[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 master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunal1purohit%2FRust_Custom_Blockchain" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[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-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kunal1purohit/Rust_Custom_Blockchain on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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_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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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/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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/cli.rs:58:21
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/cli.rs:74:21
[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: 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/blockchain.rs:148:17
[INFO] [stdout]     |
[INFO] [stdout] 148 |     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] 148 |     pub fn iter(&self) -> BlockchainIter<'_>{
[INFO] [stdout]     |                                         ++++
[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)]` (part of `#[warn(unused)]`) 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 1m 16s
[INFO] running `Command { std: "docker" "inspect" "9f26647b2ab20270d3ac124a7999d60092cea52aae7f7397ba86f9d3161b372c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f26647b2ab20270d3ac124a7999d60092cea52aae7f7397ba86f9d3161b372c", kill_on_drop: false }`
[INFO] [stdout] 9f26647b2ab20270d3ac124a7999d60092cea52aae7f7397ba86f9d3161b372c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 905193fef321ad278faaa9f1bd4deb2c3d9a23b3de096b8cebb067fd38bfd1e1
[INFO] running `Command { std: "docker" "start" "-a" "905193fef321ad278faaa9f1bd4deb2c3d9a23b3de096b8cebb067fd38bfd1e1", 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (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: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: `matches`
[INFO] [stdout]   --> src/cli.rs:58:21
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/cli.rs:74:21
[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: 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/blockchain.rs:148:17
[INFO] [stdout]     |
[INFO] [stdout] 148 |     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] 148 |     pub fn iter(&self) -> BlockchainIter<'_>{
[INFO] [stdout]     |                                         ++++
[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)]` (part of `#[warn(unused)]`) 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 1.61s
[INFO] running `Command { std: "docker" "inspect" "905193fef321ad278faaa9f1bd4deb2c3d9a23b3de096b8cebb067fd38bfd1e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "905193fef321ad278faaa9f1bd4deb2c3d9a23b3de096b8cebb067fd38bfd1e1", kill_on_drop: false }`
[INFO] [stdout] 905193fef321ad278faaa9f1bd4deb2c3d9a23b3de096b8cebb067fd38bfd1e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f90e39f190b7284a50605d599f8755d8ed143e1e8249764a101303dc96c87c40
[INFO] running `Command { std: "docker" "start" "-a" "f90e39f190b7284a50605d599f8755d8ed143e1e8249764a101303dc96c87c40", 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[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: `matches`
[INFO] [stderr]   --> src/cli.rs:58:21
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/cli.rs:74:21
[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: 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/blockchain.rs:148:17
[INFO] [stderr]     |
[INFO] [stderr] 148 |     pub fn iter(&self) -> BlockchainIter{
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 148 |     pub fn iter(&self) -> BlockchainIter<'_>{
[INFO] [stderr]     |                                         ++++
[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)]` (part of `#[warn(unused)]`) 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 28 warnings (run `cargo fix --bin "custom-chain" -p custom-chain --tests` to apply 11 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/custom_chain-5daaeb598d3ff4f7)
[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' (16) 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<sled::result::Error>>::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<sled::result::Error>>::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<custom_chain::blockchain::Blockchain, failure::error::Error> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible, sled::result::Error>>>::from_residual
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/result.rs:2189:27
[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#0}
[INFO] [stdout]              at /opt/rustwide/workdir/src/blockchain.rs:214:24
[INFO] [stdout]    8: <custom_chain::blockchain::tests::test_add_block::{closure#0} as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]    9: <fn() -> core::result::Result<(), alloc::string::String> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]       test::__rust_begin_short_backtrace::<core::result::Result<(), alloc::string::String>, fn() -> core::result::Result<(), alloc::string::String>>
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:663:18
[INFO] [stdout]   10: test::run_test_in_process::{closure#0}
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:74
[INFO] [stdout]       <core::panic::unwind_safe::AssertUnwindSafe<test::run_test_in_process::{closure#0}> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]       std::panicking::catch_unwind::do_call::<core::panic::unwind_safe::AssertUnwindSafe<test::run_test_in_process::{closure#0}>, core::result::Result<(), alloc::string::String>>
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]       std::panicking::catch_unwind::<core::result::Result<(), alloc::string::String>, core::panic::unwind_safe::AssertUnwindSafe<test::run_test_in_process::{closure#0}>>
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]       std::panic::catch_unwind::<core::panic::unwind_safe::AssertUnwindSafe<test::run_test_in_process::{closure#0}>, core::result::Result<(), alloc::string::String>>
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]       test::run_test_in_process
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:27
[INFO] [stdout]       test::run_test::{closure#0}
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:607:43
[INFO] [stdout]   11: test::run_test::{closure#1}
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:637:41
