[INFO] fetching crate strs_tools_meta 0.18.0...
[INFO] testing strs_tools_meta-0.18.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate strs_tools_meta 0.18.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate strs_tools_meta 0.18.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate strs_tools_meta 0.18.0
[INFO] tweaked toml for crates.io crate strs_tools_meta 0.18.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate strs_tools_meta 0.18.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate strs_tools_meta 0.18.0 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-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8194a155c395d86a80e615fd35b98ed85f72e2cf8aea4a8ae31c37fcb14f4ca
[INFO] running `Command { std: "docker" "start" "-a" "c8194a155c395d86a80e615fd35b98ed85f72e2cf8aea4a8ae31c37fcb14f4ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8194a155c395d86a80e615fd35b98ed85f72e2cf8aea4a8ae31c37fcb14f4ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8194a155c395d86a80e615fd35b98ed85f72e2cf8aea4a8ae31c37fcb14f4ca", kill_on_drop: false }`
[INFO] [stdout] c8194a155c395d86a80e615fd35b98ed85f72e2cf8aea4a8ae31c37fcb14f4ca
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b8785bb81614d0757e530ffa2b846a3d1a70c28f1b0db8b6b6fca98a07d4f1d
[INFO] running `Command { std: "docker" "start" "-a" "4b8785bb81614d0757e530ffa2b846a3d1a70c28f1b0db8b6b6fca98a07d4f1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling clone_dyn_types v0.47.0
[INFO] [stderr]    Compiling collection_tools v0.38.0
[INFO] [stderr]    Compiling interval_adapter v0.42.0
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling component_model_types v0.26.0
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]    Compiling iter_tools v0.49.0
[INFO] [stderr]    Compiling const_format v0.2.35
[INFO] [stderr]    Compiling macro_tools v0.84.0
[INFO] [stderr]    Compiling strs_tools_meta v0.18.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.38s
[INFO] running `Command { std: "docker" "inspect" "4b8785bb81614d0757e530ffa2b846a3d1a70c28f1b0db8b6b6fca98a07d4f1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b8785bb81614d0757e530ffa2b846a3d1a70c28f1b0db8b6b6fca98a07d4f1d", kill_on_drop: false }`
[INFO] [stdout] 4b8785bb81614d0757e530ffa2b846a3d1a70c28f1b0db8b6b6fca98a07d4f1d
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e46c9e9ef8529c3278b2e63f22fb6e9b5a722f4a61f2d036f0358482307a774d
[INFO] running `Command { std: "docker" "start" "-a" "e46c9e9ef8529c3278b2e63f22fb6e9b5a722f4a61f2d036f0358482307a774d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling clone_dyn_types v0.47.0
[INFO] [stderr]    Compiling collection_tools v0.38.0
[INFO] [stderr]    Compiling interval_adapter v0.42.0
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling component_model_types v0.26.0
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]    Compiling const_format v0.2.35
[INFO] [stderr]    Compiling iter_tools v0.49.0
[INFO] [stderr]    Compiling macro_tools v0.84.0
[INFO] [stderr]    Compiling strs_tools_meta v0.18.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.18s
[INFO] running `Command { std: "docker" "inspect" "e46c9e9ef8529c3278b2e63f22fb6e9b5a722f4a61f2d036f0358482307a774d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e46c9e9ef8529c3278b2e63f22fb6e9b5a722f4a61f2d036f0358482307a774d", kill_on_drop: false }`
[INFO] [stdout] e46c9e9ef8529c3278b2e63f22fb6e9b5a722f4a61f2d036f0358482307a774d
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b47bfd60610e0d4a0ad26132c2b476d530888d694cfaa3da1eaca4dae53655db
[INFO] running `Command { std: "docker" "start" "-a" "b47bfd60610e0d4a0ad26132c2b476d530888d694cfaa3da1eaca4dae53655db", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/strs_tools_meta-e28480c95826c1f4)
[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]      Running tests/corner_cases_test.rs (/opt/rustwide/target/debug/deps/corner_cases_test-e7e1de27d90e447f)
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test corner_consecutive_delimiters ... ok
[INFO] [stdout] test corner_delimiter_at_start ... ok
[INFO] [stdout] test corner_consecutive_delimiters_preserve_empty ... ok
[INFO] [stdout] test corner_empty_string_preserve_empty_false ... ok
[INFO] [stdout] test corner_many_delimiters_over_threshold ... ok
[INFO] [stdout] test corner_many_delimiters_threshold ... ok
[INFO] [stdout] test corner_delimiter_at_end ... ok
[INFO] [stdout] test corner_empty_string ... ok
[INFO] [stdout] test corner_match_at_start ... ok
[INFO] [stdout] test corner_match_empty_pattern ... ok
[INFO] [stdout] test corner_match_in_middle ... ok
