[INFO] cloning repository https://github.com/yjmhyhc/ReversiBoardGame_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yjmhyhc/ReversiBoardGame_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyjmhyhc%2FReversiBoardGame_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyjmhyhc%2FReversiBoardGame_Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0ab0a979170cf8ef1fa47f43ec451e7fbee82c4
[INFO] checking yjmhyhc/ReversiBoardGame_Rust against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyjmhyhc%2FReversiBoardGame_Rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yjmhyhc/ReversiBoardGame_Rust
[INFO] finished tweaking git repo https://github.com/yjmhyhc/ReversiBoardGame_Rust
[INFO] tweaked toml for git repo https://github.com/yjmhyhc/ReversiBoardGame_Rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yjmhyhc/ReversiBoardGame_Rust on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yjmhyhc/ReversiBoardGame_Rust 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 022c35f703c9c023ffb758e0d94f58fb6cf54bdd762120cd822ae74eaafee9bb
[INFO] running `Command { std: "docker" "start" "-a" "022c35f703c9c023ffb758e0d94f58fb6cf54bdd762120cd822ae74eaafee9bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "022c35f703c9c023ffb758e0d94f58fb6cf54bdd762120cd822ae74eaafee9bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "022c35f703c9c023ffb758e0d94f58fb6cf54bdd762120cd822ae74eaafee9bb", kill_on_drop: false }`
[INFO] [stdout] 022c35f703c9c023ffb758e0d94f58fb6cf54bdd762120cd822ae74eaafee9bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35ba2825fd5c40eba5c7bbef1b5a29604539f69999757119bd850a7498e62c43
[INFO] running `Command { std: "docker" "start" "-a" "35ba2825fd5c40eba5c7bbef1b5a29604539f69999757119bd850a7498e62c43", kill_on_drop: false }`
[INFO] [stderr]     Checking ReversiBoardGame v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `row` is never read
[INFO] [stdout]    --> src/main.rs:214:13
[INFO] [stdout]     |
[INFO] [stdout] 214 |             row-=flip_count;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `col` is never read
[INFO] [stdout]    --> src/main.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             col-=flip_count;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `flip_count` is never read
[INFO] [stdout]    --> src/main.rs:216:13
[INFO] [stdout]     |
[INFO] [stdout] 216 |             flip_count = 0;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `flip_count` is never read
[INFO] [stdout]    --> src/main.rs:384:13
[INFO] [stdout]     |
[INFO] [stdout] 384 |             flip_count = 0;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]    --> src/main.rs:435:13
[INFO] [stdout]     |
[INFO] [stdout] 435 |     let mut result = String::new();
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `difference` is never read
[INFO] [stdout]    --> src/main.rs:436:13
[INFO] [stdout]     |
[INFO] [stdout] 436 |     let mut difference = 0;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `row` is never read
[INFO] [stdout]    --> src/main.rs:214:13
[INFO] [stdout]     |
[INFO] [stdout] 214 |             row-=flip_count;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `col` is never read
[INFO] [stdout]    --> src/main.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             col-=flip_count;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `flip_count` is never read
[INFO] [stdout]    --> src/main.rs:216:13
[INFO] [stdout]     |
[INFO] [stdout] 216 |             flip_count = 0;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `flip_count` is never read
[INFO] [stdout]    --> src/main.rs:384:13
[INFO] [stdout]     |
[INFO] [stdout] 384 |             flip_count = 0;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]    --> src/main.rs:435:13
[INFO] [stdout]     |
[INFO] [stdout] 435 |     let mut result = String::new();
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `difference` is never read
[INFO] [stdout]    --> src/main.rs:436:13
[INFO] [stdout]     |
[INFO] [stdout] 436 |     let mut difference = 0;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "35ba2825fd5c40eba5c7bbef1b5a29604539f69999757119bd850a7498e62c43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35ba2825fd5c40eba5c7bbef1b5a29604539f69999757119bd850a7498e62c43", kill_on_drop: false }`
[INFO] [stdout] 35ba2825fd5c40eba5c7bbef1b5a29604539f69999757119bd850a7498e62c43
