--- source.org/src/syscall/creds_test.go	1970-01-01 01:00:01.000000000 +0100
+++ source/src/syscall/creds_test.go	2018-02-22 10:43:47.223615358 +0000
@@ -76,8 +76,8 @@
 			if sys, ok := err.(*os.SyscallError); ok {
 				err = sys.Err
 			}
-			if err != syscall.EPERM {
-				t.Fatalf("WriteMsgUnix failed with %v, want EPERM", err)
+			if err != syscall.EPERM && err != syscall.EINVAL {
+				t.Fatalf("WriteMsgUnix failed with %v, want EPERM or EINVAL", err)
 			}
 		}