[INFO] fetching crate bbpe 0.6.3...
[INFO] testing bbpe-0.6.3 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate bbpe 0.6.3 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate bbpe 0.6.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate bbpe 0.6.3
[INFO] tweaked toml for crates.io crate bbpe 0.6.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate bbpe 0.6.3 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate bbpe 0.6.3 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-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b18312231b0c74e1d467a944b4b04efc6fc30578df14779e609a42f337e94660
[INFO] running `Command { std: "docker" "start" "-a" "b18312231b0c74e1d467a944b4b04efc6fc30578df14779e609a42f337e94660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b18312231b0c74e1d467a944b4b04efc6fc30578df14779e609a42f337e94660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b18312231b0c74e1d467a944b4b04efc6fc30578df14779e609a42f337e94660", kill_on_drop: false }`
[INFO] [stdout] b18312231b0c74e1d467a944b4b04efc6fc30578df14779e609a42f337e94660
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f0fb0ab8e3d3e92542795e55621ace6d83a4e620cd8817cb387989ba10c2e48
[INFO] running `Command { std: "docker" "start" "-a" "9f0fb0ab8e3d3e92542795e55621ace6d83a4e620cd8817cb387989ba10c2e48", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.20
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling cc v1.2.41
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling portable-atomic v1.11.1
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling syn v2.0.107
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling onig_sys v69.9.1
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling anstyle-query v1.1.4
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling esaxx-rs v0.1.10
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling castaway v0.2.4
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling blake3 v1.8.2
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling macro_rules_attribute-proc_macro v0.2.2
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling clap_lex v0.7.6
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling clap_builder v4.5.50
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling indicatif v0.17.11
[INFO] [stderr]    Compiling unicode-normalization-alignments v0.1.12
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling monostate-impl v0.1.18
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling monostate v0.1.18
[INFO] [stderr]    Compiling clap_derive v4.5.49
[INFO] [stderr]    Compiling rayon-cond v0.4.0
[INFO] [stderr]    Compiling onig v6.5.1
[INFO] [stderr]    Compiling macro_rules_attribute v0.2.2
[INFO] [stderr]    Compiling env_filter v0.1.4
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling derive_builder_core v0.20.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling console v0.16.1
[INFO] [stderr]    Compiling constant_time_eq v0.3.1
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling unit-prefix v0.5.1
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling jiff v0.2.15
[INFO] [stderr]    Compiling arrayref v0.3.9
[INFO] [stderr]    Compiling derive_builder_macro v0.20.2
[INFO] [stderr]    Compiling clap v4.5.50
[INFO] [stderr]    Compiling indicatif v0.18.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling derive_builder v0.20.2
[INFO] [stderr]    Compiling flate2 v1.1.5
[INFO] [stderr]    Compiling bstr v1.12.0
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling compact_str v0.9.0
[INFO] [stderr]    Compiling dary_heap v0.3.8
[INFO] [stderr]    Compiling spm_precompiled v0.1.4
[INFO] [stderr]    Compiling tokenizers v0.22.1
[INFO] [stderr]    Compiling env_logger v0.11.8
[INFO] [stderr]    Compiling bbpe v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 45s
[INFO] running `Command { std: "docker" "inspect" "9f0fb0ab8e3d3e92542795e55621ace6d83a4e620cd8817cb387989ba10c2e48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f0fb0ab8e3d3e92542795e55621ace6d83a4e620cd8817cb387989ba10c2e48", kill_on_drop: false }`
[INFO] [stdout] 9f0fb0ab8e3d3e92542795e55621ace6d83a4e620cd8817cb387989ba10c2e48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7dfe258a1e07f980f75d9a5783b639ed8ec8e5ff424ddfd18a0eee80f86764d
[INFO] running `Command { std: "docker" "start" "-a" "e7dfe258a1e07f980f75d9a5783b639ed8ec8e5ff424ddfd18a0eee80f86764d", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling onig v6.5.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling predicates-core v1.0.9
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling assert_cmd v2.0.17
[INFO] [stderr]    Compiling termtree v0.5.1
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling predicates-tree v1.0.12
