ci: Re-enable rust for linux test.

 * Downgrade the rust toolchain for now to keep CI green.
 * Enable verbose kbuild.

Author: emilio

.github/workflows/bindgen.yml

@@ -23,7 +23,7 @@ jobs:
         with:
           # TODO: Should ideally be stable, but we use some nightly-only
           # features.
-          toolchain: nightly
+          toolchain: nightly-2025-04-01
           components: rustfmt, clippy
 
       - name: Run rustfmt
@@ -171,7 +171,7 @@ jobs:
           BINDGEN_FEATURE_RUNTIME: ${{matrix.feature_runtime}}
           BINDGEN_FEATURE_EXTRA_ASSERTS: ${{matrix.feature_extra_asserts}}
           BINDGEN_NO_DEFAULT_FEATURES: ${{matrix.no_default_features}}
-          BINDGEN_RUST_FOR_LINUX_TEST: 0
+          BINDGEN_RUST_FOR_LINUX_TEST: ${{matrix.os == 'ubuntu-latest' && matrix.llvm_version == '16.0' && matrix.feature_extra_asserts == 0 && 1 || 0}}
         run: ./ci/test.sh
 
   check-cfg:

ci/test.sh

@@ -96,7 +96,7 @@ if [ "$BINDGEN_RUST_FOR_LINUX_TEST" == "1" ]; then
   # and each update should only contain this change.
   #
   # Both commit hashes and tags are supported.
-  LINUX_VERSION=v6.13-rc1
+  LINUX_VERSION=v6.14-rc1
 
   # Download Linux at a specific commit
   mkdir -p linux
@@ -125,13 +125,13 @@ CONFIG_KUNIT=y
 CONFIG_RUST_KERNEL_DOCTESTS=y
 EOF
 
-  make -C linux LLVM=1 -j$(($(nproc) + 1)) \
+  make -C linux KBUILD_VERBOSE=1 LLVM=1 -j$(($(nproc) + 1)) \
       rustavailable \
       defconfig \
       rfl-for-bindgen-ci.config
 
   # Build Rust for Linux
-  make -C linux LLVM=1 -j$(($(nproc) + 1)) \
+  make -C linux LLVM=1 KBUILD_VERBOSE=1 -j$(($(nproc) + 1)) \
       samples/rust/rust_minimal.o \
       samples/rust/rust_print_main.o \
       drivers/net/phy/ax88796b_rust.o