[INFO] fetching crate futures-util-preview 0.3.0-alpha.19...
[INFO] documenting futures-util-preview-0.3.0-alpha.19 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate futures-util-preview 0.3.0-alpha.19 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate futures-util-preview 0.3.0-alpha.19 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-util-preview 0.3.0-alpha.19
[INFO] finished tweaking crates.io crate futures-util-preview 0.3.0-alpha.19
[INFO] tweaked toml for crates.io crate futures-util-preview 0.3.0-alpha.19 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded futures-join-macro-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded futures-select-macro-preview v0.3.0-alpha.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ecaf180135df09c882c47b768aca7a5ac86b92f3e5392147c62b34971fc519f
[INFO] running `Command { std: "docker" "start" "-a" "5ecaf180135df09c882c47b768aca7a5ac86b92f3e5392147c62b34971fc519f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ecaf180135df09c882c47b768aca7a5ac86b92f3e5392147c62b34971fc519f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ecaf180135df09c882c47b768aca7a5ac86b92f3e5392147c62b34971fc519f", kill_on_drop: false }`
[INFO] [stdout] 5ecaf180135df09c882c47b768aca7a5ac86b92f3e5392147c62b34971fc519f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd7c5d244142c68457fa453bfd00351b9822e3c0bc493e466a0ec6f3ddeae10d
[INFO] running `Command { std: "docker" "start" "-a" "dd7c5d244142c68457fa453bfd00351b9822e3c0bc493e466a0ec6f3ddeae10d", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]  Documenting futures-util-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `select`
[INFO] [stdout]    --> src/try_future/mod.rs:173:17
[INFO] [stdout]     |
[INFO] [stdout] 173 |     /// using [`select!`] or [`join!`].
[INFO] [stdout]     |                 ^^^^^^^ no item named `select` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout]     = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `join`
[INFO] [stdout]    --> src/try_future/mod.rs:173:32
[INFO] [stdout]     |
[INFO] [stdout] 173 |     /// using [`select!`] or [`join!`].
[INFO] [stdout]     |                                ^^^^^ no item named `join` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `select`
[INFO] [stdout]    --> src/try_future/mod.rs:220:27
[INFO] [stdout]     |
[INFO] [stdout] 220 |     /// type when using [`select!`] or [`join!`].
[INFO] [stdout]     |                           ^^^^^^^ no item named `select` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `join`
[INFO] [stdout]    --> src/try_future/mod.rs:220:42
[INFO] [stdout]     |
[INFO] [stdout] 220 |     /// type when using [`select!`] or [`join!`].
[INFO] [stdout]     |                                          ^^^^^ no item named `join` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `select`
[INFO] [stdout]     --> src/stream/mod.rs:1154:15
[INFO] [stdout]      |
[INFO] [stdout] 1154 |     /// the [`select!`] macro.
[INFO] [stdout]      |               ^^^^^^^ this link resolves to the module `select`, which is not in the macro namespace
[INFO] [stdout]      |
[INFO] [stdout] help: to link to the module, prefix with `mod@`
[INFO] [stdout]      |
[INFO] [stdout] 1154 -     /// the [`select!`] macro.
[INFO] [stdout] 1154 +     /// the [`mod@select`] macro.
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `select`
[INFO] [stdout]     --> src/stream/mod.rs:1158:11
[INFO] [stdout]      |
[INFO] [stdout] 1158 |     /// [`select!`] macro will prevent this.
[INFO] [stdout]      |           ^^^^^^^ this link resolves to the module `select`, which is not in the macro namespace
[INFO] [stdout]      |
[INFO] [stdout] help: to link to the module, prefix with `mod@`
[INFO] [stdout]      |
[INFO] [stdout] 1158 -     /// [`select!`] macro will prevent this.
[INFO] [stdout] 1158 +     /// [`mod@select`] macro will prevent this.
