[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 }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FROki1988%2Fot-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5bd50eed44bd5b2206226737081ec3d26abc92d
[INFO] testing ROki1988/ot-rs against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FROki1988%2Fot-rs" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ROki1988/ot-rs on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ROki1988/ot-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 964e51bccb97907f1af2ada1ae97b769463df1bf7defb4d2d4c04e7174392ba0
[INFO] running `Command { std: "docker" "start" "-a" "964e51bccb97907f1af2ada1ae97b769463df1bf7defb4d2d4c04e7174392ba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "964e51bccb97907f1af2ada1ae97b769463df1bf7defb4d2d4c04e7174392ba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "964e51bccb97907f1af2ada1ae97b769463df1bf7defb4d2d4c04e7174392ba0", kill_on_drop: false }`
[INFO] [stdout] 964e51bccb97907f1af2ada1ae97b769463df1bf7defb4d2d4c04e7174392ba0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48e531bb6be6a5894c782ef0aefcb7e1f326f104ef2653a4f35cc9b6a4e00cd5
[INFO] running `Command { std: "docker" "start" "-a" "48e531bb6be6a5894c782ef0aefcb7e1f326f104ef2653a4f35cc9b6a4e00cd5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling getrandom v0.1.9
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling ot-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/api/registry.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `description`
[INFO] [stdout]  --> src/api/registry.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     description: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `unit`
[INFO] [stdout]  --> src/api/registry.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     unit: Unit,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `type_`
[INFO] [stdout]  --> src/api/registry.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     type_: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span_duration_as_millis`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn span_duration_as_millis(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span_duration_as_micros`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn span_duration_as_micros(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span_duration_as_nanos`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn span_duration_as_nanos(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_links_iter`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn get_links_iter(&self) -> impl Iterator<Item = &Link> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_events_iter`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn get_events_iter(&self) -> impl Iterator<Item = &TimedEvent> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_attributes_iter`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_attributes_iter(&self) -> impl Iterator<Item = (&String, &Value)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_start_epoch_time_as_millis`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn get_start_epoch_time_as_millis(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_finish_epoch_time_as_millis`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn get_finish_epoch_time_as_millis(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_start_epoch_time_as_micros`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn get_start_epoch_time_as_micros(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_finish_epoch_time_as_micros`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn get_finish_epoch_time_as_micros(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_start_epoch_time_as_nanos`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn get_start_epoch_time_as_nanos(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_finish_epoch_time_as_nanos`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn get_finish_epoch_time_as_nanos(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `current_trace`
[INFO] [stdout]    --> src/api/trace/in_memory.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 |     current_trace: Option<TraceContext>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `resource`
[INFO] [stdout]    --> src/api/trace/in_memory.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     resource: Resource,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `current_trace`
[INFO] [stdout]    --> src/api/trace/in_memory.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn current_trace(&self) -> Option<&TraceContext> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `variable`
[INFO] [stdout]  --> src/api/trace/key.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     variable: registry::Variable,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `key`
[INFO] [stdout]   --> src/api/trace/key.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     key: Key,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/api/trace/key.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     value: Value,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Scope`
[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 function is never used: `new`
[INFO] [stdout]   --> src/api/trace/scope.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn new(span: S, f: F) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/api/trace/scope.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn run(&mut self) -> U {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trace_id`
[INFO] [stdout]   --> src/api/trace/span_data.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     trace_id: TraceId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `span_id`
[INFO] [stdout]   --> src/api/trace/span_data.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     span_id: SpanId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trace_option`
[INFO] [stdout]   --> src/api/trace/span_data.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     trace_option: TraceOption,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trace_state`
[INFO] [stdout]   --> src/api/trace/span_data.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     trace_state: TraceState,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `span_context`
[INFO] [stdout]   --> src/api/trace/span_data.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     span_context: ImmutableSpanContext,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attributes`
