2019-10-25T15:43:46 Created temporary directory: /tmp/pip-ephem-wheel-cache-rh5gkcso
2019-10-25T15:43:46 Created temporary directory: /tmp/pip-req-tracker-1nq8y663
2019-10-25T15:43:46 Created requirements tracker '/tmp/pip-req-tracker-1nq8y663'
2019-10-25T15:43:46 Created temporary directory: /tmp/pip-wheel-mwjucych
2019-10-25T15:43:46 Collecting xfoil==1.1.1
2019-10-25T15:43:46   1 location(s) to search for versions of xfoil:
2019-10-25T15:43:46   * https://pypi.org/simple/xfoil/
2019-10-25T15:43:46   Getting page https://pypi.org/simple/xfoil/
2019-10-25T15:43:46   Analyzing links from page https://pypi.org/simple/xfoil/
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/fe/6e/bc55c95ce7c1d70bdf2235efba96ea4c8c0a656401e72f1342c2eecc5a94/xfoil-0.0.1-cp36-cp36m-win_amd64.whl#sha256=8e393418e92a542282f06a2d10c2c53d0d4d436b9a931a799b95c0981af4c6f6 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/9a/e1/8cd8d84b7f4fea8647430f92a222be6514172580c190965e2f1e45383e59/xfoil-0.0.1.tar.gz#sha256=3e3b62e3c7bbc7ec8c8d84ed23452c5c3712d576aaaa79ace4cca2ada5d4eceb (from https://pypi.org/simple/xfoil/), version: 0.0.1
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/48/05/71755f60a8320ee3d86214e97a5ea89dfb473f25ba73bfa9a19672e42a7e/xfoil-0.0.2-cp36-cp36m-win_amd64.whl#sha256=57b38060e40757c23493a5fccf190855fd58414a0a6ad087e2986f560be962d6 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/a0/c3/ff81916a5ddb1556726422bf250f7d5dab0b2a0153fccd61a23a7f83a5a7/xfoil-0.0.2.tar.gz#sha256=e4aff39aea4a522c69ae2e1dd48d3c6a2aac6859e68dd684ebdef49c5905dcbd (from https://pypi.org/simple/xfoil/), version: 0.0.2
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/f8/0d/3fe0432284c295c1435c563260286b611714070c6ad245591be8af8573ec/xfoil-0.0.3-cp36-cp36m-win_amd64.whl#sha256=113b7740d48ff8948349f0482b2d995a6a151066adab45025d9e581841bdd0dd (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/71/dc/f3a706a82b2f9eda961bd1366f81421be2a17c07065545f6b2243fcd42f0/xfoil-0.0.3.tar.gz#sha256=3dbf34b01acd3881e0fc215c36d2f9fb366c915b7ec848871336ddc195f393b7 (from https://pypi.org/simple/xfoil/), version: 0.0.3
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/e3/cc/50f3752dfa19f53b97b3294d88b2eadc07f25ed6fcd67f3983036fd1147a/xfoil-0.0.4-cp36-cp36m-win_amd64.whl#sha256=867332ab7cbdc3de1ca294ccd67999d2450227cc1529a6aaa69b86cfe33e8633 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/89/f0/e2da674bf0a423244701f894c7da90e7f253988807b2eaedf065f3b5b992/xfoil-0.0.4.tar.gz#sha256=ef0faa22e5ddd25bd594541854c635630f4678413b0c27475a9415faa2909521 (from https://pypi.org/simple/xfoil/), version: 0.0.4
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/a4/71/21eecf408944b8e04d30b2f69e320dbb445b90b06287072fdab1da047f79/xfoil-0.0.5-cp36-cp36m-win_amd64.whl#sha256=3d09fe5d2627b00d06f22c20f0c4a1da8c6eabc484fc14a50efaa1f36d3888b4 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/29/d6/b54bd50975da9f9305c9f623fd5551fdf003b55432489a3f7e378e4ecc38/xfoil-0.0.5.tar.gz#sha256=dd30fa4a965af056a1b7e2b504cc4765e023cd748552e269561bff65b484baa5 (from https://pypi.org/simple/xfoil/), version: 0.0.5
