[INFO] crate rand_num_gen 0.1.0 is already in cache
[INFO] extracting crate rand_num_gen 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/rand_num_gen/0.1.0
[INFO] extracting crate rand_num_gen 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rand_num_gen/0.1.0
[INFO] validating manifest of rand_num_gen-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 rand_num_gen-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 rand_num_gen-0.1.0
[INFO] finished frobbing rand_num_gen-0.1.0
[INFO] frobbed toml for rand_num_gen-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/rand_num_gen/0.1.0/Cargo.toml
[INFO] started frobbing rand_num_gen-0.1.0
[INFO] finished frobbing rand_num_gen-0.1.0
[INFO] frobbed toml for rand_num_gen-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rand_num_gen/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 rand_num_gen-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-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/rand_num_gen/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] bea3fe0eb4a8080e707ed450ff7ff2a03f03226925bc00e2871971cb8a496c58
[INFO] running `"docker" "start" "-a" "bea3fe0eb4a8080e707ed450ff7ff2a03f03226925bc00e2871971cb8a496c58"`
[INFO] [stderr]     Checking rand_num_gen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking imagefmt v4.0.0
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/xorshift.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let z = (a << 16) | (b >> 16);
[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: 6th binding whose name is just one char
[INFO] [stderr]   --> src/xorshift.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let w = (b << 16) | (a >> 16);
[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: 5th binding whose name is just one char
[INFO] [stderr]   --> src/xorshift.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let x = (a << 16) | (b >> 16);
[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/xorshift.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let y = (b << 16) | (c >> 16);
[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: 7th binding whose name is just one char
[INFO] [stderr]   --> src/xorshift.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let z = (c << 16) | (a >> 16);
[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: 8th binding whose name is just one char
[INFO] [stderr]   --> src/xorshift.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let w = (b << 16) | (a >> 16);
[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/random_byte_iter.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |             rng: rng,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `rng`
[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/random_iter.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |             rng: rng,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `rng`
[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: long literal lacking separators
[INFO] [stderr]   --> src/xorshift.rs:18:33
[INFO] [stderr]    |
[INFO] [stderr] 18 |         SeedableRng::from_seed([0x193a6754, 0xa8a7d469, 0x97830e05, 0x113ba7bb])
[INFO] [stderr]    |                                 ^^^^^^^^^^ help: consider: `0x193a_6754`
[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/xorshift.rs:18:45
[INFO] [stderr]    |
[INFO] [stderr] 18 |         SeedableRng::from_seed([0x193a6754, 0xa8a7d469, 0x97830e05, 0x113ba7bb])
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: consider: `0xa8a7_d469`
[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/xorshift.rs:18:57
[INFO] [stderr]    |
[INFO] [stderr] 18 |         SeedableRng::from_seed([0x193a6754, 0xa8a7d469, 0x97830e05, 0x113ba7bb])
[INFO] [stderr]    |                                                         ^^^^^^^^^^ help: consider: `0x9783_0e05`
[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/xorshift.rs:18:69
[INFO] [stderr]    |
[INFO] [stderr] 18 |         SeedableRng::from_seed([0x193a6754, 0xa8a7d469, 0x97830e05, 0x113ba7bb])
[INFO] [stderr]    |                                                                     ^^^^^^^^^^ help: consider: `0x113b_a7bb`
[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 unit return type
[INFO] [stderr]    --> src/random.rs:104:34
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn random<R: Rng>(_: &mut R) -> () { () }
[INFO] [stderr]     |                                  ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit expression
[INFO] [stderr]    --> src/random.rs:104:42
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn random<R: Rng>(_: &mut R) -> () { () }
[INFO] [stderr]     |                                          ^^ help: remove the final `()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/rng.rs:25:33
[INFO] [stderr]    |
[INFO] [stderr] 25 |         const UPPER_MASK: u32 = 0x3F800000;
[INFO] [stderr]    |                                 ^^^^^^^^^^ help: consider: `0x3F80_0000`
[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/rng.rs:26:33
[INFO] [stderr]    |
[INFO] [stderr] 26 |         const LOWER_MASK: u32 = 0x7FFFFF;
[INFO] [stderr]    |                                 ^^^^^^^^ help: consider: `0x007F_FFFF`
[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/rng.rs:34:33
[INFO] [stderr]    |
[INFO] [stderr] 34 |         const UPPER_MASK: u64 = 0x3FF0000000000000;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^ help: consider: `0x3FF0_0000_0000_0000`
[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/rng.rs:35:33
[INFO] [stderr]    |
[INFO] [stderr] 35 |         const LOWER_MASK: u64 = 0xFFFFFFFFFFFFF;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^ help: consider: `0x000F_FFFF_FFFF_FFFF`
[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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/random.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 | /             match char::from_u32(rng.next_u32() & CHAR_MASK) {
[INFO] [stderr] 74 | |                 Some(c) => return c,
[INFO] [stderr] 75 | |                 None => (),
