[INFO] crate panic_monitor 0.2.1 is already in cache
[INFO] extracting crate panic_monitor 0.2.1 into work/ex/clippy-test-run/sources/stable/reg/panic_monitor/0.2.1
[INFO] extracting crate panic_monitor 0.2.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/panic_monitor/0.2.1
[INFO] validating manifest of panic_monitor-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 panic_monitor-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 panic_monitor-0.2.1
[INFO] finished frobbing panic_monitor-0.2.1
[INFO] frobbed toml for panic_monitor-0.2.1 written to work/ex/clippy-test-run/sources/stable/reg/panic_monitor/0.2.1/Cargo.toml
[INFO] started frobbing panic_monitor-0.2.1
[INFO] finished frobbing panic_monitor-0.2.1
[INFO] frobbed toml for panic_monitor-0.2.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/panic_monitor/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 panic_monitor-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-6/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/panic_monitor/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] b64abf1900beb39deba721d2359b949eae14800c7faddb12f7f81e35be92078e
[INFO] running `"docker" "start" "-a" "b64abf1900beb39deba721d2359b949eae14800c7faddb12f7f81e35be92078e"`
[INFO] [stderr]     Checking panic_monitor v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `PanicMonitor`
[INFO] [stderr]    --> src/lib.rs:96:5
[INFO] [stderr]     |
[INFO] [stderr] 96  | /     pub fn new() -> PanicMonitor {
[INFO] [stderr] 97  | |         PanicMonitor {
[INFO] [stderr] 98  | |             panicked: Mutex::new(HashMap::new()),
[INFO] [stderr] 99  | |             cvar: Condvar::new(),
[INFO] [stderr] 100 | |         }
[INFO] [stderr] 101 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 84  | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:139:16
[INFO] [stderr]     |
[INFO] [stderr] 139 |             if watched_panicked.len() > 0 { return watched_panicked; }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!watched_panicked.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:159:16
[INFO] [stderr]     |
[INFO] [stderr] 159 |             if watched_panicked.len() > 0 { return watched_panicked; }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!watched_panicked.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `PanicMonitor`
[INFO] [stderr]    --> src/lib.rs:96:5
[INFO] [stderr]     |
[INFO] [stderr] 96  | /     pub fn new() -> PanicMonitor {
[INFO] [stderr] 97  | |         PanicMonitor {
[INFO] [stderr] 98  | |             panicked: Mutex::new(HashMap::new()),
[INFO] [stderr] 99  | |             cvar: Condvar::new(),
[INFO] [stderr] 100 | |         }
[INFO] [stderr] 101 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 84  | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:139:16
[INFO] [stderr]     |
[INFO] [stderr] 139 |             if watched_panicked.len() > 0 { return watched_panicked; }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!watched_panicked.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:159:16
[INFO] [stderr]     |
[INFO] [stderr] 159 |             if watched_panicked.len() > 0 { return watched_panicked; }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!watched_panicked.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "b64abf1900beb39deba721d2359b949eae14800c7faddb12f7f81e35be92078e"`
[INFO] running `"docker" "rm" "-f" "b64abf1900beb39deba721d2359b949eae14800c7faddb12f7f81e35be92078e"`
[INFO] [stdout] b64abf1900beb39deba721d2359b949eae14800c7faddb12f7f81e35be92078e