these 4 derivations will be built: /nix/store/gf4h8x5zi2iylzdz65whjrx2ndc93k52-ruamel.yaml-0.17.40.tar.gz.drv /nix/store/hnqxnwhq4pzn337rcwnysb7cd5iwdfch-python3.14-ruamel-yaml-0.17.40.drv /nix/store/j8kb63znj53hfcbcwx8lzwcqfjj9z4p5-source.drv /nix/store/96dr5wm5k2kg5fh0a8l243fz65ligfp2-python3.14-evcouplings-0.2.1.drv these 26 paths will be fetched (130.4 MiB download, 476.2 MiB unpacked): /nix/store/yr19h6j9806xl5hm8k9a920jax8l349n-hh-suite-3.3.0 /nix/store/884qz72q85g622pr360q5l1225ydykyn-hmmer-3.4 /nix/store/hlbv2ii2c181qc3k56kknq24r0r2ah1y-python3.14-billiard-4.2.4 /nix/store/1kn842dvhmzs0zifvj498i4lp9zb0dmf-python3.14-bokeh-3.8.2 /nix/store/ihz9q28y84frni99adp8zzcin07j38gk-python3.14-contourpy-1.3.3 /nix/store/q2j58iim4i4mx6bwg4dx97y1828f4dhc-python3.14-cycler-0.12.1 /nix/store/hhmzvf64ry4z7g5mp77v1zfr4d7k2dfm-python3.14-editables-0.5 /nix/store/nhrljnw82767as8fd8pqag1x7mc6mj9i-python3.14-fonttools-4.63.0 /nix/store/j83caldc02xf7sirlshpigz3mqv7p0pd-python3.14-hatchling-1.30.1 /nix/store/80k5s6qxdgxng1c6bv0za1x7cyy9804w-python3.14-joblib-1.5.3 /nix/store/8kzshcy7n9rc2l2hgr561blmr7hykh0c-python3.14-kiwisolver-1.4.9 /nix/store/xr8l0d08wbmx663qhrwc11z8hraqcnzm-python3.14-llvmlite-0.47.0 /nix/store/bda5018g9p2l7hmv3iykc6lrh3d3n7va-python3.14-lz4-4.4.5 /nix/store/if8khkmgxckc8569smhxjy1v5zvvbyb0-python3.14-matplotlib-3.11.0 /nix/store/44ig0x6zrlnqpwcdgirxa84i52hrhdp7-python3.14-narwhals-2.23.0 /nix/store/0c61w8k1r20hcymrwiy7sa4xc1819lrq-python3.14-numba-0.65.1 /nix/store/r5vsy55zgw5qzkh357cmzpvmlrg7lwi7-python3.14-pathspec-1.1.1 /nix/store/z8zm1d0h20y4bgf3gv65nh9fxdbgqhiw-python3.14-pluggy-1.6.0 /nix/store/p2f9r934ipy8dfccxn5jbq2gyr61vlpq-python3.14-pyparsing-3.3.2 /nix/store/ckn8lagns0pgvm8ljfzwq73nvjapa1kq-python3.14-scikit-learn-1.8.0 /nix/store/jm9jxyf6j67d21f4c8imx98xy6rkrkd4-python3.14-seaborn-0.13.2 /nix/store/lyrrq10415pvhad7dwqpxdy4lzvwd5x3-python3.14-threadpoolctl-3.6.0 /nix/store/415a3qa5vc17giay4qn0zjlz37s5117q-python3.14-tkinter-3.14.6 /nix/store/xs6lxrcygrv9564fn78qwlqgl8q96ygm-python3.14-tornado-6.5.7 /nix/store/z6pgzqzraw8n6x1qb85rxmpvq6qfnnqz-python3.14-trove-classifiers-2026.5.20.19 /nix/store/7ksn06x8wjndjvwrfksjd93256g3pypg-python3.14-xyzservices-2026.3.0 building '/nix/store/jqq02knn8dzc3jk6flm2b7cy47qpjv5y-source.drv' building '/nix/store/s9q65ixhcy4nn61ryylb2dc5v36csz99-ruamel.yaml-0.17.40.tar.gz.drv' source> structuredAttrs is enabled ruamel.yaml-0.17.40.tar.gz> structuredAttrs is enabled source> source> trying https://github.com/debbiemarkslab/EVcouplings/archive/14c83457c6cfca8156aabe0615067447a2169791.tar.gz source> % Total % Received % Xferd Average Speed Time Time Time Current source> Dload Upload Total Spent Left Speed ruamel.yaml-0.17.40.tar.gz> ruamel.yaml-0.17.40.tar.gz> trying https://files.pythonhosted.org/packages/source/r/ruamel.yaml/ruamel.yaml-0.17.40.tar.gz ruamel.yaml-0.17.40.tar.gz> % Total % Received % Xferd Average Speed Time Time Time Current ruamel.yaml-0.17.40.tar.gz> Dload