -50,7 +50,7 @@ impl<'a> CrateName<'a> {
         if self.has_version() {
             let xs: Vec<_> = self.0.splitn(2, '@').collect();
             let (name, version) = (xs[0], xs[1]);
-            semver::VersionReq::parse(version).chain_err(|| "Invalid crate version requirement")?;
+            semver::VersionReq::parse(version).map_err(|e| Error::ParseReqVersion(version.into(), name.into(), e))?;
 
             Ok(Some(Dependency::new(name).set_version(version)))
         } else {
@@ -74,6 +74,6 @@ impl<'a> CrateName<'a> {
             }
         }
 
-        bail!("Unable to obtain crate informations from `{}`.\n", self.0)
+        Err(Error::Invalid(self.0.into()))
     }
 }
diff --git a/src/errors.rs b/src/errors.rs
index 1543730722..8194302d90 100644
--- a/src/errors.rs
+++ b/src/errors.rs
@@ -1,79 +1,85 @@
-error_chain! {
-    foreign_links {
-        Io(::std::io::Error) #[doc = "An error from the std::io module"];
-        Git(::git2::Error)#[doc = "An error from the git2 crate"];
-        CargoMetadata(::failure::Compat<::cargo_metadata::Error>)#[doc = "An error from the cargo_metadata crate"];
-    }
+use thiserror::Error as ThisError;
 
-    errors {
-        /// Failed to read home directory
-        ReadHomeDirFailure {
-            description("Failed to read home directory")
-        }
-        /// Invalid JSON in registry index
-        InvalidSummaryJson {
-            description("Invalid JSON in registry index")
-        }
-        /// Given crate name is empty
-        EmptyCrateName{
-            description("Found empty crate name")
-        }
-        /// No crate by that name exists
-        NoCrate(name: String) {
-            description("The crate could not be found in registry index.")
-            display("The crate `{}` could not be found in registry index.", name)
-        }
-        /// No versions available
-        NoVersionsAvailable {
-            description("No available versions exist. Either all were yanked \
-                         or only prerelease versions exist. Trying with the \
-                         --allow-prerelease flag might solve the issue."
-            )
-        }
-        /// Unable to parse external Cargo.toml
-        ParseCargoToml {
-            description("Unable to parse external Cargo.toml")
-        }
-        /// Cargo.toml could not be found.
-        MissingManifest {
-            description("Unable to find Cargo.toml")
-        }
-        /// Cargo.toml is valid toml, but doesn't contain the expected fields
-        InvalidManifest {
-            description("Cargo.toml missing expected `package` or `project` fields")
-        }
-        /// Found a workspace manifest when expecting a normal manifest
-        UnexpectedRootManifest {
-            description("Found virtual manifest, but this command requires running against an \
-                         actual package in this workspace.")
-        }
-        /// The TOML table could not be found.
-        NonExistentTable(table: String) {
-            description("non existent table")
-            display("The table `{}` could not be found.", table)
-        }
-        /// The dependency could not be found.
-        NonExistentDependency(name: String, table: String) {
-            description("non existent dependency")
-            display("The dependency `{}` could not be found in `{}`.", name, table)
-        }
-        /// Config of cargo is invalid
-        InvalidCargoConfig {
-            description("Invalid cargo config")
-        }
-        /// Unable to find the source specified by 'replace-with'
-        NoSuchSourceFound(name: String) {
-            description("Unable to find the source specified by 'replace-with'")
-            display("The source '{}' could not be found", name)
-        }
-        /// Unable to find the specified registry
-        NoSuchRegistryFound(name: String) {
-            display("The registry '{}' could not be found", name)
-        }
-        /// Failed to parse a version for a dependency
-        ParseVersion(version: String, dep: String) {
-            description("Failed to parse a version for a dependency")
-            display("The version `{}` for the dependency `{}` couldn't be parsed", version, dep)
-        }
-    }
+/// Main error type
+#[derive(Debug, ThisError)]
+pub enum Error {
+    // foreign links
+    /// An error from the std::io module
+    #[error(transparent)]
+    Io(#[from] std::io::Error),
+    ///  An error from the git2 crate
+    #[error(transparent)]
+    Git(#[from] git2::Error),
+    /// An error from the cargo_metadata crate
+    #[error(transparent)]
+    CargoMetadata(#[from] cargo_metadata::Error),
+    /// An error from the toml_edit crate
+    #[error(transparent)]
+    TomlEditParse(#[from] toml_edit::TomlError),
+    /// A ReqParseError from the semver crate
+    #[error(transparent)]
+    SemVerParse(#[from] semver::ReqParseError),
+    /// A SemVerError from the semver crate
+    #[error(transparent)]
+    SemVer(#[from] semver::SemVerError),
+    /// An error from the reqwest crate
+    #[error(transparent)]
+    Reqwest(#[from] reqwest::Error),
+    /// An error from the serde_json crate
+    #[error(transparent)]
+    Json(#[from] serde_json::Error),
+    /// An error from converting bytes to a utf8 string
+    #[error(transparent)]
+    FromUtf8(#[from] std::string::FromUtf8Error),
+
+    /// A value was expected but we got `None` instead
+    #[error("Expected a value")]
+    ExpectedValue,
+
+    /// Given crate name is empty
+    #[error("Found empty crate name")]
+    EmptyCrateName,
+
+    /// No versions available
+    #[error("No available versions exist. Either all were yanked or only prerelease versions exist. Trying with the --allow-prerelease flag might solve the issue.")]
+    NoVersionsAvailable,
+
+    /// A resource was invalid
+    #[error("Invalid: {0}")]
+    Invalid(String),
+
+    /// Found a workspace manifest when expecting a normal manifest
+    #[error("Found virtual manifest, but this command requires running against an actual package in this workspace.")]
+    UnexpectedRootManifest,
+
+    /// Unable to find the specified resource
+    #[error("The resource `{0}` could not be found.")]
+    NotFound(String),
+
+    /// Unable to find the specified resource
+    #[error("The resource `{0}` could not be found in `{1}`.")]
+    NotFoundIn(String, String),
+
+    /// Failed to parse a version for a dependency
+    #[error("The version `{0}` for the dependency `{1}` couldn't be parsed")]
+    ParseReqVersion(String, String, #[source] semver::ReqParseError),
+
+    /// Failed to parse a version for a dependency
+    #[error("The version `{0}` for the dependency `{1}` couldn't be parsed")]
+    ParseVersion(String, String, #[source] semver::SemVerError),
+
+    /// Unable to get a crate from a git repository
+    #[error("Failed to fetch crate from git")]
+    FetchCrateFromGit(#[source] reqwest::Error),
+
+    /// Something was wrong with the git url
+    #[error("There was a problem with the git repo url '{0}'")]
+    GitUrl(String),
+
+    /// Found a virtual manifest instead of an actual manifest
+    #[error("Found virtual manifest, but this command requires running against an  actual package in this workspace. Try adding `--workspace`.")]
+    VirtualManifest,
 }
+
+/// Library-specific alias for `Result`
+pub type Result<T> = std::result::Result<T, Error>;
diff --git a/src/fetch.rs b/src/fetch.rs
index 66dbac8bb4..b3315334d5 100644
--- a/src/fetch.rs
+++ b/src/fetch.rs
@@ -53,7 +53,7 @@ pub fn get_latest_dependency(
     }
 
