jsonlogic 0.5.1

# rustc version
rustc 1.43.0-nightly (75cf41afb 2020-03-04)# docs.rs version
docsrs 0.6.0 (be4a0c1 2020-03-04)# build log
[INFO] running `"docker" "create" "-v" "/home/cratesfyi/workspace/builds/jsonlogic-0.5.1/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/jsonlogic-0.5.1/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 -20200304-1.43.0-nightly-75cf41afb --static-root-path / --extern-html-root-url serde_json=https://docs.rs/serde_json/1.0.42" "-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] 1cd587fc5c950b9b4d129f7adca61ab7933941b44b5cde9ca2a4dd737ed4c4ac
[INFO] running `"docker" "start" "-a" "1cd587fc5c950b9b4d129f7adca61ab7933941b44b5cde9ca2a4dd737ed4c4ac"`
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]  Documenting jsonlogic v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.51s
[INFO] running `"docker" "inspect" "1cd587fc5c950b9b4d129f7adca61ab7933941b44b5cde9ca2a4dd737ed4c4ac"`
[INFO] running `"docker" "rm" "-f" "1cd587fc5c950b9b4d129f7adca61ab7933941b44b5cde9ca2a4dd737ed4c4ac"`
[INFO] [stdout] 1cd587fc5c950b9b4d129f7adca61ab7933941b44b5cde9ca2a4dd737ed4c4ac