this derivation will be built:
  /nix/store/xlrf9hwdc05pyb1k0i08qk00vqasa1jn-treefmt-check.drv
error: Cannot build '/nix/store/xlrf9hwdc05pyb1k0i08qk00vqasa1jn-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/1d19hm0p07jkhpl56lf6az0fs9258n1d-treefmt-check
       Last 22 log lines:
       > tribuchet: building on jamie
       > treefmt v2.5.0traversed 325 files
       > emitted 265 files for processing
       > formatted 265 files (1 changed) in 8.301s
       >  M README.md
       > diff --git a/README.md b/README.md
       > index 9b15ff4..54e285f 100644
       > --- a/README.md
       > +++ b/README.md
       > @@ -158,9 +158,9 @@ Each repository page shows copyable markup for an SVG build-status badge:
       >  [![nixbot](https://<nixbot-host>/badge/<token>.svg)](https://<nixbot-host>/repos/<forge>/<owner>/<repo>)
       >  ```
       >
       > -It reports the default branch unless `?branch=<name>` is added. The token
       > -is unguessable but not secret: anyone with the URL sees the build status,
       > -which lets image proxies render badges of private repositories.
       > +It reports the default branch unless `?branch=<name>` is added. The token is
       > +unguessable but not secret: anyone with the URL sees the build status, which
       > +lets image proxies render badges of private repositories.
       >
       >  ## Binary caches
       >
       For full logs, run:
         nix log /nix/store/xlrf9hwdc05pyb1k0i08qk00vqasa1jn-treefmt-check.drv