[INFO] fetching crate ak-rt 0.1.1...
[INFO] testing ak-rt-0.1.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate ak-rt 0.1.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate ak-rt 0.1.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ak-rt 0.1.1
[INFO] finished tweaking crates.io crate ak-rt 0.1.1
[INFO] tweaked toml for crates.io crate ak-rt 0.1.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-executor v0.2.0-alpha.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20a310ba9f024b22373930843d74740cfdd2dc69f24850f753ab8a7de4b97bfb
[INFO] running `Command { std: "docker" "start" "-a" "20a310ba9f024b22373930843d74740cfdd2dc69f24850f753ab8a7de4b97bfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20a310ba9f024b22373930843d74740cfdd2dc69f24850f753ab8a7de4b97bfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20a310ba9f024b22373930843d74740cfdd2dc69f24850f753ab8a7de4b97bfb", kill_on_drop: false }`
[INFO] [stdout] 20a310ba9f024b22373930843d74740cfdd2dc69f24850f753ab8a7de4b97bfb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 904f10a240ab51aad36e86140fe4e1f7b28d1daccb2bb6265918bc2b27509d74
[INFO] running `Command { std: "docker" "start" "-a" "904f10a240ab51aad36e86140fe4e1f7b28d1daccb2bb6265918bc2b27509d74", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling slab v0.4.6
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling tokio-executor v0.2.0-alpha.6
[INFO] [stderr]    Compiling ak-rt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tokio::prelude::Future`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tokio::prelude::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `Future` in `prelude`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio::spawn`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::spawn;
[INFO] [stdout]   |     ^^^^^^^^^^^^ no `spawn` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `current_thread` in `tokio_executor`
[INFO] [stdout]  --> src/lib.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |     tokio_executor::current_thread::block_on_all(async {
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^ could not find `current_thread` in `tokio_executor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `current_thread` in `tokio_executor`
[INFO] [stdout]   --> src/lib.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 |     tokio_executor::current_thread::spawn(fut);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ could not find `current_thread` in `tokio_executor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ak-rt` due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "904f10a240ab51aad36e86140fe4e1f7b28d1daccb2bb6265918bc2b27509d74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "904f10a240ab51aad36e86140fe4e1f7b28d1daccb2bb6265918bc2b27509d74", kill_on_drop: false }`
[INFO] [stdout] 904f10a240ab51aad36e86140fe4e1f7b28d1daccb2bb6265918bc2b27509d74