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/72/4f/ed09a3e5e2931d78434c68bc56e2282a760c2ce53d1915969150771275d3/xfoil-0.0.8-cp36-cp36m-macosx_10_7_x86_64.whl#sha256=093ff2455058dba43a398093e9fdbba4109470995191601cefecdc273135b17f (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/00/7b/e53086e84d8bbaebc9effc9fad48433ecaa91ea084882d1ae7aee565b52f/xfoil-0.0.8.tar.gz#sha256=26de8be3d76beaa9df83bd4b596d2a5b254a672b9b6f81ef644d5281c5b3d6ed (from https://pypi.org/simple/xfoil/), version: 0.0.8
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/85/2b/7c554cbd37aa2fe6e1c200296b3711333810888616052c94cdd621127b8c/xfoil-0.0.9-cp36-cp36m-macosx_10_7_x86_64.whl#sha256=6086d8e1947a10d07957446485af96dab8b982e73a8dcb23fca40c56949c7501 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/b5/a3/e3df36242406238389f7a6fb81d3e8adfde60781e9b2c487a8dc5c816c45/xfoil-0.0.9-cp36-cp36m-win_amd64.whl#sha256=a4bfb7cd995a83fdebe57f8d15762c7a228f0e4feba7e9cffd95d3386051205f (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/19/b7/737b178a0be8db4cc3ce9da49b5b16ee545a2b27d07d980150317bab839e/xfoil-0.0.9.tar.gz#sha256=9d655f60ccc91cfd78a22889c8afac01eea11f6926c5b8fbeafb8e57504a1080 (from https://pypi.org/simple/xfoil/), version: 0.0.9
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/46/00/d07e0c3d4ec72f8e424d5691b20a35d081ac1228f23351b0be57fa38f81c/xfoil-0.0.10-cp36-cp36m-win_amd64.whl#sha256=d263393fc08d65751d627cb88c8b1561493446fdbd2c0cff000033457655824d (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/1d/bc/4901c0a1445fbe7428d103037493914f4054b232641e2e1785e2ac1d3bc0/xfoil-0.0.10.tar.gz#sha256=023ef5a45363be362d23925a1838ece20c918c723eb143c798767de6c2fd8a34 (from https://pypi.org/simple/xfoil/), version: 0.0.10
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/0d/76/a2061ee3080e79c4688b7739592c6eb3fb64012c7890f94c8c85a2167f5b/xfoil-0.0.11-cp36-cp36m-win_amd64.whl#sha256=34c35fb4f3552fe4c15591606deb7afca7ed108d7fdbd728f15f725b218b95a8 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/03/55/8cf1d69e7790e753758d6db60208f2852a430a56da32e8f48ffd79fd62da/xfoil-0.0.11.tar.gz#sha256=d54ea9b2102561097ccdc57ea231cfe09dac2e222d48cb4558407433fa838c6a (from https://pypi.org/simple/xfoil/), version: 0.0.11
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/2a/5b/3efa72290b8b2006402c71d0eaadc53c7d065a279e6d4c15bb9e1ae44533/xfoil-0.0.12-cp36-cp36m-macosx_10_7_x86_64.whl#sha256=76aea44a5ef043fae94cc49f0d70c3b8a9df8b02ba94fe21333432d08da195ed (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/ac/58/d5d271442cccb3f11569dac88b71217745fa7f5b3774a9dbf2a361c3bb97/xfoil-0.0.12-cp36-cp36m-win_amd64.whl#sha256=3fa32b34e4bf2800d6a35aa9c3b1c91b54623b33c4970c60ad15f18b6e669843 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/29/88/713c2d164924181de18cf4181c4efd20d2a8faf654a4df0c66353e3c3ff4/xfoil-0.0.12-py3.6-macosx-10.7-x86_64.egg#sha256=1488386368eb9bfba43bdbfdb935104ba9b5d13980aa06463939fee049178acc (from https://pypi.org/simple/xfoil/); unsupported archive format: .egg
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/3a/66/36128c8095e4d46bdd908a25460e60d6cabc744cd1cd20c63d90e957ae92/xfoil-0.0.12.tar.gz#sha256=e61b32f8a45a9e6998434cc5bff9f7a28e34cfa0464130d3df2df1a894b39449 (from https://pypi.org/simple/xfoil/), version: 0.0.12
