[INFO] cloning repository https://github.com/wychu413/compression
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wychu413/compression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwychu413%2Fcompression", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwychu413%2Fcompression'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae5b1571ff87a5fe67e09413bcdb2ee37536364b
[INFO] testing wychu413/compression against master#1ddedbaa5919b7b3e70d984660e21e844c615c97 for pr-128400
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwychu413%2Fcompression" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wychu413/compression on toolchain 1ddedbaa5919b7b3e70d984660e21e844c615c97
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wychu413/compression
[INFO] finished tweaking git repo https://github.com/wychu413/compression
[INFO] tweaked toml for git repo https://github.com/wychu413/compression written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wychu413/compression 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" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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_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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4b6e2cb3503cce5278d5d4bc7b6580d1fa12593d53044a46de5c9a1b09f3f87
[INFO] running `Command { std: "docker" "start" "-a" "e4b6e2cb3503cce5278d5d4bc7b6580d1fa12593d53044a46de5c9a1b09f3f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4b6e2cb3503cce5278d5d4bc7b6580d1fa12593d53044a46de5c9a1b09f3f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4b6e2cb3503cce5278d5d4bc7b6580d1fa12593d53044a46de5c9a1b09f3f87", kill_on_drop: false }`
[INFO] [stdout] e4b6e2cb3503cce5278d5d4bc7b6580d1fa12593d53044a46de5c9a1b09f3f87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa3af941a04f74b55d1fa89db4a69c73b2d0895b45f4160b59c41a6f5e92d25a
[INFO] running `Command { std: "docker" "start" "-a" "fa3af941a04f74b55d1fa89db4a69c73b2d0895b45f4160b59c41a6f5e92d25a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling compression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bit_vec::BitVec`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bit_vec::BitVec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bit_vec::BitVec`
[INFO] [stdout]  --> src/compressor/huffman.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bit_vec::BitVec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `compressor::compressor::Compressor`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use compressor::compressor::Compressor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `map`
[INFO] [stdout]   --> src/compressor/huffman.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let map = HashMap::<u8, u32>::new();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_map`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `algo`, `is_decompress`, `input_file`, and `output_file` are never read
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Config {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 15 |     // the algorithm to compress/decompress the data
[INFO] [stdout] 16 |     algo: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     // compress/decompress
[INFO] [stdout] 18 |     is_decompress: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 19 |     // the input file name
[INFO] [stdout] 20 |     input_file: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     output_file: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `symbol` is never read
[INFO] [stdout]   --> src/compressor/huffman.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Leaf {
[INFO] [stdout]    |     ---- field in this variant
[INFO] [stdout] 66 |         freq: u32,
[INFO] [stdout] 67 |         symbol: u8,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HuffmanTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `left` and `right` are never read
[INFO] [stdout]   --> src/compressor/huffman.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     Tree {
[INFO] [stdout]    |     ---- fields in this variant
[INFO] [stdout] ...
[INFO] [stdout] 74 |         left: Box<HuffmanTree>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 75 |         // Right SubTree
[INFO] [stdout] 76 |         right: Box<HuffmanTree>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HuffmanTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `make_canonical_huffman_code_table` is never used
[INFO] [stdout]   --> src/compressor/huffman.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | impl HuffmanTree {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 88 |     fn make_canonical_huffman_code_table(&self) 
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `Command { std: "docker" "inspect" "fa3af941a04f74b55d1fa89db4a69c73b2d0895b45f4160b59c41a6f5e92d25a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa3af941a04f74b55d1fa89db4a69c73b2d0895b45f4160b59c41a6f5e92d25a", kill_on_drop: false }`
[INFO] [stdout] fa3af941a04f74b55d1fa89db4a69c73b2d0895b45f4160b59c41a6f5e92d25a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f62516f295eaae8e7222e19feb5f847fd2418fbe0263eee13fc71e8644b16450
[INFO] running `Command { std: "docker" "start" "-a" "f62516f295eaae8e7222e19feb5f847fd2418fbe0263eee13fc71e8644b16450", kill_on_drop: false }`
[INFO] [stderr]    Compiling compression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bit_vec::BitVec`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bit_vec::BitVec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bit_vec::BitVec`
[INFO] [stdout]  --> src/compressor/huffman.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bit_vec::BitVec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `compressor::compressor::Compressor`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use compressor::compressor::Compressor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `map`
[INFO] [stdout]   --> src/compressor/huffman.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let map = HashMap::<u8, u32>::new();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_map`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `algo`, `is_decompress`, `input_file`, and `output_file` are never read
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Config {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 15 |     // the algorithm to compress/decompress the data
[INFO] [stdout] 16 |     algo: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     // compress/decompress
[INFO] [stdout] 18 |     is_decompress: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 19 |     // the input file name
[INFO] [stdout] 20 |     input_file: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     output_file: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `symbol` is never read
[INFO] [stdout]   --> src/compressor/huffman.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Leaf {
[INFO] [stdout]    |     ---- field in this variant
[INFO] [stdout] 66 |         freq: u32,
[INFO] [stdout] 67 |         symbol: u8,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HuffmanTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `left` and `right` are never read
[INFO] [stdout]   --> src/compressor/huffman.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     Tree {
[INFO] [stdout]    |     ---- fields in this variant
[INFO] [stdout] ...