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `SpawnExt::spawn_with_handle`
[INFO] [stdout]   --> src/task/spawn.rs:26:43
[INFO] [stdout]    |
[INFO] [stdout] 26 |     /// You can use [`spawn_with_handle`](SpawnExt::spawn_with_handle) if
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `SpawnExt` has no associated item named `spawn_with_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `SpawnExt::spawn_with_handle`
[INFO] [stdout]    --> src/task/spawn.rs:103:43
[INFO] [stdout]     |
[INFO] [stdout] 103 |     /// You can use [`spawn_with_handle`](SpawnExt::spawn_with_handle) if
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `SpawnExt` has no associated item named `spawn_with_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]   --> src/future/option.rs:10:59
[INFO] [stdout]    |
[INFO] [stdout] 10 | /// Created by the [`From`] implementation for [`Option`](std::option::Option).
[INFO] [stdout]    |                                                 --------  ^^^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]    |                                                 |
[INFO] [stdout]    |                                                 because label contains path that resolves to same destination
[INFO] [stdout]    |
[INFO] [stdout]    = note: when a link's destination is not specified,
[INFO] [stdout]            the label is used to resolve intra-doc links
[INFO] [stdout]    = note: `#[warn(rustdoc::redundant_explicit_links)]` on by default
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]    |
[INFO] [stdout] 10 | /// Created by the [`From`] implementation for [`Option`].
[INFO] [stdout]    |                                                ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]    --> src/try_future/mod.rs:214:28
[INFO] [stdout]     |
[INFO] [stdout] 214 |     /// using the [`Into`](std::convert::Into) trait.
[INFO] [stdout]     |                    ------  ^^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    because label contains path that resolves to same destination
[INFO] [stdout]     |
[INFO] [stdout]     = note: when a link's destination is not specified,
[INFO] [stdout]             the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]     |
[INFO] [stdout] 214 |     /// using the [`Into`] trait.
[INFO] [stdout]     |                   ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]    --> src/stream/mod.rs:445:20
[INFO] [stdout]     |
[INFO] [stdout] 445 |     /// [`Extend`](std::iter::Extend) trait.
[INFO] [stdout]     |          --------  ^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]     |          |
[INFO] [stdout]     |          because label contains path that resolves to same destination
[INFO] [stdout]     |
[INFO] [stdout]     = note: when a link's destination is not specified,
[INFO] [stdout]             the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]     |
[INFO] [stdout] 445 |     /// [`Extend`] trait.
[INFO] [stdout]     |         ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]    --> src/try_stream/mod.rs:221:76
[INFO] [stdout]     |
[INFO] [stdout] 221 |     /// The returned value of the closure must implement the [`TryFuture`](futures_core::future::TryFuture) trait
[INFO] [stdout]     |                                                               -----------  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]     |                                                               |
[INFO] [stdout]     |                                                               because label contains path that resolves to same destination
[INFO] [stdout]     |
[INFO] [stdout]     = note: when a link's destination is not specified,
[INFO] [stdout]             the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]     |
[INFO] [stdout] 221 |     /// The returned value of the closure must implement the [`TryFuture`] trait
[INFO] [stdout]     |                                                              ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]    --> src/try_stream/mod.rs:320:44
[INFO] [stdout]     |
[INFO] [stdout] 320 |     /// The returned value is a [`Future`](futures_core::Future) where the
[INFO] [stdout]     |                                  --------  ^^^^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  because label contains path that resolves to same destination
[INFO] [stdout]     |
[INFO] [stdout]     = note: when a link's destination is not specified,
[INFO] [stdout]             the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]     |
[INFO] [stdout] 320 |     /// The returned value is a [`Future`] where the
[INFO] [stdout]     |                                 ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]    --> src/try_stream/mod.rs:643:66
[INFO] [stdout]     |
[INFO] [stdout] 643 |     /// Works with all collections that implement the [`Extend`](std::iter::Extend) trait.
[INFO] [stdout]     |                                                        --------  ^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]     |                                                        |
[INFO] [stdout]     |                                                        because label contains path that resolves to same destination
[INFO] [stdout]     |
[INFO] [stdout]     = note: when a link's destination is not specified,
[INFO] [stdout]             the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]     |
[INFO] [stdout] 643 |     /// Works with all collections that implement the [`Extend`] trait.
