[INFO] cloning repository https://github.com/kyrregjerstad/rust-for-ts-devs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kyrregjerstad/rust-for-ts-devs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyrregjerstad%2Frust-for-ts-devs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyrregjerstad%2Frust-for-ts-devs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0797d5cdb4122070d2c81acce714fba21b0c6faf
[INFO] testing kyrregjerstad/rust-for-ts-devs against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyrregjerstad%2Frust-for-ts-devs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kyrregjerstad/rust-for-ts-devs
[INFO] finished tweaking git repo https://github.com/kyrregjerstad/rust-for-ts-devs
[INFO] tweaked toml for git repo https://github.com/kyrregjerstad/rust-for-ts-devs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kyrregjerstad/rust-for-ts-devs on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kyrregjerstad/rust-for-ts-devs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2f89d8d335651d4c335b167ec9da11d3de0aba4da2bb1464305d76ae628d4bc
[INFO] running `Command { std: "docker" "start" "-a" "b2f89d8d335651d4c335b167ec9da11d3de0aba4da2bb1464305d76ae628d4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2f89d8d335651d4c335b167ec9da11d3de0aba4da2bb1464305d76ae628d4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2f89d8d335651d4c335b167ec9da11d3de0aba4da2bb1464305d76ae628d4bc", kill_on_drop: false }`
[INFO] [stdout] b2f89d8d335651d4c335b167ec9da11d3de0aba4da2bb1464305d76ae628d4bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98194b59a680118d349284c2d382ca53a9eac26394579e19d3914d5d0e06f2bd
[INFO] running `Command { std: "docker" "start" "-a" "98194b59a680118d349284c2d382ca53a9eac26394579e19d3914d5d0e06f2bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-for-ts-devs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0069]: `return;` in a function whose return type is not `()`
[INFO] [stdout]   --> src/shapes/circle.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                                                       ---------------- expected `std::fmt::Result` because of this return type
[INFO] [stdout] 16 |         return;
[INFO] [stdout]    |         ^^^^^^ return type is not `()`
[INFO] [stdout]    |
[INFO] [stdout] help: give the `return` a value of the expected type
[INFO] [stdout]    |
[INFO] [stdout] 16 |         return Ok(());
[INFO] [stdout]    |                ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0069`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-for-ts-devs` (bin "rust-for-ts-devs") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "98194b59a680118d349284c2d382ca53a9eac26394579e19d3914d5d0e06f2bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98194b59a680118d349284c2d382ca53a9eac26394579e19d3914d5d0e06f2bd", kill_on_drop: false }`
[INFO] [stdout] 98194b59a680118d349284c2d382ca53a9eac26394579e19d3914d5d0e06f2bd
