[INFO] cloning repository https://github.com/shotanue/rvs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shotanue/rvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshotanue%2Frvs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshotanue%2Frvs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1260fea27135259d7fc1afca5ed784fd614999de
[INFO] checking shotanue/rvs against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshotanue%2Frvs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shotanue/rvs on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shotanue/rvs
[INFO] finished tweaking git repo https://github.com/shotanue/rvs
[INFO] tweaked toml for git repo https://github.com/shotanue/rvs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/shotanue/rvs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 06783e65c641e47c4ee489256f42771abb5f2bfc38febc7a5499985a35ce3400
[INFO] running `Command { std: "docker" "start" "-a" "06783e65c641e47c4ee489256f42771abb5f2bfc38febc7a5499985a35ce3400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06783e65c641e47c4ee489256f42771abb5f2bfc38febc7a5499985a35ce3400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06783e65c641e47c4ee489256f42771abb5f2bfc38febc7a5499985a35ce3400", kill_on_drop: false }`
[INFO] [stdout] 06783e65c641e47c4ee489256f42771abb5f2bfc38febc7a5499985a35ce3400
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90342bcf685a2da33861f558c55411b4963c814a230b607f758cf93dc00e62e2
[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" "90342bcf685a2da33861f558c55411b4963c814a230b607f758cf93dc00e62e2", kill_on_drop: false }`
[INFO] [stderr]     Checking rvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `position_to_bit`
[INFO] [stdout]  --> src/board/operation.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::board::bit::{position_to_bit, transfer};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `legal_board` is never read
[INFO] [stdout]   --> src/board/operation.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut legal_board = 0x0000000000000000;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/board/check.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let mut b = Board::new(p, o);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `legal_board` is never read
[INFO] [stdout]   --> src/board/operation.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut legal_board = 0x0000000000000000;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/board/check.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let mut b = Board::new(player_board, opponent_board);
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/board/check.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let mut b = Board::new(p, o);
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "90342bcf685a2da33861f558c55411b4963c814a230b607f758cf93dc00e62e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90342bcf685a2da33861f558c55411b4963c814a230b607f758cf93dc00e62e2", kill_on_drop: false }`
[INFO] [stdout] 90342bcf685a2da33861f558c55411b4963c814a230b607f758cf93dc00e62e2