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling predicates v3.1.3
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling insta v1.43.2
[INFO] [stderr]    Compiling criterion-plot v0.6.0
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling criterion v0.7.0
[INFO] [stderr]    Compiling tokenizers v0.22.1
[INFO] [stderr]    Compiling bbpe v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 59.83s
[INFO] running `Command { std: "docker" "inspect" "e7dfe258a1e07f980f75d9a5783b639ed8ec8e5ff424ddfd18a0eee80f86764d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7dfe258a1e07f980f75d9a5783b639ed8ec8e5ff424ddfd18a0eee80f86764d", kill_on_drop: false }`
[INFO] [stdout] e7dfe258a1e07f980f75d9a5783b639ed8ec8e5ff424ddfd18a0eee80f86764d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 323eac1f248cff009d02774f38c15b7819131cec494eda4a075a8ed99112c975
[INFO] running `Command { std: "docker" "start" "-a" "323eac1f248cff009d02774f38c15b7819131cec494eda4a075a8ed99112c975", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/bbpe-2b26d1d4e2f9af91)
[INFO] [stdout] 
[INFO] [stdout] running 40 tests
[INFO] [stdout] test bytes::tests::allowed_length_checks_subset ... ok
[INFO] [stdout] test bytes::tests::ascii_whitespace_helpers ... ok
[INFO] [stdout] test config::tests::ascii_preprocessor_shrinks_default_allowed_lengths ... ok
[INFO] [stdout] test config::tests::ingest_builder_overrides_defaults ... ok
[INFO] [stdout] test bytes::tests::latin1_transcoding_round_trip ... ok
[INFO] [stdout] test config::tests::custom_allowed_lengths_are_preserved ... ok
[INFO] [stdout] test config::tests::builder_deduplicates_allowed_lengths ... ok
[INFO] [stdout] test bytes::tests::legacy_round_trip ... ok
[INFO] [stdout] test config::tests::validate_rejects_missing_base_length ... ok
[INFO] [stdout] test model::tests::derive_with_vocab_preserves_special_tokens ... ok
[INFO] [stdout] test model::tests::binary_tokenizer_round_trips_ascii ... ok
[INFO] [stdout] test corpus::tests::load_binary_corpus_entire_file_when_chunk_zero ... ok
[INFO] [stdout] test corpus::tests::collect_paths_discovers_files_recursively ... ok
[INFO] [stdout] test corpus::tests::stream_jsonl_corpus_matches_loader ... ok
[INFO] [stdout] test corpus::tests::load_binary_corpus_splits_chunks ... ok
[INFO] [stdout] test corpus::tests::stream_binary_corpus_matches_loaded_sequences ... ok
[INFO] [stdout] test preprocess::tests::ascii_whitespace_splits_and_preserves_runs ... ok
[INFO] [stdout] test preprocess::tests::null_delimited_splits_binary_streams ... ok
[INFO] [stdout] test preprocess::tests::preprocessor_runner_passthrough_when_disabled ... ok
[INFO] [stdout] test preprocess::tests::probability_zero_returns_borrowed_sequences ... ok
[INFO] [stdout] test preprocess::tests::unicode_whitespace_combines_multi_byte_runs ... ok
[INFO] [stdout] test preprocess::tests::unicode_whitespace_merges_do_not_emit_trailing_separators ... ok
[INFO] [stdout] test trainer::tests::leading_whitespace_merges_are_forbidden ... ok
[INFO] [stdout] test preprocess::tests::ascii_whitespace_merges_create_internal_spacing ... ok
[INFO] [stdout] test preprocess::tests::ascii_whitespace_probabilistic_merges_keep_suffixes_clean ... ok
[INFO] [stdout] test trainer::tests::merges_do_not_leave_trailing_whitespace_tokens ... ok
[INFO] [stdout] test model::tests::huggingface_json_is_well_formed ... ok
[INFO] [stdout] test preprocess::tests::apply_preprocessor_falls_back_to_borrowed ... ok
[INFO] [stdout] test model::tests::derive_with_vocab_trims_merges_and_tokens ... ok
[INFO] [stdout] test trainer::tests::trainer_produces_merges ... ok
[INFO] [stdout] test trainer::tests::whitespace_merges_require_letters_enforced ... ok
[INFO] [stdout] test trainer::tests::trainer_streams_data_incrementally ... ok
[INFO] [stdout] test trainer::word::tests::enumerate_pairs_honors_allowed_lengths ... ok
[INFO] [stdout] test trainer::tests::tokenizer_round_trip ... ok
[INFO] [stdout] test trainer::word::tests::merge_respects_allowed_lengths ... ok
[INFO] [stdout] test trainer::tests::trainer_avoids_duplicate_special_token_bytes ... ok
[INFO] [stdout] test trainer::tests::trainer_pads_vocab_with_whitespace_tokens ... ok
[INFO] [stdout] test trainer::word::tests::merge_replaces_all_pairs ... ok
[INFO] [stdout] test preprocess::tests::probabilistic_preprocessor_is_seeded ... ok
[INFO] [stdout] test trainer::tests::tokenizer_saves_huggingface_json ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 40 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/bbpe.rs (/opt/rustwide/target/debug/deps/bbpe-16c8b8a75ea900d4)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/cli.rs (/opt/rustwide/target/debug/deps/cli-e3e52a09cf033522)
[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] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test probabilistic_preprocessor_disables_pre_tokenizer ... ok
