humantime 2.0.1

# rustc version
rustc 1.46.0-nightly (449e8eaa2 2020-06-10)# docs.rs version
docsrs 0.6.0 (b58f2da 2020-06-09)# build log
[INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace/builds/humantime-2.0.1/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/humantime-2.0.1/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 -20200610-1.46.0-nightly-449e8eaa2 --static-root-path / --cap-lints warn --extern-html-root-url time=https://docs.rs/time/0.1.43 --extern-html-root-url chrono=https://docs.rs/chrono/0.4.11 --extern-html-root-url rand=https://docs.rs/rand/0.6.5" "-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", kill_on_drop: false }`
[INFO] [stdout] 63ed79530ae602e182c6f42ea0edd03dda1d9e8a7bed27ad8cab2211102e17de
[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" "63ed79530ae602e182c6f42ea0edd03dda1d9e8a7bed27ad8cab2211102e17de", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]  Documenting humantime v2.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "63ed79530ae602e182c6f42ea0edd03dda1d9e8a7bed27ad8cab2211102e17de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63ed79530ae602e182c6f42ea0edd03dda1d9e8a7bed27ad8cab2211102e17de", kill_on_drop: false }`
[INFO] [stdout] 63ed79530ae602e182c6f42ea0edd03dda1d9e8a7bed27ad8cab2211102e17de