Created temporary directory: /tmp/pip-ephem-wheel-cache-58iqti2z
Created temporary directory: /tmp/pip-req-tracker-8hjbsh9_
Created requirements tracker '/tmp/pip-req-tracker-8hjbsh9_'
Created temporary directory: /tmp/pip-wheel-0el_tya7
Collecting jupyterlab-heroku==0.2.1
  1 location(s) to search for versions of jupyterlab-heroku:
  * https://pypi.org/simple/jupyterlab-heroku/
  Getting page https://pypi.org/simple/jupyterlab-heroku/
  Analyzing links from page https://pypi.org/simple/jupyterlab-heroku/
    Found link https://files.pythonhosted.org/packages/53/57/9d75dfddb4cdc4e1b0bb7c5e7387f78383e39bb7ac17e0d24729fd7f7946/jupyterlab_heroku-0.1.0-py3-none-any.whl#sha256=a1d4974316c02a7669ea536a9fefaf77960f588a561d32149cfd9e80bc72069f (from https://pypi.org/simple/jupyterlab-heroku/), version: 0.1.0
    Found link https://files.pythonhosted.org/packages/95/c7/6e5c0a46f54f3eb23a62ff6e13f0fab584462cc3188e382252b9fee46646/jupyterlab_heroku-0.1.0.tar.gz#sha256=2eedd9cc1531722027d28a4a122da8b6388d4545d0aa987efcebbadfd98a1d6d (from https://pypi.org/simple/jupyterlab-heroku/), version: 0.1.0
    Found link https://files.pythonhosted.org/packages/de/2d/98cfef039434a808b96ac9d4dc763134e715824b0411dd2eeb189f90fa0e/jupyterlab_heroku-0.2.0-py3-none-any.whl#sha256=40f0ee8153bb7effced97f799a1484a7e91011883282944f65f30058dc83391a (from https://pypi.org/simple/jupyterlab-heroku/), version: 0.2.0
    Found link https://files.pythonhosted.org/packages/d1/01/d0901178f759276786573fcca86bebb705bb20c91c91f68dc948658f6d7f/jupyterlab_heroku-0.2.0.tar.gz#sha256=829b1ca9fa999a9605c78d8f3c76a5fcbf3ed2fecca966290f57fbdcfffc26dc (from https://pypi.org/simple/jupyterlab-heroku/), version: 0.2.0
    Found link https://files.pythonhosted.org/packages/59/e8/f3bc31b0740a5664fc384434b6dd61c5928a4683aa68dee1e04692e9c31d/jupyterlab_heroku-0.2.1-py3-none-any.whl#sha256=7f492470802a5d94331f7ca7440251b7ef3278977bc6d323b164cd890610f4c8 (from https://pypi.org/simple/jupyterlab-heroku/), version: 0.2.1
    Found link https://files.pythonhosted.org/packages/5f/2e/0c9fe9ca8ec08c37ba0ac4267618fae274e88862bc112c7d337390bbe573/jupyterlab_heroku-0.2.1.tar.gz#sha256=dd50327b87b282ef2c8bf4b725bb104b363f68bdff5311fbab35584f629df03c (from https://pypi.org/simple/jupyterlab-heroku/), version: 0.2.1
  Using version 0.2.1 (newest of versions: 0.2.1)
  Created temporary directory: /tmp/pip-unpack-uzcas93e
  Downloading https://files.pythonhosted.org/packages/59/e8/f3bc31b0740a5664fc384434b6dd61c5928a4683aa68dee1e04692e9c31d/jupyterlab_heroku-0.2.1-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/59/e8/f3bc31b0740a5664fc384434b6dd61c5928a4683aa68dee1e04692e9c31d/jupyterlab_heroku-0.2.1-py3-none-any.whl#sha256=7f492470802a5d94331f7ca7440251b7ef3278977bc6d323b164cd890610f4c8 (from https://pypi.org/simple/jupyterlab-heroku/)
  Saved /tmp/tmpcln6__53/jupyterlab_heroku-0.2.1-py3-none-any.whl
  Added jupyterlab-heroku==0.2.1 from https://files.pythonhosted.org/packages/59/e8/f3bc31b0740a5664fc384434b6dd61c5928a4683aa68dee1e04692e9c31d/jupyterlab_heroku-0.2.1-py3-none-any.whl#sha256=7f492470802a5d94331f7ca7440251b7ef3278977bc6d323b164cd890610f4c8 to build tracker '/tmp/pip-req-tracker-8hjbsh9_'
  Removed jupyterlab-heroku==0.2.1 from https://files.pythonhosted.org/packages/59/e8/f3bc31b0740a5664fc384434b6dd61c5928a4683aa68dee1e04692e9c31d/jupyterlab_heroku-0.2.1-py3-none-any.whl#sha256=7f492470802a5d94331f7ca7440251b7ef3278977bc6d323b164cd890610f4c8 from build tracker '/tmp/pip-req-tracker-8hjbsh9_'
Skipping jupyterlab-heroku, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-0el_tya7/jupyterlab-heroku
Removed build tracker '/tmp/pip-req-tracker-8hjbsh9_'