[INFO] cloning repository https://github.com/deinferno/iwled-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deinferno/iwled-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeinferno%2Fiwled-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeinferno%2Fiwled-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 589d1e899a0b4b493322c123ed11a6ba7fd77234
[INFO] documenting deinferno/iwled-rs against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeinferno%2Fiwled-rs" "/workspace/builds/worker-39/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-39/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/deinferno/iwled-rs 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] removed /workspace/builds/worker-39/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/deinferno/iwled-rs
[INFO] finished tweaking git repo https://github.com/deinferno/iwled-rs
[INFO] tweaked toml for git repo https://github.com/deinferno/iwled-rs written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate git repo https://github.com/deinferno/iwled-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] bb7f6c337a90da2d2208c22ec21a941112768984dc98f18d234b7818ccd29bdf
[INFO] running `Command { std: "docker" "start" "-a" "bb7f6c337a90da2d2208c22ec21a941112768984dc98f18d234b7818ccd29bdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb7f6c337a90da2d2208c22ec21a941112768984dc98f18d234b7818ccd29bdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb7f6c337a90da2d2208c22ec21a941112768984dc98f18d234b7818ccd29bdf", kill_on_drop: false }`
[INFO] [stdout] bb7f6c337a90da2d2208c22ec21a941112768984dc98f18d234b7818ccd29bdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 45277b811b9823357190454b2552ddd4e58200d9e9d0924786c23a7930257f7a
[INFO] running `Command { std: "docker" "start" "-a" "45277b811b9823357190454b2552ddd4e58200d9e9d0924786c23a7930257f7a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking buffering v0.4.2
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]     Checking numtoa v0.2.4
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking sysfs-class v0.1.3
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking neli v0.4.4
[INFO] [stderr]     Checking neli v0.5.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking nl80211 v0.0.2 (https://github.com/deinferno/nl80211.git?branch=master#c4caba12)
[INFO] [stderr]     Checking dlv-list v0.2.2
[INFO] [stderr]     Checking ordered-multimap v0.3.1
[INFO] [stderr]     Checking rust-ini v0.17.0
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]  Documenting iwled-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(clamp)]
[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 `iwled-rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name iwled_rs 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=8e385302235aa63f -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-0d0b487ab93efe0a.rmeta --extern derive_new=/opt/rustwide/target/debug/deps/libderive_new-eb5e831875a2883c.so --extern neli=/opt/rustwide/target/debug/deps/libneli-3bbf0f2a024c9bf2.rmeta --extern nl80211=/opt/rustwide/target/debug/deps/libnl80211-51116fdf6aa153e8.rmeta --extern numtoa=/opt/rustwide/target/debug/deps/libnumtoa-e465a9d6394b2c63.rmeta --extern ini=/opt/rustwide/target/debug/deps/libini-d23ed5cae612c847.rmeta --extern sysfs_class=/opt/rustwide/target/debug/deps/libsysfs_class-374e2816d2160459.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "45277b811b9823357190454b2552ddd4e58200d9e9d0924786c23a7930257f7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45277b811b9823357190454b2552ddd4e58200d9e9d0924786c23a7930257f7a", kill_on_drop: false }`
[INFO] [stdout] 45277b811b9823357190454b2552ddd4e58200d9e9d0924786c23a7930257f7a