[INFO] cloning repository https://github.com/ArabMohammed/postquantum-blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ArabMohammed/postquantum-blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArabMohammed%2Fpostquantum-blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArabMohammed%2Fpostquantum-blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3206293638a9be22425043ab4f79d1a0dbe7586b
[INFO] checking ArabMohammed/postquantum-blockchain against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArabMohammed%2Fpostquantum-blockchain" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ArabMohammed/postquantum-blockchain
[INFO] finished tweaking git repo https://github.com/ArabMohammed/postquantum-blockchain
[INFO] tweaked toml for git repo https://github.com/ArabMohammed/postquantum-blockchain written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ArabMohammed/postquantum-blockchain on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ArabMohammed/postquantum-blockchain 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb646c3a4e75dc7ee73d8b25840ecaeaf914ee67cd1e26dcbde35d0cb32dd7ce
[INFO] running `Command { std: "docker" "start" "-a" "bb646c3a4e75dc7ee73d8b25840ecaeaf914ee67cd1e26dcbde35d0cb32dd7ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb646c3a4e75dc7ee73d8b25840ecaeaf914ee67cd1e26dcbde35d0cb32dd7ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb646c3a4e75dc7ee73d8b25840ecaeaf914ee67cd1e26dcbde35d0cb32dd7ce", kill_on_drop: false }`
[INFO] [stdout] bb646c3a4e75dc7ee73d8b25840ecaeaf914ee67cd1e26dcbde35d0cb32dd7ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3544dff1ae9e53b32898e3ca0e8e91e0135259926cc19bebfd4fea82475ff3f
[INFO] running `Command { std: "docker" "start" "-a" "d3544dff1ae9e53b32898e3ca0e8e91e0135259926cc19bebfd4fea82475ff3f", kill_on_drop: false }`
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[INFO] [stderr]     Checking blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sled::transaction`
[INFO] [stdout]  --> src/block.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use sled::transaction;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::info`
[INFO] [stdout]  --> src/block.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use log::info;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash::Hash`
[INFO] [stdout]  --> src/blockchain.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, hash::Hash};
[INFO] [stdout]   |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]  --> src/blockchain.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{info,debug};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TXOutput` and `self`
[INFO] [stdout]  --> src/blockchain.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::{block::{self, *}, transaction::Transaction, tx::{TXOutput, TXOutputs}};
[INFO] [stdout]   |                     ^^^^                                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bincode::Error`
[INFO] [stdout]  --> src/cli.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use bincode::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Wallet` and `block::Block`
[INFO] [stdout]  --> src/cli.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::{block::Block, 
[INFO] [stdout]   |             ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     wallet::{Wallet,Wallets}
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sled::transaction`
[INFO] [stdout]  --> src/transaction.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sled::transaction;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `blockchain::Blockchain`, `self`, and `self`
[INFO] [stdout]  --> src/transaction.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{blockchain::Blockchain, tx::{self, TXInput, TXOutput}, utxoset::UTXOSet, wallet::{self, hash_pub_key, Wallets}};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^       ^^^^                                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/wallet.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::hash::Hash;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bincode::Error`
[INFO] [stdout]  --> src/wallet.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use bincode::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::error`
[INFO] [stdout]  --> src/utxoset.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json::error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/server.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::constants::*`
[INFO] [stdout]  --> src/server.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::constants::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `deserialize` and `serialize`
[INFO] [stdout]   --> src/server.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | use bincode::{deserialize, serialize};
[INFO] [stdout]    |               ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `failure::format_err`
[INFO] [stdout]   --> src/server.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use failure::format_err;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]   --> src/server.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::io::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Mul`
[INFO] [stdout]   --> src/server.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::ops::Mul;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Behaviour`, `Mode`, `NetworkBehaviour`, `mdns`, and `ping`
[INFO] [stdout]   --> src/server.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     ping,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 26 |     Swarm,
[INFO] [stdout] 27 |     swarm::{NetworkBehaviour,SwarmEvent},tcp
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |     ,yamux,
[INFO] [stdout] 29 |     kad::{store::MemoryStore, Mode,Behaviour},
[INFO] [stdout]    |                               ^^^^ ^^^^^^^^^
[INFO] [stdout] 30 |     kad,
[INFO] [stdout] 31 |     mdns
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing_subscriber::EnvFilter`
[INFO] [stdout]   --> src/server.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | use tracing_subscriber::EnvFilter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Builder` and `Env`
[INFO] [stdout]   --> src/server.rs:49:18
[INFO] [stdout]    |
[INFO] [stdout] 49 | use env_logger::{Env, Builder};
[INFO] [stdout]    |                  ^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::args`
[INFO] [stdout]   --> src/server.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | use std::env::args;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `identify`
[INFO] [stdout]  --> src/behavior.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 | use libp2p::{identify, Multiaddr, PeerId};
[INFO] [stdout]   |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResponseChannel as RequestResponseChannel`
[INFO] [stdout]   --> src/behavior.rs:15:82
[INFO] [stdout]    |
[INFO] [stdout] 15 | use libp2p::request_response::{Event as RequestResponseEvent, OutboundRequestId, ResponseChannel as RequestResponseChannel};
[INFO] [stdout]    |                                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sled::transaction`
[INFO] [stdout]  --> src/block.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use sled::transaction;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::info`
[INFO] [stdout]  --> src/block.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use log::info;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash::Hash`
[INFO] [stdout]  --> src/blockchain.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, hash::Hash};
[INFO] [stdout]   |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]  --> src/blockchain.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{info,debug};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TXOutput` and `self`
[INFO] [stdout]  --> src/blockchain.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::{block::{self, *}, transaction::Transaction, tx::{TXOutput, TXOutputs}};
[INFO] [stdout]   |                     ^^^^                                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bincode::Error`
[INFO] [stdout]  --> src/cli.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use bincode::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Wallet` and `block::Block`
[INFO] [stdout]  --> src/cli.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::{block::Block, 
[INFO] [stdout]   |             ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     wallet::{Wallet,Wallets}
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sled::transaction`
[INFO] [stdout]  --> src/transaction.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sled::transaction;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `blockchain::Blockchain`, `self`, and `self`
[INFO] [stdout]  --> src/transaction.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{blockchain::Blockchain, tx::{self, TXInput, TXOutput}, utxoset::UTXOSet, wallet::{self, hash_pub_key, Wallets}};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^       ^^^^                                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/wallet.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::hash::Hash;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bincode::Error`
[INFO] [stdout]  --> src/wallet.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use bincode::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::error`
[INFO] [stdout]  --> src/utxoset.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json::error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/server.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::constants::*`
[INFO] [stdout]  --> src/server.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::constants::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `deserialize` and `serialize`
[INFO] [stdout]   --> src/server.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | use bincode::{deserialize, serialize};
[INFO] [stdout]    |               ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `failure::format_err`
[INFO] [stdout]   --> src/server.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use failure::format_err;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]   --> src/server.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::io::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Mul`
[INFO] [stdout]   --> src/server.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::ops::Mul;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Behaviour`, `Mode`, `NetworkBehaviour`, `mdns`, and `ping`
[INFO] [stdout]   --> src/server.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     ping,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 26 |     Swarm,
[INFO] [stdout] 27 |     swarm::{NetworkBehaviour,SwarmEvent},tcp
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |     ,yamux,
[INFO] [stdout] 29 |     kad::{store::MemoryStore, Mode,Behaviour},
[INFO] [stdout]    |                               ^^^^ ^^^^^^^^^
[INFO] [stdout] 30 |     kad,
[INFO] [stdout] 31 |     mdns
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing_subscriber::EnvFilter`
[INFO] [stdout]   --> src/server.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | use tracing_subscriber::EnvFilter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Builder` and `Env`
[INFO] [stdout]   --> src/server.rs:49:18
[INFO] [stdout]    |
[INFO] [stdout] 49 | use env_logger::{Env, Builder};
[INFO] [stdout]    |                  ^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::args`
[INFO] [stdout]   --> src/server.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | use std::env::args;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `identify`