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/8e/90/d7482d418bc35f56e5e02ad8512130bcd66cde83ed84f3bd158b329a175f/xfoil-0.0.13-cp36-cp36m-win_amd64.whl#sha256=8bb489982c796622dcb627745c0518a77c36ca183f7a0a928bf2d4ed6def6ad8 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/36/d1/23e15398f6da510b7def97ba89310aa1f060aa6b7a30bc47aab07b717c8f/xfoil-0.0.13.tar.gz#sha256=842cab809fe7318a8fe0aafbebfce70e560a1ed27aac8102aa478508cadf8b9e (from https://pypi.org/simple/xfoil/), version: 0.0.13
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/64/29/d2bde2ec926cb682b48319840188a6038542521adaa6b3c402d220293979/xfoil-0.0.14-cp36-cp36m-win_amd64.whl#sha256=9a36e9392eb4deaaaee3f9998a9cbd54bcf8b9f85d59986603e1d830d52737a6 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/db/06/bb683c986638ffb8353a4c13ad5474b2bf6c97804940ccb31d964c789f3c/xfoil-0.0.14.tar.gz#sha256=3f20f49a1d6f74d09e4308aba6dc45e872230f57a536a850e05414652e1fa98b (from https://pypi.org/simple/xfoil/), version: 0.0.14
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/ad/d5/66cf7e2fb70f130db51a67ce0e8e34cb68be1b926e1acbeea0bbc7b1bb49/xfoil-0.0.15-cp36-cp36m-win_amd64.whl#sha256=662a12bddb15c129551ce70b16713f756b97b3d4a94ca5a07bbd5296efb15ee5 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/37/35/c6ff7a88562a9b345f6bb3dbacda3a2fff5468134e23c20cf8af551eef91/xfoil-0.0.15.tar.gz#sha256=3b519e569f7e4667fd371e67bd2082a4eb3798d3ea85d4e7a75cb911ff9b64c8 (from https://pypi.org/simple/xfoil/), version: 0.0.15
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/cb/65/9728b77d6974f024c3f593210c2b7c96a5c2e337a3ecd8bb029313d473fe/xfoil-0.0.16-cp36-cp36m-win_amd64.whl#sha256=83aef9255437ae8ec34f403c4f789ff262b24cfdd9f30460bf10fb6c2c5a8485 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/f0/35/1f5f65d0aa688e1e94ffdece35c116761ae3ad83efbb030428a31b136176/xfoil-0.0.16.tar.gz#sha256=161f11c0f256f1c11d2bcc436d808f5ca71fe23b419f004b95c1021af9db1e3f (from https://pypi.org/simple/xfoil/), version: 0.0.16
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/f2/ef/ecff1763161fd979aef604263cc9fe5b6a411eeb74355c37b974d7f418a5/xfoil-1.0.0-cp37-cp37m-win_amd64.whl#sha256=0247e2b9eed51e123180d4b1865d84021d864a872f07a2de9fd1fb70bd01cf1d (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/ef/3e/44e1cf336adb9fc5364ec4c0c06dc6170365c604450c138bb9d06367551e/xfoil-1.0.0.tar.gz#sha256=9521199c5ba6bd9bdc21e43232b7002bda2e50b77c2abf23ce4c6b150b0f319d (from https://pypi.org/simple/xfoil/), version: 1.0.0
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/15/74/09176ef9310c4e603b8d64ac3c424c5187e8e2fbef22c7d3ecdea414c17e/xfoil-1.0.3-cp37-cp37m-macosx_10_7_x86_64.whl#sha256=ad6404ef41d9bf6847c269372fce254b3d3be93a199fe85695e00c06fa0a76f4 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/f5/fb/15175a93e3f4a75e053c7a67f7694d48e40eb5ff68e59f2c7df01c09adc5/xfoil-1.0.3-cp37-cp37m-win_amd64.whl#sha256=18b43cdf148efaf7a5cbf9220eb0a98be87bbf7b767af17a49c0108886fcf44e (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/22/c5/4d50605fca92d0451d90a7db991aa6656ed998d84bff7c372be3b2081dc9/xfoil-1.0.3.tar.gz#sha256=2fc9b987e53a3ed09793b2317716ebacf5a4053a17153578b9cf0d5a2abe5b62 (from https://pypi.org/simple/xfoil/), version: 1.0.3
