fix: align nightly config logging

Update test scripts to reflect default nightly threads settings and fast-linker opt-out handling while preserving overrides.

Author: echobt

scripts/test-all.sh

@@ -17,17 +17,14 @@ SKIPPED=0
 
 platform_test_init
 trap platform_cleanup_run_dir EXIT
-log_info "Defaults: nightly toolchain uses parallel rustc"
 log_info "Opt-out: PLATFORM_DISABLE_NIGHTLY=1"
 log_info "Override: PLATFORM_RUST_NIGHTLY=1"
-log_info "Defaults: fast linker flags from config"
 log_info "Opt-out: PLATFORM_DISABLE_FAST_LINKER=1"
 log_info "Override: PLATFORM_FAST_LINKER_RUSTFLAGS/PLATFORM_FAST_LINKER_RUSTFLAGS_DARWIN"
 log_info "Override: PLATFORM_LINKER_RUSTFLAGS/PLATFORM_LINKER_RUSTFLAGS_DARWIN"
-
-    if [ -z "${PLATFORM_NIGHTLY_RUSTFLAGS+x}" ]; then
-        export PLATFORM_NIGHTLY_RUSTFLAGS="-Z threads=0"
-    fi
+log_info "Defaults: nightly toolchain uses -Z threads=0"
+log_info "Defaults: fast linker flags from config when set"
+if [ "${PLATFORM_DISABLE_NIGHTLY:-0}" = "1" ]; then
     export PLATFORM_NIGHTLY_RUSTFLAGS=""
     log_info "Nightly Rust disabled via opt-out"
 elif [ "${PLATFORM_RUST_NIGHTLY:-0}" = "1" ] || [ "${RUSTUP_TOOLCHAIN:-}" = "nightly" ]; then

scripts/test-comprehensive.sh

@@ -24,18 +24,16 @@ log_info "                    Platform Comprehensive Test Suite"
 log_info "============================================================================="
 log_info "Artifacts: ${PLATFORM_TEST_ARTIFACTS_DIR}"
 log_info "Run dir: ${PLATFORM_TEST_RUN_DIR}"
-log_info "Defaults: nightly toolchain uses parallel rustc"
+log_info "Defaults: nightly toolchain uses -Z threads=0"
+log_info "Defaults: fast linker flags from config when set"
 log_info "Opt-out: PLATFORM_DISABLE_NIGHTLY=1"
 log_info "Override: PLATFORM_RUST_NIGHTLY=1"
-log_info "Defaults: fast linker flags from config"
 log_info "Opt-out: PLATFORM_DISABLE_FAST_LINKER=1"
 log_info "Override: PLATFORM_FAST_LINKER_RUSTFLAGS/PLATFORM_FAST_LINKER_RUSTFLAGS_DARWIN"
 log_info "Override: PLATFORM_LINKER_RUSTFLAGS/PLATFORM_LINKER_RUSTFLAGS_DARWIN"
 log_info ""
 
-    if [ -z "${PLATFORM_NIGHTLY_RUSTFLAGS+x}" ]; then
-        export PLATFORM_NIGHTLY_RUSTFLAGS="-Z threads=0"
-    fi
+if [ "${PLATFORM_DISABLE_NIGHTLY:-0}" = "1" ]; then
     export PLATFORM_NIGHTLY_RUSTFLAGS=""
     log_info "Nightly Rust disabled via opt-out"
 elif [ "${PLATFORM_RUST_NIGHTLY:-0}" = "1" ] || [ "${RUSTUP_TOOLCHAIN:-}" = "nightly" ]; then

scripts/verify-nightly-config.sh

@@ -16,10 +16,10 @@ platform_test_init
 trap platform_cleanup_run_dir EXIT
 
 log_info "Nightly config verification"
-log_info "Defaults: nightly toolchain uses parallel rustc"
+log_info "Defaults: nightly toolchain uses -Z threads=0"
+log_info "Defaults: fast linker flags from config when set"
 log_info "Opt-out: PLATFORM_DISABLE_NIGHTLY=1"
 log_info "Override: PLATFORM_RUST_NIGHTLY=1"
-log_info "Defaults: fast linker flags from config"
 log_info "Opt-out: PLATFORM_DISABLE_FAST_LINKER=1"
 log_info "Override: PLATFORM_FAST_LINKER_RUSTFLAGS/PLATFORM_FAST_LINKER_RUSTFLAGS_DARWIN"
 log_info "Override: PLATFORM_LINKER_RUSTFLAGS/PLATFORM_LINKER_RUSTFLAGS_DARWIN"
@@ -37,6 +37,7 @@ run_check() {
     PLATFORM_FAST_LINKER_RUSTFLAGS_DARWIN="${PLATFORM_FAST_LINKER_RUSTFLAGS_DARWIN:-}"
     PLATFORM_LINKER_RUSTFLAGS="${PLATFORM_LINKER_RUSTFLAGS:-}"
     PLATFORM_LINKER_RUSTFLAGS_DARWIN="${PLATFORM_LINKER_RUSTFLAGS_DARWIN:-}"
+    PLATFORM_DISABLE_FAST_LINKER="${PLATFORM_DISABLE_FAST_LINKER:-0}"
 
     while [ "$#" -gt 0 ]; do
         case "$1" in
@@ -86,6 +87,7 @@ run_check() {
     export PLATFORM_FAST_LINKER_RUSTFLAGS_DARWIN
     export PLATFORM_LINKER_RUSTFLAGS
     export PLATFORM_LINKER_RUSTFLAGS_DARWIN
+    export PLATFORM_DISABLE_FAST_LINKER
 
     log_info "${label}: Running cargo check (dry-run build)"
     if cargo check --workspace 2>&1 | tee "${log_file}"; then