[INFO] cloning repository https://github.com/davidkayce/rust-networking
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidkayce/rust-networking" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidkayce%2Frust-networking", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidkayce%2Frust-networking'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4610e64e407e2f8c2a65f8f7095505bfe53d760b
[INFO] documenting davidkayce/rust-networking 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%2Fdavidkayce%2Frust-networking" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davidkayce/rust-networking 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/davidkayce/rust-networking
[INFO] finished tweaking git repo https://github.com/davidkayce/rust-networking
[INFO] tweaked toml for git repo https://github.com/davidkayce/rust-networking written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/davidkayce/rust-networking 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]     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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 4ea3bd45f9e38ff8a42fe35c848f8b0ddfa24b760434ba24a2e1c7b2ad3c2c27
[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" "4ea3bd45f9e38ff8a42fe35c848f8b0ddfa24b760434ba24a2e1c7b2ad3c2c27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ea3bd45f9e38ff8a42fe35c848f8b0ddfa24b760434ba24a2e1c7b2ad3c2c27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ea3bd45f9e38ff8a42fe35c848f8b0ddfa24b760434ba24a2e1c7b2ad3c2c27", kill_on_drop: false }`
[INFO] [stdout] 4ea3bd45f9e38ff8a42fe35c848f8b0ddfa24b760434ba24a2e1c7b2ad3c2c27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] c3985ba8a7fa3dd5266fcec035f721459763dcb5e7122ec83b52a6b096fb3b17
[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" "c3985ba8a7fa3dd5266fcec035f721459763dcb5e7122ec83b52a6b096fb3b17", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking backtrace v0.3.33
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking ron v0.3.0
[INFO] [stderr]     Checking serde-xml-any v0.0.3
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking serde_any v0.5.0
[INFO] [stderr]  Documenting rust-nwtworking v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `;` or `{`, found `-`
[INFO] [stdout]  --> src/main.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | mod tcp-echo-server;
[INFO] [stdout]   |        ^ expected one of `;` or `{`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `rust-nwtworking`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name rust_nwtworking 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 serde=/opt/rustwide/target/debug/deps/libserde-79cafdef7cbca8c3.rmeta --extern serde_any=/opt/rustwide/target/debug/deps/libserde_any-91e716a69e0d6ea3.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-3d78ecfe665d8fbc.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-24fe43632acab442.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "c3985ba8a7fa3dd5266fcec035f721459763dcb5e7122ec83b52a6b096fb3b17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3985ba8a7fa3dd5266fcec035f721459763dcb5e7122ec83b52a6b096fb3b17", kill_on_drop: false }`
[INFO] [stdout] c3985ba8a7fa3dd5266fcec035f721459763dcb5e7122ec83b52a6b096fb3b17