[INFO] cloning repository https://github.com/KonZoX/BlockChainProject
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KonZoX/BlockChainProject" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKonZoX%2FBlockChainProject", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKonZoX%2FBlockChainProject'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 613af3c4a681e52d70cf527dc825ce56c985f277
[INFO] checking KonZoX/BlockChainProject against try#f77b5bc6c7c84df104f86b0dd01d9490e3923fa8 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKonZoX%2FBlockChainProject" "/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/KonZoX/BlockChainProject
[INFO] finished tweaking git repo https://github.com/KonZoX/BlockChainProject
[INFO] tweaked toml for git repo https://github.com/KonZoX/BlockChainProject written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KonZoX/BlockChainProject on toolchain f77b5bc6c7c84df104f86b0dd01d9490e3923fa8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KonZoX/BlockChainProject 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" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking KonZoX/BlockChainProject against try#f77b5bc6c7c84df104f86b0dd01d9490e3923fa8 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKonZoX%2FBlockChainProject" "/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/KonZoX/BlockChainProject
[INFO] finished tweaking git repo https://github.com/KonZoX/BlockChainProject
[INFO] tweaked toml for git repo https://github.com/KonZoX/BlockChainProject written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KonZoX/BlockChainProject on toolchain f77b5bc6c7c84df104f86b0dd01d9490e3923fa8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KonZoX/BlockChainProject 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" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] 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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc9bf0fdcc300f5004e86059cb5448b787cb3ec442290dd81a1d06b6b4bb83eb
[INFO] running `Command { std: "docker" "start" "-a" "cc9bf0fdcc300f5004e86059cb5448b787cb3ec442290dd81a1d06b6b4bb83eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc9bf0fdcc300f5004e86059cb5448b787cb3ec442290dd81a1d06b6b4bb83eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc9bf0fdcc300f5004e86059cb5448b787cb3ec442290dd81a1d06b6b4bb83eb", kill_on_drop: false }`
[INFO] [stdout] cc9bf0fdcc300f5004e86059cb5448b787cb3ec442290dd81a1d06b6b4bb83eb
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c59939abc6f010c97d1527c9fccb03d4741d82810a484e211cd0272f99e25e75
[INFO] running `Command { std: "docker" "start" "-a" "c59939abc6f010c97d1527c9fccb03d4741d82810a484e211cd0272f99e25e75", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling cc v1.2.25
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]    Compiling rustls v0.23.27
[INFO] [stderr]     Checking webpki-roots v1.0.0
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]     Checking flate2 v1.1.1
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking webpki-roots v0.26.11
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling curve25519-dalek-derive v0.1.1
[INFO] [stderr]     Checking rustls-webpki v0.103.3
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]     Checking zerovec v0.11.2
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]     Checking tinystr v0.8.1
[INFO] [stderr]     Checking potential_utf v0.1.2
[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking icu_locale_core v2.0.0
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking icu_properties v2.0.1
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking ureq v2.12.1
[INFO] [stderr]     Checking ed25519 v2.2.3
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking ed25519-dalek v2.1.1
[INFO] [stderr]     Checking BlockChainProject v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serialize_into`
[INFO] [stdout]  --> src/components/blockchain.rs:4:37
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use bincode::{deserialize_from, serialize_into};
[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 imports: `Error` and `serialize_into`
[INFO] [stdout]    --> src/components/blockchain.rs:161:19
[INFO] [stdout]     |
[INFO] [stdout] 161 |     use bincode::{Error, deserialize_from, serialize_into};
[INFO] [stdout]     |                   ^^^^^                    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SigningKey`
[INFO] [stdout]   --> src/components/payment.rs:39:44
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use ed25519_dalek::{Signature, Signer, SigningKey, VerifyingKey};
[INFO] [stdout]    |                                            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sha2::digest::typenum::Pow`
[INFO] [stdout]   --> src/components/payment.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     use sha2::digest::typenum::Pow;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/network/p2p.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `Write`, and `prelude`
[INFO] [stdout]  --> src/network/p2p.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Write, prelude};
[INFO] [stdout]   |               ^^^^^^^             ^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/network/p2p.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serialize_into`
[INFO] [stdout]  --> src/components/blockchain.rs:4:37
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use bincode::{deserialize_from, serialize_into};
[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: `self`
[INFO] [stdout]   --> src/network/peer.rs:11:48
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::components::payment::transactions::{self, Transaction};
