[INFO] cloning repository https://github.com/baiango/BytePiece
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/baiango/BytePiece" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaiango%2FBytePiece", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaiango%2FBytePiece'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 392d5db35296e7b8f0ad2ef92cee6887ee4aa8da
[INFO] testing baiango/BytePiece against beta-2025-09-21 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaiango%2FBytePiece" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/baiango/BytePiece
[INFO] finished tweaking git repo https://github.com/baiango/BytePiece
[INFO] tweaked toml for git repo https://github.com/baiango/BytePiece written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/baiango/BytePiece 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 git repo https://github.com/baiango/BytePiece 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] [stderr]     Blocking waiting for file lock on package cache
[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] f1b90db47222ef1d558acc3d0ad1ad4093f0455ffcc4130b596a7a3a7f6bc291
[INFO] running `Command { std: "docker" "start" "-a" "f1b90db47222ef1d558acc3d0ad1ad4093f0455ffcc4130b596a7a3a7f6bc291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1b90db47222ef1d558acc3d0ad1ad4093f0455ffcc4130b596a7a3a7f6bc291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1b90db47222ef1d558acc3d0ad1ad4093f0455ffcc4130b596a7a3a7f6bc291", kill_on_drop: false }`
[INFO] [stdout] f1b90db47222ef1d558acc3d0ad1ad4093f0455ffcc4130b596a7a3a7f6bc291
[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] 1714d8fba1e2bdb7f76d0d7138c6ffbcbf31ec12e3c07e6955bff94ec21ff228
[INFO] running `Command { std: "docker" "start" "-a" "1714d8fba1e2bdb7f76d0d7138c6ffbcbf31ec12e3c07e6955bff94ec21ff228", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling tokenizer_trainer_bin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |       let partial_arg_msg = (
[INFO] [stdout]    |  ___________________________^
[INFO] [stdout] 51 | |         // Try not to go over 80 characters!
[INFO] [stdout] 52 | |         format!("Usage: {} [parameter_1,parameter_2..] file\n", args[0])
[INFO] [stdout]    | |_____^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |           + "  tcb=      Training chunk bytes. Around 0(n ** 2 * 256) memory.\n"
[INFO] [stdout]    |  _______________________________________________________________________________^
[INFO] [stdout] 69 | |     );
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 50 ~     let partial_arg_msg = format!("Usage: {} [parameter_1,parameter_2..] file\n", args[0])
[INFO] [stdout] 51 |         + "E.g.: tokenizer_trainer_bin v=0b0_1111,br=0x3fff,mt=0 pexels-pixabay-302743.jpg\n"
[INFO] [stdout] ...
[INFO] [stdout] 65 |         + "            None to use single.\n"
[INFO] [stdout] 66 ~         + "  tcb=      Training chunk bytes. Around 0(n ** 2 * 256) memory.\n";
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/tok_codec.rs:48:19
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn encode(&self, bytes: &[u8]) {
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEMO_STRING` is never used
[INFO] [stdout]  --> src/tok_codec.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const DEMO_STRING: &[u8] = b"The quick brown fox jumps over the lazy dog.";
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TokCodec` is never constructed
[INFO] [stdout]   --> src/tok_codec.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct TokCodec {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `from_longest_bytes_iter`, `encode`, and `decode` are never used
[INFO] [stdout]   --> src/tok_codec.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl TokCodec {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 16 |     fn new(file_path: &str) -> TokCodec {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn from_longest_bytes_iter(&self) -> impl Iterator<Item = (Vec<u8>, i32)> + '_ {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn encode(&self, bytes: &[u8]) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     fn decode(&self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `demo` is never used
[INFO] [stdout]   --> src/tok_codec.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn demo() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.65s
[INFO] running `Command { std: "docker" "inspect" "1714d8fba1e2bdb7f76d0d7138c6ffbcbf31ec12e3c07e6955bff94ec21ff228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1714d8fba1e2bdb7f76d0d7138c6ffbcbf31ec12e3c07e6955bff94ec21ff228", kill_on_drop: false }`
[INFO] [stdout] 1714d8fba1e2bdb7f76d0d7138c6ffbcbf31ec12e3c07e6955bff94ec21ff228
[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] 022f10991ac3f5ac6f04e4b493d8812b77e7455f0197d4af7bda132beeb3bde2
[INFO] running `Command { std: "docker" "start" "-a" "022f10991ac3f5ac6f04e4b493d8812b77e7455f0197d4af7bda132beeb3bde2", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokenizer_trainer_bin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |       let partial_arg_msg = (
[INFO] [stdout]    |  ___________________________^
[INFO] [stdout] 51 | |         // Try not to go over 80 characters!
