[INFO] cloning repository https://github.com/ROki1988/ot-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ROki1988/ot-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FROki1988%2Fot-rs", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5bd50eed44bd5b2206226737081ec3d26abc92d
[INFO] checking ROki1988/ot-rs against master#6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd for pr-153721
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FROki1988%2Fot-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ROki1988/ot-rs
[INFO] finished tweaking git repo https://github.com/ROki1988/ot-rs
[INFO] tweaked toml for git repo https://github.com/ROki1988/ot-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ROki1988/ot-rs on toolchain 6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd
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[INFO] [stdout] warning: fields `name`, `description`, `unit`, and `type_` are never read
[INFO] [stdout]  --> src/api/registry.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Variable {
[INFO] [stdout]   |            -------- fields in this struct
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     description: String,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 6 |     unit: Unit,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     // FIXME: modify name to type
[INFO] [stdout] 8 |     type_: String,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Tracer` is never used
[INFO] [stdout]   --> src/api/trace.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | trait Tracer<'a, S>
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `SERVER`, `CLIENT`, `PRODUCER`, and `CONSUMER` are never constructed
[INFO] [stdout]   --> src/api/trace.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | enum SpanKind {
[INFO] [stdout]    |      -------- variants in this enum
[INFO] [stdout] 30 |     INTERNAL,
[INFO] [stdout] 31 |     SERVER,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 32 |     CLIENT,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 33 |     PRODUCER,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 34 |     CONSUMER,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Span` is never used
[INFO] [stdout]   --> src/api/trace.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 | trait Span<'a>: Sized + Sync {
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `new_with_attributes` are never used
[INFO] [stdout]   --> src/api/trace.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl Event {
[INFO] [stdout]    | ---------- associated functions in this implementation
[INFO] [stdout] 70 |     fn new(name: &str) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn new_with_attributes(name: &str, attributes: HashMap<String, Value>) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `timestamp`, `name`, and `attributes` are never read
[INFO] [stdout]   --> src/api/trace.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub struct TimedEvent {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 84 |     timestamp: Timestamp,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 85 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 86 |     attributes: HashMap<String, Value>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TimedEvent` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/api/trace.rs:105:29
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub(crate) struct Timestamp(SystemTime);
[INFO] [stdout]     |                   --------- ^^^^^^^^^^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Timestamp` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `as_millis`, `as_micros`, `as_nanos`, `duration_since_as_millis`, `duration_since_as_micros`, and `duration_since_as_nanos` are never used
[INFO] [stdout]    --> src/api/trace.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 107 | impl Timestamp {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 111 |     fn as_millis(&self) -> u128 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     fn as_micros(&self) -> u128 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     fn as_nanos(&self) -> u128 {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |     fn duration_since_as_millis(&self, other: &Self) -> Option<u128> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     fn duration_since_as_micros(&self, other: &Self) -> Option<u128> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 147 |     fn duration_since_as_nanos(&self, other: &Self) -> Option<u128> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/api/trace/in_memory.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl<'a, 'b> InMemorySpan<'a, 'b> {
[INFO] [stdout]    | --------------------------------- methods in this implementation
[INFO] [stdout] 27 |     fn span_duration_as_millis(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn span_duration_as_micros(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn span_duration_as_nanos(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn get_links_iter(&self) -> impl Iterator<Item = &Link> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn get_events_iter(&self) -> impl Iterator<Item = &TimedEvent> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     fn get_attributes_iter(&self) -> impl Iterator<Item = (&String, &Value)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn get_start_epoch_time_as_millis(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn get_finish_epoch_time_as_millis(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     fn get_start_epoch_time_as_micros(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn get_finish_epoch_time_as_micros(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     fn get_start_epoch_time_as_nanos(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn get_finish_epoch_time_as_nanos(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InMemoryTracer` is never constructed
[INFO] [stdout]    --> src/api/trace/in_memory.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 | struct InMemoryTracer<'a, 'b> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `current_trace` is never used
[INFO] [stdout]    --> src/api/trace/in_memory.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 127 | impl<'a, 'b> InMemoryTracer<'a, 'b> {
[INFO] [stdout]     | ----------------------------------- method in this implementation
[INFO] [stdout] 128 |     fn current_trace(&self) -> Option<&TraceContext> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `variable` is never read
[INFO] [stdout]  --> src/api/trace/key.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Key {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 4 |     variable: registry::Variable,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `value` are never read
[INFO] [stdout]   --> src/api/trace/key.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct KeyValue {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 17 |     key: Key,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 18 |     value: Value,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Scope` is never constructed
[INFO] [stdout]  --> src/api/trace/scope.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Scope<F, S> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `run` are never used
[INFO] [stdout]   --> src/api/trace/scope.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | / impl<'a, F, U, S> Scope<F, S>
[INFO] [stdout]  9 | | where
[INFO] [stdout] 10 | |     F: Fn() -> U,
[INFO] [stdout] 11 | |     S: Span<'a>,
[INFO] [stdout]    | |________________- associated items in this implementation
