[INFO] updating cached repository https://github.com/SwaggyCloud/ece598
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 66f50dbe71122bef85310bc76e1a79db0fc48865
[INFO] testing SwaggyCloud/ece598 against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwaggyCloud%2Fece598" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/SwaggyCloud/ece598 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/SwaggyCloud/ece598
[INFO] finished tweaking git repo https://github.com/SwaggyCloud/ece598
[INFO] tweaked toml for git repo https://github.com/SwaggyCloud/ece598 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/SwaggyCloud/ece598 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e9052658377b6dfd833ab76c81cd1bf3efa8158b4612441df0bf4cace7206d91
[INFO] running `"docker" "start" "-a" "e9052658377b6dfd833ab76c81cd1bf3efa8158b4612441df0bf4cace7206d91"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling syn v1.0.5
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[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling untrusted v0.7.0
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling termcolor v0.3.6
[INFO] [stderr]    Compiling chunked_transfer v0.3.1
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling ascii v0.8.7
[INFO] [stderr]    Compiling hex v0.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
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[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
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[INFO] [stderr]    Compiling rustc_version v0.2.3
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[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling ring v0.16.9
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling idna v0.1.5
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[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling crossbeam v0.7.2
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling url v2.1.0
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling stderrlog v0.4.1
[INFO] [stderr]    Compiling tiny_http v0.6.2
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling hex-literal-impl v0.2.1
[INFO] [stderr]    Compiling hex-literal v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling bitcoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Transaction`, `generate_rand_transaction`
[INFO] [stderr]  --> src/block.rs:3:26
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::transaction::{Transaction, generate_rand_transaction, SignedTrans};
[INFO] [stderr]   |                          ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::crypto::merkle::MerkleTree`
[INFO] [stderr]   --> src/block.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     use crate::crypto::merkle::MerkleTree;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/blockchain.rs:5:33
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Output`, `SignedTrans`
[INFO] [stderr]  --> src/blockchain.rs:6:39
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::transaction::{Transaction, SignedTrans, Output, verify};
[INFO] [stderr]   |                                       ^^^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/blockchain.rs:143:17
[INFO] [stderr]     |
[INFO] [stderr] 143 |         let p = (parent_block.clone());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around pattern
[INFO] [stderr]   --> src/crypto/merkle.rs:81:21
[INFO] [stderr]    |
[INFO] [stderr] 81 |                 let (sub_lem_val);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/miner.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `gen_rand_signtx`, `generate_rand_transaction`
[INFO] [stderr]  --> src/miner.rs:9:39
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::transaction::{Transaction, generate_rand_transaction, SignedTrans, sign, Input, Output, gen_rand_signtx};
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^                                    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::crypto::merkle::MerkleTree`
[INFO] [stderr]   --> src/miner.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use crate::crypto::merkle::MerkleTree;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Block`, `Content`, `Header`
[INFO] [stderr]   --> src/miner.rs:13:20
[INFO] [stderr]    |
[INFO] [stderr] 13 | use crate::block::{Block, Header, Content};
[INFO] [stderr]    |                    ^^^^^  ^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stderr]   --> src/miner.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::time::{SystemTime, UNIX_EPOCH, Instant};
[INFO] [stderr]    |                 ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `generate_rand_hash256`
[INFO] [stderr]   --> src/miner.rs:15:37
[INFO] [stderr]    |
[INFO] [stderr] 15 | use crate::crypto::hash::{Hashable, generate_rand_hash256, H160, H256};
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hex_literal::hex`
[INFO] [stderr]   --> src/miner.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use hex_literal::hex;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::network::message::Message::NewBlockHashes`
[INFO] [stderr]   --> src/miner.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use crate::network::message::Message::NewBlockHashes;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::crypto::key_pair::random`
[INFO] [stderr]   --> src/miner.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use crate::crypto::key_pair::random;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::network::peer::Direction::Outgoing`
[INFO] [stderr]   --> src/miner.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use crate::network::peer::Direction::Outgoing;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `url::quirks::hash`
[INFO] [stderr]   --> src/miner.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | use url::quirks::hash;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `current`, `sleep`
[INFO] [stderr]   --> src/miner.rs:29:19
[INFO] [stderr]    |
[INFO] [stderr] 29 | use std::thread::{sleep, current};
[INFO] [stderr]    |                   ^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `hex` is imported redundantly
[INFO] [stderr]    --> src/miner.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 18  | use hex_literal::hex;
[INFO] [stderr]     |     ---------------- the item `hex` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 124 |         use hex_literal::hex;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hex_literal::hex`
[INFO] [stderr]    --> src/miner.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 124 |         use hex_literal::hex;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Transaction`
[INFO] [stderr]  --> src/network/message.rs:4:26
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::transaction::{Transaction, SignedTrans};
[INFO] [stderr]   |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `MutexGuard`
[INFO] [stderr]  --> src/network/worker.rs:7:29
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::sync::{Arc, Mutex, MutexGuard};
[INFO] [stderr]   |                             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `log::info`
