compiletest: Do not deduplicate diagnostics in UI tests

rust-lang · Jan 9, 2020 · 41318e9 · 41318e9
1 parent c404ce6
commit 41318e9
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs
@@ -1864,12 +1864,14 @@ impl<'test> TestCx<'test> {
                     rustc.args(&["--error-format", "json"]);
                 }
                 rustc.arg("-Zui-testing");
+                rustc.arg("-Zdeduplicate-diagnostics=no");
             }
             Ui => {
                 if !self.props.compile_flags.iter().any(|s| s.starts_with("--error-format")) {
                     rustc.args(&["--error-format", "json"]);
                 }
                 rustc.arg("-Zui-testing");
+                rustc.arg("-Zdeduplicate-diagnostics=no");
             }
             MirOpt => {
                 rustc.args(&[