[INFO] crate hibitset 0.5.3 is already in cache
[INFO] extracting crate hibitset 0.5.3 into work/ex/clippy-test-run/sources/stable/reg/hibitset/0.5.3
[INFO] extracting crate hibitset 0.5.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/hibitset/0.5.3
[INFO] validating manifest of hibitset-0.5.3 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 hibitset-0.5.3 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 hibitset-0.5.3
[INFO] finished frobbing hibitset-0.5.3
[INFO] frobbed toml for hibitset-0.5.3 written to work/ex/clippy-test-run/sources/stable/reg/hibitset/0.5.3/Cargo.toml
[INFO] started frobbing hibitset-0.5.3
[INFO] finished frobbing hibitset-0.5.3
[INFO] frobbed toml for hibitset-0.5.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/hibitset/0.5.3/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 hibitset-0.5.3 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/hibitset/0.5.3:/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] e58ad7ce363fed5a382838dafee2d3e9e12850d4a5e647c800c089934e03c2cb
[INFO] running `"docker" "start" "-a" "e58ad7ce363fed5a382838dafee2d3e9e12850d4a5e647c800c089934e03c2cb"`
[INFO] [stderr]     Checking hibitset v0.5.3 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/iter/mod.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |             set: set,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `set`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/iter/mod.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |             masks: masks,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `masks`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/iter/mod.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |             prefix: prefix,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `prefix`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/util.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let d = (c + (c >> 8)) & PAR[3];
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/util.rs:152:9
[INFO] [stderr]     |
[INFO] [stderr] 152 |     let d = (c + (c >> 8)) & PAR[3];
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]    --> src/util.rs:153:9
[INFO] [stderr]     |
[INFO] [stderr] 153 |     let e = (d + (d >> 16)) & PAR[4];
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/iter/mod.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |             set: set,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `set`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/iter/mod.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |             masks: masks,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `masks`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/iter/mod.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |             prefix: prefix,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `prefix`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/util.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let d = (c + (c >> 8)) & PAR[3];
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/util.rs:152:9
[INFO] [stderr]     |
[INFO] [stderr] 152 |     let d = (c + (c >> 8)) & PAR[3];
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]    --> src/util.rs:153:9
[INFO] [stderr]     |
[INFO] [stderr] 153 |     let e = (d + (d >> 16)) & PAR[4];
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/atomic.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         return true;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[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: operator precedence can trip the unwary
[INFO] [stderr]   --> src/util.rs:14:28
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub const MAX_EID: usize = 2 << MAX - 1;
[INFO] [stderr]    |                            ^^^^^^^^^^^^ help: consider parenthesizing your expression: `2 << (MAX - 1)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::precedence)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#precedence
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/util.rs:145:14
[INFO] [stderr]     |
[INFO] [stderr] 145 |         !0 / 0x100000001
[INFO] [stderr]     |              ^^^^^^^^^^^ help: consider: `0x0001_0000_0001`
[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: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:207:9
[INFO] [stderr]     |
[INFO] [stderr] 207 |         return true;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/atomic.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         return true;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[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: operator precedence can trip the unwary
[INFO] [stderr]   --> src/util.rs:14:28
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub const MAX_EID: usize = 2 << MAX - 1;
[INFO] [stderr]    |                            ^^^^^^^^^^^^ help: consider parenthesizing your expression: `2 << (MAX - 1)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::precedence)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#precedence
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/util.rs:145:14
[INFO] [stderr]     |
[INFO] [stderr] 145 |         !0 / 0x100000001
[INFO] [stderr]     |              ^^^^^^^^^^^ help: consider: `0x0001_0000_0001`
[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: long literal lacking separators
[INFO] [stderr]    --> src/util.rs:390:46
[INFO] [stderr]     |
[INFO] [stderr] 390 |         assert_eq!(Some(5), average_ones_u32(0b100010));
[INFO] [stderr]     |                                              ^^^^^^^^ help: consider: `0b10_0010`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/util.rs:395:46
[INFO] [stderr]     |
[INFO] [stderr] 395 |         assert_eq!(Some(5), average_ones_u64(0b100010));
[INFO] [stderr]     |                                              ^^^^^^^^ help: consider: `0b10_0010`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:207:9
[INFO] [stderr]     |
