[INFO] fetching crate rwc 0.2.0...
[INFO] documenting rwc-0.2.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate rwc 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate rwc 0.2.0 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 crates.io crate rwc 0.2.0
[INFO] finished tweaking crates.io crate rwc 0.2.0
[INFO] tweaked toml for crates.io crate rwc 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 91735ed88f4a75035a1c1a7bb39c4744a2551a5bcbd17847585dc65ce28db127
[INFO] running `Command { std: "docker" "start" "-a" "91735ed88f4a75035a1c1a7bb39c4744a2551a5bcbd17847585dc65ce28db127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91735ed88f4a75035a1c1a7bb39c4744a2551a5bcbd17847585dc65ce28db127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91735ed88f4a75035a1c1a7bb39c4744a2551a5bcbd17847585dc65ce28db127", kill_on_drop: false }`
[INFO] [stdout] 91735ed88f4a75035a1c1a7bb39c4744a2551a5bcbd17847585dc65ce28db127
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] e0e3020190cc33d06346d43fb2f85a0b91c37f9e081ea191d77e7545210db505
[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" "e0e3020190cc33d06346d43fb2f85a0b91c37f9e081ea191d77e7545210db505", kill_on_drop: false }`
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]  Documenting rwc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found `"rustc-serialize"`
[INFO] [stdout]  --> src/main.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate "rustc-serialize" as rustc_serialize;
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `rwc`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name rwc 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 docopt=/opt/rustwide/target/debug/deps/libdocopt-27df371941d99726.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-0e355727854478f2.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "e0e3020190cc33d06346d43fb2f85a0b91c37f9e081ea191d77e7545210db505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0e3020190cc33d06346d43fb2f85a0b91c37f9e081ea191d77e7545210db505", kill_on_drop: false }`
[INFO] [stdout] e0e3020190cc33d06346d43fb2f85a0b91c37f9e081ea191d77e7545210db505