[INFO] cloning repository https://github.com/marcolussetti/programming_rust_chapter2_gcd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marcolussetti/programming_rust_chapter2_gcd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcolussetti%2Fprogramming_rust_chapter2_gcd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcolussetti%2Fprogramming_rust_chapter2_gcd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f42d988a4af20791bb6578279819d0bd94d19507
[INFO] checking marcolussetti/programming_rust_chapter2_gcd against master#893fadd11a52aa26fc19c67ee1b79f03d6a1bed3 for pr-77153
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcolussetti%2Fprogramming_rust_chapter2_gcd" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marcolussetti/programming_rust_chapter2_gcd on toolchain 893fadd11a52aa26fc19c67ee1b79f03d6a1bed3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/marcolussetti/programming_rust_chapter2_gcd
[INFO] finished tweaking git repo https://github.com/marcolussetti/programming_rust_chapter2_gcd
[INFO] tweaked toml for git repo https://github.com/marcolussetti/programming_rust_chapter2_gcd written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/marcolussetti/programming_rust_chapter2_gcd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83f5c2779f57f00a0058865ee0e429a2b8790fe3f280db34dd91f40272698ba9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "83f5c2779f57f00a0058865ee0e429a2b8790fe3f280db34dd91f40272698ba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83f5c2779f57f00a0058865ee0e429a2b8790fe3f280db34dd91f40272698ba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83f5c2779f57f00a0058865ee0e429a2b8790fe3f280db34dd91f40272698ba9", kill_on_drop: false }`
[INFO] [stdout] 83f5c2779f57f00a0058865ee0e429a2b8790fe3f280db34dd91f40272698ba9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da63ccf907033636fb82a6e725c55d23884466f26bf81fe4ccfcb1d0561bec65
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "da63ccf907033636fb82a6e725c55d23884466f26bf81fe4ccfcb1d0561bec65", kill_on_drop: false }`
[INFO] [stderr]     Checking programming_rust_chapter1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found keyword `let`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     }s
[INFO] [stdout]    |       - expected one of 8 possible tokens
[INFO] [stdout] 16 | 
[INFO] [stdout] 17 |     let mut running_gcd = numbers[0];
[INFO] [stdout]    |     ^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found keyword `let`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     }s
[INFO] [stdout]    |       - expected one of 8 possible tokens
[INFO] [stdout] 16 | 
[INFO] [stdout] 17 |     let mut running_gcd = numbers[0];
[INFO] [stdout]    |     ^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `programming_rust_chapter1`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "da63ccf907033636fb82a6e725c55d23884466f26bf81fe4ccfcb1d0561bec65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da63ccf907033636fb82a6e725c55d23884466f26bf81fe4ccfcb1d0561bec65", kill_on_drop: false }`
[INFO] [stdout] da63ccf907033636fb82a6e725c55d23884466f26bf81fe4ccfcb1d0561bec65