2019-07-12T12:55:25 Created temporary directory: /tmp/pip-ephem-wheel-cache-d0xrb4mj
2019-07-12T12:55:25 Created temporary directory: /tmp/pip-req-tracker-18d0johg
2019-07-12T12:55:25 Created requirements tracker '/tmp/pip-req-tracker-18d0johg'
2019-07-12T12:55:25 Created temporary directory: /tmp/pip-wheel-le0dpjb1
2019-07-12T12:55:25 Collecting magicfile==0.4.21
2019-07-12T12:55:25   1 location(s) to search for versions of magicfile:
2019-07-12T12:55:25   * https://pypi.org/simple/magicfile/
2019-07-12T12:55:25   Getting page https://pypi.org/simple/magicfile/
2019-07-12T12:55:25   Analyzing links from page https://pypi.org/simple/magicfile/
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/2a/f4/35aa1e1edbe3efdaea8ffba5479e819a9ea200ea4cf39c36b871b257b03a/magicfile-0.4.15-py2.py3-none-macosx_10_6_x86_64.whl#sha256=2c74c00020dd41222f912445c9a1617c4af4970076f70b6aa103dfecde1f332b (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/31/2d/b79f3e029b6952e619961b4285b306de336133fe9b8c78e7ca70ec3ce254/magicfile-0.4.15-py2.py3-none-manylinux1_x86_64.whl#sha256=5299c287a4663a13e01808573b07b324701dc8369404e7e12edc37ca19238329 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/88/9d/b800d83b7f9460d510f0554518278c6097a661d5b2e90ffc29b1752c801d/magicfile-0.4.16-cp27-cp27m-manylinux1_x86_64.whl#sha256=4c6cc536bd222c9c8b92f0d245619095ba8dc7563ae8b4ca6499ab17db92dd8a (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/f6/e3/61897a41b502a43a5b91f1dd6b13538296b8a6aec26a944ee1ab5740ea3f/magicfile-0.4.16-cp34-cp34m-manylinux1_x86_64.whl#sha256=e2336fdcdf303b79454145a1ec9b21d9771400d30e94cd2881747e28f65e529f (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/db/39/cfbac988bf1cc1edc62c7d2a75f05c3bc593b3ce73c173714d8c10509553/magicfile-0.4.16-cp35-cp35m-manylinux1_x86_64.whl#sha256=de08a77f27c04cc1a03414588f4ef489f75a607e2652f7065f5507a4b7965003 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/86/b7/6b3d571fa6039bff3619aaae43e157dcc311be51650b582261a7394af8ec/magicfile-0.4.16-cp36-cp36m-macosx_10_6_x86_64.whl#sha256=864bca107288f6b3f7b92c8fac175dbbc8405fd848a9fdedf872a26f03fce01a (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/ad/72/038c488c53d6b77ba8e40745b463f23f4956994288b69f3be9d1c207acf6/magicfile-0.4.16-cp36-cp36m-manylinux1_x86_64.whl#sha256=c39ad046bb3a0b8dd42df2448b383acbdf8b280569f56ccf4d634ba77b299fce (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/c1/b9/f2ffcb7021c2a562d0212488df6275fadd699a7a58e6c9a3bd479d8491eb/magicfile-0.4.16-cp37-cp37m-manylinux1_x86_64.whl#sha256=59da5cfd75c43d46d99c8897cfbf2cc6e1687da719b2901b9b06e38710c5adaa (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/01/f6/1f08e8d087d60df1cbad6fecd5eae8ea181d59e6c536f288fff83a6387ad/magicfile-0.4.17-cp34-cp34m-manylinux1_x86_64.whl#sha256=d465e8f3e62786b16f5302c16ed6e73f1bda07a88db25ea5df7f40c1bfac1d54 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/b6/45/0276b502cd82e3e4a8c1ee5f641ac2ebc324453c253488ad3c6cdf3ebba9/magicfile-0.4.17-cp35-cp35m-manylinux1_x86_64.whl#sha256=5f6b07dbbb3043f10e680b9ce35c3f3381bba172d29e112f89eca85b5fc21a6e (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/0f/01/eaa1e0251edc35b82262caf5fc3980a408492f47a2e67144e921957d4b01/magicfile-0.4.17-cp36-cp36m-manylinux1_x86_64.whl#sha256=1fa5a8e5c450d959c3f5bbc07ddb964c5b958e5a214d0a3c83681311962e2ec0 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/ad/ae/9c1c0352c87d13668dcdcef3f0da89e666902dd8f77eeb113cce1c22408d/magicfile-0.4.17-cp37-cp37m-manylinux1_x86_64.whl#sha256=019e7b00db247fb927e4dc8a47804a3f8b01717f791978c6273d934c5dca1032 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/66/90/c34f6f19607f11719259f01a56521470b298957863d37ea3767262e4e726/magicfile-0.4.18-cp34-cp34m-manylinux1_x86_64.whl#sha256=c4788fdbd9e200b6026611597b8b1fe9ac06342890ece781a33d3cf1fac2c538 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/ba/7e/bd4c767ebc8cf81d7f2ed8f640bc1360c79b719ec9e9d7573f4bfd2ad7de/magicfile-0.4.18-cp35-cp35m-manylinux1_x86_64.whl#sha256=a4037fa0df80744d79e7421374eddec498619b8e54146143253ae2b5a9bf4100 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/94/8b/748649bbb2f2dc95167352d2a2e137dd68593a3f889a87b5c6901ac24b82/magicfile-0.4.18-cp36-cp36m-manylinux1_x86_64.whl#sha256=7160dd2f0dee347e5cb4de6435dcbd5b9fb24b9ed9d021133235c8e7c010c5fe (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/7f/df/0a783958dc320c84b0b506ecd9f6359fa3f006356f938c3eadc9605054bd/magicfile-0.4.18-cp37-cp37m-manylinux1_x86_64.whl#sha256=6cf78f5bfba0d8c4062566aec9caf75e0d20e770f6468f1037f0fc3974370d71 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/72/9e/399818fcc268bb9fd1263b53355f6daa19b6e1fea13e57c8eb14c54afdf2/magicfile-0.4.19-cp34-cp34m-manylinux1_x86_64.whl#sha256=0500c09cf587151d151e48b8bb93d8370c86e299b6144c2694d6503c45f363ea (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/92/90/6d979db0ec68123d966ed0a891b293cf917215cd263edeefe36cf62ccd32/magicfile-0.4.19-cp35-cp35m-manylinux1_x86_64.whl#sha256=b589ab40acd661363da97c9a0d632a696d31bd949a5982caa7254fef550d4d7d (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/15/39/1af61b475f2b14903d2c074d9829f0bbe2164f9318ebdf77e9d633714681/magicfile-0.4.19-cp36-cp36m-macosx_10_6_x86_64.whl#sha256=970b1d361a1a0d40b11f1ebda4f958c6cf8c0303d12c1142208d711232affa26 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/27/77/acfd36b7e1bd6b49db0b738b7451c80d3f2e13ca4c3cf713b0f975c8aff9/magicfile-0.4.19-cp36-cp36m-manylinux1_x86_64.whl#sha256=39d5a32f6237de3cb356a2c71caad9ae77f6ec087635366516062e38ce18e984 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/5e/1f/a923d61c51b3eb54f896eb9e0a39a7dd84e4d1b89bfb847e0efe70707a17/magicfile-0.4.19-cp37-cp37m-manylinux1_x86_64.whl#sha256=94558783161e5820d07f839a154f2d147fb094982a1249c0fecc48222fba9462 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/9e/66/2083079a63ae44e45c1371262aecb7f228554aac78fa0df5ace9ed5dc349/magicfile-0.4.20-cp34-cp34m-manylinux1_x86_64.whl#sha256=d14f1638d1623e7ccdf7a7f8d028c984a3f2675dfb74b3df52b3f7f2c1343a6f (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/26/99/c5353907c349d2bcc025d54b0f610336c1e9c8e947a2c17dd913e73554c1/magicfile-0.4.20-cp35-cp35m-manylinux1_x86_64.whl#sha256=0bb68cfee8f84f0141a9553fa582ac91d22bf70fe79d5cfb345eec4f5b0bf519 