[INFO] cloning repository https://github.com/sciyoshi/advent-of-rust-2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sciyoshi/advent-of-rust-2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsciyoshi%2Fadvent-of-rust-2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsciyoshi%2Fadvent-of-rust-2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea84e9ac326c77c294181940c3d62cd0973a02c4
[INFO] documenting sciyoshi/advent-of-rust-2021 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%2Fsciyoshi%2Fadvent-of-rust-2021" "/workspace/builds/worker-36/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-36/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sciyoshi/advent-of-rust-2021 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/sciyoshi/advent-of-rust-2021
[INFO] finished tweaking git repo https://github.com/sciyoshi/advent-of-rust-2021
[INFO] tweaked toml for git repo https://github.com/sciyoshi/advent-of-rust-2021 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate git repo https://github.com/sciyoshi/advent-of-rust-2021 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-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] dd5d25d401d4643b0abfd5d35f1ee9819480c58f668eaa6ebccee3ad600e6bab
[INFO] running `Command { std: "docker" "start" "-a" "dd5d25d401d4643b0abfd5d35f1ee9819480c58f668eaa6ebccee3ad600e6bab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd5d25d401d4643b0abfd5d35f1ee9819480c58f668eaa6ebccee3ad600e6bab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd5d25d401d4643b0abfd5d35f1ee9819480c58f668eaa6ebccee3ad600e6bab", kill_on_drop: false }`
[INFO] [stdout] dd5d25d401d4643b0abfd5d35f1ee9819480c58f668eaa6ebccee3ad600e6bab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] 65612d2910d33ea4c24332bb04864d420555074c2c0c11cea47e61a2507e33a7
[INFO] running `Command { std: "docker" "start" "-a" "65612d2910d33ea4c24332bb04864d420555074c2c0c11cea47e61a2507e33a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking fixedbitset v0.4.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking lapack-sys v0.12.1
[INFO] [stderr]     Checking cblas-sys v0.1.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking petgraph v0.6.0
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking integer-sqrt v0.1.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking pathfinding v3.0.5
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]     Checking cauchy v0.4.0
[INFO] [stderr]     Checking lapack v0.18.0
[INFO] [stderr]     Checking ndarray v0.15.4
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking lax v0.2.0
[INFO] [stderr]     Checking ndarray-linalg v0.14.1
[INFO] [stderr]  Documenting aoc-2021 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(generators, map_first_last, int_abs_diff, box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 `aoc-2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name aoc_2021 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=8f302ad265dc0d40 -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-8772c5ff8aa622ab.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-e363d6a41d9ffc70.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-e10dc731f9ac719c.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-48af6156b37b6b83.rmeta --extern ndarray_linalg=/opt/rustwide/target/debug/deps/libndarray_linalg-5c4e7f38d6171f5f.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-7e7794e10693499a.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-372450fba2946fe4.rmeta --extern num_derive=/opt/rustwide/target/debug/deps/libnum_derive-ab59cb379cf9341d.so --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-972771a370f7d92e.rmeta --extern pathfinding=/opt/rustwide/target/debug/deps/libpathfinding-77fb8250b1a1069d.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-46665a5b1d8c4def.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-93251fd65088a55f.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "65612d2910d33ea4c24332bb04864d420555074c2c0c11cea47e61a2507e33a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65612d2910d33ea4c24332bb04864d420555074c2c0c11cea47e61a2507e33a7", kill_on_drop: false }`
[INFO] [stdout] 65612d2910d33ea4c24332bb04864d420555074c2c0c11cea47e61a2507e33a7