[INFO] cloning repository https://github.com/VClone-bot/Sedfik-V-Blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VClone-bot/Sedfik-V-Blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVClone-bot%2FSedfik-V-Blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVClone-bot%2FSedfik-V-Blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c4b02696131ccc0abd9c79737ccb8f621e56bc5
[INFO] checking VClone-bot/Sedfik-V-Blockchain against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVClone-bot%2FSedfik-V-Blockchain" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VClone-bot/Sedfik-V-Blockchain on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/VClone-bot/Sedfik-V-Blockchain
[INFO] finished tweaking git repo https://github.com/VClone-bot/Sedfik-V-Blockchain
[INFO] tweaked toml for git repo https://github.com/VClone-bot/Sedfik-V-Blockchain written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/VClone-bot/Sedfik-V-Blockchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8f38155453859b9edd7f90373ff56a4b7b05fe64cb96a16f4e67b2a577d4010
[INFO] running `Command { std: "docker" "start" "-a" "c8f38155453859b9edd7f90373ff56a4b7b05fe64cb96a16f4e67b2a577d4010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8f38155453859b9edd7f90373ff56a4b7b05fe64cb96a16f4e67b2a577d4010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8f38155453859b9edd7f90373ff56a4b7b05fe64cb96a16f4e67b2a577d4010", kill_on_drop: false }`
[INFO] [stdout] c8f38155453859b9edd7f90373ff56a4b7b05fe64cb96a16f4e67b2a577d4010
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8727e7c402da72187fb9f27d4f6eb8742ab6011435e2fd301db8b21f00aef1b
[INFO] running `Command { std: "docker" "start" "-a" "f8727e7c402da72187fb9f27d4f6eb8742ab6011435e2fd301db8b21f00aef1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.83
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling merkle v1.11.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]     Checking bincode v1.3.2
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/miner.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sha512`
[INFO] [stdout]  --> src/miner.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sha2::{Sha256, Sha512, Digest};
[INFO] [stdout]   |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryFrom`
[INFO] [stdout]   --> src/miner.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::convert::TryFrom;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]   --> src/miner.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::sync::{Mutex, Arc};
[INFO] [stdout]    |                 ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::UpperHex`
[INFO] [stdout]  --> src/./block.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::UpperHex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bincode`
[INFO] [stdout]  --> src/./block.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bincode;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/./block.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |           /// Allows you to create a `Block` from a `String`
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 76 | /         let block: HashMap<String, String> = s.split(';')
[INFO] [stdout] 77 | |         .map(|kv| kv.split(':').collect::<Vec<&str>>())
[INFO] [stdout] 78 | |         .map(|vec| {
[INFO] [stdout] 79 | |             (vec[0].to_string(), vec[1].to_string())
[INFO] [stdout] 80 | |         })
[INFO] [stdout] 81 | |         .collect();
[INFO] [stdout]    | |___________________- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/./wallet.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]  --> src/./wallet.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::process::Command;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::block::Block`
[INFO] [stdout]  --> src/./wallet.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::block::Block;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/./block.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |           /// Allows you to create a `Block` from a `String`
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 76 | /         let block: HashMap<String, String> = s.split(';')
[INFO] [stdout] 77 | |         .map(|kv| kv.split(':').collect::<Vec<&str>>())
[INFO] [stdout] 78 | |         .map(|vec| {
[INFO] [stdout] 79 | |             (vec[0].to_string(), vec[1].to_string())
[INFO] [stdout] 80 | |         })
[INFO] [stdout] 81 | |         .collect();
[INFO] [stdout]    | |___________________- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/./wallet.rs:370:23
[INFO] [stdout]     |
[INFO] [stdout] 370 |                     if(!not_empty) {
[INFO] [stdout]     |                       ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/./wallet.rs:375:23
[INFO] [stdout]     |
[INFO] [stdout] 375 |                     if(i == 5) {
[INFO] [stdout]     |                       ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/miner.rs:846:9
[INFO] [stdout]     |
[INFO] [stdout] 846 |           /// Dead code, normaly upside code find hash before u64::max_value iteration.
