[INFO] cloning repository https://github.com/jernejmarcic/RustyPlayer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jernejmarcic/RustyPlayer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjernejmarcic%2FRustyPlayer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjernejmarcic%2FRustyPlayer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7d6000c632d33e57e68e29b36787ce1169ede48
[INFO] checking jernejmarcic/RustyPlayer against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjernejmarcic%2FRustyPlayer" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jernejmarcic/RustyPlayer on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jernejmarcic/RustyPlayer
[INFO] finished tweaking git repo https://github.com/jernejmarcic/RustyPlayer
[INFO] tweaked toml for git repo https://github.com/jernejmarcic/RustyPlayer written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jernejmarcic/RustyPlayer 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mp4ameta_proc v0.6.0
[INFO] [stderr]   Downloaded id3 v1.13.1
[INFO] [stderr]   Downloaded audiotags-macro v0.2.0
[INFO] [stderr]   Downloaded souvlaki v0.7.3
[INFO] [stderr]   Downloaded metaflac v0.2.5
[INFO] [stderr]   Downloaded readme-rustdocifier v0.1.1
[INFO] [stderr]   Downloaded mp4ameta v0.11.0
[INFO] [stderr]   Downloaded audiotags v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d1a0b221307c79390e6c4e4daf2f97ed9a47fba98aae843366c759ca3d2bef0
[INFO] running `Command { std: "docker" "start" "-a" "7d1a0b221307c79390e6c4e4daf2f97ed9a47fba98aae843366c759ca3d2bef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d1a0b221307c79390e6c4e4daf2f97ed9a47fba98aae843366c759ca3d2bef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d1a0b221307c79390e6c4e4daf2f97ed9a47fba98aae843366c759ca3d2bef0", kill_on_drop: false }`
[INFO] [stdout] 7d1a0b221307c79390e6c4e4daf2f97ed9a47fba98aae843366c759ca3d2bef0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31930e898440e627e64cabac5fcb384f5b591f19c92ca116f6fdc405f2020ab6
[INFO] running `Command { std: "docker" "start" "-a" "31930e898440e627e64cabac5fcb384f5b591f19c92ca116f6fdc405f2020ab6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]     Checking bytemuck v1.14.3
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling libdbus-sys v0.2.5
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling phf_codegen v0.11.2
[INFO] [stderr]     Checking symphonia-core v0.5.4
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling terminfo v0.8.0
[INFO] [stderr]    Compiling cpal v0.15.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking alsa v0.7.1
[INFO] [stderr]     Checking symphonia-metadata v0.5.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking nom v7.1.3
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[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking dbus v0.9.7
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking ogg v0.8.0
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling mp4ameta_proc v0.6.0
[INFO] [stderr]     Checking dasp_sample v0.11.0
[INFO] [stderr]    Compiling souvlaki v0.7.3
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking metaflac v0.2.5
[INFO] [stderr]     Checking mp4ameta v0.11.0
[INFO] [stderr]     Checking which v4.4.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking lewton v0.10.2
[INFO] [stderr]     Checking symphonia v0.5.4
[INFO] [stderr]     Checking id3 v1.13.1
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking hound v3.5.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking claxon v0.4.3
[INFO] [stderr]     Checking dbus-crossroads v0.5.2
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking audiotags-macro v0.2.0
[INFO] [stderr]     Checking rodio v0.17.3
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking raw-window-handle v0.6.0
[INFO] [stderr]     Checking audiotags v0.5.0
[INFO] [stderr]     Checking clearscreen v2.0.1
[INFO] [stderr]     Checking rustyplayer v0.9.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]   --> src/music_play.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut rng = rand::thread_rng();
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/music_play.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut rng = rand::thread_rng();
[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: unused variable: `rng`
[INFO] [stdout]   --> src/music_play.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut rng = rand::thread_rng();
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/music_play.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut rng = rand::thread_rng();
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/music_play.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |         fs::remove_file(path_to_file);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let _ = fs::remove_file(path_to_file);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/music_play.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |         fs::remove_file(path_to_file);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let _ = fs::remove_file(path_to_file);
[INFO] [stdout]     |         +++++++
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.49s
[INFO] running `Command { std: "docker" "inspect" "31930e898440e627e64cabac5fcb384f5b591f19c92ca116f6fdc405f2020ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31930e898440e627e64cabac5fcb384f5b591f19c92ca116f6fdc405f2020ab6", kill_on_drop: false }`
[INFO] [stdout] 31930e898440e627e64cabac5fcb384f5b591f19c92ca116f6fdc405f2020ab6