So recently I ran into an issue doing cross compilation for linux x86_64 on my M2 MacBook. So I decided to spin up an Ubuntu 22.04 x86_64 VM on EC2. Now I'm running into a new problem that I didn't anticipate which is docker daemon socket permission errors. I have added my local user account to the docker group and can successfully run

docker run hello-world

without root. Why can't I get docker builds to work as an unprivileged user when running

pants package

? I tried searching in Slack and couldn't find threads that matched this issue.

15:50:32.76 [ERROR] 1 Exception encountered:

Engine traceback:
  in `package` goal

ProcessExecutionFailure: Process 'Building docker image docker:latest' failed with exit code 1.
stdout:

stderr:
ERROR: permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fvar%2Frun%2Fdocker.sock/_ping": dial unix /var/run/docker.sock: connect: permission denied

$ ls -lsa /var/run/docker.sock
0 srw-rw---- 1 root docker 0 Feb 28 00:15 /var/run/docker.sock

Thanks! I got the same issue and your comment unblocked me 🙂 I first added

use_buildx = true

and deleted the cache -> this solved the error message I had but I had a new error Then I removed the

use_buildx = true

and it worked. So it is probable that

buildx

had nothing to do with it, and the solution to my problem was just removing the cache