these 2 derivations will be built:
  /nix/store/qaahads6chnhmh4flj5ds8ysbb31vqcs-flake-inputs.drv
  /nix/store/phw5hb2m0zsdbb5lpag1xg7xqsgipnb4-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy