[INFO] cloning repository https://github.com/jtranberg/rust_frontend_blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jtranberg/rust_frontend_blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtranberg%2Frust_frontend_blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtranberg%2Frust_frontend_blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a40b6fd99037b0b0c86fa8b3f02eb2488f91b17f
[INFO] checking jtranberg/rust_frontend_blockchain against master#b115ea2e6a07e440e7cc18b08644fc0a2265391b for pr-139493-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtranberg%2Frust_frontend_blockchain" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jtranberg/rust_frontend_blockchain
[INFO] finished tweaking git repo https://github.com/jtranberg/rust_frontend_blockchain
[INFO] tweaked toml for git repo https://github.com/jtranberg/rust_frontend_blockchain written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jtranberg/rust_frontend_blockchain on toolchain b115ea2e6a07e440e7cc18b08644fc0a2265391b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b115ea2e6a07e440e7cc18b08644fc0a2265391b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jtranberg/rust_frontend_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" "+b115ea2e6a07e440e7cc18b08644fc0a2265391b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/blockchain.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Account {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 8 |     pub id: String,
[INFO] [stdout]   |         ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Account` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `from`, `to`, and `amount` are never read
[INFO] [stdout]   --> src/blockchain.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Transaction {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 14 |     pub from: Option<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 15 |     pub to: String,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 16 |     pub amount: i64,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Transaction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `transactions` and `timestamp` are never read
[INFO] [stdout]   --> src/blockchain.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Block {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 21 |     pub transactions: Vec<Transaction>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 22 |     pub timestamp: u64,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `chain` and `block_count` are never read
[INFO] [stdout]   --> src/blockchain.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Blockchain {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 27 |     pub accounts: HashMap<String, Account>,
[INFO] [stdout] 28 |     pub chain: Vec<Block>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 29 |     pub pending_transactions: Vec<Transaction>,
[INFO] [stdout] 30 |     pub block_count: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Blockchain` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `mint_block` and `start_auto_minting` are never used
[INFO] [stdout]   --> src/blockchain.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Blockchain {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn mint_block(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |     pub fn start_auto_minting(blockchain: Arc<Mutex<Self>>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `current_timestamp` is never used
[INFO] [stdout]    --> src/blockchain.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub fn current_timestamp() -> u64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/blockchain.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Account {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 8 |     pub id: String,
[INFO] [stdout]   |         ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Account` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `from`, `to`, and `amount` are never read
[INFO] [stdout]   --> src/blockchain.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Transaction {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 14 |     pub from: Option<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 15 |     pub to: String,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 16 |     pub amount: i64,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Transaction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `transactions` and `timestamp` are never read
[INFO] [stdout]   --> src/blockchain.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Block {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 21 |     pub transactions: Vec<Transaction>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 22 |     pub timestamp: u64,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `chain` and `block_count` are never read
[INFO] [stdout]   --> src/blockchain.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Blockchain {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 27 |     pub accounts: HashMap<String, Account>,
[INFO] [stdout] 28 |     pub chain: Vec<Block>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 29 |     pub pending_transactions: Vec<Transaction>,
[INFO] [stdout] 30 |     pub block_count: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Blockchain` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `mint_block` and `start_auto_minting` are never used
[INFO] [stdout]   --> src/blockchain.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Blockchain {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn mint_block(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |     pub fn start_auto_minting(blockchain: Arc<Mutex<Self>>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `current_timestamp` is never used
[INFO] [stdout]    --> src/blockchain.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub fn current_timestamp() -> u64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.88s
[INFO] running `Command { std: "docker" "inspect" "fbeda9c010e446e7fc9e0f7bcf5311dd4adb09039a7ac50a20301f637f17b937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbeda9c010e446e7fc9e0f7bcf5311dd4adb09039a7ac50a20301f637f17b937", kill_on_drop: false }`
[INFO] [stdout] fbeda9c010e446e7fc9e0f7bcf5311dd4adb09039a7ac50a20301f637f17b937