Auto merge of #44825 - dtolnay:cratelint, r=aturon

Allow unused extern crate again This is a partial revert of #42588. There is a usability concern reported in #44294 that was not considered in the discussion of the PR, so I would like to back this out of 1.21. As is, I think users would have a worse and more confusing experience with this lint enabled by default. We can re-enabled once there are better diagnostics or the case in #44294 does not trigger the lint.
2017-09-27 08:20:11 +00:00 · 2017-09-27 08:20:11 +00:00 · 412ac93dce
commit 412ac93dce
parent e53ab9104a 247b58b4f4
1 changed files with 1 additions and 1 deletions
--- a/src/librustc/lint/builtin.rs
+++ b/src/librustc/lint/builtin.rs
@ -30,7 +30,7 @@ declare_lint! {

 declare_lint! {
    pub UNUSED_EXTERN_CRATES,
-    Warn,
+    Allow,
    "extern crates that are never used"
 }