[INFO] fetching crate rsmgclient 0.1.1...
[INFO] documenting rsmgclient-0.1.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate rsmgclient 0.1.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate rsmgclient 0.1.1 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rsmgclient 0.1.1
[INFO] finished tweaking crates.io crate rsmgclient 0.1.1
[INFO] tweaked toml for crates.io crate rsmgclient 0.1.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate rsmgclient 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79e380c5e8fd01e6286e9990f0afe02fbd9d828ef44a25b4cff991591c584882
[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" "79e380c5e8fd01e6286e9990f0afe02fbd9d828ef44a25b4cff991591c584882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79e380c5e8fd01e6286e9990f0afe02fbd9d828ef44a25b4cff991591c584882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79e380c5e8fd01e6286e9990f0afe02fbd9d828ef44a25b4cff991591c584882", kill_on_drop: false }`
[INFO] [stdout] 79e380c5e8fd01e6286e9990f0afe02fbd9d828ef44a25b4cff991591c584882
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1769b37ec87f104e35ad1000b1e6301b2b02bccb478194db85c4897e544dc425
[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" "1769b37ec87f104e35ad1000b1e6301b2b02bccb478194db85c4897e544dc425", kill_on_drop: false }`
[INFO] [stderr]    Compiling rsmgclient v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting rsmgclient v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "1769b37ec87f104e35ad1000b1e6301b2b02bccb478194db85c4897e544dc425", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1769b37ec87f104e35ad1000b1e6301b2b02bccb478194db85c4897e544dc425", kill_on_drop: false }`
[INFO] [stdout] 1769b37ec87f104e35ad1000b1e6301b2b02bccb478194db85c4897e544dc425