     if crate_name.is_empty() {
-        return Err(ErrorKind::EmptyCrateName.into());
+        return Err(Error::EmptyCrateName);
     }
 
     let registry_path = match registry {
@@ -87,7 +87,7 @@ fn read_latest_version(
         .filter(|&v| flag_allow_prerelease || version_is_stable(v))
         .filter(|&v| !v.yanked)
         .max_by_key(|&v| v.version.clone())
-        .ok_or(ErrorKind::NoVersionsAvailable)?;
+        .ok_or(Error::NoVersionsAvailable)?;
 
     let name = &latest.name;
     let version = latest.version.to_string();
@@ -152,7 +152,7 @@ fn fetch_with_cli(repo: &git2::Repository, url: &str, refspec: &str) -> Result<(
         .cwd(repo.path());
 
     let _ = cmd.capture().map_err(|e| match e {
-        subprocess::PopenError::IoError(io) => ErrorKind::Io(io),
+        subprocess::PopenError::IoError(io) => Error::Io(io),
         _ => unreachable!("expected only io error"),
     })?;
     Ok(())
@@ -282,18 +282,17 @@ fn fuzzy_query_registry_index(
             Ok(x) => x.to_object(&repo)?.peel_to_blob()?,
             Err(_) => continue,
         };
-        let content = String::from_utf8(file.content().to_vec())
-            .map_err(|_| ErrorKind::InvalidSummaryJson)?;
+        let content =
+            String::from_utf8(file.content().to_vec()).map_err(Error::from)?;
 
