[INFO] cloning repository https://github.com/snowmerak/challengers-algorithm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/snowmerak/challengers-algorithm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnowmerak%2Fchallengers-algorithm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnowmerak%2Fchallengers-algorithm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1472bddfd69e9c4075467e6f42922ea810530048
[INFO] testing snowmerak/challengers-algorithm against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnowmerak%2Fchallengers-algorithm" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/snowmerak/challengers-algorithm on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/snowmerak/challengers-algorithm
[INFO] finished tweaking git repo https://github.com/snowmerak/challengers-algorithm
[INFO] tweaked toml for git repo https://github.com/snowmerak/challengers-algorithm written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/snowmerak/challengers-algorithm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebbf09cccc4fc8eb8793df5b1b776e152b4e714ebff6c55aa9a044e03f0d0ec7
[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" "ebbf09cccc4fc8eb8793df5b1b776e152b4e714ebff6c55aa9a044e03f0d0ec7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebbf09cccc4fc8eb8793df5b1b776e152b4e714ebff6c55aa9a044e03f0d0ec7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebbf09cccc4fc8eb8793df5b1b776e152b4e714ebff6c55aa9a044e03f0d0ec7", kill_on_drop: false }`
[INFO] [stdout] ebbf09cccc4fc8eb8793df5b1b776e152b4e714ebff6c55aa9a044e03f0d0ec7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5bccd98ac4bf7471655b95f4881608e2b922211f744717016f3a19e19e264bc
[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" "b5bccd98ac4bf7471655b95f4881608e2b922211f744717016f3a19e19e264bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling challengers-algorithm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0583]: file not found for module `N19193_max_product_difference`
[INFO] [stdout]  --> src/main.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | mod N19193_max_product_difference;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `N19193_max_product_difference`, create file "src/N19193_max_product_difference.rs" or "src/N19193_max_product_difference/mod.rs"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::array`
[INFO] [stdout]  --> src/N1512_num_identical_pairs.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::array;
[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] [stdout] For more information about this error, try `rustc --explain E0583`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `challengers-algorithm` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "b5bccd98ac4bf7471655b95f4881608e2b922211f744717016f3a19e19e264bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5bccd98ac4bf7471655b95f4881608e2b922211f744717016f3a19e19e264bc", kill_on_drop: false }`
[INFO] [stdout] b5bccd98ac4bf7471655b95f4881608e2b922211f744717016f3a19e19e264bc