Created temporary directory: /tmp/pip-ephem-wheel-cache-gzvdhy9b
Created temporary directory: /tmp/pip-req-tracker-bj2tjg12
Created requirements tracker '/tmp/pip-req-tracker-bj2tjg12'
Created temporary directory: /tmp/pip-wheel-yho3kr7c
Collecting containerd==1.2.1
  1 location(s) to search for versions of containerd:
  * https://pypi.org/simple/containerd/
  Getting page https://pypi.org/simple/containerd/
  Analyzing links from page https://pypi.org/simple/containerd/
    Found link https://files.pythonhosted.org/packages/9b/90/7e22d9aa397b58039e0b9457e7142e4a0592ab3878613b8522dc27fa1bb2/containerd-1.2.1-py3-none-any.whl#sha256=dfa7481ec01440c33dfd517bc1d5403306d2352166fd54c4c61425afca364085 (from https://pypi.org/simple/containerd/), version: 1.2.1
    Found link https://files.pythonhosted.org/packages/a5/c1/bdca69c8d53bb8c722762b5188ebb11868f11831b4897abeb80511b0bf6b/containerd-1.2.1.tar.gz#sha256=dbd8e87176030250338a5d97e584fed443fc4284d5eef978e02a7386ccebd544 (from https://pypi.org/simple/containerd/), version: 1.2.1
    Found link https://files.pythonhosted.org/packages/69/c9/8407cad510a448e762842c0920e7e1e65b12a66801630ae85e61f80f8c0a/containerd-1.3.1-py3-none-any.whl#sha256=6638adc2ce3b5c40efcaee248b92c36136e063ea6a3e05f13d93f4f049ab3b79 (from https://pypi.org/simple/containerd/), version: 1.3.1
    Found link https://files.pythonhosted.org/packages/9e/cd/e2102ca25096f60e13639dfa110dfd20a0675f7fb290a39f8458946d8c12/containerd-1.3.1.tar.gz#sha256=529508e3a2d8c5f6f0554582e299b56c95fcba37b5a38bbdde13c00a60ec4076 (from https://pypi.org/simple/containerd/), version: 1.3.1
  Using version 1.2.1 (newest of versions: 1.2.1)
  Created temporary directory: /tmp/pip-unpack-mgvjb1my
  Downloading https://files.pythonhosted.org/packages/9b/90/7e22d9aa397b58039e0b9457e7142e4a0592ab3878613b8522dc27fa1bb2/containerd-1.2.1-py3-none-any.whl (115kB)
  Downloading from URL https://files.pythonhosted.org/packages/9b/90/7e22d9aa397b58039e0b9457e7142e4a0592ab3878613b8522dc27fa1bb2/containerd-1.2.1-py3-none-any.whl#sha256=dfa7481ec01440c33dfd517bc1d5403306d2352166fd54c4c61425afca364085 (from https://pypi.org/simple/containerd/)
  Saved /tmp/tmpnu7rky46/containerd-1.2.1-py3-none-any.whl
  Added containerd==1.2.1 from https://files.pythonhosted.org/packages/9b/90/7e22d9aa397b58039e0b9457e7142e4a0592ab3878613b8522dc27fa1bb2/containerd-1.2.1-py3-none-any.whl#sha256=dfa7481ec01440c33dfd517bc1d5403306d2352166fd54c4c61425afca364085 to build tracker '/tmp/pip-req-tracker-bj2tjg12'
  Removed containerd==1.2.1 from https://files.pythonhosted.org/packages/9b/90/7e22d9aa397b58039e0b9457e7142e4a0592ab3878613b8522dc27fa1bb2/containerd-1.2.1-py3-none-any.whl#sha256=dfa7481ec01440c33dfd517bc1d5403306d2352166fd54c4c61425afca364085 from build tracker '/tmp/pip-req-tracker-bj2tjg12'
Skipping containerd, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-yho3kr7c/containerd
Removed build tracker '/tmp/pip-req-tracker-bj2tjg12'