these 2 derivations will be built: /nix/store/f3hghmy16lr33y07mpsx3ibfn5znjs0x-python3.14-ruamel-yaml-0.17.40.drv /nix/store/bp5aizkvsqvfhv05bfci23rwcw24ca6a-python3.14-evcouplings-0.2.1.drv building '/nix/store/f3hghmy16lr33y07mpsx3ibfn5znjs0x-python3.14-ruamel-yaml-0.17.40.drv' python3.14-ruamel-yaml-0.17.40> Sourcing python-remove-tests-dir-hook python3.14-ruamel-yaml-0.17.40> Sourcing python-catch-conflicts-hook.sh python3.14-ruamel-yaml-0.17.40> Sourcing python-remove-bin-bytecode-hook.sh python3.14-ruamel-yaml-0.17.40> Sourcing pypa-build-hook python3.14-ruamel-yaml-0.17.40> Using pypaBuildPhase python3.14-ruamel-yaml-0.17.40> Sourcing python-runtime-deps-check-hook python3.14-ruamel-yaml-0.17.40> Using pythonRuntimeDepsCheckHook python3.14-ruamel-yaml-0.17.40> Sourcing pypa-install-hook python3.14-ruamel-yaml-0.17.40> Using pypaInstallPhase python3.14-ruamel-yaml-0.17.40> Sourcing python-imports-check-hook.sh python3.14-ruamel-yaml-0.17.40> Using pythonImportsCheckPhase python3.14-ruamel-yaml-0.17.40> Sourcing python-metadata-check-hook.sh python3.14-ruamel-yaml-0.17.40> Using pythonMetadataCheckPhase python3.14-ruamel-yaml-0.17.40> Sourcing python-namespaces-hook python3.14-ruamel-yaml-0.17.40> Sourcing python-catch-conflicts-hook.sh python3.14-ruamel-yaml-0.17.40> Running phase: unpackPhase python3.14-ruamel-yaml-0.17.40> unpacking source archive /nix/store/5w5dlx1jqf227a7p6bn8zgw5fxbnn0az-ruamel.yaml-0.17.40.tar.gz python3.14-ruamel-yaml-0.17.40> source root is ruamel.yaml-0.17.40 python3.14-ruamel-yaml-0.17.40> setting SOURCE_DATE_EPOCH to timestamp 1697806397 of file "ruamel.yaml-0.17.40/setup.cfg" python3.14-ruamel-yaml-0.17.40> Running phase: patchPhase python3.14-ruamel-yaml-0.17.40> Running phase: updateAutotoolsGnuConfigScriptsPhase python3.14-ruamel-yaml-0.17.40> Running phase: configurePhase python3.14-ruamel-yaml-0.17.40> no configure script, doing nothing python3.14-ruamel-yaml-0.17.40> Running phase: buildPhase python3.14-ruamel-yaml-0.17.40> Executing pypaBuildPhase python3.14-ruamel-yaml-0.17.40> Creating a wheel... python3.14-ruamel-yaml-0.17.40> pypa build flags: --no-isolation --outdir dist/ --wheel python3.14-ruamel-yaml-0.17.40> * Getting build dependencies for wheel... python3.14-ruamel-yaml-0.17.40> Traceback (most recent call last): python3.14-ruamel-yaml-0.17.40> File "/nix/store/gxrvc2gq4kzz54dqi1mlqw7h4zy4l6aw-python3.14-pyproject-hooks-1.2.0/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 389, in python3.14-ruamel-yaml-0.17.40> main() python3.14-ruamel-yaml-0.17.40> ~~~~^^ python3.14-ruamel-yaml-0.17.40> File "/nix/store/gxrvc2gq4kzz54dqi1mlqw7h4zy4l6aw-python3.14-pyproject-hooks-1.2.0/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 373, in main python3.14-ruamel-yaml-0.17.40> json_out["return_val"] = hook(**hook_input["kwargs"]) python3.14-ruamel-yaml-0.17.40> ~~~~^^^^^^^^^^^^^^^^^^^^^^^^ python3.14-ruamel-yaml-0.17.40> File "/nix/store/gxrvc2gq4kzz54dqi1mlqw7h4zy4l6aw-python3.14-pyproject-hooks-1.2.0/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 143, in get_requires_for_build_wheel python3.14-ruamel-yaml-0.17.40> return hook(config_settings) python3.14-ruamel-yaml-0.17.40> File "/nix/store/xv8alksljvbyk0mrbf9xvl16ygx27ajn-python3.14-setuptools-83.0.0/lib/python3.14/site-packages/setuptools/build_meta.py", line 333, in get_requires_for_build_wheel python3.14-ruamel-yaml-0.17.40> return self._get_build_requires(config_settings, requirements=[]) python3.14-ruamel-yaml-0.17.40> ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ python3.14-ruamel-yaml-0.17.40> File "/nix/store/xv8alksljvbyk0mrbf9xvl16ygx27ajn-python3.14-setuptools-83.0.0/lib/python3.14/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires