[INFO] crate parity-codec 2.1.5 is already in cache
[INFO] extracting crate parity-codec 2.1.5 into work/ex/clippy-test-run/sources/stable/reg/parity-codec/2.1.5
[INFO] extracting crate parity-codec 2.1.5 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/parity-codec/2.1.5
[INFO] validating manifest of parity-codec-2.1.5 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 parity-codec-2.1.5 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 parity-codec-2.1.5
[INFO] finished frobbing parity-codec-2.1.5
[INFO] frobbed toml for parity-codec-2.1.5 written to work/ex/clippy-test-run/sources/stable/reg/parity-codec/2.1.5/Cargo.toml
[INFO] started frobbing parity-codec-2.1.5
[INFO] finished frobbing parity-codec-2.1.5
[INFO] frobbed toml for parity-codec-2.1.5 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/parity-codec/2.1.5/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 parity-codec-2.1.5 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/parity-codec/2.1.5:/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] 0887d8dea51f9dfa43c9ec408cccec52c8b73741c01c31ece233cb7ccce73ed0
[INFO] running `"docker" "start" "-a" "0887d8dea51f9dfa43c9ec408cccec52c8b73741c01c31ece233cb7ccce73ed0"`
[INFO] [stderr]     Checking parity-codec v2.1.5 (/opt/crater/workdir)
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/codec.rs:213:8
[INFO] [stderr]     |
[INFO] [stderr] 213 |             0...0b00111111 => dest.push_byte(self.0 << 2),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b0011_1111`
[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/codec.rs:222:8
[INFO] [stderr]     |
[INFO] [stderr] 222 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b0011_1111`
[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: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:223:8
[INFO] [stderr]     |
[INFO] [stderr] 223 |             0...0b00111111_11111111 => ((self.0 << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::large_digit_groups)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/codec.rs:232:8
[INFO] [stderr]     |
[INFO] [stderr] 232 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b0011_1111`
[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: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:233:8
[INFO] [stderr]     |
[INFO] [stderr] 233 |             0...0b00111111_11111111 => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:234:8
[INFO] [stderr]     |
[INFO] [stderr] 234 |             0...0b00111111_11111111_11111111_11111111 => ((self.0 << 2) | 0b10).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111_1111_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/codec.rs:246:8
[INFO] [stderr]     |
[INFO] [stderr] 246 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b0011_1111`
[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: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:247:8
[INFO] [stderr]     |
[INFO] [stderr] 247 |             0...0b00111111_11111111 => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:248:8
[INFO] [stderr]     |
[INFO] [stderr] 248 |             0...0b00111111_11111111_11111111_11111111 => (((self.0 as u32) << 2) | 0b10).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111_1111_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/codec.rs:267:8
[INFO] [stderr]     |
[INFO] [stderr] 267 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b0011_1111`
[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: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:268:8
[INFO] [stderr]     |
[INFO] [stderr] 268 |             0...0b00111111_11111111 => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:269:8
[INFO] [stderr]     |
[INFO] [stderr] 269 |             0...0b00111111_11111111_11111111_11111111 => (((self.0 as u32) << 2) | 0b10).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111_1111_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/codec.rs:213:8
[INFO] [stderr]     |
[INFO] [stderr] 213 |             0...0b00111111 => dest.push_byte(self.0 << 2),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b0011_1111`
[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/codec.rs:222:8
[INFO] [stderr]     |
[INFO] [stderr] 222 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b0011_1111`
[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: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:223:8
[INFO] [stderr]     |
[INFO] [stderr] 223 |             0...0b00111111_11111111 => ((self.0 << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::large_digit_groups)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/codec.rs:232:8
[INFO] [stderr]     |
[INFO] [stderr] 232 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b0011_1111`
[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: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:233:8
[INFO] [stderr]     |
[INFO] [stderr] 233 |             0...0b00111111_11111111 => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:234:8
[INFO] [stderr]     |
