Docker Community Forums

Share and learn in the Docker community.

Docker Hub build failing

My image is failing to build on Docker Hub. It builds just fine locally. I’m not understanding the error message:

Step 3/20 : RUN mkdir -p /tmp
—> Running in 5671b8319a05
[91mstandard_init_linux.go:211: exec user process caused “exec format error”
0m
Removing intermediate container 5671b8319a05
The command ‘/bin/sh -c mkdir -p /tmp’ returned a non-zero code: 1

I’m reading this could be an architecture mismatch problem. Is that the problem? What host system does Docker Hub use for building images?