[INFO] cloning repository https://github.com/ptrzs3/music-metadata
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ptrzs3/music-metadata" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fptrzs3%2Fmusic-metadata", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fptrzs3%2Fmusic-metadata'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c27fabfeeb646158fd23463a1e60a52473fae33
[INFO] building ptrzs3/music-metadata against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fptrzs3%2Fmusic-metadata" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ptrzs3/music-metadata on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ptrzs3/music-metadata
[INFO] finished tweaking git repo https://github.com/ptrzs3/music-metadata
[INFO] tweaked toml for git repo https://github.com/ptrzs3/music-metadata written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ptrzs3/music-metadata 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de5390f6027a836f432524ddc2cf7921b1e61ba599c0d16c584e0dd4080e2253
[INFO] running `Command { std: "docker" "start" "-a" "de5390f6027a836f432524ddc2cf7921b1e61ba599c0d16c584e0dd4080e2253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de5390f6027a836f432524ddc2cf7921b1e61ba599c0d16c584e0dd4080e2253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de5390f6027a836f432524ddc2cf7921b1e61ba599c0d16c584e0dd4080e2253", kill_on_drop: false }`
[INFO] [stdout] de5390f6027a836f432524ddc2cf7921b1e61ba599c0d16c584e0dd4080e2253
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2686fc17b49cc8d16e1923ccf3b578f5168738db1cf351a6013580a0db854d5
[INFO] running `Command { std: "docker" "start" "-a" "b2686fc17b49cc8d16e1923ccf3b578f5168738db1cf351a6013580a0db854d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling music-metadata v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `version` is never read
[INFO] [stdout]   --> src/id3/frames/header.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct FrameHeader {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub version: Version,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `comment_body` is never read
[INFO] [stdout]   --> src/ogg/ogg_vorbis_comment.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct CommentHeader {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub comment_body: CommentBody,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CommentHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "b2686fc17b49cc8d16e1923ccf3b578f5168738db1cf351a6013580a0db854d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2686fc17b49cc8d16e1923ccf3b578f5168738db1cf351a6013580a0db854d5", kill_on_drop: false }`
[INFO] [stdout] b2686fc17b49cc8d16e1923ccf3b578f5168738db1cf351a6013580a0db854d5
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb91b2f95b5782ad29b1e7216927a624e241aab30ba0926aa8254b41bfb42057
[INFO] running `Command { std: "docker" "start" "-a" "cb91b2f95b5782ad29b1e7216927a624e241aab30ba0926aa8254b41bfb42057", kill_on_drop: false }`
[INFO] [stderr]    Compiling music-metadata v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `version` is never read
[INFO] [stdout]   --> src/id3/frames/header.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct FrameHeader {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub version: Version,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `comment_body` is never read
[INFO] [stdout]   --> src/ogg/ogg_vorbis_comment.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct CommentHeader {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub comment_body: CommentBody,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CommentHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `version` is never read
[INFO] [stdout]   --> src/id3/frames/header.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct FrameHeader {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub version: Version,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `comment_body` is never read
[INFO] [stdout]   --> src/ogg/ogg_vorbis_comment.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct CommentHeader {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub comment_body: CommentBody,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CommentHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "cb91b2f95b5782ad29b1e7216927a624e241aab30ba0926aa8254b41bfb42057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb91b2f95b5782ad29b1e7216927a624e241aab30ba0926aa8254b41bfb42057", kill_on_drop: false }`
[INFO] [stdout] cb91b2f95b5782ad29b1e7216927a624e241aab30ba0926aa8254b41bfb42057