[INFO] cloning repository https://github.com/CasualX/programming-problems-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CasualX/programming-problems-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCasualX%2Fprogramming-problems-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCasualX%2Fprogramming-problems-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7241b2852f58a66e4cc0f643a16a9ab1e1aa978c
[INFO] documenting CasualX/programming-problems-rs against 1.64.0 for beta-1.65-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCasualX%2Fprogramming-problems-rs" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CasualX/programming-problems-rs on toolchain 1.64.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CasualX/programming-problems-rs
[INFO] finished tweaking git repo https://github.com/CasualX/programming-problems-rs
[INFO] tweaked toml for git repo https://github.com/CasualX/programming-problems-rs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/CasualX/programming-problems-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5bd44cb818b1bab21e31cc9e66bb655ad2b0e8558475fdbcaef2478a28b25653
[INFO] running `Command { std: "docker" "start" "-a" "5bd44cb818b1bab21e31cc9e66bb655ad2b0e8558475fdbcaef2478a28b25653", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bd44cb818b1bab21e31cc9e66bb655ad2b0e8558475fdbcaef2478a28b25653", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bd44cb818b1bab21e31cc9e66bb655ad2b0e8558475fdbcaef2478a28b25653", kill_on_drop: false }`
[INFO] [stdout] 5bd44cb818b1bab21e31cc9e66bb655ad2b0e8558475fdbcaef2478a28b25653
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b17b26fc92f286a30f6e2dbc3a9764cca9bea8c5ba269bc70fcb97feb5be6651
[INFO] running `Command { std: "docker" "start" "-a" "b17b26fc92f286a30f6e2dbc3a9764cca9bea8c5ba269bc70fcb97feb5be6651", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.8
[INFO] [stderr]     Checking unicode-segmentation v0.1.2
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]  Documenting programming-problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `programming-problems`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name liststrings_12 'src/list, strings/12-rotate-list.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=3773f145f9add5d7 -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-45e07be0a8b8ff79.rmeta --extern unicode_segmentation=/opt/rustwide/target/debug/deps/libunicode_segmentation-16f41f10dc8d06de.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 `programming-problems`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name liststrings_1 'src/list, strings/1-largest-element.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=71fc45fa154d92fc -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-45e07be0a8b8ff79.rmeta --extern unicode_segmentation=/opt/rustwide/target/debug/deps/libunicode_segmentation-16f41f10dc8d06de.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "b17b26fc92f286a30f6e2dbc3a9764cca9bea8c5ba269bc70fcb97feb5be6651", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b17b26fc92f286a30f6e2dbc3a9764cca9bea8c5ba269bc70fcb97feb5be6651", kill_on_drop: false }`
[INFO] [stdout] b17b26fc92f286a30f6e2dbc3a9764cca9bea8c5ba269bc70fcb97feb5be6651