[INFO] cloning repository https://github.com/iXialumy/adv2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iXialumy/adv2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiXialumy%2Fadv2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiXialumy%2Fadv2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00ed5472bc29fe3c7732c6da56333d0058df2ab6
[INFO] documenting iXialumy/adv2021 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiXialumy%2Fadv2021" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iXialumy/adv2021 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iXialumy/adv2021
[INFO] finished tweaking git repo https://github.com/iXialumy/adv2021
[INFO] tweaked toml for git repo https://github.com/iXialumy/adv2021 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/iXialumy/adv2021 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nom-supreme v0.8.0
[INFO] [stderr]   Downloaded brownstone v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9b14e98ee65e240cda80e066bd30b4948a6e62a11a2a6b1908352afdb4ad7af
[INFO] running `Command { std: "docker" "start" "-a" "a9b14e98ee65e240cda80e066bd30b4948a6e62a11a2a6b1908352afdb4ad7af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9b14e98ee65e240cda80e066bd30b4948a6e62a11a2a6b1908352afdb4ad7af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9b14e98ee65e240cda80e066bd30b4948a6e62a11a2a6b1908352afdb4ad7af", kill_on_drop: false }`
[INFO] [stdout] a9b14e98ee65e240cda80e066bd30b4948a6e62a11a2a6b1908352afdb4ad7af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b874c60369014ff1e2be09a7afb5d0142b5680b1598ff1fc9898c257746b08d
[INFO] running `Command { std: "docker" "start" "-a" "3b874c60369014ff1e2be09a7afb5d0142b5680b1598ff1fc9898c257746b08d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]    Compiling rayon-core v1.9.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling rayon v1.5.2
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking num-complex v0.4.1
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking brownstone v3.0.0
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking fixedbitset v0.4.1
[INFO] [stderr]     Checking joinery v2.1.0
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking indent_write v2.2.0
[INFO] [stderr]     Checking crossterm v0.24.0
[INFO] [stderr]     Checking petgraph v0.6.0
[INFO] [stderr]     Checking ndarray v0.15.4
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking nom-supreme v0.8.0
[INFO] [stderr]     Checking adv2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting adv2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/bin/adv18a.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_roundings)]
[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 `adv2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name adv18a src/bin/adv18a.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=9d4cec15fa49f56a -L dependency=/opt/rustwide/target/debug/deps --extern adv2021=/opt/rustwide/target/debug/deps/libadv2021-c9cd6b4e209bc9b3.rmeta --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-be3732221f63218a.rmeta --extern crossterm=/opt/rustwide/target/debug/deps/libcrossterm-38a5d5737249e18c.rmeta --extern indicatif=/opt/rustwide/target/debug/deps/libindicatif-bd60012678500aa9.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-b56d2f27611771eb.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-ee0a9fe939730b8a.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-dd4ab8f728ca7b5b.rmeta --extern nom_supreme=/opt/rustwide/target/debug/deps/libnom_supreme-9f787a320ca713f5.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-8274243f7b5cd34a.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-3d7e85e0b125516a.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-397c3806ba114085.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-4cda21e5b426bf5b.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3b874c60369014ff1e2be09a7afb5d0142b5680b1598ff1fc9898c257746b08d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b874c60369014ff1e2be09a7afb5d0142b5680b1598ff1fc9898c257746b08d", kill_on_drop: false }`
[INFO] [stdout] 3b874c60369014ff1e2be09a7afb5d0142b5680b1598ff1fc9898c257746b08d
