[INFO] cloning repository https://github.com/GlitchyCat/minesweeper-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GlitchyCat/minesweeper-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGlitchyCat%2Fminesweeper-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGlitchyCat%2Fminesweeper-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 186a61cd0f108198c7658a644a3b3e49d11a6301
[INFO] checking GlitchyCat/minesweeper-rust against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGlitchyCat%2Fminesweeper-rust" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GlitchyCat/minesweeper-rust on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GlitchyCat/minesweeper-rust
[INFO] finished tweaking git repo https://github.com/GlitchyCat/minesweeper-rust
[INFO] tweaked toml for git repo https://github.com/GlitchyCat/minesweeper-rust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/GlitchyCat/minesweeper-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+c9228570668803e3e6402770d55f23a12c9ae686" "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] b4b36631595eeb6d11c914373aa3c76127c3cfeb5575dcfbe41c1cc75007a76d
[INFO] running `Command { std: "docker" "start" "-a" "b4b36631595eeb6d11c914373aa3c76127c3cfeb5575dcfbe41c1cc75007a76d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4b36631595eeb6d11c914373aa3c76127c3cfeb5575dcfbe41c1cc75007a76d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4b36631595eeb6d11c914373aa3c76127c3cfeb5575dcfbe41c1cc75007a76d", kill_on_drop: false }`
[INFO] [stdout] b4b36631595eeb6d11c914373aa3c76127c3cfeb5575dcfbe41c1cc75007a76d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbbbbe6b5dc4ae53bfe5ae46a33c2bdb60dd8e9137b74c9fbbcd133c3f3eddf4
[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" "cbbbbe6b5dc4ae53bfe5ae46a33c2bdb60dd8e9137b74c9fbbcd133c3f3eddf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `exploded_mine_pos`
[INFO] [stdout]   --> src/controller.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn exploded_mine_pos(&self) -> Option<(u32, u32)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `num_correctly_flagged`
[INFO] [stdout]   --> src/controller.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn num_correctly_flagged(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `num_flagged`
[INFO] [stdout]    --> src/model.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn num_flagged(&self) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `exploded_mine_pos`
[INFO] [stdout]   --> src/controller.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn exploded_mine_pos(&self) -> Option<(u32, u32)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `num_correctly_flagged`
[INFO] [stdout]   --> src/controller.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn num_correctly_flagged(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `num_flagged`
[INFO] [stdout]    --> src/model.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn num_flagged(&self) -> u32 {
[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 6.67s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cbbbbe6b5dc4ae53bfe5ae46a33c2bdb60dd8e9137b74c9fbbcd133c3f3eddf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbbbbe6b5dc4ae53bfe5ae46a33c2bdb60dd8e9137b74c9fbbcd133c3f3eddf4", kill_on_drop: false }`
[INFO] [stdout] cbbbbe6b5dc4ae53bfe5ae46a33c2bdb60dd8e9137b74c9fbbcd133c3f3eddf4