Debug travis-ci
Debug travis-ci

yvxiang/coverage_for_bfs,yvxiang/coverage_for_bfs,bluebore/dfs,myawan/bfs-1,00k/ToyDFS,linyvxiang/dfs,bluebore/bfs,imotai/bfs,baidu/bfs,00k/ToyDFS,myawan/bfs-1,yvxiang/dfs,baidu/bfs,yvxiang/coverage_for_bfs,bluebore/dfs,lylei/dfs,lylei/dfs,baidu/bfs,yvxiang/dfs,myawan/bfs-1,yvxiang/dfs,bluebore/bfs,imotai/bfs,yvxiang/dfs,lylei/dfs,bluebore/bfs,myawan/bfs-1,baidu/bfs,imotai/bfs,linyvxiang/dfs,lylei/dfs,yvxiang/coverage_for_bfs,linyvxiang/dfs,bluebore/dfs