[INFO] cloning repository https://github.com/akperrine/pngme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/akperrine/pngme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakperrine%2Fpngme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakperrine%2Fpngme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 554d48cbe0a5f4bbc256dfede041481b71b10678
[INFO] checking akperrine/pngme against c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40 for pr-160391-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakperrine%2Fpngme" "/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/akperrine/pngme
[INFO] finished tweaking git repo https://github.com/akperrine/pngme
[INFO] tweaked toml for git repo https://github.com/akperrine/pngme written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/akperrine/pngme on toolchain c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/akperrine/pngme 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" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded errno v0.3.4
[INFO] [stderr]   Downloaded clap_derive v4.4.2
[INFO] [stderr]   Downloaded clap v4.4.6
[INFO] [stderr]   Downloaded clap_lex v0.5.1
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[INFO] [stderr]   Downloaded syn v2.0.37
[INFO] [stderr]   Downloaded rustix v0.38.17
[INFO] [stderr]   Downloaded linux-raw-sys v0.4.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a746ff31c1787459010413a17add44934a3928260ff5644c26c501f4437596ab
[INFO] running `Command { std: "docker" "start" "a746ff31c1787459010413a17add44934a3928260ff5644c26c501f4437596ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a746ff31c1787459010413a17add44934a3928260ff5644c26c501f4437596ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a746ff31c1787459010413a17add44934a3928260ff5644c26c501f4437596ab" "/opt/rustwide/cargo-home/bin/cargo" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a746ff31c1787459010413a17add44934a3928260ff5644c26c501f4437596ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a746ff31c1787459010413a17add44934a3928260ff5644c26c501f4437596ab" "/opt/rustwide/cargo-home/bin/cargo" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking colorchoice v1.0.0
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[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling rustix v0.38.17
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[INFO] [stderr]     Checking bitflags v2.4.0
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[INFO] [stderr]     Checking clap_builder v4.4.6
[INFO] [stderr]     Checking aho-corasick v1.1.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking regex-automata v0.3.9
[INFO] [stderr]     Checking tempfile v3.8.0
[INFO] [stderr]     Checking regex v1.9.6
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]     Checking clap v4.4.6
[INFO] [stderr]     Checking pngme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `path::PathBuf` and `str::FromStr`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{str::FromStr, path::PathBuf};
[INFO] [stdout]   |           ^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]  --> src/args.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, path::PathBuf};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chunk_type`
[INFO] [stdout]  --> src/png.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Error, chunk_type};
[INFO] [stdout]   |                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::chunk_type::ChunkType`
[INFO] [stdout]  --> src/png.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::chunk_type::ChunkType;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chunk_from_strings`
[INFO] [stdout]  --> src/png.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::chunk::{Chunk, chunk_from_strings};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/png.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `path::PathBuf` and `str::FromStr`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{str::FromStr, path::PathBuf};
[INFO] [stdout]   |           ^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]  --> src/args.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, path::PathBuf};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]   --> src/commands.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     use std::path::PathBuf;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]   --> src/commands.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     use std::io;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chunk_type`
[INFO] [stdout]  --> src/png.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Error, chunk_type};
[INFO] [stdout]   |                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::chunk_type::ChunkType`
[INFO] [stdout]  --> src/png.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::chunk_type::ChunkType;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chunk_from_strings`
[INFO] [stdout]  --> src/png.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::chunk::{Chunk, chunk_from_strings};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/png.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/commands.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |         return Ok(())
[INFO] [stdout]    |         ------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 51 |     Ok(())
[INFO] [stdout]    |     ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/commands.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |         return Ok(())
[INFO] [stdout]    |         ------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 51 |     Ok(())
[INFO] [stdout]    |     ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fifth_bit`
[INFO] [stdout]    --> src/chunk_type.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let fifth_bit = (byte & (1 << 5)) >> 5;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fifth_bit`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `chunk_from_strings` is never used
[INFO] [stdout]    --> src/chunk.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn chunk_from_strings(chunk_type_input: &str, message: &str) -> Result<Chunk, Error> {
[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 `is_valid`, `is_critical`, `is_public`, `is_reserved_bit_valid`, and `is_safe_to_copy` are never used
