No C linker for the Rust build

What it means

cargo needs a C compiler and linker (cc), which are not in the image.

The error happened while installing dependencies or building the project. The new version was not started, the current one keeps running.

Typical causes

• The install or build command exited with an error
• Out of memory or disk space
• The language or package manager version is not the one the project expects

How to fix it on mevcore

Use the full rust image (not -slim/-alpine without build-base) or install build-essential (apk add build-base on Alpine) in the Dockerfile.

1. 1 Open the app in the mevcore panel: the Problems card on the overview shows this error and the log line it was found in.
2. 2 After the fix, deploy again. If it fails again, the log ends with [mevcore] lines naming the new error code.
3. 3 The "Ask AI" button next to the error prepares a request for ChatGPT or Claude: the error code, the end of the log without secrets and the app settings.

For an AI assistant

The same in English: paste it together with the log into the AI chat.

mevcore error code: install.rust_linker_missing
phase: install and build
diagnosis: No C linker for the Rust build
platform hint: cargo needs a C compiler and linker (cc), which are not in the image. Use the full rust image (not -slim/-alpine without build-base) or install build-essential (apk add build-base on Alpine) in the Dockerfile.
platform docs: https://mevcore.com/llms-full.txt

Related errors

• install.rust_compile Crate <crate> did not compile
• install.rust_version A newer Rust is needed (<required>)
• install.rust_openssl openssl-sys needs the OpenSSL headers