[INFO] [stdout]   --> src/api/trace/span_data.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     attributes: HashMap<String, Value>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `context`
[INFO] [stdout]   --> src/api/trace/span_data.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     context: ImmutableSpanContext,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `resource`
[INFO] [stdout]   --> src/api/trace/span_data.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     resource: Resource,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent_span_id`
[INFO] [stdout]   --> src/api/trace/span_data.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     parent_span_id: Option<SpanId>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/api/trace/span_data.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `kind`
[INFO] [stdout]   --> src/api/trace/span_data.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     kind: SpanKind,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `start_time`
[INFO] [stdout]   --> src/api/trace/span_data.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     start_time: Timestamp,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end_time`
[INFO] [stdout]   --> src/api/trace/span_data.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     end_time: Timestamp,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attributes`
[INFO] [stdout]   --> src/api/trace/span_data.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     attributes: HashMap<String, Value>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `events`
[INFO] [stdout]   --> src/api/trace/span_data.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     events: Vec<TimedEvent>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `links`
[INFO] [stdout]   --> src/api/trace/span_data.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     links: Vec<ImmutableLink>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `status`
[INFO] [stdout]   --> src/api/trace/span_data.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     status: Status,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SERVER`
[INFO] [stdout]   --> src/api/trace.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     SERVER,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CLIENT`
[INFO] [stdout]   --> src/api/trace.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     CLIENT,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PRODUCER`
[INFO] [stdout]   --> src/api/trace.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     PRODUCER,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CONSUMER`
[INFO] [stdout]   --> src/api/trace.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     CONSUMER,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/api/trace.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn new(name: &str) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_attributes`
[INFO] [stdout]   --> src/api/trace.rs:74:8
[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: associated function is never used: `as_millis`
[INFO] [stdout]    --> src/api/trace.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn as_millis(&self) -> u128 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_micros`
[INFO] [stdout]    --> src/api/trace.rs:118:8
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn as_micros(&self) -> u128 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_nanos`
[INFO] [stdout]    --> src/api/trace.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn as_nanos(&self) -> u128 {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `duration_since_as_millis`
[INFO] [stdout]    --> src/api/trace.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn duration_since_as_millis(&self, other: &Self) -> Option<u128> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `duration_since_as_micros`
[INFO] [stdout]    --> src/api/trace.rs:140:8
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn duration_since_as_micros(&self, other: &Self) -> Option<u128> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `duration_since_as_nanos`
[INFO] [stdout]    --> src/api/trace.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn duration_since_as_nanos(&self, other: &Self) -> Option<u128> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_str`
[INFO] [stdout]  --> src/api/unit.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn to_str(&self) -> &str {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 55 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.28s
[INFO] running `Command { std: "docker" "inspect" "48e531bb6be6a5894c782ef0aefcb7e1f326f104ef2653a4f35cc9b6a4e00cd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48e531bb6be6a5894c782ef0aefcb7e1f326f104ef2653a4f35cc9b6a4e00cd5", kill_on_drop: false }`
[INFO] [stdout] 48e531bb6be6a5894c782ef0aefcb7e1f326f104ef2653a4f35cc9b6a4e00cd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6819fabf446f7017998c95517a604539105e3834a815f4d35fd457f07546c1a
[INFO] running `Command { std: "docker" "start" "-a" "b6819fabf446f7017998c95517a604539105e3834a815f4d35fd457f07546c1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling futures v0.1.28
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling syn v1.0.2
[INFO] [stderr]    Compiling safemem v0.3.2
[INFO] [stderr]    Compiling cargo-husky v1.4.0
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling urlencoding v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling unicase v2.4.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling http v0.1.18
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling input_buffer v0.2.0
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/api/registry.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `description`
[INFO] [stdout]  --> src/api/registry.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     description: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `unit`
[INFO] [stdout]  --> src/api/registry.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     unit: Unit,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `type_`
