[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 beta-2021-08-01 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-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ROki1988/ot-rs on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-3/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" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo-husky v1.4.0
[INFO] [stderr]   Downloaded headers v0.2.1
[INFO] [stderr]   Downloaded quote v1.0.1
[INFO] [stderr]   Downloaded headers-derive v0.1.1
[INFO] [stderr]   Downloaded syn v1.0.2
[INFO] [stderr]   Downloaded proptest v0.9.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e031839e1fd256e5e38ecf0608972ca31907da0319868b13f8e14d906f7bb8b4
[INFO] running `Command { std: "docker" "start" "-a" "e031839e1fd256e5e38ecf0608972ca31907da0319868b13f8e14d906f7bb8b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e031839e1fd256e5e38ecf0608972ca31907da0319868b13f8e14d906f7bb8b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e031839e1fd256e5e38ecf0608972ca31907da0319868b13f8e14d906f7bb8b4", kill_on_drop: false }`
[INFO] [stdout] e031839e1fd256e5e38ecf0608972ca31907da0319868b13f8e14d906f7bb8b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdc004cad22aaff36ecfa8c74d8bff76e45eece32ccdc4fec84e8619dc0dfe8f
[INFO] running `Command { std: "docker" "start" "-a" "cdc004cad22aaff36ecfa8c74d8bff76e45eece32ccdc4fec84e8619dc0dfe8f", kill_on_drop: false }`
[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 pin-utils v0.1.0-alpha.4
[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 iovec v0.1.2
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[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 5.11s
[INFO] running `Command { std: "docker" "inspect" "cdc004cad22aaff36ecfa8c74d8bff76e45eece32ccdc4fec84e8619dc0dfe8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdc004cad22aaff36ecfa8c74d8bff76e45eece32ccdc4fec84e8619dc0dfe8f", kill_on_drop: false }`
[INFO] [stdout] cdc004cad22aaff36ecfa8c74d8bff76e45eece32ccdc4fec84e8619dc0dfe8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1285f44ffd70e4f096c588f48555e14870f2081171725e8c0f0bdfcb8d5ddbbc
[INFO] running `Command { std: "docker" "start" "-a" "1285f44ffd70e4f096c588f48555e14870f2081171725e8c0f0bdfcb8d5ddbbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling futures v0.1.28
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling syn v1.0.2
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling cargo-husky v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.11
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling unicase v2.4.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling http v0.1.18
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling input_buffer v0.2.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[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 rusty-fork v0.2.2
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling log v0.3.9
[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 sha-1 v0.8.1
[INFO] [stderr]    Compiling mime v0.2.6
[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 want v0.2.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling mime v0.3.13
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling quote v1.0.1
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling tokio-timer v0.2.11
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling headers-core v0.1.1
[INFO] [stderr]    Compiling h2 v0.1.26
[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 tungstenite v0.9.1
[INFO] [stderr]    Compiling proptest v0.9.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling headers-derive v0.1.1
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling headers v0.2.1
[INFO] [stderr]    Compiling multipart v0.16.1
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling warp v0.1.20
[INFO] [stderr] thread 'rustc' panicked at 'no errors encountered even though `delay_span_bug` issued', compiler/rustc_errors/src/lib.rs:1050:13
[INFO] [stdout] error: internal compiler error: unexpected concrete region in borrowck: ReStatic
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.20/src/filters/sse.rs:482:5
[INFO] [stdout]     |
[INFO] [stdout] 482 | /     pub fn stream<S>(
[INFO] [stdout] 483 | |         self,
[INFO] [stdout] 484 | |         event_stream: S,
[INFO] [stdout] 485 | |     ) -> impl Stream<
[INFO] [stdout] ...   |
[INFO] [stdout] 501 | |         }
[INFO] [stdout] 502 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: delayed at compiler/rustc_mir/src/borrow_check/region_infer/opaque_types.rs:87:44
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] stack backtrace:
[INFO] [stdout] error: internal compiler error: unexpected concrete region in borrowck: ReStatic
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.1.20/src/filters/sse.rs:515:1
[INFO] [stdout]     |
[INFO] [stdout] 515 | / pub fn keep<S>(
[INFO] [stdout] 516 | |     event_stream: S,
[INFO] [stdout] 517 | |     keep_interval: impl Into<Option<Duration>>,
[INFO] [stdout] 518 | | ) -> impl Stream<
[INFO] [stdout] ...   |
[INFO] [stdout] 537 | |     }
