[INFO] cloning repository https://github.com/LiamTheProgrammer/rust_wav_reader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LiamTheProgrammer/rust_wav_reader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiamTheProgrammer%2Frust_wav_reader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiamTheProgrammer%2Frust_wav_reader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 02953d771a1f56c611ccdb7cd304de07fae63c22
[INFO] testing LiamTheProgrammer/rust_wav_reader against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiamTheProgrammer%2Frust_wav_reader" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LiamTheProgrammer/rust_wav_reader on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LiamTheProgrammer/rust_wav_reader
[INFO] finished tweaking git repo https://github.com/LiamTheProgrammer/rust_wav_reader
[INFO] tweaked toml for git repo https://github.com/LiamTheProgrammer/rust_wav_reader written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/LiamTheProgrammer/rust_wav_reader already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a8dbc8ec9afc4074a5f16ea52896e959d783e15ab9dc108d53cfdcfa6831cc8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5a8dbc8ec9afc4074a5f16ea52896e959d783e15ab9dc108d53cfdcfa6831cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a8dbc8ec9afc4074a5f16ea52896e959d783e15ab9dc108d53cfdcfa6831cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a8dbc8ec9afc4074a5f16ea52896e959d783e15ab9dc108d53cfdcfa6831cc8", kill_on_drop: false }`
[INFO] [stdout] 5a8dbc8ec9afc4074a5f16ea52896e959d783e15ab9dc108d53cfdcfa6831cc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 248d3baef8e9101e543ef8993a815aa07828a53d35781fb63ff08511db422258
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "248d3baef8e9101e543ef8993a815aa07828a53d35781fb63ff08511db422258", kill_on_drop: false }`
[INFO] [stderr]    Compiling wav_reader v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `origoffs`
[INFO] [stdout]    --> src/lib.rs:248:13
[INFO] [stdout]     |
[INFO] [stdout] 248 |                                 let origoffs = id3_data_offs.clone();
[INFO] [stdout]     |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_origoffs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/lib.rs:250:13
[INFO] [stdout]     |
[INFO] [stdout] 250 |                                 let size = u32::from_be_bytes(four_byte_slice(&buf[id3_data_offs + 1..id3_data_offs + 5]));
[INFO] [stdout]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fsizebuf`
[INFO] [stdout]    --> src/lib.rs:508:7
[INFO] [stdout]     |
[INFO] [stdout] 508 |         let fsizebuf = (data.len() as u32).to_be_bytes();
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fsizebuf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:481:6
[INFO] [stdout]     |
[INFO] [stdout] 481 |     let mut a = a2.info.clone();
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INFO_ID`
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const INFO_ID: u32 = 0x494E464F;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ICMS`
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const ICMS: u32 = 0x49434D53;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "248d3baef8e9101e543ef8993a815aa07828a53d35781fb63ff08511db422258", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "248d3baef8e9101e543ef8993a815aa07828a53d35781fb63ff08511db422258", kill_on_drop: false }`
[INFO] [stdout] 248d3baef8e9101e543ef8993a815aa07828a53d35781fb63ff08511db422258
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e47b2a2b517c55bada6bedd493a681d290c33a301337b3d8d5747d83f478ca5f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e47b2a2b517c55bada6bedd493a681d290c33a301337b3d8d5747d83f478ca5f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unused variable: `origoffs`
[INFO] [stdout]    --> src/lib.rs:248:13
[INFO] [stdout]     |
[INFO] [stdout] 248 |                                 let origoffs = id3_data_offs.clone();
[INFO] [stdout]     |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_origoffs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wav_reader v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/lib.rs:250:13
[INFO] [stdout]     |
[INFO] [stdout] 250 |                                 let size = u32::from_be_bytes(four_byte_slice(&buf[id3_data_offs + 1..id3_data_offs + 5]));
[INFO] [stdout]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fsizebuf`
[INFO] [stdout]    --> src/lib.rs:508:7
[INFO] [stdout]     |
[INFO] [stdout] 508 |         let fsizebuf = (data.len() as u32).to_be_bytes();
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fsizebuf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:481:6
[INFO] [stdout]     |
[INFO] [stdout] 481 |     let mut a = a2.info.clone();
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INFO_ID`
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const INFO_ID: u32 = 0x494E464F;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ICMS`
