these 2 derivations will be built:
  /nix/store/rdnq4k61mg8aiq2v4kmxn3qcn1zxnbwv-baserom.us.z64.drv
  /nix/store/naapgimmcj45vhlxc9n99hcsvk891gmi-sm64ex-coop-0.pre+date=2022-05-14.drv
building '/nix/store/pnn1zz159xmwk04pgizh8c5fn3sjk905-baserom.us.z64.drv'
baserom.us.z64> 
baserom.us.z64> ***
baserom.us.z64> This nix expression requires that baserom.us.z64 is
baserom.us.z64> already part of the store. To get this file you can dump your Super Mario 64 cartridge's contents
baserom.us.z64> and add it to the nix store with nix-store --add-fixed sha256 <FILE>.
baserom.us.z64> Note that if you are not using a US baserom, you must overwrite the "region" attribute with either "eu" or "jp".
baserom.us.z64> 
baserom.us.z64> ***
baserom.us.z64> 
error: Cannot build '/nix/store/pnn1zz159xmwk04pgizh8c5fn3sjk905-baserom.us.z64.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/h7jbvsvas5h7gxfr90f8rxkc8455zp0z-baserom.us.z64
       Last 9 log lines:
       >
       > ***
       > This nix expression requires that baserom.us.z64 is
       > already part of the store. To get this file you can dump your Super Mario 64 cartridge's contents
       > and add it to the nix store with nix-store --add-fixed sha256 <FILE>.
       > Note that if you are not using a US baserom, you must overwrite the "region" attribute with either "eu" or "jp".
       >
       > ***
       >
       For full logs, run:
         nix log /nix/store/pnn1zz159xmwk04pgizh8c5fn3sjk905-baserom.us.z64.drv
error: build of resolved derivation '/nix/store/pnn1zz159xmwk04pgizh8c5fn3sjk905-baserom.us.z64.drv' failed
error: Cannot build '/nix/store/naapgimmcj45vhlxc9n99hcsvk891gmi-sm64ex-coop-0.pre+date=2022-05-14.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/mlhckck1ny6knlr1skws09chr7qix6h0-sm64ex-coop-0.pre+date=2022-05-14