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 847 | /         return block::Block{
[INFO] [stdout] 848 | |             index: index_, 
[INFO] [stdout] 849 | |             payload: payload_, 
[INFO] [stdout] 850 | |             timestamp: timestamp_, 
[INFO] [stdout] ...   |
[INFO] [stdout] 853 | |             hash: hash.as_bytes().to_vec()
[INFO] [stdout] 854 | |         };
[INFO] [stdout]     | |_________- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/./wallet.rs:370:23
[INFO] [stdout]     |
[INFO] [stdout] 370 |                     if(!not_empty) {
[INFO] [stdout]     |                       ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/miner.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sha512`
[INFO] [stdout]  --> src/miner.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sha2::{Sha256, Sha512, Digest};
[INFO] [stdout]   |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryFrom`
[INFO] [stdout]   --> src/miner.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::convert::TryFrom;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]   --> src/miner.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::sync::{Mutex, Arc};
[INFO] [stdout]    |                 ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::UpperHex`
[INFO] [stdout]  --> src/./block.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::UpperHex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bincode`
[INFO] [stdout]  --> src/./block.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bincode;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/./block.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |           /// Allows you to create a `Block` from a `String`
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 76 | /         let block: HashMap<String, String> = s.split(';')
[INFO] [stdout] 77 | |         .map(|kv| kv.split(':').collect::<Vec<&str>>())
[INFO] [stdout] 78 | |         .map(|vec| {
[INFO] [stdout] 79 | |             (vec[0].to_string(), vec[1].to_string())
[INFO] [stdout] 80 | |         })
[INFO] [stdout] 81 | |         .collect();
[INFO] [stdout]    | |___________________- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/./wallet.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]  --> src/./wallet.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::process::Command;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::block::Block`
[INFO] [stdout]  --> src/./wallet.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::block::Block;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/./block.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |           /// Allows you to create a `Block` from a `String`
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 76 | /         let block: HashMap<String, String> = s.split(';')
[INFO] [stdout] 77 | |         .map(|kv| kv.split(':').collect::<Vec<&str>>())
[INFO] [stdout] 78 | |         .map(|vec| {
[INFO] [stdout] 79 | |             (vec[0].to_string(), vec[1].to_string())
[INFO] [stdout] 80 | |         })
[INFO] [stdout] 81 | |         .collect();
[INFO] [stdout]    | |___________________- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/./wallet.rs:370:23
[INFO] [stdout]     |
[INFO] [stdout] 370 |                     if(!not_empty) {
[INFO] [stdout]     |                       ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/./wallet.rs:375:23
[INFO] [stdout]     |
[INFO] [stdout] 375 |                     if(i == 5) {
[INFO] [stdout]     |                       ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/miner.rs:846:9
[INFO] [stdout]     |
[INFO] [stdout] 846 |           /// Dead code, normaly upside code find hash before u64::max_value iteration.
