[INFO] fetching crate tracing-stackdriver 0.10.0...
[INFO] testing tracing-stackdriver-0.10.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate tracing-stackdriver 0.10.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tracing-stackdriver 0.10.0
[INFO] finished tweaking crates.io crate tracing-stackdriver 0.10.0
[INFO] tweaked toml for crates.io crate tracing-stackdriver 0.10.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tracing-stackdriver 0.10.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 113 packages to latest compatible versions
[INFO] [stderr]       Adding http v0.2.12 (available: v1.3.1)
[INFO] [stderr]       Adding opentelemetry v0.22.0 (available: v0.31.0)
[INFO] [stderr]       Adding opentelemetry-stdout v0.3.0 (available: v0.31.0)
[INFO] [stderr]       Adding opentelemetry_sdk v0.22.1 (available: v0.31.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] [stderr]       Adding tracing-opentelemetry v0.23.0 (available: v0.32.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a4d3cd84912a47e60cd03418a55e3e44367a3fddf7f9302720bdc5a128c0e59
[INFO] running `Command { std: "docker" "start" "-a" "6a4d3cd84912a47e60cd03418a55e3e44367a3fddf7f9302720bdc5a128c0e59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a4d3cd84912a47e60cd03418a55e3e44367a3fddf7f9302720bdc5a128c0e59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a4d3cd84912a47e60cd03418a55e3e44367a3fddf7f9302720bdc5a128c0e59", kill_on_drop: false }`
[INFO] [stdout] 6a4d3cd84912a47e60cd03418a55e3e44367a3fddf7f9302720bdc5a128c0e59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9958802c9bf97704d92f0bde611f21bd232f84ea53fbab59621c90b3e2f1bc8
[INFO] running `Command { std: "docker" "start" "-a" "d9958802c9bf97704d92f0bde611f21bd232f84ea53fbab59621c90b3e2f1bc8", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling deranged v0.5.5
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]    Compiling nu-ansi-term v0.50.3
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling tracing-serde v0.2.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling tracing-stackdriver v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]  --> src/google.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     all(tracing_unstable, feature = "valuable"),
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:106:23
[INFO] [stdout]     |
[INFO] [stdout] 106 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:142:23
[INFO] [stdout]     |
[INFO] [stdout] 142 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:150:11
[INFO] [stdout]     |
[INFO] [stdout] 150 | #[cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:227:23
[INFO] [stdout]     |
[INFO] [stdout] 227 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]   --> src/google.rs:92:19
[INFO] [stdout]    |
[INFO] [stdout] 92 |         #[cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/visitor.rs:134:15
[INFO] [stdout]     |
[INFO] [stdout] 134 |     #[cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.76s
[INFO] running `Command { std: "docker" "inspect" "d9958802c9bf97704d92f0bde611f21bd232f84ea53fbab59621c90b3e2f1bc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9958802c9bf97704d92f0bde611f21bd232f84ea53fbab59621c90b3e2f1bc8", kill_on_drop: false }`
[INFO] [stdout] d9958802c9bf97704d92f0bde611f21bd232f84ea53fbab59621c90b3e2f1bc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 482a13c272df4f76eb389ba7c4c00d8662b440beccdc3a3e42aad8f61eea4991
[INFO] running `Command { std: "docker" "start" "-a" "482a13c272df4f76eb389ba7c4c00d8662b440beccdc3a3e42aad8f61eea4991", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling urlencoding v2.1.3
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling deranged v0.5.5
[INFO] [stderr]    Compiling ordered-float v4.6.0
[INFO] [stderr]    Compiling tracing-serde v0.2.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling opentelemetry v0.22.0
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling opentelemetry_sdk v0.22.1
[INFO] [stderr]    Compiling tracing-stackdriver v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]  --> src/google.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     all(tracing_unstable, feature = "valuable"),
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:106:23
[INFO] [stdout]     |
[INFO] [stdout] 106 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:142:23
[INFO] [stdout]     |
[INFO] [stdout] 142 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:150:11
[INFO] [stdout]     |
[INFO] [stdout] 150 | #[cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:227:23
[INFO] [stdout]     |
[INFO] [stdout] 227 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]   --> src/google.rs:92:19
[INFO] [stdout]    |
[INFO] [stdout] 92 |         #[cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/visitor.rs:134:15
[INFO] [stdout]     |
[INFO] [stdout] 134 |     #[cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling opentelemetry-stdout v0.3.0
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]  --> tests/valuable.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]  --> src/google.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     all(tracing_unstable, feature = "valuable"),
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:106:23
[INFO] [stdout]     |
[INFO] [stdout] 106 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:142:23
[INFO] [stdout]     |
[INFO] [stdout] 142 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:150:11
[INFO] [stdout]     |
[INFO] [stdout] 150 | #[cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/google.rs:227:23
[INFO] [stdout]     |
[INFO] [stdout] 227 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]   --> src/google.rs:92:19
[INFO] [stdout]    |
[INFO] [stdout] 92 |         #[cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stdout]    --> src/visitor.rs:134:15
[INFO] [stdout]     |
[INFO] [stdout] 134 |     #[cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `file` and `line` are never read
[INFO] [stdout]  --> tests/mocks.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct MockSourceLocation {
[INFO] [stdout]   |            ------------------ fields in this struct
