Prevent Windows filesystem races in bootstrap tests

2018-06-16 11:12:15 -06:00 · 2018-06-16 11:12:15 -06:00 · b436dca9e6
commit b436dca9e6
parent 18bb86e5e1
1 changed files with 3 additions and 0 deletions
--- a/src/bootstrap/test.rs
+++ b/src/bootstrap/test.rs
@ -1921,6 +1921,9 @@ impl Step for Bootstrap {
            cmd.arg("--no-fail-fast");
        }
        cmd.arg("--").args(&builder.config.cmd.test_args());
+        // rustbuild tests are racy on directory creation so just run them one at a time.
+        // Since there's not many this shouldn't be a problem.
+        cmd.arg("--test-threads=1");
        try_run(builder, &mut cmd);
    }