vala 0 -> 1
attrpath: vala
Checking auto update branch...
[version] 
[version] skipping because derivation has updateScript
[rustCrateVersion] 
[rustCrateVersion] No cargoSha256 or cargoHash found
[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/z3gxnk7wcwb2c2jkffxcrnk2srbx98wm-packages.json.drv
building '/nix/store/z3gxnk7wcwb2c2jkffxcrnk2srbx98wm-packages.json.drv'...

Going to be running update for following packages:
 - vala-0.56.14

Press Enter key to continue...
Running update for:
 - vala-0.56.14: UPDATING ...
 - vala-0.56.14: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/development/compilers/vala/default.nix b/pkgs/development/compilers/vala/default.nix
index d29fb743c7dc..4a327c93c140 100644
--- a/pkgs/development/compilers/vala/default.nix
+++ b/pkgs/development/compilers/vala/default.nix
@@ -86,8 +86,8 @@ let
 
 in rec {
   vala_0_56 = generic {
-    version = "0.56.14";
-    sha256 = "k4LCaMqb3AKq7cgVKpgYvzk1JzBB9inFbeQQ42Cj9Vc=";
+    version = "0.56.16";
+    sha256 = "BUh7VgD10vCeZqdTzM2POcG/+fFIrqG3d01QW5yLyps=";
   };
 
   vala = vala_0_56;

No auto update branch exists
Received ExitFailure 1 when running
Raw command: /nix/store/v7gdmdc9yhx3ngh840xx5kr46840s73b-nix-2.18.2/bin/nix-build --option sandbox true --arg config "{ allowBroken = true; allowUnfree = true; allowAliases = false; }" --arg overlays "[ ]" -A vala
nix build failed.
checking whether C compiler accepts -Werror=compare-distinct-pointer-types... no
checking whether C compiler accepts -Werror=empty-body... yes
checking whether C compiler accepts -Werror=comment... yes
checking whether C compiler accepts -Werror=strict-overflow... yes
checking whether C compiler accepts -Werror=shift-overflow... yes
checking whether C compiler accepts -Wformat=2... yes
checking whether C compiler accepts -Werror=format-security... yes
checking whether C compiler accepts -Werror=format-nonliteral... yes
checking whether C compiler accepts -Werror=format-overflow=2... yes
checking whether C compiler accepts -Werror=format-truncation=2... yes
checking whether C compiler accepts -Werror=int-conversion... yes
checking whether C compiler accepts -Werror=duplicated-branches... yes
checking whether C compiler accepts -Werror=duplicated-cond... yes
checking whether C compiler accepts -Werror=declaration-after-statement... yes
checking whether C compiler accepts -Werror=maybe-uninitialized... yes
checking whether C compiler accepts -Werror=missing-braces... yes
checking whether C compiler accepts -Werror=missing-declarations... yes
checking whether C compiler accepts -Werror=missing-prototypes... yes
checking whether C compiler accepts -Werror=strict-prototypes... yes
checking whether C compiler accepts -Werror=bool-compare... yes
checking whether C compiler accepts -Werror=tautological-pointer-compare... no
checking whether C compiler accepts -Werror=logical-not-parentheses... yes
checking whether C compiler accepts -Werror=address... yes
checking whether C compiler accepts -Werror=array-bounds... yes
checking whether C compiler accepts -Werror=array-parameter... yes
checking whether C compiler accepts -Werror=array-parameter=2... yes
checking whether C compiler accepts -Werror=enum-conversion... yes
checking for glib-2.0 >= 2.48.0 gobject-2.0 >= 2.48.0... yes
checking for gmodule-2.0 >= 2.48.0... yes
checking for GI_GIRDIR... configure: error: Unable to retrieve girdir from gobject-introspection-1.0.pc