these 2 derivations will be built:
  /nix/store/zwvwf2m8qvar3xvb5z2na2jrjahbpqm8-nix-unit-2.35.1.drv
  /nix/store/pd6ax8zpvzysdkcmzp8gq76qlr4cqlfs-nix-unit-check.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy