[INFO] cloning repository https://github.com/duncanfinney/advent-of-rust-2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/duncanfinney/advent-of-rust-2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduncanfinney%2Fadvent-of-rust-2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduncanfinney%2Fadvent-of-rust-2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e58a2aae16f0391fc521a3bf9b0fdcf3901c2f7
[INFO] documenting duncanfinney/advent-of-rust-2018 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%2Fduncanfinney%2Fadvent-of-rust-2018" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/duncanfinney/advent-of-rust-2018 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/duncanfinney/advent-of-rust-2018
[INFO] finished tweaking git repo https://github.com/duncanfinney/advent-of-rust-2018
[INFO] tweaked toml for git repo https://github.com/duncanfinney/advent-of-rust-2018 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/duncanfinney/advent-of-rust-2018 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 once_cell v0.1.6
[INFO] [stderr]   Downloaded cached v0.8.0
[INFO] [stderr]   Downloaded id_tree v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1e34975373c8403e4592bcb52da69d09e767d0b8f52f210b8f2817c3da5a7258
[INFO] running `Command { std: "docker" "start" "-a" "1e34975373c8403e4592bcb52da69d09e767d0b8f52f210b8f2817c3da5a7258", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e34975373c8403e4592bcb52da69d09e767d0b8f52f210b8f2817c3da5a7258", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e34975373c8403e4592bcb52da69d09e767d0b8f52f210b8f2817c3da5a7258", kill_on_drop: false }`
[INFO] [stdout] 1e34975373c8403e4592bcb52da69d09e767d0b8f52f210b8f2817c3da5a7258
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 39650c176cd5aa30e16c6fd524d2c55747dc8d73bb79f79131bafd1ccb6f7bd6
[INFO] running `Command { std: "docker" "start" "-a" "39650c176cd5aa30e16c6fd524d2c55747dc8d73bb79f79131bafd1ccb6f7bd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking arrayvec v0.4.8
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking id_tree v1.3.0
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking once_cell v0.1.6
[INFO] [stderr]     Checking cached v0.8.0
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]  Documenting advent-of-rust-2018 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(slice_patterns, duration_as_u128, type_ascription)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `slice_patterns` has been stable since `1.42.0` and no longer requires an attribute to enable
[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 `advent-of-rust-2018`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name advent_of_rust_2018 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=384d665885189429 -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-45de085c4bc42aa4.rmeta --extern cached=/opt/rustwide/target/debug/deps/libcached-86843e7aac32c414.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-272caf0118d871ed.rmeta --extern id_tree=/opt/rustwide/target/debug/deps/libid_tree-e9b52dfa0dd57f5c.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-431154ef4d2b3258.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-f60e308c3c51d075.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-ec973f9ae8e21f69.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-91759faeb4440adb.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-dce4ee7c15d9c9a5.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-84f57718fff5a891.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "39650c176cd5aa30e16c6fd524d2c55747dc8d73bb79f79131bafd1ccb6f7bd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39650c176cd5aa30e16c6fd524d2c55747dc8d73bb79f79131bafd1ccb6f7bd6", kill_on_drop: false }`
[INFO] [stdout] 39650c176cd5aa30e16c6fd524d2c55747dc8d73bb79f79131bafd1ccb6f7bd6
