[INFO] cloning repository https://github.com/xd009642/tracing-otel-span-overwrite
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xd009642/tracing-otel-span-overwrite" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxd009642%2Ftracing-otel-span-overwrite", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxd009642%2Ftracing-otel-span-overwrite'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f9b11957f562109d307582f0ad2193d24f88e40
[INFO] testing xd009642/tracing-otel-span-overwrite against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxd009642%2Ftracing-otel-span-overwrite" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/xd009642/tracing-otel-span-overwrite
[INFO] finished tweaking git repo https://github.com/xd009642/tracing-otel-span-overwrite
[INFO] tweaked toml for git repo https://github.com/xd009642/tracing-otel-span-overwrite written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xd009642/tracing-otel-span-overwrite on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xd009642/tracing-otel-span-overwrite already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-stream v0.1.17
[INFO] [stderr]   Downloaded async-stream-impl v0.3.6
[INFO] [stderr]   Downloaded async-stream v0.3.6
[INFO] [stderr]   Downloaded opentelemetry-http v0.28.0
[INFO] [stderr]   Downloaded opentelemetry v0.28.0
[INFO] [stderr]   Downloaded hyper-timeout v0.5.2
[INFO] [stderr]   Downloaded prost v0.13.5
[INFO] [stderr]   Downloaded tonic v0.12.3
[INFO] [stderr]   Downloaded anyhow v1.0.96
[INFO] [stderr]   Downloaded opentelemetry-semantic-conventions v0.28.0
[INFO] [stderr]   Downloaded miniz_oxide v0.8.4
[INFO] [stderr]   Downloaded prost-derive v0.13.5
[INFO] [stderr]   Downloaded opentelemetry-proto v0.28.0
[INFO] [stderr]   Downloaded axum v0.7.9
[INFO] [stderr]   Downloaded tracing-opentelemetry v0.29.0
[INFO] [stderr]   Downloaded opentelemetry_sdk v0.28.0
[INFO] [stderr]   Downloaded opentelemetry-otlp v0.28.0
[INFO] [stderr]   Downloaded tokio v1.43.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c166e5bd34ca375833bb264160d58b67416b0b73f8a2290ba513c57c11ebfc4
[INFO] running `Command { std: "docker" "start" "-a" "2c166e5bd34ca375833bb264160d58b67416b0b73f8a2290ba513c57c11ebfc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c166e5bd34ca375833bb264160d58b67416b0b73f8a2290ba513c57c11ebfc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c166e5bd34ca375833bb264160d58b67416b0b73f8a2290ba513c57c11ebfc4", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] a5971f864966622349932f1c189ad506ee4e2fcc98b25c01f1dc2258821eb29c
[INFO] running `Command { std: "docker" "start" "-a" "a5971f864966622349932f1c189ad506ee4e2fcc98b25c01f1dc2258821eb29c", kill_on_drop: false }`
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[INFO] [stderr]    Compiling opentelemetry v0.28.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling pin-project v1.1.9
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[INFO] [stderr]    Compiling rand_chacha v0.3.1
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[INFO] [stderr]    Compiling icu_locid v1.5.0
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[INFO] [stderr]    Compiling icu_locid_transform v1.5.0
[INFO] [stderr]    Compiling http-body-util v0.1.2
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling opentelemetry_sdk v0.28.0
[INFO] [stderr]    Compiling icu_properties v1.5.1
[INFO] [stderr]    Compiling axum-core v0.4.5
[INFO] [stderr]    Compiling tokio-util v0.7.13
[INFO] [stderr]    Compiling tower v0.5.2
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling h2 v0.4.8
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling tracing-opentelemetry v0.29.0
[INFO] [stderr]    Compiling icu_normalizer v1.5.0
[INFO] [stderr]    Compiling axum v0.7.9
[INFO] [stderr]    Compiling idna_adapter v1.2.0
[INFO] [stderr]    Compiling idna v1.0.3
[INFO] [stderr]    Compiling url v2.5.4
[INFO] [stderr]    Compiling hyper v1.6.0
[INFO] [stderr]    Compiling hyper-util v0.1.10
[INFO] [stderr]    Compiling hyper-timeout v0.5.2
[INFO] [stderr]    Compiling reqwest v0.12.12
[INFO] [stderr]    Compiling tonic v0.12.3
[INFO] [stderr]    Compiling opentelemetry-http v0.28.0
[INFO] [stderr]    Compiling opentelemetry-proto v0.28.0
[INFO] [stderr]    Compiling opentelemetry-otlp v0.28.0
[INFO] [stderr]    Compiling otel-experiment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `KeyValue`
[INFO] [stdout]  --> src/main.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use opentelemetry::{global, KeyValue};
