Update Rust nightly (#52)

* Fixes the issue described in [Duplicate the rust-toolchain file so the crate can be published #51](#51).
* Fixes the bizarre linker error that prevented a proper Rust update in [Update rust-toolchain and dependencies #50](#50).
* Updates all packages to Edition 2021.
* Moves all examples to the `rrt0` repo. Since that code is not intended to be built on a build platform like Linux, macOS, or Windows.

Author: parasyte

.github/workflows/ci.yml

@@ -24,8 +24,10 @@ jobs:
           args: --all
       - name: Cargo n64 build
         run: |
-          cargo install --path cargo-n64
+          cargo install --path .
           dd if=/dev/zero of=/tmp/dummy-ipl3 bs=4032 count=1
+          git clone https://github.com/rust-console/rrt0.git /tmp/rrt0
+          cd /tmp/rrt0
           cargo n64 build --ipl3 /tmp/dummy-ipl3 -- --package hello-ipl3font
   tests:
     name: Test

Cargo.lock

@@ -1,9 +1,25 @@
-[workspace]
-members = [
-    "cargo-n64",
-    "examples/n64lib",
-    "examples/hello-ipl3font",
-]
+[package]
+name = "cargo-n64"
+version = "0.2.0"
+authors = ["Jay Oster <jay@kodewerx.org>"]
+repository = "https://github.com/rust-console/cargo-n64"
+description = "Cargo subcommand to build Nintendo 64 ROMs"
+license = "MIT"
+readme = "README.md"
+categories = ["command-line-utilities", "development-tools", "embedded"]
+keywords = ["cli", "cross", "compilation", "nintendo", "n64"]
+edition = "2021"
+
+[dependencies]
+colored = "2.0"
+crc32fast = "1.2"
+error-iter = "0.2"
+fatfs = "0.3"
+goblin = { version = "0.5", default-features = false, features = ["std", "elf32", "elf64", "endian_fd"] }
+gumdrop = "0.8"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+thiserror = "1.0"
 
 [profile.release]
 lto = "thin"

Cargo.toml

@@ -22,7 +22,7 @@ rustup run $(cat rust-toolchain) -- rustup component add rust-src
 Install `cargo-n64` from source:
 
 ```bash
-cargo install --path cargo-n64
+cargo install --path .
 ```
 
 Install `cargo-n64` from [crates.io](https://crates.io/):
@@ -38,3 +38,7 @@ Nintendo 64 ROMs are flat binaries, and each one is unique. There is no standard
 This makes it challenging to get started with N64 development, in general. You first have to build an OS from scratch, or use a library like [`libdragon`](https://github.com/DragonMinded/libdragon) or [`libn64`](https://github.com/tj90241/n64chain/tree/master/libn64). Then you need a tool (or two, or three!) to convert the object files from the compiler toolchain into a flat binary, add the header and IPL3, and finally fix the IPL3 checksum. `cargo-n64` takes the place of the latter set of tools and plugs in nicely to the Rust/cargo ecosystem.
 
 For copyright purposes, the IPL3 binary is not included in this package. Collecting a working IPL3 binary is left as an exercise for the reader. You will be required to provide the path to your IPL3 with the `--ipl3` command line argument, or extract it from an existing ROM with `--ipl3-from-rom`.
+
+## Examples
+
+The separate `rrt0` repo has some examples you can build with `cargo-n64`: https://github.com/rust-console/rrt0/tree/main/examples