[INFO] [stdout]       std::sys::backtrace::__rust_begin_short_backtrace::<test::run_test::{closure#1}, ()>
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   12: std::thread::lifecycle::spawn_unchecked::<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]       <core::panic::unwind_safe::AssertUnwindSafe<std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]       std::panicking::catch_unwind::do_call::<core::panic::unwind_safe::AssertUnwindSafe<std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]       std::panicking::catch_unwind::<(), core::panic::unwind_safe::AssertUnwindSafe<std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]       std::panic::catch_unwind::<core::panic::unwind_safe::AssertUnwindSafe<std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]       std::thread::lifecycle::spawn_unchecked::<test::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]       <std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   13: <alloc::boxed::Box<dyn core::ops::function::FnOnce<(), Output = ()> + core::marker::Send> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]       <std::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]              at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   14: <unknown>
[INFO] [stdout]   15: clone
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5fec3a3bf632 - std[3b51380354919863]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5fec3a3bf632 - std[3b51380354919863]::backtrace_rs::backtrace::trace_unsynchronized::<std[3b51380354919863]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5fec3a3bf632 - std[3b51380354919863]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5fec3a3bf632 - <<std[3b51380354919863]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[27de1724e4349be2]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5fec3a3d5eea - <core[27de1724e4349be2]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5fec3a3d5eea - core[27de1724e4349be2]::fmt::write
[INFO] [stdout]    6:     0x5fec3a3c4846 - std[3b51380354919863]::io::default_write_fmt::<alloc[a57f19327c0ad893]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5fec3a3c4846 - <alloc[a57f19327c0ad893]::vec::Vec<u8> as std[3b51380354919863]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5fec3a39bd4f - <std[3b51380354919863]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5fec3a39bd4f - std[3b51380354919863]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5fec3a3b68c9 - std[3b51380354919863]::panicking::default_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5fec3a0ef55e - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5fec3a0ef55e - test[182b2e79ecd7bbd9]::test_main_with_exit_callback::<test[182b2e79ecd7bbd9]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5fec3a3b6a82 - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5fec3a3b6a82 - std[3b51380354919863]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5fec3a39be08 - std[3b51380354919863]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5fec3a390eb9 - std[3b51380354919863]::sys::backtrace::__rust_end_short_backtrace::<std[3b51380354919863]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5fec3a39cd1d - __rustc[d79c0ace40940972]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5fec3a3d662c - core[27de1724e4349be2]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5fec3a3d6372 - core[27de1724e4349be2]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x5fec3a0e1d7c - <core[27de1724e4349be2]::result::Result<custom_chain[bab9dde9def8af95]::blockchain::Blockchain, failure[668700e5ff2386e7]::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x5fec3a0e1d7c - custom_chain[bab9dde9def8af95]::blockchain::tests::test_add_block
[INFO] [stdout]                                at /opt/rustwide/workdir/src/blockchain.rs:215:39
[INFO] [stdout]   22:     0x5fec3a0e19e7 - custom_chain[bab9dde9def8af95]::blockchain::tests::test_add_block::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/blockchain.rs:214:24
[INFO] [stdout]   23:     0x5fec3a0dee36 - <custom_chain[bab9dde9def8af95]::blockchain::tests::test_add_block::{closure#0} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5fec3a0e390b - <fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5fec3a0e390b - test[182b2e79ecd7bbd9]::__rust_begin_short_backtrace::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5fec3a0f016a - test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5fec3a0f016a - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x5fec3a0f016a - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x5fec3a0f016a - std[3b51380354919863]::panicking::catch_unwind::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5fec3a0f016a - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5fec3a0f016a - test[182b2e79ecd7bbd9]::run_test_in_process
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5fec3a0f016a - test[182b2e79ecd7bbd9]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5fec3a0eb714 - test[182b2e79ecd7bbd9]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5fec3a0eb714 - std[3b51380354919863]::sys::backtrace::__rust_begin_short_backtrace::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5fec3a0f2c62 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x5fec3a0f2c62 - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x5fec3a0f2c62 - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x5fec3a0f2c62 - std[3b51380354919863]::panicking::catch_unwind::<(), core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5fec3a0f2c62 - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5fec3a0f2c62 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x5fec3a0f2c62 - <std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5fec3a3bee5f - <alloc[a57f19327c0ad893]::boxed::Box<dyn core[27de1724e4349be2]::ops::function::FnOnce<(), Output = ()> + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x5fec3a3bee5f - <std[3b51380354919863]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   44:     0x70b32202aaa4 - <unknown>
[INFO] [stdout]   45:     0x70b3220b7a64 - 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 0.50s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin custom-chain`
[INFO] running `Command { std: "docker" "inspect" "f90e39f190b7284a50605d599f8755d8ed143e1e8249764a101303dc96c87c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f90e39f190b7284a50605d599f8755d8ed143e1e8249764a101303dc96c87c40", kill_on_drop: false }`
[INFO] [stdout] f90e39f190b7284a50605d599f8755d8ed143e1e8249764a101303dc96c87c40