[INFO] [stdout]  --> src/behavior.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 | use libp2p::{identify, Multiaddr, PeerId};
[INFO] [stdout]   |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResponseChannel as RequestResponseChannel`
[INFO] [stdout]   --> src/behavior.rs:15:82
[INFO] [stdout]    |
[INFO] [stdout] 15 | use libp2p::request_response::{Event as RequestResponseEvent, OutboundRequestId, ResponseChannel as RequestResponseChannel};
[INFO] [stdout]    |                                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cli.rs:221:9
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let mut utxo_set = UTXOSet { blockchain: bc };
[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/cli.rs:221:9
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let mut utxo_set = UTXOSet { blockchain: bc };
[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/server.rs:83:29
[INFO] [stdout]    |
[INFO] [stdout] 83 |                         let mut kad_config = kad::Config::new(StreamProtocol::new("/agent/connection/1.0.0"));
[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/server.rs:83:29
[INFO] [stdout]    |
[INFO] [stdout] 83 |                         let mut kad_config = kad::Config::new(StreamProtocol::new("/agent/connection/1.0.0"));
[INFO] [stdout]    |                             ----^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/server.rs:438:17
[INFO] [stdout]     |
[INFO] [stdout] 438 |                 _ => {}
[INFO] [stdout]     |                 ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/server.rs:438:17
[INFO] [stdout]     |
[INFO] [stdout] 416 |                 RequestResponseEvent::Message { peer, connection_id, message }=> {
[INFO] [stdout]     |                 -------------------------------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 427 |                 RequestResponseEvent::InboundFailure { peer, connection_id,request_id, error } => {
[INFO] [stdout]     |                 ------------------------------------------------------------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 431 |                 RequestResponseEvent::ResponseSent { peer, connection_id,request_id } => {
[INFO] [stdout]     |                 --------------------------------------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 435 |                 RequestResponseEvent::OutboundFailure { peer, connection_id,request_id, error } => {
[INFO] [stdout]     |                 ------------------------------------------------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 438 |                 _ => {}
[INFO] [stdout]     |                 ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/server.rs:438:17
[INFO] [stdout]     |
[INFO] [stdout] 438 |                 _ => {}
[INFO] [stdout]     |                 ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/server.rs:438:17
[INFO] [stdout]     |
[INFO] [stdout] 416 |                 RequestResponseEvent::Message { peer, connection_id, message }=> {
[INFO] [stdout]     |                 -------------------------------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 427 |                 RequestResponseEvent::InboundFailure { peer, connection_id,request_id, error } => {
[INFO] [stdout]     |                 ------------------------------------------------------------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 431 |                 RequestResponseEvent::ResponseSent { peer, connection_id,request_id } => {
[INFO] [stdout]     |                 --------------------------------------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 435 |                 RequestResponseEvent::OutboundFailure { peer, connection_id,request_id, error } => {
[INFO] [stdout]     |                 ------------------------------------------------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 438 |                 _ => {}
[INFO] [stdout]     |                 ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `libp2p::libp2p_request_response::Behaviour::<TCodec>::add_address`: Use `Swarm::add_peer_address` instead.
[INFO] [stdout]   --> src/behavior.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |         self.rr.add_address(peer_id, addr)
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `libp2p::libp2p_request_response::Behaviour::<TCodec>::add_address`: Use `Swarm::add_peer_address` instead.
[INFO] [stdout]   --> src/behavior.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |         self.rr.add_address(peer_id, addr)
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/blockchain.rs:40:20
[INFO] [stdout]    |
[INFO] [stdout] 40 |         if let Err(e) = std::fs::remove_dir_all("data/blocks"){
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/blockchain.rs:40:20
[INFO] [stdout]    |
[INFO] [stdout] 40 |         if let Err(e) = std::fs::remove_dir_all("data/blocks"){
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/blockchain.rs:345:13
[INFO] [stdout]     |
[INFO] [stdout] 345 |         let mut b = Blockchain::new().unwrap();
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:158:47
[INFO] [stdout]     |
[INFO] [stdout] 158 |                     IdentifyEvent::Received { connection_id, peer_id, info }=> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:175:55
[INFO] [stdout]     |
[INFO] [stdout] 175 | ...   SwarmEvent::IncomingConnectionError { connection_id, local_addr, send_back_addr, error } => println!("incming connection error"),
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local_addr`
[INFO] [stdout]    --> src/server.rs:175:70
[INFO] [stdout]     |
[INFO] [stdout] 175 | ...   SwarmEvent::IncomingConnectionError { connection_id, local_addr, send_back_addr, error } => println!("incming connection error"),
