[INFO] cloning repository https://github.com/PrVrSs/rox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PrVrSs/rox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrVrSs%2Frox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrVrSs%2Frox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] afbf5ba7b490100bde77d2aad0dbde22acb4dd01
[INFO] documenting PrVrSs/rox against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrVrSs%2Frox" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PrVrSs/rox on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PrVrSs/rox
[INFO] finished tweaking git repo https://github.com/PrVrSs/rox
[INFO] tweaked toml for git repo https://github.com/PrVrSs/rox written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/PrVrSs/rox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded os_str_bytes v2.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9d1d1d21314d7d2e39032cfde935b14a846f428190966dc5da2095aaf6777e9
[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" "b9d1d1d21314d7d2e39032cfde935b14a846f428190966dc5da2095aaf6777e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9d1d1d21314d7d2e39032cfde935b14a846f428190966dc5da2095aaf6777e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9d1d1d21314d7d2e39032cfde935b14a846f428190966dc5da2095aaf6777e9", kill_on_drop: false }`
[INFO] [stdout] b9d1d1d21314d7d2e39032cfde935b14a846f428190966dc5da2095aaf6777e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 6112beb36f49afe442a3f5a806695ff40684dab27cab5cc7362c54495f554244
[INFO] running `Command { std: "docker" "start" "-a" "6112beb36f49afe442a3f5a806695ff40684dab27cab5cc7362c54495f554244", kill_on_drop: false }`
[INFO] [stderr]     Checking os_str_bytes v2.3.2
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]  Documenting rox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `crate::expr::Acceptor`
[INFO] [stdout]  --> src/interpreter.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::expr::{Expr, Acceptor};
[INFO] [stdout]   |                         ^^^^^^^^ no `Acceptor` in `expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate::expr::Acceptor`
[INFO] [stdout]  --> src/ast_printer.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::expr::{Expr, Visitor, Acceptor};
[INFO] [stdout]   |                                  ^^^^^^^^ no `Acceptor` in `expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `rox`.
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name rox src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-e1b1668423da6f34.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "6112beb36f49afe442a3f5a806695ff40684dab27cab5cc7362c54495f554244", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6112beb36f49afe442a3f5a806695ff40684dab27cab5cc7362c54495f554244", kill_on_drop: false }`
[INFO] [stdout] 6112beb36f49afe442a3f5a806695ff40684dab27cab5cc7362c54495f554244