proptest 0.9.6

# rustc version
rustc 1.44.0-nightly (14061868b 2020-04-10)
# docs.rs version
docsrs 0.6.0 (b667d28 2020-04-11)

# build log
[INFO] running `"docker" "create" "-v" "/home/cratesfyi/workspace/builds/proptest-0.9.6/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/proptest-0.9.6/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 -20200410-1.44.0-nightly-14061868b --static-root-path / --cap-lints warn --extern-html-root-url tempfile=https://docs.rs/tempfile/3.1.0 --extern-html-root-url regex_syntax=https://docs.rs/regex-syntax/0.6.17 --extern-html-root-url bit_set=https://docs.rs/bit-set/0.5.1 --extern-html-root-url rusty_fork=https://docs.rs/rusty-fork/0.2.2 --extern-html-root-url num_traits=https://docs.rs/num-traits/0.2.11 --extern-html-root-url bitflags=https://docs.rs/bitflags/1.2.1 --extern-html-root-url regex=https://docs.rs/regex/1.3.6 --extern-html-root-url rand_chacha=https://docs.rs/rand_chacha/0.1.1 --extern-html-root-url quick_error=https://docs.rs/quick-error/1.2.3 --extern-html-root-url rand_xorshift=https://docs.rs/rand_xorshift/0.1.1 --extern-html-root-url lazy_static=https://docs.rs/lazy_static/1.4.0 --extern-html-root-url byteorder=https://docs.rs/byteorder/1.3.4 --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"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d8f3c9eeb82646bec5cfd3f7b9ae20ebe6e5d3e2a44dd89345871dd540a95a2f
[INFO] running `"docker" "start" "-a" "d8f3c9eeb82646bec5cfd3f7b9ae20ebe6e5d3e2a44dd89345871dd540a95a2f"`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]  Documenting proptest v0.9.6 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.95s
[INFO] running `"docker" "inspect" "d8f3c9eeb82646bec5cfd3f7b9ae20ebe6e5d3e2a44dd89345871dd540a95a2f"`
[INFO] running `"docker" "rm" "-f" "d8f3c9eeb82646bec5cfd3f7b9ae20ebe6e5d3e2a44dd89345871dd540a95a2f"`
[INFO] [stdout] d8f3c9eeb82646bec5cfd3f7b9ae20ebe6e5d3e2a44dd89345871dd540a95a2f