[INFO] crate unreachable 1.0.0 is already in cache
[INFO] extracting crate unreachable 1.0.0 into work/ex/clippy-test-run/sources/stable/reg/unreachable/1.0.0
[INFO] extracting crate unreachable 1.0.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/unreachable/1.0.0
[INFO] validating manifest of unreachable-1.0.0 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 unreachable-1.0.0 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 unreachable-1.0.0
[INFO] finished frobbing unreachable-1.0.0
[INFO] frobbed toml for unreachable-1.0.0 written to work/ex/clippy-test-run/sources/stable/reg/unreachable/1.0.0/Cargo.toml
[INFO] started frobbing unreachable-1.0.0
[INFO] finished frobbing unreachable-1.0.0
[INFO] frobbed toml for unreachable-1.0.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/unreachable/1.0.0/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 unreachable-1.0.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/unreachable/1.0.0:/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" "-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] e217a38f768b227151ade0e2d9bae688416cbae345e12638faf6c74e4d66bc49
[INFO] running `"docker" "start" "-a" "e217a38f768b227151ade0e2d9bae688416cbae345e12638faf6c74e4d66bc49"`
[INFO] [stderr]     Checking unreachable v1.0.0 (/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:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 | /         match self {
[INFO] [stderr] 56 | |             Some(_) => unreachable(),
[INFO] [stderr] 57 | |             None => ()
[INFO] [stderr] 58 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Some(_) = self { unreachable() }`
[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] error: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/lib.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 | /         match self {
[INFO] [stderr] 56 | |             Some(_) => unreachable(),
[INFO] [stderr] 57 | |             None => ()
[INFO] [stderr] 58 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Some(_) = self { unreachable() }`
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:1:24
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]    |                        ^^^^^^^^
[INFO] [stderr]    = note: #[deny(clippy::single_match)] implied by #[deny(warnings)]
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `unreachable`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e217a38f768b227151ade0e2d9bae688416cbae345e12638faf6c74e4d66bc49"`
[INFO] running `"docker" "rm" "-f" "e217a38f768b227151ade0e2d9bae688416cbae345e12638faf6c74e4d66bc49"`
[INFO] [stdout] e217a38f768b227151ade0e2d9bae688416cbae345e12638faf6c74e4d66bc49