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/cc/7e/5f2580f7094bb6447a4bdd2b00aa090bdef0dd5ba4e9b23ed81e154defe4/magicfile-0.4.20-cp36-cp36m-macosx_10_6_x86_64.whl#sha256=5568be8970a1b48620c8c73f41ed721481c8249e1e21623aa7bf91f65c52418c (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/e7/c7/44344cf835df8993cb6c881c84bb0693923effadac8417d7e2910253c430/magicfile-0.4.20-cp36-cp36m-manylinux1_x86_64.whl#sha256=bff41c6074a9d1358fad2f00dd68154942e4894e6bfac8d659eb98af6303233a (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/f4/49/becf671837215a660bf31412654d6e476c79c157a4604ef55bf156807cd0/magicfile-0.4.20-cp37-cp37m-manylinux1_x86_64.whl#sha256=28c4fa84d75d99216e3f73ecaaf869bf9e69225db1d62321f2af70c88cd7c327 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/28/ba/9eea182fd51699d8f8d6efc3c89e40678ef2bd52bb1a4dbeee7c465d1f60/magicfile-0.4.21-cp34-cp34m-manylinux1_x86_64.whl#sha256=0b6d3fa29daa60c49002b41f3c235ab480189bef2f975f7944b11dacbd32f492 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/aa/ce/6e8c26215efcfe4bde4e5dda62ee5240db2b7170a46b639804d118173289/magicfile-0.4.21-cp35-cp35m-manylinux1_x86_64.whl#sha256=743e917d9f9f7dc3a0c8baab6961e34b31f570cd4ecfc356776d7be47b6901a0 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/09/a7/78b18cf3ec1a038981bbe3e9d3a9695d3ea824ec51b878de9e7a5b548b71/magicfile-0.4.21-cp36-cp36m-macosx_10_11_x86_64.whl#sha256=93507ee9994541aee086d466a03e6c7b375cbe3d755f1bbffaa7b395b009b181 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/19/d0/cf32f5353eef81513f20ec69fc927f40847af5852881aae5c5210a2f5efa/magicfile-0.4.21-cp36-cp36m-manylinux1_x86_64.whl#sha256=a8ee08e2b52e06373a68d23897efa83d285819361da18a0f68fdb95ec989399c (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/b7/5c/77a6138b90ddb4be56360f41e6db54c8fa9a822254f3cf846918ce406bd6/magicfile-0.4.21-cp37-cp37m-macosx_10_11_x86_64.whl#sha256=b09b7bc6edd3187782b4ad2c7a624ddad889e6940db04b4a620160b1a3468cbd (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Skipping link https://files.pythonhosted.org/packages/29/0e/fb24382cc329bdc8e629e42a97a3f1f52b082a9412ffca3b7e168323119c/magicfile-0.4.21-cp37-cp37m-manylinux1_x86_64.whl#sha256=2d7310a061d111c1b618238db787fc217d1fa1df3b11c297c272a4f78531c666 (from https://pypi.org/simple/magicfile/); it is not compatible with this Python
2019-07-12T12:55:25     Found link https://files.pythonhosted.org/packages/f7/e3/228b6af6f49f09c8b16be78b35c17fca5a906daaf1735fd3c30aff3e0fca/magicfile-0.4.21.tar.gz#sha256=fc8d4d0a7d6a3d168bbb0f900d4dfdf105c821d852c3766dcb23bb3043a09351 (from https://pypi.org/simple/magicfile/), version: 0.4.21
2019-07-12T12:55:25   Using version 0.4.21 (newest of versions: 0.4.21)
2019-07-12T12:55:25   Created temporary directory: /tmp/pip-unpack-obyyp94c
2019-07-12T12:55:25   Downloading https://files.pythonhosted.org/packages/f7/e3/228b6af6f49f09c8b16be78b35c17fca5a906daaf1735fd3c30aff3e0fca/magicfile-0.4.21.tar.gz (255kB)
2019-07-12T12:55:25   Downloading from URL https://files.pythonhosted.org/packages/f7/e3/228b6af6f49f09c8b16be78b35c17fca5a906daaf1735fd3c30aff3e0fca/magicfile-0.4.21.tar.gz#sha256=fc8d4d0a7d6a3d168bbb0f900d4dfdf105c821d852c3766dcb23bb3043a09351 (from https://pypi.org/simple/magicfile/)
