[INFO] cloning repository https://github.com/ivanrad10/rust-blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ivanrad10/rust-blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivanrad10%2Frust-blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivanrad10%2Frust-blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a13fa7746dc3bf0e69786392830afa03a045bd26
[INFO] testing ivanrad10/rust-blockchain against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivanrad10%2Frust-blockchain" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ivanrad10/rust-blockchain
[INFO] finished tweaking git repo https://github.com/ivanrad10/rust-blockchain
[INFO] tweaked toml for git repo https://github.com/ivanrad10/rust-blockchain written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ivanrad10/rust-blockchain on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ivanrad10/rust-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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded merkle-cbt v0.3.2
[INFO] [stderr]   Downloaded rustc-serialize v0.3.25
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[INFO] [stdout] afb74777a67f986a05bf189f67f88fdd6fc3a993ba1843dab5f257dc228a2a3e
[INFO] running `Command { std: "docker" "start" "-a" "afb74777a67f986a05bf189f67f88fdd6fc3a993ba1843dab5f257dc228a2a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afb74777a67f986a05bf189f67f88fdd6fc3a993ba1843dab5f257dc228a2a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afb74777a67f986a05bf189f67f88fdd6fc3a993ba1843dab5f257dc228a2a3e", kill_on_drop: false }`
[INFO] [stdout] afb74777a67f986a05bf189f67f88fdd6fc3a993ba1843dab5f257dc228a2a3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad651ce38f3a80967a5a196e02118877914287bcfc0b9ef6a61a7716b6e96f27
[INFO] running `Command { std: "docker" "start" "-a" "ad651ce38f3a80967a5a196e02118877914287bcfc0b9ef6a61a7716b6e96f27", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.15
[INFO] [stderr]    Compiling bitcoin-internals v0.2.0
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling secp256k1-sys v0.9.2
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling gimli v0.31.1
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling miniz_oxide v0.8.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling serde_json v1.0.137
[INFO] [stderr]    Compiling hex-conservative v0.1.2
[INFO] [stderr]    Compiling clap_builder v4.5.27
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling bitcoin_hashes v0.13.0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling bitcoin_hashes v0.7.6
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling sled v0.34.7
[INFO] [stderr]    Compiling merkle-cbt v0.3.2
[INFO] [stderr]    Compiling clap v4.5.27
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling env_filter v0.1.3
[INFO] [stderr]    Compiling env_logger v0.11.6
[INFO] [stderr]    Compiling addr2line v0.24.2
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling bitcoincash-addr v0.5.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling secp256k1 v0.28.2
[INFO] [stderr]    Compiling backtrace v0.3.74
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling rust-blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `vec`
[INFO] [stdout]  --> src/block.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{time::SystemTime, vec};
[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: `clap::builder::Str`
[INFO] [stdout]  --> src/block.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use clap::builder::Str;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::null`
[INFO] [stdout]  --> src/blockchain.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ptr::null;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/blockchain.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 21 |             utxo_pool: Arc::new((Mutex::new((HashMap::new()))))
[INFO] [stdout]    |                                 ^                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -             utxo_pool: Arc::new((Mutex::new((HashMap::new()))))
[INFO] [stdout] 21 +             utxo_pool: Arc::new(Mutex::new((HashMap::new())) )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/blockchain.rs:21:45
[INFO] [stdout]    |
[INFO] [stdout] 21 |             utxo_pool: Arc::new((Mutex::new((HashMap::new()))))
[INFO] [stdout]    |                                             ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -             utxo_pool: Arc::new((Mutex::new((HashMap::new()))))
[INFO] [stdout] 21 +             utxo_pool: Arc::new((Mutex::new(HashMap::new() )))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::block::Block`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::block::Block;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]   --> src/block.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Block {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     height: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `utxo_pool` is never read
[INFO] [stdout]   --> src/blockchain.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Blockchain {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 13 |     blocks: Vec<Block>,
[INFO] [stdout] 14 |     utxo_pool: Arc<Mutex<HashMap<String, Vec<UTXO>>>>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Blockchain` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `initiate_tx` is never used
[INFO] [stdout]   --> src/blockchain.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Blockchain {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn initiate_tx(&self, from: String, to: String, amount: u64) -> Option<Transaction> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mempool` is never constructed
[INFO] [stdout]  --> src/mempool.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Mempool {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Miner` is never constructed
[INFO] [stdout]  --> src/miner.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Miner {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Transaction` is never constructed
[INFO] [stdout]   --> src/transaction.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Transaction {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Wallet` is never constructed
