[INFO] cloning repository https://github.com/Fuzen-py/Melody
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Fuzen-py/Melody" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuzen-py%2FMelody", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuzen-py%2FMelody'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1fd14def0804585c06c8785f01f49a3d4652274
[INFO] checking Fuzen-py/Melody against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuzen-py%2FMelody" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Fuzen-py/Melody on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Fuzen-py/Melody
[INFO] finished tweaking git repo https://github.com/Fuzen-py/Melody
[INFO] tweaked toml for git repo https://github.com/Fuzen-py/Melody written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Fuzen-py/Melody already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clicolors-control v0.2.0
[INFO] [stderr]   Downloaded directories v1.0.2
[INFO] [stderr]   Downloaded console v0.6.2
[INFO] [stderr]   Downloaded slice-deque v0.1.14
[INFO] [stderr]   Downloaded mach v0.2.2
[INFO] [stderr]   Downloaded tabwriter v1.1.0
[INFO] [stderr]   Downloaded indicatif v0.9.0
[INFO] [stderr]   Downloaded minimp3 v0.3.0
[INFO] [stderr]   Downloaded mp3-metadata v0.3.0
[INFO] [stderr]   Downloaded minimp3-sys v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 151186ffbc9278bf720293c76a94ed9bb958db8279fd88864e151095c42f6e62
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "151186ffbc9278bf720293c76a94ed9bb958db8279fd88864e151095c42f6e62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "151186ffbc9278bf720293c76a94ed9bb958db8279fd88864e151095c42f6e62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "151186ffbc9278bf720293c76a94ed9bb958db8279fd88864e151095c42f6e62", kill_on_drop: false }`
[INFO] [stdout] 151186ffbc9278bf720293c76a94ed9bb958db8279fd88864e151095c42f6e62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 066205113e25af71dfe9d86f18f047b8358a44b53be4b2965aa3824d94fbf0f9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "066205113e25af71dfe9d86f18f047b8358a44b53be4b2965aa3824d94fbf0f9", 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking rustc-demangle v0.1.9
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[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking same-file v1.0.3
[INFO] [stderr]     Checking claxon v0.3.2
[INFO] [stderr]     Checking mp3-metadata v0.3.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]     Checking unreachable v1.0.0
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[INFO] [stderr]     Checking regex-syntax v0.6.2
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[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]     Checking walkdir v2.2.5
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[INFO] [stderr]     Checking smallvec v0.6.5
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[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking slice-deque v0.1.14
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking lewton v0.9.3
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]     Checking aho-corasick v0.6.8
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[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]    Compiling syn v0.15.15
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling minimp3-sys v0.3.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking cgmath v0.14.1
[INFO] [stderr]     Checking parking_lot v0.6.4
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[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking rodio v0.8.1
[INFO] [stderr]     Checking os_type v2.2.0
[INFO] [stderr]     Checking console v0.6.2
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking indicatif v0.9.0
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking toml v0.4.8
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking human-panic v1.0.1
[INFO] [stderr]     Checking melody v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `mp3_metadata` is imported redundantly
[INFO] [stdout]   --> src/song.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |         use mp3_metadata;
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | extern crate mp3_metadata;
[INFO] [stdout]    | -------------------------- the item `mp3_metadata` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mp3_metadata` is imported redundantly
[INFO] [stdout]   --> src/song.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |         use mp3_metadata;
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | extern crate mp3_metadata;
[INFO] [stdout]    | -------------------------- the item `mp3_metadata` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:25:26
[INFO] [stdout]    |
[INFO] [stdout] 25 |         f.write_str(self.description())
[INFO] [stdout]    |                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:63:65
[INFO] [stdout]    |
[INFO] [stdout] 63 |         MelodyErrors::new(MelodyErrorsKind::Io(err.kind()), err.description(), None)
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:25:26
[INFO] [stdout]    |
[INFO] [stdout] 25 |         f.write_str(self.description())
[INFO] [stdout]    |                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:63:65
[INFO] [stdout]    |
[INFO] [stdout] 63 |         MelodyErrors::new(MelodyErrorsKind::Io(err.kind()), err.description(), None)
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/utils.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |         let mut tracks = pl.tracks;
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/utils.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |         let mut tracks = pl.tracks;
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]   --> bin/melody/config.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         ::std::fs::create_dir_all(&config_file).is_ok(); // Result doesnt matter
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]   --> bin/melody/config.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         ::std::fs::create_dir_all(&config_file).is_ok(); // Result doesnt matter
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "066205113e25af71dfe9d86f18f047b8358a44b53be4b2965aa3824d94fbf0f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "066205113e25af71dfe9d86f18f047b8358a44b53be4b2965aa3824d94fbf0f9", kill_on_drop: false }`
[INFO] [stdout] 066205113e25af71dfe9d86f18f047b8358a44b53be4b2965aa3824d94fbf0f9