these 2 derivations will be built:
  /nix/store/xqma3byfxw58lpy2y0bsch6h9fp8nx70-flake-inputs.drv
  /nix/store/qbp9k712s74pdj8r46gqbviqqis8zm1m-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy