Standard conda-build incorrectly using cp314t (free threaded) #5843
Description
Checklist
- I added a descriptive title
- I searched open reports and couldn't find a duplicate
What happened?
We run our build with (on GitHub actions):
conda build -q --python 3.14 -c conda-forge --override-channels --no-anaconda-upload --no-test --package-format=conda .
We get the following (only relevant section included):
## Package Plan ##
environment location: C:\Users\runneradmin\miniconda3\envs\test\conda-bld\nion-alignment_1763032886620\_h_env
The following NEW packages will be INSTALLED:
bzip2: 1.0.8-h0ad9c76_8 conda-forge
ca-certificates: 2025.11.12-h4c7d964_0 conda-forge
cython: 3.2.1-py314h18447e6_0 conda-forge
libblas: 3.9.0-38_hf2e6a31_mkl conda-forge
libcblas: 3.9.0-38_h2a3cdd5_mkl conda-forge
libexpat: 2.7.1-hac47afa_0 conda-forge
libffi: 3.5.2-h52bdfb6_0 conda-forge
libhwloc: 2.12.1-default_h64bd3f2_1002 conda-forge
libiconv: 1.18-hc1393d2_2 conda-forge
liblapack: 3.9.0-38_hf9ab0e9_mkl conda-forge
liblzma: 5.8.1-h2466b09_2 conda-forge
libmpdec: 4.0.0-h2466b09_0 conda-forge
libsqlite: 3.51.0-hf5d6505_0 conda-forge
libwinpthread: 12.0.0.r4.gg4f2fc60ca-h57928b3_10 conda-forge
libxml2: 2.15.1-h5d26750_0 conda-forge
libxml2-16: 2.15.1-h692994f_0 conda-forge
libzlib: 1.3.1-h2466b09_2 conda-forge
llvm-openmp: 21.1.5-hfa2b4ca_0 conda-forge
mkl: 2025.3.0-hac47afa_454 conda-forge
numpy: 2.3.4-py314hf08e5d2_0 conda-forge
openssl: 3.6.0-h725018a_0 conda-forge
pip: 25.3-pyh145f28c_0 conda-forge
python: 3.14.0-h7c1dbca_2_cp314t conda-forge
python_abi: 3.14-8_cp314t conda-forge
ripgrep: 15.1.0-h77a83cd_0 conda-forge
tbb: 2022.3.0-hd094cb3_1 conda-forge
tk: 8.6.13-h2c6b04d_2 conda-forge
tzdata: 2025b-h78e105d_0 conda-forge
ucrt: 10.0.26100.0-h57928b3_0 conda-forge
vc: 14.3-h2b53caa_32 conda-forge
vc14_runtime: 14.44.35208-h818238b_32 conda-forge
vcomp14: 14.44.35208-h818238b_32 conda-forge
zstd: 1.5.7-hbeecb71_2 conda-forge
The two lines are clearly incorrect (cp314t vs cp314) and the project fails to build.
python: 3.14.0-h7c1dbca_2_cp314t conda-forge
python_abi: 3.14-8_cp314t conda-forge
Conda Info
CI detected...
3 channel Terms of Service accepted
Channels:
- conda-forge
- defaults
Platform: win-64
Collecting package metadata (repodata.json): ...working... done
Solving environment: ...working... done
## Package Plan ##
environment location: C:\Users\runneradmin\miniconda3\envs\test
added / updated specs:
- conda-build
The following packages will be downloaded:
package | build
---------------------------|-----------------
archspec-0.2.5 | pyhd8ed1ab_0 50 KB conda-forge
attrs-25.4.0 | pyh71513ae_0 59 KB conda-forge
beautifulsoup4-4.14.2 | pyha770c72_0 87 KB conda-forge
boltons-25.0.0 | pyhd8ed1ab_0 295 KB conda-forge
brotli-python-1.2.0 | py312h9d5906e_0 328 KB conda-forge
certifi-2025.11.12 | pyhd8ed1ab_0 153 KB conda-forge
cffi-2.0.0 | py312he06e257_1 284 KB conda-forge
chardet-5.2.0 | pyhd8ed1ab_3 129 KB conda-forge
charset-normalizer-3.4.4 | pyhd8ed1ab_0 50 KB conda-forge
click-8.3.0 | pyh7428d3b_0 90 KB conda-forge
colorama-0.4.6 | pyhd8ed1ab_1 26 KB conda-forge
