[INFO] fetching crate driver_async 0.0.3...
[INFO] testing driver_async-0.0.3 against 1.59.0 for beta-1.60-1
[INFO] extracting crate driver_async 0.0.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate driver_async 0.0.3 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate driver_async 0.0.3
[INFO] finished tweaking crates.io crate driver_async 0.0.3
[INFO] tweaked toml for crates.io crate driver_async 0.0.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c67ae53031b911c73f04a83f78494be30c706a3b9efacda0f0d23584831b119
[INFO] running `Command { std: "docker" "start" "-a" "8c67ae53031b911c73f04a83f78494be30c706a3b9efacda0f0d23584831b119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c67ae53031b911c73f04a83f78494be30c706a3b9efacda0f0d23584831b119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c67ae53031b911c73f04a83f78494be30c706a3b9efacda0f0d23584831b119", kill_on_drop: false }`
[INFO] [stdout] 8c67ae53031b911c73f04a83f78494be30c706a3b9efacda0f0d23584831b119
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4476c13a8c5f445186b17baebb26e4d2867f83cb51d02f40d566c5cdfdc0aba7
[INFO] running `Command { std: "docker" "start" "-a" "4476c13a8c5f445186b17baebb26e4d2867f83cb51d02f40d566c5cdfdc0aba7", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]    Compiling driver_async v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.54s
[INFO] running `Command { std: "docker" "inspect" "4476c13a8c5f445186b17baebb26e4d2867f83cb51d02f40d566c5cdfdc0aba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4476c13a8c5f445186b17baebb26e4d2867f83cb51d02f40d566c5cdfdc0aba7", kill_on_drop: false }`
[INFO] [stdout] 4476c13a8c5f445186b17baebb26e4d2867f83cb51d02f40d566c5cdfdc0aba7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc306ce411c694c1fd100b5a84d0c6756f616b80c4435aa30a1c3829f42275c7
[INFO] running `Command { std: "docker" "start" "-a" "dc306ce411c694c1fd100b5a84d0c6756f616b80c4435aa30a1c3829f42275c7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling driver_async v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "dc306ce411c694c1fd100b5a84d0c6756f616b80c4435aa30a1c3829f42275c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc306ce411c694c1fd100b5a84d0c6756f616b80c4435aa30a1c3829f42275c7", kill_on_drop: false }`
[INFO] [stdout] dc306ce411c694c1fd100b5a84d0c6756f616b80c4435aa30a1c3829f42275c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 33e5c68243fb75adb208e7eb62fb6e578c8cd2fc7b5c7b44eb99b44e58dac517
[INFO] running `Command { std: "docker" "start" "-a" "33e5c68243fb75adb208e7eb62fb6e578c8cd2fc7b5c7b44eb99b44e58dac517", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/driver_async-0733f31a095c8c89)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests driver_async
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "33e5c68243fb75adb208e7eb62fb6e578c8cd2fc7b5c7b44eb99b44e58dac517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33e5c68243fb75adb208e7eb62fb6e578c8cd2fc7b5c7b44eb99b44e58dac517", kill_on_drop: false }`
[INFO] [stdout] 33e5c68243fb75adb208e7eb62fb6e578c8cd2fc7b5c7b44eb99b44e58dac517