[INFO] [stderr] 207 |         return true;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[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: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/atomic.rs:253:9
[INFO] [stderr]     |
[INFO] [stderr] 253 | /         self.atom
[INFO] [stderr] 254 | |             .get()
[INFO] [stderr] 255 | |             .map(|l0| for l in &l0[..] {
[INFO] [stderr] 256 | |                      l.store(0, Ordering::Relaxed);
[INFO] [stderr] 257 | |                  });
[INFO] [stderr]     | |___________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::option_map_unit_fn)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 253 |         if let Some(l0) = self.atom
[INFO] [stderr] 254 |             .get() { ... }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitOrAssign` impl
[INFO] [stderr]   --> src/ops.rs:17:31
[INFO] [stderr]    |
[INFO] [stderr] 17 |             let lower = level - 1;
[INFO] [stderr]    |                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::suspicious_op_assign_impl)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitOrAssign` impl
[INFO] [stderr]   --> src/ops.rs:18:51
[INFO] [stderr]    |
[INFO] [stderr] 18 |             let idx = iter.prefix[lower] as usize >> BITS;
[INFO] [stderr]    |                                                   ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitAndAssign` impl
[INFO] [stderr]   --> src/ops.rs:31:27
[INFO] [stderr]    |
[INFO] [stderr] 31 |         iter.masks[LAYERS - 1] &= self.layer3();
[INFO] [stderr]    |                           ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitAndAssign` impl
[INFO] [stderr]   --> src/ops.rs:33:31
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let lower = level - 1;
[INFO] [stderr]    |                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitAndAssign` impl
[INFO] [stderr]   --> src/ops.rs:34:51
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let idx = iter.prefix[lower] as usize >> BITS;
[INFO] [stderr]    |                                                   ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitAndAssign` impl
[INFO] [stderr]   --> src/ops.rs:47:22
[INFO] [stderr]    |
[INFO] [stderr] 47 |         masks[LAYERS - 1] =  self.layer3() & !lhs.layer3();
[INFO] [stderr]    |                      ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitAndAssign` impl
[INFO] [stderr]   --> src/ops.rs:48:52
[INFO] [stderr]    |
[INFO] [stderr] 48 |         BitIter::new(&mut *self, masks, [0; LAYERS - 1]).clear();
[INFO] [stderr]    |                                                    ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitXorAssign` impl
[INFO] [stderr]   --> src/ops.rs:61:31
[INFO] [stderr]    |
[INFO] [stderr] 61 |             let lower = level - 1;
[INFO] [stderr]    |                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitXorAssign` impl
[INFO] [stderr]   --> src/ops.rs:62:51
[INFO] [stderr]    |
[INFO] [stderr] 62 |             let idx = iter.prefix[lower] as usize >> BITS;
[INFO] [stderr]    |                                                   ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitXorAssign` impl
[INFO] [stderr]   --> src/ops.rs:68:39
[INFO] [stderr]    |
[INFO] [stderr] 68 |                     let lower = level - 1;
[INFO] [stderr]    |                                       ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitXorAssign` impl
[INFO] [stderr]   --> src/ops.rs:70:57
[INFO] [stderr]    |
[INFO] [stderr] 70 |                     let l = iter.prefix[lower] as usize >> BITS;
[INFO] [stderr]    |                                                         ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitXorAssign` impl
[INFO] [stderr]   --> src/ops.rs:74:50
[INFO] [stderr]    |
[INFO] [stderr] 74 |                         *self.layer_mut(level, h >> BITS) &= !mask;
[INFO] [stderr]    |                                                  ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitXorAssign` impl
[INFO] [stderr]   --> src/ops.rs:76:50
[INFO] [stderr]    |
[INFO] [stderr] 76 |                         *self.layer_mut(level, h >> BITS) |= mask;
[INFO] [stderr]    |                                                  ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/lib.rs:303:5
[INFO] [stderr]     |
[INFO] [stderr] 303 | /     fn drain<'a>(&'a mut self) -> DrainBitIter<'a, Self>
[INFO] [stderr] 304 | |         where Self: Sized
[INFO] [stderr] 305 | |     {
[INFO] [stderr] 306 | |         let layer3 = self.layer3();
[INFO] [stderr] 307 | |
[INFO] [stderr] 308 | |         DrainBitIter::new(self, [0, 0, 0, layer3], [0; LAYERS - 1])
[INFO] [stderr] 309 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/lib.rs:387:9
[INFO] [stderr]     |
[INFO] [stderr] 387 |         self.layer2.get(i).map(|&x| x).unwrap_or(0)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `self.layer2.get(i).cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/lib.rs:392:9
[INFO] [stderr]     |
[INFO] [stderr] 392 |         self.layer1.get(i).map(|&x| x).unwrap_or(0)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `self.layer1.get(i).cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/lib.rs:397:9
[INFO] [stderr]     |
[INFO] [stderr] 397 |         self.layer0.get(i).map(|&x| x).unwrap_or(0)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `self.layer0.get(i).cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 13 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `hibitset`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/atomic.rs:253:9
[INFO] [stderr]     |
[INFO] [stderr] 253 | /         self.atom
[INFO] [stderr] 254 | |             .get()
[INFO] [stderr] 255 | |             .map(|l0| for l in &l0[..] {
[INFO] [stderr] 256 | |                      l.store(0, Ordering::Relaxed);
[INFO] [stderr] 257 | |                  });
[INFO] [stderr]     | |___________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::option_map_unit_fn)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 253 |         if let Some(l0) = self.atom
