[INFO] cloning repository https://github.com/cassava/aoc17.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cassava/aoc17.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcassava%2Faoc17.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcassava%2Faoc17.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d9ba0ef500b1e44302cddbaf3eb803214fe33c3d
[INFO] documenting cassava/aoc17.rs 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%2Fcassava%2Faoc17.rs" "/workspace/builds/worker-38/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-38/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cassava/aoc17.rs 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/cassava/aoc17.rs
[INFO] finished tweaking git repo https://github.com/cassava/aoc17.rs
[INFO] tweaked toml for git repo https://github.com/cassava/aoc17.rs written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate git repo https://github.com/cassava/aoc17.rs 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex-syntax v0.4.1
[INFO] [stderr]   Downloaded redox_syscall v0.1.32
[INFO] [stderr]   Downloaded clap v2.28.0
[INFO] [stderr]   Downloaded atty v0.2.3
[INFO] [stderr]   Downloaded ansi_term v0.10.2
[INFO] [stderr]   Downloaded thread_local v0.3.5
[INFO] [stderr]   Downloaded memchr v2.0.1
[INFO] [stderr]   Downloaded utf8-ranges v1.0.0
[INFO] [stderr]   Downloaded strsim v0.6.0
[INFO] [stderr]   Downloaded regex v0.2.3
[INFO] [stderr]   Downloaded aho-corasick v0.6.4
[INFO] [stderr]   Downloaded libc v0.2.34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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] [stdout] db3ba71716dc5df4046258ca6536d4a40985693704868b584103087ae49bb0d7
[INFO] running `Command { std: "docker" "start" "-a" "db3ba71716dc5df4046258ca6536d4a40985693704868b584103087ae49bb0d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db3ba71716dc5df4046258ca6536d4a40985693704868b584103087ae49bb0d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db3ba71716dc5df4046258ca6536d4a40985693704868b584103087ae49bb0d7", kill_on_drop: false }`
[INFO] [stdout] db3ba71716dc5df4046258ca6536d4a40985693704868b584103087ae49bb0d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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] [stdout] 30292016f173b086e3d215ea10edf107066e45122afdd7a9d90061ddd01cbb9e
[INFO] running `Command { std: "docker" "start" "-a" "30292016f173b086e3d215ea10edf107066e45122afdd7a9d90061ddd01cbb9e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]     Checking clap v2.28.0
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking regex v0.2.3
[INFO] [stderr]  Documenting aoc v0.16.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aoc v0.16.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/bin/17_vortex.rs:131:13
[INFO] [stdout]     |
[INFO] [stdout] 131 |             ;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `aoc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 07_tree src/bin/07_tree.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=3e70c14d98ecfa2a -L dependency=/opt/rustwide/target/debug/deps --extern aoc=/opt/rustwide/target/debug/deps/libaoc-504af5559a05aa2f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-9a9e7cf5643a762c.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-0e3e0656a0799b4b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-e91a3ae94fb2c03c.rmeta --cap-lints=warn --crate-version 0.16.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not document `aoc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 18_duet src/bin/18_duet.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=94ecbb1db84c7f1a -L dependency=/opt/rustwide/target/debug/deps --extern aoc=/opt/rustwide/target/debug/deps/libaoc-504af5559a05aa2f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-9a9e7cf5643a762c.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-0e3e0656a0799b4b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-e91a3ae94fb2c03c.rmeta --cap-lints=warn --crate-version 0.16.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `aoc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 06_memory src/bin/06_memory.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=06f6f2d1e58ab67f -L dependency=/opt/rustwide/target/debug/deps --extern aoc=/opt/rustwide/target/debug/deps/libaoc-504af5559a05aa2f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-9a9e7cf5643a762c.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-0e3e0656a0799b4b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-e91a3ae94fb2c03c.rmeta --cap-lints=warn --crate-version 0.16.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `aoc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 15_generators src/bin/15_generators.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=2332753e28ae0478 -L dependency=/opt/rustwide/target/debug/deps --extern aoc=/opt/rustwide/target/debug/deps/libaoc-504af5559a05aa2f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-9a9e7cf5643a762c.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-0e3e0656a0799b4b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-e91a3ae94fb2c03c.rmeta --cap-lints=warn --crate-version 0.16.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `aoc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 17_vortex src/bin/17_vortex.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f146f09640316c33 -L dependency=/opt/rustwide/target/debug/deps --extern aoc=/opt/rustwide/target/debug/deps/libaoc-504af5559a05aa2f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-9a9e7cf5643a762c.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-0e3e0656a0799b4b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-e91a3ae94fb2c03c.rmeta --cap-lints=warn --crate-version 0.16.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `aoc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 11_hexgrid src/bin/11_hexgrid.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=47e24983d81e90fd -L dependency=/opt/rustwide/target/debug/deps --extern aoc=/opt/rustwide/target/debug/deps/libaoc-504af5559a05aa2f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-9a9e7cf5643a762c.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-0e3e0656a0799b4b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-e91a3ae94fb2c03c.rmeta --cap-lints=warn --crate-version 0.16.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `aoc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 09_garbage src/bin/09_garbage.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4ecd2e6546d578ba -L dependency=/opt/rustwide/target/debug/deps --extern aoc=/opt/rustwide/target/debug/deps/libaoc-504af5559a05aa2f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-9a9e7cf5643a762c.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-0e3e0656a0799b4b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-e91a3ae94fb2c03c.rmeta --cap-lints=warn --crate-version 0.16.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `aoc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name 12_pipes src/bin/12_pipes.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1206a9af8b7056f0 -L dependency=/opt/rustwide/target/debug/deps --extern aoc=/opt/rustwide/target/debug/deps/libaoc-504af5559a05aa2f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-9a9e7cf5643a762c.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-0e3e0656a0799b4b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-e91a3ae94fb2c03c.rmeta --cap-lints=warn --crate-version 0.16.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "30292016f173b086e3d215ea10edf107066e45122afdd7a9d90061ddd01cbb9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30292016f173b086e3d215ea10edf107066e45122afdd7a9d90061ddd01cbb9e", kill_on_drop: false }`
[INFO] [stdout] 30292016f173b086e3d215ea10edf107066e45122afdd7a9d90061ddd01cbb9e