[INFO] cloning repository https://github.com/kunal1purohit/Rust_Custom_Blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kunal1purohit/Rust_Custom_Blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunal1purohit%2FRust_Custom_Blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunal1purohit%2FRust_Custom_Blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0d07005415e806878b4e9c524c4c471f347c042c
[INFO] testing kunal1purohit/Rust_Custom_Blockchain against nightly-2025-01-18 for randomize-layout-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunal1purohit%2FRust_Custom_Blockchain" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kunal1purohit/Rust_Custom_Blockchain on toolchain nightly-2025-01-18
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kunal1purohit/Rust_Custom_Blockchain
[INFO] finished tweaking git repo https://github.com/kunal1purohit/Rust_Custom_Blockchain
[INFO] tweaked toml for git repo https://github.com/kunal1purohit/Rust_Custom_Blockchain written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kunal1purohit/Rust_Custom_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" "+nightly-2025-01-18" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]   Downloaded rustc-serialize v0.3.25
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `tx::TXOutput`
[INFO] [stdout]  --> src/blockchain.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::{tx::TXOutput, transaction::Transaction};
[INFO] [stdout]   |             ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `blockchain::Blockchain`
[INFO] [stdout]  --> src/transaction.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::{blockchain::Blockchain, error::Result};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/transaction.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |         if(acc_v.0 < amount){
[INFO] [stdout]    |           ^                ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 45 -         if(acc_v.0 < amount){
[INFO] [stdout] 45 +         if acc_v.0 < amount {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/tx.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bincode::serialize`
[INFO] [stdout]  --> src/utxoset.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bincode::serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/cli.rs:58:25
[INFO] [stdout]    |
[INFO] [stdout] 58 |         if let Some(ref matches) = matches.subcommand_matches("createwallet"){
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/cli.rs:74:25
[INFO] [stdout]    |
[INFO] [stdout] 74 |         if let Some(ref matches) = matches.subcommand_matches("listaddresses"){
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cli.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut ws = Wallets::new()?;
[INFO] [stdout]    |                 ----^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/utxoset.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 |         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: methods `find_unspent_transactions` and `verify_transaction` are never used
[INFO] [stdout]    --> src/blockchain.rs:59:8
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Blockchain{
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59  |     fn find_unspent_transactions(&self, address:&[u8]) -> Vec<Transaction>{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     pub fn verify_transaction(&self , tx: &mut Transaction)->Result<bool>{
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `verify` is never used
[INFO] [stdout]    --> src/transaction.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Transaction{
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 119 |     pub fn verify(
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_unlock_output_with` is never used
[INFO] [stdout]   --> src/tx.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl TXInput{
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 31 |     //checks whether the address initiated with the transaction
[INFO] [stdout] 32 |     pub fn can_unlock_output_with(&self,unlocking_data:&[u8])->bool{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_UTXO` should have a snake case name
[INFO] [stdout]   --> src/blockchain.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn find_UTXO(&self
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to snake case: `find_utxo`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn get_prev_TXs(&self , tx:&Transaction)->Result<HashMap<String , Transaction>>{
[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:167:17
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let mut prev_TXs = HashMap::new();
[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/blockchain.rs:169:17
[INFO] [stdout]     |
[INFO] [stdout] 169 |             let prev_TX = self.find_transaction(&vin.txid)?;
[INFO] [stdout]     |                 ^^^^^^^ help: convert the identifier to snake case: `prev_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:176:13
[INFO] [stdout]     |
[INFO] [stdout] 176 |         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:182:13
[INFO] [stdout]     |
[INFO] [stdout] 182 |         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: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cli.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |             utxo_set.update(&new_block);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 140 |             let _ = utxo_set.update(&new_block);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `new_UTXO` should have a snake case name