[INFO] [stderr] 234 |             0...0b00111111_11111111_11111111_11111111 => ((self.0 << 2) | 0b10).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111_1111_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/codec.rs:246:8
[INFO] [stderr]     |
[INFO] [stderr] 246 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b0011_1111`
[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: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:247:8
[INFO] [stderr]     |
[INFO] [stderr] 247 |             0...0b00111111_11111111 => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:248:8
[INFO] [stderr]     |
[INFO] [stderr] 248 |             0...0b00111111_11111111_11111111_11111111 => (((self.0 as u32) << 2) | 0b10).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111_1111_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/codec.rs:267:8
[INFO] [stderr]     |
[INFO] [stderr] 267 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b0011_1111`
[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: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:268:8
[INFO] [stderr]     |
[INFO] [stderr] 268 |             0...0b00111111_11111111 => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: digit groups should be smaller
[INFO] [stderr]    --> src/codec.rs:269:8
[INFO] [stderr]     |
[INFO] [stderr] 269 |             0...0b00111111_11111111_11111111_11111111 => (((self.0 as u32) << 2) | 0b10).encode_to(dest),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider: `0b0011_1111_1111_1111_1111_1111_1111_1111`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_digit_groups
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/codec.rs:858:17
[INFO] [stderr]     |
[INFO] [stderr] 858 |             (16384, 4), (1073741823, 4),
[INFO] [stderr]     |                          ^^^^^^^^^^ help: consider: `1_073_741_823`
[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/codec.rs:859:5
[INFO] [stderr]     |
[INFO] [stderr] 859 |             (1073741824, 5), (1 << 32 - 1, 5),
[INFO] [stderr]     |              ^^^^^^^^^^ help: consider: `1_073_741_824`
[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: operator precedence can trip the unwary
[INFO] [stderr]    --> src/codec.rs:859:22
[INFO] [stderr]     |
[INFO] [stderr] 859 |             (1073741824, 5), (1 << 32 - 1, 5),
[INFO] [stderr]     |                               ^^^^^^^^^^^ help: consider parenthesizing your expression: `1 << (32 - 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: operator precedence can trip the unwary
[INFO] [stderr]    --> src/codec.rs:860:47
[INFO] [stderr]     |
[INFO] [stderr] 860 |             (1 << 32, 6), (1 << 40, 7), (1 << 48, 8), (1 << 56 - 1, 8), (1 << 56, 9), (1 << 64 - 1, 9),
[INFO] [stderr]     |                                                        ^^^^^^^^^^^ help: consider parenthesizing your expression: `1 << (56 - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#precedence
[INFO] [stderr] 
[INFO] [stderr] warning: operator precedence can trip the unwary
[INFO] [stderr]    --> src/codec.rs:860:79
[INFO] [stderr]     |
[INFO] [stderr] 860 |             (1 << 32, 6), (1 << 40, 7), (1 << 48, 8), (1 << 56 - 1, 8), (1 << 56, 9), (1 << 64 - 1, 9),
[INFO] [stderr]     |                                                                                        ^^^^^^^^^^^ help: consider parenthesizing your expression: `1 << (64 - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#precedence
[INFO] [stderr] 
[INFO] [stderr] warning: operator precedence can trip the unwary
[INFO] [stderr]    --> src/codec.rs:862:21
[INFO] [stderr]     |
[INFO] [stderr] 862 |             (1 << 112, 16), (1 << 120 - 1, 16), (1 << 120, 17), (u128::max_value(), 17)
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: consider parenthesizing your expression: `1 << (120 - 1)`
[INFO] [stderr]     |
[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/codec.rs:875:17
[INFO] [stderr]     |
[INFO] [stderr] 875 |             (16384, 4), (1073741823, 4),
[INFO] [stderr]     |                          ^^^^^^^^^^ help: consider: `1_073_741_823`
[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/codec.rs:876:5
[INFO] [stderr]     |
[INFO] [stderr] 876 |             (1073741824, 5), (1 << 32 - 1, 5),
[INFO] [stderr]     |              ^^^^^^^^^^ help: consider: `1_073_741_824`
[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: operator precedence can trip the unwary
[INFO] [stderr]    --> src/codec.rs:876:22
[INFO] [stderr]     |
[INFO] [stderr] 876 |             (1073741824, 5), (1 << 32 - 1, 5),
[INFO] [stderr]     |                               ^^^^^^^^^^^ help: consider parenthesizing your expression: `1 << (32 - 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#precedence
[INFO] [stderr] 
[INFO] [stderr] warning: operator precedence can trip the unwary
[INFO] [stderr]    --> src/codec.rs:877:47
[INFO] [stderr]     |
[INFO] [stderr] 877 |             (1 << 32, 6), (1 << 40, 7), (1 << 48, 8), (1 << 56 - 1, 8), (1 << 56, 9), (u64::max_value(), 9)
[INFO] [stderr]     |                                                        ^^^^^^^^^^^ help: consider parenthesizing your expression: `1 << (56 - 1)`
[INFO] [stderr]     |