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 847 | /         return block::Block{
[INFO] [stdout] 848 | |             index: index_, 
[INFO] [stdout] 849 | |             payload: payload_, 
[INFO] [stdout] 850 | |             timestamp: timestamp_, 
[INFO] [stdout] ...   |
[INFO] [stdout] 853 | |             hash: hash.as_bytes().to_vec()
[INFO] [stdout] 854 | |         };
[INFO] [stdout]     | |_________- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/./wallet.rs:370:23
[INFO] [stdout]     |
[INFO] [stdout] 370 |                     if(!not_empty) {
[INFO] [stdout]     |                       ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/./wallet.rs:225:17
[INFO] [stdout]     |
[INFO] [stdout] 225 |                 _ => { () }
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/./wallet.rs:225:17
[INFO] [stdout]     |
[INFO] [stdout] 225 |                 _ => { () }
[INFO] [stdout]     |                 ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/./wallet.rs:262:21
[INFO] [stdout]     |
[INFO] [stdout] 261 |                     True => resp = "Transaction is verified !".to_string(),
[INFO] [stdout]     |                     ---- matches any value
[INFO] [stdout] 262 |                     False => resp = "Transaction is not correct !".to_string(),
[INFO] [stdout]     |                     ^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text`
[INFO] [stdout]    --> src/miner.rs:435:21
[INFO] [stdout]     |
[INFO] [stdout] 435 |                 let text = &message[1..]; // get the remainder of the message
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `listener`
[INFO] [stdout]    --> src/./wallet.rs:238:21
[INFO] [stdout]     |
[INFO] [stdout] 238 |                 let listener = TcpListener::bind(&self.socket).unwrap();
[INFO] [stdout]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_listener`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `True`
[INFO] [stdout]    --> src/./wallet.rs:261:21
[INFO] [stdout]     |
[INFO] [stdout] 261 |                     True => resp = "Transaction is verified !".to_string(),
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_True`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `False`
[INFO] [stdout]    --> src/./wallet.rs:262:21
[INFO] [stdout]     |
[INFO] [stdout] 262 |                     False => resp = "Transaction is not correct !".to_string(),
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_False`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/./block.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn new (index: u32, payload: String, timestamp: u128, nonce: u64, prev_hash: Vec<u8>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/./block.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn new (index: u32, payload: String, timestamp: u128, nonce: u64, prev_hash: Vec<u8>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ok`
[INFO] [stdout]   --> src/./wallet.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Ok,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Connect`
[INFO] [stdout]   --> src/./wallet.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Connect, // flag to signal that a Miner joined the newtwork
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Disconnect`
[INFO] [stdout]   --> src/./wallet.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Disconnect, // flag to signal that a Miner disconnected from the network
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RequireID`
[INFO] [stdout]   --> src/./wallet.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     RequireID,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GiveID`
[INFO] [stdout]   --> src/./wallet.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     GiveID,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BroadcastConnect`
[INFO] [stdout]   --> src/./wallet.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     BroadcastConnect,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BroadcastDisconnect`
[INFO] [stdout]   --> src/./wallet.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     BroadcastDisconnect,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Check`
[INFO] [stdout]   --> src/./wallet.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Check,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ack`
[INFO] [stdout]   --> src/./wallet.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Ack,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Block`
[INFO] [stdout]   --> src/./wallet.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Block,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Transaction`
[INFO] [stdout]   --> src/./wallet.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Transaction,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MineTransaction`
[INFO] [stdout]   --> src/./wallet.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     MineTransaction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OkMineTransaction`
[INFO] [stdout]   --> src/./wallet.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     OkMineTransaction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RequireWalletID`
[INFO] [stdout]   --> src/./wallet.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     RequireWalletID,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RequireBlockchain`
