[INFO] fetching crate folo_ffi 0.1.6...
[INFO] testing folo_ffi-0.1.6 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate folo_ffi 0.1.6 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate folo_ffi 0.1.6
[INFO] finished tweaking crates.io crate folo_ffi 0.1.6
[INFO] tweaked toml for crates.io crate folo_ffi 0.1.6 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate folo_ffi 0.1.6 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 folo_ffi 0.1.6 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e45e8bb88cfca500d5d61ef9d6d4ad8a41020bf1a43b6aec45aa36b5ff6aca7d
[INFO] running `Command { std: "docker" "start" "-a" "e45e8bb88cfca500d5d61ef9d6d4ad8a41020bf1a43b6aec45aa36b5ff6aca7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e45e8bb88cfca500d5d61ef9d6d4ad8a41020bf1a43b6aec45aa36b5ff6aca7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e45e8bb88cfca500d5d61ef9d6d4ad8a41020bf1a43b6aec45aa36b5ff6aca7d", kill_on_drop: false }`
[INFO] [stdout] e45e8bb88cfca500d5d61ef9d6d4ad8a41020bf1a43b6aec45aa36b5ff6aca7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 704c1e3a156711b18c60e7e1bc06e2f2cd3dba6c31fe3e3246bace278c09807e
[INFO] running `Command { std: "docker" "start" "-a" "704c1e3a156711b18c60e7e1bc06e2f2cd3dba6c31fe3e3246bace278c09807e", kill_on_drop: false }`
[INFO] [stderr]    Compiling folo_ffi v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "704c1e3a156711b18c60e7e1bc06e2f2cd3dba6c31fe3e3246bace278c09807e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "704c1e3a156711b18c60e7e1bc06e2f2cd3dba6c31fe3e3246bace278c09807e", kill_on_drop: false }`
[INFO] [stdout] 704c1e3a156711b18c60e7e1bc06e2f2cd3dba6c31fe3e3246bace278c09807e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b995de72130fa1d92b44fbf3cc7b4861f08358180d110fb80aa27ae20098fc7f
[INFO] running `Command { std: "docker" "start" "-a" "b995de72130fa1d92b44fbf3cc7b4861f08358180d110fb80aa27ae20098fc7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling mutants v0.0.3
[INFO] [stderr]    Compiling folo_ffi v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "b995de72130fa1d92b44fbf3cc7b4861f08358180d110fb80aa27ae20098fc7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b995de72130fa1d92b44fbf3cc7b4861f08358180d110fb80aa27ae20098fc7f", kill_on_drop: false }`
[INFO] [stdout] b995de72130fa1d92b44fbf3cc7b4861f08358180d110fb80aa27ae20098fc7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7d00d4afc69e9347ed5e9df1eab33bd08141722707c892642174f4f9f62a3e32
[INFO] running `Command { std: "docker" "start" "-a" "7d00d4afc69e9347ed5e9df1eab33bd08141722707c892642174f4f9f62a3e32", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/folo_ffi-f585a4edb9e3d920)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test native_buffer::tests::from_items ... ok
[INFO] [stdout] test native_buffer::tests::smoke_test ... ok
[INFO] [stderr]    Doc-tests folo_ffi
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "7d00d4afc69e9347ed5e9df1eab33bd08141722707c892642174f4f9f62a3e32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d00d4afc69e9347ed5e9df1eab33bd08141722707c892642174f4f9f62a3e32", kill_on_drop: false }`
[INFO] [stdout] 7d00d4afc69e9347ed5e9df1eab33bd08141722707c892642174f4f9f62a3e32