[INFO] fetching crate binny 0.1.1...
[INFO] testing binny-0.1.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate binny 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate binny 0.1.1
[INFO] finished tweaking crates.io crate binny 0.1.1
[INFO] tweaked toml for crates.io crate binny 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate binny 0.1.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2301ec1d60d7dfc3db188e99576e5b7e9471888ce74e28d99a6af61aefa5b582
[INFO] running `Command { std: "docker" "start" "-a" "2301ec1d60d7dfc3db188e99576e5b7e9471888ce74e28d99a6af61aefa5b582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2301ec1d60d7dfc3db188e99576e5b7e9471888ce74e28d99a6af61aefa5b582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2301ec1d60d7dfc3db188e99576e5b7e9471888ce74e28d99a6af61aefa5b582", kill_on_drop: false }`
[INFO] [stdout] 2301ec1d60d7dfc3db188e99576e5b7e9471888ce74e28d99a6af61aefa5b582
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2c8c11c6274ed64beb9dac0fe606b86c85b9bf7d576692c47f56ea4667d7a04
[INFO] running `Command { std: "docker" "start" "-a" "b2c8c11c6274ed64beb9dac0fe606b86c85b9bf7d576692c47f56ea4667d7a04", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling binny v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `look_up`
[INFO] [stdout]    --> src/mp3.rs:151:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |                 let look_up = match layer
[INFO] [stdout]     |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_look_up`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `look_up`
[INFO] [stdout]    --> src/mp3.rs:159:21
[INFO] [stdout]     |
[INFO] [stdout] 159 |                 let look_up = match layer
[INFO] [stdout]     |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_look_up`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode_ext_band`
[INFO] [stdout]    --> src/mp3.rs:255:21
[INFO] [stdout]     |
[INFO] [stdout] 255 |                 let mode_ext_band = match (MODE_EXT & value) >> 4
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mode_ext_band`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intensity_stereo`
[INFO] [stdout]    --> src/mp3.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |                 let intensity_stereo: Option<bool> = None;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity_stereo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ms_stereo`
[INFO] [stdout]    --> src/mp3.rs:264:21
[INFO] [stdout]     |
[INFO] [stdout] 264 |                 let ms_stereo: Option<bool> = None;
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ms_stereo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode_ext_band`
[INFO] [stdout]    --> src/mp3.rs:268:21
[INFO] [stdout]     |
[INFO] [stdout] 268 |                 let mode_ext_band: Option<u8> = None;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mode_ext_band`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intensity_stereo`
[INFO] [stdout]    --> src/mp3.rs:269:21
[INFO] [stdout]     |
[INFO] [stdout] 269 |                 let intensity_stereo = match (MODE_EXT & value) >> 4
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity_stereo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ms_stereo`
[INFO] [stdout]    --> src/mp3.rs:277:21
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 let ms_stereo = match (MODE_EXT & value) >> 4
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ms_stereo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]    --> src/mp3.rs:345:22
[INFO] [stdout]     |
[INFO] [stdout] 345 |         while let Ok(bytes_read) = &data.read(&mut buffer)
[INFO] [stdout]     |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SYNC_WORD` is never used
[INFO] [stdout]  --> src/mp3.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const SYNC_WORD: u32 =          0xFF_E0_00_00; // 11111111 11100000 00000000 00000000
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MPEG_VERSION_ID` is never used
[INFO] [stdout]  --> src/mp3.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const MPEG_VERSION_ID: u32 =    0x00_18_00_00; // 00000000 00011000 00000000 00000000
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LAYER_DESCRIPTION` is never used
[INFO] [stdout]   --> src/mp3.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const LAYER_DESCRIPTION: u32 =  0x00_06_00_00; // 00000000 00000110 00000000 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PROTECTION_BIT` is never used
[INFO] [stdout]   --> src/mp3.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const PROTECTION_BIT: u32 =     0x00_01_00_00; // 00000000 00000001 00000000 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BITRATE_INDEX` is never used
