Oct 12 23:28:03.681 INFO checking collin5/bc-rust against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 23:28:03.682 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-1/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 12 23:28:03.981 INFO blam! bf7c61e4fe28eb2c892a498476c879604f54f468954e6911dfb245334ed70423
Oct 12 23:28:03.986 INFO running `"docker" "start" "-a" "bf7c61e4fe28eb2c892a498476c879604f54f468954e6911dfb245334ed70423"`
Oct 12 23:28:04.806 INFO kablam! usermod: no changes
Oct 12 23:28:04.919 INFO kablam!     Checking serde_json v1.0.12
Oct 12 23:28:07.158 INFO kablam!     Checking blockchain v0.1.0 (/source)
Oct 12 23:28:08.391 INFO kablam! warning: unused import: `std::io`
Oct 12 23:28:08.391 INFO kablam!  --> src/main.rs:4:5
Oct 12 23:28:08.391 INFO kablam!   |
Oct 12 23:28:08.391 INFO kablam! 4 | use std::io;
Oct 12 23:28:08.391 INFO kablam!   |     ^^^^^^^
Oct 12 23:28:08.391 INFO kablam!   |
Oct 12 23:28:08.392 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 23:28:08.392 INFO kablam! 
Oct 12 23:28:08.392 INFO kablam! warning: unused import: `std::io::Write`
Oct 12 23:28:08.392 INFO kablam!  --> src/main.rs:5:5
Oct 12 23:28:08.392 INFO kablam!   |
Oct 12 23:28:08.392 INFO kablam! 5 | use std::io::Write;
Oct 12 23:28:08.392 INFO kablam!   |     ^^^^^^^^^^^^^^
Oct 12 23:28:08.392 INFO kablam! 
Oct 12 23:28:08.393 INFO kablam! warning: unused import: `std::process`
Oct 12 23:28:08.393 INFO kablam!  --> src/main.rs:6:5
Oct 12 23:28:08.393 INFO kablam!   |
Oct 12 23:28:08.393 INFO kablam! 6 | use std::process;
Oct 12 23:28:08.393 INFO kablam!   |     ^^^^^^^^^^^^
Oct 12 23:28:08.393 INFO kablam! 
Oct 12 23:28:08.453 INFO kablam! warning: unused import: `std::io`
Oct 12 23:28:08.453 INFO kablam!  --> src/main.rs:4:5
Oct 12 23:28:08.453 INFO kablam!   |
Oct 12 23:28:08.453 INFO kablam! 4 | use std::io;
Oct 12 23:28:08.453 INFO kablam!   |     ^^^^^^^
Oct 12 23:28:08.453 INFO kablam!   |
Oct 12 23:28:08.453 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 23:28:08.453 INFO kablam! 
Oct 12 23:28:08.460 INFO kablam! warning: unused import: `std::io::Write`
Oct 12 23:28:08.460 INFO kablam!  --> src/main.rs:5:5
Oct 12 23:28:08.461 INFO kablam!   |
Oct 12 23:28:08.461 INFO kablam! 5 | use std::io::Write;
Oct 12 23:28:08.461 INFO kablam!   |     ^^^^^^^^^^^^^^
Oct 12 23:28:08.461 INFO kablam! 
Oct 12 23:28:08.461 INFO kablam! warning: unused import: `std::process`
Oct 12 23:28:08.461 INFO kablam!  --> src/main.rs:6:5
Oct 12 23:28:08.461 INFO kablam!   |
Oct 12 23:28:08.461 INFO kablam! 6 | use std::process;
Oct 12 23:28:08.461 INFO kablam!   |     ^^^^^^^^^^^^
Oct 12 23:28:08.461 INFO kablam! 
Oct 12 23:28:08.703 INFO kablam! warning: struct is never constructed: `Blockheader`
Oct 12 23:28:08.703 INFO kablam!   --> src/blockchain.rs:17:1
Oct 12 23:28:08.703 INFO kablam!    |
Oct 12 23:28:08.703 INFO kablam! 17 | pub struct Blockheader {
Oct 12 23:28:08.703 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.703 INFO kablam!    |
Oct 12 23:28:08.705 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 23:28:08.705 INFO kablam! 
