[INFO] fetching crate futures-channel 0.3.31...
[INFO] checking futures-channel-0.3.31 against try#306c6aded24f02440063be828ebe601fe5eb8323 for pr-133502-3
[INFO] extracting crate futures-channel 0.3.31 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate futures-channel 0.3.31 on toolchain 306c6aded24f02440063be828ebe601fe5eb8323
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-channel 0.3.31
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate futures-channel 0.3.31
[INFO] tweaked toml for crates.io crate futures-channel 0.3.31 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c8fc07afdd36fd606a2eb0de29d5936180f1d28a684e8cd92b9abfc4791c12b
[INFO] running `Command { std: "docker" "start" "-a" "5c8fc07afdd36fd606a2eb0de29d5936180f1d28a684e8cd92b9abfc4791c12b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c8fc07afdd36fd606a2eb0de29d5936180f1d28a684e8cd92b9abfc4791c12b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c8fc07afdd36fd606a2eb0de29d5936180f1d28a684e8cd92b9abfc4791c12b", kill_on_drop: false }`
[INFO] [stdout] 5c8fc07afdd36fd606a2eb0de29d5936180f1d28a684e8cd92b9abfc4791c12b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69402979e009f6ad35104fe610793342c6035eb0b9eff2c6fd1a4ced92d49582
[INFO] running `Command { std: "docker" "start" "-a" "69402979e009f6ad35104fe610793342c6035eb0b9eff2c6fd1a4ced92d49582", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-channel v0.3.31 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::channel::{mpsc, oneshot};
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::executor::{block_on, block_on_stream};
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::{poll_fn, FutureExt};
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::sink::{Sink, SinkExt};
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::stream::{Stream, StreamExt};
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::task::{Context, Poll};
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures_test`
[INFO] [stdout]  --> tests/mpsc.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use futures_test::task::{new_count_waker, noop_context};
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of unresolved module or unlinked crate `futures_test`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 8 - use futures_test::task::{new_count_waker, noop_context};
[INFO] [stdout] 8 + use futures_core::task::{new_count_waker, noop_context};
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `futures`
[INFO] [stdout]  --> tests/mpsc.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::pin_mut;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/oneshot.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::channel::oneshot::{self, Sender};
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/oneshot.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::executor::block_on;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::channel::mpsc;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::executor::block_on;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::Future;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::sink::SinkExt;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::stream::StreamExt;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::task::{Context, Poll};
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/channel.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::channel::mpsc;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/channel.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::executor::block_on;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/channel.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::poll_fn;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/channel.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::sink::SinkExt;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/channel.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::stream::StreamExt;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/oneshot.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::{poll_fn, FutureExt};
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/oneshot.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::task::{Context, Poll};
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures_test`
[INFO] [stdout]  --> tests/oneshot.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_test::task::panic_waker_ref;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of unresolved module or unlinked crate `futures_test`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 5 - use futures_test::task::panic_waker_ref;
[INFO] [stdout] 5 + use futures_core::task::panic_waker_ref;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> benches/sync_mpsc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     futures::{
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures_test`
[INFO] [stdout]   --> benches/sync_mpsc.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     futures_test::task::noop_context,
[INFO] [stdout]    |     ^^^^^^^^^^^^ use of unresolved module or unlinked crate `futures_test`
[INFO] [stdout]    |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 14 -     futures_test::task::noop_context,
[INFO] [stdout] 14 +     futures_core::task::noop_context,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `futures`
[INFO] [stdout]  --> benches/sync_mpsc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     futures::{
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc-size_hint.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::channel::mpsc;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]  --> tests/mpsc-size_hint.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::stream::Stream;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[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] [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 `futures-channel` (bench "sync_mpsc") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]  --> tests/mpsc-size_hint.rs:7:30
[INFO] [stdout]   |
[INFO] [stdout] 7 |     assert_eq!((0, None), rx.size_hint());
[INFO] [stdout]   |                              ^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]  --> tests/mpsc-size_hint.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     tx.unbounded_send(1).unwrap();
[INFO] [stdout]   |        ^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/channel.rs:27:34
[INFO] [stdout]    |
[INFO] [stdout] 27 |         sender.send(n - x).await.unwrap();
[INFO] [stdout]    |                                  ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel` (test "mpsc") due to 8 previous errors
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/mpsc-size_hint.rs:26:30
[INFO] [stdout]    |
[INFO] [stdout] 26 |     assert_eq!((0, None), rx.size_hint());
[INFO] [stdout]    |                              ^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/channel.rs:15:36
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let list: Vec<_> = block_on(rx.collect());
[INFO] [stdout]    |                                    ^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/oneshot.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |         assert!(tx.poll_canceled(cx).is_pending());
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/mpsc-size_hint.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     tx.try_send(1).unwrap();
[INFO] [stdout]    |        ^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/channel.rs:35:29
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let f = poll_fn(|cx| rx.poll_next_unpin(cx));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   --> tests/mpsc-close.rs:19:44
[INFO] [stdout]    |
[INFO] [stdout] 19 |     block_on(receiver.take(3).for_each(|_| futures::future::ready(())));
[INFO] [stdout]    |                                            ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::future;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `future`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 19 -     block_on(receiver.take(3).for_each(|_| futures::future::ready(())));
[INFO] [stdout] 19 +     block_on(receiver.take(3).for_each(|_| future::ready(())));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/channel.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |     block_on(tx.send(1)).unwrap();
[INFO] [stdout]    |                 ^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/channel.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |     block_on(tx.send(A)).unwrap();
[INFO] [stdout]    |                 ^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/oneshot.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |         block_on(tx.cancellation());
[INFO] [stdout]    |                     ^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/oneshot.rs:43:25
[INFO] [stdout]    |
[INFO] [stdout] 43 |             block_on(tx.cancellation());
[INFO] [stdout]    |                         ^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/oneshot.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |             tx2.send(()).unwrap();
[INFO] [stdout]    |                 ^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel` (test "channel") due to 10 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0282, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/oneshot.rs:64:19
[INFO] [stdout]    |
[INFO] [stdout] 64 |     assert_eq!(tx.poll_canceled(&mut cx), Poll::Pending);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel` (test "mpsc-close") due to 7 previous errors
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/oneshot.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     rx.close();
[INFO] [stdout]    |        ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/oneshot.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |         assert!(tx.poll_canceled(cx).is_ready());
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/oneshot.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |         rx.close();
[INFO] [stdout]    |            ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/oneshot.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |     block_on(tx.cancellation());
[INFO] [stdout]    |                 ^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel` (test "mpsc-size_hint") due to 6 previous errors
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/oneshot.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     assert!(!tx.is_canceled());
[INFO] [stdout]    |                 ^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> tests/oneshot.rs:111:25
[INFO] [stdout]     |
[INFO] [stdout] 111 |             let _ = otx.send(42);
[INFO] [stdout]     |                         ^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> tests/oneshot.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |         orx.close();
[INFO] [stdout]     |             ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel` (test "oneshot") due to 17 previous errors
[INFO] running `Command { std: "docker" "inspect" "69402979e009f6ad35104fe610793342c6035eb0b9eff2c6fd1a4ced92d49582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69402979e009f6ad35104fe610793342c6035eb0b9eff2c6fd1a4ced92d49582", kill_on_drop: false }`
[INFO] [stdout] 69402979e009f6ad35104fe610793342c6035eb0b9eff2c6fd1a4ced92d49582