Created temporary directory: /tmp/pip-ephem-wheel-cache-kc8swh0q
Created temporary directory: /tmp/pip-req-tracker-fufkpl6z
Created requirements tracker '/tmp/pip-req-tracker-fufkpl6z'
Created temporary directory: /tmp/pip-wheel-gyf7p7t0
Collecting virtualenv-api==2.1.18
  1 location(s) to search for versions of virtualenv-api:
  * https://pypi.org/simple/virtualenv-api/
  Getting page https://pypi.org/simple/virtualenv-api/
  Analyzing links from page https://pypi.org/simple/virtualenv-api/
    Found link https://files.pythonhosted.org/packages/a2/a8/5786ef9ab9d6ce553b06e49ba1e321920969eeecd708825765a0be6a604d/virtualenv-api-1.0.0.tar.gz#sha256=a1d0484e08887b087ff230a8d4fc245a4d4c9727bb39644ea96c0e4f84945d7e (from https://pypi.org/simple/virtualenv-api/), version: 1.0.0
    Found link https://files.pythonhosted.org/packages/be/b5/459e3517e132c3db02d974061a2b08e082f51f79d07b349788f22b889932/virtualenv-api-1.1.0.tar.gz#sha256=2ea522a228e94db73b86edd7720a9e29323e63c9897b2527fb523504fd999773 (from https://pypi.org/simple/virtualenv-api/), version: 1.1.0
    Found link https://files.pythonhosted.org/packages/d9/36/d3335c05f44ddfdbc95cb6a4e6ec89aeda6d5ab8fb8b5ded971c16647134/virtualenv-api-2.0.0.tar.gz#sha256=de03bcc678874d531d2cf463f763e89e96a8bf7b2ff1b0d528d39f342d594e16 (from https://pypi.org/simple/virtualenv-api/), version: 2.0.0
    Found link https://files.pythonhosted.org/packages/b9/b3/be12e5bf5f98741e870ec815762887f2e9320d31e66f892f28f923e9c2c2/virtualenv-api-2.0.1.tar.gz#sha256=aa83244bbf8ba1f7698df536251abf993d2bbd3018e5d86c0b17706a4f0d952c (from https://pypi.org/simple/virtualenv-api/), version: 2.0.1
    Found link https://files.pythonhosted.org/packages/bc/6b/d950a854275fc15586e9c0122638f0a00acefd150889d796763872ba9a09/virtualenv-api-2.1.0.tar.gz#sha256=1ffdffcfc3d0c075cf7f84af4d47271bc0eb8c1b87419003c7a07cfe39b70803 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.0
    Found link https://files.pythonhosted.org/packages/7f/13/edbe0e515a94067d0439428ed4a2c21f3697c4732dd1373eb2fdcb951a88/virtualenv-api-2.1.1.tar.gz#sha256=43fdb6f8a91b235650448e9bc04c42d99f59dd60b3949826a984944cd832a5c7 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.1
    Found link https://files.pythonhosted.org/packages/12/05/e52b4c3761eec24a2a64f605846d0c9bb3a66c21c0db53ad14ee7bb0ae52/virtualenv-api-2.1.2.tar.gz#sha256=6460592750713a51d5fcc447f58344a91a3efe6ab40c8b2f3c7734f5727ca2f2 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.2
    Found link https://files.pythonhosted.org/packages/79/ab/b459085a2ee7e8dfaf74f9cfa2c9b667b444048ec99c8b3db7e9188d3cba/virtualenv-api-2.1.3.tar.gz#sha256=b7c54f4f2954a2e83cf86737186a1333ea48a387953f656d375368c922aa7f9a (from https://pypi.org/simple/virtualenv-api/), version: 2.1.3
    Found link https://files.pythonhosted.org/packages/fc/d8/d57db5b3182662496c9d41e2b4f8af0959cbd107a4eedfc62b23f417b348/virtualenv-api-2.1.4.tar.gz#sha256=005d07870bf842c9026bce01ee066338d18238591dfab604d9761694a77a9104 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.4
