[Refactor] 3: Switch legacy to coordinator

.github/workflows/build_nix.yml

@@ -11,6 +11,12 @@ on:
 
 jobs:
   nix:
+    strategy:
+      matrix:
+        flags: ["--cfg legacy_builder_refactored", ""]
+    env:
+      RUSTFLAGS: "${{ matrix.flags }}"
+      RUSTDOCFLAGS: "${{ matrix.flags }}"
     runs-on: ubuntu-latest
     timeout-minutes: 90
     steps:

.github/workflows/coverage.yml

@@ -34,9 +34,8 @@ jobs:
         run: |
           git config --global --add safe.directory "$PWD"
           nix develop .#perfShell -c \
-            cargo llvm-cov --profile=release --all-features --all-targets \
-                           --lcov --output-path lcov.info --no-cfg-coverage \
-                           -- --test-threads 2
+            cargo llvm-cov nextest -j 2 --release --all-features --all-targets \
+                           --branch --lcov --output-path lcov.info \
 
       - uses: coverallsapp/github-action@master
         with:

.github/workflows/lint.yml

@@ -14,9 +14,14 @@ concurrency:
 
 jobs:
   lint:
+    strategy:
+      matrix:
+        flags: ["--cfg legacy_builder_refactored", ""]
     runs-on: ubuntu-latest
 
     env:
+      RUSTFLAGS: "${{ matrix.flags }}"
+      RUSTDOCFLAGS: "${{ matrix.flags }}"
       RUST_LOG: info
     steps:
       - uses: actions/checkout@v4

.github/workflows/test.yml

@@ -14,9 +14,14 @@ concurrency:
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        flags: ["--cfg legacy_builder_refactored", ""]
     env:
+      RUSTFLAGS: "${{ matrix.flags }}"
+      RUSTDOCFLAGS: "${{ matrix.flags }}"
       RUST_LOG: info
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
 
@@ -42,7 +47,6 @@ jobs:
         timeout-minutes: 60
 
   test-ignored:
-    if: false
     runs-on: ubuntu-latest
     env:
       RUST_MIN_STACK: 64000000