[INFO] crate opentracingrust 0.3.4 is already in cache
[INFO] extracting crate opentracingrust 0.3.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/opentracingrust/0.3.4
[INFO] extracting crate opentracingrust 0.3.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/opentracingrust/0.3.4
[INFO] validating manifest of opentracingrust-0.3.4 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of opentracingrust-0.3.4 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing opentracingrust-0.3.4
[INFO] finished frobbing opentracingrust-0.3.4
[INFO] frobbed toml for opentracingrust-0.3.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/opentracingrust/0.3.4/Cargo.toml
[INFO] started frobbing opentracingrust-0.3.4
[INFO] finished frobbing opentracingrust-0.3.4
[INFO] frobbed toml for opentracingrust-0.3.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/opentracingrust/0.3.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing opentracingrust-0.3.4 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/opentracingrust/0.3.4:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] b772c1cfc2303ac172a638e90a29b919511a5fb919f4729030ac6c3ea4101acc
[INFO] running `"docker" "start" "-a" "b772c1cfc2303ac172a638e90a29b919511a5fb919f4729030ac6c3ea4101acc"`
[INFO] [stderr]    Compiling opentracingrust v0.3.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/carrier.rs:30:24
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Binary(Box<&'a mut self::io::Read>),
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn self::io::Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/carrier.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |     HttpHeaders(Box<&'a MapCarrier>),
[INFO] [stderr]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn MapCarrier`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/carrier.rs:32:21
[INFO] [stderr]    |
[INFO] [stderr] 32 |     TextMap(Box<&'a MapCarrier>)
[INFO] [stderr]    |                     ^^^^^^^^^^ help: use `dyn`: `dyn MapCarrier`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/carrier.rs:57:24
[INFO] [stderr]    |
[INFO] [stderr] 57 |     Binary(Box<&'a mut self::io::Write>),
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn self::io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/carrier.rs:58:29
[INFO] [stderr]    |
[INFO] [stderr] 58 |     HttpHeaders(Box<&'a mut MapCarrier>),
[INFO] [stderr]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn MapCarrier`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/carrier.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 |     TextMap(Box<&'a mut MapCarrier>)
[INFO] [stderr]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn MapCarrier`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/span_context/impl_context.rs:81:32
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn impl_context(&self) -> &Any;
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/span_context/impl_context.rs:84:28
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn clone(&self) -> Box<ImplContext>;
[INFO] [stderr]    |                            ^^^^^^^^^^^ help: use `dyn`: `dyn ImplContext`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/span_context/impl_context.rs:144:32
[INFO] [stderr]     |
[INFO] [stderr] 144 |     fn impl_context(&self) -> &Any {
[INFO] [stderr]     |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/span_context/impl_context.rs:148:28
[INFO] [stderr]     |
[INFO] [stderr] 148 |     fn clone(&self) -> Box<ImplContext> {
[INFO] [stderr]     |                            ^^^^^^^^^^^ help: use `dyn`: `dyn ImplContext`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/span_context/mod.rs:93:16
[INFO] [stderr]    |
[INFO] [stderr] 93 |     inner: Box<ImplContext>,
[INFO] [stderr]    |                ^^^^^^^^^^^ help: use `dyn`: `dyn ImplContext`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tracer.rs:58:17
[INFO] [stderr]    |
[INFO] [stderr] 58 |     tracer: Box<TracerInterface>
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TracerInterface`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.14s
[INFO] running `"docker" "inspect" "b772c1cfc2303ac172a638e90a29b919511a5fb919f4729030ac6c3ea4101acc"`
[INFO] running `"docker" "rm" "-f" "b772c1cfc2303ac172a638e90a29b919511a5fb919f4729030ac6c3ea4101acc"`
[INFO] [stdout] b772c1cfc2303ac172a638e90a29b919511a5fb919f4729030ac6c3ea4101acc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/opentracingrust/0.3.4:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 82bbb27fa83da22c640650fa765476dd28ec3cd3144b8088525575aa98bf39a8
[INFO] running `"docker" "start" "-a" "82bbb27fa83da22c640650fa765476dd28ec3cd3144b8088525575aa98bf39a8"`
[INFO] [stderr]    Compiling opentracingrust v0.3.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/1-custom-tracer.rs:43:32
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn impl_context(&self) -> &Any {
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/1-custom-tracer.rs:47:28