[INFO] [stdout]   --> src/mp3.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const BITRATE_INDEX: u32 =      0x00_00_F0_00; // 00000000 00000000 11110000 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SAMPLE_FREQ` is never used
[INFO] [stdout]   --> src/mp3.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const SAMPLE_FREQ: u32 =        0x00_00_0C_00; // 00000000 00000000 00001100 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PADDING_BIT` is never used
[INFO] [stdout]   --> src/mp3.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const PADDING_BIT: u32 =        0x00_00_02_00; // 00000000 00000000 00000010 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PRIVATE_BIT` is never used
[INFO] [stdout]   --> src/mp3.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const PRIVATE_BIT: u32 =        0x00_00_01_00; // 00000000 00000000 00000001 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CHANNEL_MODE` is never used
[INFO] [stdout]   --> src/mp3.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const CHANNEL_MODE: u32 =       0x00_00_00_C0; // 00000000 00000000 00000000 11000000
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MODE_EXT` is never used
[INFO] [stdout]   --> src/mp3.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const MODE_EXT: u32 =           0x00_00_00_30; // 00000000 00000000 00000000 00110000
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `COPYRIGHT` is never used
[INFO] [stdout]   --> src/mp3.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const COPYRIGHT: u32 =          0x00_00_00_08; // 00000000 00000000 00000000 00001000
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ORIGINAL` is never used
[INFO] [stdout]   --> src/mp3.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const ORIGINAL: u32 =           0x00_00_00_04; // 00000000 00000000 00000000 00000100
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EMPHASIS` is never used
[INFO] [stdout]   --> src/mp3.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const EMPHASIS: u32 =           0x00_00_00_03; // 00000000 00000000 00000000 00000011
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MpegVersion` is never used
[INFO] [stdout]   --> src/mp3.rs:24:6
[INFO] [stdout]    |
[INFO] [stdout] 24 | enum MpegVersion
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LayerDesc` is never used
[INFO] [stdout]   --> src/mp3.rs:34:6
[INFO] [stdout]    |
[INFO] [stdout] 34 | enum LayerDesc
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ProtectionBit` is never used
[INFO] [stdout]   --> src/mp3.rs:43:6
[INFO] [stdout]    |
[INFO] [stdout] 43 | enum ProtectionBit
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ChannelMode` is never used
[INFO] [stdout]   --> src/mp3.rs:50:6
[INFO] [stdout]    |
[INFO] [stdout] 50 | enum ChannelMode
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Emphasis` is never used
[INFO] [stdout]   --> src/mp3.rs:58:6
[INFO] [stdout]    |
[INFO] [stdout] 58 | enum Emphasis
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FrameHeader` is never constructed
[INFO] [stdout]   --> src/mp3.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct FrameHeader
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FrameHeaderError` is never constructed
[INFO] [stdout]   --> src/mp3.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct FrameHeaderError
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/mp3.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | impl FrameHeaderError
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 95 | {
[INFO] [stdout] 96 |     fn new(msg: &str) -> FrameHeaderError
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `decode_bitrate`, `decode_sample_rate`, and `new` are never used
[INFO] [stdout]    --> src/mp3.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 118 | impl FrameHeader
[INFO] [stdout]     | ---------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 122 |     fn decode_bitrate(bits: u32, ver: MpegVersion, layer: LayerDesc) -> u32
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     fn decode_sample_rate(bits: u32, ver: MpegVersion) -> u32
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 |     fn new(slice: [u8; 4]) -> Result<FrameHeader, FrameHeaderError>
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Frame` is never constructed
[INFO] [stdout]    --> src/mp3.rs:321:8
[INFO] [stdout]     |
[INFO] [stdout] 321 | struct Frame
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mp3` is never constructed
[INFO] [stdout]    --> src/mp3.rs:328:8
[INFO] [stdout]     |
