fix error text

hdhoang · hdhoang · commit 8e4072cb4b38 · 2018-05-03T08:16:34.000+07:00
diff --git a/src/doc/rustc/src/lints/listing/deny-by-default.md b/src/doc/rustc/src/lints/listing/deny-by-default.md
@@ -266,7 +266,7 @@ impl<X> Trait1<Box<X>> for A {
 This will produce:
 
 ```text
-warning: conflicting implementations of trait `Trait1<std::boxed::Box<_>>` for type `A`: (E0119)
+error: conflicting implementations of trait `Trait1<std::boxed::Box<_>>` for type `A`: (E0119)
   --> src/main.rs:13:1
    |
 9  | impl<X, T> Trait1<X> for T where T: Trait2<X> {

Original file line number	Diff line number	Diff line change
`@@ -266,7 +266,7 @@ impl<X> Trait1<Box<X>> for A {`
`266`	`266`	`This will produce:`
`267`	`267`
`268`	`268`	```text
`269`		-warning: conflicting implementations of trait `Trait1<std::boxed::Box<_>>` for type `A`: (E0119)
	`269`	+error: conflicting implementations of trait `Trait1<std::boxed::Box<_>>` for type `A`: (E0119)
`270`	`270`	`--> src/main.rs:13:1`
`271`	`271`	`\|`
`272`	`272`	`9 \| impl<X, T> Trait1<X> for T where T: Trait2<X> {`