owning_ref 0.4.1

# rustc version
rustc 1.43.0-nightly (abc3073c9 2020-02-26)# docs.rs version
docsrs 0.6.0 (7de24ca 2020-02-23)# build log
[INFO] running `"docker" "create" "-v" "/home/cratesfyi/workspace/builds/owning_ref-0.4.1/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/owning_ref-0.4.1/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 -20200226-1.43.0-nightly-abc3073c9 --static-root-path / --extern-html-root-url stable_deref_trait=https://docs.rs/stable_deref_trait/1.1.1" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "3221225472" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "doc" "--lib" "--no-deps"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4adad88e1c79ce95959d1fa8a2dcc35e6bc6e684942bb6c7ffd3c92b4002fb56
[INFO] running `"docker" "start" "-a" "4adad88e1c79ce95959d1fa8a2dcc35e6bc6e684942bb6c7ffd3c92b4002fb56"`
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]  Documenting owning_ref v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1074:28
[INFO] [stderr]      |
[INFO] [stderr] 1074 |     where O: Send, for<'a> (&'a T): Send {}
[INFO] [stderr]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1076:28
[INFO] [stderr]      |
[INFO] [stderr] 1076 |     where O: Sync, for<'a> (&'a T): Sync {}
[INFO] [stderr]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1079:28
[INFO] [stderr]      |
[INFO] [stderr] 1079 |     where O: Send, for<'a> (&'a mut T): Send {}
[INFO] [stderr]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1081:28
[INFO] [stderr]      |
[INFO] [stderr] 1081 |     where O: Sync, for<'a> (&'a mut T): Sync {}
[INFO] [stderr]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `"docker" "inspect" "4adad88e1c79ce95959d1fa8a2dcc35e6bc6e684942bb6c7ffd3c92b4002fb56"`
[INFO] running `"docker" "rm" "-f" "4adad88e1c79ce95959d1fa8a2dcc35e6bc6e684942bb6c7ffd3c92b4002fb56"`
[INFO] [stdout] 4adad88e1c79ce95959d1fa8a2dcc35e6bc6e684942bb6c7ffd3c92b4002fb56