[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 try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoyousOne%2Fsimple-file-compressor" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-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-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JoyousOne/simple-file-compressor on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b865a822be698deef9ab22384270ea80fc9360b7242f7c0f48afcfaaeb0a775c
[INFO] running `Command { std: "docker" "start" "-a" "b865a822be698deef9ab22384270ea80fc9360b7242f7c0f48afcfaaeb0a775c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b865a822be698deef9ab22384270ea80fc9360b7242f7c0f48afcfaaeb0a775c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b865a822be698deef9ab22384270ea80fc9360b7242f7c0f48afcfaaeb0a775c", kill_on_drop: false }`
[INFO] [stdout] b865a822be698deef9ab22384270ea80fc9360b7242f7c0f48afcfaaeb0a775c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 93157d946940e166ef2a6632d06f7ea1eeee87e4f0c3d3d1711f36ba6c69be3c
[INFO] running `Command { std: "docker" "start" "-a" "93157d946940e166ef2a6632d06f7ea1eeee87e4f0c3d3d1711f36ba6c69be3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling rayon v1.10.0
[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 36.68s
[INFO] running `Command { std: "docker" "inspect" "93157d946940e166ef2a6632d06f7ea1eeee87e4f0c3d3d1711f36ba6c69be3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93157d946940e166ef2a6632d06f7ea1eeee87e4f0c3d3d1711f36ba6c69be3c", kill_on_drop: false }`
[INFO] [stdout] 93157d946940e166ef2a6632d06f7ea1eeee87e4f0c3d3d1711f36ba6c69be3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 68702f27041591fc08190f065f42827c6d505405b62100857031470f538c2aa6
[INFO] running `Command { std: "docker" "start" "-a" "68702f27041591fc08190f065f42827c6d505405b62100857031470f538c2aa6", 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 2.66s
[INFO] running `Command { std: "docker" "inspect" "68702f27041591fc08190f065f42827c6d505405b62100857031470f538c2aa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68702f27041591fc08190f065f42827c6d505405b62100857031470f538c2aa6", kill_on_drop: false }`
[INFO] [stdout] 68702f27041591fc08190f065f42827c6d505405b62100857031470f538c2aa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 3f75e4bc5599115dc187ad1696e72bd7a80f75855eeaf42be2c9aad863b1306a
[INFO] running `Command { std: "docker" "start" "-a" "3f75e4bc5599115dc187ad1696e72bd7a80f75855eeaf42be2c9aad863b1306a", 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 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/build/simple-file-compressor/73ca0f651dc8cb7a/deps/simple_file_compressor-73ca0f651dc8cb7a)
[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_decode ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::converting_tree_to_array ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::encode_n_decode_with_metadatas ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::get_encoding ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::test_decode ... ok
[INFO] [stdout] test algorithms::burrows_wheeler::tests::burrows_wheeler_encode ... ok
[INFO] [stdout] test algorithms::arithmetic_encoder::tests::arithmetic_encode_n_decode_with_metadatas ... ok
[INFO] [stdout] test algorithms::burrows_wheeler::tests::bwt_encode_benchmark ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::testing_indexing_by_char ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::testing_indexing_by_encoding ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::tree_len ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::tree_with_null_char ... ok
[INFO] [stdout] test algorithms::lzw_encoder::tests::encode_n_decode ... 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::lzw_encoder::tests::encode_n_decode_default_text_255 ... ok
[INFO] [stdout] test algorithms::burrows_wheeler::tests::burrows_wheeler_encode_sync ... ok
[INFO] [stdout] test algorithms::burrows_wheeler::tests::burrows_wheeler_encoding_with_metadatas ... ok
[INFO] [stdout] test algorithms::lzw_encoder::tests::test_decode ... ok
[INFO] [stdout] test algorithms::lzw_encoder::tests::test_encode ... ok
[INFO] [stdout] test algorithms::move_to_front::tests::move_to_front_decode ... ok
[INFO] [stdout] test big_num::tests::bignum_addition ... ok
[INFO] [stdout] test algorithms::move_to_front::tests::move_to_front_encode ... ok
[INFO] [stdout] test big_num::tests::test_bits_to_decimal ... ok
[INFO] [stdout] test bit_queue::bit_queue_test ... ok
[INFO] [stdout] test compressed_buffer::tests::pushing_bit ... ok
