|  | 
 | running 1 test | 
 | test $DIR/dead-code.rs - f (line 12) - compile ... FAILED | 
 |  | 
 | failures: | 
 |  | 
 | ---- $DIR/dead-code.rs - f (line 12) stdout ---- | 
 | error: trait `T` is never used | 
 |   --> $DIR/dead-code.rs:13:7 | 
 |    | | 
 | LL | trait T { fn f(); } | 
 |    |       ^ | 
 |    | | 
 | note: the lint level is defined here | 
 |   --> $DIR/dead-code.rs:11:9 | 
 |    | | 
 | LL | #![deny(warnings)] | 
 |    |         ^^^^^^^^ | 
 |    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]` | 
 |  | 
 | error: aborting due to 1 previous error | 
 |  | 
 | Couldn't compile the test. | 
 |  | 
 | failures: | 
 |     $DIR/dead-code.rs - f (line 12) | 
 |  | 
 | test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME | 
 |  |