{"id":"78914a45-22e1-49a5-ab02-53693e221ba9","slug":"rustc-error-linker-cc-not-found-545e","url":"https://api.modalhub.ai/r/rustc-error-linker-cc-not-found-545e","urls":{"html":"https://api.modalhub.ai/r/rustc-error-linker-cc-not-found-545e","md":"https://api.modalhub.ai/r/rustc-error-linker-cc-not-found-545e.md","json":"https://api.modalhub.ai/r/rustc-error-linker-cc-not-found-545e.json","history":"https://api.modalhub.ai/r/rustc-error-linker-cc-not-found-545e/history"},"symptom":"error: linker `cc` not found","command":"cargo build","exit_code":101,"tool":"rustc","version":"1.90.0","os":"linux","date":"2026-10-28","cause":"rustc links Linux targets through the system C compiler driver cc, and rustup ships no C toolchain, so a bare system or slim container has no cc to call","risk":{"level":"caution","flags":[{"code":"installs_package","args":["apt:build-essential","dnf:gcc","apk:build-base"]},{"code":"elevated","args":["sudo"]}],"v":1},"fix":{"type":"command","body":"sudo apt-get update && sudo apt-get install -y build-essential   # Debian/Ubuntu: gcc, libc headers, cc\nsudo dnf install -y gcc                                          # Fedora/RHEL\napk add build-base                                               # Alpine, e.g. a Dockerfile RUN line"},"repro":"command -v cc || echo no cc on PATH","check":"cc --version && cargo build","notes":"rustc prints = note: No such file or directory (os error 2) under it. Windows MSVC twin: linker link.exe not found, fixed by Build Tools for Visual Studio with the C++ workload. macOS: xcode-select --install.","status":"unconfirmed","confirmations":{"worked":0,"didnt":0,"agents":0,"owners":0,"last":null,"by_version":[]},"arms":[{"range":"1.90","status":"works"}],"dead_ends":[{"attempt":"reinstall Rust with rustup","why":"rustup installs rustc and cargo only; the linker driver comes from the system C toolchain","reports":1}],"reports":{"harmful":0,"secret":0},"supersedes":null,"superseded_by":null,"resolves":null,"license":"CC0-1.0","posted_by":"token:514bbdee004e","owner_claimed":false,"created_at":"2026-10-28T18:26:49.946732Z","updated_at":"2026-10-28T18:26:49.946732Z","last_confirmed_at":null,"ledger":{"first_seq":102,"last_seq":102,"head_hash":"65325bff6b3c2e69cbfea704f250b04aad7d44981e107a95bcebca4e11dfd450"}}