[INFO] fetching crate mp4ameta 0.6.1...
[INFO] checking mp4ameta-0.6.1 against beta for pr-78714
[INFO] extracting crate mp4ameta 0.6.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mp4ameta 0.6.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mp4ameta 0.6.1
[INFO] finished tweaking crates.io crate mp4ameta 0.6.1
[INFO] tweaked toml for crates.io crate mp4ameta 0.6.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c113d2533459ee8b28724629f34b3d8dd17a1960ed504e9a7dda5cda42a6211
[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" "9c113d2533459ee8b28724629f34b3d8dd17a1960ed504e9a7dda5cda42a6211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c113d2533459ee8b28724629f34b3d8dd17a1960ed504e9a7dda5cda42a6211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c113d2533459ee8b28724629f34b3d8dd17a1960ed504e9a7dda5cda42a6211", kill_on_drop: false }`
[INFO] [stdout] 9c113d2533459ee8b28724629f34b3d8dd17a1960ed504e9a7dda5cda42a6211
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 97a0902858f1f32a80386325dcefe52cc56906cba54bd31722859a8d91525249
[INFO] running `Command { std: "docker" "start" "-a" "97a0902858f1f32a80386325dcefe52cc56906cba54bd31722859a8d91525249", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mp4ameta_proc v0.1.1
[INFO] [stderr]     Checking mp4ameta v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "97a0902858f1f32a80386325dcefe52cc56906cba54bd31722859a8d91525249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97a0902858f1f32a80386325dcefe52cc56906cba54bd31722859a8d91525249", kill_on_drop: false }`
[INFO] [stdout] 97a0902858f1f32a80386325dcefe52cc56906cba54bd31722859a8d91525249