[INFO] fetching crate linked-buffer 0.0.2...
[INFO] testing linked-buffer-0.0.2 against 1.90.0 for beta-1.91-3
[INFO] extracting crate linked-buffer 0.0.2 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate linked-buffer 0.0.2
[INFO] finished tweaking crates.io crate linked-buffer 0.0.2
[INFO] tweaked toml for crates.io crate linked-buffer 0.0.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate linked-buffer 0.0.2 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 30 packages to latest compatible versions
[INFO] [stderr]       Adding monoio v0.0.4 (available: v0.2.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded os_socketaddr v0.2.5
[INFO] [stderr]   Downloaded io-uring v0.5.13
[INFO] [stderr]   Downloaded monoio v0.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2420f020932dc96063f523d5eb3bbbc8f50cfafb9bed62ccf8e7bd6e5a5f41c6
[INFO] running `Command { std: "docker" "start" "-a" "2420f020932dc96063f523d5eb3bbbc8f50cfafb9bed62ccf8e7bd6e5a5f41c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2420f020932dc96063f523d5eb3bbbc8f50cfafb9bed62ccf8e7bd6e5a5f41c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2420f020932dc96063f523d5eb3bbbc8f50cfafb9bed62ccf8e7bd6e5a5f41c6", kill_on_drop: false }`
[INFO] [stdout] 2420f020932dc96063f523d5eb3bbbc8f50cfafb9bed62ccf8e7bd6e5a5f41c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66e14a3980f2bb843ae5021f6223ed19d55c7c4f003f1036d9a101ecacb6ecc3
[INFO] running `Command { std: "docker" "start" "-a" "66e14a3980f2bb843ae5021f6223ed19d55c7c4f003f1036d9a101ecacb6ecc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling io-uring v0.5.13
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling os_socketaddr v0.2.5
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling monoio v0.0.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![feature(generic_associated_types)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `generic_associated_types` has been stable since `1.65.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(box_into_inner)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(io_error_more)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/io/async_read_rent_ext.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 |     = impl Future<Output = BufResult<usize, T>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/io/async_write_rent_ext.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 |     = impl Future<Output = BufResult<usize, T>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/io/async_buf_read.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |     = impl Future<Output = std::io::Result<&'a [u8]>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/listener.rs:141:23
[INFO] [stdout]     |
[INFO] [stdout] 141 |     type Future<'a> = impl Future<Output = Option<Self::Item>>;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/split.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/split.rs:32:7
[INFO] [stdout]    |
[INFO] [stdout] 32 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/split.rs:50:7
[INFO] [stdout]    |
[INFO] [stdout] 50 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/split.rs:55:7
[INFO] [stdout]    |
[INFO] [stdout] 55 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/split.rs:59:7
[INFO] [stdout]    |
[INFO] [stdout] 59 |     = impl std::future::Future<Output = Result<(), std::io::Error>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/split.rs:146:7
[INFO] [stdout]     |
[INFO] [stdout] 146 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/split.rs:150:7
[INFO] [stdout]     |
[INFO] [stdout] 150 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/split.rs:188:7
[INFO] [stdout]     |
[INFO] [stdout] 188 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/split.rs:192:7
[INFO] [stdout]     |
[INFO] [stdout] 192 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/split.rs:193:31
[INFO] [stdout]     |
[INFO] [stdout] 193 |     type ShutdownFuture<'a> = impl std::future::Future<Output = Result<(), std::io::Error>>;
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/stream.rs:127:7
[INFO] [stdout]     |
[INFO] [stdout] 127 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/stream.rs:131:7
[INFO] [stdout]     |
[INFO] [stdout] 131 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/stream.rs:132:31
[INFO] [stdout]     |
[INFO] [stdout] 132 |     type ShutdownFuture<'a> = impl std::future::Future<Output = Result<(), std::io::Error>>;
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/stream.rs:162:7
[INFO] [stdout]     |
[INFO] [stdout] 162 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/stream.rs:166:7
[INFO] [stdout]     |
[INFO] [stdout] 166 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/listener.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |     type Future<'a> = impl Future<Output = Option<Self::Item>>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/split.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/split.rs:32:7
[INFO] [stdout]    |
[INFO] [stdout] 32 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/split.rs:50:7
[INFO] [stdout]    |
[INFO] [stdout] 50 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/split.rs:55:7
[INFO] [stdout]    |
[INFO] [stdout] 55 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/split.rs:59:7
[INFO] [stdout]    |
[INFO] [stdout] 59 |     = impl std::future::Future<Output = Result<(), std::io::Error>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/split.rs:146:7
