these 3 derivations will be built:
  /nix/store/20gkqs6mrgj653p7wr84k007skg5bf48-iets-fuzz-diff-0.0.0.drv
  /nix/store/alqc4f0vjcxxfpypzz9r6gb6621447hi-iets-fuzzers-0.0.0.drv
  /nix/store/1mn76zqfnkg0i16zyh1vcp1navf6nidv-iets-fuzz-drv-check.drv
could not copy /nix/store/lip3qi4na9sz2wbalxw9ds78qc606bxi-iets-fuzzers-0.0.0: error: gRPC FetchNars failed: Stream removed (sendmsg: Broken pipe (32))
error: some outputs are unexpectedly invalid