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn clone(&self) -> Box<ImplContext> {
[INFO] [stderr]    |                            ^^^^^^^^^^^ help: use `dyn`: `dyn ImplContext`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/carrier.rs:30:24
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Binary(Box<&'a mut self::io::Read>),
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn self::io::Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/carrier.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |     HttpHeaders(Box<&'a MapCarrier>),
[INFO] [stderr]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn MapCarrier`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/carrier.rs:32:21
[INFO] [stderr]    |
[INFO] [stderr] 32 |     TextMap(Box<&'a MapCarrier>)
[INFO] [stderr]    |                     ^^^^^^^^^^ help: use `dyn`: `dyn MapCarrier`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/carrier.rs:57:24
[INFO] [stderr]    |
[INFO] [stderr] 57 |     Binary(Box<&'a mut self::io::Write>),
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn self::io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/carrier.rs:58:29
[INFO] [stderr]    |
[INFO] [stderr] 58 |     HttpHeaders(Box<&'a mut MapCarrier>),
[INFO] [stderr]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn MapCarrier`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/carrier.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 |     TextMap(Box<&'a mut MapCarrier>)
[INFO] [stderr]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn MapCarrier`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/span_context/impl_context.rs:81:32
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn impl_context(&self) -> &Any;
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/span_context/impl_context.rs:84:28
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn clone(&self) -> Box<ImplContext>;
[INFO] [stderr]    |                            ^^^^^^^^^^^ help: use `dyn`: `dyn ImplContext`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/span_context/impl_context.rs:144:32
[INFO] [stderr]     |
[INFO] [stderr] 144 |     fn impl_context(&self) -> &Any {
[INFO] [stderr]     |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/span_context/impl_context.rs:148:28
[INFO] [stderr]     |
[INFO] [stderr] 148 |     fn clone(&self) -> Box<ImplContext> {
[INFO] [stderr]     |                            ^^^^^^^^^^^ help: use `dyn`: `dyn ImplContext`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/span_context/mod.rs:93:16
[INFO] [stderr]    |
[INFO] [stderr] 93 |     inner: Box<ImplContext>,
[INFO] [stderr]    |                ^^^^^^^^^^^ help: use `dyn`: `dyn ImplContext`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tracer.rs:58:17
[INFO] [stderr]    |
[INFO] [stderr] 58 |     tracer: Box<TracerInterface>
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TracerInterface`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/utils/fail.rs:108:36
[INFO] [stderr]     |
[INFO] [stderr] 108 |         fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.19s
[INFO] running `"docker" "inspect" "82bbb27fa83da22c640650fa765476dd28ec3cd3144b8088525575aa98bf39a8"`
[INFO] running `"docker" "rm" "-f" "82bbb27fa83da22c640650fa765476dd28ec3cd3144b8088525575aa98bf39a8"`
[INFO] [stdout] 82bbb27fa83da22c640650fa765476dd28ec3cd3144b8088525575aa98bf39a8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/opentracingrust/0.3.4:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 43e3b896f0462c1bf3c6835771b71d747a708f7af9eb8f156c5d50e779868d9a
[INFO] running `"docker" "start" "-a" "43e3b896f0462c1bf3c6835771b71d747a708f7af9eb8f156c5d50e779868d9a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/opentracingrust-412c83d45b28932e
[INFO] [stdout] 
[INFO] [stdout] running 67 tests
[INFO] [stdout] test carrier::tests::hash_map::extract_keys ... ok
[INFO] [stdout] test carrier::tests::tree_map::extract_keys ... ok
[INFO] [stdout] test carrier::tests::hash_map::inject_keys ... ok
[INFO] [stdout] test carrier::tests::hash_map::find_keys ... ok
[INFO] [stdout] test carrier::tests::tree_map::find_keys ... ok
[INFO] [stdout] test carrier::tests::tree_map::inject_keys ... ok
[INFO] [stdout] test span::log::tests::add_field ... ok
[INFO] [stdout] test span::tag::tests::iterate_over_tags ... ok
[INFO] [stdout] test span::log::tests::set_log_timestamp ... ok
[INFO] [stdout] test span::log::tests::defults_to_no_time ... ok
[INFO] [stdout] test span::log::tests::set_default_timestamp ... ok
[INFO] [stdout] test span::tag::tests::get_missing_tag ... ok
[INFO] [stdout] test span::tests::autofinish_deref ... ok
[INFO] [stdout] test span::tests::autofinish_as_mut ... ok
[INFO] [stdout] test span::tag::tests::set_tag ... ok
[INFO] [stdout] test span::tests::references::follows ... ok
[INFO] [stdout] test span::tests::references::multi_refs ... ok
[INFO] [stdout] test span::tests::references::child_of ... ok
[INFO] [stdout] test span::tests::send_span_on_finish ... ok
