this derivation will be built:
  /nix/store/c9wlw7nnzhy52nw7cvz901zmpbykd4gw-treefmt-check.drv
building '/nix/store/c9wlw7nnzhy52nw7cvz901zmpbykd4gw-treefmt-check.drv' on 'ssh-ng://nix@cortana'
building '/nix/store/c9wlw7nnzhy52nw7cvz901zmpbykd4gw-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 63 files
treefmt-check> emitted 53 files for processing
treefmt-check> formatted 53 files (0 changed) in 216ms
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy

upload attic: ok
✍️ Overwriting server "r2d2"