[INFO] [stdout]  --> src/wallet.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Wallet {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_public_key`, and `sign_transaction` are never used
[INFO] [stdout]   --> src/wallet.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Wallet {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 12 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn get_public_key(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn sign_transaction(&self, tx_data: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `minerId` should have a snake case name
[INFO] [stdout]  --> src/mempool.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     minerId: u64,
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to snake case: `miner_id`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.00s
[INFO] running `Command { std: "docker" "inspect" "ad651ce38f3a80967a5a196e02118877914287bcfc0b9ef6a61a7716b6e96f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad651ce38f3a80967a5a196e02118877914287bcfc0b9ef6a61a7716b6e96f27", kill_on_drop: false }`
[INFO] [stdout] ad651ce38f3a80967a5a196e02118877914287bcfc0b9ef6a61a7716b6e96f27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d411b67efb75228a0692d45bf299ae4d11990a81d7f22b7fef5d814355446e5a
[INFO] running `Command { std: "docker" "start" "-a" "d411b67efb75228a0692d45bf299ae4d11990a81d7f22b7fef5d814355446e5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `vec`
[INFO] [stdout]  --> src/block.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{time::SystemTime, vec};
[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: `clap::builder::Str`
[INFO] [stdout]  --> src/block.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use clap::builder::Str;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::null`
[INFO] [stdout]  --> src/blockchain.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ptr::null;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/blockchain.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 21 |             utxo_pool: Arc::new((Mutex::new((HashMap::new()))))
[INFO] [stdout]    |                                 ^                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -             utxo_pool: Arc::new((Mutex::new((HashMap::new()))))
[INFO] [stdout] 21 +             utxo_pool: Arc::new(Mutex::new((HashMap::new())) )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/blockchain.rs:21:45
[INFO] [stdout]    |
[INFO] [stdout] 21 |             utxo_pool: Arc::new((Mutex::new((HashMap::new()))))
[INFO] [stdout]    |                                             ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -             utxo_pool: Arc::new((Mutex::new((HashMap::new()))))
[INFO] [stdout] 21 +             utxo_pool: Arc::new((Mutex::new(HashMap::new() )))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::block::Block`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::block::Block;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]   --> src/block.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Block {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     height: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `utxo_pool` is never read
[INFO] [stdout]   --> src/blockchain.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Blockchain {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 13 |     blocks: Vec<Block>,
[INFO] [stdout] 14 |     utxo_pool: Arc<Mutex<HashMap<String, Vec<UTXO>>>>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Blockchain` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `initiate_tx` is never used
[INFO] [stdout]   --> src/blockchain.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Blockchain {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn initiate_tx(&self, from: String, to: String, amount: u64) -> Option<Transaction> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mempool` is never constructed
[INFO] [stdout]  --> src/mempool.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Mempool {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Miner` is never constructed
[INFO] [stdout]  --> src/miner.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Miner {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Transaction` is never constructed
[INFO] [stdout]   --> src/transaction.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Transaction {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Wallet` is never constructed
[INFO] [stdout]  --> src/wallet.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Wallet {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_public_key`, and `sign_transaction` are never used
[INFO] [stdout]   --> src/wallet.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Wallet {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 12 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn get_public_key(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn sign_transaction(&self, tx_data: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/blockchain.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         b.add_block("data1".to_string());
[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] 100 |         let _ = b.add_block("data1".to_string());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/blockchain.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |         b.add_block("data2".to_string());
[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] 101 |         let _ = b.add_block("data2".to_string());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/blockchain.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |         b.add_block("data3".to_string());
[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] 102 |         let _ = b.add_block("data3".to_string());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `minerId` should have a snake case name
[INFO] [stdout]  --> src/mempool.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     minerId: u64,
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to snake case: `miner_id`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "d411b67efb75228a0692d45bf299ae4d11990a81d7f22b7fef5d814355446e5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d411b67efb75228a0692d45bf299ae4d11990a81d7f22b7fef5d814355446e5a", kill_on_drop: false }`
