flips 0.2.1

# rustc version
rustc 1.45.0-nightly (75e1463c5 2020-05-13)# docs.rs version
docsrs 0.6.0 (3125c8b 2020-05-08)# build log
[INFO] running `"docker" "create" "-v" "/home/cratesfyi/workspace/builds/flips-0.2.1/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/flips-0.2.1/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 -20200513-1.45.0-nightly-75e1463c5 --static-root-path / --cap-lints warn --extern-html-root-url flips_sys=https://docs.rs/flips-sys/0.2.1 --extern-html-root-url err_derive=https://docs.rs/err-derive/0.2.4" "-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" "--features" "_doc"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] de55fbce862de2ef17949fded187ad6b2ba787b78e9b7d2d7d8ebbd4a08bf828
[INFO] running `"docker" "start" "-a" "de55fbce862de2ef17949fded187ad6b2ba787b78e9b7d2d7d8ebbd4a08bf828"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.21
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]    Compiling flips-sys v0.2.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]  Documenting flips v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.21s
[INFO] running `"docker" "inspect" "de55fbce862de2ef17949fded187ad6b2ba787b78e9b7d2d7d8ebbd4a08bf828"`
[INFO] running `"docker" "rm" "-f" "de55fbce862de2ef17949fded187ad6b2ba787b78e9b7d2d7d8ebbd4a08bf828"`
[INFO] [stdout] de55fbce862de2ef17949fded187ad6b2ba787b78e9b7d2d7d8ebbd4a08bf828