2019-07-12T12:55:26   Added magicfile==0.4.21 from https://files.pythonhosted.org/packages/f7/e3/228b6af6f49f09c8b16be78b35c17fca5a906daaf1735fd3c30aff3e0fca/magicfile-0.4.21.tar.gz#sha256=fc8d4d0a7d6a3d168bbb0f900d4dfdf105c821d852c3766dcb23bb3043a09351 to build tracker '/tmp/pip-req-tracker-18d0johg'
2019-07-12T12:55:26     Running setup.py (path:/tmp/pip-wheel-le0dpjb1/magicfile/setup.py) egg_info for package magicfile
2019-07-12T12:55:26     Running command python setup.py egg_info
2019-07-12T12:55:28     running egg_info
2019-07-12T12:55:28     creating pip-egg-info/magicfile.egg-info
2019-07-12T12:55:28     writing pip-egg-info/magicfile.egg-info/PKG-INFO
2019-07-12T12:55:28     writing dependency_links to pip-egg-info/magicfile.egg-info/dependency_links.txt
2019-07-12T12:55:28     writing requirements to pip-egg-info/magicfile.egg-info/requires.txt
2019-07-12T12:55:28     writing top-level names to pip-egg-info/magicfile.egg-info/top_level.txt
2019-07-12T12:55:28     writing manifest file 'pip-egg-info/magicfile.egg-info/SOURCES.txt'
2019-07-12T12:55:28     reading manifest file 'pip-egg-info/magicfile.egg-info/SOURCES.txt'
2019-07-12T12:55:28     reading manifest template 'MANIFEST.in'
2019-07-12T12:55:28     writing manifest file 'pip-egg-info/magicfile.egg-info/SOURCES.txt'
2019-07-12T12:55:28   Source in /tmp/pip-wheel-le0dpjb1/magicfile has version 0.4.21, which satisfies requirement magicfile==0.4.21 from https://files.pythonhosted.org/packages/f7/e3/228b6af6f49f09c8b16be78b35c17fca5a906daaf1735fd3c30aff3e0fca/magicfile-0.4.21.tar.gz#sha256=fc8d4d0a7d6a3d168bbb0f900d4dfdf105c821d852c3766dcb23bb3043a09351
2019-07-12T12:55:28   Removed magicfile==0.4.21 from https://files.pythonhosted.org/packages/f7/e3/228b6af6f49f09c8b16be78b35c17fca5a906daaf1735fd3c30aff3e0fca/magicfile-0.4.21.tar.gz#sha256=fc8d4d0a7d6a3d168bbb0f900d4dfdf105c821d852c3766dcb23bb3043a09351 from build tracker '/tmp/pip-req-tracker-18d0johg'
2019-07-12T12:55:28 Building wheels for collected packages: magicfile
2019-07-12T12:55:28   Created temporary directory: /tmp/pip-wheel-_d1wn7m9
2019-07-12T12:55:28   Building wheel for magicfile (setup.py): started
2019-07-12T12:55:28   Destination directory: /tmp/pip-wheel-_d1wn7m9
2019-07-12T12:55:28   Running command /usr/bin/python3 -u -c 'import setuptools, tokenize;__file__='"'"'/tmp/pip-wheel-le0dpjb1/magicfile/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-_d1wn7m9
2019-07-12T12:55:30   running bdist_wheel
2019-07-12T12:55:30   running build
2019-07-12T12:55:30   running build_py
2019-07-12T12:55:30   creating build
2019-07-12T12:55:30   creating build/lib.linux-armv7l-3.7
2019-07-12T12:55:30   creating build/lib.linux-armv7l-3.7/magicfile
2019-07-12T12:55:30   copying magicfile/__init__.py -> build/lib.linux-armv7l-3.7/magicfile
2019-07-12T12:55:30   copying magicfile/_libmagic_build.py -> build/lib.linux-armv7l-3.7/magicfile
2019-07-12T12:55:30   running egg_info
2019-07-12T12:55:30   writing magicfile.egg-info/PKG-INFO
2019-07-12T12:55:30   writing dependency_links to magicfile.egg-info/dependency_links.txt
