[INFO] fetching crate mpdpopm 0.1.12...
[INFO] checking mpdpopm-0.1.12 against beta for pr-78714
[INFO] extracting crate mpdpopm 0.1.12 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mpdpopm 0.1.12 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 mpdpopm 0.1.12
[INFO] finished tweaking crates.io crate mpdpopm 0.1.12
[INFO] tweaked toml for crates.io crate mpdpopm 0.1.12 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate mpdpopm 0.1.12 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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 snafu-derive v0.6.7
[INFO] [stderr]   Downloaded lexpr v0.2.4
[INFO] [stderr]   Downloaded serde-lexpr v0.1.1
[INFO] [stderr]   Downloaded snafu v0.6.7
[INFO] [stderr]   Downloaded log4rs v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] e18368572945bd3c5d374bf079e74987bc18b3c165a702eb572f0855af92a51b
[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" "e18368572945bd3c5d374bf079e74987bc18b3c165a702eb572f0855af92a51b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e18368572945bd3c5d374bf079e74987bc18b3c165a702eb572f0855af92a51b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e18368572945bd3c5d374bf079e74987bc18b3c165a702eb572f0855af92a51b", kill_on_drop: false }`
[INFO] [stdout] e18368572945bd3c5d374bf079e74987bc18b3c165a702eb572f0855af92a51b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] c3b4e3d68bbb5a9a727307bfc91e3bac84d8bba9c843f480fe71bc72002c064b
[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" "c3b4e3d68bbb5a9a727307bfc91e3bac84d8bba9c843f480fe71bc72002c064b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]     Checking boolinator v2.4.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking errno v0.2.6
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling snafu-derive v0.6.7
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling async-trait v0.1.31
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling lexpr-macros v0.2.1
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking lexpr v0.2.4
[INFO] [stderr]     Checking pin-project v0.4.17
[INFO] [stderr]     Checking snafu v0.6.7
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking serde-value v0.6.0
[INFO] [stderr]     Checking serde-lexpr v0.1.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking log4rs v0.10.0
[INFO] [stderr]     Checking mpdpopm v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.21s
[INFO] running `Command { std: "docker" "inspect" "c3b4e3d68bbb5a9a727307bfc91e3bac84d8bba9c843f480fe71bc72002c064b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3b4e3d68bbb5a9a727307bfc91e3bac84d8bba9c843f480fe71bc72002c064b", kill_on_drop: false }`
[INFO] [stdout] c3b4e3d68bbb5a9a727307bfc91e3bac84d8bba9c843f480fe71bc72002c064b