[INFO] fetching crate scouter-tracing 0.25.0...
[INFO] testing scouter-tracing-0.25.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate scouter-tracing 0.25.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate scouter-tracing 0.25.0
[INFO] finished tweaking crates.io crate scouter-tracing 0.25.0
[INFO] tweaked toml for crates.io crate scouter-tracing 0.25.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate scouter-tracing 0.25.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate scouter-tracing 0.25.0 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pythonize v0.27.0
[INFO] [stderr]   Downloaded potato-util v0.19.0
[INFO] [stderr]   Downloaded potato-workflow v0.19.0
[INFO] [stderr]   Downloaded tonic-health v0.14.5
[INFO] [stderr]   Downloaded borrow-or-share v0.2.4
[INFO] [stderr]   Downloaded email_address v0.2.9
[INFO] [stderr]   Downloaded tonic-build v0.14.5
[INFO] [stderr]   Downloaded prost-build v0.14.3
[INFO] [stderr]   Downloaded pyo3-async-runtimes v0.27.0
[INFO] [stderr]   Downloaded winnow v0.6.26
[INFO] [stderr]   Downloaded jsonschema v0.45.0
[INFO] [stderr]   Downloaded indicatif v0.18.4
[INFO] [stderr]   Downloaded simsimd v6.5.16
[INFO] [stderr]   Downloaded scouter-evaluate v0.25.0
[INFO] [stderr]   Downloaded noisy_float v0.2.1
[INFO] [stderr]   Downloaded opentelemetry-otlp v0.31.0
[INFO] [stderr]   Downloaded fluent-uri v0.4.1
[INFO] [stderr]   Downloaded referencing v0.45.0
[INFO] [stderr]   Downloaded scouter-settings v0.25.0
[INFO] [stderr]   Downloaded unicode-general-category v1.1.0
[INFO] [stderr]   Downloaded scouter-semver v0.25.0
[INFO] [stderr]   Downloaded scouter-state v0.25.0
[INFO] [stderr]   Downloaded rusty-logging v0.6.0
[INFO] [stderr]   Downloaded opentelemetry-stdout v0.31.0
[INFO] [stderr]   Downloaded cron v0.15.0
[INFO] [stderr]   Downloaded scouter-dispatch v0.25.0
[INFO] [stderr]   Downloaded scouter-http v0.25.0
[INFO] [stderr]   Downloaded uuid-simd v0.8.0
[INFO] [stderr]   Downloaded scouter-macro v0.25.0
[INFO] [stderr]   Downloaded gcloud-metadata v1.0.2
[INFO] [stderr]   Downloaded potato-provider v0.19.0
[INFO] [stderr]   Downloaded tonic-prost-build v0.14.5
[INFO] [stderr]   Downloaded num-cmp v0.1.0
[INFO] [stderr]   Downloaded dynfmt v0.1.5
[INFO] [stderr]   Downloaded potatohead-macro v0.19.0
[INFO] [stderr]   Downloaded token-source v1.0.0
[INFO] [stderr]   Downloaded colored_json v5.0.0
[INFO] [stderr]   Downloaded potato-head v0.19.0
[INFO] [stderr]   Downloaded pulldown-cmark-to-cmark v22.0.0
[INFO] [stderr]   Downloaded potato-agent v0.19.0
[INFO] [stderr]   Downloaded scouter-tonic v0.25.0
[INFO] [stderr]   Downloaded scouter-profile v0.25.0
[INFO] [stderr]   Downloaded scouter-drift v0.25.0
[INFO] [stderr]   Downloaded scouter-events v0.25.0
[INFO] [stderr]   Downloaded pulldown-cmark v0.13.1
[INFO] [stderr]   Downloaded fraction v0.15.3
[INFO] [stderr]   Downloaded scouter-types v0.25.0
[INFO] [stderr]   Downloaded serde_qs v0.15.0
[INFO] [stderr]   Downloaded potato-type v0.19.0
[INFO] [stderr]   Downloaded ndarray-stats v0.7.0
[INFO] [stderr]   Downloaded opentelemetry-proto v0.31.0
[INFO] [stderr]   Downloaded gcloud-auth v1.3.0
[INFO] [stderr]   Downloaded opentelemetry_sdk v0.31.0
[INFO] [stderr]   Downloaded potato-state v0.19.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f848c82c6e72bfcb59a3af9bf3cd369f181dd92c5c169175b2fea01ad052827
[INFO] running `Command { std: "docker" "start" "-a" "7f848c82c6e72bfcb59a3af9bf3cd369f181dd92c5c169175b2fea01ad052827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f848c82c6e72bfcb59a3af9bf3cd369f181dd92c5c169175b2fea01ad052827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f848c82c6e72bfcb59a3af9bf3cd369f181dd92c5c169175b2fea01ad052827", kill_on_drop: false }`
[INFO] [stdout] 7f848c82c6e72bfcb59a3af9bf3cd369f181dd92c5c169175b2fea01ad052827
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b687f4a11cc557c85d8c0b64258366dc4d4e871a236f2a0fc6b69ceb29c8eb7a
[INFO] running `Command { std: "docker" "start" "-a" "b687f4a11cc557c85d8c0b64258366dc4d4e871a236f2a0fc6b69ceb29c8eb7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling foldhash v0.2.0
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling zerocopy v0.8.42
