[INFO] cloning repository https://github.com/Sm1te/BlockChain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sm1te/BlockChain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSm1te%2FBlockChain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSm1te%2FBlockChain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 706a64f04fd652445acb0210a9aea82eb1172842
[INFO] checking Sm1te/BlockChain against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSm1te%2FBlockChain" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sm1te/BlockChain on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Sm1te/BlockChain
[INFO] finished tweaking git repo https://github.com/Sm1te/BlockChain
[INFO] tweaked toml for git repo https://github.com/Sm1te/BlockChain written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Sm1te/BlockChain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hex-literal-impl v0.2.1
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[INFO] [stderr]   Downloaded term_size v0.3.1
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[INFO] [stderr]   Downloaded wincolor v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35b8a963a0a01eafeb5d61aa479e749e88b30a4af09f75d0d342db3dfe8be872
[INFO] running `Command { std: "docker" "start" "-a" "35b8a963a0a01eafeb5d61aa479e749e88b30a4af09f75d0d342db3dfe8be872", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35b8a963a0a01eafeb5d61aa479e749e88b30a4af09f75d0d342db3dfe8be872", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35b8a963a0a01eafeb5d61aa479e749e88b30a4af09f75d0d342db3dfe8be872", kill_on_drop: false }`
[INFO] [stdout] 35b8a963a0a01eafeb5d61aa479e749e88b30a4af09f75d0d342db3dfe8be872
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46bcd1305ccac83a442f3a435a00eb1d100dd7f229ba974e63748f70e877e7a5
[INFO] running `Command { std: "docker" "start" "-a" "46bcd1305ccac83a442f3a435a00eb1d100dd7f229ba974e63748f70e877e7a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.6
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[INFO] [stderr]    Compiling proc-macro2 v1.0.32
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[INFO] [stderr]    Compiling serde_derive v1.0.101
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[INFO] [stderr]     Checking bitcoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Transaction`
[INFO] [stdout]  --> src/block.rs:6:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::transaction::{self,Transaction, SignTransaction, generate_random_signed_transaction};
[INFO] [stdout]   |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::distributions::Alphanumeric`
[INFO] [stdout]   --> src/block.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use rand::distributions::Alphanumeric;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/block.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::time::{Duration, SystemTime, UNIX_EPOCH};
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ring::digest`
[INFO] [stdout]  --> src/crypto/hash.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ring::digest;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Transaction`
[INFO] [stdout]  --> src/miner.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::transaction::{self,Transaction, SignTransaction};
[INFO] [stdout]   |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MerkleTree`
[INFO] [stdout]  --> src/miner.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::crypto::merkle::{MerkleTree};
[INFO] [stdout]   |                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EdDSAParameters`
[INFO] [stdout]  --> src/transaction.rs:2:82
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters};
[INFO] [stdout]   |                                                                                  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]  --> src/transaction.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::distributions::Alphanumeric`
[INFO] [stdout]  --> src/transaction.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use rand::distributions::Alphanumeric;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ED25519`, `UnparsedPublicKey`
[INFO] [stdout]   --> src/transaction.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 | use ring::signature::{UnparsedPublicKey, ED25519};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Transaction`
[INFO] [stdout]  --> src/block.rs:6:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::transaction::{self,Transaction, SignTransaction, generate_random_signed_transaction};
[INFO] [stdout]   |                               ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::distributions::Alphanumeric`
[INFO] [stdout]   --> src/block.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use rand::distributions::Alphanumeric;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/block.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::time::{Duration, SystemTime, UNIX_EPOCH};
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]    --> src/blockchain.rs:119:14
[INFO] [stdout]     |
[INFO] [stdout] 119 |         while(phash!=b){
[INFO] [stdout]     |              ^        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 119 -         while(phash!=b){
[INFO] [stdout] 119 +         while phash!=b {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ring::digest`
[INFO] [stdout]  --> src/crypto/hash.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ring::digest;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Transaction`
[INFO] [stdout]  --> src/miner.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::transaction::{self,Transaction, SignTransaction};
[INFO] [stdout]   |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MerkleTree`
[INFO] [stdout]  --> src/miner.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::crypto::merkle::{MerkleTree};
[INFO] [stdout]   |                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EdDSAParameters`
[INFO] [stdout]  --> src/transaction.rs:2:82
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters};
[INFO] [stdout]   |                                                                                  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]  --> src/transaction.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::distributions::Alphanumeric`
[INFO] [stdout]  --> src/transaction.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use rand::distributions::Alphanumeric;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ED25519`, `UnparsedPublicKey`
[INFO] [stdout]   --> src/transaction.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 | use ring::signature::{UnparsedPublicKey, ED25519};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::prelude`
[INFO] [stdout]   --> src/block.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use chrono::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::prelude`
[INFO] [stdout]  --> src/blockchain.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use chrono::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VerificationAlgorithm`
[INFO] [stdout]  --> src/transaction.rs:2:59
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters};
[INFO] [stdout]   |                                                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::prelude`
[INFO] [stdout]   --> src/block.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use chrono::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::prelude`
[INFO] [stdout]  --> src/blockchain.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use chrono::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VerificationAlgorithm`
[INFO] [stdout]  --> src/transaction.rs:2:59
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters};
