Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: ec 0.2.0 -> 0.3.1 https://github.com/chojs23/ec/releases
attrpath: ec
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/1sskgzs40q0mg9pbkgxlw80qdikkaqg7-packages.json.drv
building '/nix/store/1sskgzs40q0mg9pbkgxlw80qdikkaqg7-packages.json.drv'...

Going to be running update for following packages:
 - ec-0.2.0

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - ec-0.2.0: UPDATING ...
 - ec-0.2.0: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/ec/ec/package.nix b/pkgs/by-name/ec/ec/package.nix
index 98ff0bd61e68..757e3378dcec 100644
--- a/pkgs/by-name/ec/ec/package.nix
+++ b/pkgs/by-name/ec/ec/package.nix
@@ -10,13 +10,13 @@
 
 buildGoModule (finalAttrs: {
   pname = "ec";
-  version = "0.2.0";
+  version = "0.3.1";
 
   src = fetchFromGitHub {
     owner = "chojs23";
     repo = "ec";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-vpl9Gz/DVjdplx80oQsTbH2hTS/3Y7dKZw4x52V6wJU=";
+    hash = "sha256-tnOr0AVPwEm9gONa7gl3TzhPC5/1WEAbW7Ew5/mNn5U=";
   };
 
   vendorHash = "sha256-bV5y8zKculYULkFl9J95qebLOzdTT/LuYycqMmHKZ+g=";

No auto update branch exists
There might already be an open PR for this update:
- ec: 0.2.0 -> 0.3.1
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/498703"