[INFO] [stdout]     |                                                            ^^^^^^^^^^ help: try ignoring the field: `local_addr: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `send_back_addr`
[INFO] [stdout]    --> src/server.rs:175:82
[INFO] [stdout]     |
[INFO] [stdout] 175 | ...Error { connection_id, local_addr, send_back_addr, error } => println!("incming connection error"),
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^ help: try ignoring the field: `send_back_addr: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]    --> src/server.rs:175:98
[INFO] [stdout]     |
[INFO] [stdout] 175 | ...   SwarmEvent::IncomingConnectionError { connection_id, local_addr, send_back_addr, error } => println!("incming connection error"),
[INFO] [stdout]     |                                                                                        ^^^^^ help: try ignoring the field: `error: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:176:55
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 SwarmEvent::OutgoingConnectionError { connection_id, peer_id, error } => println!("outgoing connection error !!"),
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer_id`
[INFO] [stdout]    --> src/server.rs:176:70
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 SwarmEvent::OutgoingConnectionError { connection_id, peer_id, error } => println!("outgoing connection error !!"),
[INFO] [stdout]     |                                                                      ^^^^^^^ help: try ignoring the field: `peer_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]    --> src/server.rs:176:79
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 SwarmEvent::OutgoingConnectionError { connection_id, peer_id, error } => println!("outgoing connection error !!"),
[INFO] [stdout]     |                                                                               ^^^^^ help: try ignoring the field: `error: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:158:47
[INFO] [stdout]     |
[INFO] [stdout] 158 |                     IdentifyEvent::Received { connection_id, peer_id, info }=> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:175:55
[INFO] [stdout]     |
[INFO] [stdout] 175 | ...   SwarmEvent::IncomingConnectionError { connection_id, local_addr, send_back_addr, error } => println!("incming connection error"),
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local_addr`
[INFO] [stdout]    --> src/server.rs:175:70
[INFO] [stdout]     |
[INFO] [stdout] 175 | ...   SwarmEvent::IncomingConnectionError { connection_id, local_addr, send_back_addr, error } => println!("incming connection error"),
[INFO] [stdout]     |                                                            ^^^^^^^^^^ help: try ignoring the field: `local_addr: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `send_back_addr`
[INFO] [stdout]    --> src/server.rs:175:82
[INFO] [stdout]     |
[INFO] [stdout] 175 | ...Error { connection_id, local_addr, send_back_addr, error } => println!("incming connection error"),
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^ help: try ignoring the field: `send_back_addr: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]    --> src/server.rs:175:98
[INFO] [stdout]     |
[INFO] [stdout] 175 | ...   SwarmEvent::IncomingConnectionError { connection_id, local_addr, send_back_addr, error } => println!("incming connection error"),
[INFO] [stdout]     |                                                                                        ^^^^^ help: try ignoring the field: `error: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:176:55
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 SwarmEvent::OutgoingConnectionError { connection_id, peer_id, error } => println!("outgoing connection error !!"),
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer_id`
[INFO] [stdout]    --> src/server.rs:176:70
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 SwarmEvent::OutgoingConnectionError { connection_id, peer_id, error } => println!("outgoing connection error !!"),
[INFO] [stdout]     |                                                                      ^^^^^^^ help: try ignoring the field: `peer_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]    --> src/server.rs:176:79
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 SwarmEvent::OutgoingConnectionError { connection_id, peer_id, error } => println!("outgoing connection error !!"),
[INFO] [stdout]     |                                                                               ^^^^^ help: try ignoring the field: `error: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:393:43
[INFO] [stdout]     |
[INFO] [stdout] 393 |                 IdentifyEvent::Received { connection_id, peer_id, info }=> {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:416:55
[INFO] [stdout]     |
[INFO] [stdout] 416 |                 RequestResponseEvent::Message { peer, connection_id, message }=> {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `request_id`
[INFO] [stdout]    --> src/server.rs:418:59
[INFO] [stdout]     |
[INFO] [stdout] 418 |                         RequestResponseMessage::Request { request_id, request, channel } => {
[INFO] [stdout]     |                                                           ^^^^^^^^^^ help: try ignoring the field: `request_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `channel`
[INFO] [stdout]    --> src/server.rs:418:80
[INFO] [stdout]     |
[INFO] [stdout] 418 |                         RequestResponseMessage::Request { request_id, request, channel } => {
[INFO] [stdout]     |                                                                                ^^^^^^^ help: try ignoring the field: `channel: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:427:62
[INFO] [stdout]     |
[INFO] [stdout] 427 |                 RequestResponseEvent::InboundFailure { peer, connection_id,request_id, error } => {