[INFO] [stdout]     |
[INFO] [stdout] 146 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/split.rs:150:7
[INFO] [stdout]     |
[INFO] [stdout] 150 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/split.rs:167:7
[INFO] [stdout]     |
[INFO] [stdout] 167 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/split.rs:171:7
[INFO] [stdout]     |
[INFO] [stdout] 171 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/split.rs:172:31
[INFO] [stdout]     |
[INFO] [stdout] 172 |     type ShutdownFuture<'a> = impl std::future::Future<Output = Result<(), std::io::Error>>;
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/stream.rs:116:7
[INFO] [stdout]     |
[INFO] [stdout] 116 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/stream.rs:120:7
[INFO] [stdout]     |
[INFO] [stdout] 120 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/stream.rs:121:31
[INFO] [stdout]     |
[INFO] [stdout] 121 |     type ShutdownFuture<'a> = impl std::future::Future<Output = Result<(), std::io::Error>>;
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/stream.rs:151:7
[INFO] [stdout]     |
[INFO] [stdout] 151 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/stream.rs:155:7
[INFO] [stdout]     |
[INFO] [stdout] 155 |     = impl std::future::Future<Output = crate::BufResult<usize, B>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/stream/iter.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 31 |     = impl Future<Output = Option<Self::Item>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/stream/stream_ext.rs:69:7
[INFO] [stdout]    |
[INFO] [stdout] 69 |     = impl Future<Output = Option<Self::Item>>;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/stream/stream_ext.rs:103:7
[INFO] [stdout]     |
[INFO] [stdout] 103 |     = impl Future<Output = Option<Self::Item>>;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `B: IoBuf` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/stream.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |         op.write()
[INFO] [stdout]     |         ^^^^^^^^^^ the trait `IoBuf` is not implemented for `B`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `send::<impl Op<send::Send<T>>>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/driver/send.rs:16:9
[INFO] [stdout]     |
[INFO] [stdout]  16 | impl<T: IoBuf> Op<Send<T>> {
[INFO] [stdout]     |         ^^^^^ required by this bound in `send::<impl Op<Send<T>>>`
[INFO] [stdout] help: consider further restricting type parameter `B` with trait `IoBuf`
[INFO] [stdout]     |
[INFO] [stdout] 126 |         B: 'a + buf::io_buf::IoBuf,
[INFO] [stdout]     |               ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `B: IoVecBuf` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/stream.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         op.write()
[INFO] [stdout]     |         ^^^^^^^^^^ the trait `IoVecBuf` is not implemented for `B`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `write::<impl Op<WriteVec<T>>>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/driver/write.rs:52:9
[INFO] [stdout]     |
[INFO] [stdout]  52 | impl<T: IoVecBuf> Op<WriteVec<T>> {
[INFO] [stdout]     |         ^^^^^^^^ required by this bound in `write::<impl Op<WriteVec<T>>>`
[INFO] [stdout] help: consider further restricting type parameter `B` with trait `IoVecBuf`
[INFO] [stdout]     |
[INFO] [stdout] 130 |         B: 'a + buf::io_vec_buf::IoVecBuf,
[INFO] [stdout]     |               +++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `B: IoBufMut` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/stream.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         op.read()
[INFO] [stdout]     |         ^^^^^^^^^ the trait `IoBufMut` is not implemented for `B`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `recv::<impl Op<recv::Recv<T>>>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/driver/recv.rs:17:9
[INFO] [stdout]     |
[INFO] [stdout]  17 | impl<T: IoBufMut> Op<Recv<T>> {
[INFO] [stdout]     |         ^^^^^^^^ required by this bound in `recv::<impl Op<Recv<T>>>`
[INFO] [stdout] help: consider further restricting type parameter `B` with trait `IoBufMut`
[INFO] [stdout]     |
[INFO] [stdout] 161 |         B: 'a + buf::io_buf::IoBufMut,
[INFO] [stdout]     |               +++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `B: IoVecBufMut` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/tcp/stream.rs:177:9
[INFO] [stdout]     |
[INFO] [stdout] 177 |         op.read()
[INFO] [stdout]     |         ^^^^^^^^^ the trait `IoVecBufMut` is not implemented for `B`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `read::<impl Op<ReadVec<T>>>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/driver/read.rs:68:9
[INFO] [stdout]     |
[INFO] [stdout]  68 | impl<T: IoVecBufMut> Op<ReadVec<T>> {
[INFO] [stdout]     |         ^^^^^^^^^^^ required by this bound in `read::<impl Op<ReadVec<T>>>`
[INFO] [stdout] help: consider further restricting type parameter `B` with trait `IoVecBufMut`
[INFO] [stdout]     |
[INFO] [stdout] 165 |         B: 'a + buf::io_vec_buf::IoVecBufMut,
[INFO] [stdout]     |               ++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `B: IoBuf` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/stream.rs:126:9
[INFO] [stdout]     |
[INFO] [stdout] 126 |         op.write()