[INFO] [stdout]   --> src/transaction.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn new_UTXO(from:&str , to:&str , amount:i32 , bc:&UTXOSet)->Result<Transaction>{
[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:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         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_Tx` should have a snake case name
[INFO] [stdout]    --> src/transaction.rs:135:17
[INFO] [stdout]     |
[INFO] [stdout] 135 |             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: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/transaction.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         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_Tx` should have a snake case name
[INFO] [stdout]    --> src/transaction.rs:172:17
[INFO] [stdout]     |
[INFO] [stdout] 172 |             let prev_Tx = prev_TXs.get(&tx_copy.vin[in_id].txid).unwrap();
[INFO] [stdout]     |                 ^^^^^^^ help: convert the identifier to snake case: `prev_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/tx.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         txo.lock(&address);
[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] 59 |         let _ = txo.lock(&address);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_UTXO` should have a snake case name
[INFO] [stdout]    --> src/utxoset.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn find_UTXO(&self , pub_key_hash:&[u8]) -> Result<TXOutputs>{
[INFO] [stdout]     |            ^^^^^^^^^ help: convert the identifier to snake case: `find_utxo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 51.62s
[INFO] running `Command { std: "docker" "inspect" "cca842c9c10447990a22e07a243b306e29ce8c18ac87d63367a7f44a04fee755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cca842c9c10447990a22e07a243b306e29ce8c18ac87d63367a7f44a04fee755", kill_on_drop: false }`
[INFO] [stdout] cca842c9c10447990a22e07a243b306e29ce8c18ac87d63367a7f44a04fee755
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 355022daca4e313ba1ac902f14fffa57b43681e3493430a7fab3c9680559ad15
[INFO] running `Command { std: "docker" "start" "-a" "355022daca4e313ba1ac902f14fffa57b43681e3493430a7fab3c9680559ad15", kill_on_drop: false }`
[INFO] [stderr]    Compiling custom-chain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `tx::TXOutput`
[INFO] [stdout]  --> src/blockchain.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::{tx::TXOutput, transaction::Transaction};
[INFO] [stdout]   |             ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `blockchain::Blockchain`
[INFO] [stdout]  --> src/transaction.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::{blockchain::Blockchain, error::Result};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/transaction.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |         if(acc_v.0 < amount){
[INFO] [stdout]    |           ^                ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 45 -         if(acc_v.0 < amount){
[INFO] [stdout] 45 +         if acc_v.0 < amount {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/tx.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bincode::serialize`
[INFO] [stdout]  --> src/utxoset.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bincode::serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/blockchain.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let mut b = Blockchain::new().unwrap();
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/cli.rs:58:25
[INFO] [stdout]    |
[INFO] [stdout] 58 |         if let Some(ref matches) = matches.subcommand_matches("createwallet"){
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/cli.rs:74:25
[INFO] [stdout]    |
[INFO] [stdout] 74 |         if let Some(ref matches) = matches.subcommand_matches("listaddresses"){
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cli.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut ws = Wallets::new()?;
[INFO] [stdout]    |                 ----^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/utxoset.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 |         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: methods `find_unspent_transactions` and `verify_transaction` are never used
[INFO] [stdout]    --> src/blockchain.rs:59:8
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Blockchain{
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59  |     fn find_unspent_transactions(&self, address:&[u8]) -> Vec<Transaction>{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     pub fn verify_transaction(&self , tx: &mut Transaction)->Result<bool>{
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `verify` is never used
[INFO] [stdout]    --> src/transaction.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Transaction{
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 119 |     pub fn verify(
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_unlock_output_with` is never used
[INFO] [stdout]   --> src/tx.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl TXInput{
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 31 |     //checks whether the address initiated with the transaction
[INFO] [stdout] 32 |     pub fn can_unlock_output_with(&self,unlocking_data:&[u8])->bool{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_UTXO` should have a snake case name
[INFO] [stdout]   --> src/blockchain.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn find_UTXO(&self
