macsmc 0.1.1

# rustc version
rustc 1.46.0-nightly (feb3536eb 2020-06-09)# docs.rs version
docsrs 0.6.0 (b58f2da 2020-06-09)# build log
[INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace/builds/macsmc-0.1.1/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/macsmc-0.1.1/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 -20200609-1.46.0-nightly-feb3536eb --static-root-path / --cap-lints warn --extern-html-root-url libc=https://docs.rs/libc/0.2.71" "-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] 3f54c1cf8f95d15fd3e2b1c393b1e80ccc6101ae7ff47267373ceb256b5115d3
[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" "3f54c1cf8f95d15fd3e2b1c393b1e80ccc6101ae7ff47267373ceb256b5115d3", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]  Documenting macsmc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: works only on macOS
[INFO] [stderr]   --> src/lib.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | compile_error!("works only on macOS");
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `libc`
[INFO] [stderr]     --> src/lib.rs:1537:34
[INFO] [stderr]      |
[INFO] [stderr] 1537 |                 const CONF_NAME: libc::c_int = libc::_SC_NPROCESSORS_ONLN;
[INFO] [stderr]      |                                  ^^^^ use of undeclared type or module `libc`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `libc`
[INFO] [stderr]     --> src/lib.rs:1537:48
[INFO] [stderr]      |
[INFO] [stderr] 1537 |                 const CONF_NAME: libc::c_int = libc::_SC_NPROCESSORS_ONLN;
[INFO] [stderr]      |                                                ^^^^ use of undeclared type or module `libc`
[INFO] [stderr] 
[INFO] [stderr] error: Compilation failed, aborting rustdoc
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: Could not document `macsmc`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name macsmc src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi -L dependency=/opt/rustwide/target/debug/deps -Z unstable-options --resource-suffix -20200609-1.46.0-nightly-feb3536eb --static-root-path / --cap-lints warn --extern-html-root-url 'libc=https://docs.rs/libc/0.2.71'` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "3f54c1cf8f95d15fd3e2b1c393b1e80ccc6101ae7ff47267373ceb256b5115d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f54c1cf8f95d15fd3e2b1c393b1e80ccc6101ae7ff47267373ceb256b5115d3", kill_on_drop: false }`
[INFO] [stdout] 3f54c1cf8f95d15fd3e2b1c393b1e80ccc6101ae7ff47267373ceb256b5115d3