Created temporary directory: /tmp/pip-ephem-wheel-cache-o60nbshd
Created temporary directory: /tmp/pip-req-tracker-bo8x1ejj
Created requirements tracker '/tmp/pip-req-tracker-bo8x1ejj'
Created temporary directory: /tmp/pip-wheel-6o3yfn5c
Looking in indexes: https://pypi.python.org/simple
Collecting rustcfg==0.0.2
  1 location(s) to search for versions of rustcfg:
  * https://pypi.python.org/simple/rustcfg/
  Getting page https://pypi.python.org/simple/rustcfg/
  Analyzing links from page https://pypi.org/simple/rustcfg/
    Found link https://files.pythonhosted.org/packages/fa/11/73b88d568d2204411324626bf64bb5e79eea21b7f7a995bf624c20f3d407/rustcfg-0.0.2-py3-none-any.whl#sha256=860af681afb326b7dcb168a2ed4ff859f375e6451f2585877d074e2473d8db6d (from https://pypi.org/simple/rustcfg/), version: 0.0.2
    Found link https://files.pythonhosted.org/packages/34/f2/23921ae8f64436deb49e9afeb6069c95b5537f7daccd3f1cd9f4bf7b40cf/rustcfg-0.0.2.tar.gz#sha256=c53bf062040c3be69306cfd04482950f3f5351315c309ce996fc1d34648026a0 (from https://pypi.org/simple/rustcfg/), version: 0.0.2
  Using version 0.0.2 (newest of versions: 0.0.2)
  Created temporary directory: /tmp/pip-unpack-lb_kn927
  Downloading https://files.pythonhosted.org/packages/fa/11/73b88d568d2204411324626bf64bb5e79eea21b7f7a995bf624c20f3d407/rustcfg-0.0.2-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/fa/11/73b88d568d2204411324626bf64bb5e79eea21b7f7a995bf624c20f3d407/rustcfg-0.0.2-py3-none-any.whl#sha256=860af681afb326b7dcb168a2ed4ff859f375e6451f2585877d074e2473d8db6d (from https://pypi.org/simple/rustcfg/)
  Saved /tmp/tmp_n021alw/rustcfg-0.0.2-py3-none-any.whl
  Added rustcfg==0.0.2 from https://files.pythonhosted.org/packages/fa/11/73b88d568d2204411324626bf64bb5e79eea21b7f7a995bf624c20f3d407/rustcfg-0.0.2-py3-none-any.whl#sha256=860af681afb326b7dcb168a2ed4ff859f375e6451f2585877d074e2473d8db6d to build tracker '/tmp/pip-req-tracker-bo8x1ejj'
  Removed rustcfg==0.0.2 from https://files.pythonhosted.org/packages/fa/11/73b88d568d2204411324626bf64bb5e79eea21b7f7a995bf624c20f3d407/rustcfg-0.0.2-py3-none-any.whl#sha256=860af681afb326b7dcb168a2ed4ff859f375e6451f2585877d074e2473d8db6d from build tracker '/tmp/pip-req-tracker-bo8x1ejj'
Skipping rustcfg, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-6o3yfn5c/rustcfg
Removed build tracker '/tmp/pip-req-tracker-bo8x1ejj'