Make unused-extern-crate warn-by-default

ishitatsuyuki · ishitatsuyuki · commit bc5bd51c4563 · 2017-08-27T19:02:24.000+09:00
diff --git a/src/librustc/lint/builtin.rs b/src/librustc/lint/builtin.rs
@@ -30,7 +30,7 @@ declare_lint! {
 
 declare_lint! {
     pub UNUSED_EXTERN_CRATES,
-    Allow,
+    Warn,
     "extern crates that are never used"
 }
 

Original file line number	Diff line number	Diff line change
`@@ -30,7 +30,7 @@ declare_lint! {`
`30`	`30`
`31`	`31`	`declare_lint! {`
`32`	`32`	`pub UNUSED_EXTERN_CRATES,`
`33`		`- Allow,`
	`33`	`+ Warn,`
`34`	`34`	`"extern crates that are never used"`
`35`	`35`	`}`
`36`	`36`