Try fixing libtest unstable options error

Mark-Simulacrum · Mark-Simulacrum · commit f037404e6bd3 · 2024-03-17T13:38:17.000-04:00
diff --git a/src/bootstrap/src/utils/render_tests.rs b/src/bootstrap/src/utils/render_tests.rs
@@ -19,6 +19,10 @@ pub(crate) fn add_flags_and_try_run_tests(builder: &Builder<'_>, cmd: &mut Comma
         cmd.arg("--");
     }
     cmd.args(["-Z", "unstable-options", "--format", "json"]);
+    // If we pass a -Z flag to the test runner, we have to also configure RUSTC_BOOTSTRAP.
+    //
+    // This may already be set but setting it again is harmless.
+    cmd.env("RUSTC_BOOTSTRAP", "1");
 
     try_run_tests(builder, cmd, false)
 }

Original file line number	Diff line number	Diff line change
`@@ -19,6 +19,10 @@ pub(crate) fn add_flags_and_try_run_tests(builder: &Builder<'_>, cmd: &mut Comma`
`19`	`19`	`cmd.arg("--");`
`20`	`20`	`}`
`21`	`21`	`cmd.args(["-Z", "unstable-options", "--format", "json"]);`
	`22`	`+ // If we pass a -Z flag to the test runner, we have to also configure RUSTC_BOOTSTRAP.`
	`23`	`+ //`
	`24`	`+ // This may already be set but setting it again is harmless.`
	`25`	`+ cmd.env("RUSTC_BOOTSTRAP", "1");`
`22`	`26`
`23`	`27`	`try_run_tests(builder, cmd, false)`
`24`	`28`	`}`