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Add --regress example to tutorial. #140

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Dec 8, 2021
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Add --regress example to tutorial. #140

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7 changes: 6 additions & 1 deletion TUTORIAL.md
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Expand Up @@ -89,7 +89,10 @@ cargo bisect-rustc --test-dir=foo --start=2018-05-07 --end=2018-08-04
```

By default it will run `cargo build` in the project and check whether or not
it fails. In just a few steps, we find that it stopped working on
it fails. You can also use the flag `--regress` to specify other common
regression criteria, e.g. `--regress=ice` for internal compiler errors.

In out example, in just a few steps, we can we find that it stopped working on
`nightly-2018-07-30`.

> *Note:* Consider using the `--preserve` flag to keep the downloaded
Expand Down Expand Up @@ -222,6 +225,8 @@ previous interactive session can be hands-free automated with this script:
`foo/test.sh`:
```sh
#!/bin/sh

# Fail if we no longer get a `E0642` error:
cargo check 2>&1 | grep E0642
```

Expand Down