[INFO] cloning repository https://github.com/A1nz2802/rust-book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/A1nz2802/rust-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FA1nz2802%2Frust-book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FA1nz2802%2Frust-book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b050cf3d0594f385f9f6aaf671f85647a633c08d
[INFO] testing A1nz2802/rust-book against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FA1nz2802%2Frust-book" "/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/A1nz2802/rust-book
[INFO] finished tweaking git repo https://github.com/A1nz2802/rust-book
[INFO] tweaked toml for git repo https://github.com/A1nz2802/rust-book written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/A1nz2802/rust-book on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/A1nz2802/rust-book 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48b5d9fc55451ba1856ee82b62aa599a019547eab9805ceb080c34cdd8ddd3dc
[INFO] running `Command { std: "docker" "start" "-a" "48b5d9fc55451ba1856ee82b62aa599a019547eab9805ceb080c34cdd8ddd3dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48b5d9fc55451ba1856ee82b62aa599a019547eab9805ceb080c34cdd8ddd3dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48b5d9fc55451ba1856ee82b62aa599a019547eab9805ceb080c34cdd8ddd3dc", kill_on_drop: false }`
[INFO] [stdout] 48b5d9fc55451ba1856ee82b62aa599a019547eab9805ceb080c34cdd8ddd3dc
[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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27a7dcb2e8c055ac563a571341adc8449ba70a4c6bb132accc4271925d33e9e9
[INFO] running `Command { std: "docker" "start" "-a" "27a7dcb2e8c055ac563a571341adc8449ba70a4c6bb132accc4271925d33e9e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.1
[INFO] [stderr]    Compiling rust_book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this arithmetic operation will overflow
[INFO] [stdout]   --> src/topics/data_types.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     _num += 1; // <- overflows occurred here
[INFO] [stdout]    |     ^^^^^^^^^ attempt to compute `u8::MAX + 1_u8`, which would overflow
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(arithmetic_overflow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_book` (bin "rust_book") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "27a7dcb2e8c055ac563a571341adc8449ba70a4c6bb132accc4271925d33e9e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27a7dcb2e8c055ac563a571341adc8449ba70a4c6bb132accc4271925d33e9e9", kill_on_drop: false }`
[INFO] [stdout] 27a7dcb2e8c055ac563a571341adc8449ba70a4c6bb132accc4271925d33e9e9
