Run shell tests in a clean env

.github/workflows/cargo-audit.yml

@@ -19,4 +19,5 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions-rs/audit-check@v1
         with:
+          args: --color=always
           token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/cargo-clippy.yml

@@ -20,5 +20,5 @@ jobs:
           components: clippy
       - uses: actions-rs/clippy-check@v1
         with:
-          args: --all-targets --all-features -- -D warnings -D clippy::all
+          args: --all-targets --all-features --color=always -- -D warnings -D clippy::all
           token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/cargo-fmt.yml

@@ -18,4 +18,4 @@ jobs:
       - uses: actions-rs/cargo@v1
         with:
           command: fmt
-          args: -- --check
+          args: -- --check --color=always

.github/workflows/cargo-test.yml

@@ -14,12 +14,12 @@ jobs:
       - uses: actions/checkout@v2
       - uses: cachix/install-nix-action@v12
         with:
-          nix_path: nixpkgs=channel:nixos-unstable
+          nix_path: nixpkgs=channel:nixos-stable
       # - uses: cachix/cachix-action@v8
       #   with:
       #     name: zoxide
       #     authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
-      - run: nix-shell --run "cargo test --no-fail-fast"
+      - run: nix-shell --pure --run "cargo test --all-features --all-targets --color=always --no-fail-fast"
   test-windows:
     runs-on: windows-latest
     steps:
@@ -32,4 +32,4 @@ jobs:
       - uses: actions-rs/cargo@v1
         with:
           command: test
-          args: --all-features --no-fail-fast
+          args: --all-features --all-targets --color=always --no-fail-fast

.github/workflows/cargo-udeps.yml

@@ -22,4 +22,4 @@ jobs:
           crate: cargo-udeps
           version: latest
           use-tool-cache: true
-      - run: cargo udeps --all-features --all-targets
+      - run: cargo udeps --all-features --all-targets --color=always