python3.14-ruamel-yaml-0.17.40> self.run_setup() python3.14-ruamel-yaml-0.17.40> ~~~~~~~~~~~~~~^^ python3.14-ruamel-yaml-0.17.40> File "/nix/store/xv8alksljvbyk0mrbf9xvl16ygx27ajn-python3.14-setuptools-83.0.0/lib/python3.14/site-packages/setuptools/build_meta.py", line 317, in run_setup python3.14-ruamel-yaml-0.17.40> exec(code, locals()) python3.14-ruamel-yaml-0.17.40> ~~~~^^^^^^^^^^^^^^^^ python3.14-ruamel-yaml-0.17.40> File "", line 79, in python3.14-ruamel-yaml-0.17.40> ImportError: cannot import name 'Str' from 'ast' (/nix/store/rgnappqqc5vbq60gza5fflyk84sylwl6-python3-3.14.6/lib/python3.14/ast.py) python3.14-ruamel-yaml-0.17.40> python3.14-ruamel-yaml-0.17.40> TIP pass --env-dir and --sdist-extract-dir to keep the build environment and sources, then see https://build.pypa.io/en/stable/how-to/troubleshooting.html#debug-a-failed-build for help debugging a failed build python3.14-ruamel-yaml-0.17.40> ERROR Backend subprocess exited when trying to invoke get_requires_for_build_wheel error: Cannot build '/nix/store/f3hghmy16lr33y07mpsx3ibfn5znjs0x-python3.14-ruamel-yaml-0.17.40.drv'. Reason: builder failed with exit code 1. Output paths: /nix/store/7pjrrks468ymbh1bkws4d80mv4xp58j8-python3.14-ruamel-yaml-0.17.40-dist /nix/store/ljac8w9mlnfvszza14k1x2vbizv6i082-python3.14-ruamel-yaml-0.17.40 Last 25 log lines: > pypa build flags: --no-isolation --outdir dist/ --wheel > * Getting build dependencies for wheel... > Traceback (most recent call last): > File "/nix/store/gxrvc2gq4kzz54dqi1mlqw7h4zy4l6aw-python3.14-pyproject-hooks-1.2.0/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 389, in > main() > ~~~~^^ > File "/nix/store/gxrvc2gq4kzz54dqi1mlqw7h4zy4l6aw-python3.14-pyproject-hooks-1.2.0/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 373, in main > json_out["return_val"] = hook(**hook_input["kwargs"]) > ~~~~^^^^^^^^^^^^^^^^^^^^^^^^ > File "/nix/store/gxrvc2gq4kzz54dqi1mlqw7h4zy4l6aw-python3.14-pyproject-hooks-1.2.0/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 143, in get_requires_for_build_wheel > return hook(config_settings) > File "/nix/store/xv8alksljvbyk0mrbf9xvl16ygx27ajn-python3.14-setuptools-83.0.0/lib/python3.14/site-packages/setuptools/build_meta.py", line 333, in get_requires_for_build_wheel > return self._get_build_requires(config_settings, requirements=[]) > ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > File "/nix/store/xv8alksljvbyk0mrbf9xvl16ygx27ajn-python3.14-setuptools-83.0.0/lib/python3.14/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires > self.run_setup() > ~~~~~~~~~~~~~~^^ > File "/nix/store/xv8alksljvbyk0mrbf9xvl16ygx27ajn-python3.14-setuptools-83.0.0/lib/python3.14/site-packages/setuptools/build_meta.py", line 317, in run_setup > exec(code, locals()) > ~~~~^^^^^^^^^^^^^^^^ > File "", line 79, in > ImportError: cannot import name 'Str' from 'ast' (/nix/store/rgnappqqc5vbq60gza5fflyk84sylwl6-python3-3.14.6/lib/python3.14/ast.py) > > TIP pass --env-dir and --sdist-extract-dir to keep the build environment and sources, then see https://build.pypa.io/en/stable/how-to/troubleshooting.html#debug-a-failed-build for help debugging a failed build > ERROR Backend subprocess exited when trying to invoke get_requires_for_build_wheel For full logs, run: nix log /nix/store/f3hghmy16lr33y07mpsx3ibfn5znjs0x-python3.14-ruamel-yaml-0.17.40.drv error: Cannot build '/nix/store/bp5aizkvsqvfhv05bfci23rwcw24ca6a-python3.14-evcouplings-0.2.1.drv'. Reason: 1 dependency failed. Output paths: /nix/store/596if06wskgj9j5b9i0mpj16wnxsiwl3-python3.14-evcouplings-0.2.1-dist /nix/store/gcppsg7xzaf4g8gzs4v548nmdw6d5byl-python3.14-evcouplings-0.2.1