[INFO] cloning repository https://github.com/leetreveil/rust-musicmetadata
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leetreveil/rust-musicmetadata" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleetreveil%2Frust-musicmetadata", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleetreveil%2Frust-musicmetadata'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4849ec174eccee174c03a40cc81ab6e31376bcdf
[INFO] checking leetreveil/rust-musicmetadata against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleetreveil%2Frust-musicmetadata" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  34% (13/38)   
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Checking out files: 100% (38/38), done.
[INFO] validating manifest of git repo https://github.com/leetreveil/rust-musicmetadata on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leetreveil/rust-musicmetadata
[INFO] finished tweaking git repo https://github.com/leetreveil/rust-musicmetadata
[INFO] tweaked toml for git repo https://github.com/leetreveil/rust-musicmetadata written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/leetreveil/rust-musicmetadata already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e42181dcdc744fd73967f6e124d85fb0216842532c4ac08d5111785fac2b7398
[INFO] running `Command { std: "docker" "start" "-a" "e42181dcdc744fd73967f6e124d85fb0216842532c4ac08d5111785fac2b7398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e42181dcdc744fd73967f6e124d85fb0216842532c4ac08d5111785fac2b7398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e42181dcdc744fd73967f6e124d85fb0216842532c4ac08d5111785fac2b7398", kill_on_drop: false }`
[INFO] [stdout] e42181dcdc744fd73967f6e124d85fb0216842532c4ac08d5111785fac2b7398
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18278d0de5a4774990be80014991586c1fc48ed069d71489e0471cf73f95a0ab
[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" "18278d0de5a4774990be80014991586c1fc48ed069d71489e0471cf73f95a0ab", kill_on_drop: false }`
[INFO] [stderr]     Checking simple-error v0.1.13
[INFO] [stderr]     Checking rust-musicmetadata v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/id3v1.rs:29:47
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn clean (i: &[u8]) -> Result<String, Box<std::error::Error>> {
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/id3v1.rs:29:47
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn clean (i: &[u8]) -> Result<String, Box<std::error::Error>> {
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` 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 0.84s
[INFO] running `Command { std: "docker" "inspect" "18278d0de5a4774990be80014991586c1fc48ed069d71489e0471cf73f95a0ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18278d0de5a4774990be80014991586c1fc48ed069d71489e0471cf73f95a0ab", kill_on_drop: false }`
[INFO] [stdout] 18278d0de5a4774990be80014991586c1fc48ed069d71489e0471cf73f95a0ab