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const ICMS: u32 = 0x49434D53;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `origoffs`
[INFO] [stdout]    --> src/lib.rs:248:13
[INFO] [stdout]     |
[INFO] [stdout] 248 |                                 let origoffs = id3_data_offs.clone();
[INFO] [stdout]     |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_origoffs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/lib.rs:250:13
[INFO] [stdout]     |
[INFO] [stdout] 250 |                                 let size = u32::from_be_bytes(four_byte_slice(&buf[id3_data_offs + 1..id3_data_offs + 5]));
[INFO] [stdout]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fsizebuf`
[INFO] [stdout]    --> src/lib.rs:508:7
[INFO] [stdout]     |
[INFO] [stdout] 508 |         let fsizebuf = (data.len() as u32).to_be_bytes();
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fsizebuf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:481:6
[INFO] [stdout]     |
[INFO] [stdout] 481 |     let mut a = a2.info.clone();
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INFO_ID`
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const INFO_ID: u32 = 0x494E464F;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ICMS`
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const ICMS: u32 = 0x49434D53;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `Command { std: "docker" "inspect" "e47b2a2b517c55bada6bedd493a681d290c33a301337b3d8d5747d83f478ca5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e47b2a2b517c55bada6bedd493a681d290c33a301337b3d8d5747d83f478ca5f", kill_on_drop: false }`
[INFO] [stdout] e47b2a2b517c55bada6bedd493a681d290c33a301337b3d8d5747d83f478ca5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 403e24e9f6c5948861c28729b38d958776f92aa2b82ef85289811adacb7cb445
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "403e24e9f6c5948861c28729b38d958776f92aa2b82ef85289811adacb7cb445", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `origoffs`
[INFO] [stderr]    --> src/lib.rs:248:13
[INFO] [stderr]     |
[INFO] [stderr] 248 |                                 let origoffs = id3_data_offs.clone();
[INFO] [stderr]     |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_origoffs`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]    --> src/lib.rs:250:13
[INFO] [stderr]     |
[INFO] [stderr] 250 |                                 let size = u32::from_be_bytes(four_byte_slice(&buf[id3_data_offs + 1..id3_data_offs + 5]));
[INFO] [stderr]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fsizebuf`
[INFO] [stderr]    --> src/lib.rs:508:7
[INFO] [stderr]     |
[INFO] [stderr] 508 |         let fsizebuf = (data.len() as u32).to_be_bytes();
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fsizebuf`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:481:6
[INFO] [stderr]     |
[INFO] [stderr] 481 |     let mut a = a2.info.clone();
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `INFO_ID`
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const INFO_ID: u32 = 0x494E464F;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `ICMS`
[INFO] [stderr]   --> src/lib.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const ICMS: u32 = 0x49434D53;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `origoffs`
[INFO] [stderr]    --> src/lib.rs:248:13
[INFO] [stderr]     |
[INFO] [stderr] 248 |                                 let origoffs = id3_data_offs.clone();
[INFO] [stderr]     |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_origoffs`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]    --> src/lib.rs:250:13
[INFO] [stderr]     |
[INFO] [stderr] 250 |                                 let size = u32::from_be_bytes(four_byte_slice(&buf[id3_data_offs + 1..id3_data_offs + 5]));
[INFO] [stderr]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fsizebuf`
[INFO] [stderr]    --> src/lib.rs:508:7
[INFO] [stderr]     |
[INFO] [stderr] 508 |         let fsizebuf = (data.len() as u32).to_be_bytes();
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fsizebuf`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:481:6
[INFO] [stderr]     |
[INFO] [stderr] 481 |     let mut a = a2.info.clone();
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `INFO_ID`
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const INFO_ID: u32 = 0x494E464F;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `ICMS`
[INFO] [stderr]   --> src/lib.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const ICMS: u32 = 0x49434D53;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/wav_reader-a48b88c04c4c3691
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wav_reader
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "403e24e9f6c5948861c28729b38d958776f92aa2b82ef85289811adacb7cb445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "403e24e9f6c5948861c28729b38d958776f92aa2b82ef85289811adacb7cb445", kill_on_drop: false }`
[INFO] [stdout] 403e24e9f6c5948861c28729b38d958776f92aa2b82ef85289811adacb7cb445