[INFO] [stdout] 52 | |         format!("Usage: {} [parameter_1,parameter_2..] file\n", args[0])
[INFO] [stdout]    | |_____^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |           + "  tcb=      Training chunk bytes. Around 0(n ** 2 * 256) memory.\n"
[INFO] [stdout]    |  _______________________________________________________________________________^
[INFO] [stdout] 69 | |     );
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 50 ~     let partial_arg_msg = format!("Usage: {} [parameter_1,parameter_2..] file\n", args[0])
[INFO] [stdout] 51 |         + "E.g.: tokenizer_trainer_bin v=0b0_1111,br=0x3fff,mt=0 pexels-pixabay-302743.jpg\n"
[INFO] [stdout] ...
[INFO] [stdout] 65 |         + "            None to use single.\n"
[INFO] [stdout] 66 ~         + "  tcb=      Training chunk bytes. Around 0(n ** 2 * 256) memory.\n";
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/tok_codec.rs:48:19
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn encode(&self, bytes: &[u8]) {
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEMO_STRING` is never used
[INFO] [stdout]  --> src/tok_codec.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const DEMO_STRING: &[u8] = b"The quick brown fox jumps over the lazy dog.";
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TokCodec` is never constructed
[INFO] [stdout]   --> src/tok_codec.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct TokCodec {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `from_longest_bytes_iter`, `encode`, and `decode` are never used
[INFO] [stdout]   --> src/tok_codec.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl TokCodec {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 16 |     fn new(file_path: &str) -> TokCodec {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn from_longest_bytes_iter(&self) -> impl Iterator<Item = (Vec<u8>, i32)> + '_ {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn encode(&self, bytes: &[u8]) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     fn decode(&self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `demo` is never used
[INFO] [stdout]   --> src/tok_codec.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn demo() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "022f10991ac3f5ac6f04e4b493d8812b77e7455f0197d4af7bda132beeb3bde2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "022f10991ac3f5ac6f04e4b493d8812b77e7455f0197d4af7bda132beeb3bde2", kill_on_drop: false }`
[INFO] [stdout] 022f10991ac3f5ac6f04e4b493d8812b77e7455f0197d4af7bda132beeb3bde2
[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] 77878f739fb3204d7d75df0fd25c64a0291b740d66481267c761fa7ade095da1
[INFO] running `Command { std: "docker" "start" "-a" "77878f739fb3204d7d75df0fd25c64a0291b740d66481267c761fa7ade095da1", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/main.rs:50:24
[INFO] [stderr]    |
[INFO] [stderr] 50 |       let partial_arg_msg = (
[INFO] [stderr]    |  ___________________________^
[INFO] [stderr] 51 | |         // Try not to go over 80 characters!
[INFO] [stderr] 52 | |         format!("Usage: {} [parameter_1,parameter_2..] file\n", args[0])
[INFO] [stderr]    | |_____^^^^
[INFO] [stderr] ...
[INFO] [stderr] 68 |           + "  tcb=      Training chunk bytes. Around 0(n ** 2 * 256) memory.\n"
[INFO] [stderr]    |  _______________________________________________________________________________^
[INFO] [stderr] 69 | |     );
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 50 ~     let partial_arg_msg = format!("Usage: {} [parameter_1,parameter_2..] file\n", args[0])
[INFO] [stderr] 51 |         + "E.g.: tokenizer_trainer_bin v=0b0_1111,br=0x3fff,mt=0 pexels-pixabay-302743.jpg\n"
[INFO] [stderr] ...