         return content
             .lines()
             .map(|line: &str| {
-                serde_json::from_str::<CrateVersion>(line)
-                    .map_err(|_| ErrorKind::InvalidSummaryJson.into())
+                serde_json::from_str::<CrateVersion>(line).map_err(Into::into)
             })
             .collect::<Result<Vec<CrateVersion>>>();
     }
-    Err(ErrorKind::NoCrate(crate_name).into())
+    Err(Error::NotFound(crate_name))
 }
 
 fn get_crate_name_from_repository<T>(repo: &str, matcher: &Regex, url_template: T) -> Result<String>
@@ -302,15 +301,15 @@ where
 {
     matcher
         .captures(repo)
-        .ok_or_else(|| "Unable to parse git repo URL".into())
+        .ok_or_else(|| Error::GitUrl(repo.into()))
         .and_then(|cap| match (cap.get(1), cap.get(2)) {
             (Some(user), Some(repo)) => {
                 let url = url_template(user.as_str(), repo.as_str());
                 let data: Result<Manifest> = get_cargo_toml_from_git_url(&url)
-                    .and_then(|m| m.parse().chain_err(|| ErrorKind::ParseCargoToml));
+                    .and_then(|m| m.parse().map_err(|_| Error::Invalid("Unable to parse external Cargo.toml".into())));
                 data.and_then(|ref manifest| get_name_from_manifest(manifest))
             }
-            _ => Err("Git repo url seems incomplete".into()),
+            _ => Err(Error::GitUrl(repo.into())),
         })
 }
 
@@ -359,7 +358,6 @@ pub fn get_crate_name_from_gitlab(repo: &str) -> Result<String> {
 pub fn get_crate_name_from_path(path: &str) -> Result<String> {
     let cargo_file = Path::new(path).join("Cargo.toml");
     Manifest::open(&Some(cargo_file))
-        .chain_err(|| "Unable to open local Cargo.toml")
         .and_then(|ref manifest| get_name_from_manifest(manifest))
 }
 
@@ -369,7 +367,7 @@ fn get_name_from_manifest(manifest: &Manifest) -> Result<String> {
         .as_table()
         .get("package")
         .and_then(|m| m["name"].as_str().map(std::string::ToString::to_string))
-        .ok_or_else(|| ErrorKind::ParseCargoToml.into())
+        .ok_or_else(|| Error::Invalid("Unable to parse external Cargo.toml".into()))
 }
 
 const fn get_default_timeout() -> Duration {
@@ -391,11 +389,10 @@ fn get_with_timeout(url: &str, timeout: Duration) -> reqwest::Result<reqwest::bl
 }
 
 fn get_cargo_toml_from_git_url(url: &str) -> Result<String> {
-    let mut res = get_with_timeout(url, get_default_timeout())
-        .chain_err(|| "Failed to fetch crate from git")?;
+    let mut res = get_with_timeout(url, get_default_timeout()).map_err(Error::FetchCrateFromGit)?;
     let mut body = String::new();
     res.read_to_string(&mut body)
-        .chain_err(|| "Git response not a valid `String`")?;
+        .map_err(|_| Error::Invalid("Git response not a valid `String`".into()))?;
     Ok(body)
 }
 
diff --git a/src/lib.rs b/src/lib.rs
index 8ea0864bd1..6df3ac6898 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -13,8 +13,6 @@
     unused_qualifications
 )]
 
-#[macro_use]
-extern crate error_chain;
 #[macro_use]
 extern crate serde_derive;
 
diff --git a/src/manifest.rs b/src/manifest.rs
index f19f23cccd..24cae0fac4 100644
--- a/src/manifest.rs
+++ b/src/manifest.rs
@@ -29,14 +29,13 @@ pub struct Manifest {
 pub fn find(specified: &Option<PathBuf>) -> Result<PathBuf> {
     match *specified {
         Some(ref path)
-            if fs::metadata(&path)
-                .chain_err(|| "Failed to get cargo file metadata")?
+            if fs::metadata(&path)?
                 .is_file() =>
         {
             Ok(path.to_owned())
         }
         Some(ref path) => search(path),
-        None => search(&env::current_dir().chain_err(|| "Failed to get current directory")?),
+        None => search(&env::current_dir()?),
     }
 }
 
