fix: restore nightly config checks

Author: echobt

scripts/verify-nightly-config.sh

@@ -164,16 +164,16 @@ run_check() {
     fi
 
     if [ "${expect_nightly}" -eq 1 ]; then
-        if rg -F --quiet "-Z threads=0" "${log_file}"; then
-    if [ "${expect_nightly}" -eq 1 ]; then
-        if rg -F --quiet -- "-Z threads=0" "${log_file}"; then
         if rg -F --quiet -- "-Z threads=0" "${log_file}"; then
-        if rg -F --quiet -- "${fast_linker_test_flag}" "${log_file}"; then
-        if rg -F --quiet -- "${fast_linker_test_flag}" "${log_file}"; then
+            log_success "${label}: Nightly rustflags detected"
+        else
+            log_failure "${label}: Nightly rustflags missing"
+            return 1
+        fi
     fi
 
     if [ "${expect_no_nightly}" -eq 1 ]; then
-        if rg -F --quiet "-Z threads=0" "${log_file}"; then
+        if rg -F --quiet -- "-Z threads=0" "${log_file}"; then
             log_failure "${label}: Unexpected nightly rustflags detected"
             return 1
         else
@@ -182,7 +182,7 @@ run_check() {
     fi
 
     if [ "${expect_fast}" -eq 1 ]; then
-        if rg -F --quiet "${fast_linker_test_flag}" "${log_file}"; then
+        if rg -F --quiet -- "${fast_linker_test_flag}" "${log_file}"; then
             log_success "${label}: Fast linker rustflags detected"
         else
             log_failure "${label}: Fast linker rustflags missing"
@@ -191,7 +191,7 @@ run_check() {
     fi
 
     if [ "${expect_no_fast}" -eq 1 ]; then
-        if rg -F --quiet "${fast_linker_test_flag}" "${log_file}"; then
+        if rg -F --quiet -- "${fast_linker_test_flag}" "${log_file}"; then
             log_failure "${label}: Unexpected fast linker rustflags detected"
             return 1
         else