src/test/ui/lint/command-line-register-unknown-lint-tool.stderr

   1 error[E0602]: unknown lint tool: `unknown_tool`
   2    |
   3    = note: requested on the command line with `-A unknown_tool::foo`
   4
   5 error[E0602]: unknown lint tool: `unknown_tool`
   6    |
   7    = note: requested on the command line with `-A unknown_tool::foo`
   8
   9 error: aborting due to 2 previous errors
  10
  11 For more information about this error, try `rustc --explain E0602`.