[INFO] [stdout] test corner_match_longest_match_strategy ... ok
[INFO] [stdout] test corner_match_at_end ... ok
[INFO] [stdout] test corner_match_empty_input ... ok
[INFO] [stdout] test corner_match_many_patterns_over_threshold ... ok
[INFO] [stdout] test corner_match_multiple_occurrences ... ok
[INFO] [stdout] test corner_match_overlapping_patterns ... ok
[INFO] [stdout] test corner_no_delimiters ... ok
[INFO] [stdout] test corner_only_delimiters ... ok
[INFO] [stdout] test corner_only_delimiters_preserve_empty ... ok
[INFO] [stdout] test corner_overlapping_delimiters ... ok
[INFO] [stdout] test corner_whitespace_delimiters ... ok
[INFO] [stdout] test corner_unicode_input ... ok
[INFO] [stdout] test corner_match_many_patterns_threshold ... ok
[INFO] [stdout] test corner_match_unicode ... ok
[INFO] [stdout] test corner_match_multibyte_utf8_emoji ... ok
[INFO] [stdout] test corner_match_no_match ... ok
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-893af0800b7ccde2)
[INFO] [stdout] test corner_multibyte_utf8_emoji ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test optimize_match_tests::tc10_empty_input ... ok
[INFO] [stdout] test optimize_match_tests::tc2_multiple_small_patterns ... ok
[INFO] [stdout] test optimize_match_tests::tc1_single_pattern ... ok
[INFO] [stdout] test optimize_match_tests::tc3_first_match_strategy ... ok
[INFO] [stdout] test optimize_match_tests::tc5_all_matches_strategy ... ok
[INFO] [stdout] test optimize_match_tests::tc4_longest_match_strategy ... ok
[INFO] [stdout] test optimize_match_tests::tc6_debug_mode ... ok
[INFO] [stdout] test optimize_match_tests::tc7_explicit_parameters ... ok
[INFO] [stdout] test optimize_match_tests::tc8_default_value_equivalence ... ok
[INFO] [stdout] test optimize_match_tests::tc9_no_match ... ok
[INFO] [stdout] test optimize_split_tests::tc1_single_char_delimiter ... ok
[INFO] [stdout] test optimize_split_tests::tc2_multi_char_single_delimiter ... ok
[INFO] [stdout] test optimize_split_tests::tc10_default_value_equivalence ... ok
[INFO] [stdout] test optimize_split_tests::tc3_multiple_delimiters ... ok
[INFO] [stdout] test optimize_split_tests::tc4_complex_delimiters ... ok
[INFO] [stdout] test optimize_split_tests::tc5_preserve_delimiters ... ok
[INFO] [stdout] test optimize_split_tests::tc6_preserve_empty ... ok
[INFO] [stdout] test optimize_split_tests::tc7_multiple_delimiters_simple ... ok
[INFO] [stdout] test optimize_split_tests::tc8_debug_mode ... ok
[INFO] [stdout] test optimize_split_tests::tc9_explicit_parameters ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/optimize_match_tests.rs (/opt/rustwide/target/debug/deps/optimize_match_tests-b50dfbcec03f477a)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tc10_empty_input ... ok
[INFO] [stdout] test tc2_multiple_small_patterns ... ok
[INFO] [stdout] test tc1_single_pattern ... ok
[INFO] [stdout] test tc4_longest_match_strategy ... ok
[INFO] [stdout] test tc3_first_match_strategy ... ok
[INFO] [stdout] test tc5_all_matches_strategy ... ok
[INFO] [stdout] test tc7_explicit_parameters ... ok
[INFO] [stdout] test tc8_default_value_equivalence ... ok
[INFO] [stdout] test tc9_no_match ... ok
[INFO] [stdout] test tc6_debug_mode ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/optimize_split_tests.rs (/opt/rustwide/target/debug/deps/optimize_split_tests-4e79cb1edaad4b09)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tc10_default_value_equivalence ... ok
[INFO] [stdout] test tc1_single_char_delimiter ... ok
[INFO] [stdout] test tc2_multi_char_single_delimiter ... ok
[INFO] [stdout] test tc4_complex_delimiters ... ok
[INFO] [stdout] test tc6_preserve_empty ... ok
[INFO] [stdout] test tc5_preserve_delimiters ... ok
[INFO] [stdout] test tc8_debug_mode ... ok
[INFO] [stdout] test tc3_multiple_delimiters ... ok
[INFO] [stdout] test tc9_explicit_parameters ... ok
[INFO] [stdout] test tc7_multiple_delimiters_simple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests strs_tools_meta
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - optimize_match (line 88) ... ok
[INFO] [stdout] test src/lib.rs - optimize_match (line 80) ... ok
[INFO] [stdout] test src/lib.rs - optimize_split (line 31) ... ok
[INFO] [stdout] test src/lib.rs - optimize_split (line 38) ... ok
[INFO] [stdout] test src/lib.rs - optimize_split (line 46) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b47bfd60610e0d4a0ad26132c2b476d530888d694cfaa3da1eaca4dae53655db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b47bfd60610e0d4a0ad26132c2b476d530888d694cfaa3da1eaca4dae53655db", kill_on_drop: false }`
[INFO] [stdout] b47bfd60610e0d4a0ad26132c2b476d530888d694cfaa3da1eaca4dae53655db
