[INFO] cloning repository https://github.com/p-kraszewski/sekurak_hex_gynvael
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/p-kraszewski/sekurak_hex_gynvael" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp-kraszewski%2Fsekurak_hex_gynvael", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp-kraszewski%2Fsekurak_hex_gynvael'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1031e0c0fffc82e4e41422e66fa3290584cc6c7
[INFO] checking p-kraszewski/sekurak_hex_gynvael against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp-kraszewski%2Fsekurak_hex_gynvael" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/p-kraszewski/sekurak_hex_gynvael
[INFO] finished tweaking git repo https://github.com/p-kraszewski/sekurak_hex_gynvael
[INFO] tweaked toml for git repo https://github.com/p-kraszewski/sekurak_hex_gynvael written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/p-kraszewski/sekurak_hex_gynvael on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/p-kraszewski/sekurak_hex_gynvael 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e1a4eb178c34231b81e108a4ad4d72721c823aeb82620d76e9be4196ddaa392
[INFO] running `Command { std: "docker" "start" "-a" "5e1a4eb178c34231b81e108a4ad4d72721c823aeb82620d76e9be4196ddaa392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e1a4eb178c34231b81e108a4ad4d72721c823aeb82620d76e9be4196ddaa392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e1a4eb178c34231b81e108a4ad4d72721c823aeb82620d76e9be4196ddaa392", kill_on_drop: false }`
[INFO] [stdout] 5e1a4eb178c34231b81e108a4ad4d72721c823aeb82620d76e9be4196ddaa392
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f54193f69e4b4b27498096d36368eb8272bd4148f70134c712d204289fd4a43e
[INFO] running `Command { std: "docker" "start" "-a" "f54193f69e4b4b27498096d36368eb8272bd4148f70134c712d204289fd4a43e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling hashbrown v0.14.1
[INFO] [stderr]    Compiling rustix v0.38.15
[INFO] [stderr]    Compiling winnow v0.5.15
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking sharded-slab v0.1.6
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking aho-corasick v1.1.1
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking anstyle-parse v0.2.2
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking linux-raw-sys v0.4.8
[INFO] [stderr]     Checking anstream v0.6.4
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking object v0.32.1
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking termcolor v1.3.0
[INFO] [stderr]     Checking flate2 v1.0.27
[INFO] [stderr]     Checking clap_builder v4.4.6
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling indexmap v2.0.2
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking normalize-path v0.2.1
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking regex-automata v0.3.9
[INFO] [stderr]     Checking num-bigint v0.4.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking regex v1.9.6
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]    Compiling num_enum_derive v0.7.0
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]     Checking num_enum v0.7.0
[INFO] [stderr]     Checking clap v4.4.6
[INFO] [stderr]     Checking sekurak_hex_gynvael v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `eyre::WrapErr`
[INFO] [stdout]  --> src/image_codec/raw.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use eyre::WrapErr;
[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: `error`
[INFO] [stdout]  --> src/unzip.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{debug, error};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `eyre::WrapErr`
[INFO] [stdout]  --> src/image_codec/raw.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use eyre::WrapErr;
[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: `error`
[INFO] [stdout]  --> src/unzip.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{debug, error};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/image_codec/bmp.rs:184:13
[INFO] [stdout]     |
[INFO] [stdout] 184 |         for y in 0..ys {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc32`
[INFO] [stdout]    --> src/unzip.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let crc32 = sf.read_u32le().wrap_err("can't read crc-32")?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extra`
[INFO] [stdout]    --> src/unzip.rs:237:13
[INFO] [stdout]     |
[INFO] [stdout] 237 |         let extra = if extra_len > 0 {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_extra`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `size_of_central_directory` and `comment` are never read
[INFO] [stdout]   --> src/unzip.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct EndOfCentralDirectory {
[INFO] [stdout]    |            --------------------- fields in this struct
[INFO] [stdout] 23 |     central_directory_entries: u16,
[INFO] [stdout] 24 |     size_of_central_directory: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 25 |     offset_of_central_directory: u32,
[INFO] [stdout] 26 |     comment: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EndOfCentralDirectory` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `crc32`, `comp_size`, `uncomp_size`, `extra`, and `comment` are never read
[INFO] [stdout]   --> src/unzip.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct CentralDirectoryEntry {
[INFO] [stdout]    |            --------------------- fields in this struct
