[INFO] cloning repository https://github.com/JoyousOne/simple-file-compressor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JoyousOne/simple-file-compressor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoyousOne%2Fsimple-file-compressor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoyousOne%2Fsimple-file-compressor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69bb3b769a6ddb2ee647bf838a5b887493cc6bd9
[INFO] testing JoyousOne/simple-file-compressor against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoyousOne%2Fsimple-file-compressor" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JoyousOne/simple-file-compressor
[INFO] finished tweaking git repo https://github.com/JoyousOne/simple-file-compressor
[INFO] tweaked toml for git repo https://github.com/JoyousOne/simple-file-compressor written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JoyousOne/simple-file-compressor on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JoyousOne/simple-file-compressor 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-2026-01-20" "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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34e3ed4eddb02311ce5b7d7dd86cdac6bfdceef9bf9c1255910511689b1b3c6a
[INFO] running `Command { std: "docker" "start" "-a" "34e3ed4eddb02311ce5b7d7dd86cdac6bfdceef9bf9c1255910511689b1b3c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34e3ed4eddb02311ce5b7d7dd86cdac6bfdceef9bf9c1255910511689b1b3c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34e3ed4eddb02311ce5b7d7dd86cdac6bfdceef9bf9c1255910511689b1b3c6a", kill_on_drop: false }`
[INFO] [stdout] 34e3ed4eddb02311ce5b7d7dd86cdac6bfdceef9bf9c1255910511689b1b3c6a
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c16d6681cab2aa9b6052296c0c3d67c0825bac383cb0e405527e2b0b1664bbe
[INFO] running `Command { std: "docker" "start" "-a" "4c16d6681cab2aa9b6052296c0c3d67c0825bac383cb0e405527e2b0b1664bbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling regex-automata v0.4.9
[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 docopt v1.1.1
[INFO] [stderr]    Compiling simple-file-compressor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/big_num.rs:47:33
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn substract(&mut self, other: &Self) {}
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `print_encoding` and `print_as_tree` are never used
[INFO] [stdout]    --> src/algorithms/huffman_tree.rs:163:12
[INFO] [stdout]     |
[INFO] [stdout] 114 | impl Node {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 163 |     pub fn print_encoding(&self, encoding: Vec<u8>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 |     pub fn print_as_tree(&self, prefix: &str, is_left: bool) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `len`, `print_encoding`, `print_tree`, `save_as_file`, and `load_from_file` are never used
[INFO] [stdout]    --> src/algorithms/huffman_tree.rs:380:12
[INFO] [stdout]     |
[INFO] [stdout] 294 | impl HuffmanTree {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 380 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 510 |     pub fn print_encoding(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 514 |     pub fn print_tree(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 526 |     pub fn save_as_file(&self, file_path: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 542 |     pub fn load_from_file(file_path: &str) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Bit` is never used
[INFO] [stdout]  --> src/big_num.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Bit = u8;
[INFO] [stdout]   |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BigNum` is never constructed
[INFO] [stdout]  --> src/big_num.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct BigNum {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/big_num.rs:19:12
[INFO] [stdout]     |
[INFO] [stdout]  18 | impl BigNum {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  19 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  23 |     pub fn push_bit(&mut self, bit: Bit) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  30 |     pub fn add(&mut self, other: &Self) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  47 |     pub fn substract(&mut self, other: &Self) {}
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]  48 |
[INFO] [stdout]  49 |     pub fn multiply(&mut self, other: &Self) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  85 |     fn align_to_other(&mut self, other: &Self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     fn get_aligned_num(&self, other: &Self) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn print(&self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DecimalNum` is never constructed
[INFO] [stdout]    --> src/big_num.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub struct DecimalNum {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `with_capacity`, `multiply_by_two`, and `add_bit` are never used
