[INFO] fetching crate opentracingrust 0.3.4...
[INFO] extracting crate opentracingrust 0.3.4 into work/ex/beta-1.37-6/sources/1.36.0/reg/opentracingrust/0.3.4
[INFO] extracting crate opentracingrust 0.3.4 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/opentracingrust/0.3.4
[INFO] validating manifest of opentracingrust-0.3.4 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of opentracingrust-0.3.4 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/reg/opentracingrust/0.3.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing opentracingrust-0.3.4 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] d58d55d17e8b8281d432121795b09c66024cde116eb0621e3fce79827bd4ecd7
[INFO] running `"docker" "start" "-a" "d58d55d17e8b8281d432121795b09c66024cde116eb0621e3fce79827bd4ecd7"`
[INFO] [stderr]    Compiling opentracingrust v0.3.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `"docker" "inspect" "d58d55d17e8b8281d432121795b09c66024cde116eb0621e3fce79827bd4ecd7"`
[INFO] running `"docker" "rm" "-f" "d58d55d17e8b8281d432121795b09c66024cde116eb0621e3fce79827bd4ecd7"`
[INFO] [stdout] d58d55d17e8b8281d432121795b09c66024cde116eb0621e3fce79827bd4ecd7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 43db214e4a5f5d729eb9a37483806687122979ea6385b17be26193ccd4bada24
[INFO] running `"docker" "start" "-a" "43db214e4a5f5d729eb9a37483806687122979ea6385b17be26193ccd4bada24"`
[INFO] [stderr]    Compiling opentracingrust v0.3.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.01s
[INFO] running `"docker" "inspect" "43db214e4a5f5d729eb9a37483806687122979ea6385b17be26193ccd4bada24"`
[INFO] running `"docker" "rm" "-f" "43db214e4a5f5d729eb9a37483806687122979ea6385b17be26193ccd4bada24"`
[INFO] [stdout] 43db214e4a5f5d729eb9a37483806687122979ea6385b17be26193ccd4bada24
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] ce3ed0d170064d5d5b183d6a447996976b6fc3a46b88ace6386aa50ce2f0aa44
[INFO] running `"docker" "start" "-a" "ce3ed0d170064d5d5b183d6a447996976b6fc3a46b88ace6386aa50ce2f0aa44"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/opentracingrust-3481d9c5b288a226
[INFO] [stdout] 
[INFO] [stdout] running 67 tests
[INFO] [stdout] test span::log::tests::defults_to_no_time ... 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::hash_map::inject_keys ... ok
[INFO] [stdout] test span::log::tests::add_field ... ok
[INFO] [stdout] test carrier::tests::tree_map::extract_keys ... ok
[INFO] [stdout] test carrier::tests::hash_map::extract_keys ... ok
[INFO] [stdout] test carrier::tests::tree_map::inject_keys ... ok
[INFO] [stdout] test span::tests::autofinish_as_mut ... ok
[INFO] [stdout] test span::tests::autofinish_deref ... ok
[INFO] [stdout] test span::tests::autoclose_finish_span_on_drop ... ok
[INFO] [stdout] test span::tag::tests::set_tag ... ok
[INFO] [stdout] test span::tag::tests::iterate_over_tags ... ok
[INFO] [stdout] test span::tag::tests::get_missing_tag ... ok
[INFO] [stdout] test span::tests::references::child_of ... ok
[INFO] [stdout] test span::tests::send_span_on_finish ... ok
[INFO] [stdout] test span::log::tests::set_log_timestamp ... ok
[INFO] [stdout] test span::tests::set_span_name ... ok
[INFO] [stdout] test span::tests::span_child_of_another ... ok
[INFO] [stdout] test span::tests::span_follows_another ... ok
[INFO] [stdout] test span::log::tests::set_default_timestamp ... ok
[INFO] [stdout] test span::tests::references::multi_refs ... ok
[INFO] [stdout] test span::tests::references::follows ... ok
[INFO] [stdout] test span::tests::start_span_on_creation ... ok
[INFO] [stdout] test span::tests::tags::add_integer_tag ... ok
[INFO] [stdout] test span::tests::tags::add_bool_tag ... ok
[INFO] [stdout] test span::tests::tags::add_float_tag ... ok
[INFO] [stdout] test span::tests::tags::add_generic_tag ... ok
[INFO] [stdout] test span::tests::tags::add_string_tag ... ok
[INFO] [stdout] test span::tests::times::finish_span_at_finish_time ... ok
[INFO] [stdout] test span::tests::times::finish_span_on_finish ... ok
[INFO] [stdout] test span::tests::tags::add_str_tag ... ok
[INFO] [stdout] test span::tests::times::start_time_set ... ok
[INFO] [stdout] test span::tests::times::starts_now_by_default ... ok
[INFO] [stdout] test span_context::impl_context::tests::clone_context ... ok
[INFO] [stdout] test tracer::tests::extract_http_headers ... ok
[INFO] [stdout] test span_context::tests::clone_span_context ... ok
[INFO] [stdout] test span_context::tests::extract_implementation_context ... ok
[INFO] [stdout] test span_context::tests::set_baggage_item ... ok
[INFO] [stdout] test tracer::tests::create_span ... ok
[INFO] [stdout] test tracer::tests::extract_textmap ... ok
[INFO] [stdout] test tracer::tests::inject_binary ... ok
[INFO] [stdout] test tracer::tests::extract_binary ... ok
[INFO] [stdout] test tracer::tests::inject_http_headers ... ok
[INFO] [stdout] test tracer::tests::inject_textmap ... ok
[INFO] [stdout] test span_context::impl_context::tests::unwrap_context ... 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 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::extract::http_headers ... ok
[INFO] [stdout] test tracers::file::tests::span::inject::http_headers ... ok
[INFO] [stdout] test tracers::file::tests::span::inject::text_map ... ok
[INFO] [stdout] test tracers::file::tests::span::extract::invalid::returns_none_without_trace_id ... ok
[INFO] [stdout] test tracers::noop::tests::inner_context::follows_updates_trace_id ... ok
[INFO] [stdout] test tracers::file::tests::span::create ... ok
[INFO] [stdout] test tracers::file::tests::span::write ... ok
[INFO] [stdout] test tracers::noop::tests::inner_context::child_of_updates_trace_id ... ok
[INFO] [stdout] test utils::fail::tests::fail_spans ... ok
[INFO] [stdout] test utils::global_tracer::tests::tracer_is_returned ... ok
[INFO] [stderr] error: process didn't exit successfully: `/opt/crater/target/debug/deps/opentracingrust-3481d9c5b288a226` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `"docker" "inspect" "ce3ed0d170064d5d5b183d6a447996976b6fc3a46b88ace6386aa50ce2f0aa44"`
[INFO] running `"docker" "rm" "-f" "ce3ed0d170064d5d5b183d6a447996976b6fc3a46b88ace6386aa50ce2f0aa44"`
[INFO] [stdout] ce3ed0d170064d5d5b183d6a447996976b6fc3a46b88ace6386aa50ce2f0aa44