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/ae/bb/ac5ed744e3ca0027f5d2ba431a6644b0d62c166ced69107f5e3c9ce450dd/xfoil-1.1.0-cp37-cp37m-macosx_10_7_x86_64.whl#sha256=f3f394c7898175941a324ccc788de1af56de9f1d9d53737910f7409c0a3511ac (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/22/8c/3de6381ad32c86a5d6e10205ce32f7752723ffd6e1e5d23338cd31ebbb8a/xfoil-1.1.0-cp37-cp37m-win_amd64.whl#sha256=d03aa828c0eba07c7c39b1488b25e590fef5efaa3c7b701efc35901952508623 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/a1/f7/8ee3d6ec20bc83b71f2ed3dd19d6cb83c457008126f34b0e8aa4d13b765a/xfoil-1.1.0.tar.gz#sha256=3df85524519070d1294c161246082cd4c67ff6b5d715b983f71dff2adff89c3b (from https://pypi.org/simple/xfoil/), version: 1.1.0
2019-10-25T15:43:46     Skipping link https://files.pythonhosted.org/packages/b0/58/2b86550d347c69f0a1f395c34c8925903abf8ecb6a7caa78ce101abe0ab2/xfoil-1.1.1-cp37-cp37m-win_amd64.whl#sha256=fa5f3065677316aef8a8d68bf466183d5cbe1f7fed1c25ae9c45522de81b9312 (from https://pypi.org/simple/xfoil/); it is not compatible with this Python
2019-10-25T15:43:46     Found link https://files.pythonhosted.org/packages/04/60/2dd764444b07772e3be5f9b109c5e554da09262ff73795c5b55e5cae62f9/xfoil-1.1.1.tar.gz#sha256=0601a125fff8eae68882451485297de04573b83bd08326a6f925d8ec5389b6d7 (from https://pypi.org/simple/xfoil/), version: 1.1.1
2019-10-25T15:43:46   Using version 1.1.1 (newest of versions: 1.1.1)
2019-10-25T15:43:46   Created temporary directory: /tmp/pip-unpack-dnbl2nnp
2019-10-25T15:43:46   Downloading https://files.pythonhosted.org/packages/04/60/2dd764444b07772e3be5f9b109c5e554da09262ff73795c5b55e5cae62f9/xfoil-1.1.1.tar.gz
2019-10-25T15:43:46   Downloading from URL https://files.pythonhosted.org/packages/04/60/2dd764444b07772e3be5f9b109c5e554da09262ff73795c5b55e5cae62f9/xfoil-1.1.1.tar.gz#sha256=0601a125fff8eae68882451485297de04573b83bd08326a6f925d8ec5389b6d7 (from https://pypi.org/simple/xfoil/)
2019-10-25T15:43:46   Added xfoil==1.1.1 from https://files.pythonhosted.org/packages/04/60/2dd764444b07772e3be5f9b109c5e554da09262ff73795c5b55e5cae62f9/xfoil-1.1.1.tar.gz#sha256=0601a125fff8eae68882451485297de04573b83bd08326a6f925d8ec5389b6d7 to build tracker '/tmp/pip-req-tracker-1nq8y663'
2019-10-25T15:43:46     Running setup.py (path:/tmp/pip-wheel-mwjucych/xfoil/setup.py) egg_info for package xfoil
2019-10-25T15:43:46     Running command python setup.py egg_info
2019-10-25T15:43:48     running egg_info
2019-10-25T15:43:48     creating pip-egg-info/xfoil.egg-info
2019-10-25T15:43:48     writing pip-egg-info/xfoil.egg-info/PKG-INFO
2019-10-25T15:43:48     writing dependency_links to pip-egg-info/xfoil.egg-info/dependency_links.txt
2019-10-25T15:43:48     writing requirements to pip-egg-info/xfoil.egg-info/requires.txt
2019-10-25T15:43:48     writing top-level names to pip-egg-info/xfoil.egg-info/top_level.txt
2019-10-25T15:43:48     writing manifest file 'pip-egg-info/xfoil.egg-info/SOURCES.txt'
2019-10-25T15:43:48     reading manifest file 'pip-egg-info/xfoil.egg-info/SOURCES.txt'
2019-10-25T15:43:48     writing manifest file 'pip-egg-info/xfoil.egg-info/SOURCES.txt'
