[INFO] cloning repository https://github.com/MaartenStaa/advent-of-code-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MaartenStaa/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaartenStaa%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaartenStaa%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0784923099a9ca52f99fb530da338af0a3ff9859
[INFO] documenting MaartenStaa/advent-of-code-2020 against master#d7d9f15be205b45d44700e7ac33b4f79b91f9680 for pr-117450
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaartenStaa%2Fadvent-of-code-2020" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MaartenStaa/advent-of-code-2020 on toolchain d7d9f15be205b45d44700e7ac33b4f79b91f9680
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MaartenStaa/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/MaartenStaa/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/MaartenStaa/advent-of-code-2020 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MaartenStaa/advent-of-code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe22ebe0f9298163170e63cdb04451834b30457a71a8809ba9b1a5d5be40d50a
[INFO] running `Command { std: "docker" "start" "-a" "fe22ebe0f9298163170e63cdb04451834b30457a71a8809ba9b1a5d5be40d50a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe22ebe0f9298163170e63cdb04451834b30457a71a8809ba9b1a5d5be40d50a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe22ebe0f9298163170e63cdb04451834b30457a71a8809ba9b1a5d5be40d50a", kill_on_drop: false }`
[INFO] [stdout] fe22ebe0f9298163170e63cdb04451834b30457a71a8809ba9b1a5d5be40d50a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cee3f3706d0304037a7c3f97b1274c0e6da43515405b68e0f3f3fd383549bb10
[INFO] running `Command { std: "docker" "start" "-a" "cee3f3706d0304037a7c3f97b1274c0e6da43515405b68e0f3f3fd383549bb10", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]  Documenting day4-1 v0.1.0 (/opt/rustwide/workdir/day4-1)
[INFO] [stderr]  Documenting day1-1 v0.1.0 (/opt/rustwide/workdir/day1-1)
[INFO] [stderr]  Documenting day3-1 v0.1.0 (/opt/rustwide/workdir/day3-1)
[INFO] [stderr]  Documenting day3-2 v0.1.0 (/opt/rustwide/workdir/day3-2)
[INFO] [stderr]  Documenting day1-2 v0.1.0 (/opt/rustwide/workdir/day1-2)
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]  Documenting day2-2 v0.1.0 (/opt/rustwide/workdir/day2-2)
[INFO] [stderr]  Documenting day2-1 v0.1.0 (/opt/rustwide/workdir/day2-1)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day1_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day1_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day2_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day2_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day3_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day3_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day4_1/index.html
[INFO] running `Command { std: "docker" "inspect" "cee3f3706d0304037a7c3f97b1274c0e6da43515405b68e0f3f3fd383549bb10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cee3f3706d0304037a7c3f97b1274c0e6da43515405b68e0f3f3fd383549bb10", kill_on_drop: false }`
[INFO] [stdout] cee3f3706d0304037a7c3f97b1274c0e6da43515405b68e0f3f3fd383549bb10
[INFO] documenting MaartenStaa/advent-of-code-2020 against master#50be22964035027398754e54cd3a497efb00f83e for pr-117450
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaartenStaa%2Fadvent-of-code-2020" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MaartenStaa/advent-of-code-2020 on toolchain 50be22964035027398754e54cd3a497efb00f83e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50be22964035027398754e54cd3a497efb00f83e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MaartenStaa/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/MaartenStaa/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/MaartenStaa/advent-of-code-2020 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MaartenStaa/advent-of-code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50be22964035027398754e54cd3a497efb00f83e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+50be22964035027398754e54cd3a497efb00f83e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 405ce14d4c89e23aa621f382d4db1e4435bebbc5e75d830f4e57d31701e06323
[INFO] running `Command { std: "docker" "start" "-a" "405ce14d4c89e23aa621f382d4db1e4435bebbc5e75d830f4e57d31701e06323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "405ce14d4c89e23aa621f382d4db1e4435bebbc5e75d830f4e57d31701e06323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "405ce14d4c89e23aa621f382d4db1e4435bebbc5e75d830f4e57d31701e06323", kill_on_drop: false }`
[INFO] [stdout] 405ce14d4c89e23aa621f382d4db1e4435bebbc5e75d830f4e57d31701e06323
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+50be22964035027398754e54cd3a497efb00f83e" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c417a98cea6d77ea3e495b7227e1ef453a8b19bac7e58ac26e45fc113bccf03
[INFO] running `Command { std: "docker" "start" "-a" "5c417a98cea6d77ea3e495b7227e1ef453a8b19bac7e58ac26e45fc113bccf03", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]  Documenting day1-1 v0.1.0 (/opt/rustwide/workdir/day1-1)
[INFO] [stderr]  Documenting day3-2 v0.1.0 (/opt/rustwide/workdir/day3-2)
[INFO] [stderr]  Documenting day4-1 v0.1.0 (/opt/rustwide/workdir/day4-1)
[INFO] [stderr]  Documenting day1-2 v0.1.0 (/opt/rustwide/workdir/day1-2)
[INFO] [stderr]  Documenting day3-1 v0.1.0 (/opt/rustwide/workdir/day3-1)
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stdout] error[E0309]: the associated type `<I as std::iter::Iterator>::Item` may not live long enough
[INFO] [stdout]   --> day4-1/src/split.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl<'a, I: Iterator, F> Iterator for SplitIterator<I, F>
[INFO] [stdout]    |      -- the associated type `<I as std::iter::Iterator>::Item` must be valid for the lifetime `'a` as defined here...
[INFO] [stdout] ...
[INFO] [stdout] 36 |     type Item = Vec<&'a I::Item>;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^ ...so that the reference type `&'a <I as std::iter::Iterator>::Item` does not outlive the data it points at
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding an explicit lifetime bound
[INFO] [stdout]    |
[INFO] [stdout] 36 |     type Item = Vec<&'a I::Item> where <I as std::iter::Iterator>::Item: 'a;
[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 E0309`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `day4-1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/50be22964035027398754e54cd3a497efb00f83e/bin/rustdoc --edition=2018 --crate-type bin --crate-name day4_1 day4-1/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=972d79457af47c70 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5c417a98cea6d77ea3e495b7227e1ef453a8b19bac7e58ac26e45fc113bccf03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c417a98cea6d77ea3e495b7227e1ef453a8b19bac7e58ac26e45fc113bccf03", kill_on_drop: false }`
[INFO] [stdout] 5c417a98cea6d77ea3e495b7227e1ef453a8b19bac7e58ac26e45fc113bccf03