[INFO] [stderr]   --> src/network/worker.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use log::info;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Instant`
[INFO] [stderr]   --> src/network/worker.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::time::{Instant, SystemTime, UNIX_EPOCH};
[INFO] [stderr]    |                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde::Serialize`
[INFO] [stderr]   --> src/network/worker.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use serde::Serialize;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::transaction`
[INFO] [stderr]   --> src/network/worker.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use crate::transaction;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Transaction`
[INFO] [stderr]   --> src/network/worker.rs:18:26
[INFO] [stderr]    |
[INFO] [stderr] 18 | use crate::transaction::{Transaction, verify, SignedTrans};
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::state::State`
[INFO] [stderr]   --> src/network/worker.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use crate::state::State;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `EdDSAParameters`, `Signature`
[INFO] [stderr]  --> src/transaction.rs:2:39
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters, UnparsedPublicKey};
[INFO] [stderr]   |                                       ^^^^^^^^^                                  ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]  --> src/transaction.rs:7:24
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ring::agreement::PublicKey`
[INFO] [stderr]   --> src/transaction.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use ring::agreement::PublicKey;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Rng` is imported redundantly
[INFO] [stderr]    --> src/transaction.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 6   | use rand::Rng;
[INFO] [stderr]     |     --------- the item `Rng` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 155 |     use rand::Rng;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `H160`
[INFO] [stderr]  --> src/state.rs:3:33
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::crypto::hash::{H256, H160};
[INFO] [stderr]   |                                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hex_literal::hex`
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use hex_literal::hex;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::mempool::Mempool`
[INFO] [stderr]   --> src/main.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | use crate::mempool::Mempool;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/miner.rs:267:25
[INFO] [stderr]     |
[INFO] [stderr] 266 |                         break;
[INFO] [stderr]     |                         ----- any code following this expression is unreachable
[INFO] [stderr] 267 |                         info!("time out");
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::hash::Hash`
[INFO] [stderr]  --> src/blockchain.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::hash::Hash;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `VerificationAlgorithm`
[INFO] [stderr]  --> src/transaction.rs:2:59
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters, UnparsedPublicKey};
[INFO] [stderr]   |                                                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/transaction.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n1`
[INFO] [stderr]   --> src/block.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let n1: u32 = rng.gen();
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_n1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `out`
[INFO] [stderr]   --> src/blockchain.rs:90:19
[INFO] [stderr]    |
[INFO] [stderr] 90 |         for (hash,out) in st.clone() {
[INFO] [stderr]    |                   ^^^ help: if this is intentional, prefix it with an underscore: `_out`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fin` is never read
[INFO] [stderr]    --> src/crypto/merkle.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |     let mut fin = cat.finish();
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]    --> src/crypto/merkle.rs:104:58
[INFO] [stderr]     |
[INFO] [stderr] 104 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stderr]     |                                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `leaf_size`
[INFO] [stderr]    --> src/crypto/merkle.rs:104:72
[INFO] [stderr]     |
[INFO] [stderr] 104 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stderr]     |                                                                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_leaf_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cnt`
[INFO] [stderr]   --> src/crypto/merkle.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let mut cnt = 0;
[INFO] [stderr]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cnt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/crypto/merkle.rs:79:18
[INFO] [stderr]    |
[INFO] [stderr] 79 |             Node{val,left:Some(ref left),right:Some(ref right)}=>{
[INFO] [stderr]    |                  ^^^ help: try ignoring the field: `val: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `sub_lem_val` is assigned to, but never used
[INFO] [stderr]   --> src/crypto/merkle.rs:81:22
[INFO] [stderr]    |
[INFO] [stderr] 81 |                 let (sub_lem_val);
[INFO] [stderr]    |                      ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_sub_lem_val` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sub_lem_val` is never read
[INFO] [stderr]   --> src/crypto/merkle.rs:84:21
[INFO] [stderr]    |
[INFO] [stderr] 84 |                     sub_lem_val = MerkleTree::get_proof(left, index, left_count,res);
[INFO] [stderr]    |                     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sub_lem_val` is never read
[INFO] [stderr]   --> src/crypto/merkle.rs:87:21
[INFO] [stderr]    |
[INFO] [stderr] 87 |                     sub_lem_val = MerkleTree::get_proof(right, index - left_count, count - left_count,res);
[INFO] [stderr]    |                     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/miner.rs:210:25
[INFO] [stderr]     |
[INFO] [stderr] 210 |                     for i in 0..num_transactions {
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `in_val`
[INFO] [stderr]    --> src/miner.rs:277:13
[INFO] [stderr]     |
[INFO] [stderr] 277 |         let mut in_val:u8 = 1;
[INFO] [stderr]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_in_val`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hash`
[INFO] [stderr]    --> src/miner.rs:296:38
[INFO] [stderr]     |
[INFO] [stderr] 296 |     fn get_input(&self, out_val:&u8, hash: &H256) -> (Vec<Input>, u8){
[INFO] [stderr]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_hash`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]    --> src/network/worker.rs:151:37
[INFO] [stderr]     |
[INFO] [stderr] 151 | ...                   let size = encoded.len();
[INFO] [stderr]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `flag` is never read
