[INFO] crate futures-cputask 0.3.0 is already in cache
[INFO] testing futures-cputask-0.3.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate futures-cputask 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate futures-cputask 0.3.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate futures-cputask 0.3.0
[INFO] finished tweaking crates.io crate futures-cputask 0.3.0
[INFO] tweaked toml for crates.io crate futures-cputask 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c0d110be3070b823a075658c5bca6f86f2f64e383b9d3529b950435c7b8a136c
[INFO] running `"docker" "start" "-a" "c0d110be3070b823a075658c5bca6f86f2f64e383b9d3529b950435c7b8a136c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling uvth v4.0.1
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling futures-cputask v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.93s
[INFO] running `"docker" "inspect" "c0d110be3070b823a075658c5bca6f86f2f64e383b9d3529b950435c7b8a136c"`
[INFO] running `"docker" "rm" "-f" "c0d110be3070b823a075658c5bca6f86f2f64e383b9d3529b950435c7b8a136c"`
[INFO] [stdout] c0d110be3070b823a075658c5bca6f86f2f64e383b9d3529b950435c7b8a136c
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dd347e735f53ed6a84524ba36cb696c891dee6a255f248df1ab61395c86071c4
[INFO] running `"docker" "start" "-a" "dd347e735f53ed6a84524ba36cb696c891dee6a255f248df1ab61395c86071c4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling futures-cputask v0.3.0 (/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:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[async_task]
[INFO] [stderr]   |   ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FutureObj`, `Spawn`
[INFO] [stderr]  --> tests/pool-test.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | use futures::task::{FutureObj, Spawn};
[INFO] [stderr]   |                     ^^^^^^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `i64: core::future::future::Future` is not satisfied
[INFO] [stderr]   --> tests/pool-test.rs:10:16
[INFO] [stderr]    |
[INFO] [stderr] 10 |     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]    = note: required by `core::future::future::Future::poll`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors; 1 warning emitted
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "dd347e735f53ed6a84524ba36cb696c891dee6a255f248df1ab61395c86071c4"`
[INFO] running `"docker" "rm" "-f" "dd347e735f53ed6a84524ba36cb696c891dee6a255f248df1ab61395c86071c4"`
[INFO] [stdout] dd347e735f53ed6a84524ba36cb696c891dee6a255f248df1ab61395c86071c4