[INFO] fetching crate embedded-io 0.4.0...
[INFO] documenting embedded-io-0.4.0 against 1.66.0 for beta-1.67-rustdoc-3
[INFO] extracting crate embedded-io 0.4.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate embedded-io 0.4.0 on toolchain 1.66.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.66.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate embedded-io 0.4.0
[INFO] finished tweaking crates.io crate embedded-io 0.4.0
[INFO] tweaked toml for crates.io crate embedded-io 0.4.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.66.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.66.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:9042d5c95763f71f7b0904716b98ccadf9fc47b0f382ee962aaaed2ac70c9b8d" "/opt/rustwide/cargo-home/bin/cargo" "+1.66.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70488713443e9cb7c5511f94290eb726661b902e7eb7663fd7d10c97812ef3ca
[INFO] running `Command { std: "docker" "start" "-a" "70488713443e9cb7c5511f94290eb726661b902e7eb7663fd7d10c97812ef3ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70488713443e9cb7c5511f94290eb726661b902e7eb7663fd7d10c97812ef3ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70488713443e9cb7c5511f94290eb726661b902e7eb7663fd7d10c97812ef3ca", kill_on_drop: false }`
[INFO] [stdout] 70488713443e9cb7c5511f94290eb726661b902e7eb7663fd7d10c97812ef3ca
[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@sha256:9042d5c95763f71f7b0904716b98ccadf9fc47b0f382ee962aaaed2ac70c9b8d" "/opt/rustwide/cargo-home/bin/cargo" "+1.66.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ca630ff0759e262bef93ed1f03e83e6685677e534c038acffadfa754b7c0c1d
[INFO] running `Command { std: "docker" "start" "-a" "0ca630ff0759e262bef93ed1f03e83e6685677e534c038acffadfa754b7c0c1d", kill_on_drop: false }`
[INFO] [stderr]  Documenting embedded-io v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `std::io::Read`
[INFO] [stdout]   --> src/blocking.rs:45:33
[INFO] [stdout]    |
[INFO] [stdout] 45 | /// Semantics are the same as [`std::io::Read`], check its documentation for details.
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^ no item named `std` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `std::io::BufRead`
[INFO] [stdout]   --> src/blocking.rs:69:33
[INFO] [stdout]    |
[INFO] [stdout] 69 | /// Semantics are the same as [`std::io::BufRead`], check its documentation for details.
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^ no item named `std` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `std::io::Write`
[INFO] [stdout]   --> src/blocking.rs:80:33
[INFO] [stdout]    |
[INFO] [stdout] 80 | /// Semantics are the same as [`std::io::Write`], check its documentation for details.
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^ no item named `std` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `std::io::Seek`
[INFO] [stdout]    --> src/blocking.rs:138:33
[INFO] [stdout]     |
[INFO] [stdout] 138 | /// Semantics are the same as [`std::io::Seek`], check its documentation for details.
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^ no item named `std` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `std::io::SeekFrom`
[INFO] [stdout]   --> src/lib.rs:53:33
[INFO] [stdout]    |
[INFO] [stdout] 53 | /// Semantics are the same as [`std::io::SeekFrom`], check its documentation for details.
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^ no item named `std` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "0ca630ff0759e262bef93ed1f03e83e6685677e534c038acffadfa754b7c0c1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ca630ff0759e262bef93ed1f03e83e6685677e534c038acffadfa754b7c0c1d", kill_on_drop: false }`
[INFO] [stdout] 0ca630ff0759e262bef93ed1f03e83e6685677e534c038acffadfa754b7c0c1d
[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@sha256:9042d5c95763f71f7b0904716b98ccadf9fc47b0f382ee962aaaed2ac70c9b8d" "/opt/rustwide/cargo-home/bin/cargo" "+1.66.0" "rustdoc" "--lib" "-Zrustdoc-map" "--features" "std async defmt futures tokio" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 827adc506094a026cbfcc57f7f46e2f541f165302785240203e49fd88489604f
[INFO] running `Command { std: "docker" "start" "-a" "827adc506094a026cbfcc57f7f46e2f541f165302785240203e49fd88489604f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]    Compiling defmt-macros v0.3.3
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling defmt v0.3.2
[INFO] [stderr]    Compiling defmt-parser v0.3.1
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking futures v0.3.25
[INFO] [stderr]  Documenting embedded-io v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: method not compatible with trait
[INFO] [stdout]   --> src/asynch.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     async fn read(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetime mismatch
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(&mut &mut T, &mut [u8]) -> impl futures::Future<Output = std::result::Result<usize, <&'static mut T as Io>::Error>>`
[INFO] [stdout]               found fn pointer `fn(&mut &mut T, &mut [u8]) -> impl futures::Future<Output = std::result::Result<usize, <&'static mut T as Io>::Error>>`
[INFO] [stdout] note: the anonymous lifetime as defined here...