[INFO] [stdout] d411b67efb75228a0692d45bf299ae4d11990a81d7f22b7fef5d814355446e5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 16fdcb9f2c3ffa0cc7df408a46df8dfccbb6f523fb6e7c779012ca60281ab019
[INFO] running `Command { std: "docker" "start" "-a" "16fdcb9f2c3ffa0cc7df408a46df8dfccbb6f523fb6e7c779012ca60281ab019", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `vec`
[INFO] [stderr]  --> src/block.rs:1:29
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{time::SystemTime, vec};
[INFO] [stderr]   |                             ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `clap::builder::Str`
[INFO] [stderr]  --> src/block.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use clap::builder::Str;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr::null`
[INFO] [stderr]  --> src/blockchain.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ptr::null;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/blockchain.rs:21:33
[INFO] [stderr]    |
[INFO] [stderr] 21 |             utxo_pool: Arc::new((Mutex::new((HashMap::new()))))
[INFO] [stderr]    |                                 ^                            ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 21 -             utxo_pool: Arc::new((Mutex::new((HashMap::new()))))
[INFO] [stderr] 21 +             utxo_pool: Arc::new(Mutex::new((HashMap::new())) )
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/blockchain.rs:21:45
[INFO] [stderr]    |
[INFO] [stderr] 21 |             utxo_pool: Arc::new((Mutex::new((HashMap::new()))))
[INFO] [stderr]    |                                             ^              ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 21 -             utxo_pool: Arc::new((Mutex::new((HashMap::new()))))
[INFO] [stderr] 21 +             utxo_pool: Arc::new((Mutex::new(HashMap::new() )))
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::block::Block`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::block::Block;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `height` is never read
[INFO] [stderr]   --> src/block.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Block {
[INFO] [stderr]    |            ----- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 16 |     height: usize,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Block` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `utxo_pool` is never read
[INFO] [stderr]   --> src/blockchain.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct Blockchain {
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] 13 |     blocks: Vec<Block>,
[INFO] [stderr] 14 |     utxo_pool: Arc<Mutex<HashMap<String, Vec<UTXO>>>>,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Blockchain` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `initiate_tx` is never used
[INFO] [stderr]   --> src/blockchain.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl Blockchain {
[INFO] [stderr]    | --------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 32 |     pub fn initiate_tx(&self, from: String, to: String, amount: u64) -> Option<Transaction> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Mempool` is never constructed
[INFO] [stderr]  --> src/mempool.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Mempool {
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Miner` is never constructed
[INFO] [stderr]  --> src/miner.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Miner {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Transaction` is never constructed
[INFO] [stderr]   --> src/transaction.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Transaction {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Wallet` is never constructed
[INFO] [stderr]  --> src/wallet.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Wallet {
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `get_public_key`, and `sign_transaction` are never used
[INFO] [stderr]   --> src/wallet.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl Wallet {
[INFO] [stderr]    | ----------- associated items in this implementation
[INFO] [stderr] 12 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 |     pub fn get_public_key(&self) -> String {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 29 |     fn sign_transaction(&self, tx_data: &str) -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/blockchain.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |         b.add_block("data1".to_string());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 100 |         let _ = b.add_block("data1".to_string());
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/blockchain.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         b.add_block("data2".to_string());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let _ = b.add_block("data2".to_string());
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/blockchain.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 |         b.add_block("data3".to_string());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let _ = b.add_block("data3".to_string());
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `minerId` should have a snake case name
[INFO] [stderr]  --> src/mempool.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     minerId: u64,
[INFO] [stderr]   |     ^^^^^^^ help: convert the identifier to snake case: `miner_id`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-blockchain` (bin "rust-blockchain" test) generated 18 warnings (run `cargo fix --bin "rust-blockchain" -p rust-blockchain --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_blockchain-0b2aa72dccbdd6a6)
[INFO] [stdout] running 1 test
[INFO] [stdout] test blockchain::tests::test_blockchain ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.53s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "16fdcb9f2c3ffa0cc7df408a46df8dfccbb6f523fb6e7c779012ca60281ab019", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16fdcb9f2c3ffa0cc7df408a46df8dfccbb6f523fb6e7c779012ca60281ab019", kill_on_drop: false }`
[INFO] [stdout] 16fdcb9f2c3ffa0cc7df408a46df8dfccbb6f523fb6e7c779012ca60281ab019