    Found link https://files.pythonhosted.org/packages/4b/28/f656de9e69cee316a069dc5b89a4218b17d53973d5c5307e63b8cf749a2d/virtualenv_api-2.1.4-py2.py3-none-any.whl#sha256=5b65cb4b36fb28ec77bae4bb1fae35cb8313ffdcbedd92779ac7f45c096a0214 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.4
    Found link https://files.pythonhosted.org/packages/b1/ea/39208b3435ca0b17c04886de787ffc4b9ad0226c24ef91f5b4af3d8a5563/virtualenv-api-2.1.6.tar.gz#sha256=8bba463c20fecbf546e747d58c68bd2fcbabab3213c0d1ca824e91b3b1da0135 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.6
    Found link https://files.pythonhosted.org/packages/19/63/dcb1443d981a3ca7236388ffe8f5469b8a1a06f90394be75273d21917310/virtualenv_api-2.1.6-py2.py3-none-any.whl#sha256=00d6e1d334ad395fda96d655e314b95e283f32791fa532f46acf2cc2918824b3 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.6
    Found link https://files.pythonhosted.org/packages/a2/97/21c3717d8249e583e97c906a588213b117aad2091d43183ac2830f4bfeba/virtualenv-api-2.1.7.tar.gz#sha256=7cc396b544c3818541c20bfa8d8a8ae08e839ef604825f14ca4f4bc53de48a1b (from https://pypi.org/simple/virtualenv-api/), version: 2.1.7
    Found link https://files.pythonhosted.org/packages/3c/9a/2dbe27eddfa5b3a5dad3f2840eac62979b34d83aae35804c08e26a039d1c/virtualenv_api-2.1.7-py2.py3-none-any.whl#sha256=dd09449b5aed622706a68f723a81f8ba8b32c17b84120ad3d01998115c39c235 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.7
    Found link https://files.pythonhosted.org/packages/0c/16/b6039b26d8523f8d19d6800eec71daf44ae67e313ac3e6746c860dbd25b8/virtualenv-api-2.1.8.tar.gz#sha256=92397423d700fa51ed4f782f2b163901bd5d86b2e73b21b5d287901e6d2fe57f (from https://pypi.org/simple/virtualenv-api/), version: 2.1.8
    Found link https://files.pythonhosted.org/packages/5b/39/421785741fb3f6a2283d8c36a4066a7de2e43a3fc60445e41c12009995aa/virtualenv_api-2.1.8-py2.py3-none-any.whl#sha256=c6a188762664e46a900655d8a044f41d4d74b2e7c15eae45c75c41fbc11205c2 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.8
    Found link https://files.pythonhosted.org/packages/9d/2e/388b54b30e7c6c4dfe0de0cb729254c18d84883bb1339aafa76e86cb6730/virtualenv-api-2.1.9.tar.gz#sha256=302aaab651f1fe973f4def4f3f910ca704b5c82b54fee33daff1e79b698e7e9c (from https://pypi.org/simple/virtualenv-api/), version: 2.1.9
    Found link https://files.pythonhosted.org/packages/82/9b/d4509506fa16ebc04cf8c34b6fa3255dc589c1fe3dbeeed5ee14272bab41/virtualenv_api-2.1.9-py2.py3-none-any.whl#sha256=a4e63ca891fa4f7f61f1e93834d83dcfda2ace45b4764f764e47e867691abf15 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.9
    Found link https://files.pythonhosted.org/packages/da/16/b5a0cc52664d6c261c91b1c2413eb6655b859f8c2d264b130e24a976cd75/virtualenv-api-2.1.10.tar.gz#sha256=3c44bd0b8ba6c9eac95733062a89c41320028908df5f39bfeb487d1d609f01ef (from https://pypi.org/simple/virtualenv-api/), version: 2.1.10
    Found link https://files.pythonhosted.org/packages/e4/9d/f975df81419ee754ecf1529ea582c73ac57d43dd29d595561887e34421f2/virtualenv_api-2.1.10-py2.py3-none-any.whl#sha256=5cfe1daf6cacede978f932a4b6b286f8afb19025bdcd8f3a65bcaf0c412f8280 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.10