[INFO] [stdout] 328 | struct Mp3
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/mp3.rs:337:8
[INFO] [stdout]     |
[INFO] [stdout] 334 | impl Mp3
[INFO] [stdout]     | -------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 337 |     fn new(mut data: impl Read) -> Mp3
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "b2c8c11c6274ed64beb9dac0fe606b86c85b9bf7d576692c47f56ea4667d7a04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2c8c11c6274ed64beb9dac0fe606b86c85b9bf7d576692c47f56ea4667d7a04", kill_on_drop: false }`
[INFO] [stdout] b2c8c11c6274ed64beb9dac0fe606b86c85b9bf7d576692c47f56ea4667d7a04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 150885e95e0dca8cbfb330bf9077778bf7770479aea29021898e2eed0789ee80
[INFO] running `Command { std: "docker" "start" "-a" "150885e95e0dca8cbfb330bf9077778bf7770479aea29021898e2eed0789ee80", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stdout] warning: unused variable: `look_up`
[INFO] [stdout]    --> src/mp3.rs:151:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |                 let look_up = match layer
[INFO] [stdout]     |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_look_up`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `look_up`
[INFO] [stdout]    --> src/mp3.rs:159:21
[INFO] [stdout]     |
[INFO] [stdout] 159 |                 let look_up = match layer
[INFO] [stdout]     |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_look_up`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode_ext_band`
[INFO] [stdout]    --> src/mp3.rs:255:21
[INFO] [stdout]     |
[INFO] [stdout] 255 |                 let mode_ext_band = match (MODE_EXT & value) >> 4
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mode_ext_band`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intensity_stereo`
[INFO] [stdout]    --> src/mp3.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |                 let intensity_stereo: Option<bool> = None;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity_stereo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ms_stereo`
[INFO] [stdout]    --> src/mp3.rs:264:21
[INFO] [stdout]     |
[INFO] [stdout] 264 |                 let ms_stereo: Option<bool> = None;
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ms_stereo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode_ext_band`
[INFO] [stdout]    --> src/mp3.rs:268:21
[INFO] [stdout]     |
[INFO] [stdout] 268 |                 let mode_ext_band: Option<u8> = None;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mode_ext_band`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intensity_stereo`
[INFO] [stdout]    --> src/mp3.rs:269:21
[INFO] [stdout]     |
[INFO] [stdout] 269 |                 let intensity_stereo = match (MODE_EXT & value) >> 4
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity_stereo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ms_stereo`
[INFO] [stdout]    --> src/mp3.rs:277:21
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 let ms_stereo = match (MODE_EXT & value) >> 4
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ms_stereo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]    --> src/mp3.rs:345:22
[INFO] [stdout]     |
[INFO] [stdout] 345 |         while let Ok(bytes_read) = &data.read(&mut buffer)
[INFO] [stdout]     |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SYNC_WORD` is never used
[INFO] [stdout]  --> src/mp3.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const SYNC_WORD: u32 =          0xFF_E0_00_00; // 11111111 11100000 00000000 00000000
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MPEG_VERSION_ID` is never used
[INFO] [stdout]  --> src/mp3.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const MPEG_VERSION_ID: u32 =    0x00_18_00_00; // 00000000 00011000 00000000 00000000
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LAYER_DESCRIPTION` is never used
[INFO] [stdout]   --> src/mp3.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const LAYER_DESCRIPTION: u32 =  0x00_06_00_00; // 00000000 00000110 00000000 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PROTECTION_BIT` is never used
[INFO] [stdout]   --> src/mp3.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const PROTECTION_BIT: u32 =     0x00_01_00_00; // 00000000 00000001 00000000 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BITRATE_INDEX` is never used
[INFO] [stdout]   --> src/mp3.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const BITRATE_INDEX: u32 =      0x00_00_F0_00; // 00000000 00000000 11110000 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SAMPLE_FREQ` is never used