[INFO] [stdout]    --> src/chunk_type.rs:74:12
[INFO] [stdout]     |
[INFO] [stdout]  69 | impl ChunkType {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  74 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     pub fn is_critical(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     pub fn is_public(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn is_reserved_bit_valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn is_safe_to_copy(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_fifth_bit` is never used
[INFO] [stdout]    --> src/chunk_type.rs:122:4
[INFO] [stdout]     |
[INFO] [stdout] 122 | fn check_fifth_bit(byte :&u8) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_png_struct` is never used
[INFO] [stdout]   --> src/commands.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub fn create_png_struct(file_path: PathBuf) -> Result<Png, Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_chunks` is never used
[INFO] [stdout]   --> src/png.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl Png {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn from_chunks(chunks: Vec<Chunk>) -> Png {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |             encode(&args);
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let _unused = encode(&args);
[INFO] [stdout]    |             +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |            decode(&args);
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]    |
[INFO] [stdout] 25 |            let _unused = decode(&args);
[INFO] [stdout]    |            +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |            remove(&args);
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]    |
[INFO] [stdout] 28 |            let _unused = remove(&args);
[INFO] [stdout]    |            +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 |           print(&args);
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]    |
[INFO] [stdout] 31 |           let _unused = print(&args);
[INFO] [stdout]    |           +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/commands.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         fs::write(output_file, png.as_bytes());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let _ = fs::write(output_file, png.as_bytes());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/commands.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         fs::write(&args.file_path, png.as_bytes());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let _ = fs::write(&args.file_path, png.as_bytes());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/commands.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fs::write(&args.file_path, png.as_bytes());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let _ = fs::write(&args.file_path, png.as_bytes());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]    --> src/png.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |     use std::str::FromStr;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fifth_bit`
[INFO] [stdout]    --> src/chunk_type.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let fifth_bit = (byte & (1 << 5)) >> 5;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fifth_bit`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `chunk_from_strings` is never used
[INFO] [stdout]    --> src/chunk.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn chunk_from_strings(chunk_type_input: &str, message: &str) -> Result<Chunk, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_png_struct` is never used
[INFO] [stdout]   --> src/commands.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub fn create_png_struct(file_path: PathBuf) -> Result<Png, Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_png` is never used
[INFO] [stdout]    --> src/commands.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn get_png() -> Png {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |             encode(&args);
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let _unused = encode(&args);
[INFO] [stdout]    |             +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |            decode(&args);
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]    |
[INFO] [stdout] 25 |            let _unused = decode(&args);
[INFO] [stdout]    |            +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |            remove(&args);
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]    |
[INFO] [stdout] 28 |            let _unused = remove(&args);
[INFO] [stdout]    |            +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 |           print(&args);
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]    |
[INFO] [stdout] 31 |           let _unused = print(&args);
[INFO] [stdout]    |           +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/commands.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         fs::write(output_file, png.as_bytes());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let _ = fs::write(output_file, png.as_bytes());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/commands.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         fs::write(&args.file_path, png.as_bytes());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let _ = fs::write(&args.file_path, png.as_bytes());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/commands.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fs::write(&args.file_path, png.as_bytes());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let _ = fs::write(&args.file_path, png.as_bytes());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/commands.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |         temp_file.write_all(&PNG_FILE);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let _ = temp_file.write_all(&PNG_FILE);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.57s
[INFO] running `Command { std: "docker" "inspect" "a746ff31c1787459010413a17add44934a3928260ff5644c26c501f4437596ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a746ff31c1787459010413a17add44934a3928260ff5644c26c501f4437596ab", kill_on_drop: false }`
[INFO] [stdout] a746ff31c1787459010413a17add44934a3928260ff5644c26c501f4437596ab
