remove debug-logging default from tools profile

src/bootstrap/defaults/config.tools.toml

@@ -1,10 +1,6 @@
 # These defaults are meant for contributors to tools which build on the
 # compiler, but do not modify it directly.
 [rust]
-# This enables `RUSTC_LOG=debug`, avoiding confusing situations
-# where adding `debug!()` appears to do nothing.
-# However, it makes running the compiler slightly slower.
-debug-logging = true
 # This greatly increases the speed of rebuilds, especially when there are only minor changes. However, it makes the initial build slightly slower.
 incremental = true
 # Download rustc from CI instead of building it from source.

src/bootstrap/src/utils/change_tracker.rs

@@ -200,4 +200,9 @@ pub const CONFIG_CHANGE_HISTORY: &[ChangeInfo] = &[
         severity: ChangeSeverity::Warning,
         summary: "`llvm.lld` is enabled by default for the dist profile. If set to false, `lld` will not be included in the dist build.",
     },
+    ChangeInfo {
+        change_id: 127913,
+        severity: ChangeSeverity::Warning,
+        summary: "`debug-logging` option has been removed from the default `tools` profile.",
+    },
 ];

src/ci/docker/host-x86_64/mingw-check/Dockerfile

@@ -37,6 +37,7 @@ RUN sh /scripts/sccache.sh
 COPY host-x86_64/mingw-check/reuse-requirements.txt /tmp/
 RUN pip3 install --no-deps --no-cache-dir --require-hashes -r /tmp/reuse-requirements.txt
 
+COPY host-x86_64/mingw-check/check-default-config-profiles.sh /scripts/
 COPY host-x86_64/mingw-check/validate-toolstate.sh /scripts/
 COPY host-x86_64/mingw-check/validate-error-codes.sh /scripts/
 
@@ -46,6 +47,7 @@ ENV RUN_CHECK_WITH_PARALLEL_QUERIES 1
 # We disable optimized compiler built-ins because that requires a C toolchain for the target.
 # We also skip the x86_64-unknown-linux-gnu target as it is well-tested by other jobs.
 ENV SCRIPT python3 ../x.py check --stage 0 --set build.optimized-compiler-builtins=false core alloc std --target=aarch64-unknown-linux-gnu,i686-pc-windows-msvc,i686-unknown-linux-gnu,x86_64-apple-darwin,x86_64-pc-windows-gnu,x86_64-pc-windows-msvc && \
+           /scripts/check-default-config-profiles.sh && \
            python3 ../x.py check --target=i686-pc-windows-gnu --host=i686-pc-windows-gnu && \
            python3 ../x.py clippy bootstrap -Dwarnings && \
            python3 ../x.py clippy compiler library -Aclippy::all -Dclippy::correctness && \

src/ci/docker/host-x86_64/mingw-check/check-default-config-profiles.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+# Runs bootstrap (in dry-run mode) with each default config profile to ensure they are not broken.
+
+set -euo pipefail
+
+config_dir="../src/bootstrap/defaults"
+
+# Loop through each configuration file in the directory
+for config_file in "$config_dir"/*.toml;
+do
+    python3 ../x.py check --config $config_file --dry-run
+done