ci: gate costly checks behind basic ones (#5622)

.github/workflows/ci.yml

@@ -62,7 +62,20 @@ jobs:
     steps:
       - run: exit 0
 
+  # Basic actions that must pass before we kick off more expensive tests.
+  basics:
+    name: basic checks
+    runs-on: ubuntu-latest
+    needs:
+      - clippy
+      - fmt
+      - docs
+      - minrust
+    steps:
+      - run: exit 0
+
   test:
+    needs: basics
     name: test tokio full
     runs-on: ${{ matrix.os }}
     strategy:
@@ -119,6 +132,7 @@ jobs:
     # This relies on the potentially affected Tokio type being listed in
     # `tokio/tokio/tests/async_send_sync.rs`.
     name: compile tests with parking lot send guards
+    needs: basics
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -135,6 +149,7 @@ jobs:
 
   valgrind:
     name: valgrind
+    needs: basics
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -167,6 +182,7 @@ jobs:
 
   test-unstable:
     name: test tokio full --unstable
+    needs: basics
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
@@ -193,6 +209,7 @@ jobs:
 
   miri:
     name: miri
+    needs: basics
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -212,6 +229,7 @@ jobs:
 
   asan:
     name: asan
+    needs: basics
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -232,6 +250,7 @@ jobs:
 
   semver:
     name: semver
+    needs: basics
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -249,6 +268,7 @@ jobs:
 
   cross-check:
     name: cross-check
+    needs: basics
     runs-on: ubuntu-latest
     strategy:
       matrix:
@@ -273,6 +293,7 @@ jobs:
 
   cross-test:
     name: cross-test
+    needs: basics
     runs-on: ubuntu-latest
     strategy:
       matrix:
@@ -309,6 +330,7 @@ jobs:
   # See https://github.com/tokio-rs/tokio/issues/5187
   no-atomic-u64:
     name: Test i686-unknown-linux-gnu without AtomicU64
+    needs: basics
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -337,6 +359,7 @@ jobs:
 
   features:
     name: features
+    needs: basics
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -386,6 +409,7 @@ jobs:
 
   minimal-versions:
     name: minimal-versions
+    needs: basics
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -468,6 +492,7 @@ jobs:
 
   loom-compile:
     name: build loom tests
+    needs: basics
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -496,6 +521,7 @@ jobs:
 
   test-hyper:
     name: Test hyper
+    needs: basics
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
@@ -529,6 +555,7 @@ jobs:
 
   x86_64-fortanix-unknown-sgx:
     name: build tokio for x86_64-fortanix-unknown-sgx
+    needs: basics
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -545,6 +572,7 @@ jobs:
 
   wasm32-unknown-unknown:
     name: test tokio for wasm32-unknown-unknown
+    needs: basics
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -561,6 +589,7 @@ jobs:
 
   wasm32-wasi:
     name: wasm32-wasi
+    needs: basics
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -608,6 +637,7 @@ jobs:
 
   check-external-types:
     name: check-external-types
+    needs: basics
     runs-on: ${{ matrix.os }}
     strategy:
       matrix: