[INFO] fetching crate symphonia-bundle-mp3 0.5.4...
[INFO] building symphonia-bundle-mp3-0.5.4 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate symphonia-bundle-mp3 0.5.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate symphonia-bundle-mp3 0.5.4
[INFO] finished tweaking crates.io crate symphonia-bundle-mp3 0.5.4
[INFO] tweaked toml for crates.io crate symphonia-bundle-mp3 0.5.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate symphonia-bundle-mp3 0.5.4 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b5a0f06746e4cb43aee7eef40989d70edaba8d07c5c4f24a1105542f2e374c6
[INFO] running `Command { std: "docker" "start" "-a" "0b5a0f06746e4cb43aee7eef40989d70edaba8d07c5c4f24a1105542f2e374c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b5a0f06746e4cb43aee7eef40989d70edaba8d07c5c4f24a1105542f2e374c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b5a0f06746e4cb43aee7eef40989d70edaba8d07c5c4f24a1105542f2e374c6", kill_on_drop: false }`
[INFO] [stdout] 0b5a0f06746e4cb43aee7eef40989d70edaba8d07c5c4f24a1105542f2e374c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23bb9d28b231ab3621314c0be942c436a74cb94fadd388e7f06398ecd6812208
[INFO] running `Command { std: "docker" "start" "-a" "23bb9d28b231ab3621314c0be942c436a74cb94fadd388e7f06398ecd6812208", kill_on_drop: false }`
[INFO] [stderr]    Compiling symphonia-core v0.5.4
[INFO] [stderr]    Compiling symphonia-metadata v0.5.4
[INFO] [stderr]    Compiling symphonia-bundle-mp3 v0.5.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `emphasis`, `is_copyrighted`, `is_original`, and `has_padding` are never read
[INFO] [stdout]    --> src/common.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout]  93 | pub struct FrameHeader {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 100 |     pub emphasis: Emphasis,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 101 |     pub is_copyrighted: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 102 |     pub is_original: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 103 |     pub has_padding: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FrameHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.17s
[INFO] running `Command { std: "docker" "inspect" "23bb9d28b231ab3621314c0be942c436a74cb94fadd388e7f06398ecd6812208", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23bb9d28b231ab3621314c0be942c436a74cb94fadd388e7f06398ecd6812208", kill_on_drop: false }`
[INFO] [stdout] 23bb9d28b231ab3621314c0be942c436a74cb94fadd388e7f06398ecd6812208
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 531b18e46d6b7f4a4206981e54bdaa9fa7721cfd5ba1cd5503bb45339c64843c
[INFO] running `Command { std: "docker" "start" "-a" "531b18e46d6b7f4a4206981e54bdaa9fa7721cfd5ba1cd5503bb45339c64843c", kill_on_drop: false }`
[INFO] [stdout] warning: fields `emphasis`, `is_copyrighted`, `is_original`, and `has_padding` are never read
[INFO] [stdout]    --> src/common.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout]  93 | pub struct FrameHeader {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 100 |     pub emphasis: Emphasis,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 101 |     pub is_copyrighted: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 102 |     pub is_original: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 103 |     pub has_padding: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FrameHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling symphonia-bundle-mp3 v0.5.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `emphasis`, `is_copyrighted`, `is_original`, and `has_padding` are never read
[INFO] [stdout]    --> src/common.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout]  93 | pub struct FrameHeader {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 100 |     pub emphasis: Emphasis,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 101 |     pub is_copyrighted: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 102 |     pub is_original: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 103 |     pub has_padding: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FrameHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "531b18e46d6b7f4a4206981e54bdaa9fa7721cfd5ba1cd5503bb45339c64843c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "531b18e46d6b7f4a4206981e54bdaa9fa7721cfd5ba1cd5503bb45339c64843c", kill_on_drop: false }`
[INFO] [stdout] 531b18e46d6b7f4a4206981e54bdaa9fa7721cfd5ba1cd5503bb45339c64843c