[INFO] [stdout]   --> src/./wallet.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     RequireBlockchain,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SendBlockchain`
[INFO] [stdout]   --> src/./wallet.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     SendBlockchain,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_u8`
[INFO] [stdout]   --> src/./wallet.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn from_u8(value: u8) -> Flag {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Send`
[INFO] [stdout]   --> src/./wallet.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     Send,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Check`
[INFO] [stdout]   --> src/./wallet.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     Check,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Verify`
[INFO] [stdout]   --> src/./wallet.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     Verify,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Exit`
[INFO] [stdout]   --> src/./wallet.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     Exit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_string`
[INFO] [stdout]   --> src/./wallet.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn from_string(value: String) -> UserCommand {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `concat_u8`
[INFO] [stdout]    --> src/./wallet.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn concat_u8(first: &[u8], second: &[u8]) -> Vec<u8> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `encode_sockip`
[INFO] [stdout]    --> src/./wallet.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn encode_sockip(sockip: String) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode_sockip`
[INFO] [stdout]    --> src/./wallet.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn decode_sockip(sockip: String) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `encode_id`
[INFO] [stdout]    --> src/./wallet.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn encode_id(id: String) -> String {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode_id`
[INFO] [stdout]    --> src/./wallet.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub fn decode_id(message: String) -> String {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode_id_response`
[INFO] [stdout]    --> src/./wallet.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub fn decode_id_response(message: String) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `encode_message`
[INFO] [stdout]    --> src/./wallet.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub fn encode_message(flag : Flag, sockip : String, id : String, msg : String) -> Vec<u8>{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode_message`
[INFO] [stdout]    --> src/./wallet.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub fn decode_message(msg : &[u8]) -> (Flag, String, String, String){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_wallet`
[INFO] [stdout]    --> src/./wallet.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub fn create_wallet(socket: String, miner: String) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/./wallet.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 |     pub fn new(socket: String, miner: String, id: u32) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `listen_for_user_input`
[INFO] [stdout]    --> src/./wallet.rs:199:12
[INFO] [stdout]     |
[INFO] [stdout] 199 |     pub fn listen_for_user_input(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `handle_user_input`
[INFO] [stdout]    --> src/./wallet.rs:234:12
[INFO] [stdout]     |
[INFO] [stdout] 234 |     pub fn handle_user_input(&self, command: UserCommand, target: String, message: String) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `handle_message`
[INFO] [stdout]    --> src/./wallet.rs:272:12
[INFO] [stdout]     |
[INFO] [stdout] 272 |     pub fn handle_message(&self, mut stream: TcpStream) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `send_message`
[INFO] [stdout]    --> src/./wallet.rs:293:12
[INFO] [stdout]     |
[INFO] [stdout] 293 |     pub fn send_message(&self, destination: &String, message: &String, flag: Flag) -> Result<u8, &'static str> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `decode_block`
[INFO] [stdout]    --> src/./wallet.rs:318:12
[INFO] [stdout]     |
[INFO] [stdout] 318 |     pub fn decode_block(&self, encoded_block: String) -> block::Block {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `handle_blockchain`
[INFO] [stdout]    --> src/./wallet.rs:327:12
[INFO] [stdout]     |
[INFO] [stdout] 327 |     pub fn handle_blockchain(&self, mut stream: TcpStream, blocks: &mut Vec<block::Block>) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_blockchain_from_miner`
[INFO] [stdout]    --> src/./wallet.rs:347:12
[INFO] [stdout]     |
[INFO] [stdout] 347 |     pub fn get_blockchain_from_miner(&self) -> Vec<block::Block> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `verify_transaction`
[INFO] [stdout]    --> src/./wallet.rs:389:12
[INFO] [stdout]     |
[INFO] [stdout] 389 |     pub fn verify_transaction(&self, transaction: Vec<u8>) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `digest`
[INFO] [stdout]    --> src/./wallet.rs:397:9
[INFO] [stdout]     |