Oct 12 23:28:08.705 INFO kablam! warning: struct is never constructed: `Block`
Oct 12 23:28:08.705 INFO kablam!   --> src/blockchain.rs:26:1
Oct 12 23:28:08.705 INFO kablam!    |
Oct 12 23:28:08.705 INFO kablam! 26 | pub struct Block {
Oct 12 23:28:08.705 INFO kablam!    | ^^^^^^^^^^^^^^^^
Oct 12 23:28:08.705 INFO kablam! 
Oct 12 23:28:08.705 INFO kablam! warning: struct is never constructed: `Chain`
Oct 12 23:28:08.705 INFO kablam!   --> src/blockchain.rs:32:1
Oct 12 23:28:08.705 INFO kablam!    |
Oct 12 23:28:08.705 INFO kablam! 32 | pub struct Chain {
Oct 12 23:28:08.705 INFO kablam!    | ^^^^^^^^^^^^^^^^
Oct 12 23:28:08.705 INFO kablam! 
Oct 12 23:28:08.705 INFO kablam! warning: method is never used: `new`
Oct 12 23:28:08.705 INFO kablam!   --> src/blockchain.rs:41:5
Oct 12 23:28:08.705 INFO kablam!    |
Oct 12 23:28:08.705 INFO kablam! 41 |     pub fn new(addr: String, difficulty: u32) -> Chain {
Oct 12 23:28:08.705 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.705 INFO kablam! 
Oct 12 23:28:08.705 INFO kablam! warning: method is never used: `new_trans`
Oct 12 23:28:08.705 INFO kablam!   --> src/blockchain.rs:53:5
Oct 12 23:28:08.705 INFO kablam!    |
Oct 12 23:28:08.705 INFO kablam! 53 |     pub fn new_trans(&mut self, sender: String, reciever: String, amount: f32) -> bool {
Oct 12 23:28:08.705 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.705 INFO kablam! 
Oct 12 23:28:08.705 INFO kablam! warning: method is never used: `last_hash`
Oct 12 23:28:08.705 INFO kablam!   --> src/blockchain.rs:63:5
Oct 12 23:28:08.705 INFO kablam!    |
Oct 12 23:28:08.705 INFO kablam! 63 |     pub fn last_hash(&self) -> String {
Oct 12 23:28:08.705 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.705 INFO kablam! 
Oct 12 23:28:08.705 INFO kablam! warning: method is never used: `update_difficulty`
Oct 12 23:28:08.706 INFO kablam!   --> src/blockchain.rs:71:5
Oct 12 23:28:08.706 INFO kablam!    |
Oct 12 23:28:08.706 INFO kablam! 71 |     pub fn update_difficulty(&mut self, difficulty: u32) -> bool {
Oct 12 23:28:08.706 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.706 INFO kablam! 
Oct 12 23:28:08.706 INFO kablam! warning: method is never used: `update_reward`
Oct 12 23:28:08.706 INFO kablam!   --> src/blockchain.rs:76:5
Oct 12 23:28:08.706 INFO kablam!    |
Oct 12 23:28:08.706 INFO kablam! 76 |     pub fn update_reward(&mut self, reward: f32) -> bool {
Oct 12 23:28:08.706 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.706 INFO kablam! 
Oct 12 23:28:08.706 INFO kablam! warning: method is never used: `gen_new_block`
Oct 12 23:28:08.706 INFO kablam!   --> src/blockchain.rs:81:5
Oct 12 23:28:08.706 INFO kablam!    |
Oct 12 23:28:08.706 INFO kablam! 81 |     pub fn gen_new_block(&mut self) -> bool {
Oct 12 23:28:08.706 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.706 INFO kablam! 
