[INFO] cloning repository https://github.com/justbytecode/bitcoin_like_chain_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/justbytecode/bitcoin_like_chain_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustbytecode%2Fbitcoin_like_chain_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustbytecode%2Fbitcoin_like_chain_Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a5fdb35f8c3b3f0ccb2eb7f22dfbe67f8915437
[INFO] checking justbytecode/bitcoin_like_chain_Rust against e3607d549209cc9fdfe7e907123b4185210e2c2b for pr-158915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustbytecode%2Fbitcoin_like_chain_Rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/justbytecode/bitcoin_like_chain_Rust
[INFO] finished tweaking git repo https://github.com/justbytecode/bitcoin_like_chain_Rust
[INFO] tweaked toml for git repo https://github.com/justbytecode/bitcoin_like_chain_Rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/justbytecode/bitcoin_like_chain_Rust on toolchain e3607d549209cc9fdfe7e907123b4185210e2c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/justbytecode/bitcoin_like_chain_Rust 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" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `blockchain_rust` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-2-tc2/source/target/.../blockchain_rust
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `blockchain-rust`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 - name = "blockchain_rust"
[INFO] [stderr] 21 + name = "blockchain-rust"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `blockchain-rust`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:22:19
[INFO] [stderr]    |
[INFO] [stderr] 22 ~ version = "0.1.0"
[INFO] [stderr] 23 + [[bin]]
[INFO] [stderr] 24 + name = "blockchain-rust"
[INFO] [stderr] 25 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `blockchain_rust` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking justbytecode/bitcoin_like_chain_Rust against e3607d549209cc9fdfe7e907123b4185210e2c2b for pr-158915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustbytecode%2Fbitcoin_like_chain_Rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/justbytecode/bitcoin_like_chain_Rust
[INFO] finished tweaking git repo https://github.com/justbytecode/bitcoin_like_chain_Rust
[INFO] tweaked toml for git repo https://github.com/justbytecode/bitcoin_like_chain_Rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/justbytecode/bitcoin_like_chain_Rust on toolchain e3607d549209cc9fdfe7e907123b4185210e2c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/justbytecode/bitcoin_like_chain_Rust 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" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `blockchain_rust` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-2-tc2/source/target/.../blockchain_rust
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `blockchain-rust`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 - name = "blockchain_rust"
[INFO] [stderr] 21 + name = "blockchain-rust"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `blockchain-rust`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:22:19
[INFO] [stderr]    |
[INFO] [stderr] 22 ~ version = "0.1.0"
[INFO] [stderr] 23 + [[bin]]
[INFO] [stderr] 24 + name = "blockchain-rust"
[INFO] [stderr] 25 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `blockchain_rust` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitcoincash-addr v0.5.2
[INFO] [stderr]   Downloaded merkle-cbt v0.3.2
[INFO] [stderr]   Downloaded bitcoin_hashes v0.7.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5f627ef0a660e5bc5798191bd112d8d28dfff69ad18cb92b822496f0841ab538
[INFO] running `Command { std: "docker" "start" "5f627ef0a660e5bc5798191bd112d8d28dfff69ad18cb92b822496f0841ab538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f627ef0a660e5bc5798191bd112d8d28dfff69ad18cb92b822496f0841ab538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5f627ef0a660e5bc5798191bd112d8d28dfff69ad18cb92b822496f0841ab538" "/opt/rustwide/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f627ef0a660e5bc5798191bd112d8d28dfff69ad18cb92b822496f0841ab538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5f627ef0a660e5bc5798191bd112d8d28dfff69ad18cb92b822496f0841ab538" "/opt/rustwide/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: binary `blockchain_rust` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /opt/rustwide/target/.../blockchain_rust
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `blockchain-rust`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 - name = "blockchain_rust"
[INFO] [stderr] 21 + name = "blockchain-rust"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `blockchain-rust`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:22:19
[INFO] [stderr]    |
[INFO] [stderr] 22 ~ version = "0.1.0"
[INFO] [stderr] 23 + [[bin]]
[INFO] [stderr] 24 + name = "blockchain-rust"
[INFO] [stderr] 25 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `blockchain_rust` (manifest) generated 1 warning
[INFO] [stderr]    Compiling cc v1.1.7
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking gimli v0.29.0
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking miniz_oxide v0.7.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking object v0.36.2
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling serde_json v1.0.122
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking clap_builder v4.5.13
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling backtrace v0.3.73
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking bitcoin_hashes v0.7.6
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking addr2line v0.22.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking clap v4.5.13
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]     Checking sled v0.34.7
[INFO] [stderr]     Checking merkle-cbt v0.3.2
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking bitcoincash-addr v0.5.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking serde v1.0.204
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking blockchain_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sled::transaction`
[INFO] [stdout]  --> src/blockchain.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: `bitcoincash_addr::Address`
[INFO] [stdout]  --> src/cli.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bitcoincash_addr::Address;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::block::Block`
[INFO] [stdout]  --> src/cli.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::block::Block;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/transaction.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `clap::error`
[INFO] [stdout]  --> src/transaction.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use clap::error;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `failure::format_err`
[INFO] [stdout]  --> src/transaction.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use failure::format_err;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sled::transaction`
