bump the minimal version of rustc to 1.32

Author: sylvestre

.appveyor.yml

@@ -26,7 +26,7 @@ environment:
 
   matrix:
   # minimum version
-  - CHANNEL: 1.31.0
+  - CHANNEL: 1.32.0
     ARCH: i686
     ABI: msvc
   # # "msvc" ABI

.github/workflows/CICD.yml

@@ -11,7 +11,7 @@ env:
   PROJECT_NAME: coreutils
   PROJECT_DESC: "Core universal (cross-platform) utilities"
   PROJECT_AUTH: "uutils"
-  RUST_MIN_SRV: "1.31.0" ## v1.31.0 == "Rust 2018" (2018-12-06)
+  RUST_MIN_SRV: "1.32.0" ## v1.32.0 - minimum version for half, tempfile, etc
   RUST_COV_SRV: "2020-04-29" ## (~v1.45.0) supported rust version for code coverage; (date required/used by 'coverage') ## !maint: refactor when code coverage support is included in the stable channel
 
 on: [push, pull_request]

.travis.yml

@@ -18,7 +18,7 @@ matrix:
     - rust: nightly
   fast_finish: true
   include:
-    - rust: 1.31.0
+    - rust: 1.32.0
       env: FEATURES=unix
     # - rust: stable
     #   os: linux

Cargo.lock

@@ -324,10 +324,8 @@ whoami   = { optional=true, version="0.0.1", package="uu_whoami", path="src/uu/w
 yes      = { optional=true, version="0.0.1", package="uu_yes", path="src/uu/yes" }
 #
 # * pinned transitive dependencies
-pin_backtrace = { version=">= 0.3.3, <= 0.3.30", package="backtrace" } ##  via 'failure'; pin to <= v0.3.30 to avoid increasing MinRustV to v1.33.0
-pin_half = { version="1.1.0, < 1.4.0", package="half" } ## half v1.4.0 has compiler errors for MinRustV v1.31.0
-pin_same-file = { version="1.0.4, < 1.0.6", package="same-file" } ## same-file v1.0.6 has compiler errors for MinRustV v1.31.0
-pin_winapi-util = { version="0.1.2, < 0.1.3", package="winapi-util" } ## winapi-util v0.1.3 has compiler errors for MinRustV v1.31.0
+pin_same-file = { version="1.0.4, < 1.0.6", package="same-file" } ## same-file v1.0.6 has compiler errors for MinRustV v1.32.0, expects 1.34
+pin_winapi-util = { version="0.1.2, < 0.1.3", package="winapi-util" } ## winapi-util v0.1.3 has compiler errors for MinRustV v1.32.0, expects 1.34
 
 [dev-dependencies]
 filetime = "0.2"

Cargo.toml

@@ -40,7 +40,7 @@ Requirements
 ### Rust Version ###
 
 uutils follows Rust's release channels and is tested against stable, beta and nightly.
-The current oldest supported version of the Rust compiler is `1.31.0`.
+The current oldest supported version of the Rust compiler is `1.32.0`.
 
 On both Windows and Redox, only the nightly version is tested currently.
 

README.md

@@ -17,7 +17,7 @@ path = "src/mktemp.rs"
 [dependencies]
 getopts = "0.2.18"
 rand = "0.5"
-tempfile = "2.1.5"
+tempfile = "3.0"
 uucore = { version="0.0.4", package="uucore", git="https://github.com/uutils/uucore.git", branch="canary" }
 uucore_procs = { version="0.0.4", package="uucore_procs", git="https://github.com/uutils/uucore.git", branch="canary" }
 

src/uu/mktemp/Cargo.toml

@@ -21,7 +21,7 @@ use std::mem::forget;
 use std::path::{is_separator, PathBuf};
 
 use rand::Rng;
-use tempfile::NamedTempFileOptions;
+use tempfile::Builder;
 
 mod tempdir;
 
@@ -213,11 +213,10 @@ fn exec(
         }
     }
 
-    let tmpfile = NamedTempFileOptions::new()
-        .prefix(prefix)
+    let tmpfile = Builder::new()
         .rand_bytes(rand)
         .suffix(suffix)
-        .create_in(tmpdir);
+        .tempfile_in(tmpdir);
 
     let tmpfile = match tmpfile {
         Ok(f) => f,

src/uu/mktemp/src/mktemp.rs

@@ -17,7 +17,7 @@ path = "src/od.rs"
 [dependencies]
 byteorder = "1.3.2"
 getopts = "0.2.18"
-half = { version="1.1.0, < 1.4.0", package="half" } ## half v1.4.0 has compiler errors for MinRustV v1.31.0
+half = "1.6"
 libc = "0.2.42"
 uucore = { version="0.0.4", package="uucore", git="https://github.com/uutils/uucore.git", branch="canary" }
 uucore_procs = { version="0.0.4", package="uucore_procs", git="https://github.com/uutils/uucore.git", branch="canary" }