[INFO] fetching crate codejam 0.1.0...
[INFO] checking codejam-0.1.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate codejam 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate codejam 0.1.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate codejam 0.1.0
[INFO] finished tweaking crates.io crate codejam 0.1.0
[INFO] tweaked toml for crates.io crate codejam 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d56d5d422c7be4448909f7259b07c5e4a131ae7facd742c3374fe8828d30cbc
[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" "4d56d5d422c7be4448909f7259b07c5e4a131ae7facd742c3374fe8828d30cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d56d5d422c7be4448909f7259b07c5e4a131ae7facd742c3374fe8828d30cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d56d5d422c7be4448909f7259b07c5e4a131ae7facd742c3374fe8828d30cbc", kill_on_drop: false }`
[INFO] [stdout] 4d56d5d422c7be4448909f7259b07c5e4a131ae7facd742c3374fe8828d30cbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 316aab2a7745502e3d9f65689fc74992faa8e263e4a46e060572d26b219ac04b
[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" "316aab2a7745502e3d9f65689fc74992faa8e263e4a46e060572d26b219ac04b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking codejam v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking quickcheck v0.8.5
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/bin/codejam-2008-practice-b.rs:108:14
[INFO] [stdout]     |
[INFO] [stdout] 108 |             };
[INFO] [stdout]     |              ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/bin/codejam-2008-practice-b.rs:108:14
[INFO] [stdout]     |
[INFO] [stdout] 108 |             };
[INFO] [stdout]     |              ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.44s
[INFO] running `Command { std: "docker" "inspect" "316aab2a7745502e3d9f65689fc74992faa8e263e4a46e060572d26b219ac04b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "316aab2a7745502e3d9f65689fc74992faa8e263e4a46e060572d26b219ac04b", kill_on_drop: false }`
[INFO] [stdout] 316aab2a7745502e3d9f65689fc74992faa8e263e4a46e060572d26b219ac04b