conda-25.9.1 | py312h2e8e312_0 1.2 MB conda-forge
conda-build-25.9.0 | py312h5ae4e53_1 749 KB conda-forge
conda-index-0.7.0 | pyhd8ed1ab_0 194 KB conda-forge
conda-libmamba-solver-25.4.0| pyhd8ed1ab_0 41 KB conda-forge
conda-package-handling-2.4.0| pyh7900ff3_2 252 KB conda-forge
conda-package-streaming-0.12.0| pyhd8ed1ab_0 21 KB conda-forge
cpp-expected-1.3.1 | h477610d_0 21 KB conda-forge
distro-1.9.0 | pyhd8ed1ab_1 41 KB conda-forge
evalidate-2.0.5 | pyhe01879c_0 16 KB conda-forge
filelock-3.20.0 | pyhd8ed1ab_0 18 KB conda-forge
fmt-12.0.0 | h29169d4_0 183 KB conda-forge
frozendict-2.4.6 | py312he06e257_1 31 KB conda-forge
h2-4.3.0 | pyhcf101f3_0 94 KB conda-forge
hpack-4.1.0 | pyhd8ed1ab_0 30 KB conda-forge
hyperframe-6.1.0 | pyhd8ed1ab_0 17 KB conda-forge
idna-3.11 | pyhd8ed1ab_0 50 KB conda-forge
jinja2-3.1.6 | pyhd8ed1ab_0 110 KB conda-forge
jsonpatch-1.33 | pyhd8ed1ab_1 17 KB conda-forge
jsonpointer-3.0.0 | py312h2e8e312_2 42 KB conda-forge
jsonschema-4.25.1 | pyhe01879c_0 80 KB conda-forge
jsonschema-specifications-2025.9.1| pyhcf101f3_0 19 KB conda-forge
krb5-1.21.3 | hdf4eb48_0 695 KB conda-forge
libarchive-3.8.2 | gpl_h26aea39_100 1.1 MB conda-forge
libcurl-8.17.0 | h43ecb02_0 370 KB conda-forge
libiconv-1.18 | hc1393d2_2 681 KB conda-forge
liblief-0.16.6 | hac47afa_1 2.9 MB conda-forge
libmamba-2.3.3 | h5fbfb43_1 4.9 MB conda-forge
libmambapy-2.3.3 | py312hc175272_1 492 KB conda-forge
libsolv-0.7.35 | h8883371_0 456 KB conda-forge
libssh2-1.11.1 | h9aa295b_0 286 KB conda-forge
libxml2-2.15.1 | h5d26750_0 42 KB conda-forge
libxml2-16-2.15.1 | h692994f_0 506 KB conda-forge
lz4-c-1.10.0 | h2466b09_1 137 KB conda-forge
lzo-2.10 | h6a83c73_1002 162 KB conda-forge
m2-conda-epoch-20250515 | 0_x86_64 7 KB conda-forge
m2-msys2-runtime-3.6.1.4 | hc364b38_6 2.1 MB conda-forge
m2-patch-2.7.6.3 | hc364b38_6 123 KB conda-forge
markupsafe-3.0.3 | py312h05f76fc_0 28 KB conda-forge
mbedtls-3.6.3.1 | he0c23c2_0 1.2 MB conda-forge
menuinst-2.4.1 | py312hbb81ca0_0 168 KB conda-forge
msgpack-python-1.1.2 | py312hf90b1b7_1 85 KB conda-forge
nlohmann_json-abi-3.12.0 | h0f90c79_1 4 KB conda-forge
packaging-25.0 | pyh29332c3_1 61 KB conda-forge
pkginfo-1.12.1.2 | pyhd8ed1ab_0 30 KB conda-forge
platformdirs-4.5.0 | pyhcf101f3_0 23 KB conda-forge
pluggy-1.6.0 | pyhd8ed1ab_0 24 KB conda-forge
psutil-7.1.3 | py312he5662c2_0 501 KB conda-forge
py-lief-0.16.6 | py312hbb81ca0_1 1.2 MB conda-forge
pybind11-abi-4 | hd8ed1ab_3 10 KB conda-forge
pycosat-0.6.6 | py312he06e257_3 77 KB conda-forge
pycparser-2.22 | pyh29332c3_1 108 KB conda-forge
pysocks-1.7.1 | pyh09c184e_7 21 KB conda-forge
python-libarchive-c-5.3 | pyhe01879c_1 29 KB conda-forge
python_abi-3.12 | 8_cp312 7 KB conda-forge
pytz-2025.2 | pyhd8ed1ab_0 185 KB conda-forge
pyyaml-6.0.3 | py312h05f76fc_0 176 KB conda-forge
referencing-0.37.0 | pyhcf101f3_0 51 KB conda-forge
reproc-14.2.5.post0 | h2466b09_0 36 KB conda-forge
reproc-cpp-14.2.5.post0 | he0c23c2_0 29 KB conda-forge
requests-2.32.5 | pyhd8ed1ab_0 58 KB conda-forge
ripgrep-15.1.0 | h77a83cd_0 1.6 MB conda-forge
rpds-py-0.28.0 | py312hdabe01f_2 233 KB conda-forge
ruamel.yaml-0.18.16 | py312he06e257_0 263 KB conda-forge
