1 error[E0658]: use of unstable library feature 'unstable_test_feature'
2 --> $DIR/lint-output-format.rs:16:1
4 LL | extern crate lint_output_format; //~ ERROR use of unstable library feature
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
7 = help: add #![feature(unstable_test_feature)] to the crate attributes to enable
9 error[E0658]: use of unstable library feature 'unstable_test_feature'
10 --> $DIR/lint-output-format.rs:17:31
12 LL | use lint_output_format::{foo, bar}; //~ ERROR use of unstable library feature
15 = help: add #![feature(unstable_test_feature)] to the crate attributes to enable
17 error[E0658]: use of unstable library feature 'unstable_test_feature'
18 --> $DIR/lint-output-format.rs:21:14
20 LL | let _y = bar(); //~ ERROR use of unstable library feature
23 = help: add #![feature(unstable_test_feature)] to the crate attributes to enable
25 error: aborting due to 3 previous errors
27 For more information about this error, try `rustc --explain E0658`.