[INFO] [stdout]     |                                                       ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]    --> src/try_stream/mod.rs:680:57
[INFO] [stdout]     |
[INFO] [stdout] 680 |     /// This stream's `Ok` type must be a [`TryFuture`](futures_core::future::TryFuture) with an `Error` type
[INFO] [stdout]     |                                            -----------  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            because label contains path that resolves to same destination
[INFO] [stdout]     |
[INFO] [stdout]     = note: when a link's destination is not specified,
[INFO] [stdout]             the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]     |
[INFO] [stdout] 680 |     /// This stream's `Ok` type must be a [`TryFuture`] with an `Error` type
[INFO] [stdout]     |                                           ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/futures_util/index.html
[INFO] running `Command { std: "docker" "inspect" "dd7c5d244142c68457fa453bfd00351b9822e3c0bc493e466a0ec6f3ddeae10d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7c5d244142c68457fa453bfd00351b9822e3c0bc493e466a0ec6f3ddeae10d", kill_on_drop: false }`
[INFO] [stdout] dd7c5d244142c68457fa453bfd00351b9822e3c0bc493e466a0ec6f3ddeae10d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "+1.75.0" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d258a2011bf7a5f3bdf361c64de9c68b0db43eda0e2ad5b4db7f3cfab031dce3
[INFO] running `Command { std: "docker" "start" "-a" "d258a2011bf7a5f3bdf361c64de9c68b0db43eda0e2ad5b4db7f3cfab031dce3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stdout] error[E0432]: unresolved import `io::Initializer`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-io-preview-0.3.0-alpha.19/src/lib.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub use io::Initializer as Initializer;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `Initializer` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `read_initializer`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-io-preview-0.3.0-alpha.19/src/lib.rs:11:51
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![cfg_attr(feature = "read_initializer", feature(read_initializer))]
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stdout] error[E0432]: unresolved import `futures_core::task::__internal::AtomicWaker`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-channel-preview-0.3.0-alpha.19/src/mpsc/mod.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 | use futures_core::task::__internal::AtomicWaker;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `AtomicWaker` in `task::__internal`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-core-preview-0.3.0-alpha.19/src/task/__internal/mod.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use self::atomic_waker::AtomicWaker;
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `initializer` exists for trait object `dyn Read`, but its trait bounds were not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-io-preview-0.3.0-alpha.19/src/lib.rs:368:27
[INFO] [stdout]     |
[INFO] [stdout] 368 |                 io::Read::initializer(self)
[INFO] [stdout]     |                           ^^^^^^^^^^^ function or associated item cannot be called on `dyn Read` due to unsatisfied trait bounds
[INFO] [stdout] ...
[INFO] [stdout] 386 |         delegate_async_read_to_stdio!();
[INFO] [stdout]     |         ------------------------------- in this macro invocation
[INFO] [stdout]    --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:613:1
[INFO] [stdout]     |
[INFO] [stdout]     = note: doesn't satisfy `dyn std::io::Read: AsyncRead`
[INFO] [stdout]     |
[INFO] [stdout]     = note: doesn't satisfy `dyn std::io::Read: Unpin`
[INFO] [stdout]     |
[INFO] [stdout] note: the following trait bounds were not satisfied:
[INFO] [stdout]       `dyn std::io::Read: AsyncRead`
[INFO] [stdout]       `dyn std::io::Read: Unpin`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-io-preview-0.3.0-alpha.19/src/lib.rs:337:22
[INFO] [stdout]     |
[INFO] [stdout] 337 |     impl<T: ?Sized + AsyncRead + Unpin> AsyncRead for &mut T {
[INFO] [stdout]     |                      ^^^^^^^^^   ^^^^^  ---------     ------
[INFO] [stdout]     |                      |           |
[INFO] [stdout]     |                      |           unsatisfied trait bound introduced here
[INFO] [stdout]     |                      unsatisfied trait bound introduced here
[INFO] [stdout]     = note: this error originates in the macro `delegate_async_read_to_stdio` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `initializer` exists for trait object `dyn Read`, but its trait bounds were not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-io-preview-0.3.0-alpha.19/src/lib.rs:368:27
[INFO] [stdout]     |
[INFO] [stdout] 368 |                 io::Read::initializer(self)
[INFO] [stdout]     |                           ^^^^^^^^^^^ function or associated item cannot be called on `dyn Read` due to unsatisfied trait bounds
[INFO] [stdout] ...