[INFO] [stdout]    --> src/big_num.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 160 | impl DecimalNum {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 161 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     pub fn with_capacity(capacity: usize) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |     fn multiply_by_two(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |     fn add_bit(&mut self, bit: Bit) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `push_byte` and `insert_byte` are never used
[INFO] [stdout]   --> src/compressed_buffer.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl CompressedBuffer {
[INFO] [stdout]    | --------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn push_byte(&mut self, byte: u8) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn insert_byte(&mut self, index: usize, byte: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_count` and `reduce_count` are never used
[INFO] [stdout]   --> src/fenwick_tree.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl<T> FenwickTree<T> {
[INFO] [stdout]    | ---------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn add_count(&mut self, index: T)
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91 |     pub fn reduce_count(&mut self, index: T)
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `LZWEncoder` should have a snake case name
[INFO] [stdout]  --> src/algorithms/lzw_encoder.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod LZWEncoder {
[INFO] [stdout]   |         ^^^^^^^^^^ help: convert the identifier to snake case: `lzwencoder`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `RLE` should have a snake case name
[INFO] [stdout]  --> src/algorithms/run_length_encoding.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod RLE {
[INFO] [stdout]   |         ^^^ help: convert the identifier to snake case: `rle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.48s
[INFO] running `Command { std: "docker" "inspect" "4c16d6681cab2aa9b6052296c0c3d67c0825bac383cb0e405527e2b0b1664bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c16d6681cab2aa9b6052296c0c3d67c0825bac383cb0e405527e2b0b1664bbe", kill_on_drop: false }`
[INFO] [stdout] 4c16d6681cab2aa9b6052296c0c3d67c0825bac383cb0e405527e2b0b1664bbe
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64d45712ae4617d62aae548c2fc19155f2c1ba46d08b2628f56613b6cebd0a92
[INFO] running `Command { std: "docker" "start" "-a" "64d45712ae4617d62aae548c2fc19155f2c1ba46d08b2628f56613b6cebd0a92", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-file-compressor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/big_num.rs:47:33
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn substract(&mut self, other: &Self) {}
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `print_encoding` and `print_as_tree` are never used
[INFO] [stdout]    --> src/algorithms/huffman_tree.rs:163:12
[INFO] [stdout]     |
[INFO] [stdout] 114 | impl Node {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 163 |     pub fn print_encoding(&self, encoding: Vec<u8>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 |     pub fn print_as_tree(&self, prefix: &str, is_left: bool) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `print_encoding` and `print_tree` are never used
[INFO] [stdout]    --> src/algorithms/huffman_tree.rs:510:12
[INFO] [stdout]     |
[INFO] [stdout] 294 | impl HuffmanTree {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 510 |     pub fn print_encoding(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 514 |     pub fn print_tree(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `substract` and `print` are never used
[INFO] [stdout]    --> src/big_num.rs:47:12
[INFO] [stdout]     |
[INFO] [stdout]  18 | impl BigNum {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  47 |     pub fn substract(&mut self, other: &Self) {}
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn print(&self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/big_num.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 160 | impl DecimalNum {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] 161 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `push_byte` and `insert_byte` are never used
[INFO] [stdout]   --> src/compressed_buffer.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl CompressedBuffer {
[INFO] [stdout]    | --------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn push_byte(&mut self, byte: u8) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn insert_byte(&mut self, index: usize, byte: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `reduce_count` is never used
[INFO] [stdout]   --> src/fenwick_tree.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl<T> FenwickTree<T> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 91 |     pub fn reduce_count(&mut self, index: T)
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `LZWEncoder` should have a snake case name
[INFO] [stdout]  --> src/algorithms/lzw_encoder.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod LZWEncoder {
[INFO] [stdout]   |         ^^^^^^^^^^ help: convert the identifier to snake case: `lzwencoder`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `RLE` should have a snake case name
[INFO] [stdout]  --> src/algorithms/run_length_encoding.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod RLE {
