2021-12-07T12:27:08,536 Created temporary directory: /tmp/pip-ephem-wheel-cache-7yojbpuu
2021-12-07T12:27:08,541 Created temporary directory: /tmp/pip-req-tracker-mu7c5s6j
2021-12-07T12:27:08,542 Initialized build tracking at /tmp/pip-req-tracker-mu7c5s6j
2021-12-07T12:27:08,542 Created build tracker: /tmp/pip-req-tracker-mu7c5s6j
2021-12-07T12:27:08,542 Entered build tracker: /tmp/pip-req-tracker-mu7c5s6j
2021-12-07T12:27:08,543 Created temporary directory: /tmp/pip-wheel-h9v866dx
2021-12-07T12:27:08,605 Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
2021-12-07T12:27:08,610 2 location(s) to search for versions of scipp:
2021-12-07T12:27:08,610 * https://pypi.org/simple/scipp/
2021-12-07T12:27:08,610 * https://www.piwheels.org/simple/scipp/
2021-12-07T12:27:08,611 Fetching project page and analyzing links: https://pypi.org/simple/scipp/
2021-12-07T12:27:08,612 Getting page https://pypi.org/simple/scipp/
2021-12-07T12:27:08,616 Found index url https://pypi.org/simple
2021-12-07T12:27:08,857   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/06/d2/98b246380293a7e00d3df799e6cedc13f4f1e7603f93e6dde07b2abca3aa/scipp-0.0.1-py3-none-any.whl#sha256=bf7f3e0090d77676d6da6fbc727da95fb1829c36a5a15bf630d0d47f7db58738 (from https://pypi.org/simple/scipp/)
2021-12-07T12:27:08,858   Found link https://files.pythonhosted.org/packages/4a/68/fad84f7992672caa5e2c92de0289c606cdfd6e5070877768b7deb8b1a41a/scipp-0.0.1.tar.gz#sha256=2721339fe186f332033f3537bacb0afcc9b08639a96d2912e23bae0e8bbea841 (from https://pypi.org/simple/scipp/), version: 0.0.1
2021-12-07T12:27:08,858   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/f8/05/e88b57e26875f0e403b32ecb62179e02487d1ecc2b2f52fb06df5e77fdaf/scipp-0.10.0rc1-cp38-cp38-macosx_10_9_x86_64.whl#sha256=05bdaee92ec56472cbb4f2356ca2554c809094101fa96e42939a4bd79f67214d (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,859   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/b0/09/bfd768afea1bd1deb93f2a2dd6c9451fad5e49688216223a1f37782daffc/scipp-0.10.0rc1-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl#sha256=744f7a1776ecfef3782c7e2e7e142623ad95ddf1daec0eba27baeae64c2f6968 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,859   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/dc/e5/928dec1f3a3085c6fa9aa0833a61339d318e07abb1f29a2b3c1750c4e5d2/scipp-0.10.0rc1-cp39-cp39-win_amd64.whl#sha256=fb46d5030f242bc161c0513397dcb3bca0dcefe5a796b1e1ae359d94bcbe6311 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,860   Found link https://files.pythonhosted.org/packages/3b/4c/6b3c47281a9e3ca38ede821ca3c59a023950a67b10d4ac4a49ac97cad001/scipp-0.10.0rc1.tar.gz#sha256=bc180fae4afdd79a1ef1bf80f231e9719c3ff42215f752552eb35fe66c130b52 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7), version: 0.10.0rc1
2021-12-07T12:27:08,861   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/7b/7a/b11680be29a94a5d73163f30629efa7a69d15ee39198c7190b7ea3e78f6f/scipp-0.10.0rc2-cp38-cp38-macosx_10_9_x86_64.whl#sha256=a046e76e4d6058d98500e7416019d4ad638163cce13ffa799cf4f5991f42096c (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,862   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/76/2c/3ac5556e220f460a35a690648591e4d0b20f1acc59c1e838e392e6ac83a8/scipp-0.10.0rc2-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl#sha256=b8022585da70c271ba0c304386a52539a0340f1ad4c59a3cccfd2d7196fc7726 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,862   