[INFO] [stderr] 65 |         + "            None to use single.\n"
[INFO] [stderr] 66 ~         + "  tcb=      Training chunk bytes. Around 0(n ** 2 * 256) memory.\n";
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes`
[INFO] [stderr]   --> src/tok_codec.rs:48:19
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn encode(&self, bytes: &[u8]) {
[INFO] [stderr]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `DEMO_STRING` is never used
[INFO] [stderr]  --> src/tok_codec.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 | const DEMO_STRING: &[u8] = b"The quick brown fox jumps over the lazy dog.";
[INFO] [stderr]   |       ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TokCodec` is never constructed
[INFO] [stderr]   --> src/tok_codec.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct TokCodec {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `from_longest_bytes_iter`, `encode`, and `decode` are never used
[INFO] [stderr]   --> src/tok_codec.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | impl TokCodec {
[INFO] [stderr]    | ------------- associated items in this implementation
[INFO] [stderr] 16 |     fn new(file_path: &str) -> TokCodec {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 42 |     fn from_longest_bytes_iter(&self) -> impl Iterator<Item = (Vec<u8>, i32)> + '_ {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 48 |     fn encode(&self, bytes: &[u8]) {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 56 |     fn decode(&self) {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `demo` is never used
[INFO] [stderr]   --> src/tok_codec.rs:62:8
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub fn demo() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `tokenizer_trainer_bin` (bin "tokenizer_trainer_bin" test) generated 6 warnings (run `cargo fix --bin "tokenizer_trainer_bin" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tokenizer_trainer_bin-30df052890dd6980)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tok_trainer::tests::test_generate_cutoff_by_pattern ... ok
[INFO] [stdout] test tok_trainer::tests::test_all_substring ... ok
[INFO] [stdout] test tok_trainer::tests::test_train_unigram_bytes ... ok
[INFO] [stdout] test tok_trainer::tests::test_rebuild_2d_byte_vec ... ok
[INFO] [stdout] test tok_trainer::tests::test_numerical_grade_encodable ... ok
[INFO] [stdout] test tok_trainer::tests::test_train_tokenizer ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tok_trainer::tests::test_train_tokenizer stdout ----
[INFO] [stdout] Debug: Will use 2 thread(s)
[INFO] [stdout] Debug: Chunk length: 2 * 1
[INFO] [stdout] Debug: Will use 2 thread(s)
[INFO] [stdout] Debug: Chunk length: 8 * 1
[INFO] [stdout] Debug: Will use 4 thread(s)
[INFO] [stdout] Debug: Chunk length: 16 * 136533
[INFO] [stdout] 
[INFO] [stdout] thread 'tok_trainer::tests::test_train_tokenizer' (21) panicked at src/tok_trainer.rs:413:57:
[INFO] [stdout] create failed: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x626a74ebad02 - std::backtrace_rs::backtrace::libunwind::trace::hcab59e1e990fdc24
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x626a74ebad02 - std::backtrace_rs::backtrace::trace_unsynchronized::he24cc57f3d2f47b7
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x626a74ebad02 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x626a74ebad02 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h67edf0e4d33c343c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x626a74ecb0df - core::fmt::rt::Argument::fmt::hef94184842aeafdd
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x626a74ecb0df - core::fmt::write::hcf0c66b48a8fa606
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x626a74e87e21 - std::io::default_write_fmt::h69967ac0ba93195f
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x626a74e87e21 - std::io::Write::write_fmt::h8db9396209deaa1c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x626a74e93f62 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x626a74e98c8f - std::panicking::default_hook::{{closure}}::h91001850288db5f7
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x626a74e98b21 - std::panicking::default_hook::h2346dbb704ef5512
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x626a74e30a6e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h18383b2e29377420
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   12:     0x626a74e30a6e - test::test_main_with_exit_callback::{{closure}}::h272d7ef99aef06dc
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x626a74e993ff - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6dba6e441651a0d1