[INFO] [stdout]   |                                                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/block.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let mut nonce:u32 = thread_rng().gen();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/block.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut timestamp = SystemTime::now().duration_since(UNIX_EPOCH).expect("Time went backwards").as_millis();
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/block.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let mut MerkleTree = MerkleTree::new(&transaction);
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/block.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let mut nonce:u32 = thread_rng().gen();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/block.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut timestamp = SystemTime::now().duration_since(UNIX_EPOCH).expect("Time went backwards").as_millis();
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/block.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let mut MerkleTree = MerkleTree::new(&transaction);
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/blockchain.rs:123:17
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let mut res = result.reverse();
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/blockchain.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let mut buffer: [u8; 32] = [0; 32];
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/blockchain.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let mut res = result.reverse();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/crypto/merkle.rs:101:58
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]     |                                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `next_time`
[INFO] [stdout]    --> src/miner.rs:106:17
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let mut next_time = 0.01;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `next_time_inc`
[INFO] [stdout]    --> src/miner.rs:107:13
[INFO] [stdout]     |
[INFO] [stdout] 107 |         let next_time_inc = 0.01;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_time_inc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/crypto/merkle.rs:101:58
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]     |                                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/miner.rs:106:13
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let mut next_time = 0.01;
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/miner.rs:171:17
[INFO] [stdout]     |
[INFO] [stdout] 171 |             let mut length = self.blockchain.lock().unwrap().chain.keys().len();
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `next_time`
[INFO] [stdout]    --> src/miner.rs:106:17
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let mut next_time = 0.01;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `next_time_inc`
[INFO] [stdout]    --> src/miner.rs:107:13
[INFO] [stdout]     |
[INFO] [stdout] 107 |         let next_time_inc = 0.01;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_time_inc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/miner.rs:106:13
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let mut next_time = 0.01;
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/miner.rs:171:17
[INFO] [stdout]     |
[INFO] [stdout] 171 |             let mut length = self.blockchain.lock().unwrap().chain.keys().len();
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `merkleRoot` should have a snake case name
[INFO] [stdout]   --> src/block.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub merkleRoot: H256,
[INFO] [stdout]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `merkle_root`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Header` should have a snake case name
[INFO] [stdout]   --> src/block.rs:36:6
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub Header: Header,
[INFO] [stdout]    |         ^^^^^^ help: convert the identifier to snake case: `header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Content` should have a snake case name
[INFO] [stdout]   --> src/block.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub Content: Content,
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `content`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `MerkleTree` should have a snake case name
[INFO] [stdout]   --> src/block.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let mut MerkleTree = MerkleTree::new(&transaction);
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `merkle_tree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newHeader` should have a snake case name
[INFO] [stdout]   --> src/block.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let newHeader = Header{
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `new_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newContent` should have a snake case name
[INFO] [stdout]   --> src/block.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let newContent = Content{
[INFO] [stdout]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `new_content`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newBlock` should have a snake case name
[INFO] [stdout]   --> src/block.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let newBlock = Block{
[INFO] [stdout]    |         ^^^^^^^^ help: convert the identifier to snake case: `new_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `merkleRoot` should have a snake case name
[INFO] [stdout]   --> src/block.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub merkleRoot: H256,
[INFO] [stdout]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `merkle_root`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Header` should have a snake case name
[INFO] [stdout]   --> src/block.rs:36:6
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub Header: Header,
[INFO] [stdout]    |         ^^^^^^ help: convert the identifier to snake case: `header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Content` should have a snake case name
[INFO] [stdout]   --> src/block.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub Content: Content,
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `content`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `MerkleTree` should have a snake case name
[INFO] [stdout]   --> src/block.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let mut MerkleTree = MerkleTree::new(&transaction);
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `merkle_tree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newHeader` should have a snake case name
[INFO] [stdout]   --> src/block.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let newHeader = Header{
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `new_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newContent` should have a snake case name
[INFO] [stdout]   --> src/block.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let newContent = Content{
[INFO] [stdout]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `new_content`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newBlock` should have a snake case name
[INFO] [stdout]   --> src/block.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let newBlock = Block{
[INFO] [stdout]    |         ^^^^^^^^ help: convert the identifier to snake case: `new_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 32 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.97s
[INFO] running `Command { std: "docker" "inspect" "46bcd1305ccac83a442f3a435a00eb1d100dd7f229ba974e63748f70e877e7a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46bcd1305ccac83a442f3a435a00eb1d100dd7f229ba974e63748f70e877e7a5", kill_on_drop: false }`
[INFO] [stdout] 46bcd1305ccac83a442f3a435a00eb1d100dd7f229ba974e63748f70e877e7a5
