[INFO] fetching crate serial-monitor 0.0.5...
[INFO] checking serial-monitor-0.0.5 against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] extracting crate serial-monitor 0.0.5 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate serial-monitor 0.0.5 on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serial-monitor 0.0.5
[INFO] finished tweaking crates.io crate serial-monitor 0.0.5
[INFO] tweaked toml for crates.io crate serial-monitor 0.0.5 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate serial-monitor 0.0.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8792fe97bb73748dabbf2f1c98c7c105c4b26174b6c1440049adfe1cd9027da3
[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" "8792fe97bb73748dabbf2f1c98c7c105c4b26174b6c1440049adfe1cd9027da3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8792fe97bb73748dabbf2f1c98c7c105c4b26174b6c1440049adfe1cd9027da3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8792fe97bb73748dabbf2f1c98c7c105c4b26174b6c1440049adfe1cd9027da3", kill_on_drop: false }`
[INFO] [stdout] 8792fe97bb73748dabbf2f1c98c7c105c4b26174b6c1440049adfe1cd9027da3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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] fa7204c223399dd3806c97c262e6f0948599319edd183ba5694863533b9f8afe
[INFO] running `Command { std: "docker" "start" "-a" "fa7204c223399dd3806c97c262e6f0948599319edd183ba5694863533b9f8afe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking arc-swap v0.4.6
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking wildmatch v1.0.9
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking libudev-sys v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking signal-hook v0.1.13
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking mio-serial v3.3.1
[INFO] [stderr]     Checking tokio v0.2.18
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking crossterm v0.17.3
[INFO] [stderr]     Checking tokio-serial v4.3.3
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking serial-monitor v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.14s
[INFO] running `Command { std: "docker" "inspect" "fa7204c223399dd3806c97c262e6f0948599319edd183ba5694863533b9f8afe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa7204c223399dd3806c97c262e6f0948599319edd183ba5694863533b9f8afe", kill_on_drop: false }`
[INFO] [stdout] fa7204c223399dd3806c97c262e6f0948599319edd183ba5694863533b9f8afe