[INFO] [stdout] test fenwick_tree::tests::fenwick_tree_sum ... ok
[INFO] [stdout] test fenwick_tree::tests::fenwick_tree_search_range ... ok
[INFO] [stdout] test fenwick_tree::tests::fenwick_tree_update ... ok
[INFO] [stdout] test fenwick_tree::tests::fenwick_tree_get_bounds ... ok
[INFO] [stdout] test file_handler::tests::compress_with_huffman_then_lzw ... ok
[INFO] [stdout] test file_handler::tests::compress_with_lzw_then_huffman ... ok
[INFO] [stdout] test utils::tests::test_entropy ... ok
[INFO] [stdout] test varsize::tests::test_decode_variable_width_code ... ok
[INFO] [stdout] test varsize::tests::test_encode_n_decode ... ok
[INFO] [stdout] test varsize::tests::test_encode_variable_width_code ... ok
[INFO] [stdout] test big_num::tests::bignum_multiply ... ok
[INFO] [stdout] test algorithms::run_length_encoding::RLE::tests::rle_simple_test ... 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' (34) 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:     0x6070e1c32872 - std[840933623431fd06]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6070e1c32872 - std[840933623431fd06]::backtrace_rs::backtrace::trace_unsynchronized::<std[840933623431fd06]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6070e1c32872 - std[840933623431fd06]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x6070e1c32872 - <<std[840933623431fd06]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[8f93d80df273fe75]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x6070e1c4763a - <core[8f93d80df273fe75]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x6070e1c4763a - core[8f93d80df273fe75]::fmt::write
[INFO] [stdout]    6:     0x6070e1c37716 - std[840933623431fd06]::io::default_write_fmt::<alloc[40b2bae28975ac47]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6070e1c37716 - <alloc[40b2bae28975ac47]::vec::Vec<u8> as std[840933623431fd06]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x6070e1c1060f - <std[840933623431fd06]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x6070e1c1060f - std[840933623431fd06]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x6070e1c2a789 - std[840933623431fd06]::panicking::default_hook
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x6070e1b8996e - <alloc[40b2bae28975ac47]::boxed::Box<dyn for<'a, 'b> core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x6070e1b8996e - test[2f1252070343a163]::test_main_with_exit_callback::<test[2f1252070343a163]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x6070e1c2a9f2 - <alloc[40b2bae28975ac47]::boxed::Box<dyn for<'a, 'b> core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x6070e1c2a9f2 - std[840933623431fd06]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x6070e1c106c8 - std[840933623431fd06]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x6070e1c07f99 - std[840933623431fd06]::sys::backtrace::__rust_end_short_backtrace::<std[840933623431fd06]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x6070e1c1151d - __rustc[5b4a0c6d8cc4a177]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x6070e1c47d4c - core[8f93d80df273fe75]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x6070e1c47ac2 - core[8f93d80df273fe75]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x6070e1b6bf4e - <core[8f93d80df273fe75]::result::Result<std[840933623431fd06]::fs::File, std[840933623431fd06]::io::error::Error>>::expect
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/result.rs:1185:23
[INFO] [stdout]   21:     0x6070e1b3dbfc - <simple_file_compressor[250557a5a6663868]::algorithms::huffman_tree::HuffmanTree>::save_as_file
[INFO] [stdout]                                at /opt/rustwide/workdir/src/algorithms/huffman_tree.rs:531:14
[INFO] [stdout]   22:     0x6070e1b4d7fa - simple_file_compressor[250557a5a6663868]::algorithms::huffman_tree::tests::test_save_n_load_tree
[INFO] [stdout]                                at /opt/rustwide/workdir/src/algorithms/huffman_tree.rs:837:23
[INFO] [stdout]   23:     0x6070e1b4b3b7 - simple_file_compressor[250557a5a6663868]::algorithms::huffman_tree::tests::test_save_n_load_tree::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/algorithms/huffman_tree.rs:824:31
[INFO] [stdout]   24:     0x6070e1b61d36 - <simple_file_compressor[250557a5a6663868]::algorithms::huffman_tree::tests::test_save_n_load_tree::{closure#0} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x6070e1b7dd1b - <fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x6070e1b7dd1b - test[2f1252070343a163]::__rust_begin_short_backtrace::<core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>, fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:663:18