[INFO] [stdout]    |                                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error` and `serialize_into`
[INFO] [stdout]    --> src/components/blockchain.rs:161:19
[INFO] [stdout]     |
[INFO] [stdout] 161 |     use bincode::{Error, deserialize_from, serialize_into};
[INFO] [stdout]     |                   ^^^^^                    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SigningKey`
[INFO] [stdout]   --> src/components/payment.rs:39:44
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use ed25519_dalek::{Signature, Signer, SigningKey, VerifyingKey};
[INFO] [stdout]    |                                            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sha2::digest::typenum::Pow`
[INFO] [stdout]   --> src/components/payment.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     use sha2::digest::typenum::Pow;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/network/p2p.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `Write`, and `prelude`
[INFO] [stdout]  --> src/network/p2p.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Write, prelude};
[INFO] [stdout]   |               ^^^^^^^             ^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/network/p2p.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/network/peer.rs:11:48
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::components::payment::transactions::{self, Transaction};
[INFO] [stdout]    |                                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Signer`
[INFO] [stdout]   --> src/components/payment.rs:39:36
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use ed25519_dalek::{Signature, Signer, SigningKey, VerifyingKey};
[INFO] [stdout]    |                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Signer`
[INFO] [stdout]   --> src/components/payment.rs:39:36
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use ed25519_dalek::{Signature, Signer, SigningKey, VerifyingKey};
[INFO] [stdout]    |                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nonce`
[INFO] [stdout]    --> src/components/blockchain.rs:208:37
[INFO] [stdout]     |
[INFO] [stdout] 208 |             let Block { data, hash, nonce } = self.last_block();
[INFO] [stdout]     |                                     ^^^^^ help: try ignoring the field: `nonce: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nonce`
[INFO] [stdout]    --> src/components/blockchain.rs:216:37
[INFO] [stdout]     |
[INFO] [stdout] 216 |             let Block { data, hash, nonce } = self.last_block();
[INFO] [stdout]     |                                     ^^^^^ help: try ignoring the field: `nonce: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nonce`
[INFO] [stdout]    --> src/components/blockchain.rs:208:37
[INFO] [stdout]     |
[INFO] [stdout] 208 |             let Block { data, hash, nonce } = self.last_block();
[INFO] [stdout]     |                                     ^^^^^ help: try ignoring the field: `nonce: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nonce`
[INFO] [stdout]    --> src/components/blockchain.rs:216:37
[INFO] [stdout]     |
[INFO] [stdout] 216 |             let Block { data, hash, nonce } = self.last_block();
[INFO] [stdout]     |                                     ^^^^^ help: try ignoring the field: `nonce: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/components/blockchain.rs:302:17
[INFO] [stdout]     |
[INFO] [stdout] 302 |             let mut fo = File::open(path)?;
[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]    --> src/components/blockchain.rs:302:17
[INFO] [stdout]     |
[INFO] [stdout] 302 |             let mut fo = File::open(path)?;
[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]   --> src/network/p2p.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn handle_connection(mut stream: TcpStream) -> Result<Envelope, bincode::Error> {
[INFO] [stdout]    |                          ----^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/network/p2p.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn handle_connection(mut stream: TcpStream) -> Result<Envelope, bincode::Error> {
[INFO] [stdout]    |                          ----^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]   --> src/network/peer.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         status: ConnectionStatus,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `direction`
[INFO] [stdout]   --> src/network/peer.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         direction: ConnectionDirection,
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_direction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inbox`
[INFO] [stdout]   --> src/network/peer.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         inbox: VecDeque<Message>,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_inbox`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]   --> src/network/peer.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         status: ConnectionStatus,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `direction`
[INFO] [stdout]   --> src/network/peer.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         direction: ConnectionDirection,
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_direction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inbox`
[INFO] [stdout]   --> src/network/peer.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         inbox: VecDeque<Message>,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_inbox`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `genesis` is never used