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/4c/c5/744fff872c12c4e2b3d8776026fdfb2273394f8bb88b8442c019840e7321/scipp-0.10.0rc2-cp39-cp39-win_amd64.whl#sha256=9d41eebcdadd824ee435463b27a0456ba3b3338d5a572b17e41754737d6a456f (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,863   Found link https://files.pythonhosted.org/packages/41/c3/8ba95c32b936bdde1f4c5ea3b44b089c1e54028c1d250a99db2463e81762/scipp-0.10.0rc2.tar.gz#sha256=8a2614dc6f18a3b7ad6edefae14b4a551126296cb7e65949ecc0603332261a93 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7), version: 0.10.0rc2
2021-12-07T12:27:08,864   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/09/4d/c2eb01cde98318b02a0a760adac7b663d6ff2674923d6f3c47faa3b87bc8/scipp-0.10.0rc3-cp310-cp310-macosx_10_9_x86_64.whl#sha256=457e200302c3b4bd3f547011324619528c0a510e3a2d84fd8fe39275bd18e076 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,864   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/53/ed/171bd92a888fdd6b711653b9534f27d16c86e9533e850bd75fee0956e82a/scipp-0.10.0rc3-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl#sha256=d6ae6a84ec6815b09577075ab5f3bf66171592c7cc49135c9c0f9dbf64b60275 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,865   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/cc/67/61e2ce73ab8cd66a96cf29433415dfa79587ebb3b726c5e4a35629a740f9/scipp-0.10.0rc3-cp310-cp310-win_amd64.whl#sha256=1be347662270af6b1e500e303ed88e960f06fb95563156ef089f38f6d1a46c9b (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,865   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/a3/d9/0e821d4c74d30a76acb90081bb1af3340f996f7e62f31c82422be456706a/scipp-0.10.0rc3-cp37-cp37m-macosx_10_15_x86_64.whl#sha256=f920bc3f80a6253610b9cacaf4119514450c42a5448d16bf7a83acc9fa5c9662 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,866   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/27/1c/78b8ac6de8350b32db44bd29d2b7d12c3b6263a1e52db4e57103e472f302/scipp-0.10.0rc3-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl#sha256=d71f83cdad4111c1d97c938b0e0d88b931804b0c71ab988b9fa9965958f9ef48 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,866   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/33/f3/6b392b3b68d4581fd8779133d00b8eeea154e75249b3462746a753b01d70/scipp-0.10.0rc3-cp37-cp37m-win_amd64.whl#sha256=51e9620d8a87a4ad99e4a4ade5ca5a98b7cde15413d03f01e4ddf91a7cc136f8 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,867   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/a4/80/fb3876184e390ed96c5c556ac534f6242b216c52e68a3445b0837b8d9351/scipp-0.10.0rc3-cp38-cp38-macosx_10_9_x86_64.whl#sha256=ed48632437d8bf1af59b429fdb380308fdf92c97021636940b2ab8b72e0c364b (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,867   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/4d/de/56615bd1ca28407bab7dec15ee7acabc6ab4dc441505786b73929d381e4b/scipp-0.10.0rc3-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl#sha256=10c3cb50b8526c30706f04ac20e9e37d667584955f2712c7aecf3daeb6c57430 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,868   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/44/be/46587811c2793d95aca95c28d2eb49c6a2e9af6e47cf0f2ccdd29789fa57/scipp-0.10.0rc3-cp38-cp38-win_amd64.whl#sha256=8c7a3e480c71283a8f7dc0f05a0cffd39206eb1c47bf77d1fd0704bc09090aa0 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,868   