[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/codec.rs:888:75
[INFO] [stderr]     |
[INFO] [stderr] 888 |         let tests = [(0u32, 1usize), (63, 1), (64, 2), (16383, 2), (16384, 4), (1073741823, 4), (1073741824, 5), (u32::max_value(), 5)];
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^ help: consider: `1_073_741_823`
[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/codec.rs:888:92
[INFO] [stderr]     |
[INFO] [stderr] 888 |         let tests = [(0u32, 1usize), (63, 1), (64, 2), (16383, 2), (16384, 4), (1073741823, 4), (1073741824, 5), (u32::max_value(), 5)];
[INFO] [stderr]     |                                                                                                  ^^^^^^^^^^ help: consider: `1_073_741_824`
[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: length comparison to zero
[INFO] [stderr]   --> src/codec.rs:67:15
[INFO] [stderr]    |
[INFO] [stderr] 67 |             Some(v) if buffer.len() > 0 => {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!buffer.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: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:214:11
[INFO] [stderr]     |
[INFO] [stderr] 214 |             _ => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^ help: try: `u16::from(self.0)`
[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: some ranges overlap
[INFO] [stderr]    --> src/codec.rs:222:4
[INFO] [stderr]     |
[INFO] [stderr] 222 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_overlapping_arm)] on by default
[INFO] [stderr] note: overlaps with this
[INFO] [stderr]    --> src/codec.rs:223:4
[INFO] [stderr]     |
[INFO] [stderr] 223 |             0...0b00111111_11111111 => ((self.0 << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_overlapping_arm
[INFO] [stderr] 
[INFO] [stderr] warning: casting u16 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:224:11
[INFO] [stderr]     |
[INFO] [stderr] 224 |             _ => (((self.0 as u32) << 2) | 0b10).encode_to(dest),
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^ help: try: `u32::from(self.0)`
[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: some ranges overlap
[INFO] [stderr]    --> src/codec.rs:232:4
[INFO] [stderr]     |
[INFO] [stderr] 232 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: overlaps with this
[INFO] [stderr]    --> src/codec.rs:233:4
[INFO] [stderr]     |
[INFO] [stderr] 233 |             0...0b00111111_11111111 => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_overlapping_arm
[INFO] [stderr] 
[INFO] [stderr] warning: some ranges overlap
[INFO] [stderr]    --> src/codec.rs:246:4
[INFO] [stderr]     |
[INFO] [stderr] 246 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: overlaps with this
[INFO] [stderr]    --> src/codec.rs:247:4
[INFO] [stderr]     |
[INFO] [stderr] 247 |             0...0b00111111_11111111 => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_overlapping_arm
[INFO] [stderr] 
[INFO] [stderr] warning: some ranges overlap
[INFO] [stderr]    --> src/codec.rs:267:4
[INFO] [stderr]     |
[INFO] [stderr] 267 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: overlaps with this
[INFO] [stderr]    --> src/codec.rs:268:4
[INFO] [stderr]     |
[INFO] [stderr] 268 |             0...0b00111111_11111111 => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_overlapping_arm
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:307:9
[INFO] [stderr]     |
[INFO] [stderr] 307 |             0 => prefix as u16 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^ help: try: `u16::from(prefix)`
[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: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 |             0 => prefix as u32 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^ help: try: `u32::from(prefix)`
[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: casting u16 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:327:9
[INFO] [stderr]     |
[INFO] [stderr] 327 |             1 => u16::decode(&mut PrefixInput{prefix: Some(prefix), input})? as u32 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(u16::decode(&mut PrefixInput{prefix: Some(prefix), input})?)`
[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: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:346:9
[INFO] [stderr]     |
[INFO] [stderr] 346 |             0 => prefix as u64 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^ help: try: `u64::from(prefix)`
[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: casting u16 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:347:9
[INFO] [stderr]     |
[INFO] [stderr] 347 |             1 => u16::decode(&mut PrefixInput{prefix: Some(prefix), input})? as u64 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(u16::decode(&mut PrefixInput{prefix: Some(prefix), input})?)`
[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: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:348:9
[INFO] [stderr]     |
[INFO] [stderr] 348 |             2 => u32::decode(&mut PrefixInput{prefix: Some(prefix), input})? as u64 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(u32::decode(&mut PrefixInput{prefix: Some(prefix), input})?)`