[INFO] [stdout]   --> src/components/blockchain.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     impl BlockData {
[INFO] [stdout]    |     -------------- associated function in this implementation
[INFO] [stdout] 26 |         fn genesis(transactions: &Vec<Transaction>) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `BlockChainProject` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `block_chain_project`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `genesis` is never used
[INFO] [stdout]   --> src/components/blockchain.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     impl BlockData {
[INFO] [stdout]    |     -------------- associated function in this implementation
[INFO] [stdout] 26 |         fn genesis(transactions: &Vec<Transaction>) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |             stream.shutdown(Shutdown::Both);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 138 |             let _ = stream.shutdown(Shutdown::Both);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |             writer.write_all(&serialized);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 156 |             let _ = writer.write_all(&serialized);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:205:29
[INFO] [stdout]     |
[INFO] [stdout] 205 | ...                   ref_chain.append_block(&mut block);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 205 |                             let _ = ref_chain.append_block(&mut block);
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:210:33
[INFO] [stdout]     |
[INFO] [stdout] 210 | ...                   self.send_message(&p, &msg);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 210 |                                 let _ = self.send_message(&p, &msg);
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |             stream.shutdown(Shutdown::Both);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 138 |             let _ = stream.shutdown(Shutdown::Both);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |             writer.write_all(&serialized);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 156 |             let _ = writer.write_all(&serialized);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:205:29
[INFO] [stdout]     |
[INFO] [stdout] 205 | ...                   ref_chain.append_block(&mut block);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 205 |                             let _ = ref_chain.append_block(&mut block);
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:210:33
[INFO] [stdout]     |
[INFO] [stdout] 210 | ...                   self.send_message(&p, &msg);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 210 |                                 let _ = self.send_message(&p, &msg);
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/message_sender.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut peer = Peer::new(
[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]   --> src/bin/message_sender.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut peer = Peer::new(
[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: `sb`
[INFO] [stdout]   --> src/bin/message_sender.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let sb = Block::read_block("./storage/block1.bin").unwrap();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_sb`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sb`
[INFO] [stdout]   --> src/bin/message_sender.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let sb = Block::read_block("./storage/block1.bin").unwrap();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_sb`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/bin/message_sender.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let c = BlockChain::new();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/bin/message_sender.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let c = BlockChain::new();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/message_sender.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     peer.send_message(&receiving_peer_info, &Message::NewBlock(b));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let _ = peer.send_message(&receiving_peer_info, &Message::NewBlock(b));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/message_sender.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     peer.send_message(&receiving_peer_info, &Message::NewBlock(b));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let _ = peer.send_message(&receiving_peer_info, &Message::NewBlock(b));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/message_sender.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     peer.send_message(&receiving_peer_info, &Message::Transaction(tx));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let _ = peer.send_message(&receiving_peer_info, &Message::Transaction(tx));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/message_sender.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     peer.send_message(&receiving_peer_info, &Message::Transaction(tx));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let _ = peer.send_message(&receiving_peer_info, &Message::Transaction(tx));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/message_sender.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     peer.send_message(&receiving_peer_info, &Message::RequestInfo);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let _ = peer.send_message(&receiving_peer_info, &Message::RequestInfo);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/message_sender.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     peer.send_message(&receiving_peer_info, &Message::RequestInfo);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let _ = peer.send_message(&receiving_peer_info, &Message::RequestInfo);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serialize_into`