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   14:     0x626a74e993ff - std::panicking::panic_with_hook::hd2b063a6090d23a4
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x626a74e991aa - std::panicking::panic_handler::{{closure}}::he666d95f139a333e
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x626a74e94099 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x626a74e7c2ed - __rustc[1d67440d6e82e4f]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x626a74ed2f90 - core::panicking::panic_fmt::h420ddb7fd73daf53
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x626a74ed2576 - core::result::unwrap_failed::hdde076be853d034f
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/result.rs:1855:5
[INFO] [stdout]   20:     0x626a74de31ce - core::result::Result<T,E>::expect::h15a913d762c1c005
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/result.rs:1178:23
[INFO] [stdout]   21:     0x626a74dec10e - tokenizer_trainer_bin::tok_trainer::tests::test_train_tokenizer::h868c55e712b9f186
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tok_trainer.rs:413:51
[INFO] [stdout]   22:     0x626a74dec3e7 - tokenizer_trainer_bin::tok_trainer::tests::test_train_tokenizer::{{closure}}::h60c32a0c8107b4cb
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tok_trainer.rs:376:27
[INFO] [stdout]   23:     0x626a74ddd096 - core::ops::function::FnOnce::call_once::hab56f85b6f16f1c6
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x626a74e3082b - core::ops::function::FnOnce::call_once::h70887edf07a630ba
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x626a74e3082b - test::__rust_begin_short_backtrace::h27763c4cbbdb8601
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x626a74e46495 - test::run_test_in_process::{{closure}}::h4dc8bc6d5e3924d3
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x626a74e46495 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h75905e8ffe81974f
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x626a74e46495 - std::panicking::catch_unwind::do_call::h0bc60366ba66eba5
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x626a74e46495 - std::panicking::catch_unwind::hae1ec7bf94407afa
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x626a74e46495 - std::panic::catch_unwind::h0f4ff4773d84d3cd
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x626a74e46495 - test::run_test_in_process::h03fbc77ae48b3f10
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x626a74e46495 - test::run_test::{{closure}}::h83476a9c453dc4d3
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x626a74e1cc84 - test::run_test::{{closure}}::h515482ad1e7fe7de
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x626a74e1cc84 - std::sys::backtrace::__rust_begin_short_backtrace::hed09f6ac5fe9d647
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x626a74e2054a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h988e2cd969319888
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x626a74e2054a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd70e28dc46ec20be
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x626a74e2054a - std::panicking::catch_unwind::do_call::hdc29e11311eb7655
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x626a74e2054a - std::panicking::catch_unwind::h9e402d6a96fef41c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x626a74e2054a - std::panic::catch_unwind::h9213c0c54aec70e0
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x626a74e2054a - std::thread::Builder::spawn_unchecked_::{{closure}}::h6262965869ed2b87
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x626a74e2054a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h05c05ed02619e462
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x626a74e8f1ff - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h2044e71c41d3958a
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   43:     0x626a74e8f1ff - std::sys::thread::unix::Thread::new::thread_start::hf277835320aa8e5a
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/thread/unix.rs:126:17
[INFO] [stdout]   44:     0x77c5f0d55aa4 - <unknown>
[INFO] [stdout]   45:     0x77c5f0de2a34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tok_trainer::tests::test_train_tokenizer
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 30.55s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin tokenizer_trainer_bin`
[INFO] running `Command { std: "docker" "inspect" "77878f739fb3204d7d75df0fd25c64a0291b740d66481267c761fa7ade095da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77878f739fb3204d7d75df0fd25c64a0291b740d66481267c761fa7ade095da1", kill_on_drop: false }`
[INFO] [stdout] 77878f739fb3204d7d75df0fd25c64a0291b740d66481267c761fa7ade095da1
