[INFO] updating cached repository https://github.com/shenshing/blocktest1
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 5c43d777ad538a71b99d9b899caa19ae20eed4a0
[INFO] testing shenshing/blocktest1 against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshenshing%2Fblocktest1" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shenshing/blocktest1 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/shenshing/blocktest1
[INFO] finished tweaking git repo https://github.com/shenshing/blocktest1
[INFO] tweaked toml for git repo https://github.com/shenshing/blocktest1 written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/shenshing/blocktest1 already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] e3df246a54610d38b6f2d9e764ed2dba66f458fdeaa01205611865cd5e0f3cce
[INFO] running `"docker" "start" "-a" "e3df246a54610d38b6f2d9e764ed2dba66f458fdeaa01205611865cd5e0f3cce"`
[INFO] [stderr]    Compiling openssl-sys v0.9.42
[INFO] [stderr]    Compiling openssl v0.10.19
[INFO] [stderr]    Compiling crypto-hash v0.3.3
[INFO] [stderr]    Compiling v_1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `DateTime`, `Utc`
[INFO] [stderr]   --> src/main.rs:11:14
[INFO] [stderr]    |
[INFO] [stderr] 11 | use chrono::{DateTime,Utc};
[INFO] [stderr]    |              ^^^^^^^^ ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stderr]   --> src/main.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::time::{SystemTime,UNIX_EPOCH};
[INFO] [stderr]    |                 ^^^^^^^^^^ ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type `block__chain` should have an upper camel case name
[INFO] [stderr]    --> src/block.rs:207:12
[INFO] [stderr]     |
[INFO] [stderr] 207 | pub struct block__chain<'a,'b>{
[INFO] [stderr]     |            ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `BlockChain`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `block::current_time`
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use block::current_time;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `block::block__chain`
[INFO] [stderr]   --> src/main.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use block::block__chain;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `person::Person`
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use person::Person;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `time` is never read
[INFO] [stderr]    --> src/block.rs:360:17
[INFO] [stderr]     |
[INFO] [stderr] 360 |         let mut time = String::new();
[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: value assigned to `st` is never read
[INFO] [stderr]    --> src/block.rs:370:13
[INFO] [stderr]     |
[INFO] [stderr] 370 |     let mut st = String::new();
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `totalString1` is never read
[INFO] [stderr]    --> src/block.rs:377:13
[INFO] [stderr]     |
[INFO] [stderr] 377 |     let mut totalString1 = format!("");
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `totalString1` is never read
[INFO] [stderr]    --> src/block.rs:380:13
[INFO] [stderr]     |
[INFO] [stderr] 380 |     let mut totalString1 = format!("");
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `value_hash` is never read
[INFO] [stderr]    --> src/block.rs:283:21
[INFO] [stderr]     |
[INFO] [stderr] 283 |             let mut value_hash: Vec<u8> = Vec::new();
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `value_hash` is never read
[INFO] [stderr]    --> src/block.rs:300:21
[INFO] [stderr]     |
[INFO] [stderr] 300 |             let mut value_hash: Vec<u8> = Vec::new();
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `block`
[INFO] [stderr]    --> src/block.rs:313:30
[INFO] [stderr]     |
[INFO] [stderr] 313 |         fn mine_block(&self, block: &[Block]){
[INFO] [stderr]     |                              ^^^^^ help: consider prefixing with an underscore: `_block`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `blocks`
[INFO] [stderr]    --> src/block.rs:352:26
[INFO] [stderr]     |
[INFO] [stderr] 352 |         fn checking_hash(blocks: &Vec<Block>) -> bool{
[INFO] [stderr]     |                          ^^^^^^ help: consider prefixing with an underscore: `_blocks`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `totalString1` is never read
[INFO] [stderr]   --> src/person.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let mut totalString1 = format!("");
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut person1 = block::Person::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:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut person2 = block::Person{
[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:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut person3 = block::Person{
[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:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let mut first_block = Block::genesis_block(&vector_person);
[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:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let mut person4 = block::Person{
[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/person.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut value4 =  10;
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Person`
[INFO] [stderr]  --> src/person.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Person{
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/person.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn new() -> Self{
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_instance`
[INFO] [stderr]   --> src/person.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new_instance(public_key: String,private_key: String,balance: u64) -> Person{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `output`
[INFO] [stderr]   --> src/person.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn output(&self){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Human`
[INFO] [stderr]   --> src/person.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub type Human = Vec<Person>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `human_to_str`
