fs-err 2.4.0

# rustc version
rustc 1.48.0-nightly (bbc677480 2020-09-18)# docs.rs version
docsrs 0.6.0 (8fecbb4 2020-09-15)# build log
[INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace/builds/fs-err-2.4.0/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/fs-err-2.4.0/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "DOCS_RS=1" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=-Z unstable-options --static-root-path / --cap-lints warn --disable-per-crate-search --extern-html-root-url serde_json=https://docs.rs/serde_json/1.0.57 --extern-html-root-url version_sync=https://docs.rs/version-sync/0.8.1 --resource-suffix -20200918-1.48.0-nightly-bbc677480" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "3221225472" "--cpus" "2" "--user" "1001:1001" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "doc" "--lib" "--no-deps" "-j2", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0380949fdbfb0b0b70d1b60a61f944e6d25c88e3b6e2a80b2286ffb39db3bd95
[INFO] running `Command { std: "docker" "start" "-a" "0380949fdbfb0b0b70d1b60a61f944e6d25c88e3b6e2a80b2286ffb39db3bd95", kill_on_drop: false }`
[INFO] [stderr] /opt/crates-build-env/entrypoint.sh: line 7: /etc/hosts: Permission denied
[INFO] [stderr]  Documenting fs-err v2.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unresolved link to `fs_err::OpenOptions`
[INFO] [stderr]   --> src/file.rs:46:14
[INFO] [stderr]    |
[INFO] [stderr] 46 |     /// not [`fs_err::OpenOptions`].
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^ no item named `fs_err` in `file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(broken_intra_doc_links)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "0380949fdbfb0b0b70d1b60a61f944e6d25c88e3b6e2a80b2286ffb39db3bd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0380949fdbfb0b0b70d1b60a61f944e6d25c88e3b6e2a80b2286ffb39db3bd95", kill_on_drop: false }`
[INFO] [stdout] 0380949fdbfb0b0b70d1b60a61f944e6d25c88e3b6e2a80b2286ffb39db3bd95