2025-05-30T13:03:34,090 Created temporary directory: /tmp/pip-build-tracker-6u9ekpwi 2025-05-30T13:03:34,091 Initialized build tracking at /tmp/pip-build-tracker-6u9ekpwi 2025-05-30T13:03:34,092 Created build tracker: /tmp/pip-build-tracker-6u9ekpwi 2025-05-30T13:03:34,092 Entered build tracker: /tmp/pip-build-tracker-6u9ekpwi 2025-05-30T13:03:34,093 Created temporary directory: /tmp/pip-wheel-kk665r3c 2025-05-30T13:03:34,097 Created temporary directory: /tmp/pip-ephem-wheel-cache-rl8msk54 2025-05-30T13:03:34,151 Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple 2025-05-30T13:03:34,154 2 location(s) to search for versions of kkf: 2025-05-30T13:03:34,154 * https://pypi.org/simple/kkf/ 2025-05-30T13:03:34,154 * https://www.piwheels.org/simple/kkf/ 2025-05-30T13:03:34,155 Fetching project page and analyzing links: https://pypi.org/simple/kkf/ 2025-05-30T13:03:34,155 Getting page https://pypi.org/simple/kkf/ 2025-05-30T13:03:34,157 Found index url https://pypi.org/simple/ 2025-05-30T13:03:34,306 Fetched page https://pypi.org/simple/kkf/ as application/vnd.pypi.simple.v1+json 2025-05-30T13:03:34,310 Skipping link: No binaries permitted for kkf: https://files.pythonhosted.org/packages/81/b1/df078c495b9049554d1624b9f26b4cf2d2b62d1f284a3900d0851074969e/kkf-0.11-py3-none-any.whl (from https://pypi.org/simple/kkf/) (requires-python:>=3.6) 2025-05-30T13:03:34,311 Found link https://files.pythonhosted.org/packages/9e/80/30b1263a08f255ad22f268ee30394c2e571bbb89402a3b5769b10f751f67/kkf-0.11.tar.gz (from https://pypi.org/simple/kkf/) (requires-python:>=3.6), version: 0.11 2025-05-30T13:03:34,312 Skipping link: No binaries permitted for kkf: https://files.pythonhosted.org/packages/06/3a/3949b9cea8dd339b4fbdc0358f81382b37e14293b1490bfb265587aa02f9/kkf-0.12-py3-none-any.whl (from https://pypi.org/simple/kkf/) (requires-python:>=3.6) 2025-05-30T13:03:34,312 Found link https://files.pythonhosted.org/packages/05/8c/3eb4761369e0f0ca54fbf8a5022eab37eaf24034ba695cc68a3fbcd2bcea/kkf-0.12.tar.gz (from https://pypi.org/simple/kkf/) (requires-python:>=3.6), version: 0.12 2025-05-30T13:03:34,313 Skipping link: No binaries permitted for kkf: https://files.pythonhosted.org/packages/66/2b/c9a25403ad3fe18e1b86cdbaed44c926ebd6d463045ce4455e63ac438518/kkf-0.13-py3-none-any.whl (from https://pypi.org/simple/kkf/) (requires-python:>=3.6) 2025-05-30T13:03:34,314 Found link https://files.pythonhosted.org/packages/a3/12/3ae7e59f7246fa2f1cf29a756ee6a18c9c3a08134a6650cdf9baa01b8ae3/kkf-0.13.tar.gz (from https://pypi.org/simple/kkf/) (requires-python:>=3.6), version: 0.13 2025-05-30T13:03:34,314 Skipping link: No binaries permitted for kkf: https://files.pythonhosted.org/packages/1e/19/062eb77e0a89730e7ea88c14affb139ee84ca335076e4be25eb4d5b21e2c/kkf-0.14-py3-none-any.whl (from https://pypi.org/simple/kkf/) (requires-python:>=3.6) 2025-05-30T13:03:34,315 Found link https://files.pythonhosted.org/packages/93/c6/7c483eefdd82dd47e4bac9d7ce332613c5f7f2100447b438a8a5db40dcf0/kkf-0.14.tar.gz (from https://pypi.org/simple/kkf/) (requires-python:>=3.6), version: 0.14 