[INFO] fetching crate rumq-core 0.1.0-alpha.10...
[INFO] checking rumq-core-0.1.0-alpha.10 against beta for pr-78714
[INFO] extracting crate rumq-core 0.1.0-alpha.10 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rumq-core 0.1.0-alpha.10 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 rumq-core 0.1.0-alpha.10
[INFO] finished tweaking crates.io crate rumq-core 0.1.0-alpha.10
[INFO] tweaked toml for crates.io crate rumq-core 0.1.0-alpha.10 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] e269dea9f3bdf256d9d048213e501b9e2357016b48a223b432509c1455a9e01d
[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" "e269dea9f3bdf256d9d048213e501b9e2357016b48a223b432509c1455a9e01d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e269dea9f3bdf256d9d048213e501b9e2357016b48a223b432509c1455a9e01d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e269dea9f3bdf256d9d048213e501b9e2357016b48a223b432509c1455a9e01d", kill_on_drop: false }`
[INFO] [stdout] e269dea9f3bdf256d9d048213e501b9e2357016b48a223b432509c1455a9e01d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] c579dfe364b383d542195ee4cd872389d7d84eba237435562b691dc4e8e13f24
[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" "c579dfe364b383d542195ee4cd872389d7d84eba237435562b691dc4e8e13f24", kill_on_drop: false }`
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking rumq-core v0.1.0-alpha.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.72s
[INFO] running `Command { std: "docker" "inspect" "c579dfe364b383d542195ee4cd872389d7d84eba237435562b691dc4e8e13f24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c579dfe364b383d542195ee4cd872389d7d84eba237435562b691dc4e8e13f24", kill_on_drop: false }`
[INFO] [stdout] c579dfe364b383d542195ee4cd872389d7d84eba237435562b691dc4e8e13f24