[INFO] [stdout] 538 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: delayed at compiler/rustc_mir/src/borrow_check/region_infer/opaque_types.rs:87:44
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    0:     0x7f504812cb00 - std::backtrace_rs::backtrace::libunwind::trace::hff4d1766e93f64f1
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]    1:     0x7f504812cb00 - std::backtrace_rs::backtrace::trace_unsynchronized::h56bbc8eb78770bcb
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7f504812cb00 - std::sys_common::backtrace::_print_fmt::h5c8e75464faca780
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x7f504812cb00 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h48b88277def8b362
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]    4:     0x7f504819a63c - core::fmt::write::h3381b3176fe2b3d3
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]    5:     0x7f504811e3e5 - std::io::Write::write_fmt::hd42607e5d8e44db0
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/io/mod.rs:1665:15
[INFO] [stderr]    6:     0x7f504813081b - std::sys_common::backtrace::_print::ha537687d6c17dd0d
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]    7:     0x7f504813081b - std::sys_common::backtrace::print::h61376ae57d131d72
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]    8:     0x7f504813081b - std::panicking::default_hook::{{closure}}::h0f7208c0b9644a54
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:208:50
[INFO] [stderr]    9:     0x7f50481302f1 - std::panicking::default_hook::hdac7fc06578c14ce
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:225:9
[INFO] [stderr]   10:     0x7f504890a531 - rustc_driver::DEFAULT_HOOK::{{closure}}::{{closure}}::he0fb23ee363efe57
[INFO] [stderr]   11:     0x7f5048131049 - std::panicking::rust_panic_with_hook::h72b21c283da3d1ef
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:626:17
[INFO] [stderr]   12:     0x7f5048130b07 - std::panicking::begin_panic_handler::{{closure}}::he5778f1729cff84a
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:519:13
[INFO] [stderr]   13:     0x7f504812cfdc - std::sys_common::backtrace::__rust_end_short_backtrace::h2d11ca8b453b4b1d
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]   14:     0x7f5048130a69 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:515:5
[INFO] [stderr]   15:     0x7f50480f9a6b - std::panicking::begin_panic_fmt::h746518bde832d259
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:457:5
[INFO] [stderr]   16:     0x7f504ad6e1a9 - rustc_errors::HandlerInner::flush_delayed::h68abfe220c70dca1
[INFO] [stderr]   17:     0x7f504ad6cc0d - <rustc_errors::HandlerInner as core::ops::drop::Drop>::drop::hd769a4292ac9bfa2
[INFO] [stderr]   18:     0x7f504a4218d6 - core::ptr::drop_in_place<rustc_session::parse::ParseSess>::h3c16055fae7b64de
[INFO] [stderr]   19:     0x7f504a423a1e - <alloc::rc::Rc<T> as core::ops::drop::Drop>::drop::ha02c0db4efb40d0e
[INFO] [stderr]   20:     0x7f504a3f8cfd - core::ptr::drop_in_place<rustc_interface::interface::Compiler>::h4b986457436dbab5
[INFO] [stderr]   21:     0x7f504a3f82e3 - rustc_span::with_source_map::h46995da78fbfb2ca
[INFO] [stderr]   22:     0x7f504a409bca - rustc_interface::interface::create_compiler_and_run::hdd0d8e5ea2028f60
[INFO] [stderr]   23:     0x7f504a3fcc49 - scoped_tls::ScopedKey<T>::set::h4889fb0c1fafdd05
[INFO] [stderr]   24:     0x7f504a3f966a - std::sys_common::backtrace::__rust_begin_short_backtrace::h78e9a1a2353d1913
[INFO] [stderr]   25:     0x7f504a3f8ab5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb838edfbc6ca2ea1
[INFO] [stderr]   26:     0x7f504813d5d7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h65c29e4642be2358
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stderr]   27:     0x7f504813d5d7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd0f8f7fbbd9fffbf
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stderr]   28:     0x7f504813d5d7 - std::sys::unix::thread::Thread::new::thread_start::h2fd22fee3ca77b65
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys/unix/thread.rs:74:17
[INFO] [stderr]   29:     0x7f5048059609 - start_thread
[INFO] [stderr]   30:     0x7f5047f6d293 - clone
[INFO] [stderr]   31:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] error: internal compiler error: unexpected panic
[INFO] [stderr] 
[INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug.
[INFO] [stderr] 
[INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.55.0-beta.3 (53fd98ca7 2021-07-31) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type lib
[INFO] [stderr] 
[INFO] [stderr] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] query stack during panic:
[INFO] [stderr] end of query stack
[INFO] [stderr] error: could not compile `warp`
[INFO] running `Command { std: "docker" "inspect" "1285f44ffd70e4f096c588f48555e14870f2081171725e8c0f0bdfcb8d5ddbbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1285f44ffd70e4f096c588f48555e14870f2081171725e8c0f0bdfcb8d5ddbbc", kill_on_drop: false }`
[INFO] [stdout] 1285f44ffd70e4f096c588f48555e14870f2081171725e8c0f0bdfcb8d5ddbbc