[INFO] [stdout] 12 |   {
[INFO] [stdout] 13 |       fn new(span: S, f: F) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |       fn run(&mut self) -> U {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `trace_id`, `span_id`, `trace_option`, and `trace_state` are never read
[INFO] [stdout]   --> src/api/trace/span_data.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct ImmutableSpanContext {
[INFO] [stdout]    |        -------------------- fields in this struct
[INFO] [stdout] 12 |     trace_id: TraceId,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 13 |     span_id: SpanId,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 14 |     trace_option: TraceOption,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 15 |     trace_state: TraceState,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `span_context` and `attributes` are never read
[INFO] [stdout]   --> src/api/trace/span_data.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct ImmutableLink {
[INFO] [stdout]    |        ------------- fields in this struct
[INFO] [stdout] 41 |     span_context: ImmutableSpanContext,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 42 |     attributes: HashMap<String, Value>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/api/trace/span_data.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct SpanData {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 65 |     // should not has lifetime, maybe
[INFO] [stdout] 66 |     context: ImmutableSpanContext,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 67 |     resource: Resource,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 68 |     parent_span_id: Option<SpanId>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 69 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 70 |     kind: SpanKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 71 |     start_time: Timestamp,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 72 |     end_time: Timestamp,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 73 |     attributes: HashMap<String, Value>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 74 |     events: Vec<TimedEvent>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 75 |     links: Vec<ImmutableLink>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 76 |     status: Status,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_str` is never used
[INFO] [stdout]  --> src/api/unit.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Unit {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 8 |     fn to_str(&self) -> &str {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/api/trace.rs:40:16
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn context(&self) -> &SpanContext;
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^
[INFO] [stdout]    |                |         ||
[INFO] [stdout]    |                |         |the same lifetime is hidden here
[INFO] [stdout]    |                |         the same lifetime is elided here
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn context(&self) -> &SpanContext<'_>;
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/api/trace/in_memory.rs:43:23
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn get_links_iter(&self) -> impl Iterator<Item = &Link> {
[INFO] [stdout]    |                       ^^^^^                          ^^^^^
[INFO] [stdout]    |                       |                              ||
[INFO] [stdout]    |                       |                              |the same lifetime is hidden here
[INFO] [stdout]    |                       |                              the same lifetime is elided here
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn get_links_iter(&self) -> impl Iterator<Item = &Link<'_>> {
[INFO] [stdout]    |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/api/trace/in_memory.rs:84:16
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn context(&self) -> &SpanContext {
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^
[INFO] [stdout]    |                |         ||
[INFO] [stdout]    |                |         |the same lifetime is hidden here
[INFO] [stdout]    |                |         the same lifetime is elided here
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn context(&self) -> &SpanContext<'_> {
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling headers-derive v0.1.1
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking headers v0.2.1
[INFO] [stderr]     Checking proptest v0.9.4
[INFO] [stderr]     Checking warp v0.1.20
[INFO] [stdout] warning: fields `name`, `description`, `unit`, and `type_` are never read
[INFO] [stdout]  --> src/api/registry.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Variable {
[INFO] [stdout]   |            -------- fields in this struct
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     description: String,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 6 |     unit: Unit,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     // FIXME: modify name to type
[INFO] [stdout] 8 |     type_: String,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Tracer` is never used
[INFO] [stdout]   --> src/api/trace.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | trait Tracer<'a, S>
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `SERVER`, `CLIENT`, `PRODUCER`, and `CONSUMER` are never constructed
[INFO] [stdout]   --> src/api/trace.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | enum SpanKind {
[INFO] [stdout]    |      -------- variants in this enum
[INFO] [stdout] 30 |     INTERNAL,
[INFO] [stdout] 31 |     SERVER,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 32 |     CLIENT,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 33 |     PRODUCER,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 34 |     CONSUMER,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/api/trace.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | trait Span<'a>: Sized + Sync {
[INFO] [stdout]    |       ---- methods in this trait
[INFO] [stdout] 38 |     fn start(&mut self);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 39 |
[INFO] [stdout] 40 |     fn context(&self) -> &SpanContext;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 41 |
[INFO] [stdout] 42 |     fn resource(&self) -> &Resource;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 43 |
[INFO] [stdout] 44 |     fn is_recording_events(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 45 |
[INFO] [stdout] 46 |     fn add_link(&mut self, link: Link<'a>);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 47 |
[INFO] [stdout] 48 |     fn add_event(&mut self, event: Event);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 49 |
[INFO] [stdout] 50 |     fn set_attribute(&mut self, key: String, value: Value);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 51 |
[INFO] [stdout] 52 |     fn update_name(&mut self, name: &str);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 53 |
[INFO] [stdout] 54 |     fn set_status(&mut self, next: Status);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `new_with_attributes` are never used
[INFO] [stdout]   --> src/api/trace.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl Event {
[INFO] [stdout]    | ---------- associated functions in this implementation
[INFO] [stdout] 70 |     fn new(name: &str) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn new_with_attributes(name: &str, attributes: HashMap<String, Value>) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `timestamp`, `name`, and `attributes` are never read
