[INFO] crate futures-executor-preview 0.3.0-alpha.10 is already in cache
[INFO] extracting crate futures-executor-preview 0.3.0-alpha.10 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/futures-executor-preview/0.3.0-alpha.10
[INFO] extracting crate futures-executor-preview 0.3.0-alpha.10 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/futures-executor-preview/0.3.0-alpha.10
[INFO] validating manifest of futures-executor-preview-0.3.0-alpha.10 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of futures-executor-preview-0.3.0-alpha.10 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing futures-executor-preview-0.3.0-alpha.10
[INFO] finished frobbing futures-executor-preview-0.3.0-alpha.10
[INFO] frobbed toml for futures-executor-preview-0.3.0-alpha.10 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/futures-executor-preview/0.3.0-alpha.10/Cargo.toml
[INFO] started frobbing futures-executor-preview-0.3.0-alpha.10
[INFO] finished frobbing futures-executor-preview-0.3.0-alpha.10
[INFO] frobbed toml for futures-executor-preview-0.3.0-alpha.10 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/futures-executor-preview/0.3.0-alpha.10/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing futures-executor-preview-0.3.0-alpha.10 against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/futures-executor-preview/0.3.0-alpha.10:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 26da47e80f916340221877b3abc6ca00d4893cf0173284a9f6e029ddcffb6a92
[INFO] running `"docker" "start" "-a" "26da47e80f916340221877b3abc6ca00d4893cf0173284a9f6e029ddcffb6a92"`
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.12
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.10 (/opt/crater/workdir)
[INFO] [stderr] warning: the feature `pin` has been stable since 1.33.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(pin, arbitrary_self_types, futures_api)]
[INFO] [stderr]   |            ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.30s
[INFO] running `"docker" "inspect" "26da47e80f916340221877b3abc6ca00d4893cf0173284a9f6e029ddcffb6a92"`
[INFO] running `"docker" "rm" "-f" "26da47e80f916340221877b3abc6ca00d4893cf0173284a9f6e029ddcffb6a92"`
[INFO] [stdout] 26da47e80f916340221877b3abc6ca00d4893cf0173284a9f6e029ddcffb6a92
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/futures-executor-preview/0.3.0-alpha.10:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7286801d6ae3b3389a97439d9b48f8ea869782ba5a94cc0cf149f51475600318
[INFO] running `"docker" "start" "-a" "7286801d6ae3b3389a97439d9b48f8ea869782ba5a94cc0cf149f51475600318"`
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.10 (/opt/crater/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures`
[INFO] [stderr]  --> tests/local_pool.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use futures::channel::oneshot;
[INFO] [stderr]   |     ^^^^^^^ use of undeclared type or module `futures`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures`
[INFO] [stderr]  --> tests/local_pool.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use futures::executor::LocalPool;
[INFO] [stderr]   |     ^^^^^^^ use of undeclared type or module `futures`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures`
[INFO] [stderr]  --> tests/local_pool.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use futures::future::{Future, lazy};
[INFO] [stderr]   |     ^^^^^^^ use of undeclared type or module `futures`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures`
[INFO] [stderr]  --> tests/local_pool.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures::task::{LocalWaker, Poll, Spawn, LocalSpawn};
[INFO] [stderr]   |     ^^^^^^^ use of undeclared type or module `futures`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Poll`
[INFO] [stderr]   --> tests/local_pool.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         Poll::Pending
[INFO] [stderr]    |         ^^^^ use of undeclared type or module `Poll`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `LocalPool`
[INFO] [stderr]   --> tests/local_pool.rs:30:24
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let mut pool = LocalPool::new();
[INFO] [stderr]    |                        ^^^^^^^^^ use of undeclared type or module `LocalPool`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `pin` has been stable since 1.33.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(pin, arbitrary_self_types, futures_api)]
[INFO] [stderr]   |            ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `LocalPool`
[INFO] [stderr]   --> tests/local_pool.rs:43:20
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let mut pool = LocalPool::new();
[INFO] [stderr]    |                    ^^^^^^^^^ use of undeclared type or module `LocalPool`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `oneshot`
[INFO] [stderr]   --> tests/local_pool.rs:51:20
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let (tx, rx) = oneshot::channel();
[INFO] [stderr]    |                    ^^^^^^^ use of undeclared type or module `oneshot`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `LocalPool`
[INFO] [stderr]   --> tests/local_pool.rs:52:20
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut pool = LocalPool::new();