[INFO] [stdout] 390 |         delegate_async_read_to_stdio!();
[INFO] [stdout]     |         ------------------------------- in this macro invocation
[INFO] [stdout]    --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:613:1
[INFO] [stdout]     |
[INFO] [stdout]     = note: doesn't satisfy `dyn std::io::Read: AsyncRead`
[INFO] [stdout]     |
[INFO] [stdout]     = note: doesn't satisfy `dyn std::io::Read: Unpin`
[INFO] [stdout]     |
[INFO] [stdout] note: the following trait bounds were not satisfied:
[INFO] [stdout]       `dyn std::io::Read: AsyncRead`
[INFO] [stdout]       `dyn std::io::Read: Unpin`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-io-preview-0.3.0-alpha.19/src/lib.rs:337:22
[INFO] [stdout]     |
[INFO] [stdout] 337 |     impl<T: ?Sized + AsyncRead + Unpin> AsyncRead for &mut T {
[INFO] [stdout]     |                      ^^^^^^^^^   ^^^^^  ---------     ------
[INFO] [stdout]     |                      |           |
[INFO] [stdout]     |                      |           unsatisfied trait bound introduced here
[INFO] [stdout]     |                      unsatisfied trait bound introduced here
[INFO] [stdout]     = note: this error originates in the macro `delegate_async_read_to_stdio` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-io-preview` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel-preview` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d258a2011bf7a5f3bdf361c64de9c68b0db43eda0e2ad5b4db7f3cfab031dce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d258a2011bf7a5f3bdf361c64de9c68b0db43eda0e2ad5b4db7f3cfab031dce3", kill_on_drop: false }`
[INFO] [stdout] d258a2011bf7a5f3bdf361c64de9c68b0db43eda0e2ad5b4db7f3cfab031dce3
[INFO] documenting futures-util-preview-0.3.0-alpha.19 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate futures-util-preview 0.3.0-alpha.19 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate futures-util-preview 0.3.0-alpha.19 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-util-preview 0.3.0-alpha.19
[INFO] finished tweaking crates.io crate futures-util-preview 0.3.0-alpha.19
[INFO] tweaked toml for crates.io crate futures-util-preview 0.3.0-alpha.19 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f09614827f5051b73df95789ac4bbaeb12eb15684548745049caea7a283d66b
[INFO] running `Command { std: "docker" "start" "-a" "1f09614827f5051b73df95789ac4bbaeb12eb15684548745049caea7a283d66b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f09614827f5051b73df95789ac4bbaeb12eb15684548745049caea7a283d66b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f09614827f5051b73df95789ac4bbaeb12eb15684548745049caea7a283d66b", kill_on_drop: false }`
[INFO] [stdout] 1f09614827f5051b73df95789ac4bbaeb12eb15684548745049caea7a283d66b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e6767b0e9bb5a570ec8818ba1970790c282d66eace8dc4140553dbdf3a55e02
[INFO] running `Command { std: "docker" "start" "-a" "2e6767b0e9bb5a570ec8818ba1970790c282d66eace8dc4140553dbdf3a55e02", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]  Documenting futures-util-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `select`
[INFO] [stdout]    --> src/try_future/mod.rs:173:17
[INFO] [stdout]     |
[INFO] [stdout] 173 |     /// using [`select!`] or [`join!`].
[INFO] [stdout]     |                 ^^^^^^^ no item named `select` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout]     = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `join`
[INFO] [stdout]    --> src/try_future/mod.rs:173:32
[INFO] [stdout]     |
[INFO] [stdout] 173 |     /// using [`select!`] or [`join!`].
