Created temporary directory: /tmp/pip-ephem-wheel-cache-0fsm3acg
Created temporary directory: /tmp/pip-req-tracker-ihyjt9lt
Created requirements tracker '/tmp/pip-req-tracker-ihyjt9lt'
Created temporary directory: /tmp/pip-wheel-wepje29p
Collecting dagster==0.5.8rc0
  1 location(s) to search for versions of dagster:
  * https://pypi.org/simple/dagster/
  Getting page https://pypi.org/simple/dagster/
  Analyzing links from page https://pypi.org/simple/dagster/
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    Found link https://files.pythonhosted.org/packages/85/ad/20e151d6ddc8e449ed620afb0fcd9b04d4fb383c6d7f5d7c3318962204ca/dagster-0.5.5.tar.gz#sha256=ed0c91faa7b284e28c449419588e99f3ad12e1b16c31b5ab0f857395530f1f3d (from https://pypi.org/simple/dagster/), version: 0.5.5
    Found link https://files.pythonhosted.org/packages/f2/1b/25b76d87cb4fb3501f0acd2b7ba2e0b392eb862552376f4a64b39c9dc1ab/dagster-0.5.6rc2-py3-none-any.whl#sha256=d2ada50d4bafaaf027aea470e9ac18050f2cd4f9427e97d92338a9ac55004a63 (from https://pypi.org/simple/dagster/), version: 0.5.6rc2
    Found link https://files.pythonhosted.org/packages/a6/4b/c6c0e9e4ebabfa5c23e8c9b35ce16c3a361fe5c1e4326f1c911d12832ad6/dagster-0.5.6rc2.tar.gz#sha256=d5993b903a24a1fd00e2711264669cbc5019227b13336965254512f0daa5a8b8 (from https://pypi.org/simple/dagster/), version: 0.5.6rc2
    Found link https://files.pythonhosted.org/packages/5b/4f/36a0e1e460ec4836ff35868ac8f1a38b407dec0d0537d8b2f4e9886b943e/dagster-0.5.6-py3-none-any.whl#sha256=d2eaf030c9655fe7d397a4934770b2bdba6396d839c4cd4d9175d635656fd4cc (from https://pypi.org/simple/dagster/), version: 0.5.6
    Found link https://files.pythonhosted.org/packages/6f/e3/dab3b20deb58d767b19390ad269bb9aeebd4fa151052f5b744c78a4bac12/dagster-0.5.6.tar.gz#sha256=f957a9bf9535a0c86278c0e810276b99536eda53cfc1968a2a537e61143b0f2b (from https://pypi.org/simple/dagster/), version: 0.5.6
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    Found link https://files.pythonhosted.org/packages/85/74/772711093423cb31af9c72b46be48f0af138f38d5dd6aed1736fe66f88e9/dagster-0.5.7rc0.tar.gz#sha256=650117aa5f2c49babba4bce6d6ff17aaad2e16a91acb0102387f7018231c5610 (from https://pypi.org/simple/dagster/), version: 0.5.7rc0
    Found link https://files.pythonhosted.org/packages/2c/1d/b94c302c1971f49e142aa8eca210b0fd3d673d38f93703b196a8ee1df418/dagster-0.5.7-py3-none-any.whl#sha256=f88dc2c3928e5e9ee9e35c13877a860c111cae805e2eae012a5c3bee0c34aba2 (from https://pypi.org/simple/dagster/), version: 0.5.7
    Found link https://files.pythonhosted.org/packages/29/05/663e3a65601d785bfac7b48da00dd490d683e46429a6677d845335c063b9/dagster-0.5.7.tar.gz#sha256=d14db3a28ab6fa6ddb0c125a2b94c986a46b5a6eeb3d6a226535b373d69b6969 (from https://pypi.org/simple/dagster/), version: 0.5.7
    Found link https://files.pythonhosted.org/packages/78/bd/88671b2a5bdf50ff668c10489e2291b9e51d248f6912ed21f206035e9649/dagster-0.5.8rc0-py3-none-any.whl#sha256=4724629614b2cc0a158083c7a38c2ce1a4927d59daf32735600b9b7e22c6150d (from https://pypi.org/simple/dagster/), version: 0.5.8rc0
    Found link https://files.pythonhosted.org/packages/79/32/bb1be1193206c7f065894a9a9de8d724778608cd608ffde61cf384e83b04/dagster-0.5.8rc0.tar.gz#sha256=87b3f08cc7cdeccb723740b670ef29e5b2ac41563590bdf91668dc6628da1ee1 (from https://pypi.org/simple/dagster/), version: 0.5.8rc0
    Found link https://files.pythonhosted.org/packages/77/9e/7bc5bc996fe4bd4299a157ff43614bd1fa0f3041f5f7865d24f6c40ca4f2/dagster-0.5.8-py3-none-any.whl#sha256=319102ab00c3d4be05febc02bc1a0c632a4c8ee6879455012c5b374672436f1e (from https://pypi.org/simple/dagster/), version: 0.5.8
    Found link https://files.pythonhosted.org/packages/66/e5/9c2d11a1b7db0b45928af1ab438657c560680166a7762c796f140acc6d57/dagster-0.5.8.tar.gz#sha256=6327445d2892cbd9e2717c4595a8e38edfad5f47b13a00365eb0c2c6230e5a68 (from https://pypi.org/simple/dagster/), version: 0.5.8
  Using version 0.5.8rc0 (newest of versions: 0.5.8rc0)
  Created temporary directory: /tmp/pip-unpack-8ni0zvma
  Downloading https://files.pythonhosted.org/packages/78/bd/88671b2a5bdf50ff668c10489e2291b9e51d248f6912ed21f206035e9649/dagster-0.5.8rc0-py3-none-any.whl (287kB)
  Downloading from URL https://files.pythonhosted.org/packages/78/bd/88671b2a5bdf50ff668c10489e2291b9e51d248f6912ed21f206035e9649/dagster-0.5.8rc0-py3-none-any.whl#sha256=4724629614b2cc0a158083c7a38c2ce1a4927d59daf32735600b9b7e22c6150d (from https://pypi.org/simple/dagster/)
  Saved /tmp/tmpwtlc9ci_/dagster-0.5.8rc0-py3-none-any.whl
  Added dagster==0.5.8rc0 from https://files.pythonhosted.org/packages/78/bd/88671b2a5bdf50ff668c10489e2291b9e51d248f6912ed21f206035e9649/dagster-0.5.8rc0-py3-none-any.whl#sha256=4724629614b2cc0a158083c7a38c2ce1a4927d59daf32735600b9b7e22c6150d to build tracker '/tmp/pip-req-tracker-ihyjt9lt'
  Removed dagster==0.5.8rc0 from https://files.pythonhosted.org/packages/78/bd/88671b2a5bdf50ff668c10489e2291b9e51d248f6912ed21f206035e9649/dagster-0.5.8rc0-py3-none-any.whl#sha256=4724629614b2cc0a158083c7a38c2ce1a4927d59daf32735600b9b7e22c6150d from build tracker '/tmp/pip-req-tracker-ihyjt9lt'
Skipping dagster, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-wepje29p/dagster
Removed build tracker '/tmp/pip-req-tracker-ihyjt9lt'