error[E0658]: the `#[coverage]` attribute is an experimental feature
  --> $DIR/bad-attr-ice.rs:11:1
   |
LL | #[coverage]
   | ^^^^^^^^^^^
   |
   = note: see issue #84605 <https://github.com/rust-lang/rust/issues/84605> for more information
   = help: add `#![feature(coverage_attribute)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0539]: malformed `coverage` attribute input
  --> $DIR/bad-attr-ice.rs:11:1
   |
LL | #[coverage]
   | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument
   |
help: try changing it to one of the following valid forms of the attribute
   |
LL | #[coverage(off)]
   |           +++++
LL | #[coverage(on)]
   |           ++++

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0539, E0658.
For more information about an error, try `rustc --explain E0539`.