[INFO] fetching crate jsonrpc-ipc-server 15.1.0...
[INFO] checking jsonrpc-ipc-server-15.1.0 against beta for pr-78714
[INFO] extracting crate jsonrpc-ipc-server 15.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate jsonrpc-ipc-server 15.1.0 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 jsonrpc-ipc-server 15.1.0
[INFO] finished tweaking crates.io crate jsonrpc-ipc-server 15.1.0
[INFO] tweaked toml for crates.io crate jsonrpc-ipc-server 15.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate jsonrpc-ipc-server 15.1.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] c544156df8c2fd31ea5e5220616cfcf320d2630009ff3d33f8b0971a2bd42755
[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" "c544156df8c2fd31ea5e5220616cfcf320d2630009ff3d33f8b0971a2bd42755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c544156df8c2fd31ea5e5220616cfcf320d2630009ff3d33f8b0971a2bd42755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c544156df8c2fd31ea5e5220616cfcf320d2630009ff3d33f8b0971a2bd42755", kill_on_drop: false }`
[INFO] [stdout] c544156df8c2fd31ea5e5220616cfcf320d2630009ff3d33f8b0971a2bd42755
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 6b87c2dfce0537bf35635e9b1d5c7691471b95d636eb5cfdba85f99682db6ef5
[INFO] running `Command { std: "docker" "start" "-a" "6b87c2dfce0537bf35635e9b1d5c7691471b95d636eb5cfdba85f99682db6ef5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking mio-named-pipes v0.1.7
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking miow v0.3.5
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-named-pipes v0.1.0
[INFO] [stderr]     Checking parity-tokio-ipc v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking jsonrpc-core v15.1.0
[INFO] [stderr]     Checking jsonrpc-server-utils v15.1.0
[INFO] [stderr]     Checking jsonrpc-ipc-server v15.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.27s
[INFO] running `Command { std: "docker" "inspect" "6b87c2dfce0537bf35635e9b1d5c7691471b95d636eb5cfdba85f99682db6ef5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b87c2dfce0537bf35635e9b1d5c7691471b95d636eb5cfdba85f99682db6ef5", kill_on_drop: false }`
[INFO] [stdout] 6b87c2dfce0537bf35635e9b1d5c7691471b95d636eb5cfdba85f99682db6ef5