2025-05-30T13:03:34,316 Skipping link: No binaries permitted for kkf: https://files.pythonhosted.org/packages/5a/81/622679ed0c979e584f74a5767f71548622f8ea530d77688a7ba3d9e4e6eb/kkf-0.15-py3-none-any.whl (from https://pypi.org/simple/kkf/) (requires-python:>=3.6) 2025-05-30T13:03:34,317 Found link https://files.pythonhosted.org/packages/9f/96/393e4628b2460be9c91e23226714dafe6034843e1ff5c9ef9b6a740b3534/kkf-0.15.tar.gz (from https://pypi.org/simple/kkf/) (requires-python:>=3.6), version: 0.15 2025-05-30T13:03:34,317 Skipping link: No binaries permitted for kkf: https://files.pythonhosted.org/packages/a7/d8/bd3f54508e9be22f2a966f34bc620d173b4aab0384bcf06ea8f34240cc37/kkf-0.16-py3-none-any.whl (from https://pypi.org/simple/kkf/) (requires-python:>=3.6) 2025-05-30T13:03:34,318 Found link https://files.pythonhosted.org/packages/b5/8d/5a20e22dee9f8177f679b5229d379bce15419c34c2f412f39c3e6535b127/kkf-0.16.tar.gz (from https://pypi.org/simple/kkf/) (requires-python:>=3.6), version: 0.16 2025-05-30T13:03:34,319 Skipping link: No binaries permitted for kkf: https://files.pythonhosted.org/packages/99/8d/d6fbba71682fd00d953f2d835c7dd05bd837fbfb142303128ee48f81c0c8/kkf-0.17-py3-none-any.whl (from https://pypi.org/simple/kkf/) (requires-python:>=3.6) 2025-05-30T13:03:34,320 Found link https://files.pythonhosted.org/packages/44/0d/31c5423f7797f567e8c8d9106f9d2d87b0f52ce43c0aa1d6e479550a67d4/kkf-0.17.tar.gz (from https://pypi.org/simple/kkf/) (requires-python:>=3.6), version: 0.17 2025-05-30T13:03:34,320 Skipping link: No binaries permitted for kkf: https://files.pythonhosted.org/packages/5c/38/e60f5f1ec9e3b11a00be7fa0c9c74552fcc8ff8ac91cd7b150205621ace0/kkf-0.18-py3-none-any.whl (from https://pypi.org/simple/kkf/) (requires-python:>=3.6) 2025-05-30T13:03:34,321 Found link https://files.pythonhosted.org/packages/90/38/9cb30a7fd830bd67fe9677bae432bd7b0489ab3a4cd246fa06e246e36d6d/kkf-0.18.tar.gz (from https://pypi.org/simple/kkf/) (requires-python:>=3.6), version: 0.18 2025-05-30T13:03:34,321 Skipping link: No binaries permitted for kkf: https://files.pythonhosted.org/packages/0f/3f/dbad176e494279ce6339a31b5b51c8f97081cfc2d822187bb4820e0d615f/kkf-0.19-py3-none-any.whl (from https://pypi.org/simple/kkf/) (requires-python:>=3.6) 2025-05-30T13:03:34,322 Found link https://files.pythonhosted.org/packages/c5/3a/1857f0219534b9c90e72a45931c9098e8dac7299004ce4a2c19ba11755a3/kkf-0.19.tar.gz (from https://pypi.org/simple/kkf/) (requires-python:>=3.6), version: 0.19 2025-05-30T13:03:34,323 Skipping link: No binaries permitted for kkf: https://files.pythonhosted.org/packages/0a/43/c553097a0f2a40af511fafe97680f827889295854bfc5b0633612faf5318/kkf-0.20-py3-none-any.whl (from https://pypi.org/simple/kkf/) (requires-python:>=3.6) 2025-05-30T13:03:34,323 Found link https://files.pythonhosted.org/packages/57/4f/d7353ea6ee53182bc7335317e9f43efb918ae701d6545f8f1ac4f860bb10/kkf-0.20.tar.gz (from https://pypi.org/simple/kkf/) (requires-python:>=3.6), version: 0.20 2025-05-30T13:03:34,324 Skipping link: No binaries permitted for kkf: https://files.pythonhosted.org/packages/a6/a9/74902cf7e01c465f80190cd2871f1595aa776df14e73edbf18cbefc667dd/kkf-0.21-py3-none-any.whl (from https://pypi.org/simple/kkf/) (requires-python:>=3.6) 2025-05-30T13:03:34,324 Found link https://files.pythonhosted.org/packages/93/ec/0d3ad236191c742b7cc7ab3536a9d23395c698c7feac19b5c4c30cdf88c1/kkf-0.21.tar.gz (from https://pypi.org/simple/kkf/) (requires-python:>=3.6), version: 0.21 2025-05-30T13:03:34,325 Skipping link: No binaries permitted for kkf: https://files.pythonhosted.org/packages/d1/a1/36e4ff404d05a4ec5a21ce45526ea2f0cc02231c35dc1b1db843d80c7859/kkf-0.22-py3-none-any.whl (from https://pypi.org/simple/kkf/) (requires-python:>=3.6) 2025-05-30T13:03:34,326 Found link https://files.pythonhosted.org/packages/b9/ee/1ae7d940bed9ad61c6310546b39522e977b441ab4357abafe2727085c4f5/kkf-0.22.tar.gz (from https://pypi.org/simple/kkf/) (requires-python:>=3.6), version: 0.22 2025-05-30T13:03:34,327 Skipping link: No binaries permitted for kkf: https://files.pythonhosted.org/packages/0f/62/477e5a0525ec47bba12586c5ccfd6a7ae91d6a5c001509d5d557547cb226/kkf-0.23-py3-none-any.whl (from https://pypi.org/simple/kkf/) (requires-python:>=3.6) 2025-05-30T13:03:34,327 Found link https://files.pythonhosted.org/packages/26/7b/6d715c0547f958f97e0fecc4b4d642d51b40e67a8f6d56319b835bb949ac/kkf-0.23.tar.gz (from https://pypi.org/simple/kkf/) (requires-python:>=3.6), version: 0.23 2025-05-30T13:03:34,328 Fetching project page and analyzing links: https://www.piwheels.org/simple/kkf/ 2025-05-30T13:03:34,329 Getting page https://www.piwheels.org/simple/kkf/ 2025-05-30T13:03:34,330 Found index url https://www.piwheels.org/simple/ 2025-05-30T13:03:34,497 WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate is not yet valid (_ssl.c:992)'))': /simple/kkf/ 2025-05-30T13:03:35,157 WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate is not yet valid (_ssl.c:992)'))': /simple/kkf/ 2025-05-30T13:03:36,326 WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate is not yet valid (_ssl.c:992)'))': /simple/kkf/ 2025-05-30T13:03:38,529 WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate is not yet valid (_ssl.c:992)'))': /simple/kkf/ 2025-05-30T13:03:42,704 WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate is not yet valid (_ssl.c:992)'))': /simple/kkf/ 2025-05-30T13:03:42,874 Could not fetch URL https://www.piwheels.org/simple/kkf/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='www.piwheels.org', port=443): Max retries exceeded with url: /simple/kkf/ (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate is not yet valid (_ssl.c:992)'))) - skipping 2025-05-30T13:03:42,876 Skipping link: not a file: https://www.piwheels.org/simple/kkf/ 2025-05-30T13:03:42,877 Skipping link: not a file: https://pypi.org/simple/kkf/ 2025-05-30T13:03:42,901 Given no hashes to check 1 links for project 'kkf': discarding no candidates 2025-05-30T13:03:42,903 Collecting kkf==0.19 2025-05-30T13:03:42,906 Created temporary directory: /tmp/pip-unpack-95itpej8 2025-05-30T13:03:43,131 Downloading kkf-0.19.tar.gz (12 kB) 2025-05-30T13:03:43,188 Added kkf==0.19 from