[INFO] cloning repository https://github.com/somthn0somthn/moonmath
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/somthn0somthn/moonmath" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsomthn0somthn%2Fmoonmath", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsomthn0somthn%2Fmoonmath'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ba2f5ec3a52530b45bbb5822e44385279932b69
[INFO] checking somthn0somthn/moonmath against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsomthn0somthn%2Fmoonmath" "/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/somthn0somthn/moonmath
[INFO] finished tweaking git repo https://github.com/somthn0somthn/moonmath
[INFO] tweaked toml for git repo https://github.com/somthn0somthn/moonmath written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/somthn0somthn/moonmath on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/somthn0somthn/moonmath 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2024 which implies `resolver = "3"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2024 resolver, specify `workspace.resolver = "3"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log2 v0.2.1
[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_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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b758ecbd76bbb7cf6d1dd01e51f87ad64c02163405d248144382cc8f155e365
[INFO] running `Command { std: "docker" "start" "-a" "8b758ecbd76bbb7cf6d1dd01e51f87ad64c02163405d248144382cc8f155e365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b758ecbd76bbb7cf6d1dd01e51f87ad64c02163405d248144382cc8f155e365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b758ecbd76bbb7cf6d1dd01e51f87ad64c02163405d248144382cc8f155e365", kill_on_drop: false }`
[INFO] [stdout] 8b758ecbd76bbb7cf6d1dd01e51f87ad64c02163405d248144382cc8f155e365
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df1bcaffb95388128220fc0d6bb639e6dd9356698841953be5e64832563f402e
[INFO] running `Command { std: "docker" "start" "-a" "df1bcaffb95388128220fc0d6bb639e6dd9356698841953be5e64832563f402e", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2024 which implies `resolver = "3"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2024 resolver, specify `workspace.resolver = "3"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking poly v0.1.0 (/opt/rustwide/workdir/ch_3/poly)
[INFO] [stderr]     Checking pr_38 v0.1.0 (/opt/rustwide/workdir/ch_4/pr_38)
[INFO] [stderr]     Checking pr_3_2_2_6 v0.1.0 (/opt/rustwide/workdir/ch_3/pr_3_2_2_6)
[INFO] [stderr]     Checking pr_3_2_2_7 v0.1.0 (/opt/rustwide/workdir/ch_3/pr_3_2_2_7)
[INFO] [stderr]     Checking sum_mul v0.1.0 (/opt/rustwide/workdir/ch_4/sum_mul)
[INFO] [stderr]     Checking crt v0.1.0 (/opt/rustwide/workdir/ch_3/crt)
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking miniz_oxide v0.8.8
[INFO] [stderr]     Checking colored v2.2.0
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> ch_3/pr_3_2_2_6/src/lib.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut dividend_array = num_to_array(dividend);
[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: variable does not need to be mutable
[INFO] [stdout]   --> ch_3/pr_3_2_2_6/src/lib.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut dividend_array = num_to_array(dividend);
[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]     Checking try_inc v0.1.0 (/opt/rustwide/workdir/ch_4/try_inc)
[INFO] [stderr]     Checking flate2 v1.1.1
[INFO] [stdout] warning: function `try_inc` is never used
[INFO] [stdout]  --> ch_4/try_inc/src/lib.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn try_inc(n: u32, s: String) -> u32 {
[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 `try_inc` is never used
[INFO] [stdout]  --> ch_4/try_inc/src/lib.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn try_inc(n: u32, s: String) -> u32 {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking log2 v0.2.1
[INFO] [stderr]     Checking bin_sidequest v0.1.0 (/opt/rustwide/workdir/ch_4/bin_sidequest)
[INFO] [stdout] warning: unused import: `log2::*`
[INFO] [stdout]  --> ch_4/bin_sidequest/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log2::*;
[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: `log2::*`
[INFO] [stdout]  --> ch_4/bin_sidequest/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log2::*;
[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 variable: `b`
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:140:76
[INFO] [stdout]     |
[INFO] [stdout] 140 |     hash[0..8].iter().enumerate().filter(|(_, b)| **b == pattern).map(|(i, b)| i).collect()
[INFO] [stdout]     |                                                                            ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_bit` is never used
[INFO] [stdout]  --> ch_4/bin_sidequest/src/main.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn get_bit(num: u8, position: u8) -> u8 {
[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 `set_bit` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn set_bit(num: u8, position: u8) -> u8 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `byte_to_bits` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn byte_to_bits(byte: u8) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_pattern` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn count_pattern(data: &str) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `string_to_all_bits` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn string_to_all_bits(s: &str) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bits_to_bytes` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn bits_to_bytes(bits: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_prefix` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn hash_prefix(input: &str) -> [u8; 4] {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_to_bits` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn hash_to_bits(input: &str) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_with_counter` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn hash_with_counter(base: &str, counter: u32) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bits_to_decimal` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:95:4
