[INFO] cloning repository https://github.com/kurotakazuki/wav_ast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kurotakazuki/wav_ast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurotakazuki%2Fwav_ast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurotakazuki%2Fwav_ast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f92a132c4e3be038bc35f693ce365784a5b26cf
[INFO] checking kurotakazuki/wav_ast against master#1b8f2e46e14b08208a53585570edd9206374aae8 for pr-155418-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurotakazuki%2Fwav_ast" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kurotakazuki/wav_ast
[INFO] finished tweaking git repo https://github.com/kurotakazuki/wav_ast
[INFO] tweaked toml for git repo https://github.com/kurotakazuki/wav_ast written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kurotakazuki/wav_ast on toolchain 1b8f2e46e14b08208a53585570edd9206374aae8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1b8f2e46e14b08208a53585570edd9206374aae8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kurotakazuki/wav_ast already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1b8f2e46e14b08208a53585570edd9206374aae8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mpl v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1b8f2e46e14b08208a53585570edd9206374aae8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ad10df73f6936d3c1f53116667f72c2647fe1ee776296e5db74f69d27eb35f9
[INFO] running `Command { std: "docker" "start" "-a" "5ad10df73f6936d3c1f53116667f72c2647fe1ee776296e5db74f69d27eb35f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ad10df73f6936d3c1f53116667f72c2647fe1ee776296e5db74f69d27eb35f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ad10df73f6936d3c1f53116667f72c2647fe1ee776296e5db74f69d27eb35f9", kill_on_drop: false }`
[INFO] [stdout] 5ad10df73f6936d3c1f53116667f72c2647fe1ee776296e5db74f69d27eb35f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1b8f2e46e14b08208a53585570edd9206374aae8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52e2c7f355e33b2ada74c0739431b07f80a6895fab02fddf5ddab712db8a4774
[INFO] running `Command { std: "docker" "start" "-a" "52e2c7f355e33b2ada74c0739431b07f80a6895fab02fddf5ddab712db8a4774", kill_on_drop: false }`
[INFO] [stderr]    Compiling wav_ast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking mpl v0.1.0
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> src/chunk/data.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct DataChunk {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 6 |     pub chunk_header: ChunkHeader,
[INFO] [stdout] 7 |     pub data: Vec<Vec<Sample>>,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DataChunk` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `valid_bits_per_sample`, `samples_per_block`, `reserved`, `channel_mask`, and `sub_format` are never read
[INFO] [stdout]   --> src/chunk/fmt.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct WaveFormatExtensible {
[INFO] [stdout]    |            -------------------- fields in this struct
[INFO] [stdout] 41 |     pub valid_bits_per_sample: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 42 |     pub samples_per_block: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 43 |     pub reserved: u16,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 44 |     pub channel_mask: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 45 |     pub sub_format: u128,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WaveFormatExtensible` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> src/chunk/other.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct OtherChunk<'a> {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 5 |     pub chunk_header: ChunkHeader,
[INFO] [stdout] 6 |     pub data: &'a [u8],
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `OtherChunk` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `form_type` is never read
[INFO] [stdout]  --> src/chunk/riff.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct RiffChunk {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 5 |     pub chunk_header: ChunkHeader,
[INFO] [stdout] 6 |     pub form_type: FourCC,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `RiffChunk` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> src/chunk/data.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct DataChunk {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 6 |     pub chunk_header: ChunkHeader,
[INFO] [stdout] 7 |     pub data: Vec<Vec<Sample>>,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DataChunk` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `valid_bits_per_sample`, `samples_per_block`, `reserved`, `channel_mask`, and `sub_format` are never read
[INFO] [stdout]   --> src/chunk/fmt.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct WaveFormatExtensible {
[INFO] [stdout]    |            -------------------- fields in this struct
[INFO] [stdout] 41 |     pub valid_bits_per_sample: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 42 |     pub samples_per_block: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 43 |     pub reserved: u16,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 44 |     pub channel_mask: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 45 |     pub sub_format: u128,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WaveFormatExtensible` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> src/chunk/other.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct OtherChunk<'a> {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 5 |     pub chunk_header: ChunkHeader,
[INFO] [stdout] 6 |     pub data: &'a [u8],
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `OtherChunk` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `form_type` is never read
[INFO] [stdout]  --> src/chunk/riff.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct RiffChunk {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 5 |     pub chunk_header: ChunkHeader,
[INFO] [stdout] 6 |     pub form_type: FourCC,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `RiffChunk` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/sample.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 |     U8(u8),
[INFO] [stdout]   |     -- ^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Sample` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 3 -     U8(u8),
[INFO] [stdout] 3 +     U8(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/sample.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     U16(u16),
[INFO] [stdout]   |     --- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Sample` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 4 -     U16(u16),
[INFO] [stdout] 4 +     U16(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/sample.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     F32(f32),
[INFO] [stdout]   |     --- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Sample` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     F32(f32),
[INFO] [stdout] 5 +     F32(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/sample.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     F64(f64),
[INFO] [stdout]   |     --- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Sample` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 -     F64(f64),
[INFO] [stdout] 6 +     F64(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/sample.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 |     U8(u8),
[INFO] [stdout]   |     -- ^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Sample` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 3 -     U8(u8),
[INFO] [stdout] 3 +     U8(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/sample.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     U16(u16),
[INFO] [stdout]   |     --- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Sample` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 4 -     U16(u16),
[INFO] [stdout] 4 +     U16(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/sample.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     F32(f32),
[INFO] [stdout]   |     --- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Sample` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     F32(f32),
[INFO] [stdout] 5 +     F32(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/sample.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     F64(f64),
[INFO] [stdout]   |     --- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Sample` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 -     F64(f64),
[INFO] [stdout] 6 +     F64(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "52e2c7f355e33b2ada74c0739431b07f80a6895fab02fddf5ddab712db8a4774", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52e2c7f355e33b2ada74c0739431b07f80a6895fab02fddf5ddab712db8a4774", kill_on_drop: false }`
[INFO] [stdout] 52e2c7f355e33b2ada74c0739431b07f80a6895fab02fddf5ddab712db8a4774
