[INFO] cloning repository https://github.com/abextm/advent-of-code-2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/abextm/advent-of-code-2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabextm%2Fadvent-of-code-2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabextm%2Fadvent-of-code-2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ededb426c54bdfaf06db9646869780b549e9b8a8
[INFO] documenting abextm/advent-of-code-2019 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabextm%2Fadvent-of-code-2019" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/abextm/advent-of-code-2019 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/abextm/advent-of-code-2019
[INFO] finished tweaking git repo https://github.com/abextm/advent-of-code-2019
[INFO] tweaked toml for git repo https://github.com/abextm/advent-of-code-2019 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/abextm/advent-of-code-2019 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num v0.2.0
[INFO] [stderr]   Downloaded strum v0.16.0
[INFO] [stderr]   Downloaded aoc-runner-internal v0.1.0
[INFO] [stderr]   Downloaded num-bigint v0.2.3
[INFO] [stderr]   Downloaded serde v1.0.103
[INFO] [stderr]   Downloaded aoc-runner v0.2.2
[INFO] [stderr]   Downloaded aoc-runner-derive v0.2.2
[INFO] [stderr]   Downloaded strum_macros v0.16.0
[INFO] [stderr]   Downloaded serde_derive v1.0.103
[INFO] [stderr]   Downloaded syn v1.0.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 11bc49c39c70c327d4c5d847c148157c73f1f884b03350f4b8e73fc6daa02ae3
[INFO] running `Command { std: "docker" "start" "-a" "11bc49c39c70c327d4c5d847c148157c73f1f884b03350f4b8e73fc6daa02ae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11bc49c39c70c327d4c5d847c148157c73f1f884b03350f4b8e73fc6daa02ae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11bc49c39c70c327d4c5d847c148157c73f1f884b03350f4b8e73fc6daa02ae3", kill_on_drop: false }`
[INFO] [stdout] 11bc49c39c70c327d4c5d847c148157c73f1f884b03350f4b8e73fc6daa02ae3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 16cb4617f3ec185b89e56c7646e2ca5f467671c34880bc3c69f0e29b0a902bbc
[INFO] running `Command { std: "docker" "start" "-a" "16cb4617f3ec185b89e56c7646e2ca5f467671c34880bc3c69f0e29b0a902bbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]     Checking aoc-runner v0.2.2
[INFO] [stderr]     Checking strum v0.16.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking num-complex v0.2.3
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling aoc-runner-internal v0.1.0
[INFO] [stderr]    Compiling aoc-runner-derive v0.2.2
[INFO] [stderr]  Documenting aoc19 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: proc macro panicked
[INFO] [stdout]   --> src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | aoc_lib! {year=2019}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: failed to write infos from lib: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day1.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[aoc(day1, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day1.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[aoc(day1, part2)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day2.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[aoc(day2, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day2.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[aoc(day2, part2)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day3.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[aoc(day3, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day3.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[aoc(day3, part2)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day4.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[aoc(day4, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day4.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[aoc(day4, part2)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day5.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[aoc(day5, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day5.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[aoc(day5, part2)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day6.rs:85:1
[INFO] [stdout]    |
[INFO] [stdout] 85 | #[aoc(day6, part1)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day6.rs:90:1
[INFO] [stdout]    |
[INFO] [stdout] 90 | #[aoc(day6, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day7.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[aoc(day7, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day7.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[aoc(day7, part2)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day8.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[aoc(day8, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day8.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[aoc(day8, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day9.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[aoc(day9, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day9.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[aoc(day9, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day10.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[aoc(day10, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day10.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[aoc(day10, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day11.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[aoc(day11, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day11.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[aoc(day11, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day12.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[aoc(day12, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day12.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[aoc(day12, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day13.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[aoc(day13, part1)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day13.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[aoc(day13, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day14.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[aoc(day14, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day14.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[aoc(day14, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]    --> src/day15.rs:127:1
[INFO] [stdout]     |
[INFO] [stdout] 127 | #[aoc(day15, part1)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]    --> src/day15.rs:132:1
[INFO] [stdout]     |
[INFO] [stdout] 132 | #[aoc(day15, part2)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_generics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 33 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `aoc19`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name aoc19 src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern aoc_runner=/opt/rustwide/target/debug/deps/libaoc_runner-985c10b7a74ab4da.rmeta --extern aoc_runner_derive=/opt/rustwide/target/debug/deps/libaoc_runner_derive-a260cd0f037aef83.so --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-db88f49d9e5662e7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-230a21fa80529ab5.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-13b01f7cffee51ae.rmeta --extern strum=/opt/rustwide/target/debug/deps/libstrum-9175090273c7a8fe.rmeta --extern strum_macros=/opt/rustwide/target/debug/deps/libstrum_macros-78b4c56e26a1ea73.so --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "16cb4617f3ec185b89e56c7646e2ca5f467671c34880bc3c69f0e29b0a902bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16cb4617f3ec185b89e56c7646e2ca5f467671c34880bc3c69f0e29b0a902bbc", kill_on_drop: false }`
[INFO] [stdout] 16cb4617f3ec185b89e56c7646e2ca5f467671c34880bc3c69f0e29b0a902bbc