Oct 12 23:28:08.706 INFO kablam! warning: method is never used: `get_merkle`
Oct 12 23:28:08.706 INFO kablam!    --> src/blockchain.rs:113:5
Oct 12 23:28:08.706 INFO kablam!     |
Oct 12 23:28:08.706 INFO kablam! 113 |     fn get_merkle(current_trans: Vec<Transation>) -> String {
Oct 12 23:28:08.706 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.706 INFO kablam! 
Oct 12 23:28:08.706 INFO kablam! warning: method is never used: `proof_of_work`
Oct 12 23:28:08.706 INFO kablam!    --> src/blockchain.rs:136:5
Oct 12 23:28:08.706 INFO kablam!     |
Oct 12 23:28:08.706 INFO kablam! 136 |     pub fn proof_of_work(header: &mut Blockheader) {
Oct 12 23:28:08.706 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.706 INFO kablam! 
Oct 12 23:28:08.706 INFO kablam! warning: method is never used: `hash`
Oct 12 23:28:08.706 INFO kablam!    --> src/blockchain.rs:156:5
Oct 12 23:28:08.706 INFO kablam!     |
Oct 12 23:28:08.706 INFO kablam! 156 |     pub fn hash<T: serde::Serialize>(item: &T) -> String {
Oct 12 23:28:08.706 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.706 INFO kablam! 
Oct 12 23:28:08.706 INFO kablam! warning: method is never used: `hex_to_str`
Oct 12 23:28:08.706 INFO kablam!    --> src/blockchain.rs:165:5
Oct 12 23:28:08.706 INFO kablam!     |
Oct 12 23:28:08.706 INFO kablam! 165 |     pub fn hex_to_str(res: &[u8]) -> String {
Oct 12 23:28:08.706 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.706 INFO kablam! 
Oct 12 23:28:08.814 INFO kablam! warning: struct is never constructed: `Blockheader`
Oct 12 23:28:08.814 INFO kablam!   --> src/blockchain.rs:17:1
Oct 12 23:28:08.815 INFO kablam!    |
Oct 12 23:28:08.815 INFO kablam! 17 | pub struct Blockheader {
Oct 12 23:28:08.815 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.815 INFO kablam!    |
Oct 12 23:28:08.815 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 23:28:08.815 INFO kablam! 
Oct 12 23:28:08.817 INFO kablam! warning: struct is never constructed: `Block`
Oct 12 23:28:08.817 INFO kablam!   --> src/blockchain.rs:26:1
Oct 12 23:28:08.818 INFO kablam!    |
Oct 12 23:28:08.818 INFO kablam! 26 | pub struct Block {
Oct 12 23:28:08.818 INFO kablam!    | ^^^^^^^^^^^^^^^^
Oct 12 23:28:08.818 INFO kablam! 
Oct 12 23:28:08.818 INFO kablam! warning: struct is never constructed: `Chain`
Oct 12 23:28:08.818 INFO kablam!   --> src/blockchain.rs:32:1
Oct 12 23:28:08.818 INFO kablam!    |
Oct 12 23:28:08.818 INFO kablam! 32 | pub struct Chain {
Oct 12 23:28:08.819 INFO kablam!    | ^^^^^^^^^^^^^^^^
Oct 12 23:28:08.819 INFO kablam! 
Oct 12 23:28:08.820 INFO kablam! warning: method is never used: `new`
Oct 12 23:28:08.820 INFO kablam!   --> src/blockchain.rs:41:5
Oct 12 23:28:08.820 INFO kablam!    |
Oct 12 23:28:08.820 INFO kablam! 41 |     pub fn new(addr: String, difficulty: u32) -> Chain {
Oct 12 23:28:08.820 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.820 INFO kablam! 
Oct 12 23:28:08.820 INFO kablam! warning: method is never used: `new_trans`
Oct 12 23:28:08.820 INFO kablam!   --> src/blockchain.rs:53:5
Oct 12 23:28:08.821 INFO kablam!    |
Oct 12 23:28:08.821 INFO kablam! 53 |     pub fn new_trans(&mut self, sender: String, reciever: String, amount: f32) -> bool {
Oct 12 23:28:08.821 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.822 INFO kablam! 