[INFO] [stdout]   |         ^^^ help: convert the identifier to snake case: `rle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "64d45712ae4617d62aae548c2fc19155f2c1ba46d08b2628f56613b6cebd0a92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64d45712ae4617d62aae548c2fc19155f2c1ba46d08b2628f56613b6cebd0a92", kill_on_drop: false }`
[INFO] [stdout] 64d45712ae4617d62aae548c2fc19155f2c1ba46d08b2628f56613b6cebd0a92
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 086cdc33bff6bb30cbb395812b5a7413b51e6f08efa6cbd15f0ee01787a2a0f9
[INFO] running `Command { std: "docker" "start" "-a" "086cdc33bff6bb30cbb395812b5a7413b51e6f08efa6cbd15f0ee01787a2a0f9", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]   --> src/big_num.rs:47:33
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn substract(&mut self, other: &Self) {}
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `print_encoding` and `print_as_tree` are never used
[INFO] [stderr]    --> src/algorithms/huffman_tree.rs:163:12
[INFO] [stderr]     |
[INFO] [stderr] 114 | impl Node {
[INFO] [stderr]     | --------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 163 |     pub fn print_encoding(&self, encoding: Vec<u8>) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 188 |     pub fn print_as_tree(&self, prefix: &str, is_left: bool) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `print_encoding` and `print_tree` are never used
[INFO] [stderr]    --> src/algorithms/huffman_tree.rs:510:12
[INFO] [stderr]     |
[INFO] [stderr] 294 | impl HuffmanTree {
[INFO] [stderr]     | ---------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 510 |     pub fn print_encoding(&self) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 514 |     pub fn print_tree(&self) {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `substract` and `print` are never used
[INFO] [stderr]    --> src/big_num.rs:47:12
[INFO] [stderr]     |
[INFO] [stderr]  18 | impl BigNum {
[INFO] [stderr]     | ----------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr]  47 |     pub fn substract(&mut self, other: &Self) {}
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 106 |     pub fn print(&self) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/big_num.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 160 | impl DecimalNum {
[INFO] [stderr]     | --------------- associated function in this implementation
[INFO] [stderr] 161 |     pub fn new() -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `push_byte` and `insert_byte` are never used
[INFO] [stderr]   --> src/compressed_buffer.rs:77:12
[INFO] [stderr]    |
[INFO] [stderr] 34 | impl CompressedBuffer {
[INFO] [stderr]    | --------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 77 |     pub fn push_byte(&mut self, byte: u8) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 83 |     pub fn insert_byte(&mut self, index: usize, byte: u8) {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `reduce_count` is never used
[INFO] [stderr]   --> src/fenwick_tree.rs:91:12
[INFO] [stderr]    |
[INFO] [stderr]  9 | impl<T> FenwickTree<T> {
[INFO] [stderr]    | ---------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 91 |     pub fn reduce_count(&mut self, index: T)
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: module `LZWEncoder` should have a snake case name
[INFO] [stderr]  --> src/algorithms/lzw_encoder.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod LZWEncoder {
[INFO] [stderr]   |         ^^^^^^^^^^ help: convert the identifier to snake case: `lzwencoder`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `RLE` should have a snake case name
[INFO] [stderr]  --> src/algorithms/run_length_encoding.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod RLE {
[INFO] [stderr]   |         ^^^ help: convert the identifier to snake case: `rle`
[INFO] [stderr] 
[INFO] [stderr] warning: `simple-file-compressor` (bin "simple-file-compressor" test) generated 9 warnings (run `cargo fix --bin "simple-file-compressor" -p simple-file-compressor --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/simple_file_compressor-77960d52258392a4)
[INFO] [stdout] 
[INFO] [stdout] running 44 tests
[INFO] [stdout] test algorithms::arithmetic_encoder::tests::arithmetic_simple_test ... ok
[INFO] [stdout] test algorithms::burrows_wheeler::tests::burrows_wheeler_encode ... ok
[INFO] [stdout] test algorithms::burrows_wheeler::tests::burrows_wheeler_decode ... ok
[INFO] [stdout] test algorithms::burrows_wheeler::tests::bwt_encode_benchmark ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::get_encoding ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::tree_len ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::testing_indexing_by_encoding ... ok
[INFO] [stdout] test algorithms::lzw_encoder::tests::encode_n_decode_with_metadatas ... ok
[INFO] [stdout] test algorithms::lzw_encoder::tests::parsing_encoding_through_huffman_encoding ... ok
[INFO] [stdout] test algorithms::move_to_front::tests::move_to_front_decode ... ok
[INFO] [stdout] test algorithms::move_to_front::tests::move_to_front_encode ... ok
[INFO] [stdout] test algorithms::lzw_encoder::tests::test_encode ... ok
