[INFO] updating cached repository https://github.com/Plesoun/rust_crawler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b14be6338cebe175e2c3adfb58db9644db0d848
[INFO] documenting Plesoun/rust_crawler against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPlesoun%2Frust_crawler" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Plesoun/rust_crawler on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Plesoun/rust_crawler
[INFO] finished tweaking git repo https://github.com/Plesoun/rust_crawler
[INFO] tweaked toml for git repo https://github.com/Plesoun/rust_crawler written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/Plesoun/rust_crawler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eab757cfe13d4b25d24f7126669c2239aa84a10ae4393f28b47b59fc64090901
[INFO] running `Command { std: "docker" "start" "-a" "eab757cfe13d4b25d24f7126669c2239aa84a10ae4393f28b47b59fc64090901", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eab757cfe13d4b25d24f7126669c2239aa84a10ae4393f28b47b59fc64090901", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eab757cfe13d4b25d24f7126669c2239aa84a10ae4393f28b47b59fc64090901", kill_on_drop: false }`
[INFO] [stdout] eab757cfe13d4b25d24f7126669c2239aa84a10ae4393f28b47b59fc64090901
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25e7be76bb969cc3e007e645f1e49e38555263f0a73ad641aaceda4f0e68d950
[INFO] running `Command { std: "docker" "start" "-a" "25e7be76bb969cc3e007e645f1e49e38555263f0a73ad641aaceda4f0e68d950", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
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[INFO] [stderr]    Compiling unicode-xid v0.2.1
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[INFO] [stderr]    Compiling memchr v2.3.3
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[INFO] [stderr]     Checking slab v0.4.2
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[INFO] [stderr]    Compiling version_check v0.9.2
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[INFO] [stderr]    Compiling unicase v2.6.0
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[INFO] [stderr]    Compiling openssl-sys v0.9.58
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[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking surf v1.0.3
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking blocking v0.4.6
[INFO] [stderr]     Checking smol v0.1.18
[INFO] [stderr]     Checking async-std v1.6.2
[INFO] [stderr]  Documenting crawler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found keyword `return`
[INFO] [stdout]   --> src/main.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 41 | ...   println!("Available flags: use -u to select url to crawl, use -h or -help to get this help message, use -d to specify depth (int) of the search")
[INFO] [stdout]    |                                                                                                                                                        - expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout] 42 | ...   return Err("help");
[INFO] [stdout]    |       ^^^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `}`
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         }
[INFO] [stdout]    |         ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `crawler`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name crawler src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-39a79e701ab95f8a.rmeta --extern html5ever=/opt/rustwide/target/debug/deps/libhtml5ever-3df9eb545ccde8cf.rmeta --extern surf=/opt/rustwide/target/debug/deps/libsurf-5a04335de47e35ca.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-5c0864282125e83b.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "25e7be76bb969cc3e007e645f1e49e38555263f0a73ad641aaceda4f0e68d950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25e7be76bb969cc3e007e645f1e49e38555263f0a73ad641aaceda4f0e68d950", kill_on_drop: false }`
[INFO] [stdout] 25e7be76bb969cc3e007e645f1e49e38555263f0a73ad641aaceda4f0e68d950