[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: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:350:10
[INFO] [stderr]     |
[INFO] [stderr] 350 |                 4 => u32::decode(input)? as u64,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(u32::decode(input)?)`
[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: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:356:14
[INFO] [stderr]     |
[INFO] [stderr] 356 |                         res |= (input.read_byte()? as u64) << (i * 8);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(input.read_byte()?)`
[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: casting u8 to u128 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:369:9
[INFO] [stderr]     |
[INFO] [stderr] 369 |             0 => prefix as u128 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `u128::from(prefix)`
[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: casting u16 to u128 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:370:9
[INFO] [stderr]     |
[INFO] [stderr] 370 |             1 => u16::decode(&mut PrefixInput{prefix: Some(prefix), input})? as u128 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u128::from(u16::decode(&mut PrefixInput{prefix: Some(prefix), input})?)`
[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: casting u32 to u128 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:371:9
[INFO] [stderr]     |
[INFO] [stderr] 371 |             2 => u32::decode(&mut PrefixInput{prefix: Some(prefix), input})? as u128 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u128::from(u32::decode(&mut PrefixInput{prefix: Some(prefix), input})?)`
[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: casting u32 to u128 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:373:10
[INFO] [stderr]     |
[INFO] [stderr] 373 |                 4 => u32::decode(input)? as u128,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u128::from(u32::decode(input)?)`
[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: casting u64 to u128 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:374:10
[INFO] [stderr]     |
[INFO] [stderr] 374 |                 8 => u64::decode(input)? as u128,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u128::from(u64::decode(input)?)`
[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: casting u8 to u128 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:380:14
[INFO] [stderr]     |
[INFO] [stderr] 380 |                         res |= (input.read_byte()? as u128) << (i * 8);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u128::from(input.read_byte()?)`
[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: length comparison to zero
[INFO] [stderr]   --> src/codec.rs:67:15
[INFO] [stderr]    |
[INFO] [stderr] 67 |             Some(v) if buffer.len() > 0 => {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!buffer.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: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:214:11
[INFO] [stderr]     |
[INFO] [stderr] 214 |             _ => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^ help: try: `u16::from(self.0)`
[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: some ranges overlap
[INFO] [stderr]    --> src/codec.rs:222:4
[INFO] [stderr]     |
[INFO] [stderr] 222 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_overlapping_arm)] on by default
[INFO] [stderr] note: overlaps with this
[INFO] [stderr]    --> src/codec.rs:223:4
[INFO] [stderr]     |
[INFO] [stderr] 223 |             0...0b00111111_11111111 => ((self.0 << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_overlapping_arm
[INFO] [stderr] 
[INFO] [stderr] warning: casting u16 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:224:11
[INFO] [stderr]     |
[INFO] [stderr] 224 |             _ => (((self.0 as u32) << 2) | 0b10).encode_to(dest),
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^ help: try: `u32::from(self.0)`
[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: some ranges overlap
[INFO] [stderr]    --> src/codec.rs:232:4
[INFO] [stderr]     |
[INFO] [stderr] 232 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: overlaps with this
[INFO] [stderr]    --> src/codec.rs:233:4
[INFO] [stderr]     |
[INFO] [stderr] 233 |             0...0b00111111_11111111 => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_overlapping_arm
[INFO] [stderr] 
[INFO] [stderr] warning: some ranges overlap
[INFO] [stderr]    --> src/codec.rs:246:4
[INFO] [stderr]     |
[INFO] [stderr] 246 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: overlaps with this
[INFO] [stderr]    --> src/codec.rs:247:4
[INFO] [stderr]     |
[INFO] [stderr] 247 |             0...0b00111111_11111111 => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_overlapping_arm
[INFO] [stderr] 
[INFO] [stderr] warning: some ranges overlap
[INFO] [stderr]    --> src/codec.rs:267:4
[INFO] [stderr]     |
[INFO] [stderr] 267 |             0...0b00111111 => dest.push_byte((self.0 as u8) << 2),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: overlaps with this