[INFO] [stderr]   --> src/state.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let mut flag = false;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]   --> src/mempool.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |             let res = self.pool.remove(&hash);
[INFO] [stderr]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let mut blockchain = blockchain::Blockchain::new();
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut mempool = mempool::Mempool::new();
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let mut blkchain = Arc::new(Mutex::new(blockchain));
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut mem_pool = Arc::new(Mutex::new(mempool));
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |     let mut address_list = Arc::new(Mutex::new(Vec::new()));
[INFO] [stderr]    |         ----^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/block.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut data = Vec::new();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/blockchain.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut o_buf = Vec::new();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/blockchain.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let mut vec_in = transaction.tx_in.clone();
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/blockchain.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let mut b = (*block).clone();
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/crypto/merkle.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let mut cnt = 0;
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/crypto/merkle.rs:47:21
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 let mut tmp = cur[cur.len()-1].val;
[INFO] [stderr]    |                     ----^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:132:13
[INFO] [stderr]     |
[INFO] [stderr] 132 |         let mut address_vec = vec![address];
[INFO] [stderr]     |             ----^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:144:17
[INFO] [stderr]     |
[INFO] [stderr] 144 |             let mut ipt = Vec::new();
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:149:17
[INFO] [stderr]     |
[INFO] [stderr] 149 |             let mut tx = Transaction{
[INFO] [stderr]     |                 ----^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:160:13
[INFO] [stderr]     |
[INFO] [stderr] 160 |         let mut blkstate = State{
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:196:25
[INFO] [stderr]     |
[INFO] [stderr] 196 |                     let mut chain = self.blkchain.lock().unwrap();
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:200:25
[INFO] [stderr]     |
[INFO] [stderr] 200 |                     let mut chain = self.blkchain.lock().unwrap();
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:220:25
[INFO] [stderr]     |
[INFO] [stderr] 220 |                     let mut chain = self.blkchain.lock().unwrap();
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:233:29
[INFO] [stderr]     |
[INFO] [stderr] 233 |                         let mut pool = self.mem_pool.lock().unwrap().clone().pool;
[INFO] [stderr]     |                             ----^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:277:13
[INFO] [stderr]     |
[INFO] [stderr] 277 |         let mut in_val:u8 = 1;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:298:13
[INFO] [stderr]     |
[INFO] [stderr] 298 |         let mut chain = self.blkchain.lock().unwrap().clone();
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/network/worker.rs:81:25
[INFO] [stderr]    |
[INFO] [stderr] 81 |                     let mut blockchain = self.blkchain.lock().unwrap();
[INFO] [stderr]    |                         ----^^^^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/network/worker.rs:97:25
[INFO] [stderr]    |
[INFO] [stderr] 97 |                     let mut mem_pool = self.mem_pool.lock().unwrap();
[INFO] [stderr]    |                         ----^^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/network/worker.rs:112:25
[INFO] [stderr]     |
[INFO] [stderr] 112 |                     let mut blockchain = self.blkchain.lock().unwrap();
[INFO] [stderr]     |                         ----^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/network/worker.rs:210:25
[INFO] [stderr]     |
[INFO] [stderr] 210 |                     let mut mem_pool = self.mem_pool.lock().unwrap().clone();
[INFO] [stderr]     |                         ----^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `Troot` should have a snake case name
[INFO] [stderr]  --> src/crypto/merkle.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Troot: Node,
[INFO] [stderr]   |     ^^^^^ help: convert the identifier to snake case: `troot`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 81 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 46s
[INFO] running `"docker" "inspect" "e9052658377b6dfd833ab76c81cd1bf3efa8158b4612441df0bf4cace7206d91"`
[INFO] running `"docker" "rm" "-f" "e9052658377b6dfd833ab76c81cd1bf3efa8158b4612441df0bf4cace7206d91"`
[INFO] [stdout] e9052658377b6dfd833ab76c81cd1bf3efa8158b4612441df0bf4cace7206d91
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 657e030324fd661d0bb59972d05a51479cad8b1b5195d071fed38bb6fc0b64b1
[INFO] running `"docker" "start" "-a" "657e030324fd661d0bb59972d05a51479cad8b1b5195d071fed38bb6fc0b64b1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling bitcoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Transaction`, `generate_rand_transaction`
[INFO] [stderr]  --> src/block.rs:3:26
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::transaction::{Transaction, generate_rand_transaction, SignedTrans};
[INFO] [stderr]   |                          ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `hex` is imported redundantly
[INFO] [stderr]   --> src/block.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     use hex_literal::hex;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:2:1
[INFO] [stderr]    |
[INFO] [stderr] 2  | #[macro_use]
[INFO] [stderr]    | ------------ the item `hex` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::crypto::merkle::MerkleTree`
[INFO] [stderr]   --> src/block.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     use crate::crypto::merkle::MerkleTree;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/blockchain.rs:5:33
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Output`, `SignedTrans`
[INFO] [stderr]  --> src/blockchain.rs:6:39
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::transaction::{Transaction, SignedTrans, Output, verify};
[INFO] [stderr]   |                                       ^^^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/blockchain.rs:143:17
[INFO] [stderr]     |
[INFO] [stderr] 143 |         let p = (parent_block.clone());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around pattern
[INFO] [stderr]   --> src/crypto/merkle.rs:81:21
[INFO] [stderr]    |
[INFO] [stderr] 81 |                 let (sub_lem_val);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/miner.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `gen_rand_signtx`, `generate_rand_transaction`
[INFO] [stderr]  --> src/miner.rs:9:39
