[INFO] cloning repository https://github.com/DrStormWalker/comb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DrStormWalker/comb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrStormWalker%2Fcomb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrStormWalker%2Fcomb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a80e6a17b24e1484bcc9f7daef903e33afbc7d6
[INFO] documenting DrStormWalker/comb against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrStormWalker%2Fcomb" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DrStormWalker/comb 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 git repo https://github.com/DrStormWalker/comb
[INFO] finished tweaking git repo https://github.com/DrStormWalker/comb
[INFO] tweaked toml for git repo https://github.com/DrStormWalker/comb written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/DrStormWalker/comb 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 evdev v0.12.1
[INFO] [stderr]   Downloaded ipc-channel v0.16.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a9c831115794b3e601343b9d8b8c80334bb2ce86c80fdf19b19923ffee20a33e
[INFO] running `Command { std: "docker" "start" "-a" "a9c831115794b3e601343b9d8b8c80334bb2ce86c80fdf19b19923ffee20a33e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9c831115794b3e601343b9d8b8c80334bb2ce86c80fdf19b19923ffee20a33e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9c831115794b3e601343b9d8b8c80334bb2ce86c80fdf19b19923ffee20a33e", kill_on_drop: false }`
[INFO] [stdout] a9c831115794b3e601343b9d8b8c80334bb2ce86c80fdf19b19923ffee20a33e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 55f7445d461915d28bdd57b1920993bfbaac31a6cd7f013f9b5bf0f2b81da217
[INFO] running `Command { std: "docker" "start" "-a" "55f7445d461915d28bdd57b1920993bfbaac31a6cd7f013f9b5bf0f2b81da217", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling tokio v1.25.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking nom8 v0.2.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking parking_lot_core v0.9.7
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking inotify v0.9.6
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking filetime v0.2.19
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking net2 v0.2.38
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking nix v0.23.2
[INFO] [stderr]     Checking notify v5.1.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking notify-debouncer-mini v0.2.1
[INFO] [stderr]     Checking xdg v2.4.1
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]     Checking evdev v0.12.1
[INFO] [stderr]     Checking tokio-stream v0.1.12
[INFO] [stderr]     Checking serde_spanned v0.6.1
[INFO] [stderr]     Checking toml_datetime v0.6.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking toml_edit v0.19.1
[INFO] [stderr]     Checking ipc-channel v0.16.0
[INFO] [stderr]     Checking toml v0.7.1
[INFO] [stderr]  Documenting comb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(file_create_new)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(iter_collect_into)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(if_let_guard)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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 `comb`
[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 comb src/main.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="tokio"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=19f68e33ad345036 -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-1f46e78b7d52a21a.rmeta --extern evdev=/opt/rustwide/target/debug/deps/libevdev-9ba4a638327dc84a.rmeta --extern ipc_channel=/opt/rustwide/target/debug/deps/libipc_channel-ca8214ec0f340fa0.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-9ace36d753152539.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-b7613bdcc4db8212.rmeta --extern notify=/opt/rustwide/target/debug/deps/libnotify-1d1732fe770ffad3.rmeta --extern notify_debouncer_mini=/opt/rustwide/target/debug/deps/libnotify_debouncer_mini-aedfc266c3a56ced.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d6ba06a1f7778568.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-2809f54fa8db6d63.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-0cfae55629aa044e.rmeta --extern tokio_stream=/opt/rustwide/target/debug/deps/libtokio_stream-53521d4799adf58c.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-f8ee9bc506ab9cd6.rmeta --extern xdg=/opt/rustwide/target/debug/deps/libxdg-fa7f5cff25f94f6a.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "55f7445d461915d28bdd57b1920993bfbaac31a6cd7f013f9b5bf0f2b81da217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55f7445d461915d28bdd57b1920993bfbaac31a6cd7f013f9b5bf0f2b81da217", kill_on_drop: false }`
[INFO] [stdout] 55f7445d461915d28bdd57b1920993bfbaac31a6cd7f013f9b5bf0f2b81da217
[INFO] documenting DrStormWalker/comb against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrStormWalker%2Fcomb" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DrStormWalker/comb on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DrStormWalker/comb
[INFO] finished tweaking git repo https://github.com/DrStormWalker/comb
[INFO] tweaked toml for git repo https://github.com/DrStormWalker/comb written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/DrStormWalker/comb 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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 395a5b13bbfe4ae0240cf2c04d0006f6b27a6efe9ede80e82eedc0b7f324becf
[INFO] running `Command { std: "docker" "start" "-a" "395a5b13bbfe4ae0240cf2c04d0006f6b27a6efe9ede80e82eedc0b7f324becf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "395a5b13bbfe4ae0240cf2c04d0006f6b27a6efe9ede80e82eedc0b7f324becf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "395a5b13bbfe4ae0240cf2c04d0006f6b27a6efe9ede80e82eedc0b7f324becf", kill_on_drop: false }`
[INFO] [stdout] 395a5b13bbfe4ae0240cf2c04d0006f6b27a6efe9ede80e82eedc0b7f324becf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+beta-2023-12-22" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bffd589ef54208a54dfc30b7f657d5aa96209e32995b26381faf8ae8d954e70
[INFO] running `Command { std: "docker" "start" "-a" "2bffd589ef54208a54dfc30b7f657d5aa96209e32995b26381faf8ae8d954e70", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling tokio v1.25.0
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking nom8 v0.2.0
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking parking_lot_core v0.9.7
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking inotify v0.9.6
[INFO] [stderr]     Checking filetime v0.2.19
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.38
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking notify v5.1.0
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking nix v0.23.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking notify-debouncer-mini v0.2.1
[INFO] [stderr]     Checking xdg v2.4.1
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]     Checking tokio-stream v0.1.12
[INFO] [stderr]     Checking evdev v0.12.1
[INFO] [stderr]     Checking toml_datetime v0.6.1
[INFO] [stderr]     Checking serde_spanned v0.6.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking toml_edit v0.19.1
[INFO] [stderr]     Checking ipc-channel v0.16.0
[INFO] [stderr]     Checking toml v0.7.1
[INFO] [stderr]  Documenting comb 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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(file_create_new)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(iter_collect_into)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(if_let_guard)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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 `comb`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type bin --crate-name comb src/main.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="tokio"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=5487c77f38fb5ad0 -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-64b2d86ae215f28e.rmeta --extern evdev=/opt/rustwide/target/debug/deps/libevdev-43413e901736bdd7.rmeta --extern ipc_channel=/opt/rustwide/target/debug/deps/libipc_channel-730e764e1644097d.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-4750797f4c061514.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-b7de8b35960bdb27.rmeta --extern notify=/opt/rustwide/target/debug/deps/libnotify-560837e1a2a18cc6.rmeta --extern notify_debouncer_mini=/opt/rustwide/target/debug/deps/libnotify_debouncer_mini-be5130b62b9ea972.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-bafb6d9b479f4af7.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-50b07933933d4433.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-74ff7ab1831d039c.rmeta --extern tokio_stream=/opt/rustwide/target/debug/deps/libtokio_stream-cc7e2cf90c119857.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-29a03d6a3845e423.rmeta --extern xdg=/opt/rustwide/target/debug/deps/libxdg-589539370aa9f661.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2bffd589ef54208a54dfc30b7f657d5aa96209e32995b26381faf8ae8d954e70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bffd589ef54208a54dfc30b7f657d5aa96209e32995b26381faf8ae8d954e70", kill_on_drop: false }`
[INFO] [stdout] 2bffd589ef54208a54dfc30b7f657d5aa96209e32995b26381faf8ae8d954e70