[INFO] [stderr]   --> src/person.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn human_to_str(human:  &Human) -> String{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Testing`
[INFO] [stderr]   --> src/person.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub struct Testing{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_instance`
[INFO] [stderr]   --> src/person.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn new_instance(vect: Vec<i32>) -> Testing{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `output`
[INFO] [stderr]   --> src/person.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn output(&self){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/person.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn main(){
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vector_`
[INFO] [stderr]   --> src/person.rs:79:1
[INFO] [stderr]    |
[INFO] [stderr] 79 | pub fn vector_(vector: &Vec<Person>){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalString` should have a snake case name
[INFO] [stderr]    --> src/block.rs:376:13
[INFO] [stderr]     |
[INFO] [stderr] 376 |     let mut totalString = format!("");
[INFO] [stderr]     |             ^^^^^^^^^^^ help: convert the identifier to snake case: `total_string`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalString1` should have a snake case name
[INFO] [stderr]    --> src/block.rs:377:13
[INFO] [stderr]     |
[INFO] [stderr] 377 |     let mut totalString1 = format!("");
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `total_string1`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalString` should have a snake case name
[INFO] [stderr]    --> src/block.rs:379:13
[INFO] [stderr]     |
[INFO] [stderr] 379 |     let mut totalString = format!("");
[INFO] [stderr]     |             ^^^^^^^^^^^ help: convert the identifier to snake case: `total_string`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalString1` should have a snake case name
[INFO] [stderr]    --> src/block.rs:380:13
[INFO] [stderr]     |
[INFO] [stderr] 380 |     let mut totalString1 = format!("");
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `total_string1`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalString` should have a snake case name
[INFO] [stderr]   --> src/person.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let mut totalString = format!("");
[INFO] [stderr]    |             ^^^^^^^^^^^ help: convert the identifier to snake case: `total_string`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalString1` should have a snake case name
[INFO] [stderr]   --> src/person.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let mut totalString1 = format!("");
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `total_string1`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.27s
[INFO] running `"docker" "inspect" "e3df246a54610d38b6f2d9e764ed2dba66f458fdeaa01205611865cd5e0f3cce"`
[INFO] running `"docker" "rm" "-f" "e3df246a54610d38b6f2d9e764ed2dba66f458fdeaa01205611865cd5e0f3cce"`
[INFO] [stdout] e3df246a54610d38b6f2d9e764ed2dba66f458fdeaa01205611865cd5e0f3cce
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 08c4269077191523b4d6d5d86fe4453bf3cf64c85c8d879b3ddbf52c8126e79b
[INFO] running `"docker" "start" "-a" "08c4269077191523b4d6d5d86fe4453bf3cf64c85c8d879b3ddbf52c8126e79b"`
[INFO] [stderr]    Compiling v_1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `DateTime`, `Utc`
[INFO] [stderr]   --> src/main.rs:11:14
[INFO] [stderr]    |
[INFO] [stderr] 11 | use chrono::{DateTime,Utc};
[INFO] [stderr]    |              ^^^^^^^^ ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stderr]   --> src/main.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::time::{SystemTime,UNIX_EPOCH};
[INFO] [stderr]    |                 ^^^^^^^^^^ ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type `block__chain` should have an upper camel case name
[INFO] [stderr]    --> src/block.rs:207:12
[INFO] [stderr]     |
[INFO] [stderr] 207 | pub struct block__chain<'a,'b>{
[INFO] [stderr]     |            ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `BlockChain`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `block::current_time`
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use block::current_time;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `block::block__chain`
[INFO] [stderr]   --> src/main.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use block::block__chain;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `person::Person`
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use person::Person;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `time` is never read
[INFO] [stderr]    --> src/block.rs:360:17
[INFO] [stderr]     |
[INFO] [stderr] 360 |         let mut time = String::new();
[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: value assigned to `st` is never read
[INFO] [stderr]    --> src/block.rs:370:13
[INFO] [stderr]     |
[INFO] [stderr] 370 |     let mut st = String::new();
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `totalString1` is never read
[INFO] [stderr]    --> src/block.rs:377:13
[INFO] [stderr]     |
[INFO] [stderr] 377 |     let mut totalString1 = format!("");
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `totalString1` is never read
[INFO] [stderr]    --> src/block.rs:380:13
[INFO] [stderr]     |
[INFO] [stderr] 380 |     let mut totalString1 = format!("");
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `value_hash` is never read
[INFO] [stderr]    --> src/block.rs:283:21
[INFO] [stderr]     |
[INFO] [stderr] 283 |             let mut value_hash: Vec<u8> = Vec::new();
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `value_hash` is never read
[INFO] [stderr]    --> src/block.rs:300:21
[INFO] [stderr]     |
[INFO] [stderr] 300 |             let mut value_hash: Vec<u8> = Vec::new();
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `block`
[INFO] [stderr]    --> src/block.rs:313:30
[INFO] [stderr]     |