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/e8/0e/348419d549c1ee3b7621910170d3a822eff7f2106aacfecfa018391dfa88/scipp-0.10.0rc3-cp39-cp39-macosx_10_9_x86_64.whl#sha256=0e12771e7092e6ed065ebb0d846487cec05f8baba4860fe18c6d6d2d0cdb1877 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,868   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/8a/47/649cb2c9fb5118dc25b6125b2914a2a858527833019d1213860ae4b8026c/scipp-0.10.0rc3-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl#sha256=5f1170826c3d0b0256c3bc3c9c63f472e98f3c479f8a4c8c8a5f0d84514cfb9d (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,869   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/f6/03/bca6b553387a86dffb6a995b74c5ff9e9f672bfe320bd726231b4b5cd40f/scipp-0.10.0rc3-cp39-cp39-win_amd64.whl#sha256=83fe112ef03e410b0463d054dbb0e85f2a6840900ac755589021a1277e2debab (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,870   Found link https://files.pythonhosted.org/packages/21/47/6c9d41bd776d64c43b5d18be01a57848403d644c6dee0a5d6e0cf5e69b2a/scipp-0.10.0rc3.tar.gz#sha256=9a0c032f6b1b11e06df1788cb5260fd714f7bfed3e5f9305b2d260284533a916 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7), version: 0.10.0rc3
2021-12-07T12:27:08,871   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/0f/84/f426f39f5368eface1e9b4be96e4c2c5d87bb8cf2d05cc8d48551676ee9c/scipp-0.10.0rc4-cp310-cp310-macosx_10_9_x86_64.whl#sha256=a5da716663ded71dfe82608b1eb401dc3ccb74329d7ff146395089e6147b0d4e (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,871   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/74/c6/e0b444b7764f83c25cc41cadcfbf7b678afc48cd95028346e194f686231a/scipp-0.10.0rc4-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl#sha256=3f79dbea4df7b3f50e25581482a0fe087c6d540a15b642303f3c5a6eb9150efc (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,872   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/96/a7/15a4b912803e1c378ed627205fb3ab4a53fc64048b805e76158d7c35751a/scipp-0.10.0rc4-cp310-cp310-win_amd64.whl#sha256=2e4fd66f1bd865f75a74a4f0ac2196fc119c2c8cb21a9c68ad3edcb050232e69 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,872   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/b0/91/abee0304d5102979f72bf7897900a2dc4531bc4ef75a00bf9f27b6a30cd1/scipp-0.10.0rc4-cp37-cp37m-macosx_10_15_x86_64.whl#sha256=6b7c9ac7b05978f23bd09fbedb7151535ba8efa0c13cc8a13eec1765bf5721e3 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,872   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/cf/86/b00e77735f2f3c115d7f06b8ee0c97fc57979d16fa1ad111232909da1894/scipp-0.10.0rc4-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl#sha256=788053b73c5bbbf4b795d4168d12a499a7a844a9d20360b5421f007562ef8c3e (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,873   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/da/f1/9d539a02d905f870b50d13939c1bdc36661b58ad7f0564c6ef8f748e6fbb/scipp-0.10.0rc4-cp37-cp37m-win_amd64.whl#sha256=469a219efba1ee41926c9e628d5709b6689888a4e047525ef0eef0c68a09f3f2 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,873   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/5b/ad/aaac7bd2272a6a27f89ac2582f81dc413d96249432988d33e0756380924d/scipp-0.10.0rc4-cp38-cp38-macosx_10_9_x86_64.whl#sha256=f61ca02a74514802df24e73e9bac7cb3c8be8c366f47d7d82fe550e24098d5ed (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,874   