diff options
| -rw-r--r-- | src/bootstrap/src/core/build_steps/synthetic_targets.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/bootstrap/src/core/build_steps/synthetic_targets.rs b/src/bootstrap/src/core/build_steps/synthetic_targets.rs index d2c65b740da..9acdcaeb517 100644 --- a/src/bootstrap/src/core/build_steps/synthetic_targets.rs +++ b/src/bootstrap/src/core/build_steps/synthetic_targets.rs @@ -59,6 +59,11 @@ fn create_synthetic_target( let mut cmd = Command::new(builder.rustc(compiler)); cmd.arg("--target").arg(base.rustc_target_arg()); cmd.args(["-Zunstable-options", "--print", "target-spec-json"]); + + // If `rust.channel` is set to either beta or stable, rustc will complain that + // we cannot use nightly features. So `RUSTC_BOOTSTRAP` is needed here. + cmd.env("RUSTC_BOOTSTRAP", "1"); + cmd.stdout(Stdio::piped()); let output = cmd.spawn().unwrap().wait_with_output().unwrap(); |