[INFO] crate prisoners_switches 0.1.0 is already in cache
[INFO] extracting crate prisoners_switches 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/prisoners_switches/0.1.0
[INFO] extracting crate prisoners_switches 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/prisoners_switches/0.1.0
[INFO] validating manifest of prisoners_switches-0.1.0 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 prisoners_switches-0.1.0 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 prisoners_switches-0.1.0
[INFO] finished frobbing prisoners_switches-0.1.0
[INFO] frobbed toml for prisoners_switches-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/prisoners_switches/0.1.0/Cargo.toml
[INFO] started frobbing prisoners_switches-0.1.0
[INFO] finished frobbing prisoners_switches-0.1.0
[INFO] frobbed toml for prisoners_switches-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/prisoners_switches/0.1.0/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 prisoners_switches-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/prisoners_switches/0.1.0:/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] 8b6f4ea132bd63bddb4ffc0d26dab5874d7e67ce090bc42dcb32f1e9ca4447b3
[INFO] running `"docker" "start" "-a" "8b6f4ea132bd63bddb4ffc0d26dab5874d7e67ce090bc42dcb32f1e9ca4447b3"`
[INFO] [stderr]     Checking prisoners_switches v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         return false;
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         return false;
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |         return false;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/main.rs:126:17
[INFO] [stderr]     |
[INFO] [stderr] 126 |     for _ in 0..1000000 {
[INFO] [stderr]     |                 ^^^^^^^ help: consider: `1_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Plan1`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     pub fn new()->Self{
[INFO] [stderr] 14 | |         Plan1{
[INFO] [stderr] 15 | |             visits:0,
[INFO] [stderr] 16 | |         }
[INFO] [stderr] 17 | |     }
[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] 8  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Plan2`
[INFO] [stderr]   --> src/main.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     pub fn new()->Self{
[INFO] [stderr] 47 | |         Plan2{
[INFO] [stderr] 48 | |             visits:0,
[INFO] [stderr] 49 | |             highest:0,
[INFO] [stderr] 50 | |         }
[INFO] [stderr] 51 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[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] 40 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Plan3`
[INFO] [stderr]   --> src/main.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 | /     pub fn new()->Self{
[INFO] [stderr] 84 | |         Plan3{
[INFO] [stderr] 85 | |             visits:0,
[INFO] [stderr] 86 | |             others:0,
[INFO] [stderr] 87 | |             last:0,
[INFO] [stderr] 88 | |         }
[INFO] [stderr] 89 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[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] 76 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]    --> src/main.rs:139:16
[INFO] [stderr]     |
[INFO] [stderr] 139 |           if let None = complete {
[INFO] [stderr]     |  _________-      ^^^^
[INFO] [stderr] 140 | |             if let None = (&visits).into_iter().find(|x| **x == 0) {
[INFO] [stderr] 141 | |                 complete = Some(i);
[INFO] [stderr] 142 | |             }
[INFO] [stderr] 143 | |         }
[INFO] [stderr]     | |_________- help: try this: `if complete.is_none()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]    --> src/main.rs:140:20
[INFO] [stderr]     |
[INFO] [stderr] 140 |               if let None = (&visits).into_iter().find(|x| **x == 0) {
[INFO] [stderr]     |  _____________-      ^^^^
[INFO] [stderr] 141 | |                 complete = Some(i);
[INFO] [stderr] 142 | |             }
[INFO] [stderr]     | |_____________- help: try this: `if (&visits).into_iter().find(|x| **x == 0).is_none()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the Vec
[INFO] [stderr]    --> src/main.rs:140:37
[INFO] [stderr]     |
[INFO] [stderr] 140 |             if let None = (&visits).into_iter().find(|x| **x == 0) {
[INFO] [stderr]     |                                     ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         return false;
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         return false;
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |         return false;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/main.rs:126:17
[INFO] [stderr]     |
[INFO] [stderr] 126 |     for _ in 0..1000000 {
[INFO] [stderr]     |                 ^^^^^^^ help: consider: `1_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Plan1`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     pub fn new()->Self{
[INFO] [stderr] 14 | |         Plan1{
[INFO] [stderr] 15 | |             visits:0,
[INFO] [stderr] 16 | |         }
[INFO] [stderr] 17 | |     }
[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] 8  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Plan2`
[INFO] [stderr]   --> src/main.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     pub fn new()->Self{
[INFO] [stderr] 47 | |         Plan2{
[INFO] [stderr] 48 | |             visits:0,
[INFO] [stderr] 49 | |             highest:0,
[INFO] [stderr] 50 | |         }
[INFO] [stderr] 51 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[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] 40 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Plan3`
[INFO] [stderr]   --> src/main.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 | /     pub fn new()->Self{
[INFO] [stderr] 84 | |         Plan3{
[INFO] [stderr] 85 | |             visits:0,
[INFO] [stderr] 86 | |             others:0,
[INFO] [stderr] 87 | |             last:0,
[INFO] [stderr] 88 | |         }
[INFO] [stderr] 89 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[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] 76 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]    --> src/main.rs:139:16
[INFO] [stderr]     |
[INFO] [stderr] 139 |           if let None = complete {
[INFO] [stderr]     |  _________-      ^^^^
[INFO] [stderr] 140 | |             if let None = (&visits).into_iter().find(|x| **x == 0) {
[INFO] [stderr] 141 | |                 complete = Some(i);
[INFO] [stderr] 142 | |             }
[INFO] [stderr] 143 | |         }
[INFO] [stderr]     | |_________- help: try this: `if complete.is_none()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]    --> src/main.rs:140:20
[INFO] [stderr]     |
[INFO] [stderr] 140 |               if let None = (&visits).into_iter().find(|x| **x == 0) {
[INFO] [stderr]     |  _____________-      ^^^^
[INFO] [stderr] 141 | |                 complete = Some(i);
[INFO] [stderr] 142 | |             }
[INFO] [stderr]     | |_____________- help: try this: `if (&visits).into_iter().find(|x| **x == 0).is_none()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the Vec
[INFO] [stderr]    --> src/main.rs:140:37
[INFO] [stderr]     |
[INFO] [stderr] 140 |             if let None = (&visits).into_iter().find(|x| **x == 0) {
[INFO] [stderr]     |                                     ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "8b6f4ea132bd63bddb4ffc0d26dab5874d7e67ce090bc42dcb32f1e9ca4447b3"`
[INFO] running `"docker" "rm" "-f" "8b6f4ea132bd63bddb4ffc0d26dab5874d7e67ce090bc42dcb32f1e9ca4447b3"`
[INFO] [stdout] 8b6f4ea132bd63bddb4ffc0d26dab5874d7e67ce090bc42dcb32f1e9ca4447b3