[INFO] [stdout] test algorithms::run_length_encoding::RLE::tests::rle_simple_test ... ok
[INFO] [stdout] test big_num::tests::bignum_addition ... ok
[INFO] [stdout] test big_num::tests::bignum_multiply ... ok
[INFO] [stdout] test big_num::tests::test_bits_to_decimal ... ok
[INFO] [stdout] test compressed_buffer::tests::pushing_bit ... ok
[INFO] [stdout] test fenwick_tree::tests::fenwick_tree_get_bounds ... ok
[INFO] [stdout] test fenwick_tree::tests::fenwick_tree_search_range ... ok
[INFO] [stdout] test fenwick_tree::tests::fenwick_tree_sum ... ok
[INFO] [stdout] test fenwick_tree::tests::fenwick_tree_update ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::converting_tree_to_array ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::testing_indexing_by_char ... ok
[INFO] [stdout] test algorithms::lzw_encoder::tests::test_decode ... ok
[INFO] [stdout] test algorithms::arithmetic_encoder::tests::arithmetic_encode_n_decode_with_metadatas ... ok
[INFO] [stdout] test bit_queue::bit_queue_test ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::test_decode ... ok
[INFO] [stdout] test algorithms::burrows_wheeler::tests::burrows_wheeler_encoding_with_metadatas ... ok
[INFO] [stdout] test varsize::tests::test_encode_variable_width_code ... ok
[INFO] [stdout] test utils::tests::test_entropy ... ok
[INFO] [stdout] test file_handler::tests::compress_with_huffman_then_lzw ... ok
[INFO] [stdout] test algorithms::lzw_encoder::tests::encode_n_decode_default_text_255 ... ok
[INFO] [stdout] test varsize::tests::test_decode_variable_width_code ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::tree_with_null_char ... ok
[INFO] [stdout] test algorithms::burrows_wheeler::tests::burrows_wheeler_encode_sync ... ok
[INFO] [stdout] test file_handler::tests::compress_with_lzw_then_huffman ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::encode_n_decode_with_metadatas ... ok
[INFO] [stdout] test varsize::tests::test_encode_n_decode ... ok
[INFO] [stdout] test algorithms::lzw_encoder::tests::encode_n_decode ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::test_save_n_load_tree ... FAILED
[INFO] [stdout] test file_handler::tests::test_compress_n_uncompress_with_huffman_n_lzw ... FAILED
[INFO] [stdout] test file_handler::tests::compress_with_bwt_mtf_huff ... ok
[INFO] [stdout] test algorithms::arithmetic_encoder::tests::arithmetic_medium_test ... ok
[INFO] [stdout] test algorithms::arithmetic_encoder::tests::arithmetic_extensive_test ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- algorithms::huffman_tree::tests::test_save_n_load_tree stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'algorithms::huffman_tree::tests::test_save_n_load_tree' (37) panicked at src/algorithms/huffman_tree.rs:531:14:
[INFO] [stdout] Failed to create file in src/huffman_tree.rs => fn save_as_file: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f9ba25ed4a2 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5f9ba25ed4a2 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5f9ba25ed4a2 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5f9ba25ed4a2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hb7e843cde1bc81a3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5f9ba25fdb6a - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5f9ba25fdb6a - core::fmt::write::h952c506e2dbe9cff
[INFO] [stdout]    6:     0x5f9ba25bbf86 - std::io::default_write_fmt::hd23bd8145c03a23a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5f9ba25bbf86 - std::io::Write::write_fmt::hdd3314a2bd8a34bd
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5f9ba25cc7f9 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5f9ba25cc7f9 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5f9ba25cc691 - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5f9ba255505e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb2e68dca3970e3ca
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5f9ba255505e - test::test_main_with_exit_callback::{{closure}}::ha7ec2063a2565ec3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5f9ba25ccb22 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haebee478d0f56cf4
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5f9ba25ccb22 - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5f9ba25cc8b8 - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5f9ba25c7c19 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5f9ba25b043d - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5f9ba260507c - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5f9ba2604862 - core::result::unwrap_failed::h7d4c34940aded59c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x5f9ba24fb76e - core::result::Result<T,E>::expect::h9030fadf7804639e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1185:23
[INFO] [stdout]   21:     0x5f9ba24ed60c - simple_file_compressor::algorithms::huffman_tree::HuffmanTree::save_as_file::h5a71db1c2be61df0
[INFO] [stdout]                                at /opt/rustwide/workdir/src/algorithms/huffman_tree.rs:531:14
[INFO] [stdout]   22:     0x5f9ba251948a - simple_file_compressor::algorithms::huffman_tree::tests::test_save_n_load_tree::h981bbe372f4ca41f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/algorithms/huffman_tree.rs:837:23
