[INFO] fetching crate async-tcp 0.2.0...
[INFO] checking async-tcp-0.2.0 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[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 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a4074d14584947d452a54e1f619e6da1a2e849e199bf24d8ba6456120a3573b
[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" "4a4074d14584947d452a54e1f619e6da1a2e849e199bf24d8ba6456120a3573b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a4074d14584947d452a54e1f619e6da1a2e849e199bf24d8ba6456120a3573b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a4074d14584947d452a54e1f619e6da1a2e849e199bf24d8ba6456120a3573b", kill_on_drop: false }`
[INFO] [stdout] 4a4074d14584947d452a54e1f619e6da1a2e849e199bf24d8ba6456120a3573b
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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] b5fa22b4ad451d80bb836f8bfe8c70b25a90644a01a040f7e0ee586eadaa5e92
[INFO] running `Command { std: "docker" "start" "-a" "b5fa22b4ad451d80bb836f8bfe8c70b25a90644a01a040f7e0ee586eadaa5e92", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking vec-arena v0.5.2
[INFO] [stderr]     Checking futures-micro v0.3.1
[INFO] [stderr]     Checking vec-arena v1.2.0
[INFO] [stderr]     Checking async-task v3.0.0
[INFO] [stderr]     Checking nb-connect v1.2.0
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking ufut v0.3.1
[INFO] [stderr]     Checking async-lock v2.4.0
[INFO] [stderr]     Checking async-peek v0.3.2
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking polling v1.1.0
[INFO] [stderr]     Checking polling v0.1.9
[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 blocking v0.6.1
[INFO] [stderr]     Checking async-executor v0.2.1
[INFO] [stderr]     Checking async-tcp v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking async-net v1.6.0
[INFO] [stderr]     Checking async-fs 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 8.32s
[INFO] running `Command { std: "docker" "inspect" "b5fa22b4ad451d80bb836f8bfe8c70b25a90644a01a040f7e0ee586eadaa5e92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5fa22b4ad451d80bb836f8bfe8c70b25a90644a01a040f7e0ee586eadaa5e92", kill_on_drop: false }`
[INFO] [stdout] b5fa22b4ad451d80bb836f8bfe8c70b25a90644a01a040f7e0ee586eadaa5e92