[INFO] cloning repository https://github.com/TGLuong/test-trace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TGLuong/test-trace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTGLuong%2Ftest-trace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTGLuong%2Ftest-trace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 366707c7dab44bbffc312d9a08096cd2adea3024
[INFO] checking TGLuong/test-trace/366707c7dab44bbffc312d9a08096cd2adea3024 against master#eeb94be79adc9df7a09ad0b2421f16e60e6d932c for pr-152971
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTGLuong%2Ftest-trace" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/TGLuong/test-trace
[INFO] finished tweaking git repo https://github.com/TGLuong/test-trace
[INFO] tweaked toml for git repo https://github.com/TGLuong/test-trace written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TGLuong/test-trace on toolchain eeb94be79adc9df7a09ad0b2421f16e60e6d932c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/TGLuong/test-trace 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" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded socket2 v0.5.9
[INFO] [stderr]   Downloaded hyper-util v0.1.11
[INFO] [stderr]   Downloaded opentelemetry-http v0.28.0
[INFO] [stderr]   Downloaded opentelemetry-otlp v0.28.0
[INFO] [stderr]   Downloaded opentelemetry v0.28.0
[INFO] [stderr]   Downloaded tracing-opentelemetry v0.29.0
[INFO] [stderr]   Downloaded opentelemetry-proto v0.28.0
[INFO] [stderr]   Downloaded opentelemetry_sdk v0.28.0
[INFO] [stderr]   Downloaded rustls-webpki v0.103.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bd212f30910913838867406a8ff1ae9231ff8f7fb3701dc4b2cd0bc78cc368b
[INFO] running `Command { std: "docker" "start" "-a" "8bd212f30910913838867406a8ff1ae9231ff8f7fb3701dc4b2cd0bc78cc368b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bd212f30910913838867406a8ff1ae9231ff8f7fb3701dc4b2cd0bc78cc368b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bd212f30910913838867406a8ff1ae9231ff8f7fb3701dc4b2cd0bc78cc368b", kill_on_drop: false }`
[INFO] [stdout] 8bd212f30910913838867406a8ff1ae9231ff8f7fb3701dc4b2cd0bc78cc368b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aba9e05c8f07052833b6941cf65f04c2b12041e0f201e1a681e8e75178b1206e
[INFO] running `Command { std: "docker" "start" "-a" "aba9e05c8f07052833b6941cf65f04c2b12041e0f201e1a681e8e75178b1206e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking litemap v0.7.5
[INFO] [stderr]     Checking writeable v0.5.5
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.1
[INFO] [stderr]    Compiling cc v1.2.17
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling icu_properties_data v1.5.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.1
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling rustls v0.23.25
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]     Checking utf16_iter v1.0.5
[INFO] [stderr]     Checking write16 v1.0.0
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]     Checking rustls-native-certs v0.8.1
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[INFO] [stderr]     Checking rustls-pemfile v2.2.0
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[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking parking_lot_core v0.9.10
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[INFO] [stderr]     Checking rand v0.9.0
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[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling zerovec-derive v0.10.3
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling async-trait v0.1.88
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling prost-derive v0.13.5
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[INFO] [stderr]    Compiling yoke-derive v0.7.5
[INFO] [stderr]     Checking tokio v1.44.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking tracing v0.1.41
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[INFO] [stderr]     Checking zerovec v0.10.4
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[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking hyper v1.6.0
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[INFO] [stderr]     Checking icu_normalizer v1.5.0
[INFO] [stderr]     Checking idna_adapter v1.2.0
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[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper-util v0.1.11
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking hyper-rustls v0.27.5
[INFO] [stderr]     Checking opentelemetry_sdk v0.28.0
[INFO] [stderr]     Checking reqwest v0.12.15
[INFO] [stderr]     Checking opentelemetry-http v0.28.0
[INFO] [stderr]     Checking opentelemetry-proto v0.28.0
[INFO] [stderr]     Checking tracing-opentelemetry v0.29.0
[INFO] [stderr]     Checking opentelemetry-otlp v0.28.0
[INFO] [stderr]     Checking test-tracing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `TraceContextExt`
[INFO] [stdout]  --> src/main.rs:6:28
[INFO] [stdout]   |
[INFO] [stdout] 6 | use opentelemetry::trace::{TraceContextExt, TracerProvider};
[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: `rand::Rng`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use rand::Rng;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::distr::Alphanumeric`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::distr::Alphanumeric;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `info_span` and `span`
[INFO] [stdout]   --> src/main.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tracing::{event, info_span, span};
[INFO] [stdout]    |                      ^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TraceContextExt`
[INFO] [stdout]  --> src/main.rs:6:28
[INFO] [stdout]   |
[INFO] [stdout] 6 | use opentelemetry::trace::{TraceContextExt, TracerProvider};
[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: `rand::Rng`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use rand::Rng;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::distr::Alphanumeric`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::distr::Alphanumeric;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `info_span` and `span`
[INFO] [stdout]   --> src/main.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tracing::{event, info_span, span};
[INFO] [stdout]    |                      ^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_context`
[INFO] [stdout]   --> src/main.rs:84:29
[INFO] [stdout]    |
[INFO] [stdout] 84 |                         let parent_context =
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_context`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_context`
[INFO] [stdout]   --> src/main.rs:84:29
[INFO] [stdout]    |
[INFO] [stdout] 84 |                         let parent_context =
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_context`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.30s
[INFO] running `Command { std: "docker" "inspect" "aba9e05c8f07052833b6941cf65f04c2b12041e0f201e1a681e8e75178b1206e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aba9e05c8f07052833b6941cf65f04c2b12041e0f201e1a681e8e75178b1206e", kill_on_drop: false }`
[INFO] [stdout] aba9e05c8f07052833b6941cf65f04c2b12041e0f201e1a681e8e75178b1206e