these 2 derivations will be built:
  /nix/store/cqm5has1z3izcdkzl369wdczbwwyqfja-flake-update.json.drv
  /nix/store/3ill2364wr21r5hps5fx305xfwr20rdr-inputDerivation-flake-update.drv
building '/nix/store/cqm5has1z3izcdkzl369wdczbwwyqfja-flake-update.json.drv'...
building '/nix/store/3ill2364wr21r5hps5fx305xfwr20rdr-inputDerivation-flake-update.drv'...