[INFO] [stdout]   --> src/asynch.rs:84:33
[INFO] [stdout]    |
[INFO] [stdout] 84 | impl<T: ?Sized + Read> Read for &mut T {
[INFO] [stdout]    |                                 ^
[INFO] [stdout]    = note: ...does not necessarily outlive the static lifetime
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: method not compatible with trait
[INFO] [stdout]   --> src/asynch.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     async fn fill_buf(&mut self) -> Result<&[u8], Self::Error> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetime mismatch
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(&mut &mut T) -> impl futures::Future<Output = std::result::Result<&[u8], <&'static mut T as Io>::Error>>`
[INFO] [stdout]               found fn pointer `fn(&mut &mut T) -> impl futures::Future<Output = std::result::Result<&[u8], <&'static mut T as Io>::Error>>`
[INFO] [stdout] note: the anonymous lifetime as defined here...
[INFO] [stdout]   --> src/asynch.rs:91:39
[INFO] [stdout]    |
[INFO] [stdout] 91 | impl<T: ?Sized + BufRead> BufRead for &mut T {
[INFO] [stdout]    |                                       ^
[INFO] [stdout]    = note: ...does not necessarily outlive the static lifetime
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: method not compatible with trait
[INFO] [stdout]    --> src/asynch.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     async fn write(&mut self, buf: &[u8]) -> Result<usize, Self::Error> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetime mismatch
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `fn(&mut &mut T, &[u8]) -> impl futures::Future<Output = std::result::Result<usize, <&'static mut T as Io>::Error>>`
[INFO] [stdout]                found fn pointer `fn(&mut &mut T, &[u8]) -> impl futures::Future<Output = std::result::Result<usize, <&'static mut T as Io>::Error>>`
[INFO] [stdout] note: the anonymous lifetime as defined here...
[INFO] [stdout]    --> src/asynch.rs:101:35
[INFO] [stdout]     |
[INFO] [stdout] 101 | impl<T: ?Sized + Write> Write for &mut T {
[INFO] [stdout]     |                                   ^
[INFO] [stdout]     = note: ...does not necessarily outlive the static lifetime
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: method not compatible with trait
[INFO] [stdout]    --> src/asynch.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     async fn flush(&mut self) -> Result<(), Self::Error> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetime mismatch
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `fn(&mut &mut T) -> impl futures::Future<Output = std::result::Result<(), <&'static mut T as Io>::Error>>`
[INFO] [stdout]                found fn pointer `fn(&mut &mut T) -> impl futures::Future<Output = std::result::Result<(), <&'static mut T as Io>::Error>>`
[INFO] [stdout] note: the anonymous lifetime as defined here...
[INFO] [stdout]    --> src/asynch.rs:101:35
[INFO] [stdout]     |
[INFO] [stdout] 101 | impl<T: ?Sized + Write> Write for &mut T {
[INFO] [stdout]     |                                   ^
[INFO] [stdout]     = note: ...does not necessarily outlive the static lifetime
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: method not compatible with trait
[INFO] [stdout]    --> src/asynch.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     async fn seek(&mut self, pos: crate::SeekFrom) -> Result<u64, Self::Error> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetime mismatch
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `fn(&mut &mut T, SeekFrom) -> impl futures::Future<Output = std::result::Result<u64, <&'static mut T as Io>::Error>>`
[INFO] [stdout]                found fn pointer `fn(&mut &mut T, SeekFrom) -> impl futures::Future<Output = std::result::Result<u64, <&'static mut T as Io>::Error>>`
[INFO] [stdout] note: the anonymous lifetime as defined here...
