[INFO] fetching crate rumqttlog 0.2.1...
[INFO] checking rumqttlog-0.2.1 against beta for pr-78714
[INFO] extracting crate rumqttlog 0.2.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rumqttlog 0.2.1 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 rumqttlog 0.2.1
[INFO] finished tweaking crates.io crate rumqttlog 0.2.1
[INFO] tweaked toml for crates.io crate rumqttlog 0.2.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate rumqttlog 0.2.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 989d5a4f23791f17886e7d3f09836107ba3e5fe4fe030a6b45435ff8bcdbcc2e
[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" "989d5a4f23791f17886e7d3f09836107ba3e5fe4fe030a6b45435ff8bcdbcc2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "989d5a4f23791f17886e7d3f09836107ba3e5fe4fe030a6b45435ff8bcdbcc2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "989d5a4f23791f17886e7d3f09836107ba3e5fe4fe030a6b45435ff8bcdbcc2e", kill_on_drop: false }`
[INFO] [stdout] 989d5a4f23791f17886e7d3f09836107ba3e5fe4fe030a6b45435ff8bcdbcc2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] d940b668bab4a1fc4b13e5a6143e582770456f453c390ad477c39954e4b61cf1
[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" "d940b668bab4a1fc4b13e5a6143e582770456f453c390ad477c39954e4b61cf1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling multimap v0.8.2
[INFO] [stderr]    Compiling argh_shared v0.1.1
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]    Compiling cpp_demangle v0.3.1
[INFO] [stderr]    Compiling symbolic-demangle v7.5.0
[INFO] [stderr]     Checking mqtt4bytes v0.3.0
[INFO] [stderr]     Checking debugid v0.7.2
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking quick-xml v0.19.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking msvc-demangler v0.8.0
[INFO] [stderr]     Checking jackiechan v0.0.2
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking backtrace v0.3.53
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking futures-util v0.3.7
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking symbolic-common v7.5.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling const-random-macro v0.1.11
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking argh v0.1.3
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking const-random v0.1.11
[INFO] [stderr]     Checking ahash v0.4.6
[INFO] [stderr]     Checking inferno v0.10.1
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking rumqttlog v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling pprof v0.3.18
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "d940b668bab4a1fc4b13e5a6143e582770456f453c390ad477c39954e4b61cf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d940b668bab4a1fc4b13e5a6143e582770456f453c390ad477c39954e4b61cf1", kill_on_drop: false }`
[INFO] [stdout] d940b668bab4a1fc4b13e5a6143e582770456f453c390ad477c39954e4b61cf1