[INFO] [stdout]  --> src/api/registry.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     type_: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span_duration_as_millis`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn span_duration_as_millis(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span_duration_as_micros`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn span_duration_as_micros(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span_duration_as_nanos`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn span_duration_as_nanos(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_links_iter`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn get_links_iter(&self) -> impl Iterator<Item = &Link> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_events_iter`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn get_events_iter(&self) -> impl Iterator<Item = &TimedEvent> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_attributes_iter`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_attributes_iter(&self) -> impl Iterator<Item = (&String, &Value)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_start_epoch_time_as_millis`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn get_start_epoch_time_as_millis(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_finish_epoch_time_as_millis`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn get_finish_epoch_time_as_millis(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_start_epoch_time_as_micros`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn get_start_epoch_time_as_micros(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_finish_epoch_time_as_micros`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn get_finish_epoch_time_as_micros(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_start_epoch_time_as_nanos`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn get_start_epoch_time_as_nanos(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_finish_epoch_time_as_nanos`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn get_finish_epoch_time_as_nanos(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `current_trace`
[INFO] [stdout]    --> src/api/trace/in_memory.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 |     current_trace: Option<TraceContext>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `resource`
[INFO] [stdout]    --> src/api/trace/in_memory.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     resource: Resource,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `current_trace`
[INFO] [stdout]    --> src/api/trace/in_memory.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn current_trace(&self) -> Option<&TraceContext> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `variable`
[INFO] [stdout]  --> src/api/trace/key.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     variable: registry::Variable,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `key`
[INFO] [stdout]   --> src/api/trace/key.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     key: Key,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/api/trace/key.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     value: Value,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Scope`
[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 function is never used: `new`
[INFO] [stdout]   --> src/api/trace/scope.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn new(span: S, f: F) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/api/trace/scope.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn run(&mut self) -> U {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trace_id`
[INFO] [stdout]   --> src/api/trace/span_data.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     trace_id: TraceId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `span_id`
[INFO] [stdout]   --> src/api/trace/span_data.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     span_id: SpanId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trace_option`
[INFO] [stdout]   --> src/api/trace/span_data.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     trace_option: TraceOption,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trace_state`
[INFO] [stdout]   --> src/api/trace/span_data.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     trace_state: TraceState,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `span_context`
[INFO] [stdout]   --> src/api/trace/span_data.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     span_context: ImmutableSpanContext,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attributes`
[INFO] [stdout]   --> src/api/trace/span_data.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     attributes: HashMap<String, Value>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `context`
[INFO] [stdout]   --> src/api/trace/span_data.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     context: ImmutableSpanContext,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `resource`
[INFO] [stdout]   --> src/api/trace/span_data.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     resource: Resource,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent_span_id`
[INFO] [stdout]   --> src/api/trace/span_data.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     parent_span_id: Option<SpanId>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/api/trace/span_data.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `kind`
[INFO] [stdout]   --> src/api/trace/span_data.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     kind: SpanKind,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `start_time`
[INFO] [stdout]   --> src/api/trace/span_data.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     start_time: Timestamp,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end_time`
[INFO] [stdout]   --> src/api/trace/span_data.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     end_time: Timestamp,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attributes`
[INFO] [stdout]   --> src/api/trace/span_data.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     attributes: HashMap<String, Value>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `events`
[INFO] [stdout]   --> src/api/trace/span_data.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     events: Vec<TimedEvent>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `links`
[INFO] [stdout]   --> src/api/trace/span_data.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     links: Vec<ImmutableLink>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `status`
[INFO] [stdout]   --> src/api/trace/span_data.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     status: Status,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SERVER`
[INFO] [stdout]   --> src/api/trace.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     SERVER,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CLIENT`