[INFO] [stderr]    |                    ^^^^^^^^^ use of undeclared type or module `LocalPool`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `LocalPool`
[INFO] [stderr]   --> tests/local_pool.rs:66:20
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let mut pool = LocalPool::new();
[INFO] [stderr]    |                    ^^^^^^^^^ use of undeclared type or module `LocalPool`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `LocalPool`
[INFO] [stderr]   --> tests/local_pool.rs:90:20
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let mut pool = LocalPool::new();
[INFO] [stderr]    |                    ^^^^^^^^^ use of undeclared type or module `LocalPool`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `LocalPool`
[INFO] [stderr]    --> tests/local_pool.rs:109:20
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let mut pool = LocalPool::new();
[INFO] [stderr]     |                    ^^^^^^^^^ use of undeclared type or module `LocalPool`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `LocalPool`
[INFO] [stderr]    --> tests/local_pool.rs:113:24
[INFO] [stderr]     |
[INFO] [stderr] 113 |         let mut pool = LocalPool::new();
[INFO] [stderr]     |                        ^^^^^^^^^ use of undeclared type or module `LocalPool`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Poll`
[INFO] [stderr]    --> tests/local_pool.rs:140:28
[INFO] [stderr]     |
[INFO] [stderr] 140 |                     return Poll::Ready(());
[INFO] [stderr]     |                            ^^^^ use of undeclared type or module `Poll`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Poll`
[INFO] [stderr]    --> tests/local_pool.rs:147:24
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 return Poll::Ready(());
[INFO] [stderr]     |                        ^^^^ use of undeclared type or module `Poll`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Poll`
[INFO] [stderr]    --> tests/local_pool.rs:151:13
[INFO] [stderr]     |
[INFO] [stderr] 151 |             Poll::Pending
[INFO] [stderr]     |             ^^^^ use of undeclared type or module `Poll`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `LocalPool`
[INFO] [stderr]    --> tests/local_pool.rs:155:20
[INFO] [stderr]     |
[INFO] [stderr] 155 |     let mut pool = LocalPool::new();
[INFO] [stderr]     |                    ^^^^^^^^^ use of undeclared type or module `LocalPool`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Future` in this scope
[INFO] [stderr]   --> tests/local_pool.rs:13:6
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl Future for Pending {
[INFO] [stderr]    |      ^^^^^^ not found in this scope
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use core::future::Future;
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_core::Future;
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_core::future::Future;
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_util::core_reexport::future::Future;
[INFO] [stderr]    |
[INFO] [stderr] and 2 other candidates
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `LocalWaker` in this scope
[INFO] [stderr]   --> tests/local_pool.rs:16:41
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn poll(self: Pin<&mut Self>, _lw: &LocalWaker) -> Poll<()> {
[INFO] [stderr]    |                                         ^^^^^^^^^^ not found in this scope
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use core::task::LocalWaker;
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_core::task::LocalWaker;
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_util::core_reexport::task::LocalWaker;
[INFO] [stderr]    |
[INFO] [stderr] 3  | use pin_utils::core_reexport::task::LocalWaker;
[INFO] [stderr]    |
[INFO] [stderr] and 1 other candidates
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Poll` in this scope
[INFO] [stderr]   --> tests/local_pool.rs:16:56
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn poll(self: Pin<&mut Self>, _lw: &LocalWaker) -> Poll<()> {
[INFO] [stderr]    |                                                        ^^^^ not found in this scope
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use core::task::Poll;
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_core::Poll;
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_core::task::Poll;
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_util::core_reexport::task::Poll;
[INFO] [stderr]    |
[INFO] [stderr] and 2 other candidates
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `lazy` in this scope
[INFO] [stderr]   --> tests/local_pool.rs:31:19
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let fut = lazy(|_| {
[INFO] [stderr]    |                   ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_util::future::lazy;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `lazy` in this scope
[INFO] [stderr]   --> tests/local_pool.rs:46:31
[INFO] [stderr]    |
[INFO] [stderr] 46 |     assert_eq!(pool.run_until(lazy(|_| ())), ());
[INFO] [stderr]    |                               ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_util::future::lazy;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `lazy` in this scope
[INFO] [stderr]   --> tests/local_pool.rs:54:39