2019-10-25T15:43:48     /usr/lib/python3.7/distutils/dist.py:274: UserWarning: Unknown distribution option: 'zip_save'
2019-10-25T15:43:48       warnings.warn(msg)
2019-10-25T15:43:49   Source in /tmp/pip-wheel-mwjucych/xfoil has version 1.1.1, which satisfies requirement xfoil==1.1.1 from https://files.pythonhosted.org/packages/04/60/2dd764444b07772e3be5f9b109c5e554da09262ff73795c5b55e5cae62f9/xfoil-1.1.1.tar.gz#sha256=0601a125fff8eae68882451485297de04573b83bd08326a6f925d8ec5389b6d7
2019-10-25T15:43:49   Removed xfoil==1.1.1 from https://files.pythonhosted.org/packages/04/60/2dd764444b07772e3be5f9b109c5e554da09262ff73795c5b55e5cae62f9/xfoil-1.1.1.tar.gz#sha256=0601a125fff8eae68882451485297de04573b83bd08326a6f925d8ec5389b6d7 from build tracker '/tmp/pip-req-tracker-1nq8y663'
2019-10-25T15:43:49 Building wheels for collected packages: xfoil
2019-10-25T15:43:49   Created temporary directory: /tmp/pip-wheel-yrrghot1
2019-10-25T15:43:49   Building wheel for xfoil (setup.py): started
2019-10-25T15:43:49   Destination directory: /tmp/pip-wheel-yrrghot1
2019-10-25T15:43:49   Running command /usr/bin/python3 -u -c 'import setuptools, tokenize;__file__='"'"'/tmp/pip-wheel-mwjucych/xfoil/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-yrrghot1
2019-10-25T15:43:50   /usr/lib/python3.7/distutils/dist.py:274: UserWarning: Unknown distribution option: 'zip_save'
2019-10-25T15:43:50     warnings.warn(msg)
2019-10-25T15:43:50   running bdist_wheel
2019-10-25T15:43:50   running build
2019-10-25T15:43:50   running build_py
2019-10-25T15:43:51   creating build
2019-10-25T15:43:51   creating build/lib.linux-armv7l-3.7
2019-10-25T15:43:51   creating build/lib.linux-armv7l-3.7/xfoil
2019-10-25T15:43:51   copying xfoil/model.py -> build/lib.linux-armv7l-3.7/xfoil
2019-10-25T15:43:51   copying xfoil/test.py -> build/lib.linux-armv7l-3.7/xfoil
2019-10-25T15:43:51   copying xfoil/__init__.py -> build/lib.linux-armv7l-3.7/xfoil
2019-10-25T15:43:51   copying xfoil/xfoil.py -> build/lib.linux-armv7l-3.7/xfoil
2019-10-25T15:43:51   running build_ext
2019-10-25T15:43:51   Traceback (most recent call last):
2019-10-25T15:43:51     File "<string>", line 1, in <module>
2019-10-25T15:43:51     File "/tmp/pip-wheel-mwjucych/xfoil/setup.py", line 149, in <module>
2019-10-25T15:43:51       zip_save=False
2019-10-25T15:43:51     File "/usr/local/lib/python3.7/dist-packages/setuptools/__init__.py", line 145, in setup
2019-10-25T15:43:51       return distutils.core.setup(**attrs)
2019-10-25T15:43:51     File "/usr/lib/python3.7/distutils/core.py", line 148, in setup
2019-10-25T15:43:51       dist.run_commands()
2019-10-25T15:43:51     File "/usr/lib/python3.7/distutils/dist.py", line 966, in run_commands
2019-10-25T15:43:51       self.run_command(cmd)
2019-10-25T15:43:51     File "/usr/lib/python3.7/distutils/dist.py", line 985, in run_command
2019-10-25T15:43:51       cmd_obj.run()
2019-10-25T15:43:51     File "/usr/lib/python3/dist-packages/wheel/bdist_wheel.py", line 188, in run
2019-10-25T15:43:51       self.run_command('build')
2019-10-25T15:43:51     File "/usr/lib/python3.7/distutils/cmd.py", line 313, in run_command
