crosvm 0 -> 1
attrpath: crosvm
Checking auto update branch...
[version] 
[version] generic version rewriter does not support multiple hashes
[rustCrateVersion] 
[rustCrateVersion] skipping because derivation has updateScript
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorSha256 or vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] this derivation will be built:
  /nix/store/h3aliibz8p2rnda3v86nh9ddlsbw69ma-packages.json.drv
building '/nix/store/h3aliibz8p2rnda3v86nh9ddlsbw69ma-packages.json.drv'...

Going to be running update for following packages:
 - crosvm-121.3

Press Enter key to continue...
Running update for:
 - crosvm-121.3: UPDATING ...
 - crosvm-121.3: DONE.

Packages updated!

The diff was empty after rewrites.