[INFO] [stderr] 76 | |             }
[INFO] [stderr]    | |_____________^ help: try this: `if let Some(c) = char::from_u32(rng.next_u32() & CHAR_MASK) { return c }`
[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: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/rng.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 |         ((self.next_u32() as u64) << 32) | (self.next_u32() as u64)
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.next_u32())`
[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] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/rng.rs:12:44
[INFO] [stderr]    |
[INFO] [stderr] 12 |         ((self.next_u32() as u64) << 32) | (self.next_u32() as u64)
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.next_u32())`
[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: transmute from a `u32` to a `f32`
[INFO] [stderr]   --> src/rng.rs:29:36
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let result: f32 = unsafe { mem::transmute(tmp) };
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: consider using: `f32::from_bits(tmp)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::transmute_int_to_float)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a `u64` to a `f64`
[INFO] [stderr]   --> src/rng.rs:38:36
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let result: f64 = unsafe { mem::transmute(tmp) };
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: consider using: `f64::from_bits(tmp)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[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/rng.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 | /     fn random_iter<'a, T>(&'a mut self) -> RandomIter<'a, T, Self>
[INFO] [stderr] 52 | |         where T: Random,
[INFO] [stderr] 53 | |               Self: Sized,
[INFO] [stderr] 54 | |     {
[INFO] [stderr] 55 | |         RandomIter::new(self)
[INFO] [stderr] 56 | |     }
[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: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/rng.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 | /     fn random_byte_iter<'a>(&'a mut self) -> RandomByteIter<'a, Self>
[INFO] [stderr] 60 | |         where Self: Sized,
[INFO] [stderr] 61 | |     {
[INFO] [stderr] 62 | |         RandomByteIter::new(self)
[INFO] [stderr] 63 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/xorshift.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let z = (a << 16) | (b >> 16);
[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: 6th binding whose name is just one char
[INFO] [stderr]   --> src/xorshift.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let w = (b << 16) | (a >> 16);
[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: 5th binding whose name is just one char
[INFO] [stderr]   --> src/xorshift.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let x = (a << 16) | (b >> 16);
[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/xorshift.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let y = (b << 16) | (c >> 16);
[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: 7th binding whose name is just one char
[INFO] [stderr]   --> src/xorshift.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let z = (c << 16) | (a >> 16);
[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: 8th binding whose name is just one char
[INFO] [stderr]   --> src/xorshift.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let w = (b << 16) | (a >> 16);
[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/random_byte_iter.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |             rng: rng,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `rng`
[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/random_iter.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |             rng: rng,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `rng`
[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: long literal lacking separators
[INFO] [stderr]   --> src/xorshift.rs:18:33
[INFO] [stderr]    |
[INFO] [stderr] 18 |         SeedableRng::from_seed([0x193a6754, 0xa8a7d469, 0x97830e05, 0x113ba7bb])
[INFO] [stderr]    |                                 ^^^^^^^^^^ help: consider: `0x193a_6754`
[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/xorshift.rs:18:45
[INFO] [stderr]    |
[INFO] [stderr] 18 |         SeedableRng::from_seed([0x193a6754, 0xa8a7d469, 0x97830e05, 0x113ba7bb])
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: consider: `0xa8a7_d469`
[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/xorshift.rs:18:57
[INFO] [stderr]    |
[INFO] [stderr] 18 |         SeedableRng::from_seed([0x193a6754, 0xa8a7d469, 0x97830e05, 0x113ba7bb])
[INFO] [stderr]    |                                                         ^^^^^^^^^^ help: consider: `0x9783_0e05`
[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/xorshift.rs:18:69
[INFO] [stderr]    |
[INFO] [stderr] 18 |         SeedableRng::from_seed([0x193a6754, 0xa8a7d469, 0x97830e05, 0x113ba7bb])
[INFO] [stderr]    |                                                                     ^^^^^^^^^^ help: consider: `0x113b_a7bb`
[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/xorshift.rs:96:37
[INFO] [stderr]    |
[INFO] [stderr] 96 |     assert_eq!(xorshift.next_u32(), 3690029583);
[INFO] [stderr]    |                                     ^^^^^^^^^^ help: consider: `3_690_029_583`
[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 unit return type
[INFO] [stderr]    --> src/random.rs:104:34
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn random<R: Rng>(_: &mut R) -> () { () }
[INFO] [stderr]     |                                  ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit expression
[INFO] [stderr]    --> src/random.rs:104:42
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn random<R: Rng>(_: &mut R) -> () { () }
[INFO] [stderr]     |                                          ^^ help: remove the final `()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/random.rs:158:19
[INFO] [stderr]     |
