[INFO] fetching crate tracing-ext-ffi-subscriber 0.2.0...
[INFO] testing tracing-ext-ffi-subscriber-0.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate tracing-ext-ffi-subscriber 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tracing-ext-ffi-subscriber 0.2.0
[INFO] finished tweaking crates.io crate tracing-ext-ffi-subscriber 0.2.0
[INFO] tweaked toml for crates.io crate tracing-ext-ffi-subscriber 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tracing-ext-ffi-subscriber 0.2.0 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] crate crates.io crate tracing-ext-ffi-subscriber 0.2.0 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87d2382be3ab57760ebc43791fd7fac3dd69a44f3d315a1499bbb855921758eb
[INFO] running `Command { std: "docker" "start" "-a" "87d2382be3ab57760ebc43791fd7fac3dd69a44f3d315a1499bbb855921758eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87d2382be3ab57760ebc43791fd7fac3dd69a44f3d315a1499bbb855921758eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87d2382be3ab57760ebc43791fd7fac3dd69a44f3d315a1499bbb855921758eb", kill_on_drop: false }`
[INFO] [stdout] 87d2382be3ab57760ebc43791fd7fac3dd69a44f3d315a1499bbb855921758eb
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eff8e7ef20035756085a496ec0d05cc7361463d53f0029c113be51a8267630a2
[INFO] running `Command { std: "docker" "start" "-a" "eff8e7ef20035756085a496ec0d05cc7361463d53f0029c113be51a8267630a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]    Compiling os_str_bytes v6.5.1
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling serde_json v1.0.103
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling cbindgen v0.24.5
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.10
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr]    Compiling quote v1.0.31
[INFO] [stderr]    Compiling syn v2.0.26
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling tracing-ext-ffi-subscriber v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.16s
[INFO] running `Command { std: "docker" "inspect" "eff8e7ef20035756085a496ec0d05cc7361463d53f0029c113be51a8267630a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eff8e7ef20035756085a496ec0d05cc7361463d53f0029c113be51a8267630a2", kill_on_drop: false }`
[INFO] [stdout] eff8e7ef20035756085a496ec0d05cc7361463d53f0029c113be51a8267630a2
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0f9a77d60215dc286fe4e08bbb17e50f7edd35a4a536d74367397dd71e9affa
[INFO] running `Command { std: "docker" "start" "-a" "f0f9a77d60215dc286fe4e08bbb17e50f7edd35a4a536d74367397dd71e9affa", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-ext-ffi-subscriber v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "f0f9a77d60215dc286fe4e08bbb17e50f7edd35a4a536d74367397dd71e9affa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0f9a77d60215dc286fe4e08bbb17e50f7edd35a4a536d74367397dd71e9affa", kill_on_drop: false }`
[INFO] [stdout] f0f9a77d60215dc286fe4e08bbb17e50f7edd35a4a536d74367397dd71e9affa
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 30b5cd42b2ddb3253120e1e4cda1704164038a7142162a6efb360ac4176ec8de
[INFO] running `Command { std: "docker" "start" "-a" "30b5cd42b2ddb3253120e1e4cda1704164038a7142162a6efb360ac4176ec8de", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tracing_ext_ffi_subscriber-4e4c9b1f1e474f8a)
[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 tracing_ext_ffi_subscriber
[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" "30b5cd42b2ddb3253120e1e4cda1704164038a7142162a6efb360ac4176ec8de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30b5cd42b2ddb3253120e1e4cda1704164038a7142162a6efb360ac4176ec8de", kill_on_drop: false }`
[INFO] [stdout] 30b5cd42b2ddb3253120e1e4cda1704164038a7142162a6efb360ac4176ec8de