This means the sysroot you are using was not compiled with Miri in mind. This
should never happen when you use `cargo miri` because that takes care of setting
-up the sysroot. If you are using `miri` (the Miri driver) directly, see
-[below][testing-miri] for how to set up the sysroot.
+up the sysroot. If you are using `miri` (the Miri driver) directly, see the
+[contributors' guide](CONTRIBUTING.md) for how to use `./miri` to best do that.
## Miri `-Z` flags and environment variables
passed to Miri.
The following environment variables are internal, but used to communicate between
-different Miri binaries, and as such worht documenting:
+different Miri binaries, and as such worth documenting:
* `MIRI_BE_RUSTC` when set to any value tells the Miri driver to actually not
interpret the code but compile it like rustc would. This is useful to be sure