[INFO] cloning repository https://github.com/deepgreenAN/programmig-contest-challenge-book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deepgreenAN/programmig-contest-challenge-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdeepgreenAN%2Fprogrammig-contest-challenge-book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdeepgreenAN%2Fprogrammig-contest-challenge-book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff4f3b15b257f95afc22f29bc92edabb97eac64e
[INFO] checking deepgreenAN/programmig-contest-challenge-book against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdeepgreenAN%2Fprogrammig-contest-challenge-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/deepgreenAN/programmig-contest-challenge-book
[INFO] finished tweaking git repo https://github.com/deepgreenAN/programmig-contest-challenge-book
[INFO] tweaked toml for git repo https://github.com/deepgreenAN/programmig-contest-challenge-book written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/deepgreenAN/programmig-contest-challenge-book on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/deepgreenAN/programmig-contest-challenge-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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fba0bd915cbb8614bb67a9011ed3349c31fe861b8a0dfda4a5a5b0f1d0c20de9
[INFO] running `Command { std: "docker" "start" "-a" "fba0bd915cbb8614bb67a9011ed3349c31fe861b8a0dfda4a5a5b0f1d0c20de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fba0bd915cbb8614bb67a9011ed3349c31fe861b8a0dfda4a5a5b0f1d0c20de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fba0bd915cbb8614bb67a9011ed3349c31fe861b8a0dfda4a5a5b0f1d0c20de9", kill_on_drop: false }`
[INFO] [stdout] fba0bd915cbb8614bb67a9011ed3349c31fe861b8a0dfda4a5a5b0f1d0c20de9
[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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbfc79aecff634b91c6c29853b325c1d12ee9cf5902fed893f3cf2941dc55fa4
[INFO] running `Command { std: "docker" "start" "-a" "cbfc79aecff634b91c6c29853b325c1d12ee9cf5902fed893f3cf2941dc55fa4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking syn v2.0.23
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking darling_core v0.20.1
[INFO] [stderr]    Compiling darling_macro v0.20.1
[INFO] [stderr]    Compiling darling v0.20.1
[INFO] [stderr]     Checking challenge_book_macros v0.1.0 (/opt/rustwide/workdir/challenge_book_macros)
[INFO] [stderr]     Checking challenge_book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `POrdVecExt` is never used
[INFO] [stdout]  --> src/vec_ext/pord_vec_ext.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait POrdVecExt<T: PartialOrd> {
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.90s
[INFO] running `Command { std: "docker" "inspect" "cbfc79aecff634b91c6c29853b325c1d12ee9cf5902fed893f3cf2941dc55fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbfc79aecff634b91c6c29853b325c1d12ee9cf5902fed893f3cf2941dc55fa4", kill_on_drop: false }`
[INFO] [stdout] cbfc79aecff634b91c6c29853b325c1d12ee9cf5902fed893f3cf2941dc55fa4