"Out of Memory" in Docker preview guest on M1 Mac Mini #4485
Description
Describe the bug
All the nix commands I've tried with both the docker LnL7/nix and nixos/nix images fail with out of memory errors using the Docker Preview on an M1 Mac Mini.
EDIT: Note that while my examples show me mounting the CWD to /nixpkgs, this is not necessary to reproduce the bug. Either of these commands will have the same issue without the volume mount:
docker run -it nixos/nix nix-env --version
docker run -it nixos/nix nix eval "(import <nixpkgs> {}).lib.version"
docker run -it lnl7/nix nix eval "(import <nixpkgs> {}).lib.version"
docker run lnl7/nix nix eval "(import <nixpkgs> {}).lib.version"
docker run nixos/nix nix eval "(import <nixpkgs> {}).lib.version"
Steps To Reproduce
Install the current Docker M1 Tech Preview:
https://docs.docker.com/docker-for-mac/apple-m1/
https://desktop.docker.com/mac/m1preview/Docker-AppleSilicon-Preview7.dmg
Execute this command:
docker run -v $(pwd):/nixpkgs -it nixos/nix nix eval "(import <nixpkgs> {}).lib.version"
You'll see:
WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested
GC Warning: Failed to expand heap by 402653184 bytes
GC Warning: Failed to expand heap by 557056 bytes
GC Warning: Failed to expand heap by 294912 bytes
GC Warning: Out of Memory! Heap size: 0 MiB. Returning NULL!
error: out of memory
You can try increasing the memory, but I got the same error up to 6gb.
Expected behavior
"21.03pre266259.2fcf614ea38"
nix-env --version output
$ docker run -v $(pwd):/nixpkgs -m 1gb -it nixos/nix nix-env --version ~/Projects/nixpkgs
WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested
GC Warning: Failed to expand heap by 402653184 bytes
nix-env (Nix) 2.3.10
Additional context
My suspicion is that there is an underlying docker issue, but I still felt it was worth officially documenting it.