### What did you do? Run the following in the Go Playground: https://play.golang.org/p/92soX8Gyrsn ```go package main func main() {} -- a -- -- a/b -- ``` ### What did you expect to see? It should tell there's a file/dir name conflict in the txtar. ### What did you see instead? ``` Error communicating with remote server. Program exited. ``` ### Addtional info The playground web app emits either of the following runtime errors when there's a file/dir name conflict: ``` cmdFunc error: mkdir /tmp/sandbox253661173/a: not a directory ``` ``` cmdFunc error: error creating temp file "/tmp/sandbox446449006/a": open /tmp/sandbox446449006/a: is a directory ```