Build failure: scx_cscheds-1.0.13.drv

[secretmango]

Nixpkgs version

• Unstable (25.11)

Steps to reproduce

I enabled the option for sched-ext, resulting in a failure of nixos-rebuild

Can Hydra reproduce this build failure?

Please select the Hydra Status.

Link to Hydra build job

No response

Relevant log output

building the system configuration...
error (ignored): error: cannot unlink "/tmp/nix-build-python3.14-3.14.0b4-doc.drv-0/build": Directory not empty
error (ignored): error: cannot unlink "/tmp/nix-build-openjdk-8u442-b06.drv-0/build/source/build/linux-x86_64-normal-server-release/hotspot/linux_amd64_compiler2/generated/dependencies": Directory not empty
error: cycle detected in build of '/nix/store/m5yxynzfclwr17kn9wmb664rps2vp7i4-scx_cscheds-1.0.13.drv' in the references of output 'dev' from output 'out'
Command 'nix --extra-experimental-features 'nix-command flakes' build --print-out-paths '/etc/nixos#nixosConfigurations."PC".config.system.build.toplevel' --no-link' returned non-zero exit status 1.

Additional context

No response

System metadata

• system: "x86_64-linux"
• host os: Linux 6.12.36, NixOS, 25.11 (Xantusia), 25.11.20250708.9807714
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.28.4
• channels(root): ""
• nixpkgs: /nix/store/bgl6ldj5ihbwcq8p42z3a0qzgqafgk2b-source

Notify maintainers

---

Note for maintainers: Please tag this issue in your pull request description. (i.e. Resolves #ISSUE.)

I assert that this issue is relevant for Nixpkgs

• I assert that this is a bug and not a support request.
• I assert that this is not a duplicate of an existing issue.
• I assert that I have read the NixOS Code of Conduct and agree to abide by it.

Is this issue important to you?

Add a 👍 reaction to issues you find important.

[liberodark]

Hi,

I think this PR can help :
#424862

Best Regards