sample 0.11.0

# rustc version
rustc 1.45.0-nightly (451272115 2020-05-28)# docs.rs version
docsrs 0.6.0 (f6cd70b 2020-05-29)# build log
[INFO] running `"docker" "create" "-v" "/home/cratesfyi/workspace/builds/sample-0.11.0/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/sample-0.11.0/source:/opt/rustwide/workdir:ro,Z" "-v" "/home/cratesfyi/workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/home/cratesfyi/workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1001" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=-Z unstable-options --resource-suffix -20200528-1.45.0-nightly-451272115 --static-root-path / --cap-lints warn --extern-html-root-url portaudio=https://docs.rs/portaudio/0.7.0 --extern-html-root-url hound=https://docs.rs/hound/2.0.0 --extern-html-root-url find_folder=https://docs.rs/find_folder/0.3.0" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "3221225472" "--cpus" "2" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "doc" "--lib" "--no-deps" "-j2"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 31872a47d23ddae1ed24a48040060d1d65fe6b1e874bab2bbd0a17c48a47ebb4
[INFO] running `"docker" "start" "-a" "31872a47d23ddae1ed24a48040060d1d65fe6b1e874bab2bbd0a17c48a47ebb4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]  Documenting sample v0.11.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.82s
[INFO] running `"docker" "inspect" "31872a47d23ddae1ed24a48040060d1d65fe6b1e874bab2bbd0a17c48a47ebb4"`
[INFO] running `"docker" "rm" "-f" "31872a47d23ddae1ed24a48040060d1d65fe6b1e874bab2bbd0a17c48a47ebb4"`
[INFO] [stdout] 31872a47d23ddae1ed24a48040060d1d65fe6b1e874bab2bbd0a17c48a47ebb4