these 3 derivations will be built:
  /nix/store/pd5qbqkjdbjs3zvlr7hkp8pw02n4082m-treefmt.toml.drv
  /nix/store/51n9rj8qmwcbvwfgl3qm6sx1h01bghyq-treefmt.drv
  /nix/store/ww08igwk0yab0flgk1i6jgjyv0b9p0n8-inputDerivation-treefmt-check.drv
these 2 paths will be fetched (17.7 MiB download, 71.0 MiB unpacked):
  /nix/store/bsizww0lsgh4wafbr2xvkzkfx8zsiw54-nixfmt-rs-0.5.3
  /nix/store/qvyjj82swpjclzyld9j3fffhbjhmgyzq-python3.14-mypy-2.1.0
building '/nix/store/pd5qbqkjdbjs3zvlr7hkp8pw02n4082m-treefmt.toml.drv'
treefmt.toml> tribuchet: building on jamie
treefmt.toml> structuredAttrs is enabled
building '/nix/store/51n9rj8qmwcbvwfgl3qm6sx1h01bghyq-treefmt.drv'
treefmt> tribuchet: building on jamie
treefmt> structuredAttrs is enabled
building '/nix/store/ww08igwk0yab0flgk1i6jgjyv0b9p0n8-inputDerivation-treefmt-check.drv'
inputDerivation-treefmt-check> tribuchet: building on jamie

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