this derivation will be built:
  /nix/store/3bf7iarrj0fpqdl22nr3zlwnrhqh9i6h-treefmt-check.drv
building '/nix/store/3bf7iarrj0fpqdl22nr3zlwnrhqh9i6h-treefmt-check.drv' on 'ssh-ng://builder@build01.clan.lol'
building '/nix/store/3bf7iarrj0fpqdl22nr3zlwnrhqh9i6h-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 420 files
treefmt-check> emitted 105 files for processing
treefmt-check> formatted 105 files (0 changed) in 535ms

upload niks3: ok