[INFO] cloning repository https://github.com/rsstdd/Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rsstdd/Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsstdd%2FRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsstdd%2FRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5cf6db23528ef4649a33cf250d2cdf9c238c1c0
[INFO] testing rsstdd/Rust against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsstdd%2FRust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rsstdd/Rust on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rsstdd/Rust
[INFO] finished tweaking git repo https://github.com/rsstdd/Rust
[INFO] tweaked toml for git repo https://github.com/rsstdd/Rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/rsstdd/Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7db9aae1ed72305b807ce79c77f729d9a84e3953d44fe0b461a2227d9a71d628
[INFO] running `Command { std: "docker" "start" "-a" "7db9aae1ed72305b807ce79c77f729d9a84e3953d44fe0b461a2227d9a71d628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7db9aae1ed72305b807ce79c77f729d9a84e3953d44fe0b461a2227d9a71d628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7db9aae1ed72305b807ce79c77f729d9a84e3953d44fe0b461a2227d9a71d628", kill_on_drop: false }`
[INFO] [stdout] 7db9aae1ed72305b807ce79c77f729d9a84e3953d44fe0b461a2227d9a71d628
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0a932b33f8e11a38872a8db9514928070fa031268da818f5ce98b388ceb67a85
[INFO] running `Command { std: "docker" "start" "-a" "0a932b33f8e11a38872a8db9514928070fa031268da818f5ce98b388ceb67a85", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `else`, or an operator, found `{`
[INFO] [stdout]   --> src/main.rs:20:47
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let guess: u32 = guess.trim().parse() {
[INFO] [stdout]    |                                               ^ expected one of `.`, `;`, `?`, `else`, or an operator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello_cargo` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "0a932b33f8e11a38872a8db9514928070fa031268da818f5ce98b388ceb67a85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a932b33f8e11a38872a8db9514928070fa031268da818f5ce98b388ceb67a85", kill_on_drop: false }`
[INFO] [stdout] 0a932b33f8e11a38872a8db9514928070fa031268da818f5ce98b388ceb67a85