these 2 derivations will be built:
  /nix/store/2scpag724qnripv6dkwkra2yjd8c5062-nix-source-patched-source.drv
  /nix/store/ai5vmmgdjnyj3kg591657c9pxp92h790-equal-contents-trivial-patch-does-not-change-source-contents.drv
error: timed out after 1200 seconds