Created temporary directory: /tmp/pip-ephem-wheel-cache-vj2_78pa
Created temporary directory: /tmp/pip-req-tracker-bzuxnzwp
Created requirements tracker '/tmp/pip-req-tracker-bzuxnzwp'
Created temporary directory: /tmp/pip-wheel-jn_wgg8l
Collecting perfcounters==2.0.0
  1 location(s) to search for versions of perfcounters:
  * https://pypi.org/simple/perfcounters/
  Getting page https://pypi.org/simple/perfcounters/
  Analyzing links from page https://pypi.org/simple/perfcounters/
    Found link https://files.pythonhosted.org/packages/2f/ef/8bc60d68ffb842a7212b2503c1677561e3ab0a6af10f4056006edeefda78/perfcounters-1.0.0-py3-none-any.whl#sha256=58128dccd011a130dab84c21aa36ef03799027c663226acfa14f3c7f371ca533 (from https://pypi.org/simple/perfcounters/), version: 1.0.0
    Found link https://files.pythonhosted.org/packages/7b/6d/2a25ad5bb2968b2e49e2fd7d5300a162c1793a3347ec09d188a49e2fe799/perfcounters-1.0.0.tar.gz#sha256=5056b6aead051dcda27422db6e61b56007184cfa1fa3a0c97b94c170d520dce3 (from https://pypi.org/simple/perfcounters/), version: 1.0.0
    Found link https://files.pythonhosted.org/packages/82/02/1383e1d80e9681e451130687b6bc5cfa327903021ed12bbe04437df49ed1/perfcounters-1.0.1-py3-none-any.whl#sha256=a54b39cd10c2e7464a417fcbdfb48797a46b910ae1a2ced94979d0316eff62d3 (from https://pypi.org/simple/perfcounters/), version: 1.0.1
    Found link https://files.pythonhosted.org/packages/ed/b0/b0ddeb3c3dfdf479deb71a40d060f11e9c42294d5952b46dcd1f046c431b/perfcounters-1.0.1.tar.gz#sha256=80a854862a719d513b5db66cf487748c12afe09e739682c10482b9f4b8d7f7a6 (from https://pypi.org/simple/perfcounters/), version: 1.0.1
    Found link https://files.pythonhosted.org/packages/b2/11/9cbcd7249d357f09fc055318983a71459c397cfbba2f358122b8ad96a0fe/perfcounters-1.0.2-py3-none-any.whl#sha256=954fbfe9a42f3f13510e3aad0207a78126a2e12777895f26874ec47b3ba367de (from https://pypi.org/simple/perfcounters/), version: 1.0.2
    Found link https://files.pythonhosted.org/packages/d4/8f/c8e3e18fe16f7f64e130b47ba89c052629b4facaee6e7a21bab4e12371d9/perfcounters-1.0.2.tar.gz#sha256=92dd74f4456c7291c4795132d1322f833ae5f2dc5110939af7aa4977dcf1b253 (from https://pypi.org/simple/perfcounters/), version: 1.0.2
    Found link https://files.pythonhosted.org/packages/c3/ad/c0524950b9c10e6ef20366515bae82f6b6f277f055fd3eb5331187a22512/perfcounters-1.0.3-py3-none-any.whl#sha256=9c4c557d55e05e0eff28e5a161cfd4e258edabe4759d428e3250d027d3bac3b3 (from https://pypi.org/simple/perfcounters/), version: 1.0.3
    Found link https://files.pythonhosted.org/packages/e2/a8/cc1599ffc08e4645e22fff1fbccf5a30e474dbf6f8352f39b005e1be1110/perfcounters-1.0.3.tar.gz#sha256=7ecd4b0168ae0089ef4ecb9a9860effb79a4248cc5fff94a8d432ae45444d0f5 (from https://pypi.org/simple/perfcounters/), version: 1.0.3
