[INFO] cloning repository https://github.com/reujab/rust-music-player
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reujab/rust-music-player" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freujab%2Frust-music-player", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freujab%2Frust-music-player'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d552af375c2264ea4827ee84590ae0b5b744de8
[INFO] checking reujab/rust-music-player against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freujab%2Frust-music-player" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/reujab/rust-music-player on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/reujab/rust-music-player
[INFO] finished tweaking git repo https://github.com/reujab/rust-music-player
[INFO] tweaked toml for git repo https://github.com/reujab/rust-music-player written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/reujab/rust-music-player already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ffe8c7b37112c337d2f53f704812f69b247d941a6e3ebe7324943d43224875c
[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" "7ffe8c7b37112c337d2f53f704812f69b247d941a6e3ebe7324943d43224875c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ffe8c7b37112c337d2f53f704812f69b247d941a6e3ebe7324943d43224875c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ffe8c7b37112c337d2f53f704812f69b247d941a6e3ebe7324943d43224875c", kill_on_drop: false }`
[INFO] [stdout] 7ffe8c7b37112c337d2f53f704812f69b247d941a6e3ebe7324943d43224875c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46688a50decc234dcc391820dddb40bd4e5d93cca476ae7bc876b4c0612e119c
[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" "46688a50decc234dcc391820dddb40bd4e5d93cca476ae7bc876b4c0612e119c", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]     Checking rustc-demangle v0.1.7
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]     Checking c_vec v1.0.12
[INFO] [stderr]     Checking same-file v1.0.2
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking mp3-metadata v0.3.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking regex-syntax v0.5.5
[INFO] [stderr]     Checking bit-set v0.4.0
[INFO] [stderr]     Checking walkdir v2.1.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking fmod v0.9.24
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking chan v0.1.21
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling derive_builder_core v0.2.0
[INFO] [stderr]     Checking chan-signal v0.3.1
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking regex v0.2.10
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking id3 v0.2.3
[INFO] [stderr]     Checking backtrace v0.3.6
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking mp3-duration v0.1.3
[INFO] [stderr]     Checking music-player v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]   --> src/playlist.rs:22:34
[INFO] [stdout]    |
[INFO] [stdout] 22 |         for path in WalkDir::new(env::home_dir().unwrap().to_str().unwrap().to_string() + "/Music") {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]   --> src/playlist.rs:22:34
[INFO] [stdout]    |
[INFO] [stdout] 22 |         for path in WalkDir::new(env::home_dir().unwrap().to_str().unwrap().to_string() + "/Music") {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.93s
[INFO] running `Command { std: "docker" "inspect" "46688a50decc234dcc391820dddb40bd4e5d93cca476ae7bc876b4c0612e119c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46688a50decc234dcc391820dddb40bd4e5d93cca476ae7bc876b4c0612e119c", kill_on_drop: false }`
[INFO] [stdout] 46688a50decc234dcc391820dddb40bd4e5d93cca476ae7bc876b4c0612e119c