Auto merge of #37365 - alexcrichton:fix-nightlies, r=brson

Try to fix the nightlies

Touching up a few pieces after  the fix for #37280 landed.

configure

@@ -722,12 +722,26 @@ case "$CFG_RELEASE_CHANNEL" in
     nightly )
 	msg "overriding settings for $CFG_RELEASE_CHANNEL"
 	CFG_ENABLE_LLVM_ASSERTIONS=1
+
+        # FIXME(#37364) shouldn't have to disable this on windows-gnu
+        case "$CFG_BUILD" in
+          *-pc-windows-gnu)
+            ;;
+          *)
 	    CFG_ENABLE_DEBUGINFO_LINES=1
             ;;
+        esac
+	;;
     beta | stable)
 	msg "overriding settings for $CFG_RELEASE_CHANNEL"
+        case "$CFG_BUILD" in
+          *-pc-windows-gnu)
+            ;;
+          *)
 	    CFG_ENABLE_DEBUGINFO_LINES=1
             ;;
+        esac
+	;;
     dev)
 	;;
     *)

mk/tests.mk

@@ -632,6 +632,7 @@ endif
 # is a separate choice from whether to pass `-g` when building the
 # compiler and standard library themselves.
 CTEST_RUSTC_FLAGS := $$(subst -g,,$$(CTEST_RUSTC_FLAGS))
+CTEST_RUSTC_FLAGS := $$(subst -Cdebuginfo=1,,$$(CTEST_RUSTC_FLAGS))
 ifdef CFG_ENABLE_DEBUGINFO_TESTS
 CTEST_RUSTC_FLAGS += -g
 endif