[INFO] [stdout]   |                             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `opentelemetry_semantic_conventions::resource::SERVICE_NAME`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use opentelemetry_semantic_conventions::resource::SERVICE_NAME;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error` and `span`
[INFO] [stdout]   --> src/main.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 | use tracing::{error, info, info_span, instrument, span, Span};
[INFO] [stdout]    |               ^^^^^                               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing_subscriber::layer::SubscriberExt`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tracing_subscriber::layer::SubscriberExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `opentelemetry_sdk::trace::TracerProviderBuilder::with_config`: Config is becoming a private type. Use Builder::with_{config_name}(resource) instead. ex: Builder::with_resource(resource)
[INFO] [stdout]   --> src/main.rs:72:10
[INFO] [stdout]    |
[INFO] [stdout] 72 |         .with_config(
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `opentelemetry_sdk::trace::Config::with_resource`: Config is becoming private. Please use Builder::with_resource(...) instead.
[INFO] [stdout]   --> src/main.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 .with_resource(Resource::builder().with_service_name(service_name).build()),
[INFO] [stdout]    |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hnd`
[INFO] [stdout]   --> src/main.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let (hnd, provider) = setup_logging();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_hnd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut current = info_span!("Processing");
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_current` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current` is never read
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     current = Span::none();
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current` is never read
[INFO] [stdout]   --> src/main.rs:45:29
[INFO] [stdout]    |
[INFO] [stdout] 45 |             Event::Start => current = info_span!("Start again"),
[INFO] [stdout]    |                             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current` is never read
[INFO] [stdout]   --> src/main.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 current = Span::none();
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     provider.shutdown();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let _ = provider.shutdown();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 53.29s
[INFO] running `Command { std: "docker" "inspect" "a5971f864966622349932f1c189ad506ee4e2fcc98b25c01f1dc2258821eb29c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5971f864966622349932f1c189ad506ee4e2fcc98b25c01f1dc2258821eb29c", kill_on_drop: false }`
[INFO] [stdout] a5971f864966622349932f1c189ad506ee4e2fcc98b25c01f1dc2258821eb29c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] b6289585b4a38659bcb5d74a94f0d302a878fe1eeed95be7d5e15123c6a61b77
[INFO] running `Command { std: "docker" "start" "-a" "b6289585b4a38659bcb5d74a94f0d302a878fe1eeed95be7d5e15123c6a61b77", kill_on_drop: false }`
[INFO] [stderr]    Compiling otel-experiment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `KeyValue`
[INFO] [stdout]  --> src/main.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use opentelemetry::{global, KeyValue};
[INFO] [stdout]   |                             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `opentelemetry_semantic_conventions::resource::SERVICE_NAME`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use opentelemetry_semantic_conventions::resource::SERVICE_NAME;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error` and `span`
[INFO] [stdout]   --> src/main.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 | use tracing::{error, info, info_span, instrument, span, Span};
[INFO] [stdout]    |               ^^^^^                               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing_subscriber::layer::SubscriberExt`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tracing_subscriber::layer::SubscriberExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `opentelemetry_sdk::trace::TracerProviderBuilder::with_config`: Config is becoming a private type. Use Builder::with_{config_name}(resource) instead. ex: Builder::with_resource(resource)
[INFO] [stdout]   --> src/main.rs:72:10
[INFO] [stdout]    |
[INFO] [stdout] 72 |         .with_config(
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `opentelemetry_sdk::trace::Config::with_resource`: Config is becoming private. Please use Builder::with_resource(...) instead.