[INFO] [stdout]   --> src/api/trace.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     CLIENT,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PRODUCER`
[INFO] [stdout]   --> src/api/trace.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     PRODUCER,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CONSUMER`
[INFO] [stdout]   --> src/api/trace.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     CONSUMER,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/api/trace.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn new(name: &str) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_attributes`
[INFO] [stdout]   --> src/api/trace.rs:74:8
[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: associated function is never used: `as_millis`
[INFO] [stdout]    --> src/api/trace.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn as_millis(&self) -> u128 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_micros`
[INFO] [stdout]    --> src/api/trace.rs:118:8
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn as_micros(&self) -> u128 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_nanos`
[INFO] [stdout]    --> src/api/trace.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn as_nanos(&self) -> u128 {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `duration_since_as_millis`
[INFO] [stdout]    --> src/api/trace.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn duration_since_as_millis(&self, other: &Self) -> Option<u128> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `duration_since_as_micros`
[INFO] [stdout]    --> src/api/trace.rs:140:8
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn duration_since_as_micros(&self, other: &Self) -> Option<u128> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `duration_since_as_nanos`
[INFO] [stdout]    --> src/api/trace.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn duration_since_as_nanos(&self, other: &Self) -> Option<u128> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_str`
[INFO] [stdout]  --> src/api/unit.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn to_str(&self) -> &str {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 55 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling buf_redux v0.8.4
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling sha-1 v0.8.1
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling mime v0.3.13
[INFO] [stderr]    Compiling quote v1.0.1
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling tokio-executor v0.1.8
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling tokio-sync v0.1.6
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling tokio-timer v0.2.11
[INFO] [stderr]    Compiling url v2.1.0
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling tokio-threadpool v0.1.15
[INFO] [stderr]    Compiling proptest v0.9.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling headers-core v0.1.1
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling tungstenite v0.9.1
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling multipart v0.16.1
[INFO] [stderr]    Compiling headers-derive v0.1.1
[INFO] [stderr]    Compiling headers v0.2.1
[INFO] [stderr]    Compiling warp v0.1.20
[INFO] [stderr]    Compiling ot-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/api/registry.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `description`
[INFO] [stdout]  --> src/api/registry.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     description: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `unit`
[INFO] [stdout]  --> src/api/registry.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     unit: Unit,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `type_`
[INFO] [stdout]  --> src/api/registry.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     type_: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span_duration_as_millis`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn span_duration_as_millis(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span_duration_as_micros`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn span_duration_as_micros(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span_duration_as_nanos`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn span_duration_as_nanos(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_links_iter`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn get_links_iter(&self) -> impl Iterator<Item = &Link> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_events_iter`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn get_events_iter(&self) -> impl Iterator<Item = &TimedEvent> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_attributes_iter`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_attributes_iter(&self) -> impl Iterator<Item = (&String, &Value)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_start_epoch_time_as_millis`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn get_start_epoch_time_as_millis(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_finish_epoch_time_as_millis`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn get_finish_epoch_time_as_millis(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_start_epoch_time_as_micros`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn get_start_epoch_time_as_micros(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_finish_epoch_time_as_micros`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn get_finish_epoch_time_as_micros(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_start_epoch_time_as_nanos`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn get_start_epoch_time_as_nanos(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_finish_epoch_time_as_nanos`
[INFO] [stdout]   --> src/api/trace/in_memory.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn get_finish_epoch_time_as_nanos(&self) -> Option<u128> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `current_trace`
[INFO] [stdout]    --> src/api/trace/in_memory.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 |     current_trace: Option<TraceContext>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `resource`
[INFO] [stdout]    --> src/api/trace/in_memory.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     resource: Resource,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `current_trace`
[INFO] [stdout]    --> src/api/trace/in_memory.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn current_trace(&self) -> Option<&TraceContext> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `variable`