2019-07-12T12:55:30   writing requirements to magicfile.egg-info/requires.txt
2019-07-12T12:55:30   writing top-level names to magicfile.egg-info/top_level.txt
2019-07-12T12:55:30   reading manifest file 'magicfile.egg-info/SOURCES.txt'
2019-07-12T12:55:30   reading manifest template 'MANIFEST.in'
2019-07-12T12:55:30   writing manifest file 'magicfile.egg-info/SOURCES.txt'
2019-07-12T12:55:30   copying magicfile/magic.mgc -> build/lib.linux-armv7l-3.7/magicfile
2019-07-12T12:55:31   running build_ext
2019-07-12T12:55:31   generating cffi module 'build/temp.linux-armv7l-3.7/magicfile._libmagic.c'
2019-07-12T12:55:31   creating build/temp.linux-armv7l-3.7
2019-07-12T12:55:31   building 'magicfile._libmagic' extension
2019-07-12T12:55:31   creating build/temp.linux-armv7l-3.7/build
2019-07-12T12:55:31   creating build/temp.linux-armv7l-3.7/build/temp.linux-armv7l-3.7
2019-07-12T12:55:31   arm-linux-gnueabihf-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/python3.7m -c build/temp.linux-armv7l-3.7/magicfile._libmagic.c -o build/temp.linux-armv7l-3.7/build/temp.linux-armv7l-3.7/magicfile._libmagic.o
2019-07-12T12:55:31   build/temp.linux-armv7l-3.7/magicfile._libmagic.c:492:10: fatal error: magic.h: No such file or directory
2019-07-12T12:55:31    #include <magic.h>
2019-07-12T12:55:31             ^~~~~~~~~
2019-07-12T12:55:31   compilation terminated.
2019-07-12T12:55:31   error: command 'arm-linux-gnueabihf-gcc' failed with exit status 1
2019-07-12T12:55:31   Building wheel for magicfile (setup.py): finished with status 'error'
2019-07-12T12:55:31   ERROR: Failed building wheel for magicfile
2019-07-12T12:55:31   Running setup.py clean for magicfile
2019-07-12T12:55:31   Running command /usr/bin/python3 -u -c 'import setuptools, tokenize;__file__='"'"'/tmp/pip-wheel-le0dpjb1/magicfile/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' clean --all
2019-07-12T12:55:33   running clean
2019-07-12T12:55:33   removing 'build/temp.linux-armv7l-3.7' (and everything under it)
2019-07-12T12:55:33   removing 'build/lib.linux-armv7l-3.7' (and everything under it)
2019-07-12T12:55:33   'build/bdist.linux-armv7l' does not exist -- can't clean it
2019-07-12T12:55:33   'build/scripts-3.7' does not exist -- can't clean it
2019-07-12T12:55:33   removing 'build'
2019-07-12T12:55:33 Failed to build magicfile
2019-07-12T12:55:33 Cleaning up...
2019-07-12T12:55:33   Removing source in /tmp/pip-wheel-le0dpjb1/magicfile
2019-07-12T12:55:33 Removed build tracker '/tmp/pip-req-tracker-18d0johg'
2019-07-12T12:55:33 ERROR: Failed to build one or more wheels
2019-07-12T12:55:33 Exception information:
2019-07-12T12:55:33 Traceback (most recent call last):
2019-07-12T12:55:33   File "/home/piwheels/.local/lib/python3.7/site-packages/pip/_internal/cli/base_command.py", line 178, in main
2019-07-12T12:55:33     status = self.run(options, args)
2019-07-12T12:55:33   File "/home/piwheels/.local/lib/python3.7/site-packages/pip/_internal/commands/wheel.py", line 178, in run
2019-07-12T12:55:33     "Failed to build one or more wheels"
2019-07-12T12:55:33 pip._internal.exceptions.CommandError: Failed to build one or more wheels