[INFO] [stdout] 7 |     pub file: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 8 |     pub line: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `MockSourceLocation` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `time`, `target`, `severity`, `source_location`, and `insert_id` are never read
[INFO] [stdout]   --> tests/mocks.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct MockDefaultEvent {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] 13 |     #[serde(deserialize_with = "time::serde::rfc3339::deserialize")]
[INFO] [stdout] 14 |     pub time: OffsetDateTime,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 15 |     pub target: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 16 |     pub severity: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 17 |     #[serde(rename = "logging.googleapis.com/sourceLocation")]
[INFO] [stdout] 18 |     pub source_location: MockSourceLocation,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub insert_id: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MockDefaultEvent` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockSpan` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct MockSpan {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockEventWithSpan` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct MockEventWithSpan {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockHttpRequest` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct MockHttpRequest {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockHttpEvent` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct MockHttpEvent {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `file` and `line` are never read
[INFO] [stdout]  --> tests/mocks.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct MockSourceLocation {
[INFO] [stdout]   |            ------------------ fields in this struct
[INFO] [stdout] 7 |     pub file: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 8 |     pub line: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `MockSourceLocation` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `time`, `target`, `severity`, `source_location`, and `labels` are never read
[INFO] [stdout]   --> tests/mocks.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct MockDefaultEvent {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] 13 |     #[serde(deserialize_with = "time::serde::rfc3339::deserialize")]
[INFO] [stdout] 14 |     pub time: OffsetDateTime,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 15 |     pub target: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 16 |     pub severity: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 17 |     #[serde(rename = "logging.googleapis.com/sourceLocation")]
[INFO] [stdout] 18 |     pub source_location: MockSourceLocation,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 19 |     #[serde(rename = "logging.googleapis.com/labels", default)]
[INFO] [stdout] 20 |     pub labels: BTreeMap<String, String>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MockDefaultEvent` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockSpan` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct MockSpan {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockEventWithSpan` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct MockEventWithSpan {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockHttpRequest` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct MockHttpRequest {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockHttpEvent` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct MockHttpEvent {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockSourceLocation` is never constructed
[INFO] [stdout]  --> tests/mocks.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct MockSourceLocation {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockDefaultEvent` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct MockDefaultEvent {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockSpan` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct MockSpan {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockEventWithSpan` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct MockEventWithSpan {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `time`, `target`, `severity`, `labels`, and `insert_id` are never read
[INFO] [stdout]   --> tests/mocks.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct MockDefaultEvent {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] 13 |     #[serde(deserialize_with = "time::serde::rfc3339::deserialize")]
[INFO] [stdout] 14 |     pub time: OffsetDateTime,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 15 |     pub target: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 16 |     pub severity: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub labels: BTreeMap<String, String>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 21 |     #[serde(rename = "logging.googleapis.com/insertId", default)]
[INFO] [stdout] 22 |     pub insert_id: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MockDefaultEvent` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockSpan` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct MockSpan {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockEventWithSpan` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct MockEventWithSpan {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockHttpRequest` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct MockHttpRequest {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockHttpEvent` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct MockHttpEvent {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `file` and `line` are never read
[INFO] [stdout]  --> tests/mocks.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct MockSourceLocation {
[INFO] [stdout]   |            ------------------ fields in this struct
[INFO] [stdout] 7 |     pub file: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 8 |     pub line: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `MockSourceLocation` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `source_location`, `labels`, and `insert_id` are never read
