[INFO] fetching crate async-backplane 0.1.0...
[INFO] checking async-backplane-0.1.0 against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] extracting crate async-backplane 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate async-backplane 0.1.0 on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-backplane 0.1.0
[INFO] finished tweaking crates.io crate async-backplane 0.1.0
[INFO] tweaked toml for crates.io crate async-backplane 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3a26589f5d2bdac59c91f1f5efdeb8569e4b9b400efa68e4efc683434563a2f
[INFO] running `Command { std: "docker" "start" "-a" "e3a26589f5d2bdac59c91f1f5efdeb8569e4b9b400efa68e4efc683434563a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3a26589f5d2bdac59c91f1f5efdeb8569e4b9b400efa68e4efc683434563a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3a26589f5d2bdac59c91f1f5efdeb8569e4b9b400efa68e4efc683434563a2f", kill_on_drop: false }`
[INFO] [stdout] e3a26589f5d2bdac59c91f1f5efdeb8569e4b9b400efa68e4efc683434563a2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68a1f7574e6f3bf21eb7254130f9369957266b415c9eed0c594ab39cc42b0d27
[INFO] running `Command { std: "docker" "start" "-a" "68a1f7574e6f3bf21eb7254130f9369957266b415c9eed0c594ab39cc42b0d27", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-unwind v0.3.1
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]     Checking waker-queue v0.1.0
[INFO] [stderr]     Checking async-backplane v0.1.0 (/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 0.88s
[INFO] running `Command { std: "docker" "inspect" "68a1f7574e6f3bf21eb7254130f9369957266b415c9eed0c594ab39cc42b0d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68a1f7574e6f3bf21eb7254130f9369957266b415c9eed0c594ab39cc42b0d27", kill_on_drop: false }`
[INFO] [stdout] 68a1f7574e6f3bf21eb7254130f9369957266b415c9eed0c594ab39cc42b0d27