ruamel.yaml.clib-0.2.14 | py312he06e257_0 103 KB conda-forge
simdjson-4.0.7 | h49e36cd_0 264 KB conda-forge
soupsieve-2.8 | pyhd8ed1ab_0 37 KB conda-forge
tqdm-4.67.1 | pyhd8ed1ab_1 87 KB conda-forge
truststore-0.10.3 | pyhe01879c_0 23 KB conda-forge
typing-extensions-4.15.0 | h396c80c_0 89 KB conda-forge
typing_extensions-4.15.0 | pyhcf101f3_0 50 KB conda-forge
urllib3-2.5.0 | pyhd8ed1ab_0 99 KB conda-forge
win_inet_pton-1.1.0 | pyh7428d3b_8 9 KB conda-forge
yaml-0.2.5 | h6a83c73_3 62 KB conda-forge
yaml-cpp-0.8.0 | he0c23c2_0 145 KB conda-forge
zstandard-0.25.0 | py312he5662c2_1 366 KB conda-forge
zstd-1.5.7 | hbeecb71_2 346 KB conda-forge
------------------------------------------------------------
Total: 27.2 MB
The following NEW packages will be INSTALLED:
archspec conda-forge/noarch::archspec-0.2.5-pyhd8ed1ab_0
attrs conda-forge/noarch::attrs-25.4.0-pyh71513ae_0
beautifulsoup4 conda-forge/noarch::beautifulsoup4-4.14.2-pyha770c72_0
boltons conda-forge/noarch::boltons-25.0.0-pyhd8ed1ab_0
brotli-python conda-forge/win-64::brotli-python-1.2.0-py312h9d5906e_0
certifi conda-forge/noarch::certifi-2025.11.12-pyhd8ed1ab_0
cffi conda-forge/win-64::cffi-2.0.0-py312he06e257_1
chardet conda-forge/noarch::chardet-5.2.0-pyhd8ed1ab_3
charset-normalizer conda-forge/noarch::charset-normalizer-3.4.4-pyhd8ed1ab_0
click conda-forge/noarch::click-8.3.0-pyh7428d3b_0
colorama conda-forge/noarch::colorama-0.4.6-pyhd8ed1ab_1
conda conda-forge/win-64::conda-25.9.1-py312h2e8e312_0
conda-build conda-forge/win-64::conda-build-25.9.0-py312h5ae4e53_1
conda-index conda-forge/noarch::conda-index-0.7.0-pyhd8ed1ab_0
conda-libmamba-so~ conda-forge/noarch::conda-libmamba-solver-25.4.0-pyhd8ed1ab_0
conda-package-han~ conda-forge/noarch::conda-package-handling-2.4.0-pyh7900ff3_2
conda-package-str~ conda-forge/noarch::conda-package-streaming-0.12.0-pyhd8ed1ab_0
cpp-expected conda-forge/win-64::cpp-expected-1.3.1-h477610d_0
distro conda-forge/noarch::distro-1.9.0-pyhd8ed1ab_1
evalidate conda-forge/noarch::evalidate-2.0.5-pyhe01879c_0
filelock conda-forge/noarch::filelock-3.20.0-pyhd8ed1ab_0
fmt conda-forge/win-64::fmt-12.0.0-h29169d4_0
frozendict conda-forge/win-64::frozendict-2.4.6-py312he06e257_1
h2 conda-forge/noarch::h2-4.3.0-pyhcf101f3_0
hpack conda-forge/noarch::hpack-4.1.0-pyhd8ed1ab_0
hyperframe conda-forge/noarch::hyperframe-6.1.0-pyhd8ed1ab_0
idna conda-forge/noarch::idna-3.11-pyhd8ed1ab_0
jinja2 conda-forge/noarch::jinja2-3.1.6-pyhd8ed1ab_0
jsonpatch conda-forge/noarch::jsonpatch-1.33-pyhd8ed1ab_1
jsonpointer conda-forge/win-64::jsonpointer-3.0.0-py312h2e8e312_2
jsonschema conda-forge/noarch::jsonschema-4.25.1-pyhe01879c_0
jsonschema-specif~ conda-forge/noarch::jsonschema-specifications-2025.9.1-pyhcf101f3_0
krb5 conda-forge/win-64::krb5-1.21.3-hdf4eb48_0
libarchive conda-forge/win-64::libarchive-3.8.2-gpl_h26aea39_100
libcurl conda-forge/win-64::libcurl-8.17.0-h43ecb02_0
libiconv conda-forge/win-64::libiconv-1.18-hc1393d2_2
liblief conda-forge/win-64::liblief-0.16.6-hac47afa_1
libmamba conda-forge/win-64::libmamba-2.3.3-h5fbfb43_1
libmambapy conda-forge/win-64::libmambapy-2.3.3-py312hc175272_1
