Created temporary directory: /tmp/pip-ephem-wheel-cache-z018tdpy
Created temporary directory: /tmp/pip-req-tracker-u2c3nxhc
Created requirements tracker '/tmp/pip-req-tracker-u2c3nxhc'
Created temporary directory: /tmp/pip-wheel-ij3n8w8d
Collecting needlestack==0.1.0rc0
  1 location(s) to search for versions of needlestack:
  * https://pypi.org/simple/needlestack/
  Getting page https://pypi.org/simple/needlestack/
  Analyzing links from page https://pypi.org/simple/needlestack/
    Found link https://files.pythonhosted.org/packages/2c/85/8cc2fe6ed2033a5265c176e1e5de4f1b94b55f10f11ea2f2b14abc1c66d9/needlestack-0.0.7-py3-none-any.whl#sha256=0f986d645a44fbcc34ee79a6dfc2fbbfa2957c61abb983a76a9bfdc1dd6ff9bb (from https://pypi.org/simple/needlestack/), version: 0.0.7
    Found link https://files.pythonhosted.org/packages/da/5b/18776aba07c8ad1b09294d35c4b1522d509f28436a9132133283930872eb/needlestack-0.0.7.tar.gz#sha256=dbf87436de299938380287a415e7d487ff7158dabe3374a25201660606a11a0c (from https://pypi.org/simple/needlestack/), version: 0.0.7
    Found link https://files.pythonhosted.org/packages/7e/b3/355c5c9f3a01c8c550233c3096cb05e10c662baaaaa4496ecab540ab745c/needlestack-0.1.0rc0-py3-none-any.whl#sha256=64e916a59c8eb961e842caf5bc24b71a36d16ddcd5dca21b3abd5e060ae0d988 (from https://pypi.org/simple/needlestack/), version: 0.1.0rc0
    Found link https://files.pythonhosted.org/packages/8c/19/7bf73fb6031c954660f12c1f5810398804bd1fd24421205bec149c139c8e/needlestack-0.1.0rc0.tar.gz#sha256=1565a5ff3ec747cdfeb2eb0a46950ce4301e9ee9a6208e1e7f00375cf8d4c896 (from https://pypi.org/simple/needlestack/), version: 0.1.0rc0
  Using version 0.1.0rc0 (newest of versions: 0.1.0rc0)
  Created temporary directory: /tmp/pip-unpack-szs0e486
  Downloading https://files.pythonhosted.org/packages/7e/b3/355c5c9f3a01c8c550233c3096cb05e10c662baaaaa4496ecab540ab745c/needlestack-0.1.0rc0-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/7e/b3/355c5c9f3a01c8c550233c3096cb05e10c662baaaaa4496ecab540ab745c/needlestack-0.1.0rc0-py3-none-any.whl#sha256=64e916a59c8eb961e842caf5bc24b71a36d16ddcd5dca21b3abd5e060ae0d988 (from https://pypi.org/simple/needlestack/)
  Saved /tmp/tmp72d9l887/needlestack-0.1.0rc0-py3-none-any.whl
  Added needlestack==0.1.0rc0 from https://files.pythonhosted.org/packages/7e/b3/355c5c9f3a01c8c550233c3096cb05e10c662baaaaa4496ecab540ab745c/needlestack-0.1.0rc0-py3-none-any.whl#sha256=64e916a59c8eb961e842caf5bc24b71a36d16ddcd5dca21b3abd5e060ae0d988 to build tracker '/tmp/pip-req-tracker-u2c3nxhc'
  Removed needlestack==0.1.0rc0 from https://files.pythonhosted.org/packages/7e/b3/355c5c9f3a01c8c550233c3096cb05e10c662baaaaa4496ecab540ab745c/needlestack-0.1.0rc0-py3-none-any.whl#sha256=64e916a59c8eb961e842caf5bc24b71a36d16ddcd5dca21b3abd5e060ae0d988 from build tracker '/tmp/pip-req-tracker-u2c3nxhc'
Skipping needlestack, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-ij3n8w8d/needlestack
Removed build tracker '/tmp/pip-req-tracker-u2c3nxhc'