[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] checking xd009642/tracing-otel-span-overwrite against master#40daf23eeb711dadf140b2536e67e3ff4c999196 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxd009642%2Ftracing-otel-span-overwrite" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xd009642/tracing-otel-span-overwrite on toolchain 40daf23eeb711dadf140b2536e67e3ff4c999196
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-tc1/source/Cargo.toml
[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" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "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 opentelemetry-semantic-conventions v0.28.0
[INFO] [stderr]   Downloaded tracing-opentelemetry v0.29.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eefaff6486239214ce1d442ebc02cad3b97d2b598bcb690e801e0db9e13c05c2
[INFO] running `Command { std: "docker" "start" "-a" "eefaff6486239214ce1d442ebc02cad3b97d2b598bcb690e801e0db9e13c05c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eefaff6486239214ce1d442ebc02cad3b97d2b598bcb690e801e0db9e13c05c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eefaff6486239214ce1d442ebc02cad3b97d2b598bcb690e801e0db9e13c05c2", kill_on_drop: false }`
[INFO] [stdout] eefaff6486239214ce1d442ebc02cad3b97d2b598bcb690e801e0db9e13c05c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54c4915d56fbd4a3ed9e620200ee6b46b2ed58a19192680cb8a143ecc9d9e0c7
[INFO] running `Command { std: "docker" "start" "-a" "54c4915d56fbd4a3ed9e620200ee6b46b2ed58a19192680cb8a143ecc9d9e0c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.17
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[INFO] [stderr]     Checking 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)]` 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: 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)]` 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: 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:42:13
[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: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]    = note: `#[warn(unused_assignments)]` on by default
[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: 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] 
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:42:13
[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: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]    = note: `#[warn(unused_assignments)]` on by default
[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: 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] 
[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)]` 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] [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)]` 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 44.19s
[INFO] running `Command { std: "docker" "inspect" "54c4915d56fbd4a3ed9e620200ee6b46b2ed58a19192680cb8a143ecc9d9e0c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54c4915d56fbd4a3ed9e620200ee6b46b2ed58a19192680cb8a143ecc9d9e0c7", kill_on_drop: false }`
[INFO] [stdout] 54c4915d56fbd4a3ed9e620200ee6b46b2ed58a19192680cb8a143ecc9d9e0c7