    Found link https://files.pythonhosted.org/packages/1a/1c/bd934911050e0e13da07ee2a1374fc323f5427e2ca2a9cc25776aa7afbc5/virtualenv-api-2.1.11.tar.gz#sha256=ca79ccb34f00ae26cca02fd8515035ce1ebfc47ef0a30b569dd7d35cb228e7db (from https://pypi.org/simple/virtualenv-api/), version: 2.1.11
    Found link https://files.pythonhosted.org/packages/b1/1d/203ae2a68cb45deee996213208e54965693f6b01c25046dbb12df649c257/virtualenv_api-2.1.11-py2.py3-none-any.whl#sha256=b1f745fba5a8d2037fb53ed45e9d321cbfe729bc32945055640ab6ab20ac7eff (from https://pypi.org/simple/virtualenv-api/), version: 2.1.11
    Found link https://files.pythonhosted.org/packages/20/ae/2f3bef63848656ce8f13ac9c9a7d2f3e89198b0382e1cc014315a7fcc3b2/virtualenv-api-2.1.12.tar.gz#sha256=28fc72cdfd1b9b0af4f8d2bf74f2227b4e66bd3dca31e17dfa0f04fc36a1a1c1 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.12
    Found link https://files.pythonhosted.org/packages/87/9d/2dba1ee5f0e6c5188f566e3f005f90e23fbd708c39a38d364c6fc5393233/virtualenv_api-2.1.12-py2.py3-none-any.whl#sha256=0ffe482006165f7c0e77b5d31390b14437031b393a9b62e6b40a028918b8f8f5 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.12
    Found link https://files.pythonhosted.org/packages/69/24/eb2fb7f339d6d90d9f295517f0dca84cf212390c81b82da0a67c702e7f38/virtualenv-api-2.1.13.tar.gz#sha256=ccf2438c7f6351ac67144a85630beeb8fc1e79178a7eee0e6422497ae9e85ee0 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.13
    Found link https://files.pythonhosted.org/packages/05/06/92f82ce555d12c5d217b0b7dbc592e2cc42f2f45174724ae15bfc1bda2b7/virtualenv_api-2.1.13-py2.py3-none-any.whl#sha256=b1e2927b3343c1768a30ceeae269674e48a7d87bffef951e849c748e73439a0c (from https://pypi.org/simple/virtualenv-api/), version: 2.1.13
    Found link https://files.pythonhosted.org/packages/0e/4f/64113089de0275e188e185852b10aea9c204ed175eb0824f5c00bcbcee21/virtualenv-api-2.1.14.tar.gz#sha256=259eab77cdfbe79e6a7d4ce7ba1a9b15ffe3d648d2924f80e2b424135b1df643 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.14
    Found link https://files.pythonhosted.org/packages/cf/81/ca2a3c37167c15b03532b375a63fcf75175cc760270201dea16273425508/virtualenv_api-2.1.14-py2.py3-none-any.whl#sha256=30d0d75725c8fee396ad51afd041187905f3d872fec2ba1393f6498663444f5e (from https://pypi.org/simple/virtualenv-api/), version: 2.1.14
    Found link https://files.pythonhosted.org/packages/6a/0b/d61ba47132b95564ebd31fa19266c65c098c24324a1bd1f5a698496d3070/virtualenv-api-2.1.15.tar.gz#sha256=d4847d149a0d9bd9560b30da90d6a56d6705e8f345574711db7b807e932f6e5a (from https://pypi.org/simple/virtualenv-api/), version: 2.1.15
    Found link https://files.pythonhosted.org/packages/e8/c6/23c6bbac37c9ab010cfd117da7c51832c7c996c7cbe575ffcb7a83713b90/virtualenv_api-2.1.15-py2.py3-none-any.whl#sha256=33d744c4e9a26142743cc1d481993c8f1e8a9f3e1e009a0877a2dafd7950252a (from https://pypi.org/simple/virtualenv-api/), version: 2.1.15