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/1d/98/933dbbd90cd4b9e99ffaecfd233507db4630250ac3e85c6c700637310fb8/scipp-0.10.0rc4-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl#sha256=bed4eb27ac33022a39bc16e20fe0a9266a3f810a2cb7b126705b30571c4c3da4 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,874   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/cb/bb/190b379329d8d76a3193f3227bd31fe65a013ee18676c520c2546dc4a47f/scipp-0.10.0rc4-cp38-cp38-win_amd64.whl#sha256=9bb6783d9efaf74d9c19d737b2d500bedae673462839d42f74eda62910fdec24 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,875   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/5d/29/ada110d87b5ce269fd329f87cf30b341d5f90593631a307a679a090c3c51/scipp-0.10.0rc4-cp39-cp39-macosx_10_9_x86_64.whl#sha256=5a5688bd5ce747d9cec37b24367989b570d3aa44214a29918656def36848619c (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,875   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/87/2b/9a57650428e75a3d0a4f96a3dbd32bb8e154b83b54b02507315300fdb8e3/scipp-0.10.0rc4-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl#sha256=50fa18888bf224cd9a78056466d3a0be152a05dcd86103c73b528f306a4e08dc (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,876   Skipping link: No binaries permitted for scipp: https://files.pythonhosted.org/packages/f1/57/7914263ac20744821f35c1a1ded928abe33e690a26283d2d2b1e8eb5da72/scipp-0.10.0rc4-cp39-cp39-win_amd64.whl#sha256=bb8321fca22052726330422f105315682c11070a48a4c059f4e54db96125c120 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7)
2021-12-07T12:27:08,877   Found link https://files.pythonhosted.org/packages/fc/4e/0268bcb48f952aed54f2521e8c5dd3c7eaf39344f5bc8b62a50e8cf50982/scipp-0.10.0rc4.tar.gz#sha256=c242777b5554a073437cce356b2110d8bfa4dc9049aed1a5cad6a2723a8df636 (from https://pypi.org/simple/scipp/) (requires-python:>=3.7), version: 0.10.0rc4
2021-12-07T12:27:08,878 Fetching project page and analyzing links: https://www.piwheels.org/simple/scipp/
2021-12-07T12:27:08,878 Getting page https://www.piwheels.org/simple/scipp/
2021-12-07T12:27:08,880 Found index url https://www.piwheels.org/simple
2021-12-07T12:27:09,095   Skipping link: No binaries permitted for scipp: https://www.piwheels.org/simple/scipp/scipp-0.0.1-py3-none-any.whl#sha256=bf7f3e0090d77676d6da6fbc727da95fb1829c36a5a15bf630d0d47f7db58738 (from https://www.piwheels.org/simple/scipp/)
2021-12-07T12:27:09,096 Skipping link: not a file: https://www.piwheels.org/simple/scipp/
2021-12-07T12:27:09,096 Skipping link: not a file: https://pypi.org/simple/scipp/
2021-12-07T12:27:09,134 Given no hashes to check 1 links for project 'scipp': discarding no candidates
2021-12-07T12:27:09,174 Collecting scipp==0.10.0rc4
2021-12-07T12:27:09,177   Created temporary directory: /tmp/pip-unpack-4cmg2pu6
2021-12-07T12:27:09,261   Downloading scipp-0.10.0rc4.tar.gz (107 kB)
2021-12-07T12:27:09,690   Added scipp==0.10.0rc4 from https://files.pythonhosted.org/packages/fc/4e/0268bcb48f952aed54f2521e8c5dd3c7eaf39344f5bc8b62a50e8cf50982/scipp-0.10.0rc4.tar.gz#sha256=c242777b5554a073437cce356b2110d8bfa4dc9049aed1a5cad6a2723a8df636 to build tracker '/tmp/pip-req-tracker-mu7c5s6j'
2021-12-07T12:27:09,691 ERROR: scipp==0.10.0rc4 from https://files.pythonhosted.org/packages/fc/4e/0268bcb48f952aed54f2521e8c5dd3c7eaf39344f5bc8b62a50e8cf50982/scipp-0.10.0rc4.tar.gz#sha256=c242777b5554a073437cce356b2110d8bfa4dc9049aed1a5cad6a2723a8df636 does not appear to be a Python project: neither 'setup.py' nor 'pyproject.toml' found.