[INFO] [stdout]   27:     0x6070e1b8a57a - test[2f1252070343a163]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:74
[INFO] [stdout]   28:     0x6070e1b8a57a - <core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   29:     0x6070e1b8a57a - std[840933623431fd06]::panicking::catch_unwind::do_call::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x6070e1b8a57a - std[840933623431fd06]::panicking::catch_unwind::<core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>, core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stdout]   31:     0x6070e1b8a57a - std[840933623431fd06]::panic::catch_unwind::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x6070e1b8a57a - test[2f1252070343a163]::run_test_in_process
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:27
[INFO] [stdout]   33:     0x6070e1b8a57a - test[2f1252070343a163]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:607:43
[INFO] [stdout]   34:     0x6070e1b84a44 - test[2f1252070343a163]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:637:41
[INFO] [stdout]   35:     0x6070e1b84a44 - std[840933623431fd06]::sys::backtrace::__rust_begin_short_backtrace::<test[2f1252070343a163]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   36:     0x6070e1b8d072 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   37:     0x6070e1b8d072 - <core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   38:     0x6070e1b8d072 - std[840933623431fd06]::panicking::catch_unwind::do_call::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stdout]   39:     0x6070e1b8d072 - std[840933623431fd06]::panicking::catch_unwind::<(), core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stdout]   40:     0x6070e1b8d072 - std[840933623431fd06]::panic::catch_unwind::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x6070e1b8d072 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   42:     0x6070e1b8d072 - <std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x6070e1c31daf - <alloc[40b2bae28975ac47]::boxed::Box<dyn core[8f93d80df273fe75]::ops::function::FnOnce<(), Output = ()> + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   44:     0x6070e1c31daf - <std[840933623431fd06]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   45:     0x748d16469aa4 - <unknown>
[INFO] [stdout]   46:     0x748d164f6a64 - 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' (80) 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:     0x6070e1c32872 - std[840933623431fd06]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6070e1c32872 - std[840933623431fd06]::backtrace_rs::backtrace::trace_unsynchronized::<std[840933623431fd06]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6070e1c32872 - std[840933623431fd06]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x6070e1c32872 - <<std[840933623431fd06]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[8f93d80df273fe75]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x6070e1c4763a - <core[8f93d80df273fe75]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x6070e1c4763a - core[8f93d80df273fe75]::fmt::write
[INFO] [stdout]    6:     0x6070e1c37716 - std[840933623431fd06]::io::default_write_fmt::<alloc[40b2bae28975ac47]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6070e1c37716 - <alloc[40b2bae28975ac47]::vec::Vec<u8> as std[840933623431fd06]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x6070e1c1060f - <std[840933623431fd06]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x6070e1c1060f - std[840933623431fd06]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x6070e1c2a789 - std[840933623431fd06]::panicking::default_hook
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x6070e1b8996e - <alloc[40b2bae28975ac47]::boxed::Box<dyn for<'a, 'b> core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x6070e1b8996e - test[2f1252070343a163]::test_main_with_exit_callback::<test[2f1252070343a163]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x6070e1c2a9f2 - <alloc[40b2bae28975ac47]::boxed::Box<dyn for<'a, 'b> core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x6070e1c2a9f2 - std[840933623431fd06]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x6070e1c106c8 - std[840933623431fd06]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x6070e1c07f99 - std[840933623431fd06]::sys::backtrace::__rust_end_short_backtrace::<std[840933623431fd06]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x6070e1c1151d - __rustc[5b4a0c6d8cc4a177]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x6070e1c47d4c - core[8f93d80df273fe75]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x6070e1c47ac2 - core[8f93d80df273fe75]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x6070e1b6bf4e - <core[8f93d80df273fe75]::result::Result<std[840933623431fd06]::fs::File, std[840933623431fd06]::io::error::Error>>::expect