https://files.pythonhosted.org/packages/c5/3a/1857f0219534b9c90e72a45931c9098e8dac7299004ce4a2c19ba11755a3/kkf-0.19.tar.gz to build tracker '/tmp/pip-build-tracker-6u9ekpwi' 2025-05-30T13:03:43,191 Running setup.py (path:/tmp/pip-wheel-kk665r3c/kkf_5cdf1f0b95854b139f90838ef1cbe9b4/setup.py) egg_info for package kkf 2025-05-30T13:03:43,192 Created temporary directory: /tmp/pip-pip-egg-info-lsbfltts 2025-05-30T13:03:43,192 Preparing metadata (setup.py): started 2025-05-30T13:03:43,194 Running command python setup.py egg_info 2025-05-30T13:03:44,071 /usr/local/lib/python3.11/dist-packages/setuptools/dist.py:759: SetuptoolsDeprecationWarning: License classifiers are deprecated. 2025-05-30T13:03:44,072 !! 2025-05-30T13:03:44,073 ******************************************************************************** 2025-05-30T13:03:44,073 Please consider removing the following classifiers in favor of a SPDX license expression: 2025-05-30T13:03:44,074 License :: OSI Approved :: MIT License 2025-05-30T13:03:44,075 See https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license for details. 2025-05-30T13:03:44,076 ******************************************************************************** 2025-05-30T13:03:44,077 !! 2025-05-30T13:03:44,078 self._finalize_license_expression() 2025-05-30T13:03:44,104 running egg_info 2025-05-30T13:03:44,132 creating /tmp/pip-pip-egg-info-lsbfltts/kkf.egg-info 2025-05-30T13:03:44,133 writing /tmp/pip-pip-egg-info-lsbfltts/kkf.egg-info/PKG-INFO 2025-05-30T13:03:44,138 writing dependency_links to /tmp/pip-pip-egg-info-lsbfltts/kkf.egg-info/dependency_links.txt 2025-05-30T13:03:44,140 writing requirements to /tmp/pip-pip-egg-info-lsbfltts/kkf.egg-info/requires.txt 2025-05-30T13:03:44,141 writing top-level names to /tmp/pip-pip-egg-info-lsbfltts/kkf.egg-info/top_level.txt 2025-05-30T13:03:44,142 writing manifest file '/tmp/pip-pip-egg-info-lsbfltts/kkf.egg-info/SOURCES.txt' 2025-05-30T13:03:44,235 reading manifest file '/tmp/pip-pip-egg-info-lsbfltts/kkf.egg-info/SOURCES.txt' 2025-05-30T13:03:44,237 adding license file 'LICENSE' 2025-05-30T13:03:44,240 writing manifest file '/tmp/pip-pip-egg-info-lsbfltts/kkf.egg-info/SOURCES.txt' 2025-05-30T13:03:44,346 Preparing metadata (setup.py): finished with status 'done' 2025-05-30T13:03:44,351 Source in /tmp/pip-wheel-kk665r3c/kkf_5cdf1f0b95854b139f90838ef1cbe9b4 has version 0.19, which satisfies requirement kkf==0.19 from https://files.pythonhosted.org/packages/c5/3a/1857f0219534b9c90e72a45931c9098e8dac7299004ce4a2c19ba11755a3/kkf-0.19.tar.gz 2025-05-30T13:03:44,352 Removed kkf==0.19 from https://files.pythonhosted.org/packages/c5/3a/1857f0219534b9c90e72a45931c9098e8dac7299004ce4a2c19ba11755a3/kkf-0.19.tar.gz from build tracker '/tmp/pip-build-tracker-6u9ekpwi' 2025-05-30T13:03:44,358 Created temporary directory: /tmp/pip-unpack-794_ogb8 2025-05-30T13:03:44,359 Created temporary directory: /tmp/pip-unpack-s6e0p_8m 2025-05-30T13:03:44,360 Building wheels for collected packages: kkf 2025-05-30T13:03:44,364 Created temporary directory: /tmp/pip-wheel-7bl_lf1c 2025-05-30T13:03:44,365 