error: you have declared `#[inline(always)]` on `test_attr_lint`. This is usually a bad idea
 --> attrs.rs:6:1
  |
6 | #[inline(always)]
  | ^^^^^^^^^^^^^^^^^
  |
  = note: `-D inline-always` implied by `-D warnings`

error: the since field must contain a semver-compliant version
  --> attrs.rs:27:14
   |
27 | #[deprecated(since = "forever")]
   |              ^^^^^^^^^^^^^^^^^
   |
   = note: `-D deprecated-semver` implied by `-D warnings`

error: the since field must contain a semver-compliant version
  --> attrs.rs:30:14
   |
30 | #[deprecated(since = "1")]
   |              ^^^^^^^^^^^
   |
   = note: `-D deprecated-semver` implied by `-D warnings`

error: aborting due to previous error(s)


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