libsolv conda-forge/win-64::libsolv-0.7.35-h8883371_0
libssh2 conda-forge/win-64::libssh2-1.11.1-h9aa295b_0
libxml2 conda-forge/win-64::libxml2-2.15.1-h5d26750_0
libxml2-16 conda-forge/win-64::libxml2-16-2.15.1-h692994f_0
lz4-c conda-forge/win-64::lz4-c-1.10.0-h2466b09_1
lzo conda-forge/win-64::lzo-2.10-h6a83c73_1002
m2-conda-epoch conda-forge/win-64::m2-conda-epoch-20250515-0_x86_64
m2-msys2-runtime conda-forge/noarch::m2-msys2-runtime-3.6.1.4-hc364b38_6
m2-patch conda-forge/noarch::m2-patch-2.7.6.3-hc364b38_6
markupsafe conda-forge/win-64::markupsafe-3.0.3-py312h05f76fc_0
mbedtls conda-forge/win-64::mbedtls-3.6.3.1-he0c23c2_0
menuinst conda-forge/win-64::menuinst-2.4.1-py312hbb81ca0_0
msgpack-python conda-forge/win-64::msgpack-python-1.1.2-py312hf90b1b7_1
nlohmann_json-abi conda-forge/noarch::nlohmann_json-abi-3.12.0-h0f90c79_1
packaging conda-forge/noarch::packaging-25.0-pyh29332c3_1
pkginfo conda-forge/noarch::pkginfo-1.12.1.2-pyhd8ed1ab_0
platformdirs conda-forge/noarch::platformdirs-4.5.0-pyhcf101f3_0
pluggy conda-forge/noarch::pluggy-1.6.0-pyhd8ed1ab_0
psutil conda-forge/win-64::psutil-7.1.3-py312he5662c2_0
py-lief conda-forge/win-64::py-lief-0.16.6-py312hbb81ca0_1
pybind11-abi conda-forge/noarch::pybind11-abi-4-hd8ed1ab_3
pycosat conda-forge/win-64::pycosat-0.6.6-py312he06e257_3
pycparser conda-forge/noarch::pycparser-2.22-pyh29332c3_1
pysocks conda-forge/noarch::pysocks-1.7.1-pyh09c184e_7
python-libarchive~ conda-forge/noarch::python-libarchive-c-5.3-pyhe01879c_1
python_abi conda-forge/noarch::python_abi-3.12-8_cp312
pytz conda-forge/noarch::pytz-2025.2-pyhd8ed1ab_0
pyyaml conda-forge/win-64::pyyaml-6.0.3-py312h05f76fc_0
referencing conda-forge/noarch::referencing-0.37.0-pyhcf101f3_0
reproc conda-forge/win-64::reproc-14.2.5.post0-h2466b09_0
reproc-cpp conda-forge/win-64::reproc-cpp-14.2.5.post0-he0c23c2_0
requests conda-forge/noarch::requests-2.32.5-pyhd8ed1ab_0
ripgrep conda-forge/win-64::ripgrep-15.1.0-h77a83cd_0
rpds-py conda-forge/win-64::rpds-py-0.28.0-py312hdabe01f_2
ruamel.yaml conda-forge/win-64::ruamel.yaml-0.18.16-py312he06e257_0
ruamel.yaml.clib conda-forge/win-64::ruamel.yaml.clib-0.2.14-py312he06e257_0
simdjson conda-forge/win-64::simdjson-4.0.7-h49e36cd_0
soupsieve conda-forge/noarch::soupsieve-2.8-pyhd8ed1ab_0
tqdm conda-forge/noarch::tqdm-4.67.1-pyhd8ed1ab_1
truststore conda-forge/noarch::truststore-0.10.3-pyhe01879c_0
typing-extensions conda-forge/noarch::typing-extensions-4.15.0-h396c80c_0
typing_extensions conda-forge/noarch::typing_extensions-4.15.0-pyhcf101f3_0
urllib3 conda-forge/noarch::urllib3-2.5.0-pyhd8ed1ab_0
win_inet_pton conda-forge/noarch::win_inet_pton-1.1.0-pyh7428d3b_8
yaml conda-forge/win-64::yaml-0.2.5-h6a83c73_3
yaml-cpp conda-forge/win-64::yaml-cpp-0.8.0-he0c23c2_0
zstandard conda-forge/win-64::zstandard-0.25.0-py312he5662c2_1
zstd conda-forge/win-64::zstd-1.5.7-hbeecb71_2
Preparing transaction: ...working... done
Verifying transaction: ...working... done
Executing transaction: ...working... doneConda Config
N/AConda list
N/AAdditional Context
This started occurring sometime after Nov 12 9:40PM PST.