[INFO] [stdout]   --> src/mp3.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const SAMPLE_FREQ: u32 =        0x00_00_0C_00; // 00000000 00000000 00001100 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PADDING_BIT` is never used
[INFO] [stdout]   --> src/mp3.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const PADDING_BIT: u32 =        0x00_00_02_00; // 00000000 00000000 00000010 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PRIVATE_BIT` is never used
[INFO] [stdout]   --> src/mp3.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const PRIVATE_BIT: u32 =        0x00_00_01_00; // 00000000 00000000 00000001 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CHANNEL_MODE` is never used
[INFO] [stdout]   --> src/mp3.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const CHANNEL_MODE: u32 =       0x00_00_00_C0; // 00000000 00000000 00000000 11000000
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MODE_EXT` is never used
[INFO] [stdout]   --> src/mp3.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const MODE_EXT: u32 =           0x00_00_00_30; // 00000000 00000000 00000000 00110000
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `COPYRIGHT` is never used
[INFO] [stdout]   --> src/mp3.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const COPYRIGHT: u32 =          0x00_00_00_08; // 00000000 00000000 00000000 00001000
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ORIGINAL` is never used
[INFO] [stdout]   --> src/mp3.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const ORIGINAL: u32 =           0x00_00_00_04; // 00000000 00000000 00000000 00000100
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EMPHASIS` is never used
[INFO] [stdout]   --> src/mp3.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const EMPHASIS: u32 =           0x00_00_00_03; // 00000000 00000000 00000000 00000011
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MpegVersion` is never used
[INFO] [stdout]   --> src/mp3.rs:24:6
[INFO] [stdout]    |
[INFO] [stdout] 24 | enum MpegVersion
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LayerDesc` is never used
[INFO] [stdout]   --> src/mp3.rs:34:6
[INFO] [stdout]    |
[INFO] [stdout] 34 | enum LayerDesc
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ProtectionBit` is never used
[INFO] [stdout]   --> src/mp3.rs:43:6
[INFO] [stdout]    |
[INFO] [stdout] 43 | enum ProtectionBit
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ChannelMode` is never used
[INFO] [stdout]   --> src/mp3.rs:50:6
[INFO] [stdout]    |
[INFO] [stdout] 50 | enum ChannelMode
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Emphasis` is never used
[INFO] [stdout]   --> src/mp3.rs:58:6
[INFO] [stdout]    |
[INFO] [stdout] 58 | enum Emphasis
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FrameHeader` is never constructed
[INFO] [stdout]   --> src/mp3.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct FrameHeader
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FrameHeaderError` is never constructed
[INFO] [stdout]   --> src/mp3.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct FrameHeaderError
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/mp3.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | impl FrameHeaderError
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 95 | {
[INFO] [stdout] 96 |     fn new(msg: &str) -> FrameHeaderError
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `decode_bitrate`, `decode_sample_rate`, and `new` are never used
[INFO] [stdout]    --> src/mp3.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 118 | impl FrameHeader
[INFO] [stdout]     | ---------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 122 |     fn decode_bitrate(bits: u32, ver: MpegVersion, layer: LayerDesc) -> u32
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     fn decode_sample_rate(bits: u32, ver: MpegVersion) -> u32
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 |     fn new(slice: [u8; 4]) -> Result<FrameHeader, FrameHeaderError>
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling binny v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Frame` is never constructed
[INFO] [stdout]    --> src/mp3.rs:321:8
[INFO] [stdout]     |
[INFO] [stdout] 321 | struct Frame
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mp3` is never constructed
[INFO] [stdout]    --> src/mp3.rs:328:8
[INFO] [stdout]     |
[INFO] [stdout] 328 | struct Mp3
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/mp3.rs:337:8
[INFO] [stdout]     |
[INFO] [stdout] 334 | impl Mp3
[INFO] [stdout]     | -------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 337 |     fn new(mut data: impl Read) -> Mp3