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:431:60
[INFO] [stdout]     |
[INFO] [stdout] 431 |                 RequestResponseEvent::ResponseSent { peer, connection_id,request_id } => {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:435:63
[INFO] [stdout]     |
[INFO] [stdout] 435 |                 RequestResponseEvent::OutboundFailure { peer, connection_id,request_id, error } => {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mine_now`
[INFO] [stdout]    --> src/cli.rs:219:54
[INFO] [stdout]     |
[INFO] [stdout] 219 | async fn cmd_send(from: &str, to: &str, amount: i32, mine_now: bool) -> Result<(),Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mine_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:393:43
[INFO] [stdout]     |
[INFO] [stdout] 393 |                 IdentifyEvent::Received { connection_id, peer_id, info }=> {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:416:55
[INFO] [stdout]     |
[INFO] [stdout] 416 |                 RequestResponseEvent::Message { peer, connection_id, message }=> {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `request_id`
[INFO] [stdout]    --> src/server.rs:418:59
[INFO] [stdout]     |
[INFO] [stdout] 418 |                         RequestResponseMessage::Request { request_id, request, channel } => {
[INFO] [stdout]     |                                                           ^^^^^^^^^^ help: try ignoring the field: `request_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `channel`
[INFO] [stdout]    --> src/server.rs:418:80
[INFO] [stdout]     |
[INFO] [stdout] 418 |                         RequestResponseMessage::Request { request_id, request, channel } => {
[INFO] [stdout]     |                                                                                ^^^^^^^ help: try ignoring the field: `channel: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:427:62
[INFO] [stdout]     |
[INFO] [stdout] 427 |                 RequestResponseEvent::InboundFailure { peer, connection_id,request_id, error } => {
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:431:60
[INFO] [stdout]     |
[INFO] [stdout] 431 |                 RequestResponseEvent::ResponseSent { peer, connection_id,request_id } => {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_id`
[INFO] [stdout]    --> src/server.rs:435:63
[INFO] [stdout]     |
[INFO] [stdout] 435 |                 RequestResponseEvent::OutboundFailure { peer, connection_id,request_id, error } => {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^ help: try ignoring the field: `connection_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mine_now`
[INFO] [stdout]    --> src/cli.rs:219:54
[INFO] [stdout]     |
[INFO] [stdout] 219 | async fn cmd_send(from: &str, to: &str, amount: i32, mine_now: bool) -> Result<(),Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mine_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/utxoset.rs:25:20
[INFO] [stdout]    |
[INFO] [stdout] 25 |         if let Err(e) = std::fs::remove_dir_all("data/utxos"){
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/utxoset.rs:25:20
[INFO] [stdout]    |
[INFO] [stdout] 25 |         if let Err(e) = std::fs::remove_dir_all("data/utxos"){
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total_transactions_size`
[INFO] [stdout]    --> src/server.rs:507:13
[INFO] [stdout]     |
[INFO] [stdout] 507 |         let total_transactions_size: usize = mempool.values().map(|v| v.get_heap_size()).sum();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_total_transactions_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total_transactions_size`
[INFO] [stdout]    --> src/server.rs:507:13
[INFO] [stdout]     |
[INFO] [stdout] 507 |         let total_transactions_size: usize = mempool.values().map(|v| v.get_heap_size()).sum();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_total_transactions_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TARGET_HEXT` is never used
[INFO] [stdout]  --> src/blockchain.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const TARGET_HEXT: usize = 4; 
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_unspent_transactions` is never used
[INFO] [stdout]    --> src/blockchain.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout]  20 | impl Blockchain {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 116 |     fn find_unspent_transactions(&self, address : &[u8])  -> Vec<Transaction>{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_id` is never used
[INFO] [stdout]    --> src/transaction.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout]  20 | impl Transaction {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn set_id(&mut self)-> Result<(),Box<dyn std::error::Error>>{
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_unlock_output_with` is never used
[INFO] [stdout]   --> src/tx.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl TXInput {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 34 |     // CanUlockOutputWith checks whether the address initiated the transaction
[INFO] [stdout] 35 |     pub fn can_unlock_output_with(&self,unlocking_data : &[u8]) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update` is never used
[INFO] [stdout]   --> src/utxoset.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl UTXOSet {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn update(&self, block : &Block) -> Result<(),Box<dyn std::error::Error>>{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CMD_LEN` is never used
[INFO] [stdout]   --> src/server.rs:67:7
[INFO] [stdout]    |
[INFO] [stdout] 67 | const CMD_LEN: usize = 12;
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `request_blocks` is never used
[INFO] [stdout]    --> src/server.rs:259:8
[INFO] [stdout]     |