[INFO] [stdout] test span::tests::set_span_name ... ok
[INFO] [stdout] test span::tests::tags::add_generic_tag ... ok
[INFO] [stdout] test span::tests::tags::add_integer_tag ... ok
[INFO] [stdout] test span::tests::span_child_of_another ... ok
[INFO] [stdout] test span::tests::start_span_on_creation ... ok
[INFO] [stdout] test span::tests::tags::add_bool_tag ... ok
[INFO] [stdout] test span::tests::tags::add_str_tag ... ok
[INFO] [stdout] test span::tests::span_follows_another ... ok
[INFO] [stdout] test span::tests::times::finish_span_at_finish_time ... ok
[INFO] [stdout] test span::tests::autoclose_finish_span_on_drop ... ok
[INFO] [stdout] test span::tests::tags::add_string_tag ... ok
[INFO] [stdout] test span::tests::tags::add_float_tag ... ok
[INFO] [stdout] test span::tests::times::finish_span_on_finish ... ok
[INFO] [stdout] test span::tests::times::start_time_set ... ok
[INFO] [stdout] test tracer::tests::create_span ... ok
[INFO] [stdout] test span_context::tests::set_baggage_item ... ok
[INFO] [stdout] test tracer::tests::extract_binary ... ok
[INFO] [stdout] test span_context::impl_context::tests::unwrap_context ... ok
[INFO] [stdout] test span_context::tests::clone_span_context ... ok
[INFO] [stdout] test tracer::tests::inject_binary ... ok
[INFO] [stdout] test tracer::tests::extract_textmap ... ok
[INFO] [stdout] test tracer::tests::inject_textmap ... ok
[INFO] [stdout] test tracer::tests::inject_http_headers ... ok
[INFO] [stdout] test tracers::file::tests::span::create ... ok
[INFO] [stdout] test tracers::file::tests::span::extract::http_headers ... ok
[INFO] [stdout] test tracer::tests::extract_http_headers ... ok
[INFO] [stdout] test span_context::impl_context::tests::clone_context ... ok
[INFO] [stdout] test span::tests::times::starts_now_by_default ... ok
[INFO] [stdout] test tracers::file::tests::span::extract::invalid::fails_if_invalid_span_id ... ok
[INFO] [stdout] test span_context::tests::debug_formatting ... ok
[INFO] [stdout] test span_context::tests::extract_implementation_context ... ok
[INFO] [stdout] test tracers::file::tests::span::extract::invalid::returns_none_without_trace_id ... ok
[INFO] [stdout] test tracers::file::tests::span::extract::invalid::fails_if_invalid_trace_id ... ok
[INFO] [stdout] test tracers::file::tests::span::extract::invalid::returns_none_without_span_id ... ok
[INFO] [stdout] test tracers::file::tests::span::inject::text_map ... ok
[INFO] [stdout] test tracers::noop::tests::inner_context::child_of_updates_trace_id ... ok
[INFO] [stdout] test tracers::file::tests::span::write ... ok
[INFO] [stdout] test tracers::file::tests::span::inject::http_headers ... ok
[INFO] [stdout] test utils::fail::tests::fail_spans ... ok
[INFO] [stdout] test tracers::noop::tests::inner_context::follows_updates_trace_id ... ok
[INFO] [stdout] test utils::global_tracer::tests::tracer_is_returned ... ok
[INFO] [stdout] test utils::global_tracer::tests::tracer_is_returned_to_many_threads ... ok
[INFO] [stdout] test tracers::file::tests::span::extract::binary_not_supported ... ok
[INFO] [stdout] test tracers::file::tests::span::inject::binary_not_supported ... ok
[INFO] [stdout] test utils::global_tracer::tests::tracer_cannot_be_set_twice ... ok
[INFO] [stdout] test tracers::noop::tests::inner_context::panics_if_invalid_context ... ok
[INFO] [stdout] test utils::global_tracer::tests::tracer_must_be_set ... ok
[INFO] [stdout] test utils::reporter::tests::receive_span ... ok
[INFO] [stderr]    Doc-tests opentracingrust
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 67 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/span/mod.rs - span::Span::tag (line 300) ... ok
[INFO] [stdout] test src/span/log.rs - span::log::Log (line 17) ... ok
[INFO] [stdout] test src/carrier.rs - carrier::ExtractFormat (line 13) ... ok
[INFO] [stdout] test src/carrier.rs - carrier::InjectFormat (line 43) ... ok
[INFO] [stdout] test src/span_context/impl_context.rs - span_context::impl_context::ImplContext (line 27) ... ok
[INFO] [stdout] test src/span/mod.rs - span::StartOptions (line 350) ... ok
[INFO] [stdout] test src/lib.rs -  (line 102) ... ok
[INFO] [stdout] test src/lib.rs -  (line 68) ... ok
[INFO] [stdout] test src/span_context/impl_context.rs - span_context::impl_context::ImplContextBox (line 108) ... ok
[INFO] [stdout] test src/tracers/noop.rs - tracers::noop::NoopTracer (line 35) ... ok
[INFO] [stdout] test src/utils/global_tracer.rs - utils::global_tracer::GlobalTracer (line 29) ... ok
[INFO] [stdout] test src/span_context/mod.rs - span_context::SpanContext (line 39) ... ok
[INFO] [stdout] test src/utils/fail.rs - utils::fail::FailSpan (line 13) ... ok
[INFO] [stdout] test src/tracers/file.rs - tracers::file::FileTracer (line 42) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "43e3b896f0462c1bf3c6835771b71d747a708f7af9eb8f156c5d50e779868d9a"`
[INFO] running `"docker" "rm" "-f" "43e3b896f0462c1bf3c6835771b71d747a708f7af9eb8f156c5d50e779868d9a"`
[INFO] [stdout] 43e3b896f0462c1bf3c6835771b71d747a708f7af9eb8f156c5d50e779868d9a