[INFO] fetching crate async-core 0.3.1...
[INFO] checking async-core-0.3.1 against try#47af3d0de9d26c7deba4cfb203b710cc3f764e91 for pr-130443
[INFO] extracting crate async-core 0.3.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate async-core 0.3.1 on toolchain 47af3d0de9d26c7deba4cfb203b710cc3f764e91
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-core 0.3.1
[INFO] finished tweaking crates.io crate async-core 0.3.1
[INFO] tweaked toml for crates.io crate async-core 0.3.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate async-core 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d50664ffc7f0c3ec69ded59542a0030ea97fe14ca65b41ccf93806f3cd7d445
[INFO] running `Command { std: "docker" "start" "-a" "0d50664ffc7f0c3ec69ded59542a0030ea97fe14ca65b41ccf93806f3cd7d445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d50664ffc7f0c3ec69ded59542a0030ea97fe14ca65b41ccf93806f3cd7d445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d50664ffc7f0c3ec69ded59542a0030ea97fe14ca65b41ccf93806f3cd7d445", kill_on_drop: false }`
[INFO] [stdout] 0d50664ffc7f0c3ec69ded59542a0030ea97fe14ca65b41ccf93806f3cd7d445
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f601c69590c0189bfb277e276483ed9d559078324401b395b318122fb2a43739
[INFO] running `Command { std: "docker" "start" "-a" "f601c69590c0189bfb277e276483ed9d559078324401b395b318122fb2a43739", kill_on_drop: false }`
[INFO] [stderr]     Checking async-core v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/runtime.rs:86:49
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub struct OwnedRuntime<'a>(RuntimeWrapper<'a>, pub(crate) Box<dyn InternalRuntime + 'a>);
[INFO] [stdout]    |            ------------ field in this struct    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/runtime.rs:86:49
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub struct OwnedRuntime<'a>(RuntimeWrapper<'a>, pub(crate) Box<dyn InternalRuntime + 'a>);
[INFO] [stdout]    |            ------------ field in this struct    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "f601c69590c0189bfb277e276483ed9d559078324401b395b318122fb2a43739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f601c69590c0189bfb277e276483ed9d559078324401b395b318122fb2a43739", kill_on_drop: false }`
[INFO] [stdout] f601c69590c0189bfb277e276483ed9d559078324401b395b318122fb2a43739