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/result.rs:1185:23
[INFO] [stdout]   21:     0x6070e1b5e9d8 - simple_file_compressor[250557a5a6663868]::file_handler::create_file
[INFO] [stdout]                                at /opt/rustwide/workdir/src/file_handler.rs:48:50
[INFO] [stdout]   22:     0x6070e1b5faa3 - simple_file_compressor[250557a5a6663868]::file_handler::compress
[INFO] [stdout]                                at /opt/rustwide/workdir/src/file_handler.rs:116:5
[INFO] [stdout]   23:     0x6070e1b56e3b - simple_file_compressor[250557a5a6663868]::file_handler::tests::test_compress_n_uncompress_with_huffman_n_lzw
[INFO] [stdout]                                at /opt/rustwide/workdir/src/file_handler.rs:165:9
[INFO] [stdout]   24:     0x6070e1b55f57 - simple_file_compressor[250557a5a6663868]::file_handler::tests::test_compress_n_uncompress_with_huffman_n_lzw::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/file_handler.rs:160:55
[INFO] [stdout]   25:     0x6070e1b618b6 - <simple_file_compressor[250557a5a6663868]::file_handler::tests::test_compress_n_uncompress_with_huffman_n_lzw::{closure#0} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x6070e1b7dd1b - <fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x6070e1b7dd1b - test[2f1252070343a163]::__rust_begin_short_backtrace::<core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>, fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:663:18
[INFO] [stdout]   28:     0x6070e1b8a57a - test[2f1252070343a163]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:74
[INFO] [stdout]   29:     0x6070e1b8a57a - <core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   30:     0x6070e1b8a57a - std[840933623431fd06]::panicking::catch_unwind::do_call::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stdout]   31:     0x6070e1b8a57a - std[840933623431fd06]::panicking::catch_unwind::<core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>, core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stdout]   32:     0x6070e1b8a57a - std[840933623431fd06]::panic::catch_unwind::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stdout]   33:     0x6070e1b8a57a - test[2f1252070343a163]::run_test_in_process
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:27
[INFO] [stdout]   34:     0x6070e1b8a57a - test[2f1252070343a163]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:607:43
[INFO] [stdout]   35:     0x6070e1b84a44 - test[2f1252070343a163]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:637:41
[INFO] [stdout]   36:     0x6070e1b84a44 - std[840933623431fd06]::sys::backtrace::__rust_begin_short_backtrace::<test[2f1252070343a163]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   37:     0x6070e1b8d072 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   38:     0x6070e1b8d072 - <core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   39:     0x6070e1b8d072 - std[840933623431fd06]::panicking::catch_unwind::do_call::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stdout]   40:     0x6070e1b8d072 - std[840933623431fd06]::panicking::catch_unwind::<(), core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stdout]   41:     0x6070e1b8d072 - std[840933623431fd06]::panic::catch_unwind::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stdout]   42:     0x6070e1b8d072 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   43:     0x6070e1b8d072 - <std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   44:     0x6070e1c31daf - <alloc[40b2bae28975ac47]::boxed::Box<dyn core[8f93d80df273fe75]::ops::function::FnOnce<(), Output = ()> + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   45:     0x6070e1c31daf - <std[840933623431fd06]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   46:     0x748d16469aa4 - <unknown>
[INFO] [stdout]   47:     0x748d164f6a64 - 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 5.86s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin simple-file-compressor`
[INFO] running `Command { std: "docker" "inspect" "3f75e4bc5599115dc187ad1696e72bd7a80f75855eeaf42be2c9aad863b1306a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f75e4bc5599115dc187ad1696e72bd7a80f75855eeaf42be2c9aad863b1306a", kill_on_drop: false }`
[INFO] [stdout] 3f75e4bc5599115dc187ad1696e72bd7a80f75855eeaf42be2c9aad863b1306a