[INFO] [stdout]   23:     0x5f9ba2519d67 - simple_file_compressor::algorithms::huffman_tree::tests::test_save_n_load_tree::{{closure}}::hc87faae7befe3015
[INFO] [stdout]                                at /opt/rustwide/workdir/src/algorithms/huffman_tree.rs:824:31
[INFO] [stdout]   24:     0x5f9ba25277e6 - core::ops::function::FnOnce::call_once::h21723be24aa61146
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5f9ba2554e5b - core::ops::function::FnOnce::call_once::hefaf63600cd43d2a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x5f9ba2554e5b - test::__rust_begin_short_backtrace::he30322a73a0e9ea6
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:663:18
[INFO] [stdout]   27:     0x5f9ba256882a - test::run_test_in_process::{{closure}}::hdea3ab8d0243ef36
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:74
[INFO] [stdout]   28:     0x5f9ba256882a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h66d192f42498ffce
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   29:     0x5f9ba256882a - std::panicking::catch_unwind::do_call::h822e18e8d3a6bb65
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x5f9ba256882a - std::panicking::catch_unwind::h54b1de7ceab578bf
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   31:     0x5f9ba256882a - std::panic::catch_unwind::h60c29b7a9d0246b1
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x5f9ba256882a - test::run_test_in_process::h6099b5f871379b13
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:27
[INFO] [stdout]   33:     0x5f9ba256882a - test::run_test::{{closure}}::h926ce0a38281a4c8
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:607:43
[INFO] [stdout]   34:     0x5f9ba2542c84 - test::run_test::{{closure}}::h508de21a9afc7140
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:637:41
[INFO] [stdout]   35:     0x5f9ba2542c84 - std::sys::backtrace::__rust_begin_short_backtrace::h6e2f5c39ca00735a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   36:     0x5f9ba2546542 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h133e44f0e5802c14
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   37:     0x5f9ba2546542 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4718c1285283955c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   38:     0x5f9ba2546542 - std::panicking::catch_unwind::do_call::h0bba3937b4892238
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   39:     0x5f9ba2546542 - std::panicking::catch_unwind::h5b31cab5fb8c5d7f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   40:     0x5f9ba2546542 - std::panic::catch_unwind::hb2fa05d52ed0124e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x5f9ba2546542 - std::thread::lifecycle::spawn_unchecked::{{closure}}::hf401cf5ff501bd29
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   42:     0x5f9ba2546542 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h160022e94ce3b0bb
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x5f9ba25c2eaf - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf234e0d1d1d272ba
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   44:     0x5f9ba25c2eaf - std::sys::thread::unix::Thread::new::thread_start::h106a295241840d3b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stdout]   45:     0x7b4566d11aa4 - <unknown>
[INFO] [stdout]   46:     0x7b4566d9ea64 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- file_handler::tests::test_compress_n_uncompress_with_huffman_n_lzw stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'file_handler::tests::test_compress_n_uncompress_with_huffman_n_lzw' (100) panicked at src/file_handler.rs:48:50:
[INFO] [stdout] Failed to create file.: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f9ba25ed4a2 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5f9ba25ed4a2 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5f9ba25ed4a2 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5f9ba25ed4a2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hb7e843cde1bc81a3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5f9ba25fdb6a - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5f9ba25fdb6a - core::fmt::write::h952c506e2dbe9cff
[INFO] [stdout]    6:     0x5f9ba25bbf86 - std::io::default_write_fmt::hd23bd8145c03a23a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5f9ba25bbf86 - std::io::Write::write_fmt::hdd3314a2bd8a34bd
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5f9ba25cc7f9 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5f9ba25cc7f9 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5f9ba25cc691 - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5f9ba255505e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb2e68dca3970e3ca
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5f9ba255505e - test::test_main_with_exit_callback::{{closure}}::ha7ec2063a2565ec3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5f9ba25ccb22 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haebee478d0f56cf4