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `look_up`
[INFO] [stdout]    --> src/mp3.rs:151:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |                 let look_up = match layer
[INFO] [stdout]     |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_look_up`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `look_up`
[INFO] [stdout]    --> src/mp3.rs:159:21
[INFO] [stdout]     |
[INFO] [stdout] 159 |                 let look_up = match layer
[INFO] [stdout]     |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_look_up`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode_ext_band`
[INFO] [stdout]    --> src/mp3.rs:255:21
[INFO] [stdout]     |
[INFO] [stdout] 255 |                 let mode_ext_band = match (MODE_EXT & value) >> 4
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mode_ext_band`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intensity_stereo`
[INFO] [stdout]    --> src/mp3.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |                 let intensity_stereo: Option<bool> = None;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity_stereo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ms_stereo`
[INFO] [stdout]    --> src/mp3.rs:264:21
[INFO] [stdout]     |
[INFO] [stdout] 264 |                 let ms_stereo: Option<bool> = None;
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ms_stereo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode_ext_band`
[INFO] [stdout]    --> src/mp3.rs:268:21
[INFO] [stdout]     |
[INFO] [stdout] 268 |                 let mode_ext_band: Option<u8> = None;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mode_ext_band`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intensity_stereo`
[INFO] [stdout]    --> src/mp3.rs:269:21
[INFO] [stdout]     |
[INFO] [stdout] 269 |                 let intensity_stereo = match (MODE_EXT & value) >> 4
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity_stereo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ms_stereo`
[INFO] [stdout]    --> src/mp3.rs:277:21
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 let ms_stereo = match (MODE_EXT & value) >> 4
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ms_stereo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]    --> src/mp3.rs:345:22
[INFO] [stdout]     |
[INFO] [stdout] 345 |         while let Ok(bytes_read) = &data.read(&mut buffer)
[INFO] [stdout]     |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SYNC_WORD` is never used
[INFO] [stdout]  --> src/mp3.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const SYNC_WORD: u32 =          0xFF_E0_00_00; // 11111111 11100000 00000000 00000000
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MPEG_VERSION_ID` is never used
[INFO] [stdout]  --> src/mp3.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const MPEG_VERSION_ID: u32 =    0x00_18_00_00; // 00000000 00011000 00000000 00000000
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LAYER_DESCRIPTION` is never used
[INFO] [stdout]   --> src/mp3.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const LAYER_DESCRIPTION: u32 =  0x00_06_00_00; // 00000000 00000110 00000000 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PROTECTION_BIT` is never used
[INFO] [stdout]   --> src/mp3.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const PROTECTION_BIT: u32 =     0x00_01_00_00; // 00000000 00000001 00000000 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BITRATE_INDEX` is never used
[INFO] [stdout]   --> src/mp3.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const BITRATE_INDEX: u32 =      0x00_00_F0_00; // 00000000 00000000 11110000 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SAMPLE_FREQ` is never used
[INFO] [stdout]   --> src/mp3.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const SAMPLE_FREQ: u32 =        0x00_00_0C_00; // 00000000 00000000 00001100 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PADDING_BIT` is never used
[INFO] [stdout]   --> src/mp3.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const PADDING_BIT: u32 =        0x00_00_02_00; // 00000000 00000000 00000010 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PRIVATE_BIT` is never used
[INFO] [stdout]   --> src/mp3.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const PRIVATE_BIT: u32 =        0x00_00_01_00; // 00000000 00000000 00000001 00000000
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CHANNEL_MODE` is never used
[INFO] [stdout]   --> src/mp3.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const CHANNEL_MODE: u32 =       0x00_00_00_C0; // 00000000 00000000 00000000 11000000
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MODE_EXT` is never used
