[INFO] fetching crate fffl 1.2.0...
[INFO] testing fffl-1.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate fffl 1.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate fffl 1.2.0
[INFO] finished tweaking crates.io crate fffl 1.2.0
[INFO] tweaked toml for crates.io crate fffl 1.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fffl 1.2.0 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 fffl 1.2.0 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 1182005d121191587f4963077a067030bd4689a1102af17f52344cab68de807a
[INFO] running `Command { std: "docker" "start" "-a" "1182005d121191587f4963077a067030bd4689a1102af17f52344cab68de807a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1182005d121191587f4963077a067030bd4689a1102af17f52344cab68de807a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1182005d121191587f4963077a067030bd4689a1102af17f52344cab68de807a", kill_on_drop: false }`
[INFO] [stdout] 1182005d121191587f4963077a067030bd4689a1102af17f52344cab68de807a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] daca0f961782f57350bb1d2d852bb75134663b8151eef68bee277350707fe780
[INFO] running `Command { std: "docker" "start" "-a" "daca0f961782f57350bb1d2d852bb75134663b8151eef68bee277350707fe780", kill_on_drop: false }`
[INFO] [stderr]    Compiling fffl v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "daca0f961782f57350bb1d2d852bb75134663b8151eef68bee277350707fe780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daca0f961782f57350bb1d2d852bb75134663b8151eef68bee277350707fe780", kill_on_drop: false }`
[INFO] [stdout] daca0f961782f57350bb1d2d852bb75134663b8151eef68bee277350707fe780
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] def18757be78adfbe66e5a6cd95f18eceb4eaa02bc787ce8a064dc084387c274
[INFO] running `Command { std: "docker" "start" "-a" "def18757be78adfbe66e5a6cd95f18eceb4eaa02bc787ce8a064dc084387c274", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling clap_builder v4.5.39
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling clap v4.5.39
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.6.0
[INFO] [stderr]    Compiling fffl v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 20.21s
[INFO] running `Command { std: "docker" "inspect" "def18757be78adfbe66e5a6cd95f18eceb4eaa02bc787ce8a064dc084387c274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "def18757be78adfbe66e5a6cd95f18eceb4eaa02bc787ce8a064dc084387c274", kill_on_drop: false }`
[INFO] [stdout] def18757be78adfbe66e5a6cd95f18eceb4eaa02bc787ce8a064dc084387c274
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7a8cf9f44924645889e3bf03a5d3e05fbbfa822fd10f6345f27d7f7ec2a55a96
[INFO] running `Command { std: "docker" "start" "-a" "7a8cf9f44924645889e3bf03a5d3e05fbbfa822fd10f6345f27d7f7ec2a55a96", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fffl-549522dc00dc10d7)
[INFO] [stdout] 
[INFO] [stdout] running 46 tests
[INFO] [stdout] test freelist::clear ... ok
[INFO] [stdout] test freelist::free ... ok
[INFO] [stdout] test freelist::filled ... ok
[INFO] [stdout] test freelist::compactify ... ok
[INFO] [stdout] test freelist::double_ended_iter ... ok
[INFO] [stdout] test freelist::from_vec ... ok
[INFO] [stdout] test freelist::get ... ok
[INFO] [stdout] test freelist::get_unchecked_mut ... ok
[INFO] [stdout] test freelist::from_arr ... ok
[INFO] [stdout] test freelist::index ... ok
[INFO] [stdout] test freelist::push ... ok
[INFO] [stdout] test freelist::remove_unchecked ... ok
[INFO] [stdout] test freelist::reserve ... ok
[INFO] [stdout] test freelist::new ... ok
[INFO] [stdout] test freelist::to_vec ... ok
[INFO] [stdout] test freelist::into_iter ... ok
[INFO] [stdout] test freelist::get_mut ... ok
[INFO] [stdout] test freelist::get_unchecked ... ok
[INFO] [stdout] test freelist::index_mut ... ok
[INFO] [stdout] test freelist::next_available ... ok
[INFO] [stdout] test freelist::remove ... ok
[INFO] [stdout] test freelist::remove_then_push ... ok
[INFO] [stdout] test freelist::remove_then_push_multiple ... ok
[INFO] [stdout] test iterators::iter_mut::tests::next_back ... ok
[INFO] [stdout] test iterators::iter_mut::tests::size_hint ... ok
[INFO] [stdout] test iterators::iter_mut::tests::update_value ... ok
[INFO] [stdout] test slot::slot::as_value_unchecked ... ok
[INFO] [stdout] test slot::slot::as_value_unchecked_mut ... ok
[INFO] [stdout] test slot::slot::from_slot ... ok
[INFO] [stdout] test slot::slot::from_t ... ok
[INFO] [stdout] test iterators::iter::tests::next ... ok
[INFO] [stdout] test iterators::into_iter::tests::size_hint ... ok
[INFO] [stdout] test freelist::size ... ok
[INFO] [stdout] test iterators::iter::tests::next_back ... ok
[INFO] [stdout] test freelist::with_capacity ... ok
[INFO] [stdout] test slot::slot::to_some_unchecked ... ok
[INFO] [stdout] test iterators::iter_mut::tests::next ... ok
[INFO] [stdout] test iterators::iter::tests::size_hint ... ok
[INFO] [stdout] test iterators::into_iter::tests::next_back ... ok
[INFO] [stdout] test iterators::into_iter::tests::next ... ok
[INFO] [stdout] test freelist::from_iter ... ok
[INFO] [stdout] test freelist::default ... ok
[INFO] [stdout] test freelist::iter ... ok
[INFO] [stdout] test freelist::iter_mut ... ok
[INFO] [stdout] test freelist::index_panic - should panic ... ok
[INFO] [stdout] test freelist::index_mut_panic - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 46 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fffl
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test src/../doc/freelist.md - Freelist (line 36) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::iter (line 470) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::get_unchecked_mut (line 449) ... ok
[INFO] [stdout] test src/../doc/freelist.md - Freelist (line 6) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::get_unchecked (line 424) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::filled (line 219) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::free (line 255) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::to_vec (line 296) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::size (line 237) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::with_capacity (line 50) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::remove (line 156) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::push (line 87) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::remove_unchecked (line 196) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::new (line 29) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::iter_mut (line 489) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::reserve (line 319) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::capacity (line 273) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::next_available (line 127) ... ok
[INFO] [stdout] test src/lib.rs - Freelist<T>::push (line 77) ... ok
[INFO] [stdout] test src/../doc/freelist.md - Freelist (line 44) - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7a8cf9f44924645889e3bf03a5d3e05fbbfa822fd10f6345f27d7f7ec2a55a96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a8cf9f44924645889e3bf03a5d3e05fbbfa822fd10f6345f27d7f7ec2a55a96", kill_on_drop: false }`
[INFO] [stdout] 7a8cf9f44924645889e3bf03a5d3e05fbbfa822fd10f6345f27d7f7ec2a55a96