[INFO] fetching crate rumqttd 0.1.0...
[INFO] checking rumqttd-0.1.0 against beta for pr-78714
[INFO] extracting crate rumqttd 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate rumqttd 0.1.0 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 rumqttd 0.1.0
[INFO] finished tweaking crates.io crate rumqttd 0.1.0
[INFO] tweaked toml for crates.io crate rumqttd 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate rumqttd 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 7a901c814c895be96d0357e24dddbf212b327d768c3e4da0c758026b823ef63c
[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" "7a901c814c895be96d0357e24dddbf212b327d768c3e4da0c758026b823ef63c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a901c814c895be96d0357e24dddbf212b327d768c3e4da0c758026b823ef63c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a901c814c895be96d0357e24dddbf212b327d768c3e4da0c758026b823ef63c", kill_on_drop: false }`
[INFO] [stdout] 7a901c814c895be96d0357e24dddbf212b327d768c3e4da0c758026b823ef63c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 0e465d84f9a4e4ef5e373092e9397e67afda8724b900d738fb545296edfacbf5
[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" "0e465d84f9a4e4ef5e373092e9397e67afda8724b900d738fb545296edfacbf5", kill_on_drop: false }`
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]    Compiling symbolic-demangle v7.5.0
[INFO] [stderr]     Checking mqtt4bytes v0.3.0
[INFO] [stderr]    Compiling cpp_demangle v0.3.1
[INFO] [stderr]     Checking debugid v0.7.2
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking quick-xml v0.19.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]     Checking msvc-demangler v0.8.0
[INFO] [stderr]     Checking jackiechan v0.0.2
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking backtrace v0.3.53
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling const-random-macro v0.1.11
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking symbolic-common v7.5.0
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking const-random v0.1.11
[INFO] [stderr]     Checking ahash v0.4.6
[INFO] [stderr]     Checking inferno v0.10.1
[INFO] [stderr]     Checking confy v0.4.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking argh v0.1.3
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]     Checking rumqttlog v0.2.1
[INFO] [stderr]    Compiling pprof v0.3.18
[INFO] [stderr]     Checking jemallocator v0.3.2
[INFO] [stderr]     Checking rumqttd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 15s
[INFO] running `Command { std: "docker" "inspect" "0e465d84f9a4e4ef5e373092e9397e67afda8724b900d738fb545296edfacbf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e465d84f9a4e4ef5e373092e9397e67afda8724b900d738fb545296edfacbf5", kill_on_drop: false }`
[INFO] [stdout] 0e465d84f9a4e4ef5e373092e9397e67afda8724b900d738fb545296edfacbf5