[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 master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoyousOne%2Fsimple-file-compressor" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/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-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JoyousOne/simple-file-compressor on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded docopt v1.1.1
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[INFO] [stdout] f552cf295e86db731673843814f8e389ed624ee546cf82feed15f08fd5bf01f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d48291a2d884ba0ab5a77dfed3eb29a036df77aa45003a705ecf2e88da380769
[INFO] running `Command { std: "docker" "start" "-a" "d48291a2d884ba0ab5a77dfed3eb29a036df77aa45003a705ecf2e88da380769", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-bigint v0.4.6
[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 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 27.31s
[INFO] running `Command { std: "docker" "inspect" "d48291a2d884ba0ab5a77dfed3eb29a036df77aa45003a705ecf2e88da380769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d48291a2d884ba0ab5a77dfed3eb29a036df77aa45003a705ecf2e88da380769", kill_on_drop: false }`
[INFO] [stdout] d48291a2d884ba0ab5a77dfed3eb29a036df77aa45003a705ecf2e88da380769
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ddaae9d265ca9d29326f96f9f659a4e923198ee545996b6758ec8ab67b3b9be
[INFO] running `Command { std: "docker" "start" "-a" "7ddaae9d265ca9d29326f96f9f659a4e923198ee545996b6758ec8ab67b3b9be", 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 1.89s
[INFO] running `Command { std: "docker" "inspect" "7ddaae9d265ca9d29326f96f9f659a4e923198ee545996b6758ec8ab67b3b9be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ddaae9d265ca9d29326f96f9f659a4e923198ee545996b6758ec8ab67b3b9be", kill_on_drop: false }`
[INFO] [stdout] 7ddaae9d265ca9d29326f96f9f659a4e923198ee545996b6758ec8ab67b3b9be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b80624be1175d71fb45812219066b43fd7ba4d4cb35703357d5a9c2e1e3d8d08
[INFO] running `Command { std: "docker" "start" "-a" "b80624be1175d71fb45812219066b43fd7ba4d4cb35703357d5a9c2e1e3d8d08", 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 0.10s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/simple_file_compressor-73ca0f651dc8cb7a)
[INFO] [stdout] 
[INFO] [stdout] running 44 tests
[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::burrows_wheeler_decode ... ok
[INFO] [stdout] test algorithms::burrows_wheeler::tests::bwt_encode_benchmark ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::encode_n_decode_with_metadatas ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::converting_tree_to_array ... ok
[INFO] [stdout] test algorithms::arithmetic_encoder::tests::arithmetic_simple_test ... 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_sync ... ok
[INFO] [stdout] test algorithms::burrows_wheeler::tests::burrows_wheeler_encoding_with_metadatas ... 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::testing_indexing_by_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::test_encode ... ok
[INFO] [stdout] test algorithms::lzw_encoder::tests::test_decode ... 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 big_num::tests::bignum_addition ... ok
[INFO] [stdout] test algorithms::lzw_encoder::tests::parsing_encoding_through_huffman_encoding ... ok
[INFO] [stdout] test algorithms::run_length_encoding::RLE::tests::rle_simple_test ... ok
[INFO] [stdout] test algorithms::huffman_tree::tests::tree_with_null_char ... ok
[INFO] [stdout] test algorithms::lzw_encoder::tests::encode_n_decode_default_text_255 ... ok
[INFO] [stdout] test compressed_buffer::tests::pushing_bit ... ok
[INFO] [stdout] test fenwick_tree::tests::fenwick_tree_search_range ... ok
[INFO] [stdout] test big_num::tests::bignum_multiply ... ok
[INFO] [stdout] test bit_queue::bit_queue_test ... ok
[INFO] [stdout] test fenwick_tree::tests::fenwick_tree_get_bounds ... ok
[INFO] [stdout] test fenwick_tree::tests::fenwick_tree_sum ... ok
[INFO] [stdout] test big_num::tests::test_bits_to_decimal ... ok
[INFO] [stdout] test fenwick_tree::tests::fenwick_tree_update ... ok
[INFO] [stdout] test file_handler::tests::compress_with_lzw_then_huffman ... ok
[INFO] [stdout] test file_handler::tests::compress_with_huffman_then_lzw ... ok
[INFO] [stdout] test utils::tests::test_entropy ... ok
[INFO] [stdout] test varsize::tests::test_encode_variable_width_code ... 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 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' (30) 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:     0x64255e2b65c2 - std[3b51380354919863]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x64255e2b65c2 - std[3b51380354919863]::backtrace_rs::backtrace::trace_unsynchronized::<std[3b51380354919863]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x64255e2b65c2 - std[3b51380354919863]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x64255e2b65c2 - <<std[3b51380354919863]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[27de1724e4349be2]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x64255e2cb35a - <core[27de1724e4349be2]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x64255e2cb35a - core[27de1724e4349be2]::fmt::write