[INFO] [stdout]  --> src/api/trace/key.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     variable: registry::Variable,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `key`
[INFO] [stdout]   --> src/api/trace/key.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     key: Key,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/api/trace/key.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     value: Value,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trace_id`
[INFO] [stdout]   --> src/api/trace/span_data.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     trace_id: TraceId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `span_id`
[INFO] [stdout]   --> src/api/trace/span_data.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     span_id: SpanId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trace_option`
[INFO] [stdout]   --> src/api/trace/span_data.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     trace_option: TraceOption,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trace_state`
[INFO] [stdout]   --> src/api/trace/span_data.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     trace_state: TraceState,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `span_context`
[INFO] [stdout]   --> src/api/trace/span_data.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     span_context: ImmutableSpanContext,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attributes`
[INFO] [stdout]   --> src/api/trace/span_data.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     attributes: HashMap<String, Value>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `context`
[INFO] [stdout]   --> src/api/trace/span_data.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     context: ImmutableSpanContext,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `resource`
[INFO] [stdout]   --> src/api/trace/span_data.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     resource: Resource,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent_span_id`
[INFO] [stdout]   --> src/api/trace/span_data.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     parent_span_id: Option<SpanId>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/api/trace/span_data.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `kind`
[INFO] [stdout]   --> src/api/trace/span_data.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     kind: SpanKind,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `start_time`
[INFO] [stdout]   --> src/api/trace/span_data.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     start_time: Timestamp,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end_time`
[INFO] [stdout]   --> src/api/trace/span_data.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     end_time: Timestamp,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attributes`
[INFO] [stdout]   --> src/api/trace/span_data.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     attributes: HashMap<String, Value>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `events`
[INFO] [stdout]   --> src/api/trace/span_data.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     events: Vec<TimedEvent>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `links`
[INFO] [stdout]   --> src/api/trace/span_data.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     links: Vec<ImmutableLink>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `status`
[INFO] [stdout]   --> src/api/trace/span_data.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     status: Status,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SERVER`
[INFO] [stdout]   --> src/api/trace.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     SERVER,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CLIENT`
[INFO] [stdout]   --> src/api/trace.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     CLIENT,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PRODUCER`
[INFO] [stdout]   --> src/api/trace.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     PRODUCER,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CONSUMER`
[INFO] [stdout]   --> src/api/trace.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     CONSUMER,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/api/trace.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn new(name: &str) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_attributes`
[INFO] [stdout]   --> src/api/trace.rs:74:8
[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: associated function is never used: `to_str`
[INFO] [stdout]  --> src/api/unit.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn to_str(&self) -> &str {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 46 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 45.56s
[INFO] running `Command { std: "docker" "inspect" "b6819fabf446f7017998c95517a604539105e3834a815f4d35fd457f07546c1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6819fabf446f7017998c95517a604539105e3834a815f4d35fd457f07546c1a", kill_on_drop: false }`
[INFO] [stdout] b6819fabf446f7017998c95517a604539105e3834a815f4d35fd457f07546c1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 886dd833f6a9eb4ed3290e965c178b9cb42f580f9e20fefcd2c5145270de788d
[INFO] running `Command { std: "docker" "start" "-a" "886dd833f6a9eb4ed3290e965c178b9cb42f580f9e20fefcd2c5145270de788d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]  --> src/api/registry.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     name: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `description`
[INFO] [stderr]  --> src/api/registry.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     description: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `unit`
[INFO] [stderr]  --> src/api/registry.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     unit: Unit,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `type_`
[INFO] [stderr]  --> src/api/registry.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     type_: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `span_duration_as_millis`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn span_duration_as_millis(&self) -> Option<u128> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `span_duration_as_micros`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn span_duration_as_micros(&self) -> Option<u128> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `span_duration_as_nanos`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn span_duration_as_nanos(&self) -> Option<u128> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_links_iter`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn get_links_iter(&self) -> impl Iterator<Item = &Link> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_events_iter`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn get_events_iter(&self) -> impl Iterator<Item = &TimedEvent> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_attributes_iter`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:51:8
