Bug fixes

• Running bake with multiple compose files now merges targets correctly #134
• Fix bug when building a Dockerfile from stdin (build -f -) #153
• Handle copying unix sockets instead of erroring #155 moby/buildkit#1144

Contributors

Tõnis Tiigi
Tibor Vass
Grace Noah
Francesco Gianni
Dmytro Makovey

https://travis-ci.org/docker/buildx/builds/590530929