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn bits_to_decimal(bits: &[u8]) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `weighted_sum` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn weighted_sum(bytes: &[u8]) -> u128 {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fits_in_k_bits` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:114:4
[INFO] [stdout]     |
[INFO] [stdout] 114 | fn fits_in_k_bits(num: u128, k: u32) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_power_pairs` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn create_power_pairs(value: Vec<u8>) -> Vec<(usize, u128)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_first_match` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn find_first_match(data: Vec<u8>, target: u8) -> Option<usize> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_bytes` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn process_bytes(bytes: Vec<u8>) -> Vec<u16> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_pattern_indices` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:136:5
[INFO] [stdout]     |
[INFO] [stdout] 136 | fn  find_pattern_indices(input: &str, pattern: u8) -> Vec<usize> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_get_bit` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:143:4
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn safe_get_bit(num: u8, position: u8) -> Result<u8, &'static str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_power_of_2` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn safe_power_of_2(exp: u32) -> Option<u128> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_weighted_sum` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn safe_weighted_sum(bytes: &[u8]) -> Result<u128, &'static str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:140:76
[INFO] [stdout]     |
[INFO] [stdout] 140 |     hash[0..8].iter().enumerate().filter(|(_, b)| **b == pattern).map(|(i, b)| i).collect()
[INFO] [stdout]     |                                                                            ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_bit` is never used
[INFO] [stdout]  --> ch_4/bin_sidequest/src/main.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn get_bit(num: u8, position: u8) -> u8 {
[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 `set_bit` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn set_bit(num: u8, position: u8) -> u8 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `byte_to_bits` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn byte_to_bits(byte: u8) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_pattern` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn count_pattern(data: &str) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `string_to_all_bits` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn string_to_all_bits(s: &str) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bits_to_bytes` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn bits_to_bytes(bits: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_prefix` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn hash_prefix(input: &str) -> [u8; 4] {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_to_bits` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn hash_to_bits(input: &str) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_with_counter` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn hash_with_counter(base: &str, counter: u32) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bits_to_decimal` is never used
[INFO] [stdout]   --> ch_4/bin_sidequest/src/main.rs:95:4
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn bits_to_decimal(bits: &[u8]) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `weighted_sum` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn weighted_sum(bytes: &[u8]) -> u128 {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fits_in_k_bits` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:114:4
[INFO] [stdout]     |
[INFO] [stdout] 114 | fn fits_in_k_bits(num: u128, k: u32) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_power_pairs` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn create_power_pairs(value: Vec<u8>) -> Vec<(usize, u128)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_first_match` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn find_first_match(data: Vec<u8>, target: u8) -> Option<usize> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_bytes` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn process_bytes(bytes: Vec<u8>) -> Vec<u16> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_pattern_indices` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:136:5
[INFO] [stdout]     |
[INFO] [stdout] 136 | fn  find_pattern_indices(input: &str, pattern: u8) -> Vec<usize> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_get_bit` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:143:4
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn safe_get_bit(num: u8, position: u8) -> Result<u8, &'static str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_power_of_2` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn safe_power_of_2(exp: u32) -> Option<u128> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_weighted_sum` is never used
[INFO] [stdout]    --> ch_4/bin_sidequest/src/main.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn safe_weighted_sum(bytes: &[u8]) -> Result<u128, &'static str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.53s
[INFO] running `Command { std: "docker" "inspect" "df1bcaffb95388128220fc0d6bb639e6dd9356698841953be5e64832563f402e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df1bcaffb95388128220fc0d6bb639e6dd9356698841953be5e64832563f402e", kill_on_drop: false }`
[INFO] [stdout] df1bcaffb95388128220fc0d6bb639e6dd9356698841953be5e64832563f402e
