[INFO] fetching crate libwifi 0.3.0...
[INFO] documenting libwifi-0.3.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate libwifi 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libwifi 0.3.0 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libwifi 0.3.0
[INFO] finished tweaking crates.io crate libwifi 0.3.0
[INFO] tweaked toml for crates.io crate libwifi 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3645b4790237220876e97ca82dcc960d14033d6934deef4bad4fd7a6489eb432
[INFO] running `Command { std: "docker" "start" "-a" "3645b4790237220876e97ca82dcc960d14033d6934deef4bad4fd7a6489eb432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3645b4790237220876e97ca82dcc960d14033d6934deef4bad4fd7a6489eb432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3645b4790237220876e97ca82dcc960d14033d6934deef4bad4fd7a6489eb432", kill_on_drop: false }`
[INFO] [stdout] 3645b4790237220876e97ca82dcc960d14033d6934deef4bad4fd7a6489eb432
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64e8a210344498bebe099e3346bcabd8f00f12af8bcd65ba6df6fcd4fefd270d
[INFO] running `Command { std: "docker" "start" "-a" "64e8a210344498bebe099e3346bcabd8f00f12af8bcd65ba6df6fcd4fefd270d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking bitvec v0.19.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling libwifi_macros v0.0.1
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]  Documenting libwifi v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(destructuring_assignment)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `destructuring_assignment` has been stable since 1.59.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `libwifi`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name libwifi src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=c67a2c48eae20457 -L dependency=/opt/rustwide/target/debug/deps --extern libwifi_macros=/opt/rustwide/target/debug/deps/liblibwifi_macros-b06d424995e6578c.so --extern log=/opt/rustwide/target/debug/deps/liblog-0b61054b794719d9.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-bfd8760c9cdf88d2.rmeta --extern strum_macros=/opt/rustwide/target/debug/deps/libstrum_macros-df9d59f190143ac0.so --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-f4da9f3c49310704.rmeta --cap-lints=warn --crate-version 0.3.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "64e8a210344498bebe099e3346bcabd8f00f12af8bcd65ba6df6fcd4fefd270d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64e8a210344498bebe099e3346bcabd8f00f12af8bcd65ba6df6fcd4fefd270d", kill_on_drop: false }`
[INFO] [stdout] 64e8a210344498bebe099e3346bcabd8f00f12af8bcd65ba6df6fcd4fefd270d