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::transaction::{Transaction, generate_rand_transaction, SignedTrans, sign, Input, Output, gen_rand_signtx};
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^                                    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::crypto::merkle::MerkleTree`
[INFO] [stderr]   --> src/miner.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use crate::crypto::merkle::MerkleTree;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Block`, `Content`, `Header`
[INFO] [stderr]   --> src/miner.rs:13:20
[INFO] [stderr]    |
[INFO] [stderr] 13 | use crate::block::{Block, Header, Content};
[INFO] [stderr]    |                    ^^^^^  ^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stderr]   --> src/miner.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::time::{SystemTime, UNIX_EPOCH, Instant};
[INFO] [stderr]    |                 ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `generate_rand_hash256`
[INFO] [stderr]   --> src/miner.rs:15:37
[INFO] [stderr]    |
[INFO] [stderr] 15 | use crate::crypto::hash::{Hashable, generate_rand_hash256, H160, H256};
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hex_literal::hex`
[INFO] [stderr]   --> src/miner.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use hex_literal::hex;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::network::message::Message::NewBlockHashes`
[INFO] [stderr]   --> src/miner.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use crate::network::message::Message::NewBlockHashes;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::crypto::key_pair::random`
[INFO] [stderr]   --> src/miner.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use crate::crypto::key_pair::random;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::network::peer::Direction::Outgoing`
[INFO] [stderr]   --> src/miner.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use crate::network::peer::Direction::Outgoing;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `url::quirks::hash`
[INFO] [stderr]   --> src/miner.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | use url::quirks::hash;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `current`, `sleep`
[INFO] [stderr]   --> src/miner.rs:29:19
[INFO] [stderr]    |
[INFO] [stderr] 29 | use std::thread::{sleep, current};
[INFO] [stderr]    |                   ^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `hex` is imported redundantly
[INFO] [stderr]    --> src/miner.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 18  | use hex_literal::hex;
[INFO] [stderr]     |     ---------------- the item `hex` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 124 |         use hex_literal::hex;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hex_literal::hex`
[INFO] [stderr]    --> src/miner.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 124 |         use hex_literal::hex;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Transaction`
[INFO] [stderr]  --> src/network/message.rs:4:26
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::transaction::{Transaction, SignedTrans};
[INFO] [stderr]   |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `MutexGuard`
[INFO] [stderr]  --> src/network/worker.rs:7:29
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::sync::{Arc, Mutex, MutexGuard};
[INFO] [stderr]   |                             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `log::info`
[INFO] [stderr]   --> src/network/worker.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use log::info;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Instant`
[INFO] [stderr]   --> src/network/worker.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::time::{Instant, SystemTime, UNIX_EPOCH};
[INFO] [stderr]    |                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde::Serialize`
[INFO] [stderr]   --> src/network/worker.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use serde::Serialize;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::transaction`
[INFO] [stderr]   --> src/network/worker.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use crate::transaction;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Transaction`
[INFO] [stderr]   --> src/network/worker.rs:18:26
[INFO] [stderr]    |
[INFO] [stderr] 18 | use crate::transaction::{Transaction, verify, SignedTrans};
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::state::State`
[INFO] [stderr]   --> src/network/worker.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use crate::state::State;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `EdDSAParameters`, `Signature`
[INFO] [stderr]  --> src/transaction.rs:2:39
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters, UnparsedPublicKey};
[INFO] [stderr]   |                                       ^^^^^^^^^                                  ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]  --> src/transaction.rs:7:24
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ring::agreement::PublicKey`
[INFO] [stderr]   --> src/transaction.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use ring::agreement::PublicKey;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Rng` is imported redundantly
[INFO] [stderr]    --> src/transaction.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 6   | use rand::Rng;
[INFO] [stderr]     |     --------- the item `Rng` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 155 |     use rand::Rng;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `hex` is imported redundantly
[INFO] [stderr]    --> src/transaction.rs:204:9
[INFO] [stderr]     |
[INFO] [stderr] 204 |     use hex_literal::hex;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:2:1
[INFO] [stderr]     |
[INFO] [stderr] 2   | #[macro_use]
[INFO] [stderr]     | ------------ the item `hex` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Rng` is imported redundantly
[INFO] [stderr]    --> src/transaction.rs:232:13
[INFO] [stderr]     |
[INFO] [stderr] 227 |     use super::*;
[INFO] [stderr]     |         -------- the item `Rng` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 232 |         use rand::Rng;
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `H160`
[INFO] [stderr]  --> src/state.rs:3:33
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::crypto::hash::{H256, H160};
[INFO] [stderr]   |                                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hex_literal::hex`
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use hex_literal::hex;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::mempool::Mempool`
[INFO] [stderr]   --> src/main.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | use crate::mempool::Mempool;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/miner.rs:267:25
[INFO] [stderr]     |
[INFO] [stderr] 266 |                         break;
[INFO] [stderr]     |                         ----- any code following this expression is unreachable
[INFO] [stderr] 267 |                         info!("time out");
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::hash::Hash`