2021-12-07T12:27:09,692 Exception information:
2021-12-07T12:27:09,692 Traceback (most recent call last):
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/cli/base_command.py", line 164, in exc_logging_wrapper
2021-12-07T12:27:09,692     status = run_func(*args)
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/cli/req_command.py", line 205, in wrapper
2021-12-07T12:27:09,692     return func(self, options, args)
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/commands/wheel.py", line 144, in run
2021-12-07T12:27:09,692     requirement_set = resolver.resolve(reqs, check_supported_wheels=True)
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/resolver.py", line 92, in resolve
2021-12-07T12:27:09,692     result = self._result = resolver.resolve(
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 482, in resolve
2021-12-07T12:27:09,692     state = resolution.resolve(requirements, max_rounds=max_rounds)
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 349, in resolve
2021-12-07T12:27:09,692     self._add_to_criteria(self.state.criteria, r, parent=None)
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 173, in _add_to_criteria
2021-12-07T12:27:09,692     if not criterion.candidates:
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_vendor/resolvelib/structs.py", line 151, in __bool__
2021-12-07T12:27:09,692     return bool(self._sequence)
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 155, in __bool__
2021-12-07T12:27:09,692     return any(self)
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 143, in <genexpr>
2021-12-07T12:27:09,692     return (c for c in iterator if id(c) not in self._incompatible_ids)
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 47, in _iter_built
2021-12-07T12:27:09,692     candidate = func()
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/factory.py", line 201, in _make_candidate_from_link
2021-12-07T12:27:09,692     self._link_candidate_cache[link] = LinkCandidate(
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 281, in __init__
2021-12-07T12:27:09,692     super().__init__(
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 156, in __init__
2021-12-07T12:27:09,692     self.dist = self._prepare()
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 225, in _prepare
2021-12-07T12:27:09,692     dist = self._prepare_distribution()
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 292, in _prepare_distribution
2021-12-07T12:27:09,692     return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True)
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/operations/prepare.py", line 482, in prepare_linked_requirement
2021-12-07T12:27:09,692     return self._prepare_linked_requirement(req, parallel_builds)
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/operations/prepare.py", line 546, in _prepare_linked_requirement
2021-12-07T12:27:09,692     dist = _get_prepared_distribution(
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/operations/prepare.py", line 58, in _get_prepared_distribution
2021-12-07T12:27:09,692     abstract_dist.prepare_distribution_metadata(finder, build_isolation)
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/distributions/sdist.py", line 30, in prepare_distribution_metadata
2021-12-07T12:27:09,692     self.req.load_pyproject_toml()
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/req/req_install.py", line 497, in load_pyproject_toml
2021-12-07T12:27:09,692     pyproject_toml_data = load_pyproject_toml(
2021-12-07T12:27:09,692   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/pyproject.py", line 52, in load_pyproject_toml
2021-12-07T12:27:09,692     raise InstallationError(
2021-12-07T12:27:09,692 pip._internal.exceptions.InstallationError: scipp==0.10.0rc4 from https://files.pythonhosted.org/packages/fc/4e/0268bcb48f952aed54f2521e8c5dd3c7eaf39344f5bc8b62a50e8cf50982/scipp-0.10.0rc4.tar.gz#sha256=c242777b5554a073437cce356b2110d8bfa4dc9049aed1a5cad6a2723a8df636 does not appear to be a Python project: neither 'setup.py' nor 'pyproject.toml' found.
2021-12-07T12:27:09,710 Removed scipp==0.10.0rc4 from https://files.pythonhosted.org/packages/fc/4e/0268bcb48f952aed54f2521e8c5dd3c7eaf39344f5bc8b62a50e8cf50982/scipp-0.10.0rc4.tar.gz#sha256=c242777b5554a073437cce356b2110d8bfa4dc9049aed1a5cad6a2723a8df636 from build tracker '/tmp/pip-req-tracker-mu7c5s6j'
2021-12-07T12:27:09,711 Removed build tracker: '/tmp/pip-req-tracker-mu7c5s6j'