[INFO] fetching crate linux-errnos 0.3.4...
[INFO] documenting linux-errnos-0.3.4 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate linux-errnos 0.3.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate linux-errnos 0.3.4 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 linux-errnos 0.3.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate linux-errnos 0.3.4
[INFO] tweaked toml for crates.io crate linux-errnos 0.3.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate linux-errnos 0.3.4 already has a lockfile, it will not be regenerated
[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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded no_std_io v0.6.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77a104da8fb92019c7763685a6a6d7711a60786c73468d3a6179eaf34b7fb9f2
[INFO] running `Command { std: "docker" "start" "-a" "77a104da8fb92019c7763685a6a6d7711a60786c73468d3a6179eaf34b7fb9f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77a104da8fb92019c7763685a6a6d7711a60786c73468d3a6179eaf34b7fb9f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77a104da8fb92019c7763685a6a6d7711a60786c73468d3a6179eaf34b7fb9f2", kill_on_drop: false }`
[INFO] [stdout] 77a104da8fb92019c7763685a6a6d7711a60786c73468d3a6179eaf34b7fb9f2
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/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] dfacf6e90cf316bf8dc06586baa53e3f0abd9d26f46cd2556cc03b253bc70927
[INFO] running `Command { std: "docker" "start" "-a" "dfacf6e90cf316bf8dc06586baa53e3f0abd9d26f46cd2556cc03b253bc70927", kill_on_drop: false }`
[INFO] [stderr]  Documenting linux-errnos v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 use ::no_std_io::io::ErrorKind::*;
[INFO] [stdout]     |                       ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/generic.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 use ::no_std_io::io::ErrorKind::*;
[INFO] [stdout]     |                       ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/alpha.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 use ::no_std_io::io::ErrorKind::*;
[INFO] [stdout]     |                       ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/mips.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 use ::no_std_io::io::ErrorKind::*;
[INFO] [stdout]     |                       ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/parisc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 use ::no_std_io::io::ErrorKind::*;
[INFO] [stdout]     |                       ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/powerpc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 use ::no_std_io::io::ErrorKind::*;
[INFO] [stdout]     |                       ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/sparc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:101:49
[INFO] [stdout]     |
[INFO] [stdout] 101 |         impl ::core::convert::From<Errno> for ::no_std_io::io::Error {
[INFO] [stdout]     |                                                 ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/generic.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]    --> src/linux/generic.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use std::io;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:157:16
[INFO] [stdout]     |
[INFO] [stdout] 157 |         impl ::no_std_io::error::Error for Errno {}
[INFO] [stdout]     |                ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/generic.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    --> src/linux/generic.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use core::error;
[INFO] [stdout]    --> |src/linux/generic.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use std::error;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:101:49
[INFO] [stdout]     |
[INFO] [stdout] 101 |         impl ::core::convert::From<Errno> for ::no_std_io::io::Error {
[INFO] [stdout]     |                                                 ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/alpha.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]    --> src/linux/alpha.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use std::io;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:157:16
[INFO] [stdout]     |
[INFO] [stdout] 157 |         impl ::no_std_io::error::Error for Errno {}
[INFO] [stdout]     |                ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/alpha.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    --> src/linux/alpha.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use core::error;
[INFO] [stdout]    --> |src/linux/alpha.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use std::error;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:101:49
[INFO] [stdout]     |
[INFO] [stdout] 101 |         impl ::core::convert::From<Errno> for ::no_std_io::io::Error {
[INFO] [stdout]     |                                                 ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/mips.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]    --> src/linux/mips.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use std::io;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:157:16
[INFO] [stdout]     |
[INFO] [stdout] 157 |         impl ::no_std_io::error::Error for Errno {}
[INFO] [stdout]     |                ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/mips.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    --> src/linux/mips.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use core::error;
[INFO] [stdout]    --> |src/linux/mips.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use std::error;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:101:49
[INFO] [stdout]     |
[INFO] [stdout] 101 |         impl ::core::convert::From<Errno> for ::no_std_io::io::Error {
[INFO] [stdout]     |                                                 ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/parisc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]    --> src/linux/parisc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use std::io;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:157:16
[INFO] [stdout]     |
[INFO] [stdout] 157 |         impl ::no_std_io::error::Error for Errno {}
[INFO] [stdout]     |                ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/parisc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    --> src/linux/parisc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use core::error;
[INFO] [stdout]    --> |src/linux/parisc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use std::error;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:101:49
[INFO] [stdout]     |
[INFO] [stdout] 101 |         impl ::core::convert::From<Errno> for ::no_std_io::io::Error {
[INFO] [stdout]     |                                                 ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/powerpc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]    --> src/linux/powerpc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use std::io;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:157:16
[INFO] [stdout]     |
[INFO] [stdout] 157 |         impl ::no_std_io::error::Error for Errno {}
[INFO] [stdout]     |                ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/powerpc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    --> src/linux/powerpc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use core::error;
[INFO] [stdout]    --> |src/linux/powerpc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use std::error;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:101:49
[INFO] [stdout]     |
[INFO] [stdout] 101 |         impl ::core::convert::From<Errno> for ::no_std_io::io::Error {
[INFO] [stdout]     |                                                 ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/sparc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]    --> src/linux/sparc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use std::io;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `no_std_io` in the list of imported crates
[INFO] [stdout]    --> src/macros.rs:157:16
[INFO] [stdout]     |
[INFO] [stdout] 157 |         impl ::no_std_io::error::Error for Errno {}
[INFO] [stdout]     |                ^^^^^^^^^ could not find `no_std_io` in the list of imported crates
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/linux/sparc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | crate::macros::def_errno!();
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::macros::def_errno` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    --> src/linux/sparc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use core::error;
[INFO] [stdout]    --> |src/linux/sparc.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   + use std::error;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![cfg_attr(doc, feature(doc_cfg, doc_auto_cfg, doc_cfg_hide))]
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 19 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `linux-errnos`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name linux_errnos src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="std"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4127c5de97445ecb -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.3.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "dfacf6e90cf316bf8dc06586baa53e3f0abd9d26f46cd2556cc03b253bc70927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfacf6e90cf316bf8dc06586baa53e3f0abd9d26f46cd2556cc03b253bc70927", kill_on_drop: false }`
[INFO] [stdout] dfacf6e90cf316bf8dc06586baa53e3f0abd9d26f46cd2556cc03b253bc70927
