Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: folly 2026.01.19.00 -> 2026.02.02.00 https://github.com/facebook/folly/releases
attrpath: folly
Checking auto update branch...
[version] 
[version] skipping because derivation has updateScript
[rustCrateVersion] 
[rustCrateVersion] No cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] this derivation will be built:
  /nix/store/19f46hvlq2mg4kpfwiava7l8456ic3gr-packages.json.drv
building '/nix/store/19f46hvlq2mg4kpfwiava7l8456ic3gr-packages.json.drv'...

Going to be running update for following packages:
 - folly-2026.01.19.00

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - folly-2026.01.19.00: UPDATING ...
 - folly-2026.01.19.00: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/fo/folly/package.nix b/pkgs/by-name/fo/folly/package.nix
index 605559e58ce6..24aed32f90ce 100644
--- a/pkgs/by-name/fo/folly/package.nix
+++ b/pkgs/by-name/fo/folly/package.nix
@@ -40,7 +40,7 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "folly";
-  version = "2026.01.19.00";
+  version = "2026.02.02.00";
 
   # split outputs to reduce downstream closure sizes
   outputs = [
@@ -52,7 +52,7 @@ stdenv.mkDerivation (finalAttrs: {
     owner = "facebook";
     repo = "folly";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-gfmN/9LizPdacUd1eJxFx79I63SwqX0NaWFgbe6vbFk=";
+    hash = "sha256-yMa355VaDdQelMLpDj8+Iwu8A56fnxJkqGJ70wj+po8=";
   };
 
   nativeBuildInputs = [

An auto update branch exists with message `folly: 2025.10.13.00 -> 2025.12.01.00`. New version is 2026.02.02.00.
The auto update branch does not match or exceed the new version.
Received ExitFailure 1 when running
Raw command: nix-build --option sandbox true --arg config "{ allowUnfree = true; allowAliases = false; }" --arg overlays "[ ]" -A folly
nix build failed.
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
  243 |         ticket.use(this), std::forward<Args>(args)...);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~   
/build/source/folly/test/MPMCPipelineTest.cpp:92:34:   required from here
   92 |           a.blockingWriteStage<0>(ticket, "");
      |           ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
/build/source/folly/MPMCQueue.h:1380:24: error: static assertion failed
 1380 |     static_assert(std::is_nothrow_constructible_v<T, Args...>);
      |                   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/build/source/folly/MPMCQueue.h:1380:24: note: 'std::is_nothrow_constructible_v<std::__cxx11::basic_string<char>, const char (&)[1]>' evaluates to false
[652/1044] Building CXX object CMakeFiles/optional_coroutines_test.dir/folly/test/OptionalCoroutinesTest.cpp.o
[653/1044] Building CXX object CMakeFiles/portability_test.dir/folly/test/PortabilityTest.cpp.o
[654/1044] Building CXX object CMakeFiles/locks_test.dir/folly/test/SpinLockTest.cpp.o
[655/1044] Building CXX object CMakeFiles/lang_to_ascii_benchmark.dir/folly/lang/test/ToAsciiBench.cpp.o
/build/source/folly/lang/test/ToAsciiBench.cpp: In function 'void __static_initialization_and_destruction_0()':
/build/source/folly/lang/test/ToAsciiBench.cpp:464:1: note: variable tracking size limit exceeded with '-fvar-tracking-assignments', retrying without
  464 | }
      | ^
[656/1044] Building CXX object CMakeFiles/producer_consumer_queue_benchmark.dir/folly/test/ProducerConsumerQueueBenchmark.cpp.o
[657/1044] Building CXX object CMakeFiles/memcpy_benchmark.dir/folly/test/MemcpyBenchmark.cpp.o
[658/1044] Building CXX object CMakeFiles/padded_test.dir/folly/test/PaddedTest.cpp.o
[659/1044] Building CXX object CMakeFiles/memory_idler_test.dir/folly/test/MemoryIdlerTest.cpp.o
[660/1044] Building CXX object CMakeFiles/format_test.dir/folly/test/FormatTest.cpp.o
[661/1044] Building CXX object CMakeFiles/optional_test.dir/folly/test/OptionalTest.cpp.o
[662/1044] Building CXX object CMakeFiles/memory_test.dir/folly/test/MemoryTest.cpp.o
[663/1044] Building CXX object CMakeFiles/fbstring_test.dir/folly/test/FBStringTest.cpp.o
[664/1044] Building CXX object CMakeFiles/math_test.dir/folly/test/MathTest.cpp.o
[665/1044] Building CXX object CMakeFiles/conv_test.dir/folly/test/ConvTest.cpp.o
[666/1044] Building CXX object CMakeFiles/container_f14_map_test.dir/folly/container/test/F14MapTest.cpp.o
ninja: build stopped: subcommand failed.