tree 999965d69bdb24a482053bbc39b7abc16aa674ae
parent 92cdce6e960c30a14f0a10642af3ddfac90392a6
author Yong Zhang <zhangyong1025.zy@gmail.com> 1578278889 +0800
committer 冉小龙 <rxl@apache.org> 1578278889 +0800

[Github Action] Clean up space before running backwards compatibility test (#5977)

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*Motivation*

Backwards compatibility test always failed with
`Docker environment should have more than 2GB free disk space`.

*Modifications*

Clean up space before running test.