tweag/rust-alpine-mimalloc

---

tweag/rust-alpine-mimalloc.json

{
  "createdAt": "2023-07-24T17:03:09Z",
  "defaultBranch": "master",
  "description": null,
  "fullName": "tweag/rust-alpine-mimalloc",
  "homepage": "",
  "language": "Shell",
  "name": "rust-alpine-mimalloc",
  "pushedAt": "2025-06-14T06:25:28Z",
  "stargazersCount": 37,
  "topics": [],
  "updatedAt": "2025-11-10T22:05:28Z",
  "url": "https://github.com/tweag/rust-alpine-mimalloc"
}

rust-alpine-mimalloc

This Docker image builds upon the alpine:latest image, provides cargo/rustc and replaces the default musl malloc implementation with mimalloc. If you build Rust or C/C++ static executables in this image, the resulting executables will automatically link with mimalloc without needing any special build flags.

Notice: we switched away from rust:alpine and now uses cargo/rust packaged by alpine. Statically linked executables will continue to link against mimalloc as intended, but you need extra command-line arguments to ensure they are indeed static:

$ cargo install --target x86_64-alpine-linux-musl foo

The --target flag is required. The default target is either x86_64-alpine-linux-musl or aarch64-alpine-linux-musl, and can also be extracted from $(rustc -vV | sed -n "s|host: ||p").

Supported & tested archs: amd64 and arm64/v8.

For more details, see this blog post.