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5f9ba25ccb22 - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5f9ba25cc8b8 - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5f9ba25c7c19 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5f9ba25b043d - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5f9ba260507c - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5f9ba2604862 - core::result::unwrap_failed::h7d4c34940aded59c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x5f9ba24fb76e - core::result::Result<T,E>::expect::h9030fadf7804639e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1185:23
[INFO] [stdout]   21:     0x5f9ba24ffa58 - simple_file_compressor::file_handler::create_file::haecf2183fd4cb374
[INFO] [stdout]                                at /opt/rustwide/workdir/src/file_handler.rs:48:50
[INFO] [stdout]   22:     0x5f9ba2500b23 - simple_file_compressor::file_handler::compress::h99626b6e4735caa8
[INFO] [stdout]                                at /opt/rustwide/workdir/src/file_handler.rs:116:5
[INFO] [stdout]   23:     0x5f9ba250ad5b - simple_file_compressor::file_handler::tests::test_compress_n_uncompress_with_huffman_n_lzw::ha078bcdf67570af5
[INFO] [stdout]                                at /opt/rustwide/workdir/src/file_handler.rs:165:9
[INFO] [stdout]   24:     0x5f9ba250b1d7 - simple_file_compressor::file_handler::tests::test_compress_n_uncompress_with_huffman_n_lzw::{{closure}}::hbde3931d190333ab
[INFO] [stdout]                                at /opt/rustwide/workdir/src/file_handler.rs:160:55
[INFO] [stdout]   25:     0x5f9ba2528266 - core::ops::function::FnOnce::call_once::hbaf321782ee9247b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x5f9ba2554e5b - core::ops::function::FnOnce::call_once::hefaf63600cd43d2a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x5f9ba2554e5b - test::__rust_begin_short_backtrace::he30322a73a0e9ea6
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:663:18
[INFO] [stdout]   28:     0x5f9ba256882a - test::run_test_in_process::{{closure}}::hdea3ab8d0243ef36
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:74
[INFO] [stdout]   29:     0x5f9ba256882a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h66d192f42498ffce
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   30:     0x5f9ba256882a - std::panicking::catch_unwind::do_call::h822e18e8d3a6bb65
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   31:     0x5f9ba256882a - std::panicking::catch_unwind::h54b1de7ceab578bf
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   32:     0x5f9ba256882a - std::panic::catch_unwind::h60c29b7a9d0246b1
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   33:     0x5f9ba256882a - test::run_test_in_process::h6099b5f871379b13
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:27
[INFO] [stdout]   34:     0x5f9ba256882a - test::run_test::{{closure}}::h926ce0a38281a4c8
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:607:43
[INFO] [stdout]   35:     0x5f9ba2542c84 - test::run_test::{{closure}}::h508de21a9afc7140
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:637:41
[INFO] [stdout]   36:     0x5f9ba2542c84 - std::sys::backtrace::__rust_begin_short_backtrace::h6e2f5c39ca00735a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   37:     0x5f9ba2546542 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h133e44f0e5802c14
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   38:     0x5f9ba2546542 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4718c1285283955c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   39:     0x5f9ba2546542 - std::panicking::catch_unwind::do_call::h0bba3937b4892238
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   40:     0x5f9ba2546542 - std::panicking::catch_unwind::h5b31cab5fb8c5d7f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   41:     0x5f9ba2546542 - std::panic::catch_unwind::hb2fa05d52ed0124e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   42:     0x5f9ba2546542 - std::thread::lifecycle::spawn_unchecked::{{closure}}::hf401cf5ff501bd29
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   43:     0x5f9ba2546542 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h160022e94ce3b0bb
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   44:     0x5f9ba25c2eaf - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf234e0d1d1d272ba
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   45:     0x5f9ba25c2eaf - std::sys::thread::unix::Thread::new::thread_start::h106a295241840d3b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stdout]   46:     0x7b4566d11aa4 - <unknown>
[INFO] [stdout]   47:     0x7b4566d9ea64 - clone
[INFO] [stdout]   48:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     algorithms::huffman_tree::tests::test_save_n_load_tree
[INFO] [stdout]     file_handler::tests::test_compress_n_uncompress_with_huffman_n_lzw
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 42 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.46s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin simple-file-compressor`
[INFO] running `Command { std: "docker" "inspect" "086cdc33bff6bb30cbb395812b5a7413b51e6f08efa6cbd15f0ee01787a2a0f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "086cdc33bff6bb30cbb395812b5a7413b51e6f08efa6cbd15f0ee01787a2a0f9", kill_on_drop: false }`
[INFO] [stdout] 086cdc33bff6bb30cbb395812b5a7413b51e6f08efa6cbd15f0ee01787a2a0f9