[INFO] [stdout]   --> src/mp3.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const MODE_EXT: u32 =           0x00_00_00_30; // 00000000 00000000 00000000 00110000
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `COPYRIGHT` is never used
[INFO] [stdout]   --> src/mp3.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const COPYRIGHT: u32 =          0x00_00_00_08; // 00000000 00000000 00000000 00001000
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ORIGINAL` is never used
[INFO] [stdout]   --> src/mp3.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const ORIGINAL: u32 =           0x00_00_00_04; // 00000000 00000000 00000000 00000100
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EMPHASIS` is never used
[INFO] [stdout]   --> src/mp3.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const EMPHASIS: u32 =           0x00_00_00_03; // 00000000 00000000 00000000 00000011
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MpegVersion` is never used
[INFO] [stdout]   --> src/mp3.rs:24:6
[INFO] [stdout]    |
[INFO] [stdout] 24 | enum MpegVersion
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LayerDesc` is never used
[INFO] [stdout]   --> src/mp3.rs:34:6
[INFO] [stdout]    |
[INFO] [stdout] 34 | enum LayerDesc
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ProtectionBit` is never used
[INFO] [stdout]   --> src/mp3.rs:43:6
[INFO] [stdout]    |
[INFO] [stdout] 43 | enum ProtectionBit
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ChannelMode` is never used
[INFO] [stdout]   --> src/mp3.rs:50:6
[INFO] [stdout]    |
[INFO] [stdout] 50 | enum ChannelMode
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Emphasis` is never used
[INFO] [stdout]   --> src/mp3.rs:58:6
[INFO] [stdout]    |
[INFO] [stdout] 58 | enum Emphasis
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FrameHeader` is never constructed
[INFO] [stdout]   --> src/mp3.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct FrameHeader
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FrameHeaderError` is never constructed
[INFO] [stdout]   --> src/mp3.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct FrameHeaderError
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/mp3.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | impl FrameHeaderError
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 95 | {
[INFO] [stdout] 96 |     fn new(msg: &str) -> FrameHeaderError
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `decode_bitrate`, `decode_sample_rate`, and `new` are never used
[INFO] [stdout]    --> src/mp3.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 118 | impl FrameHeader
[INFO] [stdout]     | ---------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 122 |     fn decode_bitrate(bits: u32, ver: MpegVersion, layer: LayerDesc) -> u32
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     fn decode_sample_rate(bits: u32, ver: MpegVersion) -> u32
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 |     fn new(slice: [u8; 4]) -> Result<FrameHeader, FrameHeaderError>
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Frame` is never constructed
[INFO] [stdout]    --> src/mp3.rs:321:8
[INFO] [stdout]     |
[INFO] [stdout] 321 | struct Frame
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mp3` is never constructed
[INFO] [stdout]    --> src/mp3.rs:328:8
[INFO] [stdout]     |
[INFO] [stdout] 328 | struct Mp3
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/mp3.rs:337:8
[INFO] [stdout]     |
[INFO] [stdout] 334 | impl Mp3
[INFO] [stdout]     | -------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 337 |     fn new(mut data: impl Read) -> Mp3
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "150885e95e0dca8cbfb330bf9077778bf7770479aea29021898e2eed0789ee80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "150885e95e0dca8cbfb330bf9077778bf7770479aea29021898e2eed0789ee80", kill_on_drop: false }`
[INFO] [stdout] 150885e95e0dca8cbfb330bf9077778bf7770479aea29021898e2eed0789ee80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c9ed00597ae8f89a6e2d3a4b7c45d5bd479d493b4ac9a32a6a1a61fc625a4fad
[INFO] running `Command { std: "docker" "start" "-a" "c9ed00597ae8f89a6e2d3a4b7c45d5bd479d493b4ac9a32a6a1a61fc625a4fad", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr] warning: unused variable: `look_up`
[INFO] [stderr]    --> src/mp3.rs:151:21
[INFO] [stderr]     |
[INFO] [stderr] 151 |                 let look_up = match layer
[INFO] [stderr]     |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_look_up`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `look_up`
