[INFO] crate opentracing-rs-jaeger 0.1.0 is already in cache
[INFO] extracting crate opentracing-rs-jaeger 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/opentracing-rs-jaeger/0.1.0
[INFO] extracting crate opentracing-rs-jaeger 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/opentracing-rs-jaeger/0.1.0
[INFO] validating manifest of opentracing-rs-jaeger-0.1.0 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 opentracing-rs-jaeger-0.1.0 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 opentracing-rs-jaeger-0.1.0
[INFO] finished frobbing opentracing-rs-jaeger-0.1.0
[INFO] frobbed toml for opentracing-rs-jaeger-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/opentracing-rs-jaeger/0.1.0/Cargo.toml
[INFO] started frobbing opentracing-rs-jaeger-0.1.0
[INFO] finished frobbing opentracing-rs-jaeger-0.1.0
[INFO] frobbed toml for opentracing-rs-jaeger-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/opentracing-rs-jaeger/0.1.0/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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing opentracing-rs-jaeger-0.1.0 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-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/opentracing-rs-jaeger/0.1.0:/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] c77facd26eb425c682c481d9df108609c21d16f98ddf33c1a79737de88703c49
[INFO] running `"docker" "start" "-a" "c77facd26eb425c682c481d9df108609c21d16f98ddf33c1a79737de88703c49"`
[INFO] [stderr]    Compiling opentracing-rs-core v0.1.0
[INFO] [stderr]    Compiling opentracing-rs-jaeger v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `span`
[INFO] [stderr]   --> src/reporter.rs:40:26
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn report(&mut self, span: &Span) {}
[INFO] [stderr]    |                          ^^^^ help: consider prefixing with an underscore: `_span`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/reporter.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_reporter`
[INFO] [stderr]   --> src/reporter.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn add_reporter(&mut self, reporter: Box<Reporter>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SAMPLER_PARAM_TAG_KEY`
[INFO] [stderr]  --> src/sampler.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const SAMPLER_PARAM_TAG_KEY: &str = "";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sampling_rate`
[INFO] [stderr]   --> src/sampler.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     sampling_rate: f64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `service_name`
[INFO] [stderr]   --> src/tracer.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     service_name: Cow<'static, str>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sampler`
[INFO] [stderr]   --> src/tracer.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     sampler: S,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `"docker" "inspect" "c77facd26eb425c682c481d9df108609c21d16f98ddf33c1a79737de88703c49"`
[INFO] running `"docker" "rm" "-f" "c77facd26eb425c682c481d9df108609c21d16f98ddf33c1a79737de88703c49"`
[INFO] [stdout] c77facd26eb425c682c481d9df108609c21d16f98ddf33c1a79737de88703c49
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/opentracing-rs-jaeger/0.1.0:/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] 8d5427359067c55854af8b03712188bdb6d560845874aff62d2201b36b958d66
[INFO] running `"docker" "start" "-a" "8d5427359067c55854af8b03712188bdb6d560845874aff62d2201b36b958d66"`
[INFO] [stderr]    Compiling opentracing-rs-jaeger v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `span`
[INFO] [stderr]   --> src/reporter.rs:40:26
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn report(&mut self, span: &Span) {}
[INFO] [stderr]    |                          ^^^^ help: consider prefixing with an underscore: `_span`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/reporter.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_reporter`
[INFO] [stderr]   --> src/reporter.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn add_reporter(&mut self, reporter: Box<Reporter>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SAMPLER_PARAM_TAG_KEY`
[INFO] [stderr]  --> src/sampler.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const SAMPLER_PARAM_TAG_KEY: &str = "";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sampling_rate`
[INFO] [stderr]   --> src/sampler.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     sampling_rate: f64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `service_name`
[INFO] [stderr]   --> src/tracer.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     service_name: Cow<'static, str>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sampler`
[INFO] [stderr]   --> src/tracer.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     sampler: S,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "8d5427359067c55854af8b03712188bdb6d560845874aff62d2201b36b958d66"`
[INFO] running `"docker" "rm" "-f" "8d5427359067c55854af8b03712188bdb6d560845874aff62d2201b36b958d66"`
[INFO] [stdout] 8d5427359067c55854af8b03712188bdb6d560845874aff62d2201b36b958d66
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/opentracing-rs-jaeger/0.1.0:/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] 6212d50ca63d2ee99b7105b445dcdf3a45a678441a5d2612e3474bd9f5987ed1
[INFO] running `"docker" "start" "-a" "6212d50ca63d2ee99b7105b445dcdf3a45a678441a5d2612e3474bd9f5987ed1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/opentracing_rs_jaeger-891fbd15c0bf2ef7
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests opentracing-rs-jaeger
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6212d50ca63d2ee99b7105b445dcdf3a45a678441a5d2612e3474bd9f5987ed1"`
[INFO] running `"docker" "rm" "-f" "6212d50ca63d2ee99b7105b445dcdf3a45a678441a5d2612e3474bd9f5987ed1"`
[INFO] [stdout] 6212d50ca63d2ee99b7105b445dcdf3a45a678441a5d2612e3474bd9f5987ed1