[INFO] [stdout]    6:     0x64255e2bb436 - std[3b51380354919863]::io::default_write_fmt::<alloc[a57f19327c0ad893]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x64255e2bb436 - <alloc[a57f19327c0ad893]::vec::Vec<u8> as std[3b51380354919863]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x64255e29462f - <std[3b51380354919863]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x64255e29462f - std[3b51380354919863]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x64255e2ae489 - std[3b51380354919863]::panicking::default_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x64255e20b21e - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x64255e20b21e - test[182b2e79ecd7bbd9]::test_main_with_exit_callback::<test[182b2e79ecd7bbd9]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x64255e2ae6f2 - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x64255e2ae6f2 - std[3b51380354919863]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x64255e2946e8 - std[3b51380354919863]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x64255e289869 - std[3b51380354919863]::sys::backtrace::__rust_end_short_backtrace::<std[3b51380354919863]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x64255e29553d - __rustc[d79c0ace40940972]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x64255e2cba6c - core[27de1724e4349be2]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x64255e2cb7e2 - core[27de1724e4349be2]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x64255e1c3cfe - <core[27de1724e4349be2]::result::Result<std[3b51380354919863]::fs::File, std[3b51380354919863]::io::error::Error>>::expect
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/result.rs:1185:23
[INFO] [stdout]   21:     0x64255e1eecfc - <simple_file_compressor[dd8325177baa83d0]::algorithms::huffman_tree::HuffmanTree>::save_as_file
[INFO] [stdout]                                at /opt/rustwide/workdir/src/algorithms/huffman_tree.rs:531:14
[INFO] [stdout]   22:     0x64255e1c608a - simple_file_compressor[dd8325177baa83d0]::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:     0x64255e1c3a57 - simple_file_compressor[dd8325177baa83d0]::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:     0x64255e1bf2f6 - <simple_file_compressor[dd8325177baa83d0]::algorithms::huffman_tree::tests::test_save_n_load_tree::{closure#0} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x64255e1ff5cb - <fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x64255e1ff5cb - test[182b2e79ecd7bbd9]::__rust_begin_short_backtrace::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:663:18
[INFO] [stdout]   27:     0x64255e20be2a - test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:74
[INFO] [stdout]   28:     0x64255e20be2a - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   29:     0x64255e20be2a - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x64255e20be2a - std[3b51380354919863]::panicking::catch_unwind::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   31:     0x64255e20be2a - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x64255e20be2a - test[182b2e79ecd7bbd9]::run_test_in_process
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:27
[INFO] [stdout]   33:     0x64255e20be2a - test[182b2e79ecd7bbd9]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:607:43
[INFO] [stdout]   34:     0x64255e2073d4 - test[182b2e79ecd7bbd9]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:637:41
[INFO] [stdout]   35:     0x64255e2073d4 - std[3b51380354919863]::sys::backtrace::__rust_begin_short_backtrace::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   36:     0x64255e20e922 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   37:     0x64255e20e922 - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   38:     0x64255e20e922 - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   39:     0x64255e20e922 - std[3b51380354919863]::panicking::catch_unwind::<(), core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   40:     0x64255e20e922 - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x64255e20e922 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   42:     0x64255e20e922 - <std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x64255e2b5aff - <alloc[a57f19327c0ad893]::boxed::Box<dyn core[27de1724e4349be2]::ops::function::FnOnce<(), Output = ()> + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   44:     0x64255e2b5aff - <std[3b51380354919863]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   45:     0x7d410734caa4 - <unknown>
[INFO] [stdout]   46:     0x7d41073d9a64 - 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:     0x64255e2b65c2 - std[3b51380354919863]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x64255e2b65c2 - std[3b51380354919863]::backtrace_rs::backtrace::trace_unsynchronized::<std[3b51380354919863]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x64255e2b65c2 - std[3b51380354919863]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x64255e2b65c2 - <<std[3b51380354919863]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[27de1724e4349be2]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x64255e2cb35a - <core[27de1724e4349be2]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x64255e2cb35a - core[27de1724e4349be2]::fmt::write