[INFO] [stdout] 31 |     crc32: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 32 |     comp_size: u32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 33 |     uncomp_size: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     extra: Option<Vec<u8>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 37 |     comment: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CentralDirectoryEntry` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `LE` should have a snake case name
[INFO] [stdout]    --> src/files.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub mod LE {
[INFO] [stdout]     |         ^^ help: convert the identifier to snake case: `le`
[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 `BE` should have a snake case name
[INFO] [stdout]    --> src/files.rs:207:9
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub mod BE {
[INFO] [stdout]     |         ^^ help: convert the identifier to snake case: `be`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/image_codec/bmp.rs:184:13
[INFO] [stdout]     |
[INFO] [stdout] 184 |         for y in 0..ys {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc32`
[INFO] [stdout]    --> src/unzip.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let crc32 = sf.read_u32le().wrap_err("can't read crc-32")?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extra`
[INFO] [stdout]    --> src/unzip.rs:237:13
[INFO] [stdout]     |
[INFO] [stdout] 237 |         let extra = if extra_len > 0 {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_extra`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `size_of_central_directory` and `comment` are never read
[INFO] [stdout]   --> src/unzip.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct EndOfCentralDirectory {
[INFO] [stdout]    |            --------------------- fields in this struct
[INFO] [stdout] 23 |     central_directory_entries: u16,
[INFO] [stdout] 24 |     size_of_central_directory: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 25 |     offset_of_central_directory: u32,
[INFO] [stdout] 26 |     comment: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EndOfCentralDirectory` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `crc32`, `comp_size`, `uncomp_size`, `extra`, and `comment` are never read
[INFO] [stdout]   --> src/unzip.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct CentralDirectoryEntry {
[INFO] [stdout]    |            --------------------- fields in this struct
[INFO] [stdout] 31 |     crc32: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 32 |     comp_size: u32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 33 |     uncomp_size: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     extra: Option<Vec<u8>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 37 |     comment: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CentralDirectoryEntry` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `LE` should have a snake case name
[INFO] [stdout]    --> src/files.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub mod LE {
[INFO] [stdout]     |         ^^ help: convert the identifier to snake case: `le`
[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 `BE` should have a snake case name
[INFO] [stdout]    --> src/files.rs:207:9
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub mod BE {
[INFO] [stdout]     |         ^^ help: convert the identifier to snake case: `be`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RngCore` and `Rng`
[INFO] [stdout]  --> examples/d5_04_simple_parser.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{Rng, RngCore};
[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: `env_logger::Env`
[INFO] [stdout]  --> examples/d5_02_mutator.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use env_logger::Env;
[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: `log::debug`
[INFO] [stdout]  --> examples/d5_02_mutator.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::debug;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sekurak_hex_gynvael::image_codec as ic`
[INFO] [stdout]   --> examples/d5_02_mutator.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use sekurak_hex_gynvael::image_codec as ic;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]  --> src/bin/bmp2raw.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{debug, error};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> examples/d5_04_simple_parser.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut rng = rand::thread_rng();
[INFO] [stdout]   |         ----^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]  --> examples/d5_04_simple_parser.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut rng = rand::thread_rng();
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]  --> src/bin/bmp2raw.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{debug, error};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/d5_02_mutator.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     for mut d in data.chunks_mut(256) {
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.15s
[INFO] running `Command { std: "docker" "inspect" "f54193f69e4b4b27498096d36368eb8272bd4148f70134c712d204289fd4a43e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f54193f69e4b4b27498096d36368eb8272bd4148f70134c712d204289fd4a43e", kill_on_drop: false }`
[INFO] [stdout] f54193f69e4b4b27498096d36368eb8272bd4148f70134c712d204289fd4a43e
