[INFO] fetching crate async-port-scanner 0.1.4...
[INFO] checking async-port-scanner-0.1.4 against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] extracting crate async-port-scanner 0.1.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate async-port-scanner 0.1.4 on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-port-scanner 0.1.4
[INFO] finished tweaking crates.io crate async-port-scanner 0.1.4
[INFO] tweaked toml for crates.io crate async-port-scanner 0.1.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e597688c0b12f48570d07c9afe589ee7fe5346accb50dd10acf30462f71aad8
[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" "0e597688c0b12f48570d07c9afe589ee7fe5346accb50dd10acf30462f71aad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e597688c0b12f48570d07c9afe589ee7fe5346accb50dd10acf30462f71aad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e597688c0b12f48570d07c9afe589ee7fe5346accb50dd10acf30462f71aad8", kill_on_drop: false }`
[INFO] [stdout] 0e597688c0b12f48570d07c9afe589ee7fe5346accb50dd10acf30462f71aad8
[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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43fd9a4f3bc599f89546da8a143e7e44c8c842128114ec4cdb880e4c312d20f0
[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" "43fd9a4f3bc599f89546da8a143e7e44c8c842128114ec4cdb880e4c312d20f0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-io v1.2.0
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking async-port-scanner v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `async_std::io`
[INFO] [stdout]   --> src/lib.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     use async_std::io;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.48s
[INFO] running `Command { std: "docker" "inspect" "43fd9a4f3bc599f89546da8a143e7e44c8c842128114ec4cdb880e4c312d20f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43fd9a4f3bc599f89546da8a143e7e44c8c842128114ec4cdb880e4c312d20f0", kill_on_drop: false }`
[INFO] [stdout] 43fd9a4f3bc599f89546da8a143e7e44c8c842128114ec4cdb880e4c312d20f0