Created temporary directory: /tmp/pip-ephem-wheel-cache-5guscpzv
Created temporary directory: /tmp/pip-req-tracker-t701xstb
Created requirements tracker '/tmp/pip-req-tracker-t701xstb'
Created temporary directory: /tmp/pip-wheel-n_mlamqx
Collecting udocker==1.1.4
  1 location(s) to search for versions of udocker:
  * https://pypi.org/simple/udocker/
  Getting page https://pypi.org/simple/udocker/
  Analyzing links from page https://pypi.org/simple/udocker/
    Found link https://files.pythonhosted.org/packages/59/6b/559ea1104a3873ef94d0837f64576466dc7c9ea4c70433c4ba72b9364643/udocker-1.1.3.tar.gz#sha256=c66d92dd7a7091d31c04ac376d5b71ea2450e84756e3af43bc3a8d00657a2600 (from https://pypi.org/simple/udocker/), version: 1.1.3
    Found link https://files.pythonhosted.org/packages/d8/c3/1844e7df019a56f529544250c63cdae5ac2f06a420483e6ceeacecb727dd/udocker-1.1.3.post1-py2.py3-none-any.whl#sha256=d41230089acb0b0e2441f22c7e91746104cee47b04505c322b306452e6d45a53 (from https://pypi.org/simple/udocker/), version: 1.1.3.post1
    Found link https://files.pythonhosted.org/packages/04/ca/8dbe98d3b1b90099f4cad3f647d4722e912d87ceed4563cdfe182eb8d2c3/udocker-1.1.3.post1.tar.gz#sha256=ec1bd483776aaab101929e839f1e8d2a87464a3e2f0c35a117bdad40b60767be (from https://pypi.org/simple/udocker/), version: 1.1.3.post1
    Found link https://files.pythonhosted.org/packages/92/19/6c66558b821aff9d6f85003829ab13c14d340d2e83e6a6b3e7ec5c94dd97/udocker-1.1.4-py2.py3-none-any.whl#sha256=bfb3e1ebdb682a4575f70b9efd5da667f4e16e1e5fe64560c48549636f4b439d (from https://pypi.org/simple/udocker/), version: 1.1.4
    Found link https://files.pythonhosted.org/packages/ef/ed/6d34c874e245717435dfa9592e327af3aa2f086d279b190b0629581553c6/udocker-1.1.4.tar.gz#sha256=f12adca7d52cec6e6e91f5ecaa690c47128c5768b9591c4595750d70fbad6df0 (from https://pypi.org/simple/udocker/), version: 1.1.4
  Using version 1.1.4 (newest of versions: 1.1.4)
  Created temporary directory: /tmp/pip-unpack-7v4ky4lj
  Downloading https://files.pythonhosted.org/packages/92/19/6c66558b821aff9d6f85003829ab13c14d340d2e83e6a6b3e7ec5c94dd97/udocker-1.1.4-py2.py3-none-any.whl (78kB)
  Downloading from URL https://files.pythonhosted.org/packages/92/19/6c66558b821aff9d6f85003829ab13c14d340d2e83e6a6b3e7ec5c94dd97/udocker-1.1.4-py2.py3-none-any.whl#sha256=bfb3e1ebdb682a4575f70b9efd5da667f4e16e1e5fe64560c48549636f4b439d (from https://pypi.org/simple/udocker/)
  Saved /tmp/tmpf4sf__nn/udocker-1.1.4-py2.py3-none-any.whl
  Added udocker==1.1.4 from https://files.pythonhosted.org/packages/92/19/6c66558b821aff9d6f85003829ab13c14d340d2e83e6a6b3e7ec5c94dd97/udocker-1.1.4-py2.py3-none-any.whl#sha256=bfb3e1ebdb682a4575f70b9efd5da667f4e16e1e5fe64560c48549636f4b439d to build tracker '/tmp/pip-req-tracker-t701xstb'
  Removed udocker==1.1.4 from https://files.pythonhosted.org/packages/92/19/6c66558b821aff9d6f85003829ab13c14d340d2e83e6a6b3e7ec5c94dd97/udocker-1.1.4-py2.py3-none-any.whl#sha256=bfb3e1ebdb682a4575f70b9efd5da667f4e16e1e5fe64560c48549636f4b439d from build tracker '/tmp/pip-req-tracker-t701xstb'
Skipping udocker, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-n_mlamqx/udocker
Removed build tracker '/tmp/pip-req-tracker-t701xstb'