[INFO] [stdout]  --> src/components/blockchain.rs:4:37
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use bincode::{deserialize_from, serialize_into};
[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 imports: `Error` and `serialize_into`
[INFO] [stdout]    --> src/components/blockchain.rs:161:19
[INFO] [stdout]     |
[INFO] [stdout] 161 |     use bincode::{Error, deserialize_from, serialize_into};
[INFO] [stdout]     |                   ^^^^^                    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SigningKey`
[INFO] [stdout]   --> src/components/payment.rs:39:44
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use ed25519_dalek::{Signature, Signer, SigningKey, VerifyingKey};
[INFO] [stdout]    |                                            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sha2::digest::typenum::Pow`
[INFO] [stdout]   --> src/components/payment.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     use sha2::digest::typenum::Pow;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/network/p2p.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `Write`, and `prelude`
[INFO] [stdout]  --> src/network/p2p.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Write, prelude};
[INFO] [stdout]   |               ^^^^^^^             ^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/network/p2p.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/network/peer.rs:11:48
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::components::payment::transactions::{self, Transaction};
[INFO] [stdout]    |                                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BlockPredicates`
[INFO] [stdout]  --> src/main.rs:5:50
[INFO] [stdout]   |
[INFO] [stdout] 5 | use components::blockchain::chains::{BlockChain, BlockPredicates};
[INFO] [stdout]   |                                                  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serialize_into`
[INFO] [stdout]  --> src/components/blockchain.rs:4:37
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use bincode::{deserialize_from, serialize_into};
[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 imports: `Error` and `serialize_into`
[INFO] [stdout]    --> src/components/blockchain.rs:161:19
[INFO] [stdout]     |
[INFO] [stdout] 161 |     use bincode::{Error, deserialize_from, serialize_into};
[INFO] [stdout]     |                   ^^^^^                    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SigningKey`
[INFO] [stdout]   --> src/components/payment.rs:39:44
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use ed25519_dalek::{Signature, Signer, SigningKey, VerifyingKey};
[INFO] [stdout]    |                                            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sha2::digest::typenum::Pow`
[INFO] [stdout]   --> src/components/payment.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     use sha2::digest::typenum::Pow;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/network/p2p.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `Write`, and `prelude`
[INFO] [stdout]  --> src/network/p2p.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Write, prelude};
[INFO] [stdout]   |               ^^^^^^^             ^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/network/p2p.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/network/peer.rs:11:48
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::components::payment::transactions::{self, Transaction};
[INFO] [stdout]    |                                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BlockPredicates`
[INFO] [stdout]  --> src/main.rs:5:50
[INFO] [stdout]   |
[INFO] [stdout] 5 | use components::blockchain::chains::{BlockChain, BlockPredicates};
[INFO] [stdout]   |                                                  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Signer`
[INFO] [stdout]   --> src/components/payment.rs:39:36
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use ed25519_dalek::{Signature, Signer, SigningKey, VerifyingKey};
[INFO] [stdout]    |                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Signer`
[INFO] [stdout]   --> src/components/payment.rs:39:36
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use ed25519_dalek::{Signature, Signer, SigningKey, VerifyingKey};
[INFO] [stdout]    |                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nonce`
[INFO] [stdout]    --> src/components/blockchain.rs:208:37
[INFO] [stdout]     |
[INFO] [stdout] 208 |             let Block { data, hash, nonce } = self.last_block();
[INFO] [stdout]     |                                     ^^^^^ help: try ignoring the field: `nonce: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nonce`
[INFO] [stdout]    --> src/components/blockchain.rs:216:37
[INFO] [stdout]     |
[INFO] [stdout] 216 |             let Block { data, hash, nonce } = self.last_block();
[INFO] [stdout]     |                                     ^^^^^ help: try ignoring the field: `nonce: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/components/blockchain.rs:302:17
[INFO] [stdout]     |
[INFO] [stdout] 302 |             let mut fo = File::open(path)?;
[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: `nonce`
[INFO] [stdout]    --> src/components/blockchain.rs:208:37
[INFO] [stdout]     |
[INFO] [stdout] 208 |             let Block { data, hash, nonce } = self.last_block();
