// multiple relocations with a same name.
		"main.defined1: relocation target main.undefined not defined": 1,
		"main.defined2: relocation target main.undefined not defined": 1,
	}
	unexpectedErrors := map[string]int{}

	for _, l := range strings.Split(string(out), "\n") {
		if strings.HasPrefix(l, "#") || l == "" {
			continue
		}
		matched := ""
		for want := range wantErrors {

					for _, err := range errs {
						sawErrors.Insert(err.Error())
					}
					expectErrs := sets.NewString(failingObject.expectErrs...)
					for _, unexpectedError := range sawErrors.Difference(expectErrs).List() {
						t.Errorf("%d: unexpected error: %s", i, unexpectedError)
					}
					for _, missingError := range expectErrs.Difference(sawErrors).List() {
						t.Errorf("%d: missing error:    %s", i, missingError)
					}
				}