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling target-lexicon v0.13.5
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling http v1.4.0
[INFO] [stderr]    Compiling aws-lc-rs v1.16.1
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling rustls v0.23.37
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.23
[INFO] [stderr]    Compiling ipnet v2.12.0
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling webpki-roots v1.0.6
[INFO] [stderr]    Compiling arrow-schema v57.3.0
[INFO] [stderr]    Compiling indoc v2.0.7
[INFO] [stderr]    Compiling num-conv v0.2.0
[INFO] [stderr]    Compiling unindent v0.2.4
[INFO] [stderr]    Compiling time-macros v0.2.27
[INFO] [stderr]    Compiling ref-cast v1.0.25
[INFO] [stderr]    Compiling lexical-util v1.0.7
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling pem v3.0.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling pyo3-build-config v0.27.2
[INFO] [stderr]    Compiling bytecount v0.6.9
[INFO] [stderr]    Compiling unicode-general-category v1.1.0
[INFO] [stderr]    Compiling signature v2.2.0
[INFO] [stderr]    Compiling matchit v0.8.4
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling cc v1.2.57
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling uuid v1.22.0
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling time v0.3.47
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling axum-core v0.5.6
[INFO] [stderr]    Compiling lexical-parse-integer v1.0.6
[INFO] [stderr]    Compiling lexical-write-integer v1.0.6
[INFO] [stderr]    Compiling borrow-or-share v0.2.4
[INFO] [stderr]    Compiling lexical-parse-float v1.0.6
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling lexical-write-float v1.0.6
[INFO] [stderr]    Compiling cmake v0.1.57
[INFO] [stderr]    Compiling vte v0.14.1
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling home v0.5.12
[INFO] [stderr]    Compiling urlencoding v2.1.3
[INFO] [stderr]    Compiling vsimd v0.8.0
[INFO] [stderr]    Compiling outref v0.5.2
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling pyo3-ffi v0.27.2
[INFO] [stderr]    Compiling pyo3-macros-backend v0.27.2
[INFO] [stderr]    Compiling pyo3 v0.27.2
[INFO] [stderr]    Compiling safe_arch v0.7.4
[INFO] [stderr]    Compiling lexical-core v1.0.6
[INFO] [stderr]    Compiling flatbuffers v25.12.19
[INFO] [stderr]    Compiling fraction v0.15.3
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling num-cmp v0.1.0
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling uuid-simd v0.8.0
[INFO] [stderr]    Compiling fancy-regex v0.17.0
[INFO] [stderr]    Compiling owo-colors v4.3.0
[INFO] [stderr]    Compiling aws-lc-sys v0.38.0
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling ndarray v0.17.2
[INFO] [stderr]    Compiling wide v0.7.33
[INFO] [stderr]    Compiling const-hex v1.18.1
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling simba v0.9.1
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling noisy_float v0.2.1
[INFO] [stderr]    Compiling winnow v0.6.26
[INFO] [stderr]    Compiling ansitok v0.3.0
[INFO] [stderr]    Compiling strum v0.27.2
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling ansi-str v0.9.0
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling testing_table v0.3.0
[INFO] [stderr]    Compiling pulldown-cmark v0.13.1
[INFO] [stderr]    Compiling papergrid v0.17.0
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling foldhash v0.1.5
[INFO] [stderr]    Compiling bytes v1.11.1
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/562dee4820c458d823175268e41601d4c060588a/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.117/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=38efe9c620ca8d0f -C extra-filename=-ae6c806947fc9697 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d4cb564e807a9cd7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-aa2c5b8519914b46.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-8c98a1a0e58216a9.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b687f4a11cc557c85d8c0b64258366dc4d4e871a236f2a0fc6b69ceb29c8eb7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b687f4a11cc557c85d8c0b64258366dc4d4e871a236f2a0fc6b69ceb29c8eb7a", kill_on_drop: false }`
[INFO] [stdout] b687f4a11cc557c85d8c0b64258366dc4d4e871a236f2a0fc6b69ceb29c8eb7a