[INFO] cloning repository https://github.com/aricasas/minesweeper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aricasas/minesweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faricasas%2Fminesweeper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faricasas%2Fminesweeper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9483add5f220de7c2f76bda63767f36a68cc76d6
[INFO] checking aricasas/minesweeper against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faricasas%2Fminesweeper" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aricasas/minesweeper 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/aricasas/minesweeper
[INFO] finished tweaking git repo https://github.com/aricasas/minesweeper
[INFO] tweaked toml for git repo https://github.com/aricasas/minesweeper written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/aricasas/minesweeper 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 01ce933b79bb9797e5138caa9740f2dfcd9fe39215c294d9a5293a7e0bc512dd
[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" "01ce933b79bb9797e5138caa9740f2dfcd9fe39215c294d9a5293a7e0bc512dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01ce933b79bb9797e5138caa9740f2dfcd9fe39215c294d9a5293a7e0bc512dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01ce933b79bb9797e5138caa9740f2dfcd9fe39215c294d9a5293a7e0bc512dd", kill_on_drop: false }`
[INFO] [stdout] 01ce933b79bb9797e5138caa9740f2dfcd9fe39215c294d9a5293a7e0bc512dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 7e7a75e7d2e52680d7593976ad9da77c2e88cf36df1218c6d35075351fe93f2e
[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" "7e7a75e7d2e52680d7593976ad9da77c2e88cf36df1218c6d35075351fe93f2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `protected_x`
[INFO] [stdout]   --> src/minefield.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stdout]    |                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_protected_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `protected_y`
[INFO] [stdout]   --> src/minefield.rs:49:48
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stdout]    |                                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_protected_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `protected_x`
[INFO] [stdout]   --> src/minefield.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stdout]    |                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_protected_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `protected_y`
[INFO] [stdout]   --> src/minefield.rs:49:48
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stdout]    |                                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_protected_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mines`
[INFO] [stdout]  --> src/cells.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Mines(u8),
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MissedMine`
[INFO] [stdout]  --> src/cells.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     MissedMine,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BadFlag`
[INFO] [stdout]   --> src/cells.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     BadFlag,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_new_mine_layout`
[INFO] [stdout]   --> src/minefield.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mines`
[INFO] [stdout]  --> src/cells.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Mines(u8),
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MissedMine`
[INFO] [stdout]  --> src/cells.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     MissedMine,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BadFlag`
[INFO] [stdout]   --> src/cells.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     BadFlag,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_new_mine_layout`
[INFO] [stdout]   --> src/minefield.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn create_new_mine_layout(protected_x: u8, protected_y: u8) -> [usize; 30] {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.03s
[INFO] running `Command { std: "docker" "inspect" "7e7a75e7d2e52680d7593976ad9da77c2e88cf36df1218c6d35075351fe93f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e7a75e7d2e52680d7593976ad9da77c2e88cf36df1218c6d35075351fe93f2e", kill_on_drop: false }`
[INFO] [stdout] 7e7a75e7d2e52680d7593976ad9da77c2e88cf36df1218c6d35075351fe93f2e