[INFO] [stderr]  --> src/blockchain.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::hash::Hash;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `VerificationAlgorithm`
[INFO] [stderr]  --> src/transaction.rs:2:59
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters, UnparsedPublicKey};
[INFO] [stderr]   |                                                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/transaction.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n1`
[INFO] [stderr]   --> src/block.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let n1: u32 = rng.gen();
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_n1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `out`
[INFO] [stderr]   --> src/blockchain.rs:90:19
[INFO] [stderr]    |
[INFO] [stderr] 90 |         for (hash,out) in st.clone() {
[INFO] [stderr]    |                   ^^^ help: if this is intentional, prefix it with an underscore: `_out`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fin` is never read
[INFO] [stderr]    --> src/crypto/merkle.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |     let mut fin = cat.finish();
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]    --> src/crypto/merkle.rs:104:58
[INFO] [stderr]     |
[INFO] [stderr] 104 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stderr]     |                                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `leaf_size`
[INFO] [stderr]    --> src/crypto/merkle.rs:104:72
[INFO] [stderr]     |
[INFO] [stderr] 104 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stderr]     |                                                                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_leaf_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cnt`
[INFO] [stderr]   --> src/crypto/merkle.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let mut cnt = 0;
[INFO] [stderr]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cnt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/crypto/merkle.rs:79:18
[INFO] [stderr]    |
[INFO] [stderr] 79 |             Node{val,left:Some(ref left),right:Some(ref right)}=>{
[INFO] [stderr]    |                  ^^^ help: try ignoring the field: `val: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `sub_lem_val` is assigned to, but never used
[INFO] [stderr]   --> src/crypto/merkle.rs:81:22
[INFO] [stderr]    |
[INFO] [stderr] 81 |                 let (sub_lem_val);
[INFO] [stderr]    |                      ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_sub_lem_val` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sub_lem_val` is never read
[INFO] [stderr]   --> src/crypto/merkle.rs:84:21
[INFO] [stderr]    |
[INFO] [stderr] 84 |                     sub_lem_val = MerkleTree::get_proof(left, index, left_count,res);
[INFO] [stderr]    |                     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sub_lem_val` is never read
[INFO] [stderr]   --> src/crypto/merkle.rs:87:21
[INFO] [stderr]    |
[INFO] [stderr] 87 |                     sub_lem_val = MerkleTree::get_proof(right, index - left_count, count - left_count,res);
[INFO] [stderr]    |                     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/miner.rs:210:25
[INFO] [stderr]     |
[INFO] [stderr] 210 |                     for i in 0..num_transactions {
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `in_val`
[INFO] [stderr]    --> src/miner.rs:277:13
[INFO] [stderr]     |
[INFO] [stderr] 277 |         let mut in_val:u8 = 1;
[INFO] [stderr]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_in_val`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hash`
[INFO] [stderr]    --> src/miner.rs:296:38
[INFO] [stderr]     |
[INFO] [stderr] 296 |     fn get_input(&self, out_val:&u8, hash: &H256) -> (Vec<Input>, u8){
[INFO] [stderr]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_hash`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]    --> src/network/worker.rs:151:37
[INFO] [stderr]     |
[INFO] [stderr] 151 | ...                   let size = encoded.len();
[INFO] [stderr]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `signature`
[INFO] [stderr]    --> src/transaction.rs:249:13
[INFO] [stderr]     |
[INFO] [stderr] 249 |         let signature = sign(&t, &key);
[INFO] [stderr]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signature`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `flag` is never read
[INFO] [stderr]   --> src/state.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let mut flag = false;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]   --> src/mempool.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |             let res = self.pool.remove(&hash);
[INFO] [stderr]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let mut blockchain = blockchain::Blockchain::new();
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut mempool = mempool::Mempool::new();
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let mut blkchain = Arc::new(Mutex::new(blockchain));
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut mem_pool = Arc::new(Mutex::new(mempool));
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |     let mut address_list = Arc::new(Mutex::new(Vec::new()));
[INFO] [stderr]    |         ----^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/block.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut data = Vec::new();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/blockchain.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut o_buf = Vec::new();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/blockchain.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let mut vec_in = transaction.tx_in.clone();
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/blockchain.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let mut b = (*block).clone();
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/crypto/merkle.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let mut cnt = 0;
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/crypto/merkle.rs:47:21
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 let mut tmp = cur[cur.len()-1].val;
[INFO] [stderr]    |                     ----^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:132:13
[INFO] [stderr]     |
[INFO] [stderr] 132 |         let mut address_vec = vec![address];
[INFO] [stderr]     |             ----^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:144:17
[INFO] [stderr]     |
[INFO] [stderr] 144 |             let mut ipt = Vec::new();
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:149:17
[INFO] [stderr]     |
[INFO] [stderr] 149 |             let mut tx = Transaction{
[INFO] [stderr]     |                 ----^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:160:13
[INFO] [stderr]     |
[INFO] [stderr] 160 |         let mut blkstate = State{
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:196:25
[INFO] [stderr]     |
[INFO] [stderr] 196 |                     let mut chain = self.blkchain.lock().unwrap();
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:200:25
[INFO] [stderr]     |
[INFO] [stderr] 200 |                     let mut chain = self.blkchain.lock().unwrap();
