once_cell 1.5.2

# rustc version
rustc 1.49.0-nightly (5404efc28 2020-11-11)# docs.rs version
docsrs 0.6.0 (b527df8 2020-11-09)# build log
[INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace/builds/once_cell-1.5.2/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/once_cell-1.5.2/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" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "--all-features" "-j2" "--" "-Z" "unstable-options" "--extern-html-root-url" "crossbeam_utils=https://docs.rs/crossbeam-utils/0.7.2" "--extern-html-root-url" "lazy_static=https://docs.rs/lazy_static/1.4.0" "--extern-html-root-url" "regex=https://docs.rs/regex/1.2.0" "--resource-suffix" "-20201111-1.49.0-nightly-5404efc28" "--static-root-path" "/" "--cap-lints" "warn" "--disable-per-crate-search", kill_on_drop: false }`
[INFO] [stdout] 2f0887e22d48a24ccceb2f00b2dfd324805fb29b373358196a074ae4a06bf860
[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" "2f0887e22d48a24ccceb2f00b2dfd324805fb29b373358196a074ae4a06bf860", kill_on_drop: false }`
[INFO] [stderr] /opt/crates-build-env/entrypoint.sh: line 7: /etc/hosts: Permission denied
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]  Documenting once_cell v1.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.48s
[INFO] running `Command { std: "docker" "inspect" "2f0887e22d48a24ccceb2f00b2dfd324805fb29b373358196a074ae4a06bf860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f0887e22d48a24ccceb2f00b2dfd324805fb29b373358196a074ae4a06bf860", kill_on_drop: false }`
[INFO] [stdout] 2f0887e22d48a24ccceb2f00b2dfd324805fb29b373358196a074ae4a06bf860