[INFO] [stdout]  70 | impl Server {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 259 |     fn request_blocks(&mut self) -> Result<(),Box<dyn std::error::Error>>{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_server_mode` is never used
[INFO] [stdout]   --> src/behavior.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Behavior {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn set_server_mode(&mut self){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_BLOCK_SIZE` is never used
[INFO] [stdout]  --> src/constants.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const MAX_BLOCK_SIZE : usize = 2^20; 
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TARGET_HEXT` is never used
[INFO] [stdout]  --> src/constants.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const TARGET_HEXT: usize = 4; 
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `COINBASE_MATURITY_THRESHOLD` is never used
[INFO] [stdout]  --> src/constants.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const COINBASE_MATURITY_THRESHOLD: usize = 100 ;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TARGET_HEXT` is never used
[INFO] [stdout]  --> src/blockchain.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const TARGET_HEXT: usize = 4; 
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `spent_TXOs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:117:17
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let mut spent_TXOs : HashMap<String,Vec<i32>> = HashMap::new();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: convert the identifier to snake case: `spent_txos`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_unspent_transactions` is never used
[INFO] [stdout]    --> src/blockchain.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout]  20 | impl Blockchain {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 116 |     fn find_unspent_transactions(&self, address : &[u8])  -> Vec<Transaction>{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `unspend_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:118:17
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let mut unspend_TXs : Vec<Transaction> = Vec::new();
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `unspend_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_id` is never used
[INFO] [stdout]    --> src/transaction.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout]  20 | impl Transaction {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn set_id(&mut self)-> Result<(),Box<dyn std::error::Error>>{
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_UTXO` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:166:12
[INFO] [stdout]     |
[INFO] [stdout] 166 |     pub fn find_UTXO(&self) -> HashMap<String,TXOutputs>{
[INFO] [stdout]     |            ^^^^^^^^^ help: convert the identifier to snake case: `find_utxo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |         let prev_TXs = self.get_prev_TXs(tx)?;
[INFO] [stdout]     |             ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:254:13
[INFO] [stdout]     |
[INFO] [stdout] 254 |         let prev_TXs = self.get_prev_TXs(tx)?;
[INFO] [stdout]     |             ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_unlock_output_with` is never used
[INFO] [stdout]   --> src/tx.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl TXInput {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 34 |     // CanUlockOutputWith checks whether the address initiated the transaction
[INFO] [stdout] 35 |     pub fn can_unlock_output_with(&self,unlocking_data : &[u8]) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:296:8
[INFO] [stdout]     |
[INFO] [stdout] 296 |     fn get_prev_TXs(&self,tx : &Transaction) -> Result<HashMap<String,Transaction>,Box<dyn std::error::Error>>{
[INFO] [stdout]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `get_prev_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:297:17
[INFO] [stdout]     |
[INFO] [stdout] 297 |         let mut prev_TXs = HashMap::new();
[INFO] [stdout]     |                 ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update` is never used
[INFO] [stdout]   --> src/utxoset.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl UTXOSet {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn update(&self, block : &Block) -> Result<(),Box<dyn std::error::Error>>{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CMD_LEN` is never used
[INFO] [stdout]   --> src/server.rs:67:7
[INFO] [stdout]    |
[INFO] [stdout] 67 | const CMD_LEN: usize = 12;
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `request_blocks` is never used
[INFO] [stdout]    --> src/server.rs:259:8
[INFO] [stdout]     |
[INFO] [stdout]  70 | impl Server {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 259 |     fn request_blocks(&mut self) -> Result<(),Box<dyn std::error::Error>>{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/blockchain.rs:311:17
[INFO] [stdout]     |
[INFO] [stdout] 311 |     pub fn iter(&self) -> BlockchainIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 311 |     pub fn iter(&self) -> BlockchainIter<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_server_mode` is never used
[INFO] [stdout]   --> src/behavior.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Behavior {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn set_server_mode(&mut self){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_BLOCK_SIZE` is never used
[INFO] [stdout]  --> src/constants.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const MAX_BLOCK_SIZE : usize = 2^20; 
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TARGET_HEXT` is never used
[INFO] [stdout]  --> src/constants.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const TARGET_HEXT: usize = 4; 
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `COINBASE_MATURITY_THRESHOLD` is never used
