[INFO] fetching crate async-backplane 0.1.1...
[INFO] checking async-backplane-0.1.1 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate async-backplane 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate async-backplane 0.1.1 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-backplane 0.1.1
[INFO] finished tweaking crates.io crate async-backplane 0.1.1
[INFO] tweaked toml for crates.io crate async-backplane 0.1.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded waker-queue v0.1.0
[INFO] [stderr]   Downloaded maybe-unwind v0.3.1
[INFO] [stderr]   Downloaded concurrent-queue v1.2.1
[INFO] [stderr]   Downloaded futures-micro v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a72bcb9d629d43c2427ec17e264a08edc2f7e53d8def298833c84a019b9aeb3
[INFO] running `Command { std: "docker" "start" "-a" "9a72bcb9d629d43c2427ec17e264a08edc2f7e53d8def298833c84a019b9aeb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a72bcb9d629d43c2427ec17e264a08edc2f7e53d8def298833c84a019b9aeb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a72bcb9d629d43c2427ec17e264a08edc2f7e53d8def298833c84a019b9aeb3", kill_on_drop: false }`
[INFO] [stdout] 9a72bcb9d629d43c2427ec17e264a08edc2f7e53d8def298833c84a019b9aeb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26ab770dc631ae0f5b04e73e49d9f68099e1c3cc5082994be1d16f5fb509377c
[INFO] running `Command { std: "docker" "start" "-a" "26ab770dc631ae0f5b04e73e49d9f68099e1c3cc5082994be1d16f5fb509377c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling maybe-unwind v0.3.1
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]     Checking futures-micro v0.2.0
[INFO] [stderr]     Checking concurrent-queue v1.2.1
[INFO] [stderr]     Checking waker-queue v0.1.0
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]     Checking async-backplane v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `pending`
[INFO] [stdout]  --> tests/watch.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures_lite::future::{pending, ready, block_on};
[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 1.88s
[INFO] running `Command { std: "docker" "inspect" "26ab770dc631ae0f5b04e73e49d9f68099e1c3cc5082994be1d16f5fb509377c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26ab770dc631ae0f5b04e73e49d9f68099e1c3cc5082994be1d16f5fb509377c", kill_on_drop: false }`
[INFO] [stdout] 26ab770dc631ae0f5b04e73e49d9f68099e1c3cc5082994be1d16f5fb509377c