diff --git a/.github/workflows/actionlint.yml b/.github/workflows/actionlint.yml
deleted file mode 100644
index eb466ef3..00000000
--- a/.github/workflows/actionlint.yml
+++ /dev/null
@@ -1,28 +0,0 @@
-name: actionlint
-
-on:
-  pull_request:
-    paths:
-      - ".github/workflows/*.yml"
-  push:
-    branches:
-      - main
-    paths:
-      - ".github/workflows/*.yml"
-  workflow_dispatch:
-
-permissions:
-  contents: read
-  pull-requests: write
-
-jobs:
-  action-lint:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Check workflow files
-        shell: bash
-        run: |
-          bash <(curl https://raw.githubusercontent.com/rhysd/actionlint/main/scripts/download-actionlint.bash)
-          # shellcheck disable=SC2046
-          ./actionlint -color $(find .github/workflows -name '*.yml' -type f ! -name release.yml -print)
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index efc97821..a1d06366 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -26,9 +26,22 @@ env:
 # TODO: Add -D warnings when that's clean on Windows.
 
 jobs:
+  # Check this file seems clean before launching anything else.
+  action-lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Check workflow files
+        shell: bash
+        run: |
+          bash <(curl https://raw.githubusercontent.com/rhysd/actionlint/main/scripts/download-actionlint.bash)
+          # shellcheck disable=SC2046
+          ./actionlint -color $(find .github/workflows -name '*.yml' -type f ! -name release.yml -print)
+
   # Run tests just on Ubuntu to establish that things basically work,
   # before launching mutants etc
   quick-test:
+    needs: [action-lint]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -44,6 +57,17 @@ jobs:
       - name: Test
         run: >
           cargo test --features fail/failpoints
+      # S3 integration tests can't run from CI because they need credentials, but we
+      # can at least make sure that they compile.
+      - name: cargo build --all-targets --all-features
+        run: cargo build --all-targets --all-features
+      - name: rustfmt check
+        run: cargo fmt --all -- --check
+      - name: clippy
+        run: cargo clippy --all-targets --all-features -- --deny clippy::all
+      - run: cargo check --no-default-features --all-targets
+      - name: typos
+        uses: crate-ci/typos@master
 
   tests:
     needs: [quick-test]
@@ -80,43 +104,6 @@ jobs:
           # when executing the mounting tests on Windows due to projfs.
           RUST_TEST_THREADS: 1
 
-  # Run rustfmt separately so that it does not block test results
-  rustfmt:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: stable
-          components: rustfmt
-      - uses: Swatinem/rust-cache@v2
-      - name: rustfmt check
-        run: cargo fmt --all -- --check
-
-  # S3 integration tests can't run from CI because they need credentials, but we
-  # can at least make sure that they compile.
-  build-all-features:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: stable
-      - uses: swatinem/rust-cache@v2
-      - name: cargo build
-        run: cargo build --all-targets --all-features
-
-  clippy:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: stable
-      - uses: swatinem/rust-cache@v2
-      - name: clippy
-        run: cargo clippy --all-targets --all-features -- --deny clippy::all
-
   pr-mutants:
     runs-on: ubuntu-latest
     if: github.event_name == 'pull_request'
@@ -139,7 +126,8 @@ jobs:
           tool: cargo-mutants
       - name: Mutants in diff
         run: >
-          cargo mutants --no-shuffle -vV --in-diff git.diff --in-place --
+          cargo mutants --no-shuffle -vV --in-diff git.diff --in-place
+          --no-default-features
           --features fail/failpoints
       - name: Archive mutants.out
         uses: actions/upload-artifact@v4
@@ -170,10 +158,10 @@ jobs:
       - name: Run mutant tests
         # Don't use the S3 features because they require AWS credentials for realistic
         # testing.
-        run: |
-          cargo mutants --no-shuffle -vV --in-place --baseline=skip \
-          --shard ${{ matrix.shard }}/10 \
-          -- \
+        run: >
+          cargo mutants --no-shuffle -vV --in-place --baseline=skip
+          --shard ${{ matrix.shard }}/10
+          --no-default-features
           --features fail/failpoints
       - name: Archive results
         uses: actions/upload-artifact@v4
diff --git a/.github/workflows/typos.yml b/.github/workflows/typos.yml
deleted file mode 100644
index 60f84ec7..00000000
--- a/.github/workflows/typos.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-name: Typos
-on: [pull_request]
-
-jobs:
-  run:
-    name: Spell check with Typos
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Check spelling
-        uses: crate-ci/typos@master