[INFO] fetching crate jsonrpc-pubsub 17.0.0...
[INFO] checking jsonrpc-pubsub-17.0.0 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate jsonrpc-pubsub 17.0.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate jsonrpc-pubsub 17.0.0 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsonrpc-pubsub 17.0.0
[INFO] finished tweaking crates.io crate jsonrpc-pubsub 17.0.0
[INFO] tweaked toml for crates.io crate jsonrpc-pubsub 17.0.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate jsonrpc-pubsub 17.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b923a080d252ebfeb906fd1ccd849b21d8377b93538a5c89b548b06ab3e83f6
[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" "1b923a080d252ebfeb906fd1ccd849b21d8377b93538a5c89b548b06ab3e83f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b923a080d252ebfeb906fd1ccd849b21d8377b93538a5c89b548b06ab3e83f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b923a080d252ebfeb906fd1ccd849b21d8377b93538a5c89b548b06ab3e83f6", kill_on_drop: false }`
[INFO] [stdout] 1b923a080d252ebfeb906fd1ccd849b21d8377b93538a5c89b548b06ab3e83f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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] f33b6e048d6dabc9de772d83a8c85ad4403c6a605f5d0be4e0a818e0ac88b96b
[INFO] running `Command { std: "docker" "start" "-a" "f33b6e048d6dabc9de772d83a8c85ad4403c6a605f5d0be4e0a818e0ac88b96b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-sink v0.3.12
[INFO] [stderr]    Compiling serde v1.0.120
[INFO] [stderr]    Compiling serde_derive v1.0.120
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tokio v0.2.24
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking jsonrpc-core v17.0.0
[INFO] [stderr]     Checking jsonrpc-server-utils v17.0.0
[INFO] [stderr]     Checking jsonrpc-pubsub v17.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking jsonrpc-tcp-server v17.0.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.02s
[INFO] running `Command { std: "docker" "inspect" "f33b6e048d6dabc9de772d83a8c85ad4403c6a605f5d0be4e0a818e0ac88b96b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f33b6e048d6dabc9de772d83a8c85ad4403c6a605f5d0be4e0a818e0ac88b96b", kill_on_drop: false }`
[INFO] [stdout] f33b6e048d6dabc9de772d83a8c85ad4403c6a605f5d0be4e0a818e0ac88b96b