[INFO] fetching crate channel-async 0.3.0-deprecated...
[INFO] checking channel-async-0.3.0-deprecated against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate channel-async 0.3.0-deprecated into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate channel-async 0.3.0-deprecated on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate channel-async 0.3.0-deprecated
[INFO] finished tweaking crates.io crate channel-async 0.3.0-deprecated
[INFO] tweaked toml for crates.io crate channel-async 0.3.0-deprecated written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-channel v0.3.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ac4f0fc6200bb5fbea3bdf894852a26327478397c198d8962caf0c6705c82c9
[INFO] running `Command { std: "docker" "start" "-a" "6ac4f0fc6200bb5fbea3bdf894852a26327478397c198d8962caf0c6705c82c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ac4f0fc6200bb5fbea3bdf894852a26327478397c198d8962caf0c6705c82c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ac4f0fc6200bb5fbea3bdf894852a26327478397c198d8962caf0c6705c82c9", kill_on_drop: false }`
[INFO] [stdout] 6ac4f0fc6200bb5fbea3bdf894852a26327478397c198d8962caf0c6705c82c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9784c4b898d096f0c90e81e80b9b4a3a609844907fbcb096825876cf31f0d7bb
[INFO] running `Command { std: "docker" "start" "-a" "9784c4b898d096f0c90e81e80b9b4a3a609844907fbcb096825876cf31f0d7bb", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking channel-async v0.3.0-deprecated (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tokio::timer`
[INFO] [stdout]  --> src/receiver.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tokio::timer::Delay;
[INFO] [stdout]   |            ^^^^^ could not find `timer` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `timer` in `tokio`
[INFO] [stdout]   --> src/receiver.rs:42:48
[INFO] [stdout]    |
[INFO] [stdout] 42 |                         *pending = Some(tokio::timer::delay_for(*delay));
[INFO] [stdout]    |                                                ^^^^^ could not find `timer` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `timer` in `tokio`
[INFO] [stdout]   --> src/sender.rs:26:28
[INFO] [stdout]    |
[INFO] [stdout] 26 |                     tokio::timer::delay_for(self.delay).await;
[INFO] [stdout]    |                            ^^^^^ could not find `timer` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `Pin<&mut T>`
[INFO] [stdout]   --> src/receiver.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     let pin_pending = unsafe { Pin::new_unchecked(pending_value) };
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout] 48 |                     futures::ready!(pin_pending.poll(cx));
[INFO] [stdout]    |                                                 ---- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `pin_pending` an explicit type, where the type for type parameter `T` is specified
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     let pin_pending: Pin<&mut T> = unsafe { Pin::new_unchecked(pending_value) };
[INFO] [stdout]    |                                    +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::future::Future`
[INFO] [stdout]  --> src/receiver.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::future::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `channel-async` (lib) due to 5 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9784c4b898d096f0c90e81e80b9b4a3a609844907fbcb096825876cf31f0d7bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9784c4b898d096f0c90e81e80b9b4a3a609844907fbcb096825876cf31f0d7bb", kill_on_drop: false }`
[INFO] [stdout] 9784c4b898d096f0c90e81e80b9b4a3a609844907fbcb096825876cf31f0d7bb
[INFO] checking channel-async-0.3.0-deprecated against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] extracting crate channel-async 0.3.0-deprecated into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate channel-async 0.3.0-deprecated on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate channel-async 0.3.0-deprecated
[INFO] finished tweaking crates.io crate channel-async 0.3.0-deprecated
[INFO] tweaked toml for crates.io crate channel-async 0.3.0-deprecated written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d1252819b858aa3da2c6921e09c4b3551a67e7aa34d5b0624d55b4540d74b47
[INFO] running `Command { std: "docker" "start" "-a" "7d1252819b858aa3da2c6921e09c4b3551a67e7aa34d5b0624d55b4540d74b47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d1252819b858aa3da2c6921e09c4b3551a67e7aa34d5b0624d55b4540d74b47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d1252819b858aa3da2c6921e09c4b3551a67e7aa34d5b0624d55b4540d74b47", kill_on_drop: false }`
[INFO] [stdout] 7d1252819b858aa3da2c6921e09c4b3551a67e7aa34d5b0624d55b4540d74b47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74d8728e7ce03f312408df336cf14f0affe5b99446d57d42933ebd9d2a6cf970
[INFO] running `Command { std: "docker" "start" "-a" "74d8728e7ce03f312408df336cf14f0affe5b99446d57d42933ebd9d2a6cf970", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking channel-async v0.3.0-deprecated (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tokio::timer`
[INFO] [stdout]  --> src/receiver.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tokio::timer::Delay;
[INFO] [stdout]   |            ^^^^^ could not find `timer` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio::timer`
[INFO] [stdout]  --> src/receiver.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tokio::timer::Delay;
[INFO] [stdout]   |            ^^^^^ could not find `timer` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]   --> src/lib.rs:54:14
[INFO] [stdout]    |
[INFO] [stdout] 54 |     #[tokio::test]
[INFO] [stdout]    |              ^^^^ could not find `test` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]   --> src/lib.rs:76:14
[INFO] [stdout]    |
[INFO] [stdout] 76 |     #[tokio::test]
[INFO] [stdout]    |              ^^^^ could not find `test` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `test` in `tokio`
[INFO] [stdout]    --> src/lib.rs:101:14
[INFO] [stdout]     |
[INFO] [stdout] 101 |     #[tokio::test]
[INFO] [stdout]     |              ^^^^ could not find `test` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `timer` in `tokio`
[INFO] [stdout]   --> src/receiver.rs:42:48
[INFO] [stdout]    |
[INFO] [stdout] 42 |                         *pending = Some(tokio::timer::delay_for(*delay));
[INFO] [stdout]    |                                                ^^^^^ could not find `timer` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `timer` in `tokio`
