[INFO] cloning repository https://github.com/ChristianPomales/ai_homework
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChristianPomales/ai_homework" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChristianPomales%2Fai_homework", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChristianPomales%2Fai_homework'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d63eab064b2d2b5e0d9e178982b11b2397480cd0
[INFO] checking ChristianPomales/ai_homework against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChristianPomales%2Fai_homework" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ChristianPomales/ai_homework on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ChristianPomales/ai_homework
[INFO] finished tweaking git repo https://github.com/ChristianPomales/ai_homework
[INFO] tweaked toml for git repo https://github.com/ChristianPomales/ai_homework written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ChristianPomales/ai_homework already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 765846633a193e8de7d519f60e40d833e40d1c0fddc549cf9471fe3d89477906
[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" "765846633a193e8de7d519f60e40d833e40d1c0fddc549cf9471fe3d89477906", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "765846633a193e8de7d519f60e40d833e40d1c0fddc549cf9471fe3d89477906", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "765846633a193e8de7d519f60e40d833e40d1c0fddc549cf9471fe3d89477906", kill_on_drop: false }`
[INFO] [stdout] 765846633a193e8de7d519f60e40d833e40d1c0fddc549cf9471fe3d89477906
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 149482d28210659a6a994e7ec13193c77d12decee0d3617cf45ca254ac12a397
[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" "149482d28210659a6a994e7ec13193c77d12decee0d3617cf45ca254ac12a397", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking ai_homework v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:467:39
[INFO] [stdout]     |
[INFO] [stdout] 467 |     let mut first_row = String::new();;
[INFO] [stdout]     |                                       ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:471:40
[INFO] [stdout]     |
[INFO] [stdout] 471 |     let mut second_row = String::new();;
[INFO] [stdout]     |                                        ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:475:39
[INFO] [stdout]     |
[INFO] [stdout] 475 |     let mut third_row = String::new();;
[INFO] [stdout]     |                                       ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:549:46
[INFO] [stdout]     |
[INFO] [stdout] 549 |     let mut difficulty_input = String::new();;
[INFO] [stdout]     |                                              ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:618:43
[INFO] [stdout]     |
[INFO] [stdout] 618 |     let mut puzzle_option = String::new();;
[INFO] [stdout]     |                                           ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:668:45
[INFO] [stdout]     |
[INFO] [stdout] 668 |     let mut heuristic_input = String::new();;
[INFO] [stdout]     |                                             ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:467:39
[INFO] [stdout]     |
[INFO] [stdout] 467 |     let mut first_row = String::new();;
[INFO] [stdout]     |                                       ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:471:40
[INFO] [stdout]     |
[INFO] [stdout] 471 |     let mut second_row = String::new();;
[INFO] [stdout]     |                                        ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:475:39
[INFO] [stdout]     |
[INFO] [stdout] 475 |     let mut third_row = String::new();;
[INFO] [stdout]     |                                       ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:549:46
[INFO] [stdout]     |
[INFO] [stdout] 549 |     let mut difficulty_input = String::new();;
[INFO] [stdout]     |                                              ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:618:43
[INFO] [stdout]     |
[INFO] [stdout] 618 |     let mut puzzle_option = String::new();;
[INFO] [stdout]     |                                           ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:668:45
[INFO] [stdout]     |
[INFO] [stdout] 668 |     let mut heuristic_input = String::new();;
[INFO] [stdout]     |                                             ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.50s
[INFO] running `Command { std: "docker" "inspect" "149482d28210659a6a994e7ec13193c77d12decee0d3617cf45ca254ac12a397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "149482d28210659a6a994e7ec13193c77d12decee0d3617cf45ca254ac12a397", kill_on_drop: false }`
[INFO] [stdout] 149482d28210659a6a994e7ec13193c77d12decee0d3617cf45ca254ac12a397