[INFO] fetching crate tower-trace-metrics 0.1.0...
[INFO] testing tower-trace-metrics-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate tower-trace-metrics 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate tower-trace-metrics 0.1.0
[INFO] finished tweaking crates.io crate tower-trace-metrics 0.1.0
[INFO] tweaked toml for crates.io crate tower-trace-metrics 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tower-trace-metrics 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages to latest compatible versions
[INFO] [stderr]       Adding http v0.2.12 (available: v1.3.1)
[INFO] [stderr]       Adding metrics v0.20.1 (available: v0.24.2)
[INFO] [stderr]       Adding tower-http v0.3.5 (available: v0.6.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 954b48f36e0737c6d5e206cda8f0e41e090b58414070524c5ced0926966a8ff7
[INFO] running `Command { std: "docker" "start" "-a" "954b48f36e0737c6d5e206cda8f0e41e090b58414070524c5ced0926966a8ff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "954b48f36e0737c6d5e206cda8f0e41e090b58414070524c5ced0926966a8ff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "954b48f36e0737c6d5e206cda8f0e41e090b58414070524c5ced0926966a8ff7", kill_on_drop: false }`
[INFO] [stdout] 954b48f36e0737c6d5e206cda8f0e41e090b58414070524c5ced0926966a8ff7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb249899a0fb5e9e024121b93f18af624cb1bb7a9f92e69f63aa017a1c712744
[INFO] running `Command { std: "docker" "start" "-a" "eb249899a0fb5e9e024121b93f18af624cb1bb7a9f92e69f63aa017a1c712744", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling portable-atomic v1.11.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling portable-atomic v0.3.20
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling metrics v0.20.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tower-layer v0.3.3
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling http-range-header v0.3.1
[INFO] [stderr]    Compiling tower-service v0.3.3
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling metrics-macros v0.6.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tower-http v0.3.5
[INFO] [stderr]    Compiling tower-trace-metrics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.22s
[INFO] running `Command { std: "docker" "inspect" "eb249899a0fb5e9e024121b93f18af624cb1bb7a9f92e69f63aa017a1c712744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb249899a0fb5e9e024121b93f18af624cb1bb7a9f92e69f63aa017a1c712744", kill_on_drop: false }`
[INFO] [stdout] eb249899a0fb5e9e024121b93f18af624cb1bb7a9f92e69f63aa017a1c712744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31bd3641cff74675e06e2e9dc593451e2ead1629647d668cf1c8657fa3e51d36
[INFO] running `Command { std: "docker" "start" "-a" "31bd3641cff74675e06e2e9dc593451e2ead1629647d668cf1c8657fa3e51d36", kill_on_drop: false }`
[INFO] [stderr]    Compiling tower-trace-metrics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "31bd3641cff74675e06e2e9dc593451e2ead1629647d668cf1c8657fa3e51d36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31bd3641cff74675e06e2e9dc593451e2ead1629647d668cf1c8657fa3e51d36", kill_on_drop: false }`
[INFO] [stdout] 31bd3641cff74675e06e2e9dc593451e2ead1629647d668cf1c8657fa3e51d36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 12f624d526692553e79e1fb0971264fc5bda175c43b20a793fa7e1508bebb32f
[INFO] running `Command { std: "docker" "start" "-a" "12f624d526692553e79e1fb0971264fc5bda175c43b20a793fa7e1508bebb32f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tower_trace_metrics-1f6b59d1e13ed18b)
[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 tower_trace_metrics
[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" "12f624d526692553e79e1fb0971264fc5bda175c43b20a793fa7e1508bebb32f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12f624d526692553e79e1fb0971264fc5bda175c43b20a793fa7e1508bebb32f", kill_on_drop: false }`
[INFO] [stdout] 12f624d526692553e79e1fb0971264fc5bda175c43b20a793fa7e1508bebb32f