[INFO] [stdout]     |                                ^^^^^ no item named `join` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `select`
[INFO] [stdout]    --> src/try_future/mod.rs:220:27
[INFO] [stdout]     |
[INFO] [stdout] 220 |     /// type when using [`select!`] or [`join!`].
[INFO] [stdout]     |                           ^^^^^^^ no item named `select` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `join`
[INFO] [stdout]    --> src/try_future/mod.rs:220:42
[INFO] [stdout]     |
[INFO] [stdout] 220 |     /// type when using [`select!`] or [`join!`].
[INFO] [stdout]     |                                          ^^^^^ no item named `join` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `select`
[INFO] [stdout]     --> src/stream/mod.rs:1154:15
[INFO] [stdout]      |
[INFO] [stdout] 1154 |     /// the [`select!`] macro.
[INFO] [stdout]      |               ^^^^^^^ this link resolves to the module `select`, which is not in the macro namespace
[INFO] [stdout]      |
[INFO] [stdout] help: to link to the module, prefix with `mod@`
[INFO] [stdout]      |
[INFO] [stdout] 1154 -     /// the [`select!`] macro.
[INFO] [stdout] 1154 +     /// the [`mod@select`] macro.
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `select`
[INFO] [stdout]     --> src/stream/mod.rs:1158:11
[INFO] [stdout]      |
[INFO] [stdout] 1158 |     /// [`select!`] macro will prevent this.
[INFO] [stdout]      |           ^^^^^^^ this link resolves to the module `select`, which is not in the macro namespace
[INFO] [stdout]      |
[INFO] [stdout] help: to link to the module, prefix with `mod@`
[INFO] [stdout]      |
[INFO] [stdout] 1158 -     /// [`select!`] macro will prevent this.
[INFO] [stdout] 1158 +     /// [`mod@select`] macro will prevent this.
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `SpawnExt::spawn_with_handle`
[INFO] [stdout]   --> src/task/spawn.rs:26:43
[INFO] [stdout]    |
[INFO] [stdout] 26 |     /// You can use [`spawn_with_handle`](SpawnExt::spawn_with_handle) if
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `SpawnExt` has no associated item named `spawn_with_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `SpawnExt::spawn_with_handle`
[INFO] [stdout]    --> src/task/spawn.rs:103:43
[INFO] [stdout]     |
[INFO] [stdout] 103 |     /// You can use [`spawn_with_handle`](SpawnExt::spawn_with_handle) if
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `SpawnExt` has no associated item named `spawn_with_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]   --> src/future/option.rs:10:59
[INFO] [stdout]    |
[INFO] [stdout] 10 | /// Created by the [`From`] implementation for [`Option`](std::option::Option).
[INFO] [stdout]    |                                                 --------  ^^^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]    |                                                 |
[INFO] [stdout]    |                                                 because label contains path that resolves to same destination
[INFO] [stdout]    |
[INFO] [stdout]    = note: when a link's destination is not specified,
[INFO] [stdout]            the label is used to resolve intra-doc links
[INFO] [stdout]    = note: `#[warn(rustdoc::redundant_explicit_links)]` on by default
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]    |
[INFO] [stdout] 10 | /// Created by the [`From`] implementation for [`Option`].
[INFO] [stdout]    |                                                ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]    --> src/try_future/mod.rs:214:28
[INFO] [stdout]     |
[INFO] [stdout] 214 |     /// using the [`Into`](std::convert::Into) trait.
[INFO] [stdout]     |                    ------  ^^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    because label contains path that resolves to same destination
[INFO] [stdout]     |
[INFO] [stdout]     = note: when a link's destination is not specified,
[INFO] [stdout]             the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]     |
[INFO] [stdout] 214 |     /// using the [`Into`] trait.
[INFO] [stdout]     |                   ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]    --> src/stream/mod.rs:445:20
[INFO] [stdout]     |
[INFO] [stdout] 445 |     /// [`Extend`](std::iter::Extend) trait.
[INFO] [stdout]     |          --------  ^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]     |          |
[INFO] [stdout]     |          because label contains path that resolves to same destination
[INFO] [stdout]     |
[INFO] [stdout]     = note: when a link's destination is not specified,
[INFO] [stdout]             the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]     |
[INFO] [stdout] 445 |     /// [`Extend`] trait.