[INFO] [stdout] 397 |         static digest: &'static Algorithm = &ring::digest::SHA256;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `broadcast_threaded`
[INFO] [stdout]    --> src/miner.rs:375:12
[INFO] [stdout]     |
[INFO] [stdout] 375 |     pub fn broadcast_threaded(&self, message: &String) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ask_for_id`
[INFO] [stdout]    --> src/miner.rs:667:12
[INFO] [stdout]     |
[INFO] [stdout] 667 |     pub fn ask_for_id(socket: &String, destination: &String) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_block`
[INFO] [stdout]    --> src/miner.rs:773:12
[INFO] [stdout]     |
[INFO] [stdout] 773 |     pub fn check_block(&self, block: block::Block) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/miner.rs:380:13
[INFO] [stdout]     |
[INFO] [stdout] 380 | /             thread::scope(|s| {
[INFO] [stdout] 381 | |                 s.spawn(move |_| {
[INFO] [stdout] 382 | |                     // Connect to neighbor             
[INFO] [stdout] 383 | |                     match self.send_message(&neighbor_address, &message, Flag::Ok) {
[INFO] [stdout] ...   |
[INFO] [stdout] 387 | |                 });
[INFO] [stdout] 388 | |             });
[INFO] [stdout]     | |_______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/miner.rs:492:25
[INFO] [stdout]     |
[INFO] [stdout] 492 |                         self.send_message(&sender_sockip, &String::from(""), Flag::Ack);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:518:29
[INFO] [stdout]     |
[INFO] [stdout] 518 | ...                   &self.broadcast_to_network(&transaction, Flag::Transaction, sender_sockip.to_owned());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:532:33
[INFO] [stdout]     |
[INFO] [stdout] 532 | ...                   &self.blocks.push(block::Block::from_str(&mined_block.to_string()).unwrap());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:533:33
[INFO] [stdout]     |
[INFO] [stdout] 533 | ...                   &self.broadcast_to_network(&mined_block.to_string(), Flag::Block, sender_sockip.to_owned());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/miner.rs:599:29
[INFO] [stdout]     |
[INFO] [stdout] 599 | ...                   self.send_message(&sender_sockip, &block.to_string(), Flag::SendBlockchain);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:644:21
[INFO] [stdout]     |
[INFO] [stdout] 644 |                     &self.handle_client(stream);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:655:17
[INFO] [stdout]     |
[INFO] [stdout] 655 |                 &self.refresh_nodes_status();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:745:17
[INFO] [stdout]     |
[INFO] [stdout] 745 |                 &self.health_check(&addr, &id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:761:17
[INFO] [stdout]     |
[INFO] [stdout] 761 |                 &self.remove_from_network(*id, String::from(destination));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/./wallet.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |             stdin.read_line(&mut buffer);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `True` should have a snake case name
[INFO] [stdout]    --> src/./wallet.rs:261:21
[INFO] [stdout]     |
[INFO] [stdout] 261 |                     True => resp = "Transaction is verified !".to_string(),
[INFO] [stdout]     |                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] help: rename the identifier or convert it to a snake case raw identifier
[INFO] [stdout]     |
[INFO] [stdout] 261 |                     r#true => resp = "Transaction is verified !".to_string(),
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `False` should have a snake case name
[INFO] [stdout]    --> src/./wallet.rs:262:21
[INFO] [stdout]     |
[INFO] [stdout] 262 |                     False => resp = "Transaction is not correct !".to_string(),
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: rename the identifier or convert it to a snake case raw identifier
[INFO] [stdout]     |
[INFO] [stdout] 262 |                     r#false => resp = "Transaction is not correct !".to_string(),
[INFO] [stdout]     |                     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `digest` should have an upper case name
[INFO] [stdout]    --> src/./wallet.rs:397:16
[INFO] [stdout]     |
[INFO] [stdout] 397 |         static digest: &'static Algorithm = &ring::digest::SHA256;
[INFO] [stdout]     |                ^^^^^^ help: convert the identifier to upper case: `DIGEST`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `True` should have a snake case name
[INFO] [stdout]    --> src/./wallet.rs:261:21
[INFO] [stdout]     |
[INFO] [stdout] 261 |                     True => resp = "Transaction is verified !".to_string(),
[INFO] [stdout]     |                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: rename the identifier or convert it to a snake case raw identifier
[INFO] [stdout]     |
[INFO] [stdout] 261 |                     r#true => resp = "Transaction is verified !".to_string(),
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `digest` should have an upper case name
[INFO] [stdout]    --> src/./wallet.rs:397:16
[INFO] [stdout]     |
[INFO] [stdout] 397 |         static digest: &'static Algorithm = &ring::digest::SHA256;
