Drop Rust 1.28 and 1.30 from CI (#51)

* Drop Rust 1.28 and 1.30 from CI

* Cargo update

Author: johnthagen

.github/workflows/build.yml

@@ -7,9 +7,8 @@ jobs:
     name: Default
     strategy:
       matrix:
-        # TODO: Fix libc build issues on macos-latest, which is now macos-12.
-        platform: [ ubuntu-latest, macos-11, windows-latest ]
-        toolchain: [ stable, 1.28.0, nightly ]
+        platform: [ ubuntu-latest, macos-latest, windows-latest ]
+        toolchain: [ stable, nightly ]
     runs-on: ${{ matrix.platform }}
     steps:
       - uses: actions/checkout@v3
@@ -22,8 +21,8 @@ jobs:
     name: no_std
     strategy:
       matrix:
-        platform: [ ubuntu-latest, macos-11 ]
-        toolchain: [ stable, 1.30.0, nightly ]
+        platform: [ ubuntu-latest, macos-latest ]
+        toolchain: [ stable, nightly ]
     runs-on: ${{ matrix.platform }}
     steps:
       - uses: actions/checkout@v3

Cargo.toml

@@ -2,6 +2,7 @@
 name = "min-sized-rust"
 version = "0.1.0"
 authors = ["johnthagen <johnthagen@gmail.com>"]
+edition = "2021"
 license-file = "LICENSE.txt"
 
 [dependencies]

build_std/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "build_std"
 version = "0.1.0"
-edition = "2018"
+edition = "2021"
 license = "MIT"
 
 [dependencies]

no_main/Cargo.toml

@@ -2,7 +2,7 @@
 name = "no_main"
 version = "0.1.0"
 authors = ["johnthagen <johnthagen@gmail.com>", "Vitaly '_Vi' Shukela <vi0oss@gmail.com>"]
-edition = "2018"
+edition = "2021"
 license = "MIT"
 
 [dependencies]

no_std/Cargo.lock

@@ -2,6 +2,7 @@
 name = "min-sized-no_std"
 version = "0.1.0"
 authors = ["johnthagen <johnthagen@gmail.com>"]
+edition = "2021"
 license = "MIT"
 
 [dependencies]