[INFO] [stdout]     |                                     ^^^^^ help: try ignoring the field: `nonce: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nonce`
[INFO] [stdout]    --> src/components/blockchain.rs:216:37
[INFO] [stdout]     |
[INFO] [stdout] 216 |             let Block { data, hash, nonce } = self.last_block();
[INFO] [stdout]     |                                     ^^^^^ help: try ignoring the field: `nonce: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/components/blockchain.rs:302:17
[INFO] [stdout]     |
[INFO] [stdout] 302 |             let mut fo = File::open(path)?;
[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]   --> src/network/p2p.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn handle_connection(mut stream: TcpStream) -> Result<Envelope, bincode::Error> {
[INFO] [stdout]    |                          ----^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/network/p2p.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn handle_connection(mut stream: TcpStream) -> Result<Envelope, bincode::Error> {
[INFO] [stdout]    |                          ----^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]   --> src/network/peer.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         status: ConnectionStatus,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `direction`
[INFO] [stdout]   --> src/network/peer.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         direction: ConnectionDirection,
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_direction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inbox`
[INFO] [stdout]   --> src/network/peer.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         inbox: VecDeque<Message>,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_inbox`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut peer = Peer::new(
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `genesis` is never used
[INFO] [stdout]   --> src/components/blockchain.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     impl BlockData {
[INFO] [stdout]    |     -------------- associated function in this implementation
[INFO] [stdout] 26 |         fn genesis(transactions: &Vec<Transaction>) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `read_block` is never used
[INFO] [stdout]    --> src/components/blockchain.rs:122:16
[INFO] [stdout]     |
[INFO] [stdout]  45 |     impl Block {
[INFO] [stdout]     |     ---------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 122 |         pub fn read_block(pth: &str) -> Result<Block, Box<dyn std::error::Error>> {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/components/blockchain.rs:191:12
[INFO] [stdout]     |
[INFO] [stdout] 174 |     impl BlockChain {
[INFO] [stdout]     |     --------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 191 |         fn create_chain_from_iter(blocks: Vec<Block>) -> Option<BlockChain> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 241 |         pub fn print(&self) {
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 270 |         pub fn save_blockchain(
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 290 |         pub fn load_blocks(pth: &str) -> Result<Option<BlockChain>, Box<dyn std::error::Error>> {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 300 |         pub fn load_chain(pth: &str) -> Result<BlockChain, Box<dyn std::error::Error>> {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 308 |         pub fn get_block_by_index(&self, index: usize) -> Option<&Block> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 312 |         pub fn search<F>(&self, predicate: F) -> Option<&Block>
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlockPredicates` is never constructed
[INFO] [stdout]    --> src/components/blockchain.rs:321:16
[INFO] [stdout]     |
[INFO] [stdout] 321 |     pub struct BlockPredicates;
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `by_nonce`, `by_transaction`, `by_timestamp`, and `by_prev_hash` are never used
[INFO] [stdout]    --> src/components/blockchain.rs:324:16
[INFO] [stdout]     |
[INFO] [stdout] 323 |     impl BlockPredicates {
[INFO] [stdout]     |     -------------------- associated functions in this implementation
[INFO] [stdout] 324 |         pub fn by_nonce(n: u32) -> impl Fn(&Block) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 328 |         pub fn by_transaction(tx: Transaction) -> impl Fn(&Block) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 332 |         pub fn by_timestamp(ts: u128) -> impl Fn(&Block) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 336 |         pub fn by_prev_hash(h: [u8; 32]) -> impl Fn(&Block) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `amount` is never read
[INFO] [stdout]   --> src/components/payment.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout]  7 |     pub struct Wallet {
[INFO] [stdout]    |                ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |         pub amount: u64,
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `create_transaction` is never used
[INFO] [stdout]   --> src/components/payment.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |     impl Wallet {
[INFO] [stdout]    |     ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |         pub fn create_transaction(&mut self, to: VerifyingKey, value: u64) -> Transaction {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_timestamp_millis` is never used
[INFO] [stdout]   --> src/components/utils.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn get_timestamp_millis() -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stream`, `status`, and `direction` are never read
