[INFO] fetching crate cloudlog-adifwatch 0.0.18...
[INFO] documenting cloudlog-adifwatch-0.0.18 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate cloudlog-adifwatch 0.0.18 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate cloudlog-adifwatch 0.0.18 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 cloudlog-adifwatch 0.0.18
[INFO] finished tweaking crates.io crate cloudlog-adifwatch 0.0.18
[INFO] tweaked toml for crates.io crate cloudlog-adifwatch 0.0.18 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate cloudlog-adifwatch 0.0.18 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 inotify-sys v0.1.5
[INFO] [stderr]   Downloaded kqueue v1.0.7
[INFO] [stderr]   Downloaded inotify v0.9.6
[INFO] [stderr]   Downloaded unicode-bidi v0.3.10
[INFO] [stderr]   Downloaded fsevent-sys v4.1.0
[INFO] [stderr]   Downloaded kqueue-sys v1.0.3
[INFO] [stderr]   Downloaded notify v5.1.0
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.2
[INFO] [stderr]   Downloaded filetime v0.2.20
[INFO] [stderr]   Downloaded webpki-roots v0.22.6
[INFO] [stderr]   Downloaded serde_json v1.0.93
[INFO] [stderr]   Downloaded ureq v2.6.2
[INFO] [stderr]   Downloaded rustls-native-certs v0.6.2
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f871e4a369b9ecfa4f0ef196acffbe558c402ced9bfd80dfdea4d42dd21dab5
[INFO] running `Command { std: "docker" "start" "-a" "3f871e4a369b9ecfa4f0ef196acffbe558c402ced9bfd80dfdea4d42dd21dab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f871e4a369b9ecfa4f0ef196acffbe558c402ced9bfd80dfdea4d42dd21dab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f871e4a369b9ecfa4f0ef196acffbe558c402ced9bfd80dfdea4d42dd21dab5", kill_on_drop: false }`
[INFO] [stdout] 3f871e4a369b9ecfa4f0ef196acffbe558c402ced9bfd80dfdea4d42dd21dab5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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] 8cf61009324057641e7628312d9ec32467cd6bbbe8dbfc5942c27f646aac2180
[INFO] running `Command { std: "docker" "start" "-a" "8cf61009324057641e7628312d9ec32467cd6bbbe8dbfc5942c27f646aac2180", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking unicode-bidi v0.3.10
[INFO] [stderr]     Checking base64 v0.21.0
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking rustls-pemfile v1.0.2
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]     Checking rustls-native-certs v0.6.2
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking inotify v0.9.6
[INFO] [stderr]     Checking filetime v0.2.20
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking notify v5.1.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki-roots v0.22.6
[INFO] [stderr]     Checking ureq v2.6.2
[INFO] [stderr]  Documenting cloudlog-adifwatch v0.0.18 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:2
[INFO] [stdout]   |
[INFO] [stdout] 2 |     maybe_uninit_slice,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `cloudlog-adifwatch`
[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=2021 --crate-type bin --crate-name cloudlog_adifwatch src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=5da0e6498f9b5251 -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-e7445b4e8703c20b.rmeta --extern notify=/opt/rustwide/target/debug/deps/libnotify-b58202d2e9811698.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-9156b07b8cb6ed02.rmeta --extern ureq=/opt/rustwide/target/debug/deps/libureq-a942a38239a89f8e.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-9321ebbe08ee4915.rmeta --cap-lints=warn --crate-version 0.0.18` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "8cf61009324057641e7628312d9ec32467cd6bbbe8dbfc5942c27f646aac2180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf61009324057641e7628312d9ec32467cd6bbbe8dbfc5942c27f646aac2180", kill_on_drop: false }`
[INFO] [stdout] 8cf61009324057641e7628312d9ec32467cd6bbbe8dbfc5942c27f646aac2180