@@ -48,7 +47,7 @@ fn search(dir: &Path) -> Result<PathBuf> {
         Ok(manifest)
     } else {
         dir.parent()
-            .ok_or_else(|| ErrorKind::MissingManifest.into())
+            .ok_or_else(|| Error::NotFound(format!("Parent directory of {} not found", dir.display())))
             .and_then(|dir| search(dir))
     }
 }
@@ -101,7 +100,7 @@ fn get_version(old_dep: &toml_edit::Item) -> Result<toml_edit::Item> {
     } else if old_dep.is_table_like() {
         let version = old_dep["version"].clone();
         if version.is_none() {
-            Err("Missing version field".into())
+            Err(Error::NotFound("Version not found".into()))
         } else {
             Ok(version)
         }
@@ -111,8 +110,8 @@ fn get_version(old_dep: &toml_edit::Item) -> Result<toml_edit::Item> {
 }
 
 fn old_version_compatible(dependency: &Dependency, old_version: &str) -> Result<bool> {
-    let old_version = VersionReq::parse(old_version).chain_err(|| {
-        ErrorKind::ParseVersion(dependency.name.to_string(), old_version.to_string())
+    let old_version = VersionReq::parse(old_version).map_err(|e| {
+        Error::ParseReqVersion(dependency.name.to_string(), old_version.to_string(), e)
     })?;
 
     let current_version = match dependency.version() {
@@ -120,9 +119,8 @@ fn old_version_compatible(dependency: &Dependency, old_version: &str) -> Result<
         None => return Ok(false),
     };
 
-    let current_version = Version::parse(&current_version).chain_err(|| {
-        ErrorKind::ParseVersion(dependency.name.to_string(), current_version.into())
-    })?;
+    let current_version = Version::parse(&current_version)
+        .map_err(|e| Error::ParseVersion(dependency.name.to_string(), current_version.into(), e))?;
 
     Ok(old_version.matches(&current_version))
 }
@@ -142,21 +140,16 @@ fn print_upgrade_if_necessary(
         let bufwtr = BufferWriter::stdout(ColorChoice::Always);
         let mut buffer = bufwtr.buffer();
         buffer
-            .set_color(ColorSpec::new().set_fg(Some(Color::Green)).set_bold(true))
-            .chain_err(|| "Failed to set output colour")?;
-        write!(&mut buffer, "    Upgrading ").chain_err(|| "Failed to write upgrade message")?;
+            .set_color(ColorSpec::new().set_fg(Some(Color::Green)).set_bold(true))?;
+        write!(&mut buffer, "    Upgrading ")?;
         buffer
-            .set_color(&ColorSpec::new())
-            .chain_err(|| "Failed to clear output colour")?;
+            .set_color(&ColorSpec::new())?;
         writeln!(
             &mut buffer,
             "{} v{} -> v{}",
             crate_name, old_version, new_version,
-        )
-        .chain_err(|| "Failed to write upgrade versions")?;
-        bufwtr
-            .print(&buffer)
-            .chain_err(|| "Failed to print upgrade message")?;
+        )?;
+        bufwtr.print(&buffer)?;
     }
     Ok(())
 }
@@ -168,11 +161,10 @@ impl Manifest {
     /// found. If no path is given, the process's working directory is used as a starting point.
     pub fn find_file(path: &Option<PathBuf>) -> Result<File> {
         find(path).and_then(|path| {
-            OpenOptions::new()
+            Ok(OpenOptions::new()
                 .read(true)
                 .write(true)
-                .open(path)
-                .chain_err(|| "Failed to find Cargo.toml")
+                .open(path)?)
         })
     }
 
@@ -180,10 +172,9 @@ impl Manifest {
     pub fn open(path: &Option<PathBuf>) -> Result<Manifest> {
         let mut file = Manifest::find_file(path)?;
         let mut data = String::new();
-        file.read_to_string(&mut data)
-            .chain_err(|| "Failed to read manifest contents")?;
+        file.read_to_string(&mut data)?;
 
-        data.parse().chain_err(|| "Unable to parse Cargo.toml")
+        data.parse()
     }
 