Upload Total Spent Left Speed source> 0 0 0 0 0 0 0 0 0 ruamel.yaml-0.17.40.tar.gz> 0 0 0 0 0 0 0 0 0 ruamel.yaml-0.17.40.tar.gz> 100 134.4k 100 134.4k 0 0 289.4k 0 0 building '/nix/store/hnqxnwhq4pzn337rcwnysb7cd5iwdfch-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-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/48azs8q3m2gc3vgrjlb2i89c12klzsna-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/48azs8q3m2gc3vgrjlb2i89c12klzsna-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/48azs8q3m2gc3vgrjlb2i89c12klzsna-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/g13nfjvdbmszw808xyzvw35in1s30s68-python3.14-setuptools-82.0.1/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/g13nfjvdbmszw808xyzvw35in1s30s68-python3.14-setuptools-82.0.1/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/g13nfjvdbmszw808xyzvw35in1s30s68-python3.14-setuptools-82.0.1/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/jxyrvv4gbpnp3ap5iy7wxwl1sg4x2x88-python3-3.14.6/lib/python3.14/ast.py) python3.14-ruamel-yaml-0.17.40> 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/hnqxnwhq4pzn337rcwnysb7cd5iwdfch-python3.14-ruamel-yaml-0.17.40.drv'. Reason: builder failed with exit code 1. Output paths: /nix/store/mn9ysfny2l8y456v7j4173dl28rpfypk-python3.14-ruamel-yaml-0.17.40-dist /nix/store/z72myw6x2gg1v12v2scsifqcvjzs160g-python3.14-ruamel-yaml-0.17.40 Last 25 log lines: > Creating a wheel... > pypa build flags: --no-isolation --outdir dist/ --wheel > * Getting build dependencies for wheel... > Traceback (most recent call last): > File "/nix/store/48azs8q3m2gc3vgrjlb2i89c12klzsna-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/48azs8q3m2gc3vgrjlb2i89c12klzsna-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/48azs8q3m2gc3vgrjlb2i89c12klzsna-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/g13nfjvdbmszw808xyzvw35in1s30s68-python3.14-setuptools-82.0.1/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/g13nfjvdbmszw808xyzvw35in1s30s68-python3.14-setuptools-82.0.1/lib/python3.14/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires > self.run_setup() > ~~~~~~~~~~~~~~^^ > File "/nix/store/g13nfjvdbmszw808xyzvw35in1s30s68-python3.14-setuptools-82.0.1/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/jxyrvv4gbpnp3ap5iy7wxwl1sg4x2x88-python3-3.14.6/lib/python3.14/ast.py) > > ERROR Backend subprocess exited when trying to invoke get_requires_for_build_wheel For full logs, run: nix log /nix/store/hnqxnwhq4pzn337rcwnysb7cd5iwdfch-python3.14-ruamel-yaml-0.17.40.drv source> 100 17.67M 0 17.67M 0 0 7.94M 0 00:02 6.09M source> unpacking source archive /build/download.tar.gz error: Cannot build '/nix/store/96dr5wm5k2kg5fh0a8l243fz65ligfp2-python3.14-evcouplings-0.2.1.drv'. Reason: 1 dependency failed. Output paths: /nix/store/jp6s6vnn0l58jrshg2sgmxjayfs4365q-python3.14-evcouplings-0.2.1 /nix/store/slxav42s76ki68kwqcsf1lmhfr7f8i7x-python3.14-evcouplings-0.2.1-dist error: Build failed due to failed dependency