[INFO] fetching crate tracing-flat-json 0.1.0...
[INFO] testing tracing-flat-json-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate tracing-flat-json 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate tracing-flat-json 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tracing-flat-json 0.1.0
[INFO] tweaked toml for crates.io crate tracing-flat-json 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tracing-flat-json 0.1.0 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] crate crates.io crate tracing-flat-json 0.1.0 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" "+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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fd33340c4b5a9c203ebb1d887f8b3d9cc179626f629245dd599699f1cacde960
[INFO] running `Command { std: "docker" "start" "-a" "fd33340c4b5a9c203ebb1d887f8b3d9cc179626f629245dd599699f1cacde960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd33340c4b5a9c203ebb1d887f8b3d9cc179626f629245dd599699f1cacde960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd33340c4b5a9c203ebb1d887f8b3d9cc179626f629245dd599699f1cacde960", kill_on_drop: false }`
[INFO] [stdout] fd33340c4b5a9c203ebb1d887f8b3d9cc179626f629245dd599699f1cacde960
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 620e45121dcbae6413c7833528a0e1561754c524bafe430f213b0f8c896f8689
[INFO] running `Command { std: "docker" "start" "-a" "620e45121dcbae6413c7833528a0e1561754c524bafe430f213b0f8c896f8689", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling deranged v0.5.5
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling tracing-flat-json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.21s
[INFO] running `Command { std: "docker" "inspect" "620e45121dcbae6413c7833528a0e1561754c524bafe430f213b0f8c896f8689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "620e45121dcbae6413c7833528a0e1561754c524bafe430f213b0f8c896f8689", kill_on_drop: false }`
[INFO] [stdout] 620e45121dcbae6413c7833528a0e1561754c524bafe430f213b0f8c896f8689
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 4f36b05f1c2993a9513136e20cac90c786d2623e0db9f0874e9ee6abc7a4180c
[INFO] running `Command { std: "docker" "start" "-a" "4f36b05f1c2993a9513136e20cac90c786d2623e0db9f0874e9ee6abc7a4180c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling cc v1.2.43
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling rustls-pki-types v1.12.0
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling nu-ansi-term v0.50.3
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling rustls v0.23.34
[INFO] [stderr]    Compiling clap_lex v0.7.6
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling clap_builder v4.5.50
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling http v1.3.1
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling criterion-plot v0.6.0
[INFO] [stderr]    Compiling ureq-proto v0.5.2
[INFO] [stderr]    Compiling flate2 v1.1.5
[INFO] [stderr]    Compiling clap v4.5.50
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling webpki-roots v1.0.3
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling uuid v1.18.1
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling rustls-webpki v0.103.7
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling opentelemetry v0.30.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling tracing-serde v0.2.0
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling criterion v0.7.0
[INFO] [stderr]    Compiling opentelemetry_sdk v0.30.0
[INFO] [stderr]    Compiling json-subscriber v0.2.6
[INFO] [stderr]    Compiling tracing-flat-json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling ureq v3.1.2
[INFO] [stderr]    Compiling tracing-opentelemetry v0.31.0
[INFO] [stderr]    Compiling opentelemetry-stdout v0.30.0
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "4f36b05f1c2993a9513136e20cac90c786d2623e0db9f0874e9ee6abc7a4180c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f36b05f1c2993a9513136e20cac90c786d2623e0db9f0874e9ee6abc7a4180c", kill_on_drop: false }`
[INFO] [stdout] 4f36b05f1c2993a9513136e20cac90c786d2623e0db9f0874e9ee6abc7a4180c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ed323b5febd01dd0a77da6476fed8338eafb6f5368d83e9cb08f0fe1bb4387d8
[INFO] running `Command { std: "docker" "start" "-a" "ed323b5febd01dd0a77da6476fed8338eafb6f5368d83e9cb08f0fe1bb4387d8", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tracing_flat_json-7ae4d7f0b31b31e1)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::no_dup_fields ... ok
[INFO] [stdout] test tests::tracing_log ... ok
[INFO] [stdout] test tests::record_fields ... ok
[INFO] [stdout] test tests::field_values ... ok
[INFO] [stdout] test tests::no_extension ... ok
[INFO] [stdout] test tests::field_order ... ok
[INFO] [stderr]    Doc-tests tracing_flat_json
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.73s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ed323b5febd01dd0a77da6476fed8338eafb6f5368d83e9cb08f0fe1bb4387d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed323b5febd01dd0a77da6476fed8338eafb6f5368d83e9cb08f0fe1bb4387d8", kill_on_drop: false }`
[INFO] [stdout] ed323b5febd01dd0a77da6476fed8338eafb6f5368d83e9cb08f0fe1bb4387d8