This change exposes the already existing wrapper for treefmt/depotfmt
that supports running it inside a sandbox. We now reuse it inside
//tvix/crate2nix-check, where we previously duplicated the code. The
check is now stricter and will also fail on changes, so I had to set the
rust edition in the treefmt config.
Change-Id: I000e52421258979c038ba6b1f1ff2db14e391b0c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12068
Tested-by: BuildkiteCI
Autosubmit: Ilan Joselevich <personal@ilanjoselevich.com>
Reviewed-by: flokli <flokli@flokli.de>
13720d90bf