[INFO] fetching crate charts 0.3.0...
[INFO] documenting charts-0.3.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate charts 0.3.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate charts 0.3.0 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 charts 0.3.0
[INFO] finished tweaking crates.io crate charts 0.3.0
[INFO] tweaked toml for crates.io crate charts 0.3.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate charts 0.3.0 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] 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] d1551758ddfe79b7777093c20b749f0b4458e1e58c63b41ad3002f3f427fd75e
[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" "d1551758ddfe79b7777093c20b749f0b4458e1e58c63b41ad3002f3f427fd75e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1551758ddfe79b7777093c20b749f0b4458e1e58c63b41ad3002f3f427fd75e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1551758ddfe79b7777093c20b749f0b4458e1e58c63b41ad3002f3f427fd75e", kill_on_drop: false }`
[INFO] [stdout] d1551758ddfe79b7777093c20b749f0b4458e1e58c63b41ad3002f3f427fd75e
[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] d9c71ceccedb73a20e13b54f9bdf9ff3c6b3d73fdefdf9407337fed79427aeee
[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" "d9c71ceccedb73a20e13b54f9bdf9ff3c6b3d73fdefdf9407337fed79427aeee", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking svg v0.7.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking format_num v0.1.0
[INFO] [stderr]  Documenting charts v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.42s
[INFO] running `Command { std: "docker" "inspect" "d9c71ceccedb73a20e13b54f9bdf9ff3c6b3d73fdefdf9407337fed79427aeee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9c71ceccedb73a20e13b54f9bdf9ff3c6b3d73fdefdf9407337fed79427aeee", kill_on_drop: false }`
[INFO] [stdout] d9c71ceccedb73a20e13b54f9bdf9ff3c6b3d73fdefdf9407337fed79427aeee