[INFO] [stderr]    |
[INFO] [stderr] 54 |     spawn.spawn_local_obj(Box::pinned(lazy(move |_| {
[INFO] [stderr]    |                                       ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_util::future::lazy;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `lazy` in this scope
[INFO] [stderr]   --> tests/local_pool.rs:70:39
[INFO] [stderr]    |
[INFO] [stderr] 70 |     spawn.spawn_local_obj(Box::pinned(lazy(move |_| {
[INFO] [stderr]    |                                       ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_util::future::lazy;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `lazy` in this scope
[INFO] [stderr]   --> tests/local_pool.rs:71:44
[INFO] [stderr]    |
[INFO] [stderr] 71 |         spawn2.spawn_local_obj(Box::pinned(lazy(move |_| {
[INFO] [stderr]    |                                            ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_util::future::lazy;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `lazy` in this scope
[INFO] [stderr]   --> tests/local_pool.rs:95:43
[INFO] [stderr]    |
[INFO] [stderr] 95 |         spawn.spawn_local_obj(Box::pinned(lazy(move |_| {
[INFO] [stderr]    |                                           ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 3  | use futures_util::future::lazy;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `lazy` in this scope
[INFO] [stderr]    --> tests/local_pool.rs:112:33
[INFO] [stderr]     |
[INFO] [stderr] 112 |     spawn.spawn_obj(Box::pinned(lazy(|_| {
[INFO] [stderr]     |                                 ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 3   | use futures_util::future::lazy;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Future` in this scope
[INFO] [stderr]    --> tests/local_pool.rs:128:10
[INFO] [stderr]     |
[INFO] [stderr] 128 |     impl Future for Spin {
[INFO] [stderr]     |          ^^^^^^ not found in this scope
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 3   | use core::future::Future;
[INFO] [stderr]     |
[INFO] [stderr] 3   | use futures_core::Future;
[INFO] [stderr]     |
[INFO] [stderr] 3   | use futures_core::future::Future;
[INFO] [stderr]     |
[INFO] [stderr] 3   | use futures_util::core_reexport::future::Future;
[INFO] [stderr]     |
[INFO] [stderr] and 2 other candidates
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `LocalWaker` in this scope
[INFO] [stderr]    --> tests/local_pool.rs:131:44
[INFO] [stderr]     |
[INFO] [stderr] 131 |         fn poll(self: Pin<&mut Self>, lw: &LocalWaker) -> Poll<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^^ not found in this scope
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 3   | use core::task::LocalWaker;
[INFO] [stderr]     |
[INFO] [stderr] 3   | use futures_core::task::LocalWaker;
[INFO] [stderr]     |
[INFO] [stderr] 3   | use futures_util::core_reexport::task::LocalWaker;
[INFO] [stderr]     |
[INFO] [stderr] 3   | use pin_utils::core_reexport::task::LocalWaker;
[INFO] [stderr]     |
[INFO] [stderr] and 1 other candidates
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Poll` in this scope
[INFO] [stderr]    --> tests/local_pool.rs:131:59
[INFO] [stderr]     |
[INFO] [stderr] 131 |         fn poll(self: Pin<&mut Self>, lw: &LocalWaker) -> Poll<()> {
[INFO] [stderr]     |                                                           ^^^^ not found in this scope
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 3   | use core::task::Poll;
[INFO] [stderr]     |
[INFO] [stderr] 3   | use futures_core::Poll;
[INFO] [stderr]     |
[INFO] [stderr] 3   | use futures_core::task::Poll;
[INFO] [stderr]     |
[INFO] [stderr] 3   | use futures_util::core_reexport::task::Poll;
[INFO] [stderr]     |
[INFO] [stderr] and 2 other candidates
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::channel::oneshot`
[INFO] [stderr]  --> tests/local_pool.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use futures::channel::oneshot;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::executor::LocalPool`
[INFO] [stderr]  --> tests/local_pool.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use futures::executor::LocalPool;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Future`, `lazy`
[INFO] [stderr]  --> tests/local_pool.rs:5:23
[INFO] [stderr]   |
[INFO] [stderr] 5 | use futures::future::{Future, lazy};
[INFO] [stderr]   |                       ^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `LocalSpawn`, `LocalWaker`, `Poll`, `Spawn`
[INFO] [stderr]  --> tests/local_pool.rs:6:21
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures::task::{LocalWaker, Poll, Spawn, LocalSpawn};
[INFO] [stderr]   |                     ^^^^^^^^^^  ^^^^  ^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 30 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors occurred: E0405, E0412, E0425, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: Could not compile `futures-executor-preview`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7286801d6ae3b3389a97439d9b48f8ea869782ba5a94cc0cf149f51475600318"`
[INFO] running `"docker" "rm" "-f" "7286801d6ae3b3389a97439d9b48f8ea869782ba5a94cc0cf149f51475600318"`
[INFO] [stdout] 7286801d6ae3b3389a97439d9b48f8ea869782ba5a94cc0cf149f51475600318