[INFO] [stdout]   --> src/main.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 .with_resource(Resource::builder().with_service_name(service_name).build()),
[INFO] [stdout]    |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hnd`
[INFO] [stdout]   --> src/main.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let (hnd, provider) = setup_logging();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_hnd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut current = info_span!("Processing");
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_current` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current` is never read
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     current = Span::none();
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current` is never read
[INFO] [stdout]   --> src/main.rs:45:29
[INFO] [stdout]    |
[INFO] [stdout] 45 |             Event::Start => current = info_span!("Start again"),
[INFO] [stdout]    |                             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current` is never read
[INFO] [stdout]   --> src/main.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 current = Span::none();
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     provider.shutdown();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let _ = provider.shutdown();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "b6289585b4a38659bcb5d74a94f0d302a878fe1eeed95be7d5e15123c6a61b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6289585b4a38659bcb5d74a94f0d302a878fe1eeed95be7d5e15123c6a61b77", kill_on_drop: false }`
[INFO] [stdout] b6289585b4a38659bcb5d74a94f0d302a878fe1eeed95be7d5e15123c6a61b77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 7bb227a781df31897a6d7de5c3c333f72d4177e27810dcddf0d722535e47e152
[INFO] running `Command { std: "docker" "start" "-a" "7bb227a781df31897a6d7de5c3c333f72d4177e27810dcddf0d722535e47e152", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `KeyValue`
[INFO] [stderr]  --> src/main.rs:2:29
[INFO] [stderr]   |
[INFO] [stderr] 2 | use opentelemetry::{global, KeyValue};
[INFO] [stderr]   |                             ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `opentelemetry_semantic_conventions::resource::SERVICE_NAME`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use opentelemetry_semantic_conventions::resource::SERVICE_NAME;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `error` and `span`
[INFO] [stderr]   --> src/main.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 | use tracing::{error, info, info_span, instrument, span, Span};
[INFO] [stderr]    |               ^^^^^                               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tracing_subscriber::layer::SubscriberExt`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use tracing_subscriber::layer::SubscriberExt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `opentelemetry_sdk::trace::TracerProviderBuilder::with_config`: Config is becoming a private type. Use Builder::with_{config_name}(resource) instead. ex: Builder::with_resource(resource)
[INFO] [stderr]   --> src/main.rs:72:10
[INFO] [stderr]    |
[INFO] [stderr] 72 |         .with_config(
[INFO] [stderr]    |          ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `opentelemetry_sdk::trace::Config::with_resource`: Config is becoming private. Please use Builder::with_resource(...) instead.
[INFO] [stderr]   --> src/main.rs:74:18
[INFO] [stderr]    |
[INFO] [stderr] 74 |                 .with_resource(Resource::builder().with_service_name(service_name).build()),
[INFO] [stderr]    |                  ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hnd`
[INFO] [stderr]   --> src/main.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let (hnd, provider) = setup_logging();
[INFO] [stderr]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_hnd`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `current` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let mut current = info_span!("Processing");
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_current` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `current` is never read
[INFO] [stderr]   --> src/main.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     current = Span::none();
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `current` is never read
[INFO] [stderr]   --> src/main.rs:45:29
[INFO] [stderr]    |
[INFO] [stderr] 45 |             Event::Start => current = info_span!("Start again"),
[INFO] [stderr]    |                             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `current` is never read
[INFO] [stderr]   --> src/main.rs:47:17
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 current = Span::none();
[INFO] [stderr]    |                 ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     provider.shutdown();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let _ = provider.shutdown();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `otel-experiment` (bin "otel-experiment" test) generated 12 warnings (run `cargo fix --bin "otel-experiment" -p otel-experiment --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/build/otel-experiment/c67231063fa62367/deps/otel_experiment-c67231063fa62367)
[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" "7bb227a781df31897a6d7de5c3c333f72d4177e27810dcddf0d722535e47e152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bb227a781df31897a6d7de5c3c333f72d4177e27810dcddf0d722535e47e152", kill_on_drop: false }`
[INFO] [stdout] 7bb227a781df31897a6d7de5c3c333f72d4177e27810dcddf0d722535e47e152