[INFO] [stdout]   --> src/api/trace.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub struct TimedEvent {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 84 |     timestamp: Timestamp,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 85 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 86 |     attributes: HashMap<String, Value>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TimedEvent` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/api/trace/in_memory.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl<'a, 'b> InMemorySpan<'a, 'b> {
[INFO] [stdout]    | --------------------------------- methods in this implementation
[INFO] [stdout] 27 |     fn span_duration_as_millis(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn span_duration_as_micros(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn span_duration_as_nanos(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn get_links_iter(&self) -> impl Iterator<Item = &Link> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn get_events_iter(&self) -> impl Iterator<Item = &TimedEvent> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     fn get_attributes_iter(&self) -> impl Iterator<Item = (&String, &Value)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn get_start_epoch_time_as_millis(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn get_finish_epoch_time_as_millis(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     fn get_start_epoch_time_as_micros(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn get_finish_epoch_time_as_micros(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     fn get_start_epoch_time_as_nanos(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn get_finish_epoch_time_as_nanos(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InMemoryTracer` is never constructed
[INFO] [stdout]    --> src/api/trace/in_memory.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 | struct InMemoryTracer<'a, 'b> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `current_trace` is never used
[INFO] [stdout]    --> src/api/trace/in_memory.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 127 | impl<'a, 'b> InMemoryTracer<'a, 'b> {
[INFO] [stdout]     | ----------------------------------- method in this implementation
[INFO] [stdout] 128 |     fn current_trace(&self) -> Option<&TraceContext> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `variable` is never read
[INFO] [stdout]  --> src/api/trace/key.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Key {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 4 |     variable: registry::Variable,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `value` are never read
[INFO] [stdout]   --> src/api/trace/key.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct KeyValue {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 17 |     key: Key,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 18 |     value: Value,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `trace_id`, `span_id`, `trace_option`, and `trace_state` are never read
[INFO] [stdout]   --> src/api/trace/span_data.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct ImmutableSpanContext {
[INFO] [stdout]    |        -------------------- fields in this struct
[INFO] [stdout] 12 |     trace_id: TraceId,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 13 |     span_id: SpanId,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 14 |     trace_option: TraceOption,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 15 |     trace_state: TraceState,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `span_context` and `attributes` are never read
[INFO] [stdout]   --> src/api/trace/span_data.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct ImmutableLink {
[INFO] [stdout]    |        ------------- fields in this struct
[INFO] [stdout] 41 |     span_context: ImmutableSpanContext,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 42 |     attributes: HashMap<String, Value>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/api/trace/span_data.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct SpanData {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 65 |     // should not has lifetime, maybe
[INFO] [stdout] 66 |     context: ImmutableSpanContext,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 67 |     resource: Resource,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 68 |     parent_span_id: Option<SpanId>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 69 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 70 |     kind: SpanKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 71 |     start_time: Timestamp,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 72 |     end_time: Timestamp,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 73 |     attributes: HashMap<String, Value>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 74 |     events: Vec<TimedEvent>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 75 |     links: Vec<ImmutableLink>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 76 |     status: Status,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_str` is never used
[INFO] [stdout]  --> src/api/unit.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Unit {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 8 |     fn to_str(&self) -> &str {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/api/trace.rs:40:16
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn context(&self) -> &SpanContext;
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^
[INFO] [stdout]    |                |         ||
[INFO] [stdout]    |                |         |the same lifetime is hidden here
[INFO] [stdout]    |                |         the same lifetime is elided here
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn context(&self) -> &SpanContext<'_>;
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/api/trace/in_memory.rs:43:23
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn get_links_iter(&self) -> impl Iterator<Item = &Link> {
[INFO] [stdout]    |                       ^^^^^                          ^^^^^
[INFO] [stdout]    |                       |                              ||
[INFO] [stdout]    |                       |                              |the same lifetime is hidden here
[INFO] [stdout]    |                       |                              the same lifetime is elided here
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn get_links_iter(&self) -> impl Iterator<Item = &Link<'_>> {
[INFO] [stdout]    |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/api/trace/in_memory.rs:84:16
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn context(&self) -> &SpanContext {
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^
[INFO] [stdout]    |                |         ||
[INFO] [stdout]    |                |         |the same lifetime is hidden here
[INFO] [stdout]    |                |         the same lifetime is elided here
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn context(&self) -> &SpanContext<'_> {
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.37s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.16.1, warp v0.1.20
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "947a6da5ff2a64eb5777e1a685522b08aa981b39b7c258ea9bbab4394e4a2787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "947a6da5ff2a64eb5777e1a685522b08aa981b39b7c258ea9bbab4394e4a2787", kill_on_drop: false }`
[INFO] [stdout] 947a6da5ff2a64eb5777e1a685522b08aa981b39b7c258ea9bbab4394e4a2787
