[INFO] cloning repository https://github.com/rsstdd/Rust_Strat_Game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rsstdd/Rust_Strat_Game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsstdd%2FRust_Strat_Game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsstdd%2FRust_Strat_Game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 222232efbf56d081684a0e6d486e197cb2d65b34
[INFO] checking rsstdd/Rust_Strat_Game against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsstdd%2FRust_Strat_Game" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rsstdd/Rust_Strat_Game on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rsstdd/Rust_Strat_Game
[INFO] finished tweaking git repo https://github.com/rsstdd/Rust_Strat_Game
[INFO] tweaked toml for git repo https://github.com/rsstdd/Rust_Strat_Game written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/rsstdd/Rust_Strat_Game already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80ba925efa32222e2609019aeac89c8260f8f19045da0111b0278e8156ca9d44
[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" "80ba925efa32222e2609019aeac89c8260f8f19045da0111b0278e8156ca9d44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80ba925efa32222e2609019aeac89c8260f8f19045da0111b0278e8156ca9d44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80ba925efa32222e2609019aeac89c8260f8f19045da0111b0278e8156ca9d44", kill_on_drop: false }`
[INFO] [stdout] 80ba925efa32222e2609019aeac89c8260f8f19045da0111b0278e8156ca9d44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 650dd06867a0fe81b4af17697acf819fa2340cb3c5f6691484d2bba8f9ba1f80
[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" "650dd06867a0fe81b4af17697acf819fa2340cb3c5f6691484d2bba8f9ba1f80", kill_on_drop: false }`
[INFO] [stderr]     Checking strat-game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Square`
[INFO] [stdout]   --> src/main.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct Square {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Grid`
[INFO] [stdout]   --> src/main.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Grid {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate_empty`
[INFO] [stdout]   --> src/main.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn generate_empty(size_x: usize, size_y: usize) -> Grid { // returns a grid
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "650dd06867a0fe81b4af17697acf819fa2340cb3c5f6691484d2bba8f9ba1f80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "650dd06867a0fe81b4af17697acf819fa2340cb3c5f6691484d2bba8f9ba1f80", kill_on_drop: false }`
[INFO] [stdout] 650dd06867a0fe81b4af17697acf819fa2340cb3c5f6691484d2bba8f9ba1f80