[INFO] [stdout]     |                ^^^^^^ help: convert the identifier to upper case: `DIGEST`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 85 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/./wallet.rs:225:17
[INFO] [stdout]     |
[INFO] [stdout] 225 |                 _ => { () }
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/./wallet.rs:225:17
[INFO] [stdout]     |
[INFO] [stdout] 225 |                 _ => { () }
[INFO] [stdout]     |                 ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/./wallet.rs:262:21
[INFO] [stdout]     |
[INFO] [stdout] 261 |                     True => resp = "Transaction is verified !".to_string(),
[INFO] [stdout]     |                     ---- matches any value
[INFO] [stdout] 262 |                     False => resp = "Transaction is not correct !".to_string(),
[INFO] [stdout]     |                     ^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text`
[INFO] [stdout]    --> src/miner.rs:435:21
[INFO] [stdout]     |
[INFO] [stdout] 435 |                 let text = &message[1..]; // get the remainder of the message
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `listener`
[INFO] [stdout]    --> src/./wallet.rs:238:21
[INFO] [stdout]     |
[INFO] [stdout] 238 |                 let listener = TcpListener::bind(&self.socket).unwrap();
[INFO] [stdout]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_listener`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `True`
[INFO] [stdout]    --> src/./wallet.rs:261:21
[INFO] [stdout]     |
[INFO] [stdout] 261 |                     True => resp = "Transaction is verified !".to_string(),
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_True`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `False`
[INFO] [stdout]    --> src/./wallet.rs:262:21
[INFO] [stdout]     |
[INFO] [stdout] 262 |                     False => resp = "Transaction is not correct !".to_string(),
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_False`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/./block.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn new (index: u32, payload: String, timestamp: u128, nonce: u64, prev_hash: Vec<u8>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/./block.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn new (index: u32, payload: String, timestamp: u128, nonce: u64, prev_hash: Vec<u8>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ok`
[INFO] [stdout]   --> src/./wallet.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Ok,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Connect`
[INFO] [stdout]   --> src/./wallet.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Connect, // flag to signal that a Miner joined the newtwork
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Disconnect`
[INFO] [stdout]   --> src/./wallet.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Disconnect, // flag to signal that a Miner disconnected from the network
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RequireID`
[INFO] [stdout]   --> src/./wallet.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     RequireID,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GiveID`
[INFO] [stdout]   --> src/./wallet.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     GiveID,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BroadcastConnect`
[INFO] [stdout]   --> src/./wallet.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     BroadcastConnect,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BroadcastDisconnect`
[INFO] [stdout]   --> src/./wallet.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     BroadcastDisconnect,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Check`
[INFO] [stdout]   --> src/./wallet.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Check,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ack`
[INFO] [stdout]   --> src/./wallet.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Ack,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Block`
[INFO] [stdout]   --> src/./wallet.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Block,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Transaction`
[INFO] [stdout]   --> src/./wallet.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Transaction,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MineTransaction`
[INFO] [stdout]   --> src/./wallet.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     MineTransaction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OkMineTransaction`
[INFO] [stdout]   --> src/./wallet.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     OkMineTransaction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RequireWalletID`
[INFO] [stdout]   --> src/./wallet.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     RequireWalletID,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RequireBlockchain`
[INFO] [stdout]   --> src/./wallet.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     RequireBlockchain,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SendBlockchain`
[INFO] [stdout]   --> src/./wallet.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     SendBlockchain,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_u8`
[INFO] [stdout]   --> src/./wallet.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn from_u8(value: u8) -> Flag {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Send`