     /// Get the specified table from the manifest.
@@ -199,7 +190,7 @@ impl Manifest {
                 if value.is_table_like() {
                     descend(value, &path[1..])
                 } else {
-                    Err(ErrorKind::NonExistentTable(segment.clone()).into())
+                    Err(Error::NotFound(segment.clone()))
                 }
             } else {
                 Ok(input)
@@ -255,9 +246,9 @@ impl Manifest {
     pub fn write_to_file(&self, file: &mut File) -> Result<()> {
         if self.data["package"].is_none() && self.data["project"].is_none() {
             if !self.data["workspace"].is_none() {
-                return Err(ErrorKind::UnexpectedRootManifest.into());
+                return Err(Error::UnexpectedRootManifest);
             } else {
-                return Err(ErrorKind::InvalidManifest.into());
+                return Err(Error::Invalid("Cargo.toml missing expected `package` or `project` fields".into()));
             }
         }
 
@@ -266,10 +257,8 @@ impl Manifest {
 
         // We need to truncate the file, otherwise the new contents
         // will be mixed up with the old ones.
-        file.set_len(new_contents_bytes.len() as u64)
-            .chain_err(|| "Failed to truncate Cargo.toml")?;
-        file.write_all(new_contents_bytes)
-            .chain_err(|| "Failed to write updated Cargo.toml")
+        file.set_len(new_contents_bytes.len() as u64)?;
+        Ok(file.write_all(new_contents_bytes)?)
     }
 
     /// Add entry to a Cargo.toml.
@@ -370,12 +359,12 @@ impl Manifest {
     /// ```
     pub fn remove_from_table(&mut self, table: &str, name: &str) -> Result<()> {
         if !self.data[table].is_table_like() {
-            return Err(ErrorKind::NonExistentTable(table.into()).into());
+            return Err(Error::NotFound(table.into()));
         } else {
             {
                 let dep = &mut self.data[table][name];
                 if dep.is_none() {
-                    return Err(ErrorKind::NonExistentDependency(name.into(), table.into()).into());
+                    return Err(Error::NotFoundIn(name.into(), table.into()));
                 }
                 // remove the dependency
                 *dep = toml_edit::Item::None;
@@ -429,8 +418,8 @@ impl str::FromStr for Manifest {
     type Err = Error;
 
     /// Read manifest data from string
-    fn from_str(input: &str) -> ::std::result::Result<Self, Self::Err> {
-        let d: toml_edit::Document = input.parse().chain_err(|| "Manifest not valid TOML")?;
+    fn from_str(input: &str) -> Result<Self> {
+        let d: toml_edit::Document = input.parse()?;
 
         Ok(Manifest { data: d })
     }
@@ -510,7 +499,6 @@ impl LocalManifest {
 
         let mut file = self.get_file()?;
         self.write_to_file(&mut file)
-            .chain_err(|| "Failed to write new manifest contents")
     }
 }
 
diff --git a/src/metadata.rs b/src/metadata.rs
index b02ee70795..1589f901a2 100644
--- a/src/metadata.rs
+++ b/src/metadata.rs
@@ -1,21 +1,15 @@
 use crate::errors::*;
 use cargo_metadata::Package;
-use failure::Fail;
 
 /// Takes a pkgid and attempts to find the path to it's `Cargo.toml`, using `cargo`'s metadata
 pub fn manifest_from_pkgid(pkgid: &str) -> Result<Package> {
     let mut cmd = cargo_metadata::MetadataCommand::new();
     cmd.no_deps();
-    let result = cmd
-        .exec()
-        .map_err(|e| Error::from(e.compat()).chain_err(|| "Invalid manifest"))?;
+    let result = cmd.exec()?;
     let packages = result.packages;
     let package = packages
         .into_iter()
-        .find(|pkg| pkg.name == pkgid)
-        .chain_err(|| {
-            "Found virtual manifest, but this command requires running against an \
-             actual package in this workspace. Try adding `--all`."
-        })?;
+        .find(|pkg| &pkg.name == pkgid)
+        .ok_or_else(|| Error::VirtualManifest)?;
     Ok(package)
 }
diff --git a/src/registry.rs b/src/registry.rs
index 75d072cc56..606225a76d 100644
--- a/src/registry.rs
+++ b/src/registry.rs
@@ -41,7 +41,7 @@ struct CargoConfig {
 fn cargo_home() -> Result<PathBuf> {
     let default_cargo_home = dirs::home_dir()
         .map(|x| x.join(".cargo"))
-        .chain_err(|| ErrorKind::ReadHomeDirFailure)?;
+        .ok_or_else(|| Error::ExpectedValue)?;
     let cargo_home = std::env::var("CARGO_HOME")
         .map(PathBuf::from)
         .unwrap_or(default_cargo_home);
@@ -55,7 +55,7 @@ pub fn registry_url(manifest_path: &Path, registry: Option<&str>) -> Result<Url>
         // TODO unit test for source replacement
         let content = std::fs::read(path)?;
         let config =
-            toml::from_slice::<CargoConfig>(&content).map_err(|_| ErrorKind::InvalidCargoConfig)?;
+            toml::from_slice::<CargoConfig>(&content).map_err(|_| Error::Invalid("Invalid cargo config".into()))?;
         for (key, value) in config.registries {
             registries.entry(key).or_insert(Source {
                 registry: value.index,
@@ -100,20 +100,20 @@ pub fn registry_url(manifest_path: &Path, registry: Option<&str>) -> Result<Url>
         }
         Some(r) => registries
             .remove(r)
-            .chain_err(|| ErrorKind::NoSuchRegistryFound(r.to_string()))?,
+            .ok_or_else(|| Error::NotFound(r.to_string()))?,
     };
 
