Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: fluidsynth 2.5.6 -> 2.6.1 https://github.com/FluidSynth/fluidsynth/releases
attrpath: fluidsynth
Checking auto update branch...
An auto update branch exists with message `fluidsynth: 2.5.6 -> 2.5.7`. New version is 2.6.1.
The auto update branch does not match or exceed the new version.
[version] 
[version] updated version and sha256
[rustCrateVersion] 
[rustCrateVersion] No cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] skipping because derivation has no updateScript
Diff after rewrites:
diff --git a/pkgs/by-name/fl/fluidsynth/package.nix b/pkgs/by-name/fl/fluidsynth/package.nix
index 13b0587b9f22..20a4578d40da 100644
--- a/pkgs/by-name/fl/fluidsynth/package.nix
+++ b/pkgs/by-name/fl/fluidsynth/package.nix
@@ -13,13 +13,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "fluidsynth";
-  version = "2.5.6";
+  version = "2.6.1";
 
   src = fetchFromGitHub {
     owner = "FluidSynth";
     repo = "fluidsynth";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-q4NdfemCprYEYCrKlHumeRM8TyNz8eJcFM18EsB0p0c=";
+    hash = "sha256-8rOaZHEhKsh5N/2xMxYkxOqj4rI0G4O0HCklv3+RxSg=";
     fetchSubmodules = true;
   };
 

Received ExitFailure 1 when running
Raw command: nix-build --option sandbox true --arg config "{ allowUnfree = true; allowAliases = false; }" --arg overlays "[ ]" -A fluidsynth
nix build failed.
-- Could NOT find Readline (missing: Readline_LIBRARY Readline_INCLUDE_DIR) 
-- Looking for sys/soundcard.h
-- Looking for sys/soundcard.h - found
-- Looking for linux/soundcard.h
-- Looking for linux/soundcard.h - found
-- Looking for machine/soundcard.h
-- Looking for machine/soundcard.h - not found
-- Found OpenMP_C: -fopenmp (found version "4.5")
-- Found OpenMP: TRUE (found version "4.5") found components: C
-- Found OpenMP version: 4.5 date: 201511
CMake Error at /nix/store/c3bm9h7k398cmg00d4rss6hcxkl2zbl2-cmake-4.4.2/share/cmake-4.4/Modules/ExternalProject/shared_internal_commands.cmake:932 (message):
  error: could not find git for clone of signalsmith-linear-populate
Call Stack (most recent call first):
  /nix/store/c3bm9h7k398cmg00d4rss6hcxkl2zbl2-cmake-4.4.2/share/cmake-4.4/Modules/ExternalProject.cmake:3283 (_ep_add_download_command)
  CMakeLists.txt:29 (ExternalProject_Add)


-- Configuring incomplete, errors occurred!

CMake Error at /nix/store/c3bm9h7k398cmg00d4rss6hcxkl2zbl2-cmake-4.4.2/share/cmake-4.4/Modules/FetchContent.cmake:1921 (message):
  CMake step for signalsmith-linear failed: 1
Call Stack (most recent call first):
  /nix/store/c3bm9h7k398cmg00d4rss6hcxkl2zbl2-cmake-4.4.2/share/cmake-4.4/Modules/FetchContent.cmake:1622 (__FetchContent_populateSubbuild)
  /nix/store/c3bm9h7k398cmg00d4rss6hcxkl2zbl2-cmake-4.4.2/share/cmake-4.4/Modules/FetchContent.cmake:2160:EVAL:2 (__FetchContent_doPopulation)
  /nix/store/c3bm9h7k398cmg00d4rss6hcxkl2zbl2-cmake-4.4.2/share/cmake-4.4/Modules/FetchContent.cmake:2160 (cmake_language)
  /nix/store/c3bm9h7k398cmg00d4rss6hcxkl2zbl2-cmake-4.4.2/share/cmake-4.4/Modules/FetchContent.cmake:2401 (__FetchContent_Populate)
  signalsmith-audio-basics/CMakeLists.txt:16 (FetchContent_MakeAvailable)


-- Configuring incomplete, errors occurred!