these 2 derivations will be built:
  /nix/store/9h73wxn647d6ik0vqdhyfb0x6zgm8yxq-t3code-0.1.2.drv
  /nix/store/krr78c5y5nb2x48vp4spf9ndivgwyy1n-check-t3code.drv
this path will be fetched (0.0 KiB download, 293.3 MiB unpacked):
  /nix/store/fcfjj0q282s1i6mkkkhcmj536ymbh1x2-t3code-0.1.2-desktop
could not copy /nix/store/asi5kinixnxki5gar8xcddsy3a6jwlgg-t3code-0.1.2-desktop: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv4:65.21.215.17:50051: handshaker shutdown
error: some outputs are unexpectedly invalid