[INFO] [stdout]     |         ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]    --> src/try_stream/mod.rs:221:76
[INFO] [stdout]     |
[INFO] [stdout] 221 |     /// The returned value of the closure must implement the [`TryFuture`](futures_core::future::TryFuture) trait
[INFO] [stdout]     |                                                               -----------  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]     |                                                               |
[INFO] [stdout]     |                                                               because label contains path that resolves to same destination
[INFO] [stdout]     |
[INFO] [stdout]     = note: when a link's destination is not specified,
[INFO] [stdout]             the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]     |
[INFO] [stdout] 221 |     /// The returned value of the closure must implement the [`TryFuture`] trait
[INFO] [stdout]     |                                                              ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]    --> src/try_stream/mod.rs:320:44
[INFO] [stdout]     |
[INFO] [stdout] 320 |     /// The returned value is a [`Future`](futures_core::Future) where the
[INFO] [stdout]     |                                  --------  ^^^^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  because label contains path that resolves to same destination
[INFO] [stdout]     |
[INFO] [stdout]     = note: when a link's destination is not specified,
[INFO] [stdout]             the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]     |
[INFO] [stdout] 320 |     /// The returned value is a [`Future`] where the
[INFO] [stdout]     |                                 ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]    --> src/try_stream/mod.rs:643:66
[INFO] [stdout]     |
[INFO] [stdout] 643 |     /// Works with all collections that implement the [`Extend`](std::iter::Extend) trait.
[INFO] [stdout]     |                                                        --------  ^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]     |                                                        |
[INFO] [stdout]     |                                                        because label contains path that resolves to same destination
[INFO] [stdout]     |
[INFO] [stdout]     = note: when a link's destination is not specified,
[INFO] [stdout]             the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]     |
[INFO] [stdout] 643 |     /// Works with all collections that implement the [`Extend`] trait.
[INFO] [stdout]     |                                                       ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]    --> src/try_stream/mod.rs:680:57
[INFO] [stdout]     |
[INFO] [stdout] 680 |     /// This stream's `Ok` type must be a [`TryFuture`](futures_core::future::TryFuture) with an `Error` type
[INFO] [stdout]     |                                            -----------  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            because label contains path that resolves to same destination
[INFO] [stdout]     |
[INFO] [stdout]     = note: when a link's destination is not specified,
[INFO] [stdout]             the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]     |
[INFO] [stdout] 680 |     /// This stream's `Ok` type must be a [`TryFuture`] with an `Error` type
[INFO] [stdout]     |                                           ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/futures_util/index.html
[INFO] running `Command { std: "docker" "inspect" "2e6767b0e9bb5a570ec8818ba1970790c282d66eace8dc4140553dbdf3a55e02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e6767b0e9bb5a570ec8818ba1970790c282d66eace8dc4140553dbdf3a55e02", kill_on_drop: false }`
[INFO] [stdout] 2e6767b0e9bb5a570ec8818ba1970790c282d66eace8dc4140553dbdf3a55e02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "+beta-2023-12-22" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 305133e190184eddb70a437b2dda2de5821a99fcd58f217009c5c1969a5c2ad6
[INFO] running `Command { std: "docker" "start" "-a" "305133e190184eddb70a437b2dda2de5821a99fcd58f217009c5c1969a5c2ad6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stdout] error[E0432]: unresolved import `io::Initializer`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-io-preview-0.3.0-alpha.19/src/lib.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub use io::Initializer as Initializer;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `Initializer` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `read_initializer`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-io-preview-0.3.0-alpha.19/src/lib.rs:11:51
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![cfg_attr(feature = "read_initializer", feature(read_initializer))]
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stdout] error[E0599]: the function or associated item `initializer` exists for trait object `dyn Read`, but its trait bounds were not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-io-preview-0.3.0-alpha.19/src/lib.rs:368:27
[INFO] [stdout]     |
[INFO] [stdout] 368 |                 io::Read::initializer(self)
[INFO] [stdout]     |                           ^^^^^^^^^^^ function or associated item cannot be called on `dyn Read` due to unsatisfied trait bounds
[INFO] [stdout] ...
