[INFO] fetching crate rootcause-tracing 0.12.1...
[INFO] testing rootcause-tracing-0.12.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rootcause-tracing 0.12.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rootcause-tracing 0.12.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rootcause-tracing 0.12.1
[INFO] tweaked toml for crates.io crate rootcause-tracing 0.12.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rootcause-tracing 0.12.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rootcause-tracing 0.12.1 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca21cb1065c36390658967b1e17608ad8bbebfd1a5d7d6caa108773fa1085182
[INFO] running `Command { std: "docker" "start" "-a" "ca21cb1065c36390658967b1e17608ad8bbebfd1a5d7d6caa108773fa1085182", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca21cb1065c36390658967b1e17608ad8bbebfd1a5d7d6caa108773fa1085182", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca21cb1065c36390658967b1e17608ad8bbebfd1a5d7d6caa108773fa1085182", kill_on_drop: false }`
[INFO] [stdout] ca21cb1065c36390658967b1e17608ad8bbebfd1a5d7d6caa108773fa1085182
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b282805846249e92d2504ba5feecdade0e38b5b289743a0b4a85a1abea3a71cc
[INFO] running `Command { std: "docker" "start" "-a" "b282805846249e92d2504ba5feecdade0e38b5b289743a0b4a85a1abea3a71cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling triomphe v0.1.15
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling tracing-subscriber v0.3.22
[INFO] [stderr]    Compiling rootcause-internals v0.12.1
[INFO] [stderr]    Compiling rootcause v0.12.1
[INFO] [stderr]    Compiling rootcause-tracing v0.12.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.18s
[INFO] running `Command { std: "docker" "inspect" "b282805846249e92d2504ba5feecdade0e38b5b289743a0b4a85a1abea3a71cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b282805846249e92d2504ba5feecdade0e38b5b289743a0b4a85a1abea3a71cc", kill_on_drop: false }`
[INFO] [stdout] b282805846249e92d2504ba5feecdade0e38b5b289743a0b4a85a1abea3a71cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6af245ab99f144b5e62520d3dc965c1f659ea105addd1ab833b91c72584bd397
[INFO] running `Command { std: "docker" "start" "-a" "6af245ab99f144b5e62520d3dc965c1f659ea105addd1ab833b91c72584bd397", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-subscriber v0.3.22
[INFO] [stderr]    Compiling syn v2.0.116
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling rootcause-tracing v0.12.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.60s
[INFO] running `Command { std: "docker" "inspect" "6af245ab99f144b5e62520d3dc965c1f659ea105addd1ab833b91c72584bd397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6af245ab99f144b5e62520d3dc965c1f659ea105addd1ab833b91c72584bd397", kill_on_drop: false }`
[INFO] [stdout] 6af245ab99f144b5e62520d3dc965c1f659ea105addd1ab833b91c72584bd397
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1e891cac0293a1f952b6d8c144872deaca6d69babd5745df4164c4f1a663d69f
[INFO] running `Command { std: "docker" "start" "-a" "1e891cac0293a1f952b6d8c144872deaca6d69babd5745df4164c4f1a663d69f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rootcause_tracing-e692dee1164ac5d9)
[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]    Doc-tests rootcause_tracing
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/lib.rs - SpanCollector (line 258) ... ok
[INFO] [stdout] test src/lib.rs - (line 63) ... ok
[INFO] [stdout] test src/lib.rs - RootcauseLayer (line 204) ... ok
[INFO] [stdout] test src/lib.rs - SpanCollector (line 270) ... ok
[INFO] [stdout] test src/lib.rs - SpanCollector::new (line 331) ... ok
[INFO] [stdout] test src/lib.rs - SpanExt (line 392) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/lib.rs - SpanExt::attach_span (line 420) ... ok
[INFO] [stdout] test src/lib.rs - SpanExt (line 404) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.90s; merged doctests compilation took 0.83s
[INFO] running `Command { std: "docker" "inspect" "1e891cac0293a1f952b6d8c144872deaca6d69babd5745df4164c4f1a663d69f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e891cac0293a1f952b6d8c144872deaca6d69babd5745df4164c4f1a663d69f", kill_on_drop: false }`
[INFO] [stdout] 1e891cac0293a1f952b6d8c144872deaca6d69babd5745df4164c4f1a663d69f