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:220:25
[INFO] [stderr]     |
[INFO] [stderr] 220 |                     let mut chain = self.blkchain.lock().unwrap();
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:233:29
[INFO] [stderr]     |
[INFO] [stderr] 233 |                         let mut pool = self.mem_pool.lock().unwrap().clone().pool;
[INFO] [stderr]     |                             ----^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:277:13
[INFO] [stderr]     |
[INFO] [stderr] 277 |         let mut in_val:u8 = 1;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:298:13
[INFO] [stderr]     |
[INFO] [stderr] 298 |         let mut chain = self.blkchain.lock().unwrap().clone();
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/network/worker.rs:81:25
[INFO] [stderr]    |
[INFO] [stderr] 81 |                     let mut blockchain = self.blkchain.lock().unwrap();
[INFO] [stderr]    |                         ----^^^^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/network/worker.rs:97:25
[INFO] [stderr]    |
[INFO] [stderr] 97 |                     let mut mem_pool = self.mem_pool.lock().unwrap();
[INFO] [stderr]    |                         ----^^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/network/worker.rs:112:25
[INFO] [stderr]     |
[INFO] [stderr] 112 |                     let mut blockchain = self.blkchain.lock().unwrap();
[INFO] [stderr]     |                         ----^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/network/worker.rs:210:25
[INFO] [stderr]     |
[INFO] [stderr] 210 |                     let mut mem_pool = self.mem_pool.lock().unwrap().clone();
[INFO] [stderr]     |                         ----^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `Troot` should have a snake case name
[INFO] [stderr]  --> src/crypto/merkle.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Troot: Node,
[INFO] [stderr]   |     ^^^^^ help: convert the identifier to snake case: `troot`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 85 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.13s
[INFO] running `"docker" "inspect" "657e030324fd661d0bb59972d05a51479cad8b1b5195d071fed38bb6fc0b64b1"`
[INFO] running `"docker" "rm" "-f" "657e030324fd661d0bb59972d05a51479cad8b1b5195d071fed38bb6fc0b64b1"`
[INFO] [stdout] 657e030324fd661d0bb59972d05a51479cad8b1b5195d071fed38bb6fc0b64b1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 17af20bd6bf1383c90f3595cfe0f44cf7dfb22e5fe2f521b2984e37fc7a23aa3
[INFO] running `"docker" "start" "-a" "17af20bd6bf1383c90f3595cfe0f44cf7dfb22e5fe2f521b2984e37fc7a23aa3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused imports: `Transaction`, `generate_rand_transaction`
[INFO] [stderr]  --> src/block.rs:3:26
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::transaction::{Transaction, generate_rand_transaction, SignedTrans};
[INFO] [stderr]   |                          ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `hex` is imported redundantly
[INFO] [stderr]   --> src/block.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     use hex_literal::hex;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:2:1
[INFO] [stderr]    |
[INFO] [stderr] 2  | #[macro_use]
[INFO] [stderr]    | ------------ the item `hex` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::crypto::merkle::MerkleTree`
[INFO] [stderr]   --> src/block.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     use crate::crypto::merkle::MerkleTree;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/blockchain.rs:5:33
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Output`, `SignedTrans`
[INFO] [stderr]  --> src/blockchain.rs:6:39
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::transaction::{Transaction, SignedTrans, Output, verify};
[INFO] [stderr]   |                                       ^^^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/blockchain.rs:143:17
[INFO] [stderr]     |
[INFO] [stderr] 143 |         let p = (parent_block.clone());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around pattern
[INFO] [stderr]   --> src/crypto/merkle.rs:81:21
[INFO] [stderr]    |
[INFO] [stderr] 81 |                 let (sub_lem_val);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/miner.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `gen_rand_signtx`, `generate_rand_transaction`
[INFO] [stderr]  --> src/miner.rs:9:39
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::transaction::{Transaction, generate_rand_transaction, SignedTrans, sign, Input, Output, gen_rand_signtx};
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^                                    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::crypto::merkle::MerkleTree`
[INFO] [stderr]   --> src/miner.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use crate::crypto::merkle::MerkleTree;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Block`, `Content`, `Header`
[INFO] [stderr]   --> src/miner.rs:13:20
[INFO] [stderr]    |
[INFO] [stderr] 13 | use crate::block::{Block, Header, Content};
[INFO] [stderr]    |                    ^^^^^  ^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stderr]   --> src/miner.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::time::{SystemTime, UNIX_EPOCH, Instant};
[INFO] [stderr]    |                 ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `generate_rand_hash256`
[INFO] [stderr]   --> src/miner.rs:15:37
[INFO] [stderr]    |
[INFO] [stderr] 15 | use crate::crypto::hash::{Hashable, generate_rand_hash256, H160, H256};
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hex_literal::hex`
[INFO] [stderr]   --> src/miner.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use hex_literal::hex;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::network::message::Message::NewBlockHashes`
[INFO] [stderr]   --> src/miner.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use crate::network::message::Message::NewBlockHashes;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::crypto::key_pair::random`
[INFO] [stderr]   --> src/miner.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use crate::crypto::key_pair::random;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::network::peer::Direction::Outgoing`
[INFO] [stderr]   --> src/miner.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use crate::network::peer::Direction::Outgoing;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `url::quirks::hash`
[INFO] [stderr]   --> src/miner.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | use url::quirks::hash;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `current`, `sleep`
[INFO] [stderr]   --> src/miner.rs:29:19
[INFO] [stderr]    |
[INFO] [stderr] 29 | use std::thread::{sleep, current};
[INFO] [stderr]    |                   ^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `hex` is imported redundantly
[INFO] [stderr]    --> src/miner.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 18  | use hex_literal::hex;
[INFO] [stderr]     |     ---------------- the item `hex` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 124 |         use hex_literal::hex;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hex_literal::hex`