2019-10-25T15:43:51       self.distribution.run_command(command)
2019-10-25T15:43:51     File "/usr/lib/python3.7/distutils/dist.py", line 985, in run_command
2019-10-25T15:43:51       cmd_obj.run()
2019-10-25T15:43:51     File "/usr/lib/python3.7/distutils/command/build.py", line 135, in run
2019-10-25T15:43:51       self.run_command(cmd_name)
2019-10-25T15:43:51     File "/usr/lib/python3.7/distutils/cmd.py", line 313, in run_command
2019-10-25T15:43:51       self.distribution.run_command(command)
2019-10-25T15:43:51     File "/usr/lib/python3.7/distutils/dist.py", line 985, in run_command
2019-10-25T15:43:51       cmd_obj.run()
2019-10-25T15:43:51     File "/usr/local/lib/python3.7/dist-packages/setuptools/command/build_ext.py", line 78, in run
2019-10-25T15:43:51       _build_ext.run(self)
2019-10-25T15:43:51     File "/usr/lib/python3/dist-packages/Cython/Distutils/old_build_ext.py", line 186, in run
2019-10-25T15:43:51       _build_ext.build_ext.run(self)
2019-10-25T15:43:51     File "/usr/lib/python3.7/distutils/command/build_ext.py", line 309, in run
2019-10-25T15:43:51       force=self.force)
2019-10-25T15:43:51     File "/usr/lib/python3.7/distutils/ccompiler.py", line 1031, in new_compiler
2019-10-25T15:43:51       return klass(None, dry_run, force)
2019-10-25T15:43:51     File "/usr/lib/python3.7/distutils/cygwinccompiler.py", line 293, in __init__
2019-10-25T15:43:51       if self.gcc_version <= "2.91.57":
2019-10-25T15:43:51   TypeError: '<=' not supported between instances of 'NoneType' and 'str'
2019-10-25T15:43:51   Building wheel for xfoil (setup.py): finished with status 'error'
2019-10-25T15:43:51   ERROR: Failed building wheel for xfoil
2019-10-25T15:43:51   Running setup.py clean for xfoil
2019-10-25T15:43:51   Running command /usr/bin/python3 -u -c 'import setuptools, tokenize;__file__='"'"'/tmp/pip-wheel-mwjucych/xfoil/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' clean --all
2019-10-25T15:43:52   /usr/lib/python3.7/distutils/dist.py:274: UserWarning: Unknown distribution option: 'zip_save'
2019-10-25T15:43:52     warnings.warn(msg)
2019-10-25T15:43:53   running clean
2019-10-25T15:43:53   removing 'build/lib.linux-armv7l-3.7' (and everything under it)
2019-10-25T15:43:53   'build/bdist.linux-armv7l' does not exist -- can't clean it
2019-10-25T15:43:53   'build/scripts-3.7' does not exist -- can't clean it
2019-10-25T15:43:53   removing 'build'
2019-10-25T15:43:53 Failed to build xfoil
2019-10-25T15:43:53 Cleaning up...
2019-10-25T15:43:53   Removing source in /tmp/pip-wheel-mwjucych/xfoil
2019-10-25T15:43:53 Removed build tracker '/tmp/pip-req-tracker-1nq8y663'
2019-10-25T15:43:53 ERROR: Failed to build one or more wheels
2019-10-25T15:43:53 Exception information:
2019-10-25T15:43:53 Traceback (most recent call last):
2019-10-25T15:43:53   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 178, in main
2019-10-25T15:43:53     status = self.run(options, args)
2019-10-25T15:43:53   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 178, in run
2019-10-25T15:43:53     "Failed to build one or more wheels"
2019-10-25T15:43:53 pip._internal.exceptions.CommandError: Failed to build one or more wheels