[INFO] fetching crate derive-com-impl 0.1.1...
[INFO] documenting derive-com-impl-0.1.1 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate derive-com-impl 0.1.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate derive-com-impl 0.1.1 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 derive-com-impl 0.1.1
[INFO] finished tweaking crates.io crate derive-com-impl 0.1.1
[INFO] tweaked toml for crates.io crate derive-com-impl 0.1.1 written to /workspace/builds/worker-11/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 49a066829570ec36597f013b349a3df734c389ebb4a4bfe8674ca24f33a833cd
[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" "49a066829570ec36597f013b349a3df734c389ebb4a4bfe8674ca24f33a833cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49a066829570ec36597f013b349a3df734c389ebb4a4bfe8674ca24f33a833cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49a066829570ec36597f013b349a3df734c389ebb4a4bfe8674ca24f33a833cd", kill_on_drop: false }`
[INFO] [stdout] 49a066829570ec36597f013b349a3df734c389ebb4a4bfe8674ca24f33a833cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] d93b7302962cc288ec7468ef93c69a8c2bf0729ce01c7190fbf0e7a128891645
[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" "d93b7302962cc288ec7468ef93c69a8c2bf0729ce01c7190fbf0e7a128891645", kill_on_drop: false }`
[INFO] [stderr]     Checking syn v0.15.44
[INFO] [stderr]  Documenting derive-com-impl v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.59s
[INFO] running `Command { std: "docker" "inspect" "d93b7302962cc288ec7468ef93c69a8c2bf0729ce01c7190fbf0e7a128891645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d93b7302962cc288ec7468ef93c69a8c2bf0729ce01c7190fbf0e7a128891645", kill_on_drop: false }`
[INFO] [stdout] d93b7302962cc288ec7468ef93c69a8c2bf0729ce01c7190fbf0e7a128891645