[INFO] [stderr] 313 |         fn mine_block(&self, block: &[Block]){
[INFO] [stderr]     |                              ^^^^^ help: consider prefixing with an underscore: `_block`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `blocks`
[INFO] [stderr]    --> src/block.rs:352:26
[INFO] [stderr]     |
[INFO] [stderr] 352 |         fn checking_hash(blocks: &Vec<Block>) -> bool{
[INFO] [stderr]     |                          ^^^^^^ help: consider prefixing with an underscore: `_blocks`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `totalString1` is never read
[INFO] [stderr]   --> src/person.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let mut totalString1 = format!("");
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut person1 = block::Person::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:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut person2 = block::Person{
[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:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut person3 = block::Person{
[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:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let mut first_block = Block::genesis_block(&vector_person);
[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:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let mut person4 = block::Person{
[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/person.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut value4 =  10;
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Person`
[INFO] [stderr]  --> src/person.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Person{
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/person.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn new() -> Self{
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_instance`
[INFO] [stderr]   --> src/person.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new_instance(public_key: String,private_key: String,balance: u64) -> Person{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `output`
[INFO] [stderr]   --> src/person.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn output(&self){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Human`
[INFO] [stderr]   --> src/person.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub type Human = Vec<Person>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `human_to_str`
[INFO] [stderr]   --> src/person.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn human_to_str(human:  &Human) -> String{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Testing`
[INFO] [stderr]   --> src/person.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub struct Testing{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_instance`
[INFO] [stderr]   --> src/person.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn new_instance(vect: Vec<i32>) -> Testing{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `output`
[INFO] [stderr]   --> src/person.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn output(&self){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/person.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn main(){
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vector_`
[INFO] [stderr]   --> src/person.rs:79:1
[INFO] [stderr]    |
[INFO] [stderr] 79 | pub fn vector_(vector: &Vec<Person>){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalString` should have a snake case name
[INFO] [stderr]    --> src/block.rs:376:13
[INFO] [stderr]     |
[INFO] [stderr] 376 |     let mut totalString = format!("");
[INFO] [stderr]     |             ^^^^^^^^^^^ help: convert the identifier to snake case: `total_string`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalString1` should have a snake case name
[INFO] [stderr]    --> src/block.rs:377:13
[INFO] [stderr]     |
[INFO] [stderr] 377 |     let mut totalString1 = format!("");
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `total_string1`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalString` should have a snake case name
[INFO] [stderr]    --> src/block.rs:379:13
[INFO] [stderr]     |
[INFO] [stderr] 379 |     let mut totalString = format!("");
[INFO] [stderr]     |             ^^^^^^^^^^^ help: convert the identifier to snake case: `total_string`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalString1` should have a snake case name
[INFO] [stderr]    --> src/block.rs:380:13
[INFO] [stderr]     |
[INFO] [stderr] 380 |     let mut totalString1 = format!("");
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `total_string1`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalString` should have a snake case name
[INFO] [stderr]   --> src/person.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let mut totalString = format!("");
[INFO] [stderr]    |             ^^^^^^^^^^^ help: convert the identifier to snake case: `total_string`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalString1` should have a snake case name
[INFO] [stderr]   --> src/person.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let mut totalString1 = format!("");
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `total_string1`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "08c4269077191523b4d6d5d86fe4453bf3cf64c85c8d879b3ddbf52c8126e79b"`
[INFO] running `"docker" "rm" "-f" "08c4269077191523b4d6d5d86fe4453bf3cf64c85c8d879b3ddbf52c8126e79b"`
[INFO] [stdout] 08c4269077191523b4d6d5d86fe4453bf3cf64c85c8d879b3ddbf52c8126e79b
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] b31174ceb7ce2dbd2ae605d2aecf5aba9cfca5f88c82ceaa65ef33e6c58015d7
[INFO] running `"docker" "start" "-a" "b31174ceb7ce2dbd2ae605d2aecf5aba9cfca5f88c82ceaa65ef33e6c58015d7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/v_1-1fda9f1c38282709
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b31174ceb7ce2dbd2ae605d2aecf5aba9cfca5f88c82ceaa65ef33e6c58015d7"`
[INFO] running `"docker" "rm" "-f" "b31174ceb7ce2dbd2ae605d2aecf5aba9cfca5f88c82ceaa65ef33e6c58015d7"`
[INFO] [stdout] b31174ceb7ce2dbd2ae605d2aecf5aba9cfca5f88c82ceaa65ef33e6c58015d7