[INFO] cloning repository https://github.com/BlueDragon23/advent-of-code2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BlueDragon23/advent-of-code2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlueDragon23%2Fadvent-of-code2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlueDragon23%2Fadvent-of-code2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cbb29c6627dd7d2a8d43e92aab19c5a560eea634
[INFO] documenting BlueDragon23/advent-of-code2020 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%2FBlueDragon23%2Fadvent-of-code2020" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BlueDragon23/advent-of-code2020 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/BlueDragon23/advent-of-code2020
[INFO] finished tweaking git repo https://github.com/BlueDragon23/advent-of-code2020
[INFO] tweaked toml for git repo https://github.com/BlueDragon23/advent-of-code2020 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/BlueDragon23/advent-of-code2020 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 aho-corasick v0.7.18
[INFO] [stderr]   Downloaded memchr v2.4.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.25
[INFO] [stderr]   Downloaded derive_more v0.99.14
[INFO] [stderr]   Downloaded either v1.6.1
[INFO] [stderr]   Downloaded fixedbitset v0.2.0
[INFO] [stderr]   Downloaded itertools v0.9.0
[INFO] [stderr]   Downloaded regex v1.5.4
[INFO] [stderr]   Downloaded petgraph v0.5.1
[INFO] [stderr]   Downloaded reformation_derive v0.5.2
[INFO] [stderr]   Downloaded libc v0.2.95
[INFO] [stderr]   Downloaded colored v1.9.3
[INFO] [stderr]   Downloaded reformation v0.5.3
[INFO] [stderr]   Downloaded convert_case v0.4.0
[INFO] [stderr]   Downloaded simple_logger v1.11.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.27
[INFO] [stderr]   Downloaded syn v1.0.72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] c92aae2bbeef90950ba978e1002a461079d64877f64223b7513b3b1fa4183292
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c92aae2bbeef90950ba978e1002a461079d64877f64223b7513b3b1fa4183292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c92aae2bbeef90950ba978e1002a461079d64877f64223b7513b3b1fa4183292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c92aae2bbeef90950ba978e1002a461079d64877f64223b7513b3b1fa4183292", kill_on_drop: false }`
[INFO] [stdout] c92aae2bbeef90950ba978e1002a461079d64877f64223b7513b3b1fa4183292
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 06154f165ec957d4e10b3dc7de134005382051fff680660ea175f6b9524d1868
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "06154f165ec957d4e10b3dc7de134005382051fff680660ea175f6b9524d1868", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking simple_logger v1.11.0
[INFO] [stderr]    Compiling derive_more v0.99.14
[INFO] [stderr]    Compiling reformation_derive v0.5.2
[INFO] [stderr]     Checking reformation v0.5.3
[INFO] [stderr]  Documenting advent-of-code2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/bin/day19.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_map_while)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `advent-of-code2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day7 src/bin/day7.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=cb2196f0a0381929 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1e3c371ab90a7930.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-53a79dbf30b0fb4d.rmeta --extern reformation=/opt/rustwide/target/debug/deps/libreformation-0f56b6000f732885.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-f583fade8d015eab.rmeta --extern simple_logger=/opt/rustwide/target/debug/deps/libsimple_logger-30fb10f12aa2a497.rmeta --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 `advent-of-code2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day22 src/bin/day22.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9a377cfd9a52502f -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1e3c371ab90a7930.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-53a79dbf30b0fb4d.rmeta --extern reformation=/opt/rustwide/target/debug/deps/libreformation-0f56b6000f732885.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-f583fade8d015eab.rmeta --extern simple_logger=/opt/rustwide/target/debug/deps/libsimple_logger-30fb10f12aa2a497.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-of-code2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day2 src/bin/day2.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=6e39c1448e396837 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1e3c371ab90a7930.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-53a79dbf30b0fb4d.rmeta --extern reformation=/opt/rustwide/target/debug/deps/libreformation-0f56b6000f732885.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-f583fade8d015eab.rmeta --extern simple_logger=/opt/rustwide/target/debug/deps/libsimple_logger-30fb10f12aa2a497.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-of-code2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day3 src/bin/day3.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1d7d0a805f53ff87 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1e3c371ab90a7930.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-53a79dbf30b0fb4d.rmeta --extern reformation=/opt/rustwide/target/debug/deps/libreformation-0f56b6000f732885.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-f583fade8d015eab.rmeta --extern simple_logger=/opt/rustwide/target/debug/deps/libsimple_logger-30fb10f12aa2a497.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-of-code2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day21 src/bin/day21.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=8cee8901eab392be -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1e3c371ab90a7930.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-53a79dbf30b0fb4d.rmeta --extern reformation=/opt/rustwide/target/debug/deps/libreformation-0f56b6000f732885.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-f583fade8d015eab.rmeta --extern simple_logger=/opt/rustwide/target/debug/deps/libsimple_logger-30fb10f12aa2a497.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-of-code2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day11 src/bin/day11.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=aabbcc78e643905a -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1e3c371ab90a7930.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-53a79dbf30b0fb4d.rmeta --extern reformation=/opt/rustwide/target/debug/deps/libreformation-0f56b6000f732885.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-f583fade8d015eab.rmeta --extern simple_logger=/opt/rustwide/target/debug/deps/libsimple_logger-30fb10f12aa2a497.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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-code2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day19 src/bin/day19.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=b11d33f58cffce21 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1e3c371ab90a7930.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-53a79dbf30b0fb4d.rmeta --extern reformation=/opt/rustwide/target/debug/deps/libreformation-0f56b6000f732885.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-f583fade8d015eab.rmeta --extern simple_logger=/opt/rustwide/target/debug/deps/libsimple_logger-30fb10f12aa2a497.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "06154f165ec957d4e10b3dc7de134005382051fff680660ea175f6b9524d1868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06154f165ec957d4e10b3dc7de134005382051fff680660ea175f6b9524d1868", kill_on_drop: false }`
[INFO] [stdout] 06154f165ec957d4e10b3dc7de134005382051fff680660ea175f6b9524d1868