[INFO] cloning repository https://github.com/Eosis/AoC2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Eosis/AoC2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEosis%2FAoC2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEosis%2FAoC2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 18ed7c647304c9d2f8be5a3ec497e316f9de250a
[INFO] documenting Eosis/AoC2021 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEosis%2FAoC2021" "/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/Eosis/AoC2021 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Eosis/AoC2021
[INFO] finished tweaking git repo https://github.com/Eosis/AoC2021
[INFO] tweaked toml for git repo https://github.com/Eosis/AoC2021 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Eosis/AoC2021 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-bigint v0.3.1
[INFO] [stderr]   Downloaded cached v0.26.2
[INFO] [stderr]   Downloaded futures-sink v0.3.18
[INFO] [stderr]   Downloaded futures-task v0.3.18
[INFO] [stderr]   Downloaded cached_proc_macro_types v0.1.0
[INFO] [stderr]   Downloaded futures-core v0.3.18
[INFO] [stderr]   Downloaded futures-channel v0.3.18
[INFO] [stderr]   Downloaded async-rwlock v1.3.0
[INFO] [stderr]   Downloaded funty v1.2.0
[INFO] [stderr]   Downloaded argh_derive v0.1.4
[INFO] [stderr]   Downloaded peeking_take_while v1.0.0
[INFO] [stderr]   Downloaded argh_shared v0.1.4
[INFO] [stderr]   Downloaded argh v0.1.4
[INFO] [stderr]   Downloaded wyz v0.4.0
[INFO] [stderr]   Downloaded cached_proc_macro v0.7.1
[INFO] [stderr]   Downloaded futures-io v0.3.18
[INFO] [stderr]   Downloaded bitvec v0.22.3
[INFO] [stderr]   Downloaded counter v0.5.2
[INFO] [stderr]   Downloaded ahash v0.4.7
[INFO] [stderr]   Downloaded num v0.3.1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] d64f6f4be5a1abbe3d751531a19493e96dd831a7a2d20f7819c331bc1cf95c52
[INFO] running `Command { std: "docker" "start" "-a" "d64f6f4be5a1abbe3d751531a19493e96dd831a7a2d20f7819c331bc1cf95c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d64f6f4be5a1abbe3d751531a19493e96dd831a7a2d20f7819c331bc1cf95c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d64f6f4be5a1abbe3d751531a19493e96dd831a7a2d20f7819c331bc1cf95c52", kill_on_drop: false }`
[INFO] [stdout] d64f6f4be5a1abbe3d751531a19493e96dd831a7a2d20f7819c331bc1cf95c52
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] db6d4dccdc5c8fdfce6728fd14a9bd557377f51010a702160e3505fbff8dccb8
[INFO] running `Command { std: "docker" "start" "-a" "db6d4dccdc5c8fdfce6728fd14a9bd557377f51010a702160e3505fbff8dccb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling futures-core v0.3.18
[INFO] [stderr]    Compiling futures-channel v0.3.18
[INFO] [stderr]    Compiling futures-task v0.3.18
[INFO] [stderr]     Checking futures-sink v0.3.18
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking futures-io v0.3.18
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking funty v1.2.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking peeking_take_while v1.0.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking wyz v0.4.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking async-rwlock v1.3.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking counter v0.5.2
[INFO] [stderr]     Checking bitvec v0.22.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]    Compiling darling_core v0.13.1
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling argh_derive v0.1.4
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]     Checking argh v0.1.4
[INFO] [stderr]    Compiling darling v0.13.1
[INFO] [stderr]    Compiling cached_proc_macro v0.7.1
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking cached v0.26.2
[INFO] [stderr]  Documenting aoc_2020 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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_abs_diff)]
[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 `aoc_2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name aoc_2020 src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9a11d67eed137029 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-ee058f4b15ffd47f.rmeta --extern argh=/opt/rustwide/target/debug/deps/libargh-d07c231e0558b9fc.rmeta --extern bit_vec=/opt/rustwide/target/debug/deps/libbit_vec-1fb26c74ecd114a1.rmeta --extern bitvec=/opt/rustwide/target/debug/deps/libbitvec-1681e35aa81b2bf0.rmeta --extern cached=/opt/rustwide/target/debug/deps/libcached-54524c163cf5e80b.rmeta --extern counter=/opt/rustwide/target/debug/deps/libcounter-7a16a308a4df5e8f.rmeta --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-fdf3c2e9f52b9060.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-c3e915a3b5e36158.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-1479f2b7adeaa2b6.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-db6c725e5dc95e83.rmeta --extern peeking_take_while=/opt/rustwide/target/debug/deps/libpeeking_take_while-905e7fea76cc1214.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-ad2ea060d6a78914.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-01d9c5dc0d72cf1f.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "db6d4dccdc5c8fdfce6728fd14a9bd557377f51010a702160e3505fbff8dccb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db6d4dccdc5c8fdfce6728fd14a9bd557377f51010a702160e3505fbff8dccb8", kill_on_drop: false }`
[INFO] [stdout] db6d4dccdc5c8fdfce6728fd14a9bd557377f51010a702160e3505fbff8dccb8