Add minimal example for rust-lang/rust#115430

Author: flash-freezing-lava

.gitignore

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+/target

Cargo.toml

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+[package]
+name = "rust-link-musl-error"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+libgit2-sys = "0.16.0"

Dockerfile

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+FROM rust:1.72.0-alpine3.18
+RUN apk add libgit2-dev zlib-dev libc-dev
+COPY . .
+CMD ["cargo", "build"]

src/main.rs

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+pub struct GitUse {
+    cred: libgit2_sys::git_cred,
+}
+
+fn main() {}