DEPRECATION: Building 'kkf' using the legacy setup.py bdist_wheel mechanism, which will be removed in a future version. pip 25.3 will enforce this behaviour change. A possible replacement is to use the standardized build interface by setting the `--use-pep517` option, (possibly combined with `--no-build-isolation`), or adding a `pyproject.toml` file to the source tree of 'kkf'. Discussion can be found at https://github.com/pypa/pip/issues/6334 2025-05-30T13:03:44,366 Building wheel for kkf (setup.py): started 2025-05-30T13:03:44,367 Destination directory: /tmp/pip-wheel-7bl_lf1c 2025-05-30T13:03:44,368 Running command python setup.py bdist_wheel 2025-05-30T13:03:45,207 /usr/local/lib/python3.11/dist-packages/setuptools/dist.py:759: SetuptoolsDeprecationWarning: License classifiers are deprecated. 2025-05-30T13:03:45,208 !! 2025-05-30T13:03:45,209 ******************************************************************************** 2025-05-30T13:03:45,209 Please consider removing the following classifiers in favor of a SPDX license expression: 2025-05-30T13:03:45,210 License :: OSI Approved :: MIT License 2025-05-30T13:03:45,211 See https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license for details. 2025-05-30T13:03:45,212 ******************************************************************************** 2025-05-30T13:03:45,213 !! 2025-05-30T13:03:45,214 self._finalize_license_expression() 2025-05-30T13:03:45,214 running bdist_wheel 2025-05-30T13:03:45,346 running build 2025-05-30T13:03:45,347 running build_py 2025-05-30T13:03:45,377 creating build/lib/kkf 2025-05-30T13:03:45,379 copying kkf/applyKKF.py -> build/lib/kkf 2025-05-30T13:03:45,382 copying kkf/covariances.py -> build/lib/kkf 2025-05-30T13:03:45,385 copying kkf/kEDMD.py -> build/lib/kkf 2025-05-30T13:03:45,387 copying kkf/__init__.py -> build/lib/kkf 2025-05-30T13:03:45,389 copying kkf/KKFsol.py -> build/lib/kkf 2025-05-30T13:03:45,391 copying kkf/DynamicalSystems.py -> build/lib/kkf 2025-05-30T13:03:45,394 copying kkf/utils.py -> build/lib/kkf 2025-05-30T13:03:45,429 /usr/local/lib/python3.11/dist-packages/setuptools/_distutils/cmd.py:90: SetuptoolsDeprecationWarning: setup.py install is deprecated. 2025-05-30T13:03:45,429 !! 2025-05-30T13:03:45,430 ******************************************************************************** 2025-05-30T13:03:45,431 Please avoid running ``setup.py`` directly. 2025-05-30T13:03:45,431 Instead, use pypa/build, pypa/installer or other 2025-05-30T13:03:45,432 standards-based tools. 2025-05-30T13:03:45,433 By 2025-Oct-31, you need to update your project and remove deprecated calls 2025-05-30T13:03:45,434 or your builds will no longer be supported. 2025-05-30T13:03:45,435 See https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html for details. 2025-05-30T13:03:45,436 ******************************************************************************** 2025-05-30T13:03:45,437 !! 