[INFO] [stdout]   --> src/sender.rs:26:28
[INFO] [stdout]    |
[INFO] [stdout] 26 |                     tokio::timer::delay_for(self.delay).await;
[INFO] [stdout]    |                            ^^^^^ could not find `timer` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `timer` in `tokio`
[INFO] [stdout]   --> src/receiver.rs:42:48
[INFO] [stdout]    |
[INFO] [stdout] 42 |                         *pending = Some(tokio::timer::delay_for(*delay));
[INFO] [stdout]    |                                                ^^^^^ could not find `timer` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `timer` in `tokio`
[INFO] [stdout]   --> src/sender.rs:26:28
[INFO] [stdout]    |
[INFO] [stdout] 26 |                     tokio::timer::delay_for(self.delay).await;
[INFO] [stdout]    |                            ^^^^^ could not find `timer` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `timer` in `tokio`
[INFO] [stdout]   --> src/lib.rs:83:28
[INFO] [stdout]    |
[INFO] [stdout] 83 |                     tokio::timer::delay_for(Duration::from_millis(100)).await;
[INFO] [stdout]    |                            ^^^^^ could not find `timer` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `timer` in `tokio`
[INFO] [stdout]    --> src/lib.rs:108:28
[INFO] [stdout]     |
[INFO] [stdout] 108 |                     tokio::timer::delay_for(Duration::from_millis(100)).await;
[INFO] [stdout]     |                            ^^^^^ could not find `timer` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `spawn` in crate `tokio`
[INFO] [stdout]    --> src/lib.rs:69:16
[INFO] [stdout]     |
[INFO] [stdout] 69  |         tokio::spawn(send_fut);
[INFO] [stdout]     |                ^^^^^ not found in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.25/src/lib.rs:390:19
[INFO] [stdout]     |
[INFO] [stdout] 390 |     pub use task::spawn;
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout]     = note: the item is gated behind the `rt-core` feature
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 51  +     use std::thread::spawn;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `spawn`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 69  -         tokio::spawn(send_fut);
[INFO] [stdout] 69  +         spawn(send_fut);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `spawn` in crate `tokio`
[INFO] [stdout]    --> src/lib.rs:94:16
[INFO] [stdout]     |
[INFO] [stdout] 94  |         tokio::spawn(send_fut);
[INFO] [stdout]     |                ^^^^^ not found in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.25/src/lib.rs:390:19
[INFO] [stdout]     |
[INFO] [stdout] 390 |     pub use task::spawn;
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout]     = note: the item is gated behind the `rt-core` feature
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 51  +     use std::thread::spawn;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `spawn`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 94  -         tokio::spawn(send_fut);
[INFO] [stdout] 94  +         spawn(send_fut);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `spawn` in crate `tokio`
[INFO] [stdout]    --> src/lib.rs:119:16
[INFO] [stdout]     |
[INFO] [stdout] 119 |         tokio::spawn(send_fut);
[INFO] [stdout]     |                ^^^^^ not found in `tokio`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.2.25/src/lib.rs:390:19
[INFO] [stdout]     |
[INFO] [stdout] 390 |     pub use task::spawn;
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout]     = note: the item is gated behind the `rt-core` feature
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 51  +     use std::thread::spawn;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `spawn`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 119 -         tokio::spawn(send_fut);
[INFO] [stdout] 119 +         spawn(send_fut);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Duration` is imported redundantly
[INFO] [stdout]   --> src/receiver.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     use super::*;
[INFO] [stdout]    |         -------- the item `Duration` is already imported here
[INFO] [stdout] 59 |     use std::time::Duration;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `Pin<&mut T>`
[INFO] [stdout]   --> src/receiver.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     let pin_pending = unsafe { Pin::new_unchecked(pending_value) };
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout] 48 |                     futures::ready!(pin_pending.poll(cx));
[INFO] [stdout]    |                                                 ---- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `pin_pending` an explicit type, where the type for type parameter `T` is specified
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     let pin_pending: Pin<&mut T> = unsafe { Pin::new_unchecked(pending_value) };
[INFO] [stdout]    |                                    +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `Pin<&mut T>`
[INFO] [stdout]   --> src/receiver.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     let pin_pending = unsafe { Pin::new_unchecked(pending_value) };
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout] 48 |                     futures::ready!(pin_pending.poll(cx));
[INFO] [stdout]    |                                                 ---- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `pin_pending` an explicit type, where the type for type parameter `T` is specified
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     let pin_pending: Pin<&mut T> = unsafe { Pin::new_unchecked(pending_value) };
[INFO] [stdout]    |                                    +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::future::Future`
[INFO] [stdout]  --> src/receiver.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::future::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `channel-async` (lib) due to 5 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `std::future::Future`
[INFO] [stdout]  --> src/receiver.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::future::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0425, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `channel-async` (lib test) due to 13 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "74d8728e7ce03f312408df336cf14f0affe5b99446d57d42933ebd9d2a6cf970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74d8728e7ce03f312408df336cf14f0affe5b99446d57d42933ebd9d2a6cf970", kill_on_drop: false }`
[INFO] [stdout] 74d8728e7ce03f312408df336cf14f0affe5b99446d57d42933ebd9d2a6cf970