[INFO] [stdout]    --> src/asynch.rs:113:33
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl<T: ?Sized + Seek> Seek for &mut T {
[INFO] [stdout]     |                                 ^
[INFO] [stdout]     = note: ...does not necessarily outlive the static lifetime
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: method not compatible with trait
[INFO] [stdout]    --> src/asynch.rs:126:5
[INFO] [stdout]     |
[INFO] [stdout] 126 |     async fn read(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetime mismatch
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `fn(&mut &[u8], &mut [u8]) -> impl futures::Future<Output = std::result::Result<usize, <&'static [u8] as Io>::Error>>`
[INFO] [stdout]                found fn pointer `fn(&mut &[u8], &mut [u8]) -> impl futures::Future<Output = std::result::Result<usize, <&'static [u8] as Io>::Error>>`
[INFO] [stdout] note: the anonymous lifetime as defined here...
[INFO] [stdout]    --> src/asynch.rs:124:15
[INFO] [stdout]     |
[INFO] [stdout] 124 | impl Read for &[u8] {
[INFO] [stdout]     |               ^
[INFO] [stdout]     = note: ...does not necessarily outlive the static lifetime
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: method not compatible with trait
[INFO] [stdout]    --> src/asynch.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     async fn fill_buf(&mut self) -> Result<&[u8], Self::Error> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetime mismatch
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `fn(&mut &[u8]) -> impl futures::Future<Output = std::result::Result<&[u8], <&'static [u8] as Io>::Error>>`
[INFO] [stdout]                found fn pointer `fn(&mut &[u8]) -> impl futures::Future<Output = std::result::Result<&[u8], <&'static [u8] as Io>::Error>>`
[INFO] [stdout] note: the anonymous lifetime as defined here...
[INFO] [stdout]    --> src/asynch.rs:144:18
[INFO] [stdout]     |
[INFO] [stdout] 144 | impl BufRead for &[u8] {
[INFO] [stdout]     |                  ^
[INFO] [stdout]     = note: ...does not necessarily outlive the static lifetime
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: method not compatible with trait
[INFO] [stdout]    --> src/asynch.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 |     async fn write(&mut self, buf: &[u8]) -> Result<usize, Self::Error> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetime mismatch
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `fn(&mut &mut [u8], &[u8]) -> impl futures::Future<Output = std::result::Result<usize, <&'static mut [u8] as Io>::Error>>`
[INFO] [stdout]                found fn pointer `fn(&mut &mut [u8], &[u8]) -> impl futures::Future<Output = std::result::Result<usize, <&'static mut [u8] as Io>::Error>>`
[INFO] [stdout] note: the anonymous lifetime as defined here...
[INFO] [stdout]    --> src/asynch.rs:165:16
[INFO] [stdout]     |
[INFO] [stdout] 165 | impl Write for &mut [u8] {
[INFO] [stdout]     |                ^
[INFO] [stdout]     = note: ...does not necessarily outlive the static lifetime
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `embedded-io`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name embedded_io src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="alloc"' --cfg 'feature="async"' --cfg 'feature="defmt"' --cfg 'feature="futures"' --cfg 'feature="std"' --cfg 'feature="tokio"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat -C metadata=1f2f312fa3da8f5a -L dependency=/opt/rustwide/target/debug/deps --extern defmt=/opt/rustwide/target/debug/deps/libdefmt-958d85c939f10c44.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-7507c3bf1a1f77eb.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-e9ecc04f66c3d3fd.rmeta --extern-html-root-url 'defmt=https://docs.rs/defmt/0.3.2/' --extern-html-root-url 'futures=https://docs.rs/futures/0.3.25/' --extern-html-root-url 'tokio=https://docs.rs/tokio/1.23.0/' -Zunstable-options --cap-lints=warn --crate-version 0.4.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "827adc506094a026cbfcc57f7f46e2f541f165302785240203e49fd88489604f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "827adc506094a026cbfcc57f7f46e2f541f165302785240203e49fd88489604f", kill_on_drop: false }`
[INFO] [stdout] 827adc506094a026cbfcc57f7f46e2f541f165302785240203e49fd88489604f