Debug travis-ci
Debug travis-ci

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