[INFO] fetching crate async-tcp 0.2.0...
[INFO] checking async-tcp-0.2.0 against beta for pr-78714
[INFO] extracting crate async-tcp 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate async-tcp 0.2.0 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 async-tcp 0.2.0
[INFO] finished tweaking crates.io crate async-tcp 0.2.0
[INFO] tweaked toml for crates.io crate async-tcp 0.2.0 written to /workspace/builds/worker-12/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 7c618d3638fa3bcf3b50e89c690f48f3bdc630d6ff8d82232eac12989bd21134
[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" "7c618d3638fa3bcf3b50e89c690f48f3bdc630d6ff8d82232eac12989bd21134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c618d3638fa3bcf3b50e89c690f48f3bdc630d6ff8d82232eac12989bd21134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c618d3638fa3bcf3b50e89c690f48f3bdc630d6ff8d82232eac12989bd21134", kill_on_drop: false }`
[INFO] [stdout] 7c618d3638fa3bcf3b50e89c690f48f3bdc630d6ff8d82232eac12989bd21134
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 275a9132d2712ec091ab6a9397a48e374b20f77ee9083e3ff466568bf5a95f73
[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" "275a9132d2712ec091ab6a9397a48e374b20f77ee9083e3ff466568bf5a95f73", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking vec-arena v0.5.2
[INFO] [stderr]     Checking futures-micro v0.3.1
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking socket2 v0.3.16
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking polling v1.1.0
[INFO] [stderr]     Checking polling v0.1.9
[INFO] [stderr]     Checking ufut v0.3.1
[INFO] [stderr]     Checking async-peek v0.3.2
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-io v0.2.7
[INFO] [stderr]     Checking async-io v1.1.6
[INFO] [stderr]     Checking async-executor v0.2.1
[INFO] [stderr]     Checking blocking v0.6.1
[INFO] [stderr]     Checking async-tcp v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking async-fs v1.5.0
[INFO] [stderr]     Checking async-net v1.5.0
[INFO] [stderr]     Checking async-process v0.1.3
[INFO] [stderr]     Checking smol v0.4.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.98s
[INFO] running `Command { std: "docker" "inspect" "275a9132d2712ec091ab6a9397a48e374b20f77ee9083e3ff466568bf5a95f73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "275a9132d2712ec091ab6a9397a48e374b20f77ee9083e3ff466568bf5a95f73", kill_on_drop: false }`
[INFO] [stdout] 275a9132d2712ec091ab6a9397a48e374b20f77ee9083e3ff466568bf5a95f73