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to snake case: `find_utxo`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn get_prev_TXs(&self , tx:&Transaction)->Result<HashMap<String , Transaction>>{
[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:167:17
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let mut prev_TXs = HashMap::new();
[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/blockchain.rs:169:17
[INFO] [stdout]     |
[INFO] [stdout] 169 |             let prev_TX = self.find_transaction(&vin.txid)?;
[INFO] [stdout]     |                 ^^^^^^^ help: convert the identifier to snake case: `prev_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/blockchain.rs:176:13
[INFO] [stdout]     |
[INFO] [stdout] 176 |         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:182:13
[INFO] [stdout]     |
[INFO] [stdout] 182 |         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: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cli.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |             utxo_set.update(&new_block);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 140 |             let _ = utxo_set.update(&new_block);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `new_UTXO` should have a snake case name
[INFO] [stdout]   --> src/transaction.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn new_UTXO(from:&str , to:&str , amount:i32 , bc:&UTXOSet)->Result<Transaction>{
[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:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         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_Tx` should have a snake case name
[INFO] [stdout]    --> src/transaction.rs:135:17
[INFO] [stdout]     |
[INFO] [stdout] 135 |             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: variable `prev_TXs` should have a snake case name
[INFO] [stdout]    --> src/transaction.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         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_Tx` should have a snake case name
[INFO] [stdout]    --> src/transaction.rs:172:17
[INFO] [stdout]     |
[INFO] [stdout] 172 |             let prev_Tx = prev_TXs.get(&tx_copy.vin[in_id].txid).unwrap();
[INFO] [stdout]     |                 ^^^^^^^ help: convert the identifier to snake case: `prev_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/tx.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         txo.lock(&address);
[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] 59 |         let _ = txo.lock(&address);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_UTXO` should have a snake case name
[INFO] [stdout]    --> src/utxoset.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn find_UTXO(&self , pub_key_hash:&[u8]) -> Result<TXOutputs>{
[INFO] [stdout]     |            ^^^^^^^^^ help: convert the identifier to snake case: `find_utxo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "355022daca4e313ba1ac902f14fffa57b43681e3493430a7fab3c9680559ad15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "355022daca4e313ba1ac902f14fffa57b43681e3493430a7fab3c9680559ad15", kill_on_drop: false }`
[INFO] [stdout] 355022daca4e313ba1ac902f14fffa57b43681e3493430a7fab3c9680559ad15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c65d5dfc419c075c27aece07fe53f03338572c7f1619295def53ebba973bccb7
[INFO] running `Command { std: "docker" "start" "-a" "c65d5dfc419c075c27aece07fe53f03338572c7f1619295def53ebba973bccb7", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `tx::TXOutput`
[INFO] [stderr]  --> src/blockchain.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::{tx::TXOutput, transaction::Transaction};
[INFO] [stderr]   |             ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `blockchain::Blockchain`
[INFO] [stderr]  --> src/transaction.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::{blockchain::Blockchain, error::Result};
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/transaction.rs:45:11
[INFO] [stderr]    |
[INFO] [stderr] 45 |         if(acc_v.0 < amount){
[INFO] [stderr]    |           ^                ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 45 -         if(acc_v.0 < amount){
[INFO] [stderr] 45 +         if acc_v.0 < amount {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/tx.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `bincode::serialize`
[INFO] [stderr]  --> src/utxoset.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use bincode::serialize;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/blockchain.rs:215:13
[INFO] [stderr]     |
[INFO] [stderr] 215 |         let mut b = Blockchain::new().unwrap();
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/cli.rs:58:25
[INFO] [stderr]    |
[INFO] [stderr] 58 |         if let Some(ref matches) = matches.subcommand_matches("createwallet"){
[INFO] [stderr]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/cli.rs:74:25
[INFO] [stderr]    |
[INFO] [stderr] 74 |         if let Some(ref matches) = matches.subcommand_matches("listaddresses"){
[INFO] [stderr]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cli.rs:75:17
[INFO] [stderr]    |
[INFO] [stderr] 75 |             let mut ws = Wallets::new()?;
[INFO] [stderr]    |                 ----^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/utxoset.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 |         if let Err(e) = std::fs::remove_dir_all("data/utxos"){
[INFO] [stderr]    |                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: methods `find_unspent_transactions` and `verify_transaction` are never used
