[INFO] crate mines 0.2.1 is already in cache
[INFO] extracting crate mines 0.2.1 into work/ex/clippy-test-run/sources/stable/reg/mines/0.2.1
[INFO] extracting crate mines 0.2.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/mines/0.2.1
[INFO] validating manifest of mines-0.2.1 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mines-0.2.1 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mines-0.2.1
[INFO] finished frobbing mines-0.2.1
[INFO] frobbed toml for mines-0.2.1 written to work/ex/clippy-test-run/sources/stable/reg/mines/0.2.1/Cargo.toml
[INFO] started frobbing mines-0.2.1
[INFO] finished frobbing mines-0.2.1
[INFO] frobbed toml for mines-0.2.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/mines/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting mines-0.2.1 against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/mines/0.2.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dclippy::into_iter_on_array" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 776b615b929e17482eede0b1f62cdd7aa6dc863b59b811ede8bc5cb54eaf1e6b
[INFO] running `"docker" "start" "-a" "776b615b929e17482eede0b1f62cdd7aa6dc863b59b811ede8bc5cb54eaf1e6b"`
[INFO] [stderr]     Checking mines v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/lib.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 | /         match self {
[INFO] [stderr] 61 | |             Some(_) => boom("Expected None, got Some"),
[INFO] [stderr] 62 | |             None => (),
[INFO] [stderr] 63 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Some(_) = self { boom("Expected None, got Some") }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/lib.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 | /         match self {
[INFO] [stderr] 61 | |             Some(_) => boom("Expected None, got Some"),
[INFO] [stderr] 62 | |             None => (),
[INFO] [stderr] 63 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Some(_) = self { boom("Expected None, got Some") }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "776b615b929e17482eede0b1f62cdd7aa6dc863b59b811ede8bc5cb54eaf1e6b"`
[INFO] running `"docker" "rm" "-f" "776b615b929e17482eede0b1f62cdd7aa6dc863b59b811ede8bc5cb54eaf1e6b"`
[INFO] [stdout] 776b615b929e17482eede0b1f62cdd7aa6dc863b59b811ede8bc5cb54eaf1e6b