[INFO] [stderr]    --> src/miner.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 124 |         use hex_literal::hex;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Transaction`
[INFO] [stderr]  --> src/network/message.rs:4:26
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::transaction::{Transaction, SignedTrans};
[INFO] [stderr]   |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `MutexGuard`
[INFO] [stderr]  --> src/network/worker.rs:7:29
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::sync::{Arc, Mutex, MutexGuard};
[INFO] [stderr]   |                             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `log::info`
[INFO] [stderr]   --> src/network/worker.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use log::info;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Instant`
[INFO] [stderr]   --> src/network/worker.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::time::{Instant, SystemTime, UNIX_EPOCH};
[INFO] [stderr]    |                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde::Serialize`
[INFO] [stderr]   --> src/network/worker.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use serde::Serialize;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::transaction`
[INFO] [stderr]   --> src/network/worker.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use crate::transaction;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Transaction`
[INFO] [stderr]   --> src/network/worker.rs:18:26
[INFO] [stderr]    |
[INFO] [stderr] 18 | use crate::transaction::{Transaction, verify, SignedTrans};
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::state::State`
[INFO] [stderr]   --> src/network/worker.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use crate::state::State;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `EdDSAParameters`, `Signature`
[INFO] [stderr]  --> src/transaction.rs:2:39
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters, UnparsedPublicKey};
[INFO] [stderr]   |                                       ^^^^^^^^^                                  ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]  --> src/transaction.rs:7:24
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ring::agreement::PublicKey`
[INFO] [stderr]   --> src/transaction.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use ring::agreement::PublicKey;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Rng` is imported redundantly
[INFO] [stderr]    --> src/transaction.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 6   | use rand::Rng;
[INFO] [stderr]     |     --------- the item `Rng` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 155 |     use rand::Rng;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `hex` is imported redundantly
[INFO] [stderr]    --> src/transaction.rs:204:9
[INFO] [stderr]     |
[INFO] [stderr] 204 |     use hex_literal::hex;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:2:1
[INFO] [stderr]     |
[INFO] [stderr] 2   | #[macro_use]
[INFO] [stderr]     | ------------ the item `hex` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Rng` is imported redundantly
[INFO] [stderr]    --> src/transaction.rs:232:13
[INFO] [stderr]     |
[INFO] [stderr] 227 |     use super::*;
[INFO] [stderr]     |         -------- the item `Rng` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 232 |         use rand::Rng;
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `H160`
[INFO] [stderr]  --> src/state.rs:3:33
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::crypto::hash::{H256, H160};
[INFO] [stderr]   |                                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hex_literal::hex`
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use hex_literal::hex;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::mempool::Mempool`
[INFO] [stderr]   --> src/main.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | use crate::mempool::Mempool;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/miner.rs:267:25
[INFO] [stderr]     |
[INFO] [stderr] 266 |                         break;
[INFO] [stderr]     |                         ----- any code following this expression is unreachable
[INFO] [stderr] 267 |                         info!("time out");
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::hash::Hash`
[INFO] [stderr]  --> src/blockchain.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::hash::Hash;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `VerificationAlgorithm`
[INFO] [stderr]  --> src/transaction.rs:2:59
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters, UnparsedPublicKey};
[INFO] [stderr]   |                                                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/transaction.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n1`
[INFO] [stderr]   --> src/block.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let n1: u32 = rng.gen();
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_n1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `out`
[INFO] [stderr]   --> src/blockchain.rs:90:19
[INFO] [stderr]    |
[INFO] [stderr] 90 |         for (hash,out) in st.clone() {
[INFO] [stderr]    |                   ^^^ help: if this is intentional, prefix it with an underscore: `_out`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fin` is never read
[INFO] [stderr]    --> src/crypto/merkle.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |     let mut fin = cat.finish();
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]    --> src/crypto/merkle.rs:104:58
[INFO] [stderr]     |
[INFO] [stderr] 104 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stderr]     |                                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `leaf_size`
[INFO] [stderr]    --> src/crypto/merkle.rs:104:72
[INFO] [stderr]     |
[INFO] [stderr] 104 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stderr]     |                                                                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_leaf_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cnt`
[INFO] [stderr]   --> src/crypto/merkle.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let mut cnt = 0;
[INFO] [stderr]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cnt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/crypto/merkle.rs:79:18
[INFO] [stderr]    |
[INFO] [stderr] 79 |             Node{val,left:Some(ref left),right:Some(ref right)}=>{
[INFO] [stderr]    |                  ^^^ help: try ignoring the field: `val: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `sub_lem_val` is assigned to, but never used
[INFO] [stderr]   --> src/crypto/merkle.rs:81:22
[INFO] [stderr]    |
[INFO] [stderr] 81 |                 let (sub_lem_val);
[INFO] [stderr]    |                      ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_sub_lem_val` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sub_lem_val` is never read
[INFO] [stderr]   --> src/crypto/merkle.rs:84:21
[INFO] [stderr]    |
[INFO] [stderr] 84 |                     sub_lem_val = MerkleTree::get_proof(left, index, left_count,res);