    Found link https://files.pythonhosted.org/packages/ff/e4/251e421d8acb9c8485e8da69927bf75602e74b578c38ea1ae8cc7c662923/perfcounters-1.0.5-py3-none-any.whl#sha256=3c2c42e50e1bcfa57c55a61c2d480ab8df974e6c40d3af091c69b2ddb7db1ba1 (from https://pypi.org/simple/perfcounters/), version: 1.0.5
    Found link https://files.pythonhosted.org/packages/b5/40/67ba36cdf8cf2f4874b1af9e9dbabf1da7efda95173f9c46347381a5670e/perfcounters-1.0.5.tar.gz#sha256=3392f9f7ed954d388d2678a8a16c61419994a6a154dd46d6037d0ff3d32b1e4c (from https://pypi.org/simple/perfcounters/), version: 1.0.5
    Found link https://files.pythonhosted.org/packages/24/9a/559f5fd377c262ee1e27a7901fdb97b3b6084c7ecaf607876fd2190f199b/perfcounters-1.0.6-py3-none-any.whl#sha256=ec7a51107adee6bacf3d3c68f1d3284136e9c294d55df9e5248afa72b21b907d (from https://pypi.org/simple/perfcounters/), version: 1.0.6
    Found link https://files.pythonhosted.org/packages/57/b0/d0b898b2a8fb73951c40928cbc64ce7fb1db7caf362e7e95f6debf34744d/perfcounters-1.0.6.tar.gz#sha256=9b608d4c85b12c6f7e68446896448be83005ebf964a37d2d17d0fad0e3cb6f01 (from https://pypi.org/simple/perfcounters/), version: 1.0.6
    Found link https://files.pythonhosted.org/packages/51/e0/b79f5781a2bcc074042b5770ab06f9c2277ac67d41d96447c7bc4ac961bd/perfcounters-2.0.0-py3-none-any.whl#sha256=0b64730a5226a97c5439fbd4237c31e37780f100d5f66cd163d8ba9001561c70 (from https://pypi.org/simple/perfcounters/), version: 2.0.0
    Found link https://files.pythonhosted.org/packages/2b/e6/e0601bf5bc85b935978be0e1b66b23e1bedc47e1bf91a9225ec4e90bb5aa/perfcounters-2.0.0.tar.gz#sha256=8e12ab5d82b9fed1da302d53b4cb9723bc72408bcd1a2ea9f71e8259150585ff (from https://pypi.org/simple/perfcounters/), version: 2.0.0
  Using version 2.0.0 (newest of versions: 2.0.0)
  Created temporary directory: /tmp/pip-unpack-sr1gzymh
  Downloading https://files.pythonhosted.org/packages/51/e0/b79f5781a2bcc074042b5770ab06f9c2277ac67d41d96447c7bc4ac961bd/perfcounters-2.0.0-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/51/e0/b79f5781a2bcc074042b5770ab06f9c2277ac67d41d96447c7bc4ac961bd/perfcounters-2.0.0-py3-none-any.whl#sha256=0b64730a5226a97c5439fbd4237c31e37780f100d5f66cd163d8ba9001561c70 (from https://pypi.org/simple/perfcounters/)
  Saved /tmp/tmpyxc7pky8/perfcounters-2.0.0-py3-none-any.whl
  Added perfcounters==2.0.0 from https://files.pythonhosted.org/packages/51/e0/b79f5781a2bcc074042b5770ab06f9c2277ac67d41d96447c7bc4ac961bd/perfcounters-2.0.0-py3-none-any.whl#sha256=0b64730a5226a97c5439fbd4237c31e37780f100d5f66cd163d8ba9001561c70 to build tracker '/tmp/pip-req-tracker-bzuxnzwp'
  Removed perfcounters==2.0.0 from https://files.pythonhosted.org/packages/51/e0/b79f5781a2bcc074042b5770ab06f9c2277ac67d41d96447c7bc4ac961bd/perfcounters-2.0.0-py3-none-any.whl#sha256=0b64730a5226a97c5439fbd4237c31e37780f100d5f66cd163d8ba9001561c70 from build tracker '/tmp/pip-req-tracker-bzuxnzwp'
Skipping perfcounters, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-jn_wgg8l/perfcounters
Removed build tracker '/tmp/pip-req-tracker-bzuxnzwp'