Created temporary directory: /tmp/pip-ephem-wheel-cache-7kg5r8q8
Created temporary directory: /tmp/pip-req-tracker-bc3qdbe4
Created requirements tracker '/tmp/pip-req-tracker-bc3qdbe4'
Created temporary directory: /tmp/pip-wheel-s0xspkxw
Collecting PyFFI==2.2.4.dev3
  1 location(s) to search for versions of PyFFI:
  * https://pypi.org/simple/pyffi/
  Getting page https://pypi.org/simple/pyffi/
  Analyzing links from page https://pypi.org/simple/pyffi/
    Found link https://files.pythonhosted.org/packages/f9/6d/c63e1634cbdd05fc333167532ca86c47079a49bdc4fc42c7ee6f296ca9cd/PyFFI-2.2.2.zip#sha256=d4516db7daf12ab5d81f024202a695664274f2beee4798ed4f9a0946ed407e6b (from https://pypi.org/simple/pyffi/), version: 2.2.2
    Found link https://files.pythonhosted.org/packages/6e/b8/e088ea099405e66b19b24a45c3056048adc1a90840d0de16e0c6de63c6bf/PyFFI-2.2.3-py3-none-any.whl#sha256=6adaa791b2e79b48e5cbdde1a51705ef896e7c613bbd0b2abb07f5408e6e99b5 (from https://pypi.org/simple/pyffi/), version: 2.2.3
    Found link https://files.pythonhosted.org/packages/ef/8d/2a427cc7adaafeffc7fdf3c15c28c8898662ac6fd94b798598288adfb589/PyFFI-2.2.3.tar.gz#sha256=175827047e0f45e359aa401115d408030c5a2151938de751df9ab1d6c5b3de9d (from https://pypi.org/simple/pyffi/), version: 2.2.3
    Found link https://files.pythonhosted.org/packages/f6/1c/ab2fa44c5f16d9afb84dc750db8b99a9abd3c46d03496e13720d0434fc77/PyFFI-2.2.4.dev1-py3-none-any.whl#sha256=1d17a58b9000bcef4dc626235664b7db6eb307af2a28540f985a0ab21f6fc1e2 (from https://pypi.org/simple/pyffi/), version: 2.2.4.dev1
    Found link https://files.pythonhosted.org/packages/bf/6b/8960f17573ef07506f0c9967170f5297bff94315f229d2ae0b69e93c9edc/PyFFI-2.2.4.dev1.tar.gz#sha256=511ca231b0092f4bf287797d37589bda8b85e98ac8163547170ced004e2c6e8c (from https://pypi.org/simple/pyffi/), version: 2.2.4.dev1
    Found link https://files.pythonhosted.org/packages/40/ca/acafca5c5011dad4771a4d484aabf8d0b382678219628b09d427f1c7cedf/PyFFI-2.2.4.dev2-py3-none-any.whl#sha256=f03bdc36fbba537b8a05a09f259334ad207f66d6949a8ecbbb250e2e77584e05 (from https://pypi.org/simple/pyffi/), version: 2.2.4.dev2
    Found link https://files.pythonhosted.org/packages/4e/f9/dfae0d9f481ad794f915bda9b52b5680f2c1412517e8245285e8d13ddf9a/PyFFI-2.2.4.dev2.tar.gz#sha256=ccf1bc14c6b64baea86eb714f00fbfc3a08fa00b154cb81a514cbf6c6f704036 (from https://pypi.org/simple/pyffi/), version: 2.2.4.dev2
    Found link https://files.pythonhosted.org/packages/18/32/7c8213664e81e813f445cfd452c1941dbfe678b7445514b14da70210477d/PyFFI-2.2.4.dev3-py3-none-any.whl#sha256=dacba38184ce4ab87b902a0db4a13fd507ba02e14b556c65dd4bd2ee7f1e094f (from https://pypi.org/simple/pyffi/), version: 2.2.4.dev3
    Found link https://files.pythonhosted.org/packages/70/0c/9e44019683cae75d1ea7de41e1c21d501bc50aea87dce77bb61a3081e4e4/PyFFI-2.2.4.dev3.tar.gz#sha256=7f1f25dbfbc3cf70a502cb5971e405e36415a3f40de072136f211ef0b26e96ef (from https://pypi.org/simple/pyffi/), version: 2.2.4.dev3
  Using version 2.2.4.dev3 (newest of versions: 2.2.4.dev3)
  Created temporary directory: /tmp/pip-unpack-m8mkrx8f
  Downloading https://files.pythonhosted.org/packages/18/32/7c8213664e81e813f445cfd452c1941dbfe678b7445514b14da70210477d/PyFFI-2.2.4.dev3-py3-none-any.whl (545kB)
  Downloading from URL https://files.pythonhosted.org/packages/18/32/7c8213664e81e813f445cfd452c1941dbfe678b7445514b14da70210477d/PyFFI-2.2.4.dev3-py3-none-any.whl#sha256=dacba38184ce4ab87b902a0db4a13fd507ba02e14b556c65dd4bd2ee7f1e094f (from https://pypi.org/simple/pyffi/)
  Saved /tmp/tmpy4h161ci/PyFFI-2.2.4.dev3-py3-none-any.whl
  Added PyFFI==2.2.4.dev3 from https://files.pythonhosted.org/packages/18/32/7c8213664e81e813f445cfd452c1941dbfe678b7445514b14da70210477d/PyFFI-2.2.4.dev3-py3-none-any.whl#sha256=dacba38184ce4ab87b902a0db4a13fd507ba02e14b556c65dd4bd2ee7f1e094f to build tracker '/tmp/pip-req-tracker-bc3qdbe4'
  Removed PyFFI==2.2.4.dev3 from https://files.pythonhosted.org/packages/18/32/7c8213664e81e813f445cfd452c1941dbfe678b7445514b14da70210477d/PyFFI-2.2.4.dev3-py3-none-any.whl#sha256=dacba38184ce4ab87b902a0db4a13fd507ba02e14b556c65dd4bd2ee7f1e094f from build tracker '/tmp/pip-req-tracker-bc3qdbe4'
Skipping PyFFI, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-s0xspkxw/PyFFI
Removed build tracker '/tmp/pip-req-tracker-bc3qdbe4'