[INFO] cloning repository https://github.com/max-kay/song
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/max-kay/song" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-kay%2Fsong", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-kay%2Fsong'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b5dd7c1a76b74812b51fd8dd08751871b29da77d
[INFO] testing max-kay/song against try#6c5b2f071bf9fe3a4b05942f31d42d076171aa61 for pr-115315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-kay%2Fsong" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/max-kay/song on toolchain 6c5b2f071bf9fe3a4b05942f31d42d076171aa61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/max-kay/song
[INFO] finished tweaking git repo https://github.com/max-kay/song
[INFO] tweaked toml for git repo https://github.com/max-kay/song written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/max-kay/song 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" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99cc6e4a2a47832e41b5927b63efc78aa6fed2927baf609003eb768e4dd99e82
[INFO] running `Command { std: "docker" "start" "-a" "99cc6e4a2a47832e41b5927b63efc78aa6fed2927baf609003eb768e4dd99e82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99cc6e4a2a47832e41b5927b63efc78aa6fed2927baf609003eb768e4dd99e82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99cc6e4a2a47832e41b5927b63efc78aa6fed2927baf609003eb768e4dd99e82", kill_on_drop: false }`
[INFO] [stdout] 99cc6e4a2a47832e41b5927b63efc78aa6fed2927baf609003eb768e4dd99e82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fc7c85db475532fc35f6f88acde56ff9a7676e01084187cc09707535bac818e
[INFO] running `Command { std: "docker" "start" "-a" "4fc7c85db475532fc35f6f88acde56ff9a7676e01084187cc09707535bac818e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]    Compiling once_cell v1.13.1
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling serde_derive v1.0.138
[INFO] [stderr]    Compiling serde v1.0.138
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling thiserror v1.0.35
[INFO] [stderr]    Compiling smallvec v1.9.0
[INFO] [stderr]    Compiling either v1.7.0
[INFO] [stderr]    Compiling cpal v0.14.0
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling itertools v0.10.4
[INFO] [stderr]    Compiling permutation v0.4.1
[INFO] [stderr]    Compiling hound v3.5.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.9
[INFO] [stderr]    Compiling lock_api v0.4.8
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.5
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling nix v0.23.1
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.35
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling midly v0.5.2
[INFO] [stderr]    Compiling alsa v0.6.0
[INFO] [stderr]    Compiling ron v0.8.0
[INFO] [stderr]    Compiling song v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `cpal::Stream`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cpal::Stream;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `beats_per_bar`, `beat_value`, and `n32_p_beat` are never read
[INFO] [stdout]    --> src/io.rs:361:5
[INFO] [stdout]     |
[INFO] [stdout] 360 | pub struct MidiSig {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 361 |     beats_per_bar: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 362 |     beat_value: u8,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 363 |     n32_p_beat: u8,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MidiSig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tick`, `key`, and `vel` are never read
[INFO] [stdout]    --> src/io.rs:565:5
[INFO] [stdout]     |
[INFO] [stdout] 564 | struct AfterTouch {
[INFO] [stdout]     |        ---------- fields in this struct
[INFO] [stdout] 565 |     tick: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 566 |     key: u8,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 567 |     vel: u8,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AfterTouch` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.88s
[INFO] running `Command { std: "docker" "inspect" "4fc7c85db475532fc35f6f88acde56ff9a7676e01084187cc09707535bac818e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fc7c85db475532fc35f6f88acde56ff9a7676e01084187cc09707535bac818e", kill_on_drop: false }`
[INFO] [stdout] 4fc7c85db475532fc35f6f88acde56ff9a7676e01084187cc09707535bac818e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8840d5e616c2fdc3792fdb7d4eeb9ceb0a8d10411830e59281991508c6d14c3b
[INFO] running `Command { std: "docker" "start" "-a" "8840d5e616c2fdc3792fdb7d4eeb9ceb0a8d10411830e59281991508c6d14c3b", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `cpal::Stream`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cpal::Stream;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `beats_per_bar`, `beat_value`, and `n32_p_beat` are never read