[INFO] [stdout] test special_tokens_are_assigned_lowest_ids ... ok
[INFO] [stdout] test train_from_gzipped_jsonl_field ... ok
[INFO] [stdout] test train_entropy_filter_rejects_all ... ok
[INFO] [stdout] test train_with_both_entropy_filters ... ok
[INFO] [stdout] test chunk_train_emits_combined_tokenizer_and_report ... ok
[INFO] [stdout] test train_entropy_filter_invalid_range ... ok
[INFO] [stdout] test train_with_min_entropy_filter ... ok
[INFO] [stdout] test train_supports_preprocessor_and_family_outputs ... ok
[INFO] [stdout] test train_with_max_entropy_filter ... ok
[INFO] [stdout] test train_from_jsonl_field ... ok
[INFO] [stdout] test python_round_trip_preprocessors ... FAILED
[INFO] [stdout] test train_encode_decode_round_trip ... ok
[INFO] [stdout] test chunk_train_deduplicates_when_requested ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- python_round_trip_preprocessors stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'python_round_trip_preprocessors' (62) panicked at tests/cli.rs:41:36:
[INFO] [stdout] create uv cache dir: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x61fd9a434f8a - std[b80a194dd3c418bb]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x61fd9a434f8a - std[b80a194dd3c418bb]::backtrace_rs::backtrace::trace_unsynchronized::<std[b80a194dd3c418bb]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x61fd9a434f8a - std[b80a194dd3c418bb]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x61fd9a434f8a - <<std[b80a194dd3c418bb]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[10b6fa85044e1869]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x61fd9a44b6aa - <core[10b6fa85044e1869]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x61fd9a44b6aa - core[10b6fa85044e1869]::fmt::write
[INFO] [stdout]    6:     0x61fd9a43acf2 - std[b80a194dd3c418bb]::io::default_write_fmt::<alloc[dd269455e567d8e9]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x61fd9a43acf2 - <alloc[dd269455e567d8e9]::vec::Vec<u8> as std[b80a194dd3c418bb]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x61fd9a411c6f - <std[b80a194dd3c418bb]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x61fd9a411c6f - std[b80a194dd3c418bb]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x61fd9a42c629 - std[b80a194dd3c418bb]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x61fd9a33d50c - <alloc[dd269455e567d8e9]::boxed::Box<dyn for<'a, 'b> core[10b6fa85044e1869]::ops::function::Fn<(&'a std[b80a194dd3c418bb]::panic::PanicHookInfo<'b>,), Output = ()> + core[10b6fa85044e1869]::marker::Sync + core[10b6fa85044e1869]::marker::Send> as core[10b6fa85044e1869]::ops::function::Fn<(&std[b80a194dd3c418bb]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   12:     0x61fd9a33d50c - test[826cbc6ef54ab466]::test_main_with_exit_callback::<test[826cbc6ef54ab466]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x61fd9a42c7e2 - <alloc[dd269455e567d8e9]::boxed::Box<dyn for<'a, 'b> core[10b6fa85044e1869]::ops::function::Fn<(&'a std[b80a194dd3c418bb]::panic::PanicHookInfo<'b>,), Output = ()> + core[10b6fa85044e1869]::marker::Sync + core[10b6fa85044e1869]::marker::Send> as core[10b6fa85044e1869]::ops::function::Fn<(&std[b80a194dd3c418bb]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   14:     0x61fd9a42c7e2 - std[b80a194dd3c418bb]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x61fd9a411d28 - std[b80a194dd3c418bb]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x61fd9a409499 - std[b80a194dd3c418bb]::sys::backtrace::__rust_end_short_backtrace::<std[b80a194dd3c418bb]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x61fd9a412a3d - __rustc[9698a3e60dd14283]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x61fd9a44bfdc - core[10b6fa85044e1869]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x61fd9a44bd52 - core[10b6fa85044e1869]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x61fd9a327e4c - core::result::Result<T,E>::expect::h7286b1010de1437f
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/result.rs:1185:23
[INFO] [stdout]   21:     0x61fd9a313f0c - cli::python_round_trip::h5f700e955559b24e
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:41:36
[INFO] [stdout]   22:     0x61fd9a31b3c5 - cli::run_preprocessor_python_round_trip::h550f5e3803a68d23
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:577:5
[INFO] [stdout]   23:     0x61fd9a3196d9 - cli::python_round_trip_preprocessors::hb393c7ebab58cca4
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:538:5
[INFO] [stdout]   24:     0x61fd9a319877 - cli::python_round_trip_preprocessors::{{closure}}::haa4b0fb962cbee50
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:536:37
[INFO] [stdout]   25:     0x61fd9a3267f6 - core::ops::function::FnOnce::call_once::h151baeec55c17dc4
