Commits on May 3, 2022

1. [bootstrap] Give a better error when trying to run a path with no reg… …

   …istered step
   
   Before:
   ```
   thread 'main' panicked at 'error: no rules matched invalid', src/bootstrap/builder.rs:287:17
   note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
   ```
   
   After:
   ```
   error: no `check` rules matched 'invalid'
   help: run `x.py check --help --verbose` to show a list of available paths
   note: if you are adding a new Step to bootstrap itself, make sure you register it with `describe!`
   ```

   

   jyn514 committed May 3, 2022
   Configuration menu

   • View commit details
   • Copy full SHA for 3a800bf
   • Browse repository at this point

   Copy the full SHA

   3a800bf View commit details

   Browse the repository at this point in the history