Oct 12 23:28:08.822 INFO kablam! warning: method is never used: `last_hash`
Oct 12 23:28:08.823 INFO kablam!   --> src/blockchain.rs:63:5
Oct 12 23:28:08.823 INFO kablam!    |
Oct 12 23:28:08.823 INFO kablam! 63 |     pub fn last_hash(&self) -> String {
Oct 12 23:28:08.823 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.823 INFO kablam! 
Oct 12 23:28:08.823 INFO kablam! warning: method is never used: `update_difficulty`
Oct 12 23:28:08.824 INFO kablam!   --> src/blockchain.rs:71:5
Oct 12 23:28:08.824 INFO kablam!    |
Oct 12 23:28:08.824 INFO kablam! 71 |     pub fn update_difficulty(&mut self, difficulty: u32) -> bool {
Oct 12 23:28:08.824 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.824 INFO kablam! 
Oct 12 23:28:08.824 INFO kablam! warning: method is never used: `update_reward`
Oct 12 23:28:08.825 INFO kablam!   --> src/blockchain.rs:76:5
Oct 12 23:28:08.825 INFO kablam!    |
Oct 12 23:28:08.825 INFO kablam! 76 |     pub fn update_reward(&mut self, reward: f32) -> bool {
Oct 12 23:28:08.825 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.825 INFO kablam! 
Oct 12 23:28:08.825 INFO kablam! warning: method is never used: `gen_new_block`
Oct 12 23:28:08.825 INFO kablam!   --> src/blockchain.rs:81:5
Oct 12 23:28:08.825 INFO kablam!    |
Oct 12 23:28:08.825 INFO kablam! 81 |     pub fn gen_new_block(&mut self) -> bool {
Oct 12 23:28:08.825 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.825 INFO kablam! 
Oct 12 23:28:08.825 INFO kablam! warning: method is never used: `get_merkle`
Oct 12 23:28:08.825 INFO kablam!    --> src/blockchain.rs:113:5
Oct 12 23:28:08.825 INFO kablam!     |
Oct 12 23:28:08.825 INFO kablam! 113 |     fn get_merkle(current_trans: Vec<Transation>) -> String {
Oct 12 23:28:08.825 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.825 INFO kablam! 
Oct 12 23:28:08.825 INFO kablam! warning: method is never used: `proof_of_work`
Oct 12 23:28:08.825 INFO kablam!    --> src/blockchain.rs:136:5
Oct 12 23:28:08.825 INFO kablam!     |
Oct 12 23:28:08.825 INFO kablam! 136 |     pub fn proof_of_work(header: &mut Blockheader) {
Oct 12 23:28:08.825 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.825 INFO kablam! 
Oct 12 23:28:08.825 INFO kablam! warning: method is never used: `hash`
Oct 12 23:28:08.825 INFO kablam!    --> src/blockchain.rs:156:5
Oct 12 23:28:08.825 INFO kablam!     |
Oct 12 23:28:08.825 INFO kablam! 156 |     pub fn hash<T: serde::Serialize>(item: &T) -> String {
Oct 12 23:28:08.825 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.825 INFO kablam! 
Oct 12 23:28:08.825 INFO kablam! warning: method is never used: `hex_to_str`
Oct 12 23:28:08.825 INFO kablam!    --> src/blockchain.rs:165:5
Oct 12 23:28:08.825 INFO kablam!     |
Oct 12 23:28:08.825 INFO kablam! 165 |     pub fn hex_to_str(res: &[u8]) -> String {
Oct 12 23:28:08.825 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:28:08.825 INFO kablam! 
Oct 12 23:28:08.889 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.06s
Oct 12 23:28:08.894 INFO kablam! su: No module specific data is present
Oct 12 23:28:09.953 INFO running `"docker" "rm" "-f" "bf7c61e4fe28eb2c892a498476c879604f54f468954e6911dfb245334ed70423"`
Oct 12 23:28:10.252 INFO blam! bf7c61e4fe28eb2c892a498476c879604f54f468954e6911dfb245334ed70423