[INFO] [stdout] 386 |         delegate_async_read_to_stdio!();
[INFO] [stdout]     |         ------------------------------- in this macro invocation
[INFO] [stdout]    --> /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/io/mod.rs:661:1
[INFO] [stdout]     |
[INFO] [stdout]     = note: doesn't satisfy `dyn std::io::Read: AsyncRead`
[INFO] [stdout]     |
[INFO] [stdout]     = note: doesn't satisfy `dyn std::io::Read: Unpin`
[INFO] [stdout]     |
[INFO] [stdout] note: the following trait bounds were not satisfied:
[INFO] [stdout]       `dyn std::io::Read: AsyncRead`
[INFO] [stdout]       `dyn std::io::Read: Unpin`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-io-preview-0.3.0-alpha.19/src/lib.rs:337:22
[INFO] [stdout]     |
[INFO] [stdout] 337 |     impl<T: ?Sized + AsyncRead + Unpin> AsyncRead for &mut T {
[INFO] [stdout]     |                      ^^^^^^^^^   ^^^^^  ---------     ------
[INFO] [stdout]     |                      |           |
[INFO] [stdout]     |                      |           unsatisfied trait bound introduced here
[INFO] [stdout]     |                      unsatisfied trait bound introduced here
[INFO] [stdout]     = note: this error originates in the macro `delegate_async_read_to_stdio` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `initializer` exists for trait object `dyn Read`, but its trait bounds were not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-io-preview-0.3.0-alpha.19/src/lib.rs:368:27
[INFO] [stdout]     |
[INFO] [stdout] 368 |                 io::Read::initializer(self)
[INFO] [stdout]     |                           ^^^^^^^^^^^ function or associated item cannot be called on `dyn Read` due to unsatisfied trait bounds
[INFO] [stdout] ...
[INFO] [stdout] 390 |         delegate_async_read_to_stdio!();
[INFO] [stdout]     |         ------------------------------- in this macro invocation
[INFO] [stdout]    --> /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/io/mod.rs:661:1
[INFO] [stdout]     |
[INFO] [stdout]     = note: doesn't satisfy `dyn std::io::Read: AsyncRead`
[INFO] [stdout]     |
[INFO] [stdout]     = note: doesn't satisfy `dyn std::io::Read: Unpin`
[INFO] [stdout]     |
[INFO] [stdout] note: the following trait bounds were not satisfied:
[INFO] [stdout]       `dyn std::io::Read: AsyncRead`
[INFO] [stdout]       `dyn std::io::Read: Unpin`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-io-preview-0.3.0-alpha.19/src/lib.rs:337:22
[INFO] [stdout]     |
[INFO] [stdout] 337 |     impl<T: ?Sized + AsyncRead + Unpin> AsyncRead for &mut T {
[INFO] [stdout]     |                      ^^^^^^^^^   ^^^^^  ---------     ------
[INFO] [stdout]     |                      |           |
[INFO] [stdout]     |                      |           unsatisfied trait bound introduced here
[INFO] [stdout]     |                      unsatisfied trait bound introduced here
[INFO] [stdout]     = note: this error originates in the macro `delegate_async_read_to_stdio` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-io-preview` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0432]: unresolved import `futures_core::task::__internal::AtomicWaker`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-channel-preview-0.3.0-alpha.19/src/mpsc/mod.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 | use futures_core::task::__internal::AtomicWaker;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `AtomicWaker` in `task::__internal`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-core-preview-0.3.0-alpha.19/src/task/__internal/mod.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use self::atomic_waker::AtomicWaker;
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel-preview` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "305133e190184eddb70a437b2dda2de5821a99fcd58f217009c5c1969a5c2ad6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "305133e190184eddb70a437b2dda2de5821a99fcd58f217009c5c1969a5c2ad6", kill_on_drop: false }`
[INFO] [stdout] 305133e190184eddb70a437b2dda2de5821a99fcd58f217009c5c1969a5c2ad6
