Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: buildkite-agent 3.121.0 -> 3.123.1 https://github.com/buildkite/agent/releases
attrpath: buildkite-agent
Checking auto update branch...
[version] 
[version] generic version rewriter does not support multiple hashes
[rustCrateVersion] 
[rustCrateVersion] No cargoHash found
[golangModuleVersion] 
[golangModuleVersion] skipping because derivation has updateScript
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] this derivation will be built:
  /nix/store/8v42d0a9aak852pbq8h2w5ixlsxanrkb-packages.json.drv
building '/nix/store/8v42d0a9aak852pbq8h2w5ixlsxanrkb-packages.json.drv'...

Going to be running update for following packages:
 - buildkite-agent-3.121.0

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - buildkite-agent-3.121.0: UPDATING ...
 - buildkite-agent-3.121.0: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/bu/buildkite-agent/package.nix b/pkgs/by-name/bu/buildkite-agent/package.nix
index 89ab8a12d59d..0175127c35f8 100644
--- a/pkgs/by-name/bu/buildkite-agent/package.nix
+++ b/pkgs/by-name/bu/buildkite-agent/package.nix
@@ -14,13 +14,13 @@
 }:
 buildGoModule (finalAttrs: {
   pname = "buildkite-agent";
-  version = "3.121.0";
+  version = "4.0.0-beta.1";
 
   src = fetchFromGitHub {
     owner = "buildkite";
     repo = "agent";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-QlslPoLpqzuX05bp58xz/3Vhj0imEqCleO1hhe1PPXM=";
+    hash = "sha256-HzQpj7qI4G/ICyoY9JBWCkAbN8lL2A6era/Dm9euVqc=";
   };
 
   vendorHash = "sha256-rv5CqNpjmXhGcZ3KQBX0Z2428upWBUVkdRjEG4QWEoY=";

No auto update branch exists
Received ExitFailure 1 when running
Raw command: nix-build --option sandbox true --arg config "{ allowUnfree = true; allowAliases = false; }" --arg overlays "[ ]" -A buildkite-agent
Received ExitFailure 1 when running
Raw command: nix --extra-experimental-features nix-command log -f . buildkite-agent --arg config "{ allowUnfree = true; allowAliases = false; }" --arg overlays "[ ]"
Standard output:

error: build log of 'buildkite-agent' is not available