    Found link https://files.pythonhosted.org/packages/52/10/ebe92a360d626916504203465cfcbd1e22574521b45a82b15b9666e4241e/virtualenv-api-2.1.16.tar.gz#sha256=b0910986905612b665122c543a56223d9774b76712dc295c5ac43eb896c2b9b0 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.16
    Found link https://files.pythonhosted.org/packages/b1/b6/6799799a67fab60620444b688133df1be00c1aeb56d395d25cd4d145254e/virtualenv_api-2.1.16-py2.py3-none-any.whl#sha256=c9fd26e5fb999ed682361be402e9876a0ae855b75dd55961eb8b7e54f46f4bc9 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.16
    Found link https://files.pythonhosted.org/packages/53/5e/78d374d9e3742a3fc8f9a39b579602eb160dd258cec404ea1d6831b6bfa9/virtualenv-api-2.1.17.tar.gz#sha256=b0a239feef35b4475162945d9987956881c7d378cf7828d8ceb5667d249b41db (from https://pypi.org/simple/virtualenv-api/), version: 2.1.17
    Found link https://files.pythonhosted.org/packages/f2/b8/06f16529258cfa315653ece7c440b2c7c5f4fa41ba5890b43e16ab556b6b/virtualenv_api-2.1.17-py2.py3-none-any.whl#sha256=cc4f4b57dfd2f938d598f980c36b4f9793c622148083729f87f7a3594d26c002 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.17
    Found link https://files.pythonhosted.org/packages/66/6c/59cf0e953613f572308f540b44c9e0114163716fb233df2ae2a3ae7b176e/virtualenv-api-2.1.18.tar.gz#sha256=2115cceaeab27faf2909780c442f4ee7a33fda9a49fe8255967432290a0557af (from https://pypi.org/simple/virtualenv-api/), version: 2.1.18
    Found link https://files.pythonhosted.org/packages/ee/cb/197bc3ba2a5f1d3af520f1acfb124dd696a63561c360abadd86619f54fad/virtualenv_api-2.1.18-py2.py3-none-any.whl#sha256=7b9227a32b97dfddfc1f362cbd78ab768226be663c2ae20c7182e6d428268c28 (from https://pypi.org/simple/virtualenv-api/), version: 2.1.18
  Using version 2.1.18 (newest of versions: 2.1.18)
  Created temporary directory: /tmp/pip-unpack-x00uyfw0
  Downloading https://files.pythonhosted.org/packages/ee/cb/197bc3ba2a5f1d3af520f1acfb124dd696a63561c360abadd86619f54fad/virtualenv_api-2.1.18-py2.py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/ee/cb/197bc3ba2a5f1d3af520f1acfb124dd696a63561c360abadd86619f54fad/virtualenv_api-2.1.18-py2.py3-none-any.whl#sha256=7b9227a32b97dfddfc1f362cbd78ab768226be663c2ae20c7182e6d428268c28 (from https://pypi.org/simple/virtualenv-api/)
  Saved /tmp/tmpuvaf74ij/virtualenv_api-2.1.18-py2.py3-none-any.whl
  Added virtualenv-api==2.1.18 from https://files.pythonhosted.org/packages/ee/cb/197bc3ba2a5f1d3af520f1acfb124dd696a63561c360abadd86619f54fad/virtualenv_api-2.1.18-py2.py3-none-any.whl#sha256=7b9227a32b97dfddfc1f362cbd78ab768226be663c2ae20c7182e6d428268c28 to build tracker '/tmp/pip-req-tracker-fufkpl6z'
  Removed virtualenv-api==2.1.18 from https://files.pythonhosted.org/packages/ee/cb/197bc3ba2a5f1d3af520f1acfb124dd696a63561c360abadd86619f54fad/virtualenv_api-2.1.18-py2.py3-none-any.whl#sha256=7b9227a32b97dfddfc1f362cbd78ab768226be663c2ae20c7182e6d428268c28 from build tracker '/tmp/pip-req-tracker-fufkpl6z'
Skipping virtualenv-api, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-gyf7p7t0/virtualenv-api
Removed build tracker '/tmp/pip-req-tracker-fufkpl6z'