[INFO] fetching crate opentelemetry 0.6.0...
[INFO] testing opentelemetry-0.6.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate opentelemetry 0.6.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate opentelemetry 0.6.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate opentelemetry 0.6.0
[INFO] finished tweaking crates.io crate opentelemetry 0.6.0
[INFO] tweaked toml for crates.io crate opentelemetry 0.6.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate opentelemetry 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] 03959b22953c67f7289b7e8d34bc4e3ac76e5ec08d475da451f4a522ea9ff8df
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "03959b22953c67f7289b7e8d34bc4e3ac76e5ec08d475da451f4a522ea9ff8df"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling prometheus v0.7.0
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling opentelemetry v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.22s
[INFO] running `"docker" "inspect" "03959b22953c67f7289b7e8d34bc4e3ac76e5ec08d475da451f4a522ea9ff8df"`
[INFO] running `"docker" "rm" "-f" "03959b22953c67f7289b7e8d34bc4e3ac76e5ec08d475da451f4a522ea9ff8df"`
[INFO] [stdout] 03959b22953c67f7289b7e8d34bc4e3ac76e5ec08d475da451f4a522ea9ff8df
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9cdb79934a27d0670fb2efa8aa0083cbf0b5fea7d3f3050123f150a582e2d12f
[INFO] running `"docker" "start" "-a" "9cdb79934a27d0670fb2efa8aa0083cbf0b5fea7d3f3050123f150a582e2d12f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling criterion v0.3.2
[INFO] [stderr]    Compiling opentelemetry v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 34.10s
[INFO] running `"docker" "inspect" "9cdb79934a27d0670fb2efa8aa0083cbf0b5fea7d3f3050123f150a582e2d12f"`
[INFO] running `"docker" "rm" "-f" "9cdb79934a27d0670fb2efa8aa0083cbf0b5fea7d3f3050123f150a582e2d12f"`
[INFO] [stdout] 9cdb79934a27d0670fb2efa8aa0083cbf0b5fea7d3f3050123f150a582e2d12f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 70bd9a75e51ab76cb88f585634233d8ff0f836d5059818ddda679b9c72eca68e
[INFO] running `"docker" "start" "-a" "70bd9a75e51ab76cb88f585634233d8ff0f836d5059818ddda679b9c72eca68e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/opentelemetry-246723ddb23169fc
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test api::context::propagation::binary_propagator::tests::from_bytes_conversion ... ok
[INFO] [stdout] test api::trace::trace_context_propagator::tests::inject_w3c ... ok
[INFO] [stdout] test api::correlation::propagation::tests::extract_correlations ... ok
[INFO] [stdout] test api::context::propagation::binary_propagator::tests::to_bytes_conversion ... ok
[INFO] [stdout] test api::trace::b3_propagator::tests::inject_b3 ... ok
[INFO] [stdout] test api::context::propagation::composite_propagator::tests::extract_multiple_propagators ... ok
[INFO] [stdout] test sdk::trace::evicted_hash_map::tests::insert_over_capacity_test ... ok
[INFO] [stdout] test sdk::trace::evicted_queue::tests::insert_over_capacity_test ... ok
[INFO] [stdout] test api::trace::b3_propagator::tests::extract_b3 ... ok
[INFO] [stdout] test api::trace::trace_context_propagator::tests::extract_w3c ... ok
[INFO] [stdout] test api::context::propagation::composite_propagator::tests::inject_multiple_propagators ... ok
[INFO] [stdout] test api::context::tests::nested_contexts ... ok
[INFO] [stdout] test api::correlation::propagation::tests::inject_correlations ... ok
[INFO] [stderr]    Doc-tests opentelemetry
[INFO] [stdout] test sdk::trace::sampler::tests::sampling ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 32 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --test /opt/rustwide/workdir/src/lib.rs --crate-name opentelemetry -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cfg 'feature="prometheus"' --cfg 'feature="pin-project"' --cfg 'feature="trace"' --cfg 'feature="default"' --cfg 'feature="metrics"' --cfg 'feature="rand"' --cfg 'feature="futures"' --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-f396636bcab09d2e.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-6af2bbf1fd0cc98e.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-807f2c476a0e6b86.rlib --extern opentelemetry=/opt/rustwide/target/debug/deps/libopentelemetry-a6366eb6b395f0f8.rlib --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-94d16d88db9564e5.rlib --extern pin_project=/opt/rustwide/target/debug/deps/libpin_project-af9ffda60ffa2fd7.rlib --extern prometheus=/opt/rustwide/target/debug/deps/libprometheus-68b95002438e6038.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-76e34f11f20ec390.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-b1d9066268c91f2e.rlib` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "70bd9a75e51ab76cb88f585634233d8ff0f836d5059818ddda679b9c72eca68e"`
[INFO] running `"docker" "rm" "-f" "70bd9a75e51ab76cb88f585634233d8ff0f836d5059818ddda679b9c72eca68e"`
[INFO] [stdout] 70bd9a75e51ab76cb88f585634233d8ff0f836d5059818ddda679b9c72eca68e