these 4 derivations will be built:
  /nix/store/fm7f6wijmazqlhsqkycv83s62mpl4x9a-source.drv
  /nix/store/4zvdc3nb0l0qgi9clnh4pvr5hpih6zik-jscpd-5.1.0-vendor-staging.drv
  /nix/store/fbw02qxk06sn0j2mbvnd0gg0dzdqa7hr-jscpd-5.1.0-vendor.drv
  /nix/store/gc82f9mf26qfin458jyfwg3sc2xdqz95-jscpd-5.1.0.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy