[INFO] cloning repository https://github.com/forgerpl/webcrawl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/forgerpl/webcrawl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforgerpl%2Fwebcrawl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforgerpl%2Fwebcrawl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 29fd7499dd3bc8789b9dbc9b2f039fc704e67db7
[INFO] documenting forgerpl/webcrawl against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforgerpl%2Fwebcrawl" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/forgerpl/webcrawl on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/forgerpl/webcrawl
[INFO] removed workspace from git repo https://github.com/forgerpl/webcrawl
[INFO] removed path dependency crawler from git repo https://github.com/forgerpl/webcrawl
[INFO] finished tweaking git repo https://github.com/forgerpl/webcrawl
[INFO] tweaked toml for git repo https://github.com/forgerpl/webcrawl written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/forgerpl/webcrawl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (crawler) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (crawler) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 930ca2fd7d81a5f8f2926e854be66f94aa1f2d4732807f25ee6f428f233ccb01
[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" "930ca2fd7d81a5f8f2926e854be66f94aa1f2d4732807f25ee6f428f233ccb01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "930ca2fd7d81a5f8f2926e854be66f94aa1f2d4732807f25ee6f428f233ccb01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "930ca2fd7d81a5f8f2926e854be66f94aa1f2d4732807f25ee6f428f233ccb01", kill_on_drop: false }`
[INFO] [stdout] 930ca2fd7d81a5f8f2926e854be66f94aa1f2d4732807f25ee6f428f233ccb01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c92b231c2a343a045532cbcf00d6689170a4052398c8ca0dbb08d0592beb69b
[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" "0c92b231c2a343a045532cbcf00d6689170a4052398c8ca0dbb08d0592beb69b", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (crawler) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking crawler v0.1.0
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking miniz_oxide v0.4.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking hashbrown v0.4.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]  Documenting webcrawl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `crawler::prelude`, `serde_json`, `env_logger`
[INFO] [stdout]   --> src/main.rs:65:14
[INFO] [stdout]    |
[INFO] [stdout] 65 | use crawler::prelude::*;
[INFO] [stdout]    |              ^^^^^^^ could not find `prelude` in `crawler`
[INFO] [stdout] ...
[INFO] [stdout] 75 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 86 | use env_logger;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Urls` in this scope
[INFO] [stdout]    --> src/main.rs:95:14
[INFO] [stdout]     |
[INFO] [stdout] 95  |     Finished(Urls),
[INFO] [stdout]     |              ^^^^ help: a struct with a similar name exists: `Url`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.7.2/src/lib.rs:154:1
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub struct Url {
[INFO] [stdout]     | -------------- similarly named struct `Url` defined here
[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] [stdout] Some errors have detailed explanations: E0412, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `webcrawl`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name webcrawl 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 clap=/opt/rustwide/target/debug/deps/libclap-5e80f06216331e5d.rmeta --extern crawler=/opt/rustwide/target/debug/deps/libcrawler-1ce9de7e07fbbffc.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-5a3feb297a06b939.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-5012ea58e189948d.rmeta --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-81b588c7ebe28d67.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-039e07fb2c7d61c2.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-958bf2a074a4960f.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-5429dd6d097468fb.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-8bae3ae9c73ef762.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-6755a24efcfc79e1.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-2a0b458e8f00cefd.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-1216b9cbfa590ac0.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "0c92b231c2a343a045532cbcf00d6689170a4052398c8ca0dbb08d0592beb69b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c92b231c2a343a045532cbcf00d6689170a4052398c8ca0dbb08d0592beb69b", kill_on_drop: false }`
[INFO] [stdout] 0c92b231c2a343a045532cbcf00d6689170a4052398c8ca0dbb08d0592beb69b