[INFO] fetching crate opentracing-rs-jaeger 0.1.0...
[INFO] testing opentracing-rs-jaeger-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate opentracing-rs-jaeger 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate opentracing-rs-jaeger 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate opentracing-rs-jaeger 0.1.0
[INFO] finished tweaking crates.io crate opentracing-rs-jaeger 0.1.0
[INFO] tweaked toml for crates.io crate opentracing-rs-jaeger 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93ee2a6530fe0edbee5b714368636ee5ac103b2fe63151f93d09f5dc3c0bc2b8
[INFO] running `Command { std: "docker" "start" "-a" "93ee2a6530fe0edbee5b714368636ee5ac103b2fe63151f93d09f5dc3c0bc2b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93ee2a6530fe0edbee5b714368636ee5ac103b2fe63151f93d09f5dc3c0bc2b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93ee2a6530fe0edbee5b714368636ee5ac103b2fe63151f93d09f5dc3c0bc2b8", kill_on_drop: false }`
[INFO] [stdout] 93ee2a6530fe0edbee5b714368636ee5ac103b2fe63151f93d09f5dc3c0bc2b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfce4dbfbce427fcc4eaddb740e2aba7e46874358d7c317a9d0fb1e53e8698dd
[INFO] running `Command { std: "docker" "start" "-a" "dfce4dbfbce427fcc4eaddb740e2aba7e46874358d7c317a9d0fb1e53e8698dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling opentracing-rs-core v0.1.0
[INFO] [stderr]    Compiling opentracing-rs-jaeger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reporter.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |     reporters: Vec<Box<Reporter>>,
[INFO] [stdout]    |                        ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reporter.rs:57:50
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn add_reporter(&mut self, reporter: Box<Reporter>) {
[INFO] [stdout]    |                                                  ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/tracer.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn serve(&mut self) -> (impl Future<Item = (), Error = ()>) {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/reporter.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn report(&mut self, span: &Span) {}
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/reporter.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_reporter`
[INFO] [stdout]   --> src/reporter.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn add_reporter(&mut self, reporter: Box<Reporter>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SAMPLER_PARAM_TAG_KEY`
[INFO] [stdout]  --> src/sampler.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const SAMPLER_PARAM_TAG_KEY: &str = "";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sampling_rate`
[INFO] [stdout]   --> src/sampler.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     sampling_rate: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `service_name`
[INFO] [stdout]   --> src/tracer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     service_name: Cow<'static, str>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sampler`
[INFO] [stdout]   --> src/tracer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     sampler: S,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.29s
[INFO] running `Command { std: "docker" "inspect" "dfce4dbfbce427fcc4eaddb740e2aba7e46874358d7c317a9d0fb1e53e8698dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfce4dbfbce427fcc4eaddb740e2aba7e46874358d7c317a9d0fb1e53e8698dd", kill_on_drop: false }`
[INFO] [stdout] dfce4dbfbce427fcc4eaddb740e2aba7e46874358d7c317a9d0fb1e53e8698dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94b678ab1b48ab9ac6dc53f49834062c0b18c5a565d92fa0936d9579c2d2385c
[INFO] running `Command { std: "docker" "start" "-a" "94b678ab1b48ab9ac6dc53f49834062c0b18c5a565d92fa0936d9579c2d2385c", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reporter.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |     reporters: Vec<Box<Reporter>>,
[INFO] [stdout]    |                        ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reporter.rs:57:50
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn add_reporter(&mut self, reporter: Box<Reporter>) {
[INFO] [stdout]    |                                                  ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/tracer.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn serve(&mut self) -> (impl Future<Item = (), Error = ()>) {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/reporter.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn report(&mut self, span: &Span) {}
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/reporter.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_reporter`
[INFO] [stdout]   --> src/reporter.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn add_reporter(&mut self, reporter: Box<Reporter>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SAMPLER_PARAM_TAG_KEY`
[INFO] [stdout]  --> src/sampler.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const SAMPLER_PARAM_TAG_KEY: &str = "";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling opentracing-rs-jaeger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `sampling_rate`
[INFO] [stdout]   --> src/sampler.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     sampling_rate: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `service_name`
[INFO] [stdout]   --> src/tracer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     service_name: Cow<'static, str>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sampler`
[INFO] [stdout]   --> src/tracer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     sampler: S,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reporter.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |     reporters: Vec<Box<Reporter>>,
[INFO] [stdout]    |                        ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reporter.rs:57:50
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn add_reporter(&mut self, reporter: Box<Reporter>) {
[INFO] [stdout]    |                                                  ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/tracer.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn serve(&mut self) -> (impl Future<Item = (), Error = ()>) {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/reporter.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn report(&mut self, span: &Span) {}
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/reporter.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_reporter`
[INFO] [stdout]   --> src/reporter.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn add_reporter(&mut self, reporter: Box<Reporter>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SAMPLER_PARAM_TAG_KEY`
[INFO] [stdout]  --> src/sampler.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const SAMPLER_PARAM_TAG_KEY: &str = "";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sampling_rate`
[INFO] [stdout]   --> src/sampler.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     sampling_rate: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `service_name`
[INFO] [stdout]   --> src/tracer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     service_name: Cow<'static, str>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sampler`
[INFO] [stdout]   --> src/tracer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     sampler: S,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.96s
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "94b678ab1b48ab9ac6dc53f49834062c0b18c5a565d92fa0936d9579c2d2385c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94b678ab1b48ab9ac6dc53f49834062c0b18c5a565d92fa0936d9579c2d2385c", kill_on_drop: false }`
[INFO] [stdout] 94b678ab1b48ab9ac6dc53f49834062c0b18c5a565d92fa0936d9579c2d2385c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1b72c634827d59afb1100d8e57eeef4811d506b541d738cdd07da7c4d6106524
[INFO] running `Command { std: "docker" "start" "-a" "1b72c634827d59afb1100d8e57eeef4811d506b541d738cdd07da7c4d6106524", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/reporter.rs:47:24
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 47 |     reporters: Vec<Box<Reporter>>,
[INFO] [stdout] 
[INFO] [stderr]    |                        ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reporter.rs:57:50
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn add_reporter(&mut self, reporter: Box<Reporter>) {
[INFO] [stderr]    |                                                  ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/tracer.rs:39:32
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn serve(&mut self) -> (impl Future<Item = (), Error = ()>) {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[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: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/reporter.rs:51:12
[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: associated function is never used: `add_reporter`
[INFO] [stderr]   --> src/reporter.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn add_reporter(&mut self, reporter: Box<Reporter>) {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant 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 read: `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 read: `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 read: `sampler`
[INFO] [stderr]   --> src/tracer.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     sampler: S,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `opentracing-rs-jaeger` (lib) generated 10 warnings
[INFO] [stderr] warning: `opentracing-rs-jaeger` (lib test) generated 10 warnings (10 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/opentracing_rs_jaeger-90e9036c6187662d)
[INFO] [stderr]    Doc-tests opentracing-rs-jaeger
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/tracer.rs:39:32
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn serve(&mut self) -> (impl Future<Item = (), Error = ()>) {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] running 0 tests
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b72c634827d59afb1100d8e57eeef4811d506b541d738cdd07da7c4d6106524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b72c634827d59afb1100d8e57eeef4811d506b541d738cdd07da7c4d6106524", kill_on_drop: false }`
[INFO] [stdout] 1b72c634827d59afb1100d8e57eeef4811d506b541d738cdd07da7c4d6106524