[INFO] [stdout]   --> tests/mocks.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct MockDefaultEvent {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub source_location: MockSourceLocation,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 19 |     #[serde(rename = "logging.googleapis.com/labels", default)]
[INFO] [stdout] 20 |     pub labels: BTreeMap<String, String>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 21 |     #[serde(rename = "logging.googleapis.com/insertId", default)]
[INFO] [stdout] 22 |     pub insert_id: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MockDefaultEvent` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockHttpRequest` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct MockHttpRequest {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockHttpEvent` is never constructed
[INFO] [stdout]   --> tests/mocks.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct MockHttpEvent {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 23.18s
[INFO] running `Command { std: "docker" "inspect" "482a13c272df4f76eb389ba7c4c00d8662b440beccdc3a3e42aad8f61eea4991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "482a13c272df4f76eb389ba7c4c00d8662b440beccdc3a3e42aad8f61eea4991", kill_on_drop: false }`
[INFO] [stdout] 482a13c272df4f76eb389ba7c4c00d8662b440beccdc3a3e42aad8f61eea4991
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fc8995d9c612b547b2231bb62f064ff64f0b93fe1c5f67a5b979fe38d0b2621c
[INFO] running `Command { std: "docker" "start" "-a" "fc8995d9c612b547b2231bb62f064ff64f0b93fe1c5f67a5b979fe38d0b2621c", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stderr]  --> src/google.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     all(tracing_unstable, feature = "valuable"),
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stderr]   = help: consider using a Cargo feature instead
[INFO] [stderr]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]            [lints.rust]
[INFO] [stderr]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stderr]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stderr]    --> src/google.rs:106:23
[INFO] [stderr]     |
[INFO] [stderr] 106 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stderr]    --> src/google.rs:142:23
[INFO] [stderr]     |
[INFO] [stderr] 142 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stderr]    --> src/google.rs:150:11
[INFO] [stderr]     |
[INFO] [stderr] 150 | #[cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stderr]    --> src/google.rs:170:23
[INFO] [stderr]     |
[INFO] [stderr] 170 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stderr]    --> src/google.rs:227:23
[INFO] [stderr]     |
[INFO] [stderr] 227 | #[cfg(any(docsrs, all(tracing_unstable, feature = "valuable")))]
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stderr]   --> src/google.rs:92:19
[INFO] [stderr]    |
[INFO] [stderr] 92 |         #[cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stderr]    --> src/visitor.rs:134:15
[INFO] [stderr]     |
[INFO] [stderr] 134 |     #[cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: `tracing-stackdriver` (lib) generated 8 warnings
[INFO] [stderr] warning: `tracing-stackdriver` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr] warning: fields `file` and `line` are never read
[INFO] [stderr]  --> tests/mocks.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct MockSourceLocation {
[INFO] [stderr]   |            ------------------ fields in this struct
[INFO] [stderr] 7 |     pub file: String,
[INFO] [stderr]   |         ^^^^
[INFO] [stderr] 8 |     pub line: String,
[INFO] [stderr]   |         ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `MockSourceLocation` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `time`, `target`, `severity`, `source_location`, and `insert_id` are never read
[INFO] [stderr]   --> tests/mocks.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct MockDefaultEvent {
[INFO] [stderr]    |            ---------------- fields in this struct
[INFO] [stderr] 13 |     #[serde(deserialize_with = "time::serde::rfc3339::deserialize")]
[INFO] [stderr] 14 |     pub time: OffsetDateTime,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 15 |     pub target: String,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 16 |     pub severity: String,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 17 |     #[serde(rename = "logging.googleapis.com/sourceLocation")]
[INFO] [stderr] 18 |     pub source_location: MockSourceLocation,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 22 |     pub insert_id: Option<String>,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `MockDefaultEvent` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MockSpan` is never constructed
[INFO] [stderr]   --> tests/mocks.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub struct MockSpan {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MockEventWithSpan` is never constructed
[INFO] [stderr]   --> tests/mocks.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub struct MockEventWithSpan {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MockHttpRequest` is never constructed
[INFO] [stderr]   --> tests/mocks.rs:38:12
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub struct MockHttpRequest {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MockHttpEvent` is never constructed
[INFO] [stderr]   --> tests/mocks.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub struct MockHttpEvent {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `time`, `target`, `severity`, `source_location`, and `labels` are never read
[INFO] [stderr]   --> tests/mocks.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct MockDefaultEvent {
[INFO] [stderr]    |            ---------------- fields in this struct
[INFO] [stderr] 13 |     #[serde(deserialize_with = "time::serde::rfc3339::deserialize")]
[INFO] [stderr] 14 |     pub time: OffsetDateTime,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 15 |     pub target: String,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 16 |     pub severity: String,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 17 |     #[serde(rename = "logging.googleapis.com/sourceLocation")]
