tracing-opentelemetry 0.6.0

OpenTelemetry integration for tracing
Documentation
Build #278092 2020-08-04T22:39:12.611753+00:00
# rustc version
rustc 1.47.0-nightly (6c8927b0c 2020-07-26)
# docs.rs version
docsrs 0.6.0 (482d566 2020-08-03)

# build log
[INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace/builds/tracing-opentelemetry-0.6.0/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/tracing-opentelemetry-0.6.0/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" "MAP_USER_ID=1001" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=-Z unstable-options --resource-suffix -20200726-1.47.0-nightly-6c8927b0c --static-root-path / --cap-lints warn --extern-html-root-url tracing_core=https://docs.rs/tracing-core/0.1.12 --extern-html-root-url rand=https://docs.rs/rand/0.7.3 --extern-html-root-url opentelemetry=https://docs.rs/opentelemetry/0.7.0 --extern-html-root-url opentelemetry_jaeger=https://docs.rs/opentelemetry-jaeger/0.6.0 --extern-html-root-url tracing=https://docs.rs/tracing/0.1.18 --extern-html-root-url tracing_log=https://docs.rs/tracing-log/0.1.1 --extern-html-root-url tracing_subscriber=https://docs.rs/tracing-subscriber/0.2.10" "-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" "--network" "none" "rustops/crates-build-env" "/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] 3c3429798c24302f4ab52800e69556226970ac48e3db88792769268f170e9ba6
[INFO] running `Command { std: "docker" "start" "-a" "3c3429798c24302f4ab52800e69556226970ac48e3db88792769268f170e9ba6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking tracing-core v0.1.12
[INFO] [stderr]     Checking sharded-slab v0.0.9
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking tracing-subscriber v0.2.10
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.9
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tracing v0.1.18
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking opentelemetry v0.7.0
[INFO] [stderr]  Documenting tracing-opentelemetry v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.54s
[INFO] running `Command { std: "docker" "inspect" "3c3429798c24302f4ab52800e69556226970ac48e3db88792769268f170e9ba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c3429798c24302f4ab52800e69556226970ac48e3db88792769268f170e9ba6", kill_on_drop: false }`
[INFO] [stdout] 3c3429798c24302f4ab52800e69556226970ac48e3db88792769268f170e9ba6