difftest: use nextest to properly filter tests, adjust ci

Author: Firestar99

.cargo/config.toml

@@ -2,7 +2,7 @@
 xtask = "run --package xtask --"
 build-test-shader = "xtask test-build"
 compiletest = "run --release -p compiletests --"
-difftest = "run --release -p difftests --"
+difftest = "nextest run --release -P difftests -p difftests"
 run-wasm = ["run", "--release", "-p", "run-wasm", "--"]
 
 [target.'cfg(target_arch = "wasm32")']

.config/nextest.toml

@@ -0,0 +1,9 @@
+[profile.default]
+default-filter = '!package(difftest*) & !package(compiletest*) & !package(example-runner-*)'
+fail-fast = false
+
+[profile.difftests]
+default-filter = 'package(difftests)'
+
+[profile.difftest-runner]
+default-filter = 'package(difftest-runner) | package(difftest)'

.github/workflows/ci.yaml

@@ -41,6 +41,8 @@ jobs:
       # figure out native target triple while we're at it
       - name: install rust-toolchain
         run: echo "TARGET=$(rustc --print host-tuple)" >> "$GITHUB_ENV"
+      - name: install nextest
+        uses: taiki-e/install-action@nextest
       # Fetch dependencies in a separate step to clearly show how long each part
       # of the testing takes
       - name: cargo fetch --locked
@@ -49,13 +51,13 @@ jobs:
       # Core crates
       # Compiled in --release because cargo compiletest would otherwise compile in release again.
       - name: rustc_codegen_spirv build
-        run: cargo test -p rustc_codegen_spirv --release --no-default-features --features "use-installed-tools" --no-run
+        run: cargo nextest run -p rustc_codegen_spirv --release --no-default-features --features "use-installed-tools" --no-run
 
       - name: rustc_codegen_spirv test
-        run: cargo test -p rustc_codegen_spirv --release --no-default-features --features "use-installed-tools"
+        run: cargo nextest run -p rustc_codegen_spirv --release --no-default-features --features "use-installed-tools"
 
       - name: workspace test (excluding examples)
-        run: cargo test --release --workspace --exclude "example-runner-*"  --exclude "cargo-gpu*" --no-default-features --features "use-installed-tools,clap"
+        run: cargo nextest run --release --workspace --exclude "example-runner-*" --exclude "cargo-gpu*" --no-default-features --features "use-installed-tools,clap"
 
       # Examples
       - name: cargo check examples
@@ -173,12 +175,14 @@ jobs:
           sudo apt install -y xvfb libgl1-mesa-dri libxcb-xfixes0-dev mesa-vulkan-drivers
       - name: install rust-toolchain
         run: echo "TARGET=$(rustc --print host-tuple)" >> "$GITHUB_ENV"
+      - name: install nextest
+        uses: taiki-e/install-action@nextest
       - name: cargo fetch --locked
         run: cargo fetch --locked --target $TARGET
       - name: cargo fetch --locked difftests
         run: cargo fetch --locked --manifest-path=tests/difftests/tests/Cargo.toml --target $TARGET
       - name: difftests
-        run: cargo run -p difftests --release --no-default-features --features "use-installed-tools"
+        run: cargo nextest run -P difftests -p difftests --release --no-default-features --features "use-installed-tools"
 
   cargo-gpu-os:
     strategy: