[INFO] cloning repository https://github.com/MalteJanz/ludtwig
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MalteJanz/ludtwig" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMalteJanz%2Fludtwig", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMalteJanz%2Fludtwig'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a747ec2a486e2188a29a5f87ced3d275af3513d
[INFO] documenting MalteJanz/ludtwig 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%2FMalteJanz%2Fludtwig" "/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/MalteJanz/ludtwig 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/MalteJanz/ludtwig
[INFO] finished tweaking git repo https://github.com/MalteJanz/ludtwig
[INFO] tweaked toml for git repo https://github.com/MalteJanz/ludtwig written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/MalteJanz/ludtwig 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 pear_codegen v0.2.2
[INFO] [stderr]   Downloaded pear v0.2.2
[INFO] [stderr]   Downloaded figment v0.10.5
[INFO] [stderr]   Downloaded ludtwig-parser v0.3.3
[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: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] fef74cfcf049bcec7d88c978be862328e43f370731e3318fceab3afa349ef996
[INFO] running `Command { std: "docker" "start" "-a" "fef74cfcf049bcec7d88c978be862328e43f370731e3318fceab3afa349ef996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fef74cfcf049bcec7d88c978be862328e43f370731e3318fceab3afa349ef996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fef74cfcf049bcec7d88c978be862328e43f370731e3318fceab3afa349ef996", kill_on_drop: false }`
[INFO] [stdout] fef74cfcf049bcec7d88c978be862328e43f370731e3318fceab3afa349ef996
[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" "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] 91158ac6ba80374625e8528135ca4b2dfddcf22d99059139b42ab378c8598376
[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" "91158ac6ba80374625e8528135ca4b2dfddcf22d99059139b42ab378c8598376", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking inlinable_string v0.1.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling uncased v0.9.6
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling figment v0.10.5
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossbeam-epoch v0.9.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking ludtwig-parser v0.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling pear_codegen v0.2.2
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking pear v0.2.2
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]  Documenting ludtwig v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: public documentation for `send_output` links to private item `OutputMessage`
[INFO] [stdout]   --> src/main.rs:73:36
[INFO] [stdout]    |
[INFO] [stdout] 73 |     /// Helper function to send a [OutputMessage] back to the user.
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^ this item is private
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::private_intra_doc_links)]` on by default
[INFO] [stdout]    = note: this link resolves only because you passed `--document-private-items`, but will break without
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `Command { std: "docker" "inspect" "91158ac6ba80374625e8528135ca4b2dfddcf22d99059139b42ab378c8598376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91158ac6ba80374625e8528135ca4b2dfddcf22d99059139b42ab378c8598376", kill_on_drop: false }`
[INFO] [stdout] 91158ac6ba80374625e8528135ca4b2dfddcf22d99059139b42ab378c8598376