this derivation will be built:
  /nix/store/x8skkam0xqkni4id2awi94sa66zl9z5l-treefmt-check.drv
warning: ignoring the client-specified setting 'store', because it is a restricted setting and you are not a trusted user
building '/nix/store/x8skkam0xqkni4id2awi94sa66zl9z5l-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> bld1: building x8skkam0xqkni4id2awi94sa66zl9z5l-treefmt-check.drv
treefmt-check> traversed 578 files
treefmt-check> emitted 387 files for processing
treefmt-check> formatted 387 files (0 changed) in 2.864s