[INFO] [stdout]   --> src/network/peer.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct PeerConnection {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 70 |     pub stream: Option<TcpStream>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 71 |     pub status: ConnectionStatus,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 72 |     pub direction: ConnectionDirection,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `connection`, `performance`, and `inbox` are never read
[INFO] [stdout]   --> src/network/peer.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct Peer {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 76 |     pub info: PeerInfo,
[INFO] [stdout] 77 |     pub connection: PeerConnection,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 78 |     pub performance: Option<PeerStats>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 79 |     pub inbox: VecDeque<Message>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]   --> src/network/peer.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         status: ConnectionStatus,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `direction`
[INFO] [stdout]   --> src/network/peer.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         direction: ConnectionDirection,
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_direction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `chain_len`, `connect`, `disconnect`, and `receive_message` are never used
[INFO] [stdout]    --> src/network/peer.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout]  84 | impl Peer {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn chain_len(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn connect(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 |     pub fn disconnect(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn receive_message(&mut self) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inbox`
[INFO] [stdout]   --> src/network/peer.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         inbox: VecDeque<Message>,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_inbox`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut peer = Peer::new(
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     remove_dir_all("./storage/");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let _ = remove_dir_all("./storage/");
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     create_dir("./storage/");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let _ = create_dir("./storage/");
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     Block::save_block(&b1, "./storage/block1.bin");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let _ = Block::save_block(&b1, "./storage/block1.bin");
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     start_server(Arc::clone(&peer));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let _ = start_server(Arc::clone(&peer));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `genesis` is never used
[INFO] [stdout]   --> src/components/blockchain.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     impl BlockData {
[INFO] [stdout]    |     -------------- associated function in this implementation
[INFO] [stdout] 26 |         fn genesis(transactions: &Vec<Transaction>) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `read_block` is never used
[INFO] [stdout]    --> src/components/blockchain.rs:122:16
[INFO] [stdout]     |
[INFO] [stdout]  45 |     impl Block {
[INFO] [stdout]     |     ---------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 122 |         pub fn read_block(pth: &str) -> Result<Block, Box<dyn std::error::Error>> {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/components/blockchain.rs:191:12
[INFO] [stdout]     |
[INFO] [stdout] 174 |     impl BlockChain {
[INFO] [stdout]     |     --------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 191 |         fn create_chain_from_iter(blocks: Vec<Block>) -> Option<BlockChain> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 241 |         pub fn print(&self) {
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 270 |         pub fn save_blockchain(
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 290 |         pub fn load_blocks(pth: &str) -> Result<Option<BlockChain>, Box<dyn std::error::Error>> {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 300 |         pub fn load_chain(pth: &str) -> Result<BlockChain, Box<dyn std::error::Error>> {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 308 |         pub fn get_block_by_index(&self, index: usize) -> Option<&Block> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 312 |         pub fn search<F>(&self, predicate: F) -> Option<&Block>
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlockPredicates` is never constructed
[INFO] [stdout]    --> src/components/blockchain.rs:321:16
[INFO] [stdout]     |
[INFO] [stdout] 321 |     pub struct BlockPredicates;
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `by_nonce`, `by_transaction`, `by_timestamp`, and `by_prev_hash` are never used
[INFO] [stdout]    --> src/components/blockchain.rs:324:16
[INFO] [stdout]     |
[INFO] [stdout] 323 |     impl BlockPredicates {
[INFO] [stdout]     |     -------------------- associated functions in this implementation
[INFO] [stdout] 324 |         pub fn by_nonce(n: u32) -> impl Fn(&Block) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 328 |         pub fn by_transaction(tx: Transaction) -> impl Fn(&Block) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 332 |         pub fn by_timestamp(ts: u128) -> impl Fn(&Block) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 336 |         pub fn by_prev_hash(h: [u8; 32]) -> impl Fn(&Block) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `amount` is never read
