these 3 derivations will be built:
  /nix/store/x4kjhw3ha0wnqpww1vpwfnfln04ixijb-treefmt.toml.drv
  /nix/store/hhsial3s3ln13qwcpjqqd26nr8sg5s6v-treefmt.drv
  /nix/store/c2mdx1fk82xhpw6axv26f6mds3lsc37n-treefmt-check.drv
building '/nix/store/x4kjhw3ha0wnqpww1vpwfnfln04ixijb-treefmt.toml.drv'
treefmt.toml> tribuchet: building on jamie
treefmt.toml> structuredAttrs is enabled
building '/nix/store/hhsial3s3ln13qwcpjqqd26nr8sg5s6v-treefmt.drv'
treefmt> tribuchet: building on jamie
building '/nix/store/c2mdx1fk82xhpw6axv26f6mds3lsc37n-treefmt-check.drv'
treefmt-check> tribuchet: building on jamie
error: Cannot build '/nix/store/c2mdx1fk82xhpw6axv26f6mds3lsc37n-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/mrqhlhdy9j3zyyjp016v2ni76bypm11c-treefmt-check
       Last 1 log lines:
       > tribuchet: building on jamie
       For full logs, run:
         nix log /nix/store/c2mdx1fk82xhpw6axv26f6mds3lsc37n-treefmt-check.drv