[INFO] [stderr]    --> src/blockchain.rs:59:8
[INFO] [stderr]     |
[INFO] [stderr] 24  | impl Blockchain{
[INFO] [stderr]     | --------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 59  |     fn find_unspent_transactions(&self, address:&[u8]) -> Vec<Transaction>{
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 181 |     pub fn verify_transaction(&self , tx: &mut Transaction)->Result<bool>{
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `verify` is never used
[INFO] [stderr]    --> src/transaction.rs:119:12
[INFO] [stderr]     |
[INFO] [stderr] 24  | impl Transaction{
[INFO] [stderr]     | ---------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 119 |     pub fn verify(
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `can_unlock_output_with` is never used
[INFO] [stderr]   --> src/tx.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 30 | impl TXInput{
[INFO] [stderr]    | ------------ method in this implementation
[INFO] [stderr] 31 |     //checks whether the address initiated with the transaction
[INFO] [stderr] 32 |     pub fn can_unlock_output_with(&self,unlocking_data:&[u8])->bool{
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `find_UTXO` should have a snake case name
[INFO] [stderr]   --> src/blockchain.rs:96:12
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn find_UTXO(&self
[INFO] [stderr]    |            ^^^^^^^^^ help: convert the identifier to snake case: `find_utxo`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_prev_TXs` should have a snake case name
[INFO] [stderr]    --> src/blockchain.rs:166:8
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn get_prev_TXs(&self , tx:&Transaction)->Result<HashMap<String , Transaction>>{
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `get_prev_txs`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `prev_TXs` should have a snake case name
[INFO] [stderr]    --> src/blockchain.rs:167:17
[INFO] [stderr]     |
[INFO] [stderr] 167 |         let mut prev_TXs = HashMap::new();
[INFO] [stderr]     |                 ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `prev_TX` should have a snake case name
[INFO] [stderr]    --> src/blockchain.rs:169:17
[INFO] [stderr]     |
[INFO] [stderr] 169 |             let prev_TX = self.find_transaction(&vin.txid)?;
[INFO] [stderr]     |                 ^^^^^^^ help: convert the identifier to snake case: `prev_tx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `prev_TXs` should have a snake case name
[INFO] [stderr]    --> src/blockchain.rs:176:13
[INFO] [stderr]     |
[INFO] [stderr] 176 |         let prev_TXs = self.get_prev_TXs(tx)?;
[INFO] [stderr]     |             ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `prev_TXs` should have a snake case name
[INFO] [stderr]    --> src/blockchain.rs:182:13
[INFO] [stderr]     |
[INFO] [stderr] 182 |         let prev_TXs = self.get_prev_TXs(tx)?;
[INFO] [stderr]     |             ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cli.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |             utxo_set.update(&new_block);
[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)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 140 |             let _ = utxo_set.update(&new_block);
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: method `new_UTXO` should have a snake case name
[INFO] [stderr]   --> src/transaction.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn new_UTXO(from:&str , to:&str , amount:i32 , bc:&UTXOSet)->Result<Transaction>{
[INFO] [stderr]    |            ^^^^^^^^ help: convert the identifier to snake case: `new_utxo`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `prev_TXs` should have a snake case name
[INFO] [stderr]    --> src/transaction.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |         prev_TXs: HashMap<String,Transaction>
[INFO] [stderr]     |         ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `prev_Tx` should have a snake case name
[INFO] [stderr]    --> src/transaction.rs:135:17
[INFO] [stderr]     |
[INFO] [stderr] 135 |             let prev_Tx = prev_TXs.get(&self.vin[in_id].txid).unwrap();
[INFO] [stderr]     |                 ^^^^^^^ help: convert the identifier to snake case: `prev_tx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `prev_TXs` should have a snake case name
[INFO] [stderr]    --> src/transaction.rs:159:9
[INFO] [stderr]     |
[INFO] [stderr] 159 |         prev_TXs: HashMap<String,Transaction>
[INFO] [stderr]     |         ^^^^^^^^ help: convert the identifier to snake case: `prev_txs`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `prev_Tx` should have a snake case name
[INFO] [stderr]    --> src/transaction.rs:172:17
[INFO] [stderr]     |
[INFO] [stderr] 172 |             let prev_Tx = prev_TXs.get(&tx_copy.vin[in_id].txid).unwrap();
[INFO] [stderr]     |                 ^^^^^^^ help: convert the identifier to snake case: `prev_tx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/tx.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |         txo.lock(&address);
[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] 59 |         let _ = txo.lock(&address);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: method `find_UTXO` should have a snake case name
[INFO] [stderr]    --> src/utxoset.rs:110:12
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn find_UTXO(&self , pub_key_hash:&[u8]) -> Result<TXOutputs>{
[INFO] [stderr]     |            ^^^^^^^^^ help: convert the identifier to snake case: `find_utxo`
[INFO] [stderr] 
