[INFO] fetching crate safina-net 0.1.3...
[INFO] checking safina-net-0.1.3 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate safina-net 0.1.3 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate safina-net 0.1.3 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate safina-net 0.1.3
[INFO] finished tweaking crates.io crate safina-net 0.1.3
[INFO] tweaked toml for crates.io crate safina-net 0.1.3 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2bfd81e9bd0d1a89b68c54342139f9828e85d14cfc2d252d719ada73acab111
[INFO] running `Command { std: "docker" "start" "-a" "a2bfd81e9bd0d1a89b68c54342139f9828e85d14cfc2d252d719ada73acab111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2bfd81e9bd0d1a89b68c54342139f9828e85d14cfc2d252d719ada73acab111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2bfd81e9bd0d1a89b68c54342139f9828e85d14cfc2d252d719ada73acab111", kill_on_drop: false }`
[INFO] [stdout] a2bfd81e9bd0d1a89b68c54342139f9828e85d14cfc2d252d719ada73acab111
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 447617a856fab2db973a894e0379fb997463f7caaf17c95db0291a87a010b5fe
[INFO] running `Command { std: "docker" "start" "-a" "447617a856fab2db973a894e0379fb997463f7caaf17c95db0291a87a010b5fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking safina-sync v0.1.5
[INFO] [stderr]     Checking safina-threadpool v0.1.3
[INFO] [stderr]     Checking safina-executor v0.1.7
[INFO] [stderr]     Checking safina-timer v0.1.9
[INFO] [stderr]     Checking safina-net v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling safina-async-test-core v0.1.1
[INFO] [stderr]     Checking safina-async-test v0.1.9
[INFO] [stdout] warning: unused return value of `std::io::Error::kind` that must be used
[INFO] [stdout]    --> tests/tcp_stream.rs:509:5
[INFO] [stdout]     |
[INFO] [stdout] 509 | /     socket_in_error()
[INFO] [stdout] 510 | |         .await
[INFO] [stdout] 511 | |         .write_all(&filled_vec(b'.', 10 * 1024 * 1024))
[INFO] [stdout] 512 | |         .await
[INFO] [stdout] 513 | |         .unwrap_err()
[INFO] [stdout] 514 | |         .kind();
[INFO] [stdout]     | |________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::io::Error::kind` that must be used
[INFO] [stdout]    --> tests/tcp_stream.rs:540:5
[INFO] [stdout]     |
[INFO] [stdout] 540 | /     socket_in_error()
[INFO] [stdout] 541 | |         .await
[INFO] [stdout] 542 | |         .write_vectored(&[IoSlice::new(b"abc")])
[INFO] [stdout] 543 | |         .await
[INFO] [stdout] 544 | |         .unwrap_err()
[INFO] [stdout] 545 | |         .kind();
[INFO] [stdout]     | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.57s
[INFO] running `Command { std: "docker" "inspect" "447617a856fab2db973a894e0379fb997463f7caaf17c95db0291a87a010b5fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "447617a856fab2db973a894e0379fb997463f7caaf17c95db0291a87a010b5fe", kill_on_drop: false }`
[INFO] [stdout] 447617a856fab2db973a894e0379fb997463f7caaf17c95db0291a87a010b5fe