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn get_attributes_iter(&self) -> impl Iterator<Item = (&String, &Value)> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_start_epoch_time_as_millis`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn get_start_epoch_time_as_millis(&self) -> u128 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_finish_epoch_time_as_millis`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn get_finish_epoch_time_as_millis(&self) -> Option<u128> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_start_epoch_time_as_micros`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn get_start_epoch_time_as_micros(&self) -> u128 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_finish_epoch_time_as_micros`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn get_finish_epoch_time_as_micros(&self) -> Option<u128> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_start_epoch_time_as_nanos`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:70:8
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn get_start_epoch_time_as_nanos(&self) -> u128 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_finish_epoch_time_as_nanos`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:74:8
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn get_finish_epoch_time_as_nanos(&self) -> Option<u128> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `current_trace`
[INFO] [stderr]    --> src/api/trace/in_memory.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     current_trace: Option<TraceContext>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `resource`
[INFO] [stderr]    --> src/api/trace/in_memory.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     resource: Resource,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `current_trace`
[INFO] [stderr]    --> src/api/trace/in_memory.rs:128:8
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn current_trace(&self) -> Option<&TraceContext> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `variable`
[INFO] [stderr]  --> src/api/trace/key.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     variable: registry::Variable,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `key`
[INFO] [stderr]   --> src/api/trace/key.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     key: Key,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]   --> src/api/trace/key.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     value: Value,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Scope`
[INFO] [stderr]  --> src/api/trace/scope.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct Scope<F, S> {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/api/trace/scope.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn new(span: S, f: F) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `run`
[INFO] [stderr]   --> src/api/trace/scope.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn run(&mut self) -> U {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `trace_id`
[INFO] [stderr]   --> src/api/trace/span_data.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     trace_id: TraceId,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `span_id`
[INFO] [stderr]   --> src/api/trace/span_data.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     span_id: SpanId,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `trace_option`
[INFO] [stderr]   --> src/api/trace/span_data.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     trace_option: TraceOption,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `trace_state`
[INFO] [stderr]   --> src/api/trace/span_data.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     trace_state: TraceState,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `span_context`
[INFO] [stderr]   --> src/api/trace/span_data.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     span_context: ImmutableSpanContext,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `attributes`
[INFO] [stderr]   --> src/api/trace/span_data.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     attributes: HashMap<String, Value>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `context`
[INFO] [stderr]   --> src/api/trace/span_data.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     context: ImmutableSpanContext,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `resource`
[INFO] [stderr]   --> src/api/trace/span_data.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     resource: Resource,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `parent_span_id`
[INFO] [stderr]   --> src/api/trace/span_data.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     parent_span_id: Option<SpanId>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]   --> src/api/trace/span_data.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     name: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `kind`
[INFO] [stderr]   --> src/api/trace/span_data.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     kind: SpanKind,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `start_time`
[INFO] [stderr]   --> src/api/trace/span_data.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     start_time: Timestamp,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `end_time`
[INFO] [stderr]   --> src/api/trace/span_data.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     end_time: Timestamp,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `attributes`
[INFO] [stderr]   --> src/api/trace/span_data.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     attributes: HashMap<String, Value>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `events`
[INFO] [stderr]   --> src/api/trace/span_data.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     events: Vec<TimedEvent>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `links`
[INFO] [stderr]   --> src/api/trace/span_data.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     links: Vec<ImmutableLink>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `status`