[INFO] [stderr] warning: `custom-chain` (bin "custom-chain" test) generated 27 warnings (run `cargo fix --bin "custom-chain" --tests` to apply 7 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/custom_chain-16c3b78d72519e71)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test blockchain::tests::test_add_block ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- blockchain::tests::test_add_block stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'blockchain::tests::test_add_block' panicked at src/blockchain.rs:215:39:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Io(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] [stdout] 
[INFO] [stdout]    0: failure::backtrace::internal::InternalBacktrace::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/backtrace/internal.rs:46:44
[INFO] [stdout]    1: failure::backtrace::Backtrace::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/backtrace/mod.rs:121:35
[INFO] [stdout]    2: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/error/error_impl.rs:19:17
[INFO] [stdout]    3: <failure::error::Error as core::convert::From<F>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/failure-0.1.8/src/error/mod.rs:36:18
[INFO] [stdout]    4: <core::result::Result<T,F> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible,E>>>::from_residual
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/result.rs:2014:27
[INFO] [stdout]    5: custom_chain::blockchain::Blockchain::new
[INFO] [stdout]              at /opt/rustwide/workdir/src/blockchain.rs:27:18
[INFO] [stdout]    6: custom_chain::blockchain::tests::test_add_block
[INFO] [stdout]              at /opt/rustwide/workdir/src/blockchain.rs:215:21
[INFO] [stdout]    7: custom_chain::blockchain::tests::test_add_block::{{closure}}
[INFO] [stdout]              at /opt/rustwide/workdir/src/blockchain.rs:214:24
[INFO] [stdout]    8: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stdout]    9: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stdout]       test::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:632:18
[INFO] [stdout]   10: test::run_test_in_process::{{closure}}
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:655:60
[INFO] [stdout]       <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]       std::panicking::try::do_call
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stdout]       std::panicking::try
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stdout]       std::panic::catch_unwind
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stdout]       test::run_test_in_process
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:655:27
[INFO] [stdout]       test::run_test::{{closure}}
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:576:43
[INFO] [stdout]   11: test::run_test::{{closure}}
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:606:41
[INFO] [stdout]       std::sys::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   12: std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]       <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]       std::panicking::try::do_call
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stdout]       std::panicking::try
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stdout]       std::panic::catch_unwind
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stdout]       std::thread::Builder::spawn_unchecked_::{{closure}}
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]       core::ops::function::FnOnce::call_once{{vtable.shim}}
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   13: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2013:9
[INFO] [stdout]       <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2013:9
[INFO] [stdout]       std::sys::pal::unix::thread::Thread::new::thread_start
[INFO] [stdout]              at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/pal/unix/thread.rs:106:17
[INFO] [stdout]   14: <unknown>
[INFO] [stdout]   15: clone
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x619bd6bcc9ba - std::backtrace_rs::backtrace::libunwind::trace::hb059275cfc8d6126
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x619bd6bcc9ba - std::backtrace_rs::backtrace::trace_unsynchronized::h2da071e4327ce3ee
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x619bd6bcc9ba - std::sys::backtrace::_print_fmt::h842a1474e6f8d23f
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x619bd6bcc9ba - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h71a62eb3b9696b12
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x619bd6bf6743 - core::fmt::rt::Argument::fmt::hdb6b616786b41dc1
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x619bd6bf6743 - core::fmt::write::h2cc1698af7e2d686
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/fmt/mod.rs:1440:21
[INFO] [stdout]    6:     0x619bd6bc8af3 - std::io::Write::write_fmt::hab1b4cd059a79022
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/io/mod.rs:1887:15
[INFO] [stdout]    7:     0x619bd6bcc802 - std::sys::backtrace::BacktraceLock::print::h147fe35b4ea13b08
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x619bd6bcdddf - std::panicking::default_hook::{{closure}}::hbd44223dbdc0d208
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:298:22
[INFO] [stdout]    9:     0x619bd6bcdbf8 - std::panicking::default_hook::h20f81eb0576efcec
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:322:9
[INFO] [stdout]   10:     0x619bd6929123 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hdb53814c496a4d34
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2027:9