[INFO] [stdout]  --> src/constants.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const COINBASE_MATURITY_THRESHOLD: usize = 100 ;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `spent_TXOs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:117:17
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let mut spent_TXOs : HashMap<String,Vec<i32>> = HashMap::new();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: convert the identifier to snake case: `spent_txos`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `unspend_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:118:17
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let mut unspend_TXs : Vec<Transaction> = Vec::new();
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `unspend_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_UTXO` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:166:12
[INFO] [stdout]     |
[INFO] [stdout] 166 |     pub fn find_UTXO(&self) -> HashMap<String,TXOutputs>{
[INFO] [stdout]     |            ^^^^^^^^^ help: convert the identifier to snake case: `find_utxo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |         let prev_TXs = self.get_prev_TXs(tx)?;
[INFO] [stdout]     |             ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:254:13
[INFO] [stdout]     |
[INFO] [stdout] 254 |         let prev_TXs = self.get_prev_TXs(tx)?;
[INFO] [stdout]     |             ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:296:8
[INFO] [stdout]     |
[INFO] [stdout] 296 |     fn get_prev_TXs(&self,tx : &Transaction) -> Result<HashMap<String,Transaction>,Box<dyn std::error::Error>>{
[INFO] [stdout]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `get_prev_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:297:17
[INFO] [stdout]     |
[INFO] [stdout] 297 |         let mut prev_TXs = HashMap::new();
[INFO] [stdout]     |                 ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/blockchain.rs:311:17
[INFO] [stdout]     |
[INFO] [stdout] 311 |     pub fn iter(&self) -> BlockchainIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 311 |     pub fn iter(&self) -> BlockchainIter<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `new_UTXO` should have a snake case name
[INFO] [stdout]   --> src/transaction.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new_UTXO(from : &str, to : &str, amount : i32 , bc: &UTXOSet) -> Result<Transaction,Box<dyn std::error::Error>>{
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case: `new_utxo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/transaction.rs:119:49
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn sign(&mut self, private_key : &[u8], prev_TXs : HashMap<String,Transaction>,
[INFO] [stdout]     |                                                 ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/transaction.rs:177:26
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub fn verify(&self, prev_TXs : HashMap<String,Transaction>)-> Result<bool,Box<dyn std::error::Error>>{
[INFO] [stdout]     |                          ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_Tx` should have a snake case name
[INFO] [stdout]    --> src/transaction.rs:189:17
[INFO] [stdout]     |
[INFO] [stdout] 189 |             let prev_Tx = prev_TXs.get(&self.vin[in_id].txid).unwrap();
[INFO] [stdout]     |                 ^^^^^^^ help: convert the identifier to snake case: `prev_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `new_UTXO` should have a snake case name
[INFO] [stdout]   --> src/transaction.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new_UTXO(from : &str, to : &str, amount : i32 , bc: &UTXOSet) -> Result<Transaction,Box<dyn std::error::Error>>{
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case: `new_utxo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/transaction.rs:119:49
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn sign(&mut self, private_key : &[u8], prev_TXs : HashMap<String,Transaction>,
[INFO] [stdout]     |                                                 ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/transaction.rs:177:26
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub fn verify(&self, prev_TXs : HashMap<String,Transaction>)-> Result<bool,Box<dyn std::error::Error>>{
[INFO] [stdout]     |                          ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_Tx` should have a snake case name
[INFO] [stdout]    --> src/transaction.rs:189:17
[INFO] [stdout]     |
[INFO] [stdout] 189 |             let prev_Tx = prev_TXs.get(&self.vin[in_id].txid).unwrap();
[INFO] [stdout]     |                 ^^^^^^^ help: convert the identifier to snake case: `prev_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_UTXO` should have a snake case name
[INFO] [stdout]    --> src/utxoset.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn find_UTXO(&self,pub_key_hash : &[u8]) -> Result<TXOutputs,Box<dyn std::error::Error>>{
[INFO] [stdout]     |            ^^^^^^^^^ help: convert the identifier to snake case: `find_utxo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, SwarmBuilder<libp2p::builder::phase::provider::Tokio, libp2p::builder::phase::swarm::SwarmPhase<impl libp2p::builder::phase::AuthenticatedMultiplexedTransport, Behavior>>>
[INFO] [stdout]   --> src/server.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 |           let mut swarm = libp2p::SwarmBuilder::with_existing_identity(local_key.clone())
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 74 | |                     .with_tokio()
[INFO] [stdout] 75 | |                     .with_tcp(
[INFO] [stdout] 76 | |                         tcp::Config::default(), 
[INFO] [stdout] ...  |
[INFO] [stdout] 98 | |                         Behavior::new(kad_mem_behaviour,identify,rr_behavior)
[INFO] [stdout] 99 | |                     })?