[INFO] [stdout]    --> src/io.rs:361:5
[INFO] [stdout]     |
[INFO] [stdout] 360 | pub struct MidiSig {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 361 |     beats_per_bar: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 362 |     beat_value: u8,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 363 |     n32_p_beat: u8,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MidiSig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tick`, `key`, and `vel` are never read
[INFO] [stdout]    --> src/io.rs:565:5
[INFO] [stdout]     |
[INFO] [stdout] 564 | struct AfterTouch {
[INFO] [stdout]     |        ---------- fields in this struct
[INFO] [stdout] 565 |     tick: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 566 |     key: u8,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 567 |     vel: u8,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AfterTouch` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling song v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `cpal::Stream`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cpal::Stream;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `beats_per_bar`, `beat_value`, and `n32_p_beat` are never read
[INFO] [stdout]    --> src/io.rs:361:5
[INFO] [stdout]     |
[INFO] [stdout] 360 | pub struct MidiSig {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 361 |     beats_per_bar: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 362 |     beat_value: u8,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 363 |     n32_p_beat: u8,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MidiSig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tick`, `key`, and `vel` are never read
[INFO] [stdout]    --> src/io.rs:565:5
[INFO] [stdout]     |
[INFO] [stdout] 564 | struct AfterTouch {
[INFO] [stdout]     |        ---------- fields in this struct
[INFO] [stdout] 565 |     tick: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 566 |     key: u8,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 567 |     vel: u8,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AfterTouch` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "8840d5e616c2fdc3792fdb7d4eeb9ceb0a8d10411830e59281991508c6d14c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8840d5e616c2fdc3792fdb7d4eeb9ceb0a8d10411830e59281991508c6d14c3b", kill_on_drop: false }`
[INFO] [stdout] 8840d5e616c2fdc3792fdb7d4eeb9ceb0a8d10411830e59281991508c6d14c3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 79f45aadbed46b9e717899e1ce0c43e5074afacb375237bccfa4ff900214a3bc
[INFO] running `Command { std: "docker" "start" "-a" "79f45aadbed46b9e717899e1ce0c43e5074afacb375237bccfa4ff900214a3bc", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `cpal::Stream`
[INFO] [stderr]  --> src/lib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use cpal::Stream;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `beats_per_bar`, `beat_value`, and `n32_p_beat` are never read
[INFO] [stderr]    --> src/io.rs:361:5
[INFO] [stderr]     |
[INFO] [stderr] 360 | pub struct MidiSig {
[INFO] [stderr]     |            ------- fields in this struct
[INFO] [stderr] 361 |     beats_per_bar: u8,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 362 |     beat_value: u8,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 363 |     n32_p_beat: u8,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `MidiSig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `tick`, `key`, and `vel` are never read
[INFO] [stderr]    --> src/io.rs:565:5
[INFO] [stderr]     |
[INFO] [stderr] 564 | struct AfterTouch {
[INFO] [stderr]     |        ---------- fields in this struct
[INFO] [stderr] 565 |     tick: u32,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 566 |     key: u8,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 567 |     vel: u8,
[INFO] [stderr]     |     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `AfterTouch` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `song` (lib) generated 3 warnings (run `cargo fix --lib -p song` to apply 1 suggestion)
[INFO] [stderr] warning: `song` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/song-f67b4957a72bff64)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test utils::test::pow2_test ... ok
[INFO] [stdout] test utils::test::pow2_speed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/song-c9d87526476a53ac)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests song
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "79f45aadbed46b9e717899e1ce0c43e5074afacb375237bccfa4ff900214a3bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79f45aadbed46b9e717899e1ce0c43e5074afacb375237bccfa4ff900214a3bc", kill_on_drop: false }`
[INFO] [stdout] 79f45aadbed46b9e717899e1ce0c43e5074afacb375237bccfa4ff900214a3bc