[INFO] fetching crate opentracing-rs-jaeger 0.1.0... [INFO] checking opentracing-rs-jaeger-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] extracting crate opentracing-rs-jaeger 0.1.0 into /workspace/builds/worker-5-tc1/source [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-5-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate opentracing-rs-jaeger 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 70 packages to latest compatible versions [INFO] [stderr] Adding futures v0.1.31 (available: v0.3.31) [INFO] [stderr] Adding rand v0.6.5 (available: v0.9.2) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded opentracing-rs-core v0.1.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cd455eb3a66072e2bc22ee1cc225eb7d225a3ca1ef0ca1d681d15539614fcede [INFO] running `Command { std: "docker" "start" "-a" "cd455eb3a66072e2bc22ee1cc225eb7d225a3ca1ef0ca1d681d15539614fcede", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cd455eb3a66072e2bc22ee1cc225eb7d225a3ca1ef0ca1d681d15539614fcede", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd455eb3a66072e2bc22ee1cc225eb7d225a3ca1ef0ca1d681d15539614fcede", kill_on_drop: false }` [INFO] [stdout] cd455eb3a66072e2bc22ee1cc225eb7d225a3ca1ef0ca1d681d15539614fcede [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8bbd05219566eaff830b1a8e74795fe732ab99866e6895cad81f21b857db2c36 [INFO] running `Command { std: "docker" "start" "-a" "8bbd05219566eaff830b1a8e74795fe732ab99866e6895cad81f21b857db2c36", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.5.0 [INFO] [stderr] Compiling libc v0.2.175 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking lazy_static v1.5.0 [INFO] [stderr] Checking futures v0.1.31 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking log v0.4.27 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking slab v0.4.11 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking smallvec v0.6.14 [INFO] [stderr] Compiling parking_lot_core v0.6.3 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking num_cpus v1.17.0 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking crossbeam-deque v0.7.4 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking tokio-executor v0.1.10 [INFO] [stderr] Checking tokio-sync v0.1.8 [INFO] [stderr] Checking tokio-io v0.1.13 [INFO] [stderr] Checking tokio-threadpool v0.1.18 [INFO] [stderr] Checking tokio-timer v0.2.13 [INFO] [stderr] Checking tokio-current-thread v0.1.7 [INFO] [stderr] Checking tokio-codec v0.1.2 [INFO] [stderr] Checking tokio-fs v0.1.7 [INFO] [stderr] Checking tokio-reactor v0.1.12 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Checking tokio-uds v0.2.7 [INFO] [stderr] Checking tokio-udp v0.1.6 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking opentracing-rs-core v0.1.0 [INFO] [stderr] Checking opentracing-rs-jaeger v0.1.0 (/opt/rustwide/workdir) [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) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 39 - pub fn serve(&mut self) -> (impl Future) { [INFO] [stdout] 39 + pub fn serve(&mut self) -> impl Future { [INFO] [stdout] | [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>, [INFO] [stdout] | ^^^^^^^^ [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 [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 47 | reporters: Vec>, [INFO] [stdout] | +++ [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) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 39 - pub fn serve(&mut self) -> (impl Future) { [INFO] [stdout] 39 + pub fn serve(&mut self) -> impl Future { [INFO] [stdout] | [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>, [INFO] [stdout] | ^^^^^^^^ [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 [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 47 | reporters: Vec>, [INFO] [stdout] | +++ [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) { [INFO] [stdout] | ^^^^^^^^ [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 [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 57 | pub fn add_reporter(&mut self, reporter: Box) { [INFO] [stdout] | +++ [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) { [INFO] [stdout] | ^^^^^^^^ [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 [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 57 | pub fn add_reporter(&mut self, reporter: Box) { [INFO] [stdout] | +++ [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: struct `CompositeReporter` is never constructed [INFO] [stdout] --> src/reporter.rs:46:12 [INFO] [stdout] | [INFO] [stdout] 46 | pub struct CompositeReporter { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `add_reporter` are never used [INFO] [stdout] --> src/reporter.rs:51:12 [INFO] [stdout] | [INFO] [stdout] 50 | impl CompositeReporter { [INFO] [stdout] | ---------------------- associated items in this implementation [INFO] [stdout] 51 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 57 | pub fn add_reporter(&mut self, reporter: Box) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `SAMPLER_PARAM_TAG_KEY` is never used [INFO] [stdout] --> src/sampler.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | const SAMPLER_PARAM_TAG_KEY: &str = ""; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `sampling_rate` is never read [INFO] [stdout] --> src/sampler.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 34 | pub struct ProbabilisticSampler { [INFO] [stdout] | -------------------- field in this struct [INFO] [stdout] 35 | sampling_rate: f64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `high` is never read [INFO] [stdout] --> src/span.rs:13:16 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct TraceId { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 12 | pub(crate) low: u64, [INFO] [stdout] 13 | pub(crate) high: u64, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TraceId` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `span_id` is never read [INFO] [stdout] --> src/span.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct SpanState { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 27 | trace_id: TraceId, [INFO] [stdout] 28 | span_id: u64, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SpanState` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `service_name` and `sampler` are never read [INFO] [stdout] --> src/tracer.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Tracer [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] ... [INFO] [stdout] 12 | service_name: Cow<'static, str>, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 13 | sampler: S, [INFO] [stdout] | ^^^^^^^ [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: struct `CompositeReporter` is never constructed [INFO] [stdout] --> src/reporter.rs:46:12 [INFO] [stdout] | [INFO] [stdout] 46 | pub struct CompositeReporter { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `add_reporter` are never used [INFO] [stdout] --> src/reporter.rs:51:12 [INFO] [stdout] | [INFO] [stdout] 50 | impl CompositeReporter { [INFO] [stdout] | ---------------------- associated items in this implementation [INFO] [stdout] 51 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 57 | pub fn add_reporter(&mut self, reporter: Box) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `SAMPLER_PARAM_TAG_KEY` is never used [INFO] [stdout] --> src/sampler.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | const SAMPLER_PARAM_TAG_KEY: &str = ""; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `sampling_rate` is never read [INFO] [stdout] --> src/sampler.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 34 | pub struct ProbabilisticSampler { [INFO] [stdout] | -------------------- field in this struct [INFO] [stdout] 35 | sampling_rate: f64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `high` is never read [INFO] [stdout] --> src/span.rs:13:16 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct TraceId { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 12 | pub(crate) low: u64, [INFO] [stdout] 13 | pub(crate) high: u64, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TraceId` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `span_id` is never read [INFO] [stdout] --> src/span.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct SpanState { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 27 | trace_id: TraceId, [INFO] [stdout] 28 | span_id: u64, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SpanState` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `service_name` and `sampler` are never read [INFO] [stdout] --> src/tracer.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Tracer [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] ... [INFO] [stdout] 12 | service_name: Cow<'static, str>, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 13 | sampler: S, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.67s [INFO] running `Command { std: "docker" "inspect" "8bbd05219566eaff830b1a8e74795fe732ab99866e6895cad81f21b857db2c36", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8bbd05219566eaff830b1a8e74795fe732ab99866e6895cad81f21b857db2c36", kill_on_drop: false }` [INFO] [stdout] 8bbd05219566eaff830b1a8e74795fe732ab99866e6895cad81f21b857db2c36