[INFO] fetching crate futures-cputask 0.3.0-alpha.19...
[INFO] checking futures-cputask-0.3.0-alpha.19 against beta-2019-10-27 for pr-65897
[INFO] extracting crate futures-cputask 0.3.0-alpha.19 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate futures-cputask 0.3.0-alpha.19 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate futures-cputask 0.3.0-alpha.19
[INFO] finished tweaking crates.io crate futures-cputask 0.3.0-alpha.19
[INFO] tweaked toml for crates.io crate futures-cputask 0.3.0-alpha.19 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7249a76e665342912b70743fb9136016da01d070d60f80c3720e4d1c3f7cca11
[INFO] running `"docker" "start" "-a" "7249a76e665342912b70743fb9136016da01d070d60f80c3720e4d1c3f7cca11"`
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking uvth v4.0.0
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-cputask v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `futures_cputask::async_task`
[INFO] [stderr]  --> tests/pool-test.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use futures_cputask::async_task;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `async_task` in the root
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the attribute macro `async_task`
[INFO] [stderr]  --> tests/pool-test.rs:3:3
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[async_task]
[INFO] [stderr]   |   ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `i64: core::future::future::Future` is not satisfied
[INFO] [stderr]    --> tests/pool-test.rs:9:16
[INFO] [stderr]     |
[INFO] [stderr] 9   |     assert_eq!(long_running_task().await, 4_999_999_950_000_000);
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `core::future::future::Future` is not implemented for `i64`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0432.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `futures-cputask`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7249a76e665342912b70743fb9136016da01d070d60f80c3720e4d1c3f7cca11"`
[INFO] running `"docker" "rm" "-f" "7249a76e665342912b70743fb9136016da01d070d60f80c3720e4d1c3f7cca11"`
[INFO] [stdout] 7249a76e665342912b70743fb9136016da01d070d60f80c3720e4d1c3f7cca11