[INFO] [stdout] 74 |         left: Box<HuffmanTree>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 75 |         // Right SubTree
[INFO] [stdout] 76 |         right: Box<HuffmanTree>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HuffmanTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `make_canonical_huffman_code_table` is never used
[INFO] [stdout]   --> src/compressor/huffman.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | impl HuffmanTree {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 88 |     fn make_canonical_huffman_code_table(&self) 
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "f62516f295eaae8e7222e19feb5f847fd2418fbe0263eee13fc71e8644b16450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f62516f295eaae8e7222e19feb5f847fd2418fbe0263eee13fc71e8644b16450", kill_on_drop: false }`
[INFO] [stdout] f62516f295eaae8e7222e19feb5f847fd2418fbe0263eee13fc71e8644b16450
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 54755570ad0ffa71b8ddd1dfb9d1c5e50ecddada71f41163a6d6fb4ada8d50e0
[INFO] running `Command { std: "docker" "start" "-a" "54755570ad0ffa71b8ddd1dfb9d1c5e50ecddada71f41163a6d6fb4ada8d50e0", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `bit_vec::BitVec`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use bit_vec::BitVec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `bit_vec::BitVec`
[INFO] [stderr]  --> src/compressor/huffman.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use bit_vec::BitVec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `compressor::compressor::Compressor`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use compressor::compressor::Compressor;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `map`
[INFO] [stderr]   --> src/compressor/huffman.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let map = HashMap::<u8, u32>::new();
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_map`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `algo`, `is_decompress`, `input_file`, and `output_file` are never read
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | struct Config {
[INFO] [stderr]    |        ------ fields in this struct
[INFO] [stderr] 15 |     // the algorithm to compress/decompress the data
[INFO] [stderr] 16 |     algo: String,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 17 |     // compress/decompress
[INFO] [stderr] 18 |     is_decompress: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 19 |     // the input file name
[INFO] [stderr] 20 |     input_file: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 24 |     output_file: String,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `symbol` is never read
[INFO] [stderr]   --> src/compressor/huffman.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |     Leaf {
[INFO] [stderr]    |     ---- field in this variant
[INFO] [stderr] 66 |         freq: u32,
[INFO] [stderr] 67 |         symbol: u8,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `HuffmanTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `left` and `right` are never read
[INFO] [stderr]   --> src/compressor/huffman.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     Tree {
[INFO] [stderr]    |     ---- fields in this variant
[INFO] [stderr] ...
[INFO] [stderr] 74 |         left: Box<HuffmanTree>,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 75 |         // Right SubTree
[INFO] [stderr] 76 |         right: Box<HuffmanTree>,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `HuffmanTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `make_canonical_huffman_code_table` is never used
[INFO] [stderr]   --> src/compressor/huffman.rs:88:8
[INFO] [stderr]    |
[INFO] [stderr] 80 | impl HuffmanTree {
[INFO] [stderr]    | ---------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 88 |     fn make_canonical_huffman_code_table(&self) 
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `compression` (bin "compression" test) generated 8 warnings (run `cargo fix --bin "compression" --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/compression-30462186b1570f03)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_huffman_compressor ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/compression-bf1bcf3e6ab4fd4e)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test compressor::huffman::test_make_tree ... ok
[INFO] [stdout] test pkg::util::test_bytes_freq_count ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests compression
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "54755570ad0ffa71b8ddd1dfb9d1c5e50ecddada71f41163a6d6fb4ada8d50e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54755570ad0ffa71b8ddd1dfb9d1c5e50ecddada71f41163a6d6fb4ada8d50e0", kill_on_drop: false }`
[INFO] [stdout] 54755570ad0ffa71b8ddd1dfb9d1c5e50ecddada71f41163a6d6fb4ada8d50e0