[INFO] [stdout]   --> src/./wallet.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     Send,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Check`
[INFO] [stdout]   --> src/./wallet.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     Check,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Verify`
[INFO] [stdout]   --> src/./wallet.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     Verify,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Exit`
[INFO] [stdout]   --> src/./wallet.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     Exit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_string`
[INFO] [stdout]   --> src/./wallet.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn from_string(value: String) -> UserCommand {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `concat_u8`
[INFO] [stdout]    --> src/./wallet.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn concat_u8(first: &[u8], second: &[u8]) -> Vec<u8> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `encode_sockip`
[INFO] [stdout]    --> src/./wallet.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn encode_sockip(sockip: String) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode_sockip`
[INFO] [stdout]    --> src/./wallet.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn decode_sockip(sockip: String) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `encode_id`
[INFO] [stdout]    --> src/./wallet.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn encode_id(id: String) -> String {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode_id`
[INFO] [stdout]    --> src/./wallet.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub fn decode_id(message: String) -> String {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode_id_response`
[INFO] [stdout]    --> src/./wallet.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub fn decode_id_response(message: String) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `encode_message`
[INFO] [stdout]    --> src/./wallet.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub fn encode_message(flag : Flag, sockip : String, id : String, msg : String) -> Vec<u8>{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode_message`
[INFO] [stdout]    --> src/./wallet.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub fn decode_message(msg : &[u8]) -> (Flag, String, String, String){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_wallet`
[INFO] [stdout]    --> src/./wallet.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub fn create_wallet(socket: String, miner: String) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/./wallet.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 |     pub fn new(socket: String, miner: String, id: u32) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `listen_for_user_input`
[INFO] [stdout]    --> src/./wallet.rs:199:12
[INFO] [stdout]     |
[INFO] [stdout] 199 |     pub fn listen_for_user_input(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `handle_user_input`
[INFO] [stdout]    --> src/./wallet.rs:234:12
[INFO] [stdout]     |
[INFO] [stdout] 234 |     pub fn handle_user_input(&self, command: UserCommand, target: String, message: String) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `handle_message`
[INFO] [stdout]    --> src/./wallet.rs:272:12
[INFO] [stdout]     |
[INFO] [stdout] 272 |     pub fn handle_message(&self, mut stream: TcpStream) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `send_message`
[INFO] [stdout]    --> src/./wallet.rs:293:12
[INFO] [stdout]     |
[INFO] [stdout] 293 |     pub fn send_message(&self, destination: &String, message: &String, flag: Flag) -> Result<u8, &'static str> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `decode_block`
[INFO] [stdout]    --> src/./wallet.rs:318:12
[INFO] [stdout]     |
[INFO] [stdout] 318 |     pub fn decode_block(&self, encoded_block: String) -> block::Block {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `handle_blockchain`
[INFO] [stdout]    --> src/./wallet.rs:327:12
[INFO] [stdout]     |
[INFO] [stdout] 327 |     pub fn handle_blockchain(&self, mut stream: TcpStream, blocks: &mut Vec<block::Block>) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_blockchain_from_miner`
[INFO] [stdout]    --> src/./wallet.rs:347:12
[INFO] [stdout]     |
[INFO] [stdout] 347 |     pub fn get_blockchain_from_miner(&self) -> Vec<block::Block> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `verify_transaction`
[INFO] [stdout]    --> src/./wallet.rs:389:12
[INFO] [stdout]     |
[INFO] [stdout] 389 |     pub fn verify_transaction(&self, transaction: Vec<u8>) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `digest`
[INFO] [stdout]    --> src/./wallet.rs:397:9
[INFO] [stdout]     |
[INFO] [stdout] 397 |         static digest: &'static Algorithm = &ring::digest::SHA256;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `broadcast_threaded`
[INFO] [stdout]    --> src/miner.rs:375:12
[INFO] [stdout]     |
[INFO] [stdout] 375 |     pub fn broadcast_threaded(&self, message: &String) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ask_for_id`
[INFO] [stdout]    --> src/miner.rs:667:12
[INFO] [stdout]     |
[INFO] [stdout] 667 |     pub fn ask_for_id(socket: &String, destination: &String) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_block`
