[INFO] cloning repository https://github.com/ethanmott/aoc-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ethanmott/aoc-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanmott%2Faoc-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanmott%2Faoc-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5a7cba076da134f23c74e107631f601a53ee4f2
[INFO] documenting ethanmott/aoc-2020 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%2Fethanmott%2Faoc-2020" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ethanmott/aoc-2020 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] started tweaking git repo https://github.com/ethanmott/aoc-2020
[INFO] finished tweaking git repo https://github.com/ethanmott/aoc-2020
[INFO] tweaked toml for git repo https://github.com/ethanmott/aoc-2020 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ethanmott/aoc-2020 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 parse-display v0.4.0
[INFO] [stderr]   Downloaded parse-display-derive v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] c47514cdd43a87cbdcf655e979ed78eaa9e9a0c3e7102968b3dadeaf99d9c178
[INFO] running `Command { std: "docker" "start" "-a" "c47514cdd43a87cbdcf655e979ed78eaa9e9a0c3e7102968b3dadeaf99d9c178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c47514cdd43a87cbdcf655e979ed78eaa9e9a0c3e7102968b3dadeaf99d9c178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c47514cdd43a87cbdcf655e979ed78eaa9e9a0c3e7102968b3dadeaf99d9c178", kill_on_drop: false }`
[INFO] [stdout] c47514cdd43a87cbdcf655e979ed78eaa9e9a0c3e7102968b3dadeaf99d9c178
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 1772a40d8875d59b71ea9ea47ca97d3f9612d5e3b4acfc7bc9bb7b97a4811345
[INFO] running `Command { std: "docker" "start" "-a" "1772a40d8875d59b71ea9ea47ca97d3f9612d5e3b4acfc7bc9bb7b97a4811345", kill_on_drop: false }`
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/common)
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]  Documenting common v0.1.0 (/opt/rustwide/workdir/common)
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]  Documenting day10 v0.1.0 (/opt/rustwide/workdir/day10)
[INFO] [stderr]  Documenting day19 v0.1.0 (/opt/rustwide/workdir/day19)
[INFO] [stderr]  Documenting day01 v0.1.0 (/opt/rustwide/workdir/day01)
[INFO] [stderr]  Documenting day15 v0.1.0 (/opt/rustwide/workdir/day15)
[INFO] [stderr]  Documenting day14 v0.1.0 (/opt/rustwide/workdir/day14)
[INFO] [stderr]  Documenting day11 v0.1.0 (/opt/rustwide/workdir/day11)
[INFO] [stderr]  Documenting day08 v0.1.0 (/opt/rustwide/workdir/day08)
[INFO] [stderr]  Documenting day12 v0.1.0 (/opt/rustwide/workdir/day12)
[INFO] [stderr]  Documenting day18 v0.1.0 (/opt/rustwide/workdir/day18)
[INFO] [stderr]  Documenting day17 v0.1.0 (/opt/rustwide/workdir/day17)
[INFO] [stderr]  Documenting day13 v0.1.0 (/opt/rustwide/workdir/day13)
[INFO] [stderr]  Documenting day05 v0.1.0 (/opt/rustwide/workdir/day05)
[INFO] [stderr]    Compiling parse-display-derive v0.4.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> day19/src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(str_split_once)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `common`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name common common/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=41f94c81885de361 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not document `day17`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day17 day17/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=733a32a86769590c -L dependency=/opt/rustwide/target/debug/deps --extern common=/opt/rustwide/target/debug/deps/libcommon-41f94c81885de361.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `day19`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day19 day19/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=b25e86ea1c4a0b30 -L dependency=/opt/rustwide/target/debug/deps --extern common=/opt/rustwide/target/debug/deps/libcommon-41f94c81885de361.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `day12`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day12 day12/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=b3c1255781e03838 -L dependency=/opt/rustwide/target/debug/deps --extern common=/opt/rustwide/target/debug/deps/libcommon-41f94c81885de361.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `day08`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day08 day08/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=746c61b840bf9bd6 -L dependency=/opt/rustwide/target/debug/deps --extern common=/opt/rustwide/target/debug/deps/libcommon-41f94c81885de361.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "1772a40d8875d59b71ea9ea47ca97d3f9612d5e3b4acfc7bc9bb7b97a4811345", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1772a40d8875d59b71ea9ea47ca97d3f9612d5e3b4acfc7bc9bb7b97a4811345", kill_on_drop: false }`
[INFO] [stdout] 1772a40d8875d59b71ea9ea47ca97d3f9612d5e3b4acfc7bc9bb7b97a4811345