[INFO] [stdout]     |         ^^^^^^^^^^ the trait `IoBuf` is not implemented for `B`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `send::<impl Op<send::Send<T>>>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/driver/send.rs:16:9
[INFO] [stdout]     |
[INFO] [stdout]  16 | impl<T: IoBuf> Op<Send<T>> {
[INFO] [stdout]     |         ^^^^^ required by this bound in `send::<impl Op<Send<T>>>`
[INFO] [stdout] help: consider further restricting type parameter `B` with trait `IoBuf`
[INFO] [stdout]     |
[INFO] [stdout] 115 |         B: 'a + buf::io_buf::IoBuf,
[INFO] [stdout]     |               ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `B: IoVecBuf` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/stream.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |         op.write()
[INFO] [stdout]     |         ^^^^^^^^^^ the trait `IoVecBuf` is not implemented for `B`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `write::<impl Op<WriteVec<T>>>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/driver/write.rs:52:9
[INFO] [stdout]     |
[INFO] [stdout]  52 | impl<T: IoVecBuf> Op<WriteVec<T>> {
[INFO] [stdout]     |         ^^^^^^^^ required by this bound in `write::<impl Op<WriteVec<T>>>`
[INFO] [stdout] help: consider further restricting type parameter `B` with trait `IoVecBuf`
[INFO] [stdout]     |
[INFO] [stdout] 119 |         B: 'a + buf::io_vec_buf::IoVecBuf,
[INFO] [stdout]     |               +++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `B: IoBufMut` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/stream.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |         op.read()
[INFO] [stdout]     |         ^^^^^^^^^ the trait `IoBufMut` is not implemented for `B`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `recv::<impl Op<recv::Recv<T>>>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/driver/recv.rs:17:9
[INFO] [stdout]     |
[INFO] [stdout]  17 | impl<T: IoBufMut> Op<Recv<T>> {
[INFO] [stdout]     |         ^^^^^^^^ required by this bound in `recv::<impl Op<Recv<T>>>`
[INFO] [stdout] help: consider further restricting type parameter `B` with trait `IoBufMut`
[INFO] [stdout]     |
[INFO] [stdout] 150 |         B: 'a + buf::io_buf::IoBufMut,
[INFO] [stdout]     |               +++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `B: IoVecBufMut` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/net/unix/stream.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |         op.read()
[INFO] [stdout]     |         ^^^^^^^^^ the trait `IoVecBufMut` is not implemented for `B`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `read::<impl Op<ReadVec<T>>>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/driver/read.rs:68:9
[INFO] [stdout]     |
[INFO] [stdout]  68 | impl<T: IoVecBufMut> Op<ReadVec<T>> {
[INFO] [stdout]     |         ^^^^^^^^^^^ required by this bound in `read::<impl Op<ReadVec<T>>>`
[INFO] [stdout] help: consider further restricting type parameter `B` with trait `IoVecBufMut`
[INFO] [stdout]     |
[INFO] [stdout] 154 |         B: 'a + buf::io_vec_buf::IoVecBufMut,
[INFO] [stdout]     |               ++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unconstrained opaque type
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/stream/stream_ext.rs:44:38
[INFO] [stdout]    |
[INFO] [stdout] 44 | type ForEachFut<T: Stream, Fut, F> = impl Future<Output = ()>;
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ForEachFut` must be used in combination with a concrete type within the same crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/stream/stream_ext.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |       fn for_each<Fut, F>(mut self, mut f: F) -> ForEachFut<Self, Fut, F>
[INFO] [stdout]    |                                                  ------------------------ expected `ForEachFut<Self, Fut, F>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 34 | /         async move {
[INFO] [stdout] 35 | |             while let Some(item) = self.next().await {
[INFO] [stdout] 36 | |                 (f)(item).await;
[INFO] [stdout] 37 | |             }
[INFO] [stdout] 38 | |         }
[INFO] [stdout]    | |_________^ expected future, found `async` block
[INFO] [stdout] ...
[INFO] [stdout] 44 |   type ForEachFut<T: Stream, Fut, F> = impl Future<Output = ()>;
[INFO] [stdout]    |                                        ------------------------ the expected future
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected opaque type `ForEachFut<Self, Fut, F>`
[INFO] [stdout]             found `async` block `{async block@/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/stream/stream_ext.rs:34:9: 34:19}`
[INFO] [stdout] note: this item must have a `#[define_opaque(ForEachFut)]` attribute to be able to define hidden types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/monoio-0.0.4/src/stream/stream_ext.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn for_each<Fut, F>(mut self, mut f: F) -> ForEachFut<Self, Fut, F>
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monoio` (lib) due to 52 previous errors
[INFO] running `Command { std: "docker" "inspect" "66e14a3980f2bb843ae5021f6223ed19d55c7c4f003f1036d9a101ecacb6ecc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66e14a3980f2bb843ae5021f6223ed19d55c7c4f003f1036d9a101ecacb6ecc3", kill_on_drop: false }`
[INFO] [stdout] 66e14a3980f2bb843ae5021f6223ed19d55c7c4f003f1036d9a101ecacb6ecc3