[INFO] cloning repository https://github.com/NougatRillettes/FourInARust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NougatRillettes/FourInARust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNougatRillettes%2FFourInARust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNougatRillettes%2FFourInARust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40a5032bf9fdcbf0488686c2cc49edd3dd9a472b
[INFO] checking NougatRillettes/FourInARust against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNougatRillettes%2FFourInARust" "/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/NougatRillettes/FourInARust on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NougatRillettes/FourInARust
[INFO] finished tweaking git repo https://github.com/NougatRillettes/FourInARust
[INFO] tweaked toml for git repo https://github.com/NougatRillettes/FourInARust written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/NougatRillettes/FourInARust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d7ebfda609854e294dbd2d0d8144aeb09e9b3ec099d6f5d6879c283109519dd
[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" "9d7ebfda609854e294dbd2d0d8144aeb09e9b3ec099d6f5d6879c283109519dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d7ebfda609854e294dbd2d0d8144aeb09e9b3ec099d6f5d6879c283109519dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d7ebfda609854e294dbd2d0d8144aeb09e9b3ec099d6f5d6879c283109519dd", kill_on_drop: false }`
[INFO] [stdout] 9d7ebfda609854e294dbd2d0d8144aeb09e9b3ec099d6f5d6879c283109519dd
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40a3163264607668096495b60b8d80c596ef8381646a9e64ec2ed155671d7082
[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" "40a3163264607668096495b60b8d80c596ef8381646a9e64ec2ed155671d7082", kill_on_drop: false }`
[INFO] [stderr]    Compiling ncurses v5.87.0
[INFO] [stderr]     Checking four_in_a_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Index`
[INFO] [stdout]  --> src/board.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::{Index};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/board.rs:136:80
[INFO] [stdout]     |
[INFO] [stdout] 136 |                         1 + self.countyellow[coli][li].fromoffset(-cdir,-ldir);;
[INFO] [stdout]     |                                                                                ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Index`
[INFO] [stdout]  --> src/board.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::{Index};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/board.rs:136:80
[INFO] [stdout]     |
[INFO] [stdout] 136 |                         1 + self.countyellow[coli][li].fromoffset(-cdir,-ldir);;
[INFO] [stdout]     |                                                                                ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `Command { std: "docker" "inspect" "40a3163264607668096495b60b8d80c596ef8381646a9e64ec2ed155671d7082", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40a3163264607668096495b60b8d80c596ef8381646a9e64ec2ed155671d7082", kill_on_drop: false }`
[INFO] [stdout] 40a3163264607668096495b60b8d80c596ef8381646a9e64ec2ed155671d7082