2025-05-30T13:03:45,437 self.initialize_options() 2025-05-30T13:03:45,457 installing to build/bdist.linux-armv7l/wheel 2025-05-30T13:03:45,457 running install 2025-05-30T13:03:45,483 running install_lib 2025-05-30T13:03:45,510 creating build/bdist.linux-armv7l/wheel 2025-05-30T13:03:45,512 creating build/bdist.linux-armv7l/wheel/kkf 2025-05-30T13:03:45,513 copying build/lib/kkf/applyKKF.py -> build/bdist.linux-armv7l/wheel/./kkf 2025-05-30T13:03:45,515 copying build/lib/kkf/covariances.py -> build/bdist.linux-armv7l/wheel/./kkf 2025-05-30T13:03:45,517 copying build/lib/kkf/kEDMD.py -> build/bdist.linux-armv7l/wheel/./kkf 2025-05-30T13:03:45,520 copying build/lib/kkf/__init__.py -> build/bdist.linux-armv7l/wheel/./kkf 2025-05-30T13:03:45,521 copying build/lib/kkf/KKFsol.py -> build/bdist.linux-armv7l/wheel/./kkf 2025-05-30T13:03:45,523 copying build/lib/kkf/DynamicalSystems.py -> build/bdist.linux-armv7l/wheel/./kkf 2025-05-30T13:03:45,526 copying build/lib/kkf/utils.py -> build/bdist.linux-armv7l/wheel/./kkf 2025-05-30T13:03:45,527 running install_egg_info 2025-05-30T13:03:45,564 running egg_info 2025-05-30T13:03:45,591 writing kkf.egg-info/PKG-INFO 2025-05-30T13:03:45,594 writing dependency_links to kkf.egg-info/dependency_links.txt 2025-05-30T13:03:45,596 writing requirements to kkf.egg-info/requires.txt 2025-05-30T13:03:45,597 writing top-level names to kkf.egg-info/top_level.txt 2025-05-30T13:03:45,629 reading manifest file 'kkf.egg-info/SOURCES.txt' 2025-05-30T13:03:45,632 adding license file 'LICENSE' 2025-05-30T13:03:45,635 writing manifest file 'kkf.egg-info/SOURCES.txt' 2025-05-30T13:03:45,636 Copying kkf.egg-info to build/bdist.linux-armv7l/wheel/./kkf-0.19-py3.11.egg-info 2025-05-30T13:03:45,645 running install_scripts 2025-05-30T13:03:45,657 creating build/bdist.linux-armv7l/wheel/kkf-0.19.dist-info/WHEEL 2025-05-30T13:03:45,660 creating '/tmp/pip-wheel-7bl_lf1c/kkf-0.19-py3-none-any.whl' and adding 'build/bdist.linux-armv7l/wheel' to it 2025-05-30T13:03:45,663 adding 'kkf/DynamicalSystems.py' 2025-05-30T13:03:45,665 adding 'kkf/KKFsol.py' 2025-05-30T13:03:45,666 adding 'kkf/__init__.py' 2025-05-30T13:03:45,669 adding 'kkf/applyKKF.py' 2025-05-30T13:03:45,671 adding 'kkf/covariances.py' 2025-05-30T13:03:45,673 adding 'kkf/kEDMD.py' 2025-05-30T13:03:45,674 adding 'kkf/utils.py' 2025-05-30T13:03:45,677 adding 'kkf-0.19.dist-info/licenses/LICENSE' 2025-05-30T13:03:45,679 adding 'kkf-0.19.dist-info/METADATA' 2025-05-30T13:03:45,680 adding 'kkf-0.19.dist-info/WHEEL' 2025-05-30T13:03:45,681 adding 'kkf-0.19.dist-info/top_level.txt' 2025-05-30T13:03:45,682 adding 'kkf-0.19.dist-info/RECORD' 2025-05-30T13:03:45,684 removing build/bdist.linux-armv7l/wheel 2025-05-30T13:03:45,798 Building wheel for kkf (setup.py): finished with status 'done' 2025-05-30T13:03:45,801 Created wheel for kkf: filename=kkf-0.19-py3-none-any.whl size=13100 sha256=5e2038c2f80f56d8459d0b94f60e05b8fb6527c225b8cf2aba0f10bfe388d9d7 2025-05-30T13:03:45,802 Stored in directory: /tmp/pip-ephem-wheel-cache-rl8msk54/wheels/1a/ec/36/8d1f392ece9ac5a43149ee693439f498439ddf1e0939cd2de8 2025-05-30T13:03:45,813 Successfully built kkf 2025-05-30T13:03:45,816 Removed build tracker: '/tmp/pip-build-tracker-6u9ekpwi'