1 error[E0658]: use of unstable library feature 'custom_test_frameworks': custom test frameworks are an unstable feature
2 --> $DIR/feature-gate-custom_test_frameworks.rs:3:3
7 = note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
8 = help: add `#![feature(custom_test_frameworks)]` to the crate attributes to enable
10 error[E0658]: custom test frameworks are an unstable feature
11 --> $DIR/feature-gate-custom_test_frameworks.rs:1:1
13 LL | #![test_runner(main)]
14 | ^^^^^^^^^^^^^^^^^^^^^
16 = note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
17 = help: add `#![feature(custom_test_frameworks)]` to the crate attributes to enable
19 error: aborting due to 2 previous errors
21 For more information about this error, try `rustc --explain E0658`.