sp-std 2.0.0-rc3

Lowest-abstraction level for the Substrate runtime: just exports useful primitives from std or client/alloc to be used with any code that depends on the runtime.
Documentation
Build #258892 2020-06-08T19:53:32.069256+00:00
# rustc version
rustc 1.46.0-nightly (0262de554 2020-06-07)# docs.rs version
docsrs 0.6.0 (2edd72e 2020-06-07)# build log
[INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace/builds/sp-std-2.0.0-rc3/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/sp-std-2.0.0-rc3/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 -20200607-1.46.0-nightly-0262de554 --static-root-path / --cap-lints warn" "-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] eec5832fa77614cfc170845821a2310010c39def14ef6259ab63c0d8ab72d658
[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" "eec5832fa77614cfc170845821a2310010c39def14ef6259ab63c0d8ab72d658", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]  Documenting sp-std v2.0.0-rc3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.91s
[INFO] running `Command { std: "docker" "inspect" "eec5832fa77614cfc170845821a2310010c39def14ef6259ab63c0d8ab72d658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eec5832fa77614cfc170845821a2310010c39def14ef6259ab63c0d8ab72d658", kill_on_drop: false }`
[INFO] [stdout] eec5832fa77614cfc170845821a2310010c39def14ef6259ab63c0d8ab72d658