[INFO] [stdout]    6:     0x64255e2bb436 - std[3b51380354919863]::io::default_write_fmt::<alloc[a57f19327c0ad893]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x64255e2bb436 - <alloc[a57f19327c0ad893]::vec::Vec<u8> as std[3b51380354919863]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x64255e29462f - <std[3b51380354919863]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x64255e29462f - std[3b51380354919863]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x64255e2ae489 - std[3b51380354919863]::panicking::default_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x64255e20b21e - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x64255e20b21e - test[182b2e79ecd7bbd9]::test_main_with_exit_callback::<test[182b2e79ecd7bbd9]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x64255e2ae6f2 - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x64255e2ae6f2 - std[3b51380354919863]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x64255e2946e8 - std[3b51380354919863]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x64255e289869 - std[3b51380354919863]::sys::backtrace::__rust_end_short_backtrace::<std[3b51380354919863]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x64255e29553d - __rustc[d79c0ace40940972]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x64255e2cba6c - core[27de1724e4349be2]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x64255e2cb7e2 - core[27de1724e4349be2]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x64255e1c3cfe - <core[27de1724e4349be2]::result::Result<std[3b51380354919863]::fs::File, std[3b51380354919863]::io::error::Error>>::expect
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/result.rs:1185:23
[INFO] [stdout]   21:     0x64255e1b8358 - simple_file_compressor[dd8325177baa83d0]::file_handler::create_file
[INFO] [stdout]                                at /opt/rustwide/workdir/src/file_handler.rs:48:50
[INFO] [stdout]   22:     0x64255e1b9423 - simple_file_compressor[dd8325177baa83d0]::file_handler::compress
[INFO] [stdout]                                at /opt/rustwide/workdir/src/file_handler.rs:116:5
[INFO] [stdout]   23:     0x64255e1daa5b - simple_file_compressor[dd8325177baa83d0]::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:     0x64255e1d9c07 - simple_file_compressor[dd8325177baa83d0]::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:     0x64255e1bee76 - <simple_file_compressor[dd8325177baa83d0]::file_handler::tests::test_compress_n_uncompress_with_huffman_n_lzw::{closure#0} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x64255e1ff5cb - <fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x64255e1ff5cb - test[182b2e79ecd7bbd9]::__rust_begin_short_backtrace::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:663:18
[INFO] [stdout]   28:     0x64255e20be2a - test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:74
[INFO] [stdout]   29:     0x64255e20be2a - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   30:     0x64255e20be2a - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   31:     0x64255e20be2a - std[3b51380354919863]::panicking::catch_unwind::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   32:     0x64255e20be2a - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   33:     0x64255e20be2a - test[182b2e79ecd7bbd9]::run_test_in_process
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:27
[INFO] [stdout]   34:     0x64255e20be2a - test[182b2e79ecd7bbd9]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:607:43
[INFO] [stdout]   35:     0x64255e2073d4 - test[182b2e79ecd7bbd9]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:637:41
[INFO] [stdout]   36:     0x64255e2073d4 - std[3b51380354919863]::sys::backtrace::__rust_begin_short_backtrace::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   37:     0x64255e20e922 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   38:     0x64255e20e922 - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   39:     0x64255e20e922 - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   40:     0x64255e20e922 - std[3b51380354919863]::panicking::catch_unwind::<(), core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   41:     0x64255e20e922 - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   42:     0x64255e20e922 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   43:     0x64255e20e922 - <std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   44:     0x64255e2b5aff - <alloc[a57f19327c0ad893]::boxed::Box<dyn core[27de1724e4349be2]::ops::function::FnOnce<(), Output = ()> + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   45:     0x64255e2b5aff - <std[3b51380354919863]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   46:     0x7d410734caa4 - <unknown>
[INFO] [stdout]   47:     0x7d41073d9a64 - 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 4.91s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin simple-file-compressor`
[INFO] running `Command { std: "docker" "inspect" "b80624be1175d71fb45812219066b43fd7ba4d4cb35703357d5a9c2e1e3d8d08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b80624be1175d71fb45812219066b43fd7ba4d4cb35703357d5a9c2e1e3d8d08", kill_on_drop: false }`
[INFO] [stdout] b80624be1175d71fb45812219066b43fd7ba4d4cb35703357d5a9c2e1e3d8d08