[INFO] [stdout]  --> src/transaction.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sled::transaction;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sled::transaction`
[INFO] [stdout]  --> src/blockchain.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: `bitcoincash_addr::Address`
[INFO] [stdout]  --> src/cli.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bitcoincash_addr::Address;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::block::Block`
[INFO] [stdout]  --> src/cli.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::block::Block;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/transaction.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `clap::error`
[INFO] [stdout]  --> src/transaction.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use clap::error;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `failure::format_err`
[INFO] [stdout]  --> src/transaction.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use failure::format_err;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sled::transaction`
[INFO] [stdout]  --> src/transaction.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sled::transaction;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/blockchain.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let mut b = Blockchain::new().unwrap();
[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:100:17
[INFO] [stdout]     |
[INFO] [stdout] 100 |             let mut ws = Wallets::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/cli.rs:100:17
[INFO] [stdout]     |
[INFO] [stdout] 100 |             let mut ws = Wallets::new()?;
[INFO] [stdout]     |                 ----^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Blockchain` is never constructed
[INFO] [stdout]   --> src/block.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Blockchain{
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockchain.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |     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] 65 |     pub fn iter(&self) -> BlockchainIter<'_>{
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `spent_TXOs` should have a snake case name
[INFO] [stdout]   --> src/blockchain.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |         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: struct `Blockchain` is never constructed
[INFO] [stdout]   --> src/block.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Blockchain{
[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 `unspent_TXs` should have a snake case name
[INFO] [stdout]   --> src/blockchain.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut unspent_TXs: Vec<Transaction> = Vec::new();
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `unspent_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_UTXO` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn find_UTXO(&self, address: &str) -> Vec<TXOutput> {
[INFO] [stdout]     |            ^^^^^^^^^ help: convert the identifier to snake case: `find_utxo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `unspent_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let unspent_TXs = self.find_unspent_transactions(address);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: convert the identifier to snake case: `unspent_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `unspent_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let unspent_TXs = self.find_unspent_transactions(address);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: convert the identifier to snake case: `unspent_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockchain.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |     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] 65 |     pub fn iter(&self) -> BlockchainIter<'_>{
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `spent_TXOs` should have a snake case name
[INFO] [stdout]   --> src/blockchain.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |         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 `unspent_TXs` should have a snake case name
[INFO] [stdout]   --> src/blockchain.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut unspent_TXs: Vec<Transaction> = Vec::new();
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `unspent_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_UTXO` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn find_UTXO(&self, address: &str) -> Vec<TXOutput> {
[INFO] [stdout]     |            ^^^^^^^^^ help: convert the identifier to snake case: `find_utxo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `unspent_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let unspent_TXs = self.find_unspent_transactions(address);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: convert the identifier to snake case: `unspent_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `unspent_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let unspent_TXs = self.find_unspent_transactions(address);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: convert the identifier to snake case: `unspent_txs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `new_UTXO` should have a snake case name
[INFO] [stdout]   --> src/transaction.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new_UTXO(from: &str, to: &str, amount: i32, bc: &Blockchain) -> Result<Transaction> {
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case: `new_utxo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `new_UTXO` should have a snake case name
[INFO] [stdout]   --> src/transaction.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new_UTXO(from: &str, to: &str, amount: i32, bc: &Blockchain) -> Result<Transaction> {
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case: `new_utxo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `env_logger`
[INFO] [stderr]  --> Cargo.toml:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | env_logger = "0.10.0"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `env_logger`
[INFO] [stderr] warning: unused dependency `merkle-cbt`
[INFO] [stderr]  --> Cargo.toml:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | merkle-cbt = "0.3.2"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider removing the dependency on `merkle-cbt`
[INFO] [stderr] warning: unused dependency `serde_json`
[INFO] [stderr]   --> Cargo.toml:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | serde_json = "1.0"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `serde_json`
[INFO] [stderr] warning: unused dependency `sha2`
[INFO] [stderr]   --> Cargo.toml:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | sha2 = "0.10.6"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `sha2`
[INFO] [stderr] warning: `blockchain_rust` (manifest) generated 4 warnings
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.83s
[INFO] running `Command { std: "docker" "inspect" "5f627ef0a660e5bc5798191bd112d8d28dfff69ad18cb92b822496f0841ab538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f627ef0a660e5bc5798191bd112d8d28dfff69ad18cb92b822496f0841ab538", kill_on_drop: false }`
[INFO] [stdout] 5f627ef0a660e5bc5798191bd112d8d28dfff69ad18cb92b822496f0841ab538