[INFO] [stderr] 254 |             .get() { ... }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/iter/parallel.rs:179:26
[INFO] [stderr]     |
[INFO] [stderr] 179 |                 for j in 1..(i + 1) {
[INFO] [stderr]     |                          ^^^^^^^^^^ help: use: `1..=i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/iter/parallel.rs:205:35
[INFO] [stderr]     |
[INFO] [stderr] 205 |         assert_eq!(usize_bits.pow(split_levels as u32 - 1) * 2, count);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(split_levels)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitOrAssign` impl
[INFO] [stderr]   --> src/ops.rs:17:31
[INFO] [stderr]    |
[INFO] [stderr] 17 |             let lower = level - 1;
[INFO] [stderr]    |                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::suspicious_op_assign_impl)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitOrAssign` impl
[INFO] [stderr]   --> src/ops.rs:18:51
[INFO] [stderr]    |
[INFO] [stderr] 18 |             let idx = iter.prefix[lower] as usize >> BITS;
[INFO] [stderr]    |                                                   ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitAndAssign` impl
[INFO] [stderr]   --> src/ops.rs:31:27
[INFO] [stderr]    |
[INFO] [stderr] 31 |         iter.masks[LAYERS - 1] &= self.layer3();
[INFO] [stderr]    |                           ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitAndAssign` impl
[INFO] [stderr]   --> src/ops.rs:33:31
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let lower = level - 1;
[INFO] [stderr]    |                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitAndAssign` impl
[INFO] [stderr]   --> src/ops.rs:34:51
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let idx = iter.prefix[lower] as usize >> BITS;
[INFO] [stderr]    |                                                   ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitAndAssign` impl
[INFO] [stderr]   --> src/ops.rs:47:22
[INFO] [stderr]    |
[INFO] [stderr] 47 |         masks[LAYERS - 1] =  self.layer3() & !lhs.layer3();
[INFO] [stderr]    |                      ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitAndAssign` impl
[INFO] [stderr]   --> src/ops.rs:48:52
[INFO] [stderr]    |
[INFO] [stderr] 48 |         BitIter::new(&mut *self, masks, [0; LAYERS - 1]).clear();
[INFO] [stderr]    |                                                    ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitXorAssign` impl
[INFO] [stderr]   --> src/ops.rs:61:31
[INFO] [stderr]    |
[INFO] [stderr] 61 |             let lower = level - 1;
[INFO] [stderr]    |                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitXorAssign` impl
[INFO] [stderr]   --> src/ops.rs:62:51
[INFO] [stderr]    |
[INFO] [stderr] 62 |             let idx = iter.prefix[lower] as usize >> BITS;
[INFO] [stderr]    |                                                   ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitXorAssign` impl
[INFO] [stderr]   --> src/ops.rs:68:39
[INFO] [stderr]    |
[INFO] [stderr] 68 |                     let lower = level - 1;
[INFO] [stderr]    |                                       ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitXorAssign` impl
[INFO] [stderr]   --> src/ops.rs:70:57
[INFO] [stderr]    |
[INFO] [stderr] 70 |                     let l = iter.prefix[lower] as usize >> BITS;
[INFO] [stderr]    |                                                         ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitXorAssign` impl
[INFO] [stderr]   --> src/ops.rs:74:50
[INFO] [stderr]    |
[INFO] [stderr] 74 |                         *self.layer_mut(level, h >> BITS) &= !mask;
[INFO] [stderr]    |                                                  ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `BitXorAssign` impl
[INFO] [stderr]   --> src/ops.rs:76:50
[INFO] [stderr]    |
[INFO] [stderr] 76 |                         *self.layer_mut(level, h >> BITS) |= mask;
[INFO] [stderr]    |                                                  ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_op_assign_impl
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/util.rs:380:38
[INFO] [stderr]     |
[INFO] [stderr] 380 |                     average_ones_u64(i as u64).map(|n| n as u32),
[INFO] [stderr]     |                                      ^^^^^^^^ help: try: `u64::from(i)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/lib.rs:303:5
[INFO] [stderr]     |
[INFO] [stderr] 303 | /     fn drain<'a>(&'a mut self) -> DrainBitIter<'a, Self>
[INFO] [stderr] 304 | |         where Self: Sized
[INFO] [stderr] 305 | |     {
[INFO] [stderr] 306 | |         let layer3 = self.layer3();
[INFO] [stderr] 307 | |
[INFO] [stderr] 308 | |         DrainBitIter::new(self, [0, 0, 0, layer3], [0; LAYERS - 1])
[INFO] [stderr] 309 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/lib.rs:387:9
[INFO] [stderr]     |
[INFO] [stderr] 387 |         self.layer2.get(i).map(|&x| x).unwrap_or(0)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `self.layer2.get(i).cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/lib.rs:392:9
[INFO] [stderr]     |
[INFO] [stderr] 392 |         self.layer1.get(i).map(|&x| x).unwrap_or(0)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `self.layer1.get(i).cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/lib.rs:397:9
[INFO] [stderr]     |
[INFO] [stderr] 397 |         self.layer0.get(i).map(|&x| x).unwrap_or(0)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `self.layer0.get(i).cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 13 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `hibitset`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e58ad7ce363fed5a382838dafee2d3e9e12850d4a5e647c800c089934e03c2cb"`
[INFO] running `"docker" "rm" "-f" "e58ad7ce363fed5a382838dafee2d3e9e12850d4a5e647c800c089934e03c2cb"`
[INFO] [stdout] e58ad7ce363fed5a382838dafee2d3e9e12850d4a5e647c800c089934e03c2cb