[INFO] cloning repository https://github.com/IsseW/aoc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/IsseW/aoc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIsseW%2Faoc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIsseW%2Faoc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14e54b5b25ec600429f14e311bb3a3dc857d1a0d
[INFO] documenting IsseW/aoc 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%2FIsseW%2Faoc" "/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/IsseW/aoc 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 git repo https://github.com/IsseW/aoc
[INFO] finished tweaking git repo https://github.com/IsseW/aoc
[INFO] tweaked toml for git repo https://github.com/IsseW/aoc written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate git repo https://github.com/IsseW/aoc 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] [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-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] bade68389c27054c2017d3e28de7f0b8274fbafbf8e63807d96aa87bf52f3bec
[INFO] running `Command { std: "docker" "start" "-a" "bade68389c27054c2017d3e28de7f0b8274fbafbf8e63807d96aa87bf52f3bec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bade68389c27054c2017d3e28de7f0b8274fbafbf8e63807d96aa87bf52f3bec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bade68389c27054c2017d3e28de7f0b8274fbafbf8e63807d96aa87bf52f3bec", kill_on_drop: false }`
[INFO] [stdout] bade68389c27054c2017d3e28de7f0b8274fbafbf8e63807d96aa87bf52f3bec
[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] acc84fb912d9251eff528cb794fa920a77c925acbeedc7eb12764c6b96ff970f
[INFO] running `Command { std: "docker" "start" "-a" "acc84fb912d9251eff528cb794fa920a77c925acbeedc7eb12764c6b96ff970f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking ppv-lite86 v0.2.14
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling seq-macro v0.2.2
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling ahash v0.7.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking integer-sqrt v0.1.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]  Documenting aoc 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(iter_advance_by)]
[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:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[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 `aoc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name aoc 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=7c5c458beb06af85 -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-104b317c75d6f6d1.rmeta --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-ddaad53889660e3c.rmeta --extern integer_sqrt=/opt/rustwide/target/debug/deps/libinteger_sqrt-3efa5dec80a8cabd.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-5dfc9fd0ade52842.rmeta --extern md5=/opt/rustwide/target/debug/deps/libmd5-344a5d5e6a154a87.rmeta --extern num_derive=/opt/rustwide/target/debug/deps/libnum_derive-74882076bde7e78d.so --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-3df10c177a58f20e.rmeta --extern paste=/opt/rustwide/target/debug/deps/libpaste-03d21a98958e81f6.so --extern rand=/opt/rustwide/target/debug/deps/librand-b269dc42c092bdb2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-81cd94013928d772.rmeta --extern seq_macro=/opt/rustwide/target/debug/deps/libseq_macro-1ec181ca5dd8cae4.so --extern serde=/opt/rustwide/target/debug/deps/libserde-46e524e39da3e007.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-5c4fb9e57167d8cf.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "acc84fb912d9251eff528cb794fa920a77c925acbeedc7eb12764c6b96ff970f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acc84fb912d9251eff528cb794fa920a77c925acbeedc7eb12764c6b96ff970f", kill_on_drop: false }`
[INFO] [stdout] acc84fb912d9251eff528cb794fa920a77c925acbeedc7eb12764c6b96ff970f