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x61fd9a3315eb - <fn() -> core[10b6fa85044e1869]::result::Result<(), alloc[dd269455e567d8e9]::string::String> as core[10b6fa85044e1869]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x61fd9a3315eb - test[826cbc6ef54ab466]::__rust_begin_short_backtrace::<core[10b6fa85044e1869]::result::Result<(), alloc[dd269455e567d8e9]::string::String>, fn() -> core[10b6fa85044e1869]::result::Result<(), alloc[dd269455e567d8e9]::string::String>>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/test/src/lib.rs:663:18
[INFO] [stdout]   28:     0x61fd9a33dfdb - test[826cbc6ef54ab466]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/test/src/lib.rs:686:74
[INFO] [stdout]   29:     0x61fd9a33dfdb - <core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<test[826cbc6ef54ab466]::run_test_in_process::{closure#0}> as core[10b6fa85044e1869]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   30:     0x61fd9a33dfdb - std[b80a194dd3c418bb]::panicking::catch_unwind::do_call::<core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<test[826cbc6ef54ab466]::run_test_in_process::{closure#0}>, core[10b6fa85044e1869]::result::Result<(), alloc[dd269455e567d8e9]::string::String>>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:581:40
[INFO] [stdout]   31:     0x61fd9a33dfdb - std[b80a194dd3c418bb]::panicking::catch_unwind::<core[10b6fa85044e1869]::result::Result<(), alloc[dd269455e567d8e9]::string::String>, core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<test[826cbc6ef54ab466]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:544:19
[INFO] [stdout]   32:     0x61fd9a33dfdb - std[b80a194dd3c418bb]::panic::catch_unwind::<core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<test[826cbc6ef54ab466]::run_test_in_process::{closure#0}>, core[10b6fa85044e1869]::result::Result<(), alloc[dd269455e567d8e9]::string::String>>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panic.rs:359:14
[INFO] [stdout]   33:     0x61fd9a33dfdb - test[826cbc6ef54ab466]::run_test_in_process
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/test/src/lib.rs:686:27
[INFO] [stdout]   34:     0x61fd9a33dfdb - test[826cbc6ef54ab466]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/test/src/lib.rs:607:43
[INFO] [stdout]   35:     0x61fd9a3396f4 - test[826cbc6ef54ab466]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/test/src/lib.rs:637:41
[INFO] [stdout]   36:     0x61fd9a3396f4 - std[b80a194dd3c418bb]::sys::backtrace::__rust_begin_short_backtrace::<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   37:     0x61fd9a340be2 - std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked::<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   38:     0x61fd9a340be2 - <core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[10b6fa85044e1869]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   39:     0x61fd9a340be2 - std[b80a194dd3c418bb]::panicking::catch_unwind::do_call::<core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:581:40
[INFO] [stdout]   40:     0x61fd9a340be2 - std[b80a194dd3c418bb]::panicking::catch_unwind::<(), core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:544:19
[INFO] [stdout]   41:     0x61fd9a340be2 - std[b80a194dd3c418bb]::panic::catch_unwind::<core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panic.rs:359:14
[INFO] [stdout]   42:     0x61fd9a340be2 - std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked::<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   43:     0x61fd9a340be2 - <std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1} as core[10b6fa85044e1869]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   44:     0x61fd9a433fff - <alloc[dd269455e567d8e9]::boxed::Box<dyn core[10b6fa85044e1869]::ops::function::FnOnce<(), Output = ()> + core[10b6fa85044e1869]::marker::Send> as core[10b6fa85044e1869]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/alloc/src/boxed.rs:2240:9
[INFO] [stdout]   45:     0x61fd9a433fff - <std[b80a194dd3c418bb]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   46:     0x7b624bdcbaa4 - <unknown>
[INFO] [stdout]   47:     0x7b624be58a64 - clone
[INFO] [stdout]   48:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     python_round_trip_preprocessors
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 13 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.62s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test cli`
[INFO] running `Command { std: "docker" "inspect" "323eac1f248cff009d02774f38c15b7819131cec494eda4a075a8ed99112c975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "323eac1f248cff009d02774f38c15b7819131cec494eda4a075a8ed99112c975", kill_on_drop: false }`
[INFO] [stdout] 323eac1f248cff009d02774f38c15b7819131cec494eda4a075a8ed99112c975
