[INFO] cloning repository https://github.com/SaiintBrisson/mp3_decoder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SaiintBrisson/mp3_decoder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaiintBrisson%2Fmp3_decoder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaiintBrisson%2Fmp3_decoder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0fb370bb4b215e5ab05310848811ab0351db56c
[INFO] checking SaiintBrisson/mp3_decoder against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaiintBrisson%2Fmp3_decoder" "/workspace/builds/worker-111/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-111/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SaiintBrisson/mp3_decoder on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SaiintBrisson/mp3_decoder
[INFO] finished tweaking git repo https://github.com/SaiintBrisson/mp3_decoder
[INFO] tweaked toml for git repo https://github.com/SaiintBrisson/mp3_decoder written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c0b82d5d81bdf7d92201ff94b51430e5cabde556ad96de48103aea8889e913b
[INFO] running `Command { std: "docker" "start" "-a" "3c0b82d5d81bdf7d92201ff94b51430e5cabde556ad96de48103aea8889e913b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c0b82d5d81bdf7d92201ff94b51430e5cabde556ad96de48103aea8889e913b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c0b82d5d81bdf7d92201ff94b51430e5cabde556ad96de48103aea8889e913b", kill_on_drop: false }`
[INFO] [stdout] 3c0b82d5d81bdf7d92201ff94b51430e5cabde556ad96de48103aea8889e913b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2558021c0f524e3a219efe8b63ef4fcec808c1224707e9b64a1ebf51ed3b05ef
[INFO] running `Command { std: "docker" "start" "-a" "2558021c0f524e3a219efe8b63ef4fcec808c1224707e9b64a1ebf51ed3b05ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling encoding_rs v0.8.29
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking mp3-reader v0.1.0 (/opt/rustwide/workdir/mp3-reader)
[INFO] [stderr]     Checking id3-reader v0.1.0 (/opt/rustwide/workdir/id3-reader)
[INFO] [stdout] warning: field is never read: `year`
[INFO] [stdout]  --> id3-reader/src/v1/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     year: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `year`
[INFO] [stdout]  --> id3-reader/src/v1/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     year: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `album_track`
[INFO] [stdout]   --> id3-reader/src/v1/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     album_track: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `album_track`
[INFO] [stdout]   --> id3-reader/src/v1/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     album_track: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `song_genre`
[INFO] [stdout]   --> id3-reader/src/v1/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     song_genre: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `header`
[INFO] [stdout]  --> id3-reader/src/v2/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     header: header::Header,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `song_genre`
[INFO] [stdout]   --> id3-reader/src/v1/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     song_genre: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `header`
[INFO] [stdout]  --> id3-reader/src/v2/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     header: header::Header,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `frames`
[INFO] [stdout]  --> id3-reader/src/v2/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     frames: Vec<frame::Frame>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `frames`
[INFO] [stdout]  --> id3-reader/src/v2/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     frames: Vec<frame::Frame>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.53s
[INFO] running `Command { std: "docker" "inspect" "2558021c0f524e3a219efe8b63ef4fcec808c1224707e9b64a1ebf51ed3b05ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2558021c0f524e3a219efe8b63ef4fcec808c1224707e9b64a1ebf51ed3b05ef", kill_on_drop: false }`
[INFO] [stdout] 2558021c0f524e3a219efe8b63ef4fcec808c1224707e9b64a1ebf51ed3b05ef