[INFO] [stdout]    | |_______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<SwarmBuilder<libp2p::builder::phase::provider::Tokio, libp2p::builder::phase::swarm::SwarmPhase<impl libp2p::builder::phase::AuthenticatedMultiplexedTransport, Behavior>>, Infallible>
[INFO] [stdout]   --> src/server.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 |           let mut swarm = libp2p::SwarmBuilder::with_existing_identity(local_key.clone())
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 74 | |                     .with_tokio()
[INFO] [stdout] 75 | |                     .with_tcp(
[INFO] [stdout] 76 | |                         tcp::Config::default(), 
[INFO] [stdout] ...  |
[INFO] [stdout] 98 | |                         Behavior::new(kad_mem_behaviour,identify,rr_behavior)
[INFO] [stdout] 99 | |                     })?
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_UTXO` should have a snake case name
[INFO] [stdout]    --> src/utxoset.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn find_UTXO(&self,pub_key_hash : &[u8]) -> Result<TXOutputs,Box<dyn std::error::Error>>{
[INFO] [stdout]     |            ^^^^^^^^^ help: convert the identifier to snake case: `find_utxo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, SwarmBuilder<libp2p::builder::phase::provider::Tokio, libp2p::builder::phase::swarm::SwarmPhase<impl libp2p::builder::phase::AuthenticatedMultiplexedTransport, Behavior>>>
[INFO] [stdout]   --> src/server.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 |           let mut swarm = libp2p::SwarmBuilder::with_existing_identity(local_key.clone())
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 74 | |                     .with_tokio()
[INFO] [stdout] 75 | |                     .with_tcp(
[INFO] [stdout] 76 | |                         tcp::Config::default(), 
[INFO] [stdout] ...  |
[INFO] [stdout] 98 | |                         Behavior::new(kad_mem_behaviour,identify,rr_behavior)
[INFO] [stdout] 99 | |                     })?
[INFO] [stdout]    | |_______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<SwarmBuilder<libp2p::builder::phase::provider::Tokio, libp2p::builder::phase::swarm::SwarmPhase<impl libp2p::builder::phase::AuthenticatedMultiplexedTransport, Behavior>>, Infallible>
[INFO] [stdout]   --> src/server.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 |           let mut swarm = libp2p::SwarmBuilder::with_existing_identity(local_key.clone())
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 74 | |                     .with_tokio()
[INFO] [stdout] 75 | |                     .with_tcp(
[INFO] [stdout] 76 | |                         tcp::Config::default(), 
[INFO] [stdout] ...  |
[INFO] [stdout] 98 | |                         Behavior::new(kad_mem_behaviour,identify,rr_behavior)
[INFO] [stdout] 99 | |                     })?
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blockchain` (bin "blockchain") due to 2 previous errors; 71 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `blockchain` (bin "blockchain" test) due to 2 previous errors; 72 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d3544dff1ae9e53b32898e3ca0e8e91e0135259926cc19bebfd4fea82475ff3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3544dff1ae9e53b32898e3ca0e8e91e0135259926cc19bebfd4fea82475ff3f", kill_on_drop: false }`
[INFO] [stdout] d3544dff1ae9e53b32898e3ca0e8e91e0135259926cc19bebfd4fea82475ff3f