[INFO] [stderr] 18 |     pub source_location: MockSourceLocation,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 19 |     #[serde(rename = "logging.googleapis.com/labels", default)]
[INFO] [stderr] 20 |     pub labels: BTreeMap<String, String>,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `MockDefaultEvent` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `time`, `target`, `severity`, `labels`, and `insert_id` are never read
[INFO] [stderr]   --> tests/mocks.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct MockDefaultEvent {
[INFO] [stderr]    |            ---------------- fields in this struct
[INFO] [stderr] 13 |     #[serde(deserialize_with = "time::serde::rfc3339::deserialize")]
[INFO] [stderr] 14 |     pub time: OffsetDateTime,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 15 |     pub target: String,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 16 |     pub severity: String,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 20 |     pub labels: BTreeMap<String, String>,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 21 |     #[serde(rename = "logging.googleapis.com/insertId", default)]
[INFO] [stderr] 22 |     pub insert_id: Option<String>,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `MockDefaultEvent` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `tracing_unstable`
[INFO] [stderr]  --> tests/valuable.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![cfg(all(tracing_unstable, feature = "valuable"))]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stderr]   = help: consider using a Cargo feature instead
[INFO] [stderr]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]            [lints.rust]
[INFO] [stderr]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tracing_unstable)'] }
[INFO] [stderr]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tracing_unstable)");` to the top of the `build.rs`
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `source_location`, `labels`, and `insert_id` are never read
[INFO] [stderr]   --> tests/mocks.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct MockDefaultEvent {
[INFO] [stderr]    |            ---------------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 18 |     pub source_location: MockSourceLocation,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 19 |     #[serde(rename = "logging.googleapis.com/labels", default)]
[INFO] [stderr] 20 |     pub labels: BTreeMap<String, String>,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 21 |     #[serde(rename = "logging.googleapis.com/insertId", default)]
[INFO] [stderr] 22 |     pub insert_id: Option<String>,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `MockDefaultEvent` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MockSourceLocation` is never constructed
[INFO] [stderr]  --> tests/mocks.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct MockSourceLocation {
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MockDefaultEvent` is never constructed
[INFO] [stderr]   --> tests/mocks.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct MockDefaultEvent {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `tracing-stackdriver` (test "labels") generated 6 warnings
[INFO] [stderr] warning: `tracing-stackdriver` (test "insert_id") generated 6 warnings (5 duplicates)
[INFO] [stderr] warning: `tracing-stackdriver` (test "source_location") generated 5 warnings (4 duplicates)
[INFO] [stderr] warning: `tracing-stackdriver` (test "valuable") generated 1 warning
[INFO] [stderr] warning: `tracing-stackdriver` (test "default") generated 4 warnings (3 duplicates)
[INFO] [stderr] warning: `tracing-stackdriver` (test "http_request") generated 4 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tracing_stackdriver-7830403fc3906b8e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/default.rs (/opt/rustwide/target/debug/deps/default-28a13e1c1e42e51b)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test handles_enum_severity_override ... ok
[INFO] [stdout] test includes_correct_custom_fields ... ok
[INFO] [stdout] test includes_span ... ok
[INFO] [stdout] test includes_custom_fields_with_dot ... ok
[INFO] [stdout] test handles_stringly_severity_override ... ok
[INFO] [stdout] test includes_correct_timestamps ... ok
[INFO] [stdout] test includes_flattened_fields ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/helpers.rs (/opt/rustwide/target/debug/deps/helpers-265398d865998601)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/http_request.rs (/opt/rustwide/target/debug/deps/http_request-e3c96a16260645ec)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test nests_http_request ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/insert_id.rs (/opt/rustwide/target/debug/deps/insert_id-25310220313fdfe9)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test includes_custom_insert_ids ... ok
[INFO] [stdout] test omits_insert_id_by_default ... ok
[INFO] [stdout] test stringifies_primitive_insert_id_values ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/labels.rs (/opt/rustwide/target/debug/deps/labels-67316d1874ea0b53)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test nests_labels ... ok
[INFO] [stdout] test omits_labels_by_default ... ok
[INFO] [stdout] test stringifies_primitive_label_values ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/mocks.rs (/opt/rustwide/target/debug/deps/mocks-02057faec657901d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/opentelemetry.rs (/opt/rustwide/target/debug/deps/opentelemetry-a0c422659400ef08)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/source_location.rs (/opt/rustwide/target/debug/deps/source_location-07f8170f72ea6ec0)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test includes_source_location ... ok
[INFO] [stdout] test excludes_source_location ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/valuable.rs (/opt/rustwide/target/debug/deps/valuable-641beeac22d84057)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fc8995d9c612b547b2231bb62f064ff64f0b93fe1c5f67a5b979fe38d0b2621c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc8995d9c612b547b2231bb62f064ff64f0b93fe1c5f67a5b979fe38d0b2621c", kill_on_drop: false }`
[INFO] [stdout] fc8995d9c612b547b2231bb62f064ff64f0b93fe1c5f67a5b979fe38d0b2621c