Created temporary directory: /tmp/pip-ephem-wheel-cache-ynq5haeu
Created temporary directory: /tmp/pip-req-tracker-s3vr7wjc
Created requirements tracker '/tmp/pip-req-tracker-s3vr7wjc'
Created temporary directory: /tmp/pip-wheel-lfow0wdg
Collecting concrete-mailer==2.15.0
  1 location(s) to search for versions of concrete-mailer:
  * https://pypi.org/simple/concrete-mailer/
  Getting page https://pypi.org/simple/concrete-mailer/
  Analyzing links from page https://pypi.org/simple/concrete-mailer/
    Found link https://files.pythonhosted.org/packages/8d/22/2e53ce3f25b100f3a6a52e8209fdff1424e81b78d5e71c1832638461ec41/concrete-mailer-2.13.0.tar.gz#sha256=ecc0c783c8c587238d406459034bb59660e69292b878feb99fc583a47afd5b3d (from https://pypi.org/simple/concrete-mailer/), version: 2.13.0
    Found link https://files.pythonhosted.org/packages/a8/dd/5ce1094bf16d1b1df46688d8e202e49a08cbed4772c560076d936a5b0a49/concrete_mailer-2.13.0-py3-none-any.whl#sha256=66b827202a11099f935868e5934eb7430dcde389df6959c30b730b5deedf0046 (from https://pypi.org/simple/concrete-mailer/), version: 2.13.0
    Found link https://files.pythonhosted.org/packages/7d/b1/4c63984b8fa4ad138fa0fbc29729c2918bed6a7d8b2a479beeda724436bb/concrete-mailer-2.14.0.tar.gz#sha256=3efa1b82260a6c32a0687b77be96197323340b1166e537d42a6e6a540985a756 (from https://pypi.org/simple/concrete-mailer/), version: 2.14.0
    Found link https://files.pythonhosted.org/packages/63/0c/65ea72c6dbef9e12a490a469baf58dc930d5259c722ec6e06267605ab052/concrete_mailer-2.14.0-py3-none-any.whl#sha256=b40d8c09d6fa71d512de72f550b970b6167ce51904b95c9ffc30ff8d75c29244 (from https://pypi.org/simple/concrete-mailer/), version: 2.14.0
    Found link https://files.pythonhosted.org/packages/7e/b6/9317f74894c754bc32100e17ef98a2cf09deaeea7a1b0d8097f760184613/concrete-mailer-2.15.0.tar.gz#sha256=a8fb140246af023522f6d2e721b56bf4a4372955b483b581fb252f36f669dd70 (from https://pypi.org/simple/concrete-mailer/), version: 2.15.0
    Found link https://files.pythonhosted.org/packages/96/c6/1b490f829ed1b92f7eb3549b1920cf0002f8f334c4f99b70db9492d134a2/concrete_mailer-2.15.0-py3-none-any.whl#sha256=25a54e3f0961853345231884f811ec815ffbbf2f82479c696dae3b15018372f3 (from https://pypi.org/simple/concrete-mailer/), version: 2.15.0
  Using version 2.15.0 (newest of versions: 2.15.0)
  Created temporary directory: /tmp/pip-unpack-agg0lmal
  Downloading https://files.pythonhosted.org/packages/96/c6/1b490f829ed1b92f7eb3549b1920cf0002f8f334c4f99b70db9492d134a2/concrete_mailer-2.15.0-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/96/c6/1b490f829ed1b92f7eb3549b1920cf0002f8f334c4f99b70db9492d134a2/concrete_mailer-2.15.0-py3-none-any.whl#sha256=25a54e3f0961853345231884f811ec815ffbbf2f82479c696dae3b15018372f3 (from https://pypi.org/simple/concrete-mailer/)
  Saved /tmp/tmpoi_r8ctm/concrete_mailer-2.15.0-py3-none-any.whl
  Added concrete-mailer==2.15.0 from https://files.pythonhosted.org/packages/96/c6/1b490f829ed1b92f7eb3549b1920cf0002f8f334c4f99b70db9492d134a2/concrete_mailer-2.15.0-py3-none-any.whl#sha256=25a54e3f0961853345231884f811ec815ffbbf2f82479c696dae3b15018372f3 to build tracker '/tmp/pip-req-tracker-s3vr7wjc'
  Removed concrete-mailer==2.15.0 from https://files.pythonhosted.org/packages/96/c6/1b490f829ed1b92f7eb3549b1920cf0002f8f334c4f99b70db9492d134a2/concrete_mailer-2.15.0-py3-none-any.whl#sha256=25a54e3f0961853345231884f811ec815ffbbf2f82479c696dae3b15018372f3 from build tracker '/tmp/pip-req-tracker-s3vr7wjc'
Skipping concrete-mailer, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-lfow0wdg/concrete-mailer
Removed build tracker '/tmp/pip-req-tracker-s3vr7wjc'