[INFO] cloning repository https://github.com/ephemeraHQ/rust-tracing-tech-talk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ephemeraHQ/rust-tracing-tech-talk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FephemeraHQ%2Frust-tracing-tech-talk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FephemeraHQ%2Frust-tracing-tech-talk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad47d9836438ae0fcfd669b8f391be7a49559081
[INFO] checking ephemeraHQ/rust-tracing-tech-talk against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FephemeraHQ%2Frust-tracing-tech-talk" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/ephemeraHQ/rust-tracing-tech-talk
[INFO] finished tweaking git repo https://github.com/ephemeraHQ/rust-tracing-tech-talk
[INFO] tweaked toml for git repo https://github.com/ephemeraHQ/rust-tracing-tech-talk written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ephemeraHQ/rust-tracing-tech-talk on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ephemeraHQ/rust-tracing-tech-talk 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2024 which implies `resolver = "3"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2024 resolver, specify `workspace.resolver = "3"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lipsum v0.9.1
[INFO] [stderr]   Downloaded humantime v2.2.0
[INFO] [stderr]   Downloaded thiserror v2.0.15
[INFO] [stderr]   Downloaded console-subscriber v0.4.1
[INFO] [stderr]   Downloaded tracing-flame v0.2.0
[INFO] [stderr]   Downloaded console-api v0.8.1
[INFO] [stderr]   Downloaded hdrhistogram v7.5.4
[INFO] [stderr]   Downloaded thiserror-impl v2.0.15
[INFO] [stderr]   Downloaded bitflags v2.9.2
[INFO] [stderr]   Downloaded tracing-forest v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88bf6cf835451fc9ab71231070e4bb3c46e5d4e41b07a7e23d59f4ef649d7506
[INFO] running `Command { std: "docker" "start" "-a" "88bf6cf835451fc9ab71231070e4bb3c46e5d4e41b07a7e23d59f4ef649d7506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88bf6cf835451fc9ab71231070e4bb3c46e5d4e41b07a7e23d59f4ef649d7506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88bf6cf835451fc9ab71231070e4bb3c46e5d4e41b07a7e23d59f4ef649d7506", kill_on_drop: false }`
[INFO] [stdout] 88bf6cf835451fc9ab71231070e4bb3c46e5d4e41b07a7e23d59f4ef649d7506
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 997537321b7170ffc51617c0ccd8796a43f8082b548a2b36b9ebf828967ae6de
[INFO] running `Command { std: "docker" "start" "-a" "997537321b7170ffc51617c0ccd8796a43f8082b548a2b36b9ebf828967ae6de", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2024 which implies `resolver = "3"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2024 resolver, specify `workspace.resolver = "3"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]    Compiling thiserror v2.0.15
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]    Compiling thiserror-impl v2.0.15
[INFO] [stderr]     Checking indexmap v2.10.0
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking sync_wrapper v1.0.2
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]     Checking axum-core v0.4.5
[INFO] [stderr]     Checking tower v0.5.2
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]     Checking matchit v0.7.3
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking humantime v2.2.0
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking lipsum v0.9.1
[INFO] [stderr]     Checking hdrhistogram v7.5.4
[INFO] [stderr]    Compiling prost-derive v0.13.5
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking axum v0.7.9
[INFO] [stderr]     Checking serde_json v1.0.142
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking prost v0.13.5
[INFO] [stderr]     Checking prost-types v0.13.5
[INFO] [stderr]     Checking tracing-forest v0.2.0
[INFO] [stderr]     Checking tracing-flame v0.2.0
[INFO] [stderr]     Checking threads v0.1.0 (/opt/rustwide/workdir/threads)
[INFO] [stderr]     Checking basic v0.1.0 (/opt/rustwide/workdir/basic)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> basic/src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::thread;
[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 imports: `Level`, `debug`, `error`, `span`, `trace`, and `warn`
[INFO] [stdout]   --> basic/src/main.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tracing::{Level, debug, error, info, info_span, span, trace, warn};
[INFO] [stdout]    |               ^^^^^  ^^^^^  ^^^^^                   ^^^^  ^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> basic/src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::thread;
[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 imports: `Level`, `debug`, `error`, `span`, `trace`, and `warn`
[INFO] [stdout]   --> basic/src/main.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tracing::{Level, debug, error, info, info_span, span, trace, warn};
[INFO] [stdout]    |               ^^^^^  ^^^^^  ^^^^^                   ^^^^  ^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `scope_example` is never used
[INFO] [stdout]   --> basic/src/main.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn scope_example() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `scope_example` is never used
[INFO] [stdout]   --> basic/src/main.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn scope_example() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio-util v0.7.16
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stderr]     Checking async-await v0.1.0 (/opt/rustwide/workdir/async-await)
[INFO] [stderr]     Checking composing-layers v0.1.0 (/opt/rustwide/workdir/composing-layers)
[INFO] [stderr]     Checking h2 v0.4.12
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking hyper v1.7.0
[INFO] [stderr]     Checking hyper-util v0.1.16
[INFO] [stderr]     Checking hyper-timeout v0.5.2
[INFO] [stderr]     Checking tonic v0.12.3
[INFO] [stderr]     Checking console-api v0.8.1
[INFO] [stderr]     Checking console-subscriber v0.4.1
[INFO] [stderr]     Checking playground v0.1.0 (/opt/rustwide/workdir/playground)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.22s
[INFO] running `Command { std: "docker" "inspect" "997537321b7170ffc51617c0ccd8796a43f8082b548a2b36b9ebf828967ae6de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "997537321b7170ffc51617c0ccd8796a43f8082b548a2b36b9ebf828967ae6de", kill_on_drop: false }`
[INFO] [stdout] 997537321b7170ffc51617c0ccd8796a43f8082b548a2b36b9ebf828967ae6de
