[INFO] fetching crate futures-io-preview 0.3.0-alpha.19...
[INFO] building futures-io-preview-0.3.0-alpha.19 against try#d5c88c22807925c189328ef9d923c5d2b11a95b8+rustflags=-Zprofile-closures for pr-87066-3
[INFO] extracting crate futures-io-preview 0.3.0-alpha.19 into /workspace/builds/worker-71/source
[INFO] validating manifest of crates.io crate futures-io-preview 0.3.0-alpha.19 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-io-preview 0.3.0-alpha.19
[INFO] finished tweaking crates.io crate futures-io-preview 0.3.0-alpha.19
[INFO] tweaked toml for crates.io crate futures-io-preview 0.3.0-alpha.19 written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ca7303abd96f9cc34e4e79d88ef50c8216dedd5ee73931312ebf69ca9acb91e
[INFO] running `Command { std: "docker" "start" "-a" "5ca7303abd96f9cc34e4e79d88ef50c8216dedd5ee73931312ebf69ca9acb91e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ca7303abd96f9cc34e4e79d88ef50c8216dedd5ee73931312ebf69ca9acb91e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ca7303abd96f9cc34e4e79d88ef50c8216dedd5ee73931312ebf69ca9acb91e", kill_on_drop: false }`
[INFO] [stdout] 5ca7303abd96f9cc34e4e79d88ef50c8216dedd5ee73931312ebf69ca9acb91e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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 -Zprofile-closures" "-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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 975bbd71d523d9346cab19f7e8af8c076ea9eed53e7e1ad080e3c61da8bd3605
[INFO] running `Command { std: "docker" "start" "-a" "975bbd71d523d9346cab19f7e8af8c076ea9eed53e7e1ad080e3c61da8bd3605", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "975bbd71d523d9346cab19f7e8af8c076ea9eed53e7e1ad080e3c61da8bd3605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "975bbd71d523d9346cab19f7e8af8c076ea9eed53e7e1ad080e3c61da8bd3605", kill_on_drop: false }`
[INFO] [stdout] 975bbd71d523d9346cab19f7e8af8c076ea9eed53e7e1ad080e3c61da8bd3605
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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 -Zprofile-closures" "-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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ab2c8e0ba524cb0181142de1bbf5c2352abeb226e05fe1a8fc7a08502220ca5
[INFO] running `Command { std: "docker" "start" "-a" "3ab2c8e0ba524cb0181142de1bbf5c2352abeb226e05fe1a8fc7a08502220ca5", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "3ab2c8e0ba524cb0181142de1bbf5c2352abeb226e05fe1a8fc7a08502220ca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ab2c8e0ba524cb0181142de1bbf5c2352abeb226e05fe1a8fc7a08502220ca5", kill_on_drop: false }`
[INFO] [stdout] 3ab2c8e0ba524cb0181142de1bbf5c2352abeb226e05fe1a8fc7a08502220ca5