[INFO] fetching crate ak-rt 0.1.1...
[INFO] checking ak-rt-0.1.1 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate ak-rt 0.1.1 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate ak-rt 0.1.1 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-33/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b56bd4cbb8aa67b9d9b36dc8563fdc0580e432a4995666277f10d0eb49d5eda
[INFO] running `Command { std: "docker" "start" "-a" "4b56bd4cbb8aa67b9d9b36dc8563fdc0580e432a4995666277f10d0eb49d5eda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b56bd4cbb8aa67b9d9b36dc8563fdc0580e432a4995666277f10d0eb49d5eda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b56bd4cbb8aa67b9d9b36dc8563fdc0580e432a4995666277f10d0eb49d5eda", kill_on_drop: false }`
[INFO] [stdout] 4b56bd4cbb8aa67b9d9b36dc8563fdc0580e432a4995666277f10d0eb49d5eda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ba1ccba716cfa0419d97982ff5b4645d8843206646ab4e6599ca239454bf720
[INFO] running `Command { std: "docker" "start" "-a" "5ba1ccba716cfa0419d97982ff5b4645d8843206646ab4e6599ca239454bf720", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.6
[INFO] [stderr]     Checking 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::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[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] [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: build failed
[INFO] running `Command { std: "docker" "inspect" "5ba1ccba716cfa0419d97982ff5b4645d8843206646ab4e6599ca239454bf720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ba1ccba716cfa0419d97982ff5b4645d8843206646ab4e6599ca239454bf720", kill_on_drop: false }`
[INFO] [stdout] 5ba1ccba716cfa0419d97982ff5b4645d8843206646ab4e6599ca239454bf720