[INFO] [stderr]   --> src/api/trace/span_data.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     status: Status,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SERVER`
[INFO] [stderr]   --> src/api/trace.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     SERVER,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CLIENT`
[INFO] [stderr]   --> src/api/trace.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     CLIENT,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PRODUCER`
[INFO] [stderr]   --> src/api/trace.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     PRODUCER,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CONSUMER`
[INFO] [stderr]   --> src/api/trace.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     CONSUMER,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/api/trace.rs:70:8
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn new(name: &str) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_with_attributes`
[INFO] [stderr]   --> src/api/trace.rs:74:8
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn new_with_attributes(name: &str, attributes: HashMap<String, Value>) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `as_millis`
[INFO] [stderr]    --> src/api/trace.rs:111:8
[INFO] [stderr]     |
[INFO] [stderr] 111 |     fn as_millis(&self) -> u128 {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `as_micros`
[INFO] [stderr]    --> src/api/trace.rs:118:8
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn as_micros(&self) -> u128 {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `as_nanos`
[INFO] [stderr]    --> src/api/trace.rs:125:8
[INFO] [stderr]     |
[INFO] [stderr] 125 |     fn as_nanos(&self) -> u128 {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `duration_since_as_millis`
[INFO] [stderr]    --> src/api/trace.rs:133:8
[INFO] [stderr]     |
[INFO] [stderr] 133 |     fn duration_since_as_millis(&self, other: &Self) -> Option<u128> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `duration_since_as_micros`
[INFO] [stderr]    --> src/api/trace.rs:140:8
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn duration_since_as_micros(&self, other: &Self) -> Option<u128> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `duration_since_as_nanos`
[INFO] [stderr]    --> src/api/trace.rs:147:8
[INFO] [stderr]     |
[INFO] [stderr] 147 |     fn duration_since_as_nanos(&self, other: &Self) -> Option<u128> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_str`
[INFO] [stderr]  --> src/api/unit.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn to_str(&self) -> &str {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 55 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]  --> src/api/registry.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     name: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `description`
[INFO] [stderr]  --> src/api/registry.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     description: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `unit`
[INFO] [stderr]  --> src/api/registry.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     unit: Unit,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `type_`
[INFO] [stderr]  --> src/api/registry.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     type_: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `span_duration_as_millis`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn span_duration_as_millis(&self) -> Option<u128> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `span_duration_as_micros`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn span_duration_as_micros(&self) -> Option<u128> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `span_duration_as_nanos`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn span_duration_as_nanos(&self) -> Option<u128> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_links_iter`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn get_links_iter(&self) -> impl Iterator<Item = &Link> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_events_iter`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn get_events_iter(&self) -> impl Iterator<Item = &TimedEvent> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_attributes_iter`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:51:8
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn get_attributes_iter(&self) -> impl Iterator<Item = (&String, &Value)> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_start_epoch_time_as_millis`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn get_start_epoch_time_as_millis(&self) -> u128 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_finish_epoch_time_as_millis`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn get_finish_epoch_time_as_millis(&self) -> Option<u128> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_start_epoch_time_as_micros`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn get_start_epoch_time_as_micros(&self) -> u128 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_finish_epoch_time_as_micros`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn get_finish_epoch_time_as_micros(&self) -> Option<u128> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_start_epoch_time_as_nanos`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:70:8
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn get_start_epoch_time_as_nanos(&self) -> u128 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_finish_epoch_time_as_nanos`
[INFO] [stderr]   --> src/api/trace/in_memory.rs:74:8
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn get_finish_epoch_time_as_nanos(&self) -> Option<u128> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `current_trace`
[INFO] [stderr]    --> src/api/trace/in_memory.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     current_trace: Option<TraceContext>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `resource`
[INFO] [stderr]    --> src/api/trace/in_memory.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     resource: Resource,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `current_trace`
[INFO] [stderr]    --> src/api/trace/in_memory.rs:128:8
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn current_trace(&self) -> Option<&TraceContext> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `variable`
[INFO] [stderr]  --> src/api/trace/key.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     variable: registry::Variable,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `key`