[INFO] [stdout]    --> src/miner.rs:773:12
[INFO] [stdout]     |
[INFO] [stdout] 773 |     pub fn check_block(&self, block: block::Block) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/miner.rs:380:13
[INFO] [stdout]     |
[INFO] [stdout] 380 | /             thread::scope(|s| {
[INFO] [stdout] 381 | |                 s.spawn(move |_| {
[INFO] [stdout] 382 | |                     // Connect to neighbor             
[INFO] [stdout] 383 | |                     match self.send_message(&neighbor_address, &message, Flag::Ok) {
[INFO] [stdout] ...   |
[INFO] [stdout] 387 | |                 });
[INFO] [stdout] 388 | |             });
[INFO] [stdout]     | |_______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/miner.rs:492:25
[INFO] [stdout]     |
[INFO] [stdout] 492 |                         self.send_message(&sender_sockip, &String::from(""), Flag::Ack);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:518:29
[INFO] [stdout]     |
[INFO] [stdout] 518 | ...                   &self.broadcast_to_network(&transaction, Flag::Transaction, sender_sockip.to_owned());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:532:33
[INFO] [stdout]     |
[INFO] [stdout] 532 | ...                   &self.blocks.push(block::Block::from_str(&mined_block.to_string()).unwrap());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:533:33
[INFO] [stdout]     |
[INFO] [stdout] 533 | ...                   &self.broadcast_to_network(&mined_block.to_string(), Flag::Block, sender_sockip.to_owned());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/miner.rs:599:29
[INFO] [stdout]     |
[INFO] [stdout] 599 | ...                   self.send_message(&sender_sockip, &block.to_string(), Flag::SendBlockchain);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:644:21
[INFO] [stdout]     |
[INFO] [stdout] 644 |                     &self.handle_client(stream);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:655:17
[INFO] [stdout]     |
[INFO] [stdout] 655 |                 &self.refresh_nodes_status();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:745:17
[INFO] [stdout]     |
[INFO] [stdout] 745 |                 &self.health_check(&addr, &id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/miner.rs:761:17
[INFO] [stdout]     |
[INFO] [stdout] 761 |                 &self.remove_from_network(*id, String::from(destination));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/./wallet.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |             stdin.read_line(&mut buffer);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `True` should have a snake case name
[INFO] [stdout]    --> src/./wallet.rs:261:21
[INFO] [stdout]     |
[INFO] [stdout] 261 |                     True => resp = "Transaction is verified !".to_string(),
[INFO] [stdout]     |                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] help: rename the identifier or convert it to a snake case raw identifier
[INFO] [stdout]     |
[INFO] [stdout] 261 |                     r#true => resp = "Transaction is verified !".to_string(),
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `False` should have a snake case name
[INFO] [stdout]    --> src/./wallet.rs:262:21
[INFO] [stdout]     |
[INFO] [stdout] 262 |                     False => resp = "Transaction is not correct !".to_string(),
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: rename the identifier or convert it to a snake case raw identifier
[INFO] [stdout]     |
[INFO] [stdout] 262 |                     r#false => resp = "Transaction is not correct !".to_string(),
[INFO] [stdout]     |                     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `digest` should have an upper case name
[INFO] [stdout]    --> src/./wallet.rs:397:16
[INFO] [stdout]     |
[INFO] [stdout] 397 |         static digest: &'static Algorithm = &ring::digest::SHA256;
[INFO] [stdout]     |                ^^^^^^ help: convert the identifier to upper case: `DIGEST`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `True` should have a snake case name
[INFO] [stdout]    --> src/./wallet.rs:261:21
[INFO] [stdout]     |
[INFO] [stdout] 261 |                     True => resp = "Transaction is verified !".to_string(),
[INFO] [stdout]     |                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: rename the identifier or convert it to a snake case raw identifier
[INFO] [stdout]     |
[INFO] [stdout] 261 |                     r#true => resp = "Transaction is verified !".to_string(),
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `digest` should have an upper case name
[INFO] [stdout]    --> src/./wallet.rs:397:16
[INFO] [stdout]     |
[INFO] [stdout] 397 |         static digest: &'static Algorithm = &ring::digest::SHA256;
[INFO] [stdout]     |                ^^^^^^ help: convert the identifier to upper case: `DIGEST`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 85 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.06s
[INFO] running `Command { std: "docker" "inspect" "f8727e7c402da72187fb9f27d4f6eb8742ab6011435e2fd301db8b21f00aef1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8727e7c402da72187fb9f27d4f6eb8742ab6011435e2fd301db8b21f00aef1b", kill_on_drop: false }`
[INFO] [stdout] f8727e7c402da72187fb9f27d4f6eb8742ab6011435e2fd301db8b21f00aef1b