[INFO] [stderr]    --> src/codec.rs:268:4
[INFO] [stderr]     |
[INFO] [stderr] 268 |             0...0b00111111_11111111 => (((self.0 as u16) << 2) | 0b01).encode_to(dest),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_overlapping_arm
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:307:9
[INFO] [stderr]     |
[INFO] [stderr] 307 |             0 => prefix as u16 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^ help: try: `u16::from(prefix)`
[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: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 |             0 => prefix as u32 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^ help: try: `u32::from(prefix)`
[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: casting u16 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:327:9
[INFO] [stderr]     |
[INFO] [stderr] 327 |             1 => u16::decode(&mut PrefixInput{prefix: Some(prefix), input})? as u32 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(u16::decode(&mut PrefixInput{prefix: Some(prefix), input})?)`
[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: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:346:9
[INFO] [stderr]     |
[INFO] [stderr] 346 |             0 => prefix as u64 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^ help: try: `u64::from(prefix)`
[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: casting u16 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:347:9
[INFO] [stderr]     |
[INFO] [stderr] 347 |             1 => u16::decode(&mut PrefixInput{prefix: Some(prefix), input})? as u64 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(u16::decode(&mut PrefixInput{prefix: Some(prefix), input})?)`
[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: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:348:9
[INFO] [stderr]     |
[INFO] [stderr] 348 |             2 => u32::decode(&mut PrefixInput{prefix: Some(prefix), input})? as u64 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(u32::decode(&mut PrefixInput{prefix: Some(prefix), input})?)`
[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: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:350:10
[INFO] [stderr]     |
[INFO] [stderr] 350 |                 4 => u32::decode(input)? as u64,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(u32::decode(input)?)`
[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: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:356:14
[INFO] [stderr]     |
[INFO] [stderr] 356 |                         res |= (input.read_byte()? as u64) << (i * 8);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(input.read_byte()?)`
[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: casting u8 to u128 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:369:9
[INFO] [stderr]     |
[INFO] [stderr] 369 |             0 => prefix as u128 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `u128::from(prefix)`
[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: casting u16 to u128 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:370:9
[INFO] [stderr]     |
[INFO] [stderr] 370 |             1 => u16::decode(&mut PrefixInput{prefix: Some(prefix), input})? as u128 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u128::from(u16::decode(&mut PrefixInput{prefix: Some(prefix), input})?)`
[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: casting u32 to u128 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:371:9
[INFO] [stderr]     |
[INFO] [stderr] 371 |             2 => u32::decode(&mut PrefixInput{prefix: Some(prefix), input})? as u128 >> 2,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u128::from(u32::decode(&mut PrefixInput{prefix: Some(prefix), input})?)`
[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: casting u32 to u128 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:373:10
[INFO] [stderr]     |
[INFO] [stderr] 373 |                 4 => u32::decode(input)? as u128,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u128::from(u32::decode(input)?)`
[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: casting u64 to u128 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:374:10
[INFO] [stderr]     |
[INFO] [stderr] 374 |                 8 => u64::decode(input)? as u128,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u128::from(u64::decode(input)?)`
[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: casting u8 to u128 may become silently lossy if types change
[INFO] [stderr]    --> src/codec.rs:380:14
[INFO] [stderr]     |
[INFO] [stderr] 380 |                         res |= (input.read_byte()? as u128) << (i * 8);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u128::from(input.read_byte()?)`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 2.56s
[INFO] running `"docker" "inspect" "0887d8dea51f9dfa43c9ec408cccec52c8b73741c01c31ece233cb7ccce73ed0"`
[INFO] running `"docker" "rm" "-f" "0887d8dea51f9dfa43c9ec408cccec52c8b73741c01c31ece233cb7ccce73ed0"`
[INFO] [stdout] 0887d8dea51f9dfa43c9ec408cccec52c8b73741c01c31ece233cb7ccce73ed0