[INFO] [stdout]   --> src/components/payment.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout]  7 |     pub struct Wallet {
[INFO] [stdout]    |                ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |         pub amount: u64,
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `create_transaction` is never used
[INFO] [stdout]   --> src/components/payment.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |     impl Wallet {
[INFO] [stdout]    |     ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |         pub fn create_transaction(&mut self, to: VerifyingKey, value: u64) -> Transaction {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_timestamp_millis` is never used
[INFO] [stdout]   --> src/components/utils.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn get_timestamp_millis() -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stream`, `status`, and `direction` are never read
[INFO] [stdout]   --> src/network/peer.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct PeerConnection {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 70 |     pub stream: Option<TcpStream>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 71 |     pub status: ConnectionStatus,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 72 |     pub direction: ConnectionDirection,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `connection`, `performance`, and `inbox` are never read
[INFO] [stdout]   --> src/network/peer.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct Peer {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 76 |     pub info: PeerInfo,
[INFO] [stdout] 77 |     pub connection: PeerConnection,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 78 |     pub performance: Option<PeerStats>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 79 |     pub inbox: VecDeque<Message>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `chain_len`, `connect`, `disconnect`, and `receive_message` are never used
[INFO] [stdout]    --> src/network/peer.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout]  84 | impl Peer {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn chain_len(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn connect(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 |     pub fn disconnect(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn receive_message(&mut self) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |             stream.shutdown(Shutdown::Both);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 138 |             let _ = stream.shutdown(Shutdown::Both);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |             writer.write_all(&serialized);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 156 |             let _ = writer.write_all(&serialized);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:205:29
[INFO] [stdout]     |
[INFO] [stdout] 205 | ...                   ref_chain.append_block(&mut block);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 205 |                             let _ = ref_chain.append_block(&mut block);
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:210:33
[INFO] [stdout]     |
[INFO] [stdout] 210 | ...                   self.send_message(&p, &msg);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 210 |                                 let _ = self.send_message(&p, &msg);
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     remove_dir_all("./storage/");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let _ = remove_dir_all("./storage/");
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     create_dir("./storage/");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let _ = create_dir("./storage/");
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     Block::save_block(&b1, "./storage/block1.bin");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let _ = Block::save_block(&b1, "./storage/block1.bin");
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     start_server(Arc::clone(&peer));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let _ = start_server(Arc::clone(&peer));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |             stream.shutdown(Shutdown::Both);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 138 |             let _ = stream.shutdown(Shutdown::Both);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |             writer.write_all(&serialized);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 156 |             let _ = writer.write_all(&serialized);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:205:29
[INFO] [stdout]     |
[INFO] [stdout] 205 | ...                   ref_chain.append_block(&mut block);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 205 |                             let _ = ref_chain.append_block(&mut block);
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/network/peer.rs:210:33
[INFO] [stdout]     |
[INFO] [stdout] 210 | ...                   self.send_message(&p, &msg);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 210 |                                 let _ = self.send_message(&p, &msg);
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.85s
[INFO] running `Command { std: "docker" "inspect" "c59939abc6f010c97d1527c9fccb03d4741d82810a484e211cd0272f99e25e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c59939abc6f010c97d1527c9fccb03d4741d82810a484e211cd0272f99e25e75", kill_on_drop: false }`
[INFO] [stdout] c59939abc6f010c97d1527c9fccb03d4741d82810a484e211cd0272f99e25e75