[INFO] cloning repository https://github.com/lasagnaphil/minesweeper-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lasagnaphil/minesweeper-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flasagnaphil%2Fminesweeper-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flasagnaphil%2Fminesweeper-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 47ba8090057e4dc2fb8b7ae575499ce6169f51b5
[INFO] checking lasagnaphil/minesweeper-rs against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flasagnaphil%2Fminesweeper-rs" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lasagnaphil/minesweeper-rs on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lasagnaphil/minesweeper-rs
[INFO] finished tweaking git repo https://github.com/lasagnaphil/minesweeper-rs
[INFO] tweaked toml for git repo https://github.com/lasagnaphil/minesweeper-rs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/lasagnaphil/minesweeper-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46649953b89d44e4e0bdedfd3fefb2af4a19f9c65da0d947027276749dc1b82c
[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" "46649953b89d44e4e0bdedfd3fefb2af4a19f9c65da0d947027276749dc1b82c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46649953b89d44e4e0bdedfd3fefb2af4a19f9c65da0d947027276749dc1b82c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46649953b89d44e4e0bdedfd3fefb2af4a19f9c65da0d947027276749dc1b82c", kill_on_drop: false }`
[INFO] [stdout] 46649953b89d44e4e0bdedfd3fefb2af4a19f9c65da0d947027276749dc1b82c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a9a1f5cf76473f81a626cf5edf53ee280c3c8aad1d746301cb37050a57eb18e
[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" "6a9a1f5cf76473f81a626cf5edf53ee280c3c8aad1d746301cb37050a57eb18e", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking itertools v0.6.1
[INFO] [stderr]     Checking minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `sample`, `thread_rng`
[INFO] [stdout]  --> src/main.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::{thread_rng, sample};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MouseEvent`
[INFO] [stdout]   --> src/main.rs:12:34
[INFO] [stdout]    |
[INFO] [stdout] 12 | use termion::event::{Key, Event, MouseEvent};
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `color`, `style`
[INFO] [stdout]   --> src/main.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 | use termion::{color, style, cursor};
[INFO] [stdout]    |               ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/main.rs:120:54
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let list = (0..self.width).cartesian_product((0..self.height));
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `sample`, `thread_rng`
[INFO] [stdout]  --> src/main.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::{thread_rng, sample};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MouseEvent`
[INFO] [stdout]   --> src/main.rs:12:34
[INFO] [stdout]    |
[INFO] [stdout] 12 | use termion::event::{Key, Event, MouseEvent};
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `color`, `style`
[INFO] [stdout]   --> src/main.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 | use termion::{color, style, cursor};
[INFO] [stdout]    |               ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/main.rs:120:54
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let list = (0..self.width).cartesian_product((0..self.height));
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `gameConfig` should have a snake case name
[INFO] [stdout]    --> src/main.rs:284:9
[INFO] [stdout]     |
[INFO] [stdout] 284 |     let gameConfig = match matches.value_of("DIFFICULTY") {
[INFO] [stdout]     |         ^^^^^^^^^^ help: convert the identifier to snake case: `game_config`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `gameConfig` should have a snake case name
[INFO] [stdout]    --> src/main.rs:284:9
[INFO] [stdout]     |
[INFO] [stdout] 284 |     let gameConfig = match matches.value_of("DIFFICULTY") {
[INFO] [stdout]     |         ^^^^^^^^^^ help: convert the identifier to snake case: `game_config`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.46s
[INFO] running `Command { std: "docker" "inspect" "6a9a1f5cf76473f81a626cf5edf53ee280c3c8aad1d746301cb37050a57eb18e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a9a1f5cf76473f81a626cf5edf53ee280c3c8aad1d746301cb37050a57eb18e", kill_on_drop: false }`
[INFO] [stdout] 6a9a1f5cf76473f81a626cf5edf53ee280c3c8aad1d746301cb37050a57eb18e