     // search this linked list and find the tail
     while let Some(replace_with) = &source.replace_with {
         source = registries
             .remove(replace_with)
-            .chain_err(|| ErrorKind::NoSuchSourceFound(replace_with.to_string()))?;
+            .ok_or_else(|| Error::NotFound(replace_with.to_string()))?;
     }
 
     let registry_url = source
         .registry
         .and_then(|x| Url::parse(&x).ok())
-        .chain_err(|| ErrorKind::InvalidCargoConfig)?;
+        .ok_or_else(|| Error::Invalid("Invalid cargo config".into()))?;
 
     Ok(registry_url)
 }
diff --git a/tests/cargo-rm.rs b/tests/cargo-rm.rs
index 007e3a627a..4af5dae882 100644
--- a/tests/cargo-rm.rs
+++ b/tests/cargo-rm.rs
@@ -111,7 +111,7 @@ fn invalid_dependency() {
     .and()
     .stderr()
     .contains(
-        "Command failed due to unhandled error: The dependency `invalid_dependency_name` could \
+        "Command failed due to unhandled error: The resource `invalid_dependency_name` could \
          not be found in `dependencies`.",
     )
     .unwrap();
@@ -133,7 +133,7 @@ fn invalid_section() {
     .and()
     .stderr()
     .contains(
-        "Command failed due to unhandled error: The table `build-dependencies` could not be \
+        "Command failed due to unhandled error: The resource `build-dependencies` could not be \
          found.",
     )
     .unwrap();
@@ -155,7 +155,7 @@ fn invalid_dependency_in_section() {
     .and()
     .stderr()
     .contains(
-        "Command failed due to unhandled error: The dependency `semver` could not be found in \
+        "Command failed due to unhandled error: The resource `semver` could not be found in \
          `dev-dependencies`.",
     )
     .unwrap();
diff --git a/tests/cargo-upgrade.rs b/tests/cargo-upgrade.rs
index 0623d79ef6..2b5add47ec 100644
--- a/tests/cargo-upgrade.rs
+++ b/tests/cargo-upgrade.rs
@@ -421,10 +421,7 @@ fn invalid_manifest() {
     .and()
     .stderr()
     .is("\
-Command failed due to unhandled error: Unable to parse Cargo.toml
-
-Caused by: Manifest not valid TOML
-Caused by: TOML parse error at line 1, column 6
+Command failed due to unhandled error: TOML parse error at line 1, column 6
   |
 1 | This is clearly not a valid Cargo.toml.
   |      ^
@@ -498,6 +495,8 @@ For more information try --help ",
 #[test]
 #[cfg(feature = "test-external-apis")]
 fn upgrade_to_lockfile() {
+    use std::fs;
+
     let (tmpdir, manifest) = clone_out_test("tests/fixtures/upgrade/Cargo.toml.lockfile_source");
     std::fs::copy(
         std::path::Path::new("tests/fixtures/upgrade/Cargo.lock"),
diff --git a/tests/test_manifest.rs b/tests/test_manifest.rs
index cfcb784fef..9fdaeecb01 100644
--- a/tests/test_manifest.rs
+++ b/tests/test_manifest.rs
@@ -13,10 +13,7 @@ fn invalid_manifest() {
     .and()
     .stderr()
     .is(
-        r#"Command failed due to unhandled error: Unable to parse Cargo.toml
-
-Caused by: Manifest not valid TOML
-Caused by: TOML parse error at line 6, column 7
+        r#"Command failed due to unhandled error: TOML parse error at line 6, column 7
   |
 6 | key = invalid-value
   |       ^