Emit the lint level of the unused-crate-dependencies

Also, turn off the lint when the unused dependencies json flag is specified so that cargo doesn't have to supress the lint
2020-08-10 01:57:35 +02:00
parent 13371b59ee
commit 3a62eb74db
6 changed files with 66 additions and 19 deletions
--- a/compiler/rustc_errors/src/emitter.rs
+++ b/compiler/rustc_errors/src/emitter.rs
@@ -196,7 +196,7 @@ pub trait Emitter {
    fn emit_future_breakage_report(&mut self, _diags: Vec<(FutureBreakage, Diagnostic)>) {}

    /// Emit list of unused externs
-    fn emit_unused_externs(&mut self, _unused_externs: &[&str]) {}
+    fn emit_unused_externs(&mut self, _lint_level: &str, _unused_externs: &[&str]) {}

    /// Checks if should show explanations about "rustc --explain"
    fn should_show_explain(&self) -> bool {