these 4 derivations will be built:
  /nix/store/rimy3l70rd1v8bph85zn2sx0s7pvf7n8-mdsh.drv
  /nix/store/8hlyqckhxswjm4syf1fdgz2c5bdnr1f1-treefmt.toml.drv
  /nix/store/xvi1l8cyv2sf0jn56mkvy6vlb73ci1mj-treefmt.drv
  /nix/store/0gflzbi2s8f7hzf4vhx3r5hw1669r47j-treefmt-check.drv
this path will be fetched (1.1 MiB download, 3.4 MiB unpacked):
  /nix/store/qjva9p4dhs1ibi3yjz2br91r48xbwv3d-mdsh-0.9.2
building '/nix/store/rimy3l70rd1v8bph85zn2sx0s7pvf7n8-mdsh.drv'
mdsh> tribuchet: building on jamie
building '/nix/store/8hlyqckhxswjm4syf1fdgz2c5bdnr1f1-treefmt.toml.drv'
treefmt.toml> tribuchet: building on jamie
treefmt.toml> structuredAttrs is enabled
building '/nix/store/xvi1l8cyv2sf0jn56mkvy6vlb73ci1mj-treefmt.drv'
treefmt> tribuchet: building on jamie
treefmt> structuredAttrs is enabled
building '/nix/store/0gflzbi2s8f7hzf4vhx3r5hw1669r47j-treefmt-check.drv'
treefmt-check> tribuchet: building on jamie
treefmt-check> treefmt v2.6.0traversed 12 files
treefmt-check> emitted 8 files for processing
treefmt-check> formatted 8 files (0 changed) in 239ms

post-build step Upload coverage to codecov: ok
Skipping codecov: project=Mic92/fast-flake-update attr=checks.x86_64-linux.treefmt