[INFO] [stderr]    --> src/mp3.rs:159:21
[INFO] [stderr]     |
[INFO] [stderr] 159 |                 let look_up = match layer
[INFO] [stderr]     |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_look_up`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode_ext_band`
[INFO] [stderr]    --> src/mp3.rs:255:21
[INFO] [stderr]     |
[INFO] [stderr] 255 |                 let mode_ext_band = match (MODE_EXT & value) >> 4
[INFO] [stderr]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mode_ext_band`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `intensity_stereo`
[INFO] [stderr]    --> src/mp3.rs:263:21
[INFO] [stderr]     |
[INFO] [stderr] 263 |                 let intensity_stereo: Option<bool> = None;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity_stereo`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ms_stereo`
[INFO] [stderr]    --> src/mp3.rs:264:21
[INFO] [stderr]     |
[INFO] [stderr] 264 |                 let ms_stereo: Option<bool> = None;
[INFO] [stderr]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ms_stereo`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode_ext_band`
[INFO] [stderr]    --> src/mp3.rs:268:21
[INFO] [stderr]     |
[INFO] [stderr] 268 |                 let mode_ext_band: Option<u8> = None;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mode_ext_band`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `intensity_stereo`
[INFO] [stderr]    --> src/mp3.rs:269:21
[INFO] [stderr]     |
[INFO] [stderr] 269 |                 let intensity_stereo = match (MODE_EXT & value) >> 4
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity_stereo`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ms_stereo`
[INFO] [stderr]    --> src/mp3.rs:277:21
[INFO] [stderr]     |
[INFO] [stderr] 277 |                 let ms_stereo = match (MODE_EXT & value) >> 4
[INFO] [stderr]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ms_stereo`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes_read`
[INFO] [stderr]    --> src/mp3.rs:345:22
[INFO] [stderr]     |
[INFO] [stderr] 345 |         while let Ok(bytes_read) = &data.read(&mut buffer)
[INFO] [stderr]     |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SYNC_WORD` is never used
[INFO] [stderr]  --> src/mp3.rs:8:7
[INFO] [stderr]   |
[INFO] [stderr] 8 | const SYNC_WORD: u32 =          0xFF_E0_00_00; // 11111111 11100000 00000000 00000000
[INFO] [stderr]   |       ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MPEG_VERSION_ID` is never used
[INFO] [stderr]  --> src/mp3.rs:9:7
[INFO] [stderr]   |
[INFO] [stderr] 9 | const MPEG_VERSION_ID: u32 =    0x00_18_00_00; // 00000000 00011000 00000000 00000000
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `LAYER_DESCRIPTION` is never used
[INFO] [stderr]   --> src/mp3.rs:10:7
[INFO] [stderr]    |
[INFO] [stderr] 10 | const LAYER_DESCRIPTION: u32 =  0x00_06_00_00; // 00000000 00000110 00000000 00000000
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `PROTECTION_BIT` is never used
[INFO] [stderr]   --> src/mp3.rs:11:7
[INFO] [stderr]    |
[INFO] [stderr] 11 | const PROTECTION_BIT: u32 =     0x00_01_00_00; // 00000000 00000001 00000000 00000000
[INFO] [stderr]    |       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `BITRATE_INDEX` is never used
[INFO] [stderr]   --> src/mp3.rs:12:7
[INFO] [stderr]    |
[INFO] [stderr] 12 | const BITRATE_INDEX: u32 =      0x00_00_F0_00; // 00000000 00000000 11110000 00000000
[INFO] [stderr]    |       ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SAMPLE_FREQ` is never used
[INFO] [stderr]   --> src/mp3.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 | const SAMPLE_FREQ: u32 =        0x00_00_0C_00; // 00000000 00000000 00001100 00000000
[INFO] [stderr]    |       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `PADDING_BIT` is never used
[INFO] [stderr]   --> src/mp3.rs:14:7
[INFO] [stderr]    |
[INFO] [stderr] 14 | const PADDING_BIT: u32 =        0x00_00_02_00; // 00000000 00000000 00000010 00000000
[INFO] [stderr]    |       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `PRIVATE_BIT` is never used
[INFO] [stderr]   --> src/mp3.rs:15:7
[INFO] [stderr]    |
[INFO] [stderr] 15 | const PRIVATE_BIT: u32 =        0x00_00_01_00; // 00000000 00000000 00000001 00000000
[INFO] [stderr]    |       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `CHANNEL_MODE` is never used
[INFO] [stderr]   --> src/mp3.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 | const CHANNEL_MODE: u32 =       0x00_00_00_C0; // 00000000 00000000 00000000 11000000
[INFO] [stderr]    |       ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MODE_EXT` is never used