[INFO] [stderr] 158 |     assert_eq!(x, 0.885805);
[INFO] [stderr]     |                   ^^^^^^^^ help: consider: `0.885_805`
[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/random.rs:160:24
[INFO] [stderr]     |
[INFO] [stderr] 160 |     assert_eq!(z, Some(1068862244519192131));
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^ help: consider: `1_068_862_244_519_192_131`
[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/random.rs:170:24
[INFO] [stderr]     |
[INFO] [stderr] 170 |     assert_eq!(bytes, [3690029583, 1298391428, 3256827147, 248863884]);
[INFO] [stderr]     |                        ^^^^^^^^^^ help: consider: `3_690_029_583`
[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/random.rs:170:36
[INFO] [stderr]     |
[INFO] [stderr] 170 |     assert_eq!(bytes, [3690029583, 1298391428, 3256827147, 248863884]);
[INFO] [stderr]     |                                    ^^^^^^^^^^ help: consider: `1_298_391_428`
[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/random.rs:170:48
[INFO] [stderr]     |
[INFO] [stderr] 170 |     assert_eq!(bytes, [3690029583, 1298391428, 3256827147, 248863884]);
[INFO] [stderr]     |                                                ^^^^^^^^^^ help: consider: `3_256_827_147`
[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/random.rs:170:60
[INFO] [stderr]     |
[INFO] [stderr] 170 |     assert_eq!(bytes, [3690029583, 1298391428, 3256827147, 248863884]);
[INFO] [stderr]     |                                                            ^^^^^^^^^ help: consider: `248_863_884`
[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/rng.rs:25:33
[INFO] [stderr]    |
[INFO] [stderr] 25 |         const UPPER_MASK: u32 = 0x3F800000;
[INFO] [stderr]    |                                 ^^^^^^^^^^ help: consider: `0x3F80_0000`
[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/rng.rs:26:33
[INFO] [stderr]    |
[INFO] [stderr] 26 |         const LOWER_MASK: u32 = 0x7FFFFF;
[INFO] [stderr]    |                                 ^^^^^^^^ help: consider: `0x007F_FFFF`
[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/rng.rs:34:33
[INFO] [stderr]    |
[INFO] [stderr] 34 |         const UPPER_MASK: u64 = 0x3FF0000000000000;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^ help: consider: `0x3FF0_0000_0000_0000`
[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/rng.rs:35:33
[INFO] [stderr]    |
[INFO] [stderr] 35 |         const LOWER_MASK: u64 = 0xFFFFFFFFFFFFF;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^ help: consider: `0x000F_FFFF_FFFF_FFFF`
[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] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/bench.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `rand_num_gen`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/random.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 | /             match char::from_u32(rng.next_u32() & CHAR_MASK) {
[INFO] [stderr] 74 | |                 Some(c) => return c,
[INFO] [stderr] 75 | |                 None => (),
[INFO] [stderr] 76 | |             }
[INFO] [stderr]    | |_____________^ help: try this: `if let Some(c) = char::from_u32(rng.next_u32() & CHAR_MASK) { return c }`
[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: strict comparison of f32 or f64
[INFO] [stderr]    --> src/random.rs:158:5
[INFO] [stderr]     |
[INFO] [stderr] 158 |     assert_eq!(x, 0.885805);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::float_cmp)] on by default
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/random.rs:158:5
[INFO] [stderr]     |
[INFO] [stderr] 158 |     assert_eq!(x, 0.885805);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/rng.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 |         ((self.next_u32() as u64) << 32) | (self.next_u32() as u64)
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.next_u32())`
[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] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/rng.rs:12:44
[INFO] [stderr]    |
[INFO] [stderr] 12 |         ((self.next_u32() as u64) << 32) | (self.next_u32() as u64)
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.next_u32())`
[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: transmute from a `u32` to a `f32`
[INFO] [stderr]   --> src/rng.rs:29:36
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let result: f32 = unsafe { mem::transmute(tmp) };
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: consider using: `f32::from_bits(tmp)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::transmute_int_to_float)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a `u64` to a `f64`
[INFO] [stderr]   --> src/rng.rs:38:36
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let result: f64 = unsafe { mem::transmute(tmp) };
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^ help: consider using: `f64::from_bits(tmp)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[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/rng.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 | /     fn random_iter<'a, T>(&'a mut self) -> RandomIter<'a, T, Self>
[INFO] [stderr] 52 | |         where T: Random,
[INFO] [stderr] 53 | |               Self: Sized,
[INFO] [stderr] 54 | |     {
[INFO] [stderr] 55 | |         RandomIter::new(self)
[INFO] [stderr] 56 | |     }
[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: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/rng.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 | /     fn random_byte_iter<'a>(&'a mut self) -> RandomByteIter<'a, Self>
[INFO] [stderr] 60 | |         where Self: Sized,
[INFO] [stderr] 61 | |     {
[INFO] [stderr] 62 | |         RandomByteIter::new(self)
[INFO] [stderr] 63 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rand_num_gen`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "bea3fe0eb4a8080e707ed450ff7ff2a03f03226925bc00e2871971cb8a496c58"`
[INFO] running `"docker" "rm" "-f" "bea3fe0eb4a8080e707ed450ff7ff2a03f03226925bc00e2871971cb8a496c58"`
[INFO] [stdout] bea3fe0eb4a8080e707ed450ff7ff2a03f03226925bc00e2871971cb8a496c58