[INFO] [stdout]   11:     0x619bd6929123 - test::test_main::{{closure}}::hc0a4963c59427c24
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x619bd6bce8d3 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h591b2225413a77e9
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2027:9
[INFO] [stdout]   13:     0x619bd6bce8d3 - std::panicking::rust_panic_with_hook::h625eea43051b2edc
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:839:13
[INFO] [stdout]   14:     0x619bd6bce58a - std::panicking::begin_panic_handler::{{closure}}::h4f9159cfbc3f6bd3
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:704:13
[INFO] [stdout]   15:     0x619bd6bcceb9 - std::sys::backtrace::__rust_end_short_backtrace::h0390abce48353151
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   16:     0x619bd6bce21d - rust_begin_unwind
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:695:5
[INFO] [stdout]   17:     0x619bd6bf4890 - core::panicking::panic_fmt::h9e7c637e9e5f29c9
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panicking.rs:75:14
[INFO] [stdout]   18:     0x619bd6bf4d06 - core::result::unwrap_failed::h7979f09313fe1849
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/result.rs:1704:5
[INFO] [stdout]   19:     0x619bd68ee24a - core::result::Result<T,E>::unwrap::h3d8a3685803ae82d
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/result.rs:1109:23
[INFO] [stdout]   20:     0x619bd68ee24a - custom_chain::blockchain::tests::test_add_block::h1c0159267f347853
[INFO] [stdout]                                at /opt/rustwide/workdir/src/blockchain.rs:215:21
[INFO] [stdout]   21:     0x619bd68ee1b7 - custom_chain::blockchain::tests::test_add_block::{{closure}}::hd5f43989e7d3a1eb
[INFO] [stdout]                                at /opt/rustwide/workdir/src/blockchain.rs:214:24
[INFO] [stdout]   22:     0x619bd68e46d6 - core::ops::function::FnOnce::call_once::hef17f92509b6a68d
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x619bd692e87b - core::ops::function::FnOnce::call_once::he27718dfdd183f43
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x619bd692e87b - test::__rust_begin_short_backtrace::h4e84902998457a5d
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:632:18
[INFO] [stdout]   25:     0x619bd692d7b3 - test::run_test_in_process::{{closure}}::h7176fd18fc1feca0
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:655:60
[INFO] [stdout]   26:     0x619bd692d7b3 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf79cff2a624d8cf7
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x619bd692d7b3 - std::panicking::try::do_call::h3da0561d9ab99c25
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stdout]   28:     0x619bd692d7b3 - std::panicking::try::h41c9fa508bc61df6
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stdout]   29:     0x619bd692d7b3 - std::panic::catch_unwind::h6b3ff07bb5afad93
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x619bd692d7b3 - test::run_test_in_process::hc7253dd11b39b9f4
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:655:27
[INFO] [stdout]   31:     0x619bd692d7b3 - test::run_test::{{closure}}::hfb2007f8649c30bb
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:576:43
[INFO] [stdout]   32:     0x619bd68f0895 - test::run_test::{{closure}}::h56a17aa7a282a9f4
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:606:41
[INFO] [stdout]   33:     0x619bd68f0895 - std::sys::backtrace::__rust_begin_short_backtrace::hd2d2d2fb8e8c6aac
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   34:     0x619bd68f417a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h4faa3f9db6133423
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   35:     0x619bd68f417a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf2e855a36a4ea846
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x619bd68f417a - std::panicking::try::do_call::h2f73af3616c35465
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stdout]   37:     0x619bd68f417a - std::panicking::try::hd1660ce9efadef5a
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stdout]   38:     0x619bd68f417a - std::panic::catch_unwind::h5ee8d7823b8ca744
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x619bd68f417a - std::thread::Builder::spawn_unchecked_::{{closure}}::h53c3a1894dce8407
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   40:     0x619bd68f417a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h048ce291ad4f62bf
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x619bd6bd3c9b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha52bedf99a3b4981
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2013:9
[INFO] [stdout]   42:     0x619bd6bd3c9b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h567748934d80ccf8
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2013:9
[INFO] [stdout]   43:     0x619bd6bd3c9b - std::sys::pal::unix::thread::Thread::new::thread_start::h2d970728ae887adc
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/pal/unix/thread.rs:106:17
[INFO] [stdout]   44:     0x73e587676ac3 - <unknown>
[INFO] [stdout]   45:     0x73e587707a04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     blockchain::tests::test_add_block
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin custom-chain`
[INFO] running `Command { std: "docker" "inspect" "c65d5dfc419c075c27aece07fe53f03338572c7f1619295def53ebba973bccb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c65d5dfc419c075c27aece07fe53f03338572c7f1619295def53ebba973bccb7", kill_on_drop: false }`
[INFO] [stdout] c65d5dfc419c075c27aece07fe53f03338572c7f1619295def53ebba973bccb7