[INFO] [stderr]   --> src/mp3.rs:17:7
[INFO] [stderr]    |
[INFO] [stderr] 17 | const MODE_EXT: u32 =           0x00_00_00_30; // 00000000 00000000 00000000 00110000
[INFO] [stderr]    |       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `COPYRIGHT` is never used
[INFO] [stderr]   --> src/mp3.rs:18:7
[INFO] [stderr]    |
[INFO] [stderr] 18 | const COPYRIGHT: u32 =          0x00_00_00_08; // 00000000 00000000 00000000 00001000
[INFO] [stderr]    |       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `ORIGINAL` is never used
[INFO] [stderr]   --> src/mp3.rs:19:7
[INFO] [stderr]    |
[INFO] [stderr] 19 | const ORIGINAL: u32 =           0x00_00_00_04; // 00000000 00000000 00000000 00000100
[INFO] [stderr]    |       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `EMPHASIS` is never used
[INFO] [stderr]   --> src/mp3.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 | const EMPHASIS: u32 =           0x00_00_00_03; // 00000000 00000000 00000000 00000011
[INFO] [stderr]    |       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `MpegVersion` is never used
[INFO] [stderr]   --> src/mp3.rs:24:6
[INFO] [stderr]    |
[INFO] [stderr] 24 | enum MpegVersion
[INFO] [stderr]    |      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `LayerDesc` is never used
[INFO] [stderr]   --> src/mp3.rs:34:6
[INFO] [stderr]    |
[INFO] [stderr] 34 | enum LayerDesc
[INFO] [stderr]    |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `ProtectionBit` is never used
[INFO] [stderr]   --> src/mp3.rs:43:6
[INFO] [stderr]    |
[INFO] [stderr] 43 | enum ProtectionBit
[INFO] [stderr]    |      ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `ChannelMode` is never used
[INFO] [stderr]   --> src/mp3.rs:50:6
[INFO] [stderr]    |
[INFO] [stderr] 50 | enum ChannelMode
[INFO] [stderr]    |      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Emphasis` is never used
[INFO] [stderr]   --> src/mp3.rs:58:6
[INFO] [stderr]    |
[INFO] [stderr] 58 | enum Emphasis
[INFO] [stderr]    |      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FrameHeader` is never constructed
[INFO] [stderr]   --> src/mp3.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 | struct FrameHeader
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FrameHeaderError` is never constructed
[INFO] [stderr]   --> src/mp3.rs:89:8
[INFO] [stderr]    |
[INFO] [stderr] 89 | struct FrameHeaderError
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/mp3.rs:96:8
[INFO] [stderr]    |
[INFO] [stderr] 94 | impl FrameHeaderError
[INFO] [stderr]    | --------------------- associated function in this implementation
[INFO] [stderr] 95 | {
[INFO] [stderr] 96 |     fn new(msg: &str) -> FrameHeaderError
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `decode_bitrate`, `decode_sample_rate`, and `new` are never used
[INFO] [stderr]    --> src/mp3.rs:122:8
[INFO] [stderr]     |
[INFO] [stderr] 118 | impl FrameHeader
[INFO] [stderr]     | ---------------- associated functions in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 122 |     fn decode_bitrate(bits: u32, ver: MpegVersion, layer: LayerDesc) -> u32
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 170 |     fn decode_sample_rate(bits: u32, ver: MpegVersion) -> u32
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 188 |     fn new(slice: [u8; 4]) -> Result<FrameHeader, FrameHeaderError>
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Frame` is never constructed
[INFO] [stderr]    --> src/mp3.rs:321:8
[INFO] [stderr]     |
[INFO] [stderr] 321 | struct Frame
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Mp3` is never constructed
[INFO] [stderr]    --> src/mp3.rs:328:8
[INFO] [stderr]     |
[INFO] [stderr] 328 | struct Mp3
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/mp3.rs:337:8
[INFO] [stderr]     |
[INFO] [stderr] 334 | impl Mp3
[INFO] [stderr]     | -------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 337 |     fn new(mut data: impl Read) -> Mp3
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `binny` (lib) generated 34 warnings (run `cargo fix --lib -p binny` to apply 9 suggestions)
[INFO] [stderr] warning: `binny` (lib test) generated 34 warnings (34 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/binny-b7779c3d42f5960a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests binny
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c9ed00597ae8f89a6e2d3a4b7c45d5bd479d493b4ac9a32a6a1a61fc625a4fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9ed00597ae8f89a6e2d3a4b7c45d5bd479d493b4ac9a32a6a1a61fc625a4fad", kill_on_drop: false }`
[INFO] [stdout] c9ed00597ae8f89a6e2d3a4b7c45d5bd479d493b4ac9a32a6a1a61fc625a4fad