[INFO] fetching crate pollster 0.3.0...
[INFO] checking pollster-0.3.0 against master#35936c4839dd272646394779d151e060d0f6b3ac for pr-122960-1
[INFO] extracting crate pollster 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate pollster 0.3.0 on toolchain 35936c4839dd272646394779d151e060d0f6b3ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pollster 0.3.0
[INFO] finished tweaking crates.io crate pollster 0.3.0
[INFO] tweaked toml for crates.io crate pollster 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pollster-macro v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 464b4f5b8c467691c7c960cb70c4499062e38ff9b7925b5322bebe78d36f420d
[INFO] running `Command { std: "docker" "start" "-a" "464b4f5b8c467691c7c960cb70c4499062e38ff9b7925b5322bebe78d36f420d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "464b4f5b8c467691c7c960cb70c4499062e38ff9b7925b5322bebe78d36f420d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "464b4f5b8c467691c7c960cb70c4499062e38ff9b7925b5322bebe78d36f420d", kill_on_drop: false }`
[INFO] [stdout] 464b4f5b8c467691c7c960cb70c4499062e38ff9b7925b5322bebe78d36f420d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ceb86b49391a2373e15fcabc2db3b9f7ee71e901ff25ae5b0b3bd670eea6cb60
[INFO] running `Command { std: "docker" "start" "-a" "ceb86b49391a2373e15fcabc2db3b9f7ee71e901ff25ae5b0b3bd670eea6cb60", kill_on_drop: false }`
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]     Checking pollster v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stdout] warning: the item `pollster` is imported redundantly
[INFO] [stdout]  --> tests/basic.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use pollster;
[INFO] [stdout]   |     ^^^^^^^^ the item `pollster` is already defined by prelude
[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` profile [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "ceb86b49391a2373e15fcabc2db3b9f7ee71e901ff25ae5b0b3bd670eea6cb60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceb86b49391a2373e15fcabc2db3b9f7ee71e901ff25ae5b0b3bd670eea6cb60", kill_on_drop: false }`
[INFO] [stdout] ceb86b49391a2373e15fcabc2db3b9f7ee71e901ff25ae5b0b3bd670eea6cb60