[INFO] [stderr]   --> src/api/trace/key.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     key: Key,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]   --> src/api/trace/key.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     value: Value,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `trace_id`
[INFO] [stderr]   --> src/api/trace/span_data.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     trace_id: TraceId,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `span_id`
[INFO] [stderr]   --> src/api/trace/span_data.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     span_id: SpanId,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `trace_option`
[INFO] [stderr]   --> src/api/trace/span_data.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     trace_option: TraceOption,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `trace_state`
[INFO] [stderr]   --> src/api/trace/span_data.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     trace_state: TraceState,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `span_context`
[INFO] [stderr]   --> src/api/trace/span_data.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     span_context: ImmutableSpanContext,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `attributes`
[INFO] [stderr]   --> src/api/trace/span_data.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     attributes: HashMap<String, Value>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `context`
[INFO] [stderr]   --> src/api/trace/span_data.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     context: ImmutableSpanContext,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `resource`
[INFO] [stderr]   --> src/api/trace/span_data.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     resource: Resource,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `parent_span_id`
[INFO] [stderr]   --> src/api/trace/span_data.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     parent_span_id: Option<SpanId>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]   --> src/api/trace/span_data.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     name: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `kind`
[INFO] [stderr]   --> src/api/trace/span_data.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     kind: SpanKind,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `start_time`
[INFO] [stderr]   --> src/api/trace/span_data.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     start_time: Timestamp,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `end_time`
[INFO] [stderr]   --> src/api/trace/span_data.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     end_time: Timestamp,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `attributes`
[INFO] [stderr]   --> src/api/trace/span_data.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     attributes: HashMap<String, Value>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `events`
[INFO] [stderr]   --> src/api/trace/span_data.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     events: Vec<TimedEvent>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `links`
[INFO] [stderr]   --> src/api/trace/span_data.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     links: Vec<ImmutableLink>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `status`
[INFO] [stderr]   --> src/api/trace/span_data.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     status: Status,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SERVER`
[INFO] [stderr]   --> src/api/trace.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     SERVER,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CLIENT`
[INFO] [stderr]   --> src/api/trace.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     CLIENT,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PRODUCER`
[INFO] [stderr]   --> src/api/trace.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     PRODUCER,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CONSUMER`
[INFO] [stderr]   --> src/api/trace.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     CONSUMER,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/api/trace.rs:70:8
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn new(name: &str) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_with_attributes`
[INFO] [stderr]   --> src/api/trace.rs:74:8
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn new_with_attributes(name: &str, attributes: HashMap<String, Value>) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_str`
[INFO] [stderr]  --> src/api/unit.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn to_str(&self) -> &str {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 46 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ot_rs-e5685f24655f5d09)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/resources.rs (/opt/rustwide/target/debug/deps/resources-539e56cc45b93be7)
[INFO] [stdout] running 6 tests
[INFO] [stdout] test api::trace::propagation::http_trace_context_extract ... ok
[INFO] [stdout] test api::trace::propagation::http_trace_context_inject ... ok
[INFO] [stdout] test api::trace::scope::scope_test ... ok
[INFO] [stdout] test api::trace::timestamp_to_primitive ... ok
[INFO] [stdout] test api::trace::propagation::span_context_convert_base16 ... ok
[INFO] [stdout] test api::trace::timestamp_to_duration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test merge_test ... ok
[INFO] [stdout] test invalid_name_empty ... ok
[INFO] [stdout] test invalid_value_chars ... ok
[INFO] [stdout] test valid_name ... ok
[INFO] [stdout] test valid_value ... ok
[INFO] [stdout] test invalid_name_so_long ... ok
[INFO] [stdout] test invalid_name_chars ... ok
[INFO] [stdout] test invalid_value_so_long ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.93s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/span_context.rs (/opt/rustwide/target/debug/deps/span_context-daf78dbd8c58c2a8)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test span_context_valid ... ok
[INFO] [stdout] test trace_id_compare ... ok
[INFO] [stdout] test span_id_convert_base16 ... ok
[INFO] [stdout] test trace_id_convert_base16 ... ok
[INFO] [stdout] test span_id_compare ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ot-rs
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "886dd833f6a9eb4ed3290e965c178b9cb42f580f9e20fefcd2c5145270de788d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "886dd833f6a9eb4ed3290e965c178b9cb42f580f9e20fefcd2c5145270de788d", kill_on_drop: false }`
[INFO] [stdout] 886dd833f6a9eb4ed3290e965c178b9cb42f580f9e20fefcd2c5145270de788d