[INFO] [stderr]    |                     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sub_lem_val` is never read
[INFO] [stderr]   --> src/crypto/merkle.rs:87:21
[INFO] [stderr]    |
[INFO] [stderr] 87 |                     sub_lem_val = MerkleTree::get_proof(right, index - left_count, count - left_count,res);
[INFO] [stderr]    |                     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/miner.rs:210:25
[INFO] [stderr]     |
[INFO] [stderr] 210 |                     for i in 0..num_transactions {
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `in_val`
[INFO] [stderr]    --> src/miner.rs:277:13
[INFO] [stderr]     |
[INFO] [stderr] 277 |         let mut in_val:u8 = 1;
[INFO] [stderr]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_in_val`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hash`
[INFO] [stderr]    --> src/miner.rs:296:38
[INFO] [stderr]     |
[INFO] [stderr] 296 |     fn get_input(&self, out_val:&u8, hash: &H256) -> (Vec<Input>, u8){
[INFO] [stderr]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_hash`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]    --> src/network/worker.rs:151:37
[INFO] [stderr]     |
[INFO] [stderr] 151 | ...                   let size = encoded.len();
[INFO] [stderr]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `signature`
[INFO] [stderr]    --> src/transaction.rs:249:13
[INFO] [stderr]     |
[INFO] [stderr] 249 |         let signature = sign(&t, &key);
[INFO] [stderr]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signature`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `flag` is never read
[INFO] [stderr]   --> src/state.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let mut flag = false;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]   --> src/mempool.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |             let res = self.pool.remove(&hash);
[INFO] [stderr]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let mut blockchain = blockchain::Blockchain::new();
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut mempool = mempool::Mempool::new();
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let mut blkchain = Arc::new(Mutex::new(blockchain));
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut mem_pool = Arc::new(Mutex::new(mempool));
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |     let mut address_list = Arc::new(Mutex::new(Vec::new()));
[INFO] [stderr]    |         ----^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/block.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut data = Vec::new();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/blockchain.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut o_buf = Vec::new();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/blockchain.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let mut vec_in = transaction.tx_in.clone();
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/blockchain.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let mut b = (*block).clone();
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/crypto/merkle.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let mut cnt = 0;
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/crypto/merkle.rs:47:21
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 let mut tmp = cur[cur.len()-1].val;
[INFO] [stderr]    |                     ----^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:132:13
[INFO] [stderr]     |
[INFO] [stderr] 132 |         let mut address_vec = vec![address];
[INFO] [stderr]     |             ----^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:144:17
[INFO] [stderr]     |
[INFO] [stderr] 144 |             let mut ipt = Vec::new();
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:149:17
[INFO] [stderr]     |
[INFO] [stderr] 149 |             let mut tx = Transaction{
[INFO] [stderr]     |                 ----^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:160:13
[INFO] [stderr]     |
[INFO] [stderr] 160 |         let mut blkstate = State{
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:196:25
[INFO] [stderr]     |
[INFO] [stderr] 196 |                     let mut chain = self.blkchain.lock().unwrap();
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:200:25
[INFO] [stderr]     |
[INFO] [stderr] 200 |                     let mut chain = self.blkchain.lock().unwrap();
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:220:25
[INFO] [stderr]     |
[INFO] [stderr] 220 |                     let mut chain = self.blkchain.lock().unwrap();
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:233:29
[INFO] [stderr]     |
[INFO] [stderr] 233 |                         let mut pool = self.mem_pool.lock().unwrap().clone().pool;
[INFO] [stderr]     |                             ----^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:277:13
[INFO] [stderr]     |
[INFO] [stderr] 277 |         let mut in_val:u8 = 1;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/miner.rs:298:13
[INFO] [stderr]     |
[INFO] [stderr] 298 |         let mut chain = self.blkchain.lock().unwrap().clone();
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/network/worker.rs:81:25
[INFO] [stderr]    |
[INFO] [stderr] 81 |                     let mut blockchain = self.blkchain.lock().unwrap();
[INFO] [stderr]    |                         ----^^^^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/network/worker.rs:97:25
[INFO] [stderr]    |
[INFO] [stderr] 97 |                     let mut mem_pool = self.mem_pool.lock().unwrap();
[INFO] [stderr]    |                         ----^^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/network/worker.rs:112:25
[INFO] [stderr]     |
[INFO] [stderr] 112 |                     let mut blockchain = self.blkchain.lock().unwrap();
[INFO] [stderr]     |                         ----^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/network/worker.rs:210:25
[INFO] [stderr]     |
[INFO] [stderr] 210 |                     let mut mem_pool = self.mem_pool.lock().unwrap().clone();
[INFO] [stderr]     |                         ----^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `Troot` should have a snake case name
[INFO] [stderr]  --> src/crypto/merkle.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Troot: Node,
[INFO] [stderr]   |     ^^^^^ help: convert the identifier to snake case: `troot`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 85 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bitcoin-8aaded2801629215
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test crypto::merkle::tests::root ... ok
[INFO] [stdout] test crypto::merkle::tests::verifying ... ok
[INFO] [stdout] test crypto::merkle::tests::proof ... ok
[INFO] [stdout] test blockchain::tests::insert_one ... ok
[INFO] [stdout] test transaction::tests::sign_verify ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "17af20bd6bf1383c90f3595cfe0f44cf7dfb22e5fe2f521b2984e37fc7a23aa3"`
[INFO] running `"docker" "rm" "-f" "17af20bd6bf1383c90f3595cfe0f44cf7dfb22e5fe2f521b2984e37fc7a23aa3"`
[INFO] [stdout] 17af20bd6bf1383c90f3595cfe0f44cf7dfb22e5fe2f521b2984e37fc7a23aa3