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[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 }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a40b6fd99037b0b0c86fa8b3f02eb2488f91b17f
[INFO] checking jtranberg/rust_frontend_blockchain against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[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 bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f650de7ecddb847c6683f3d3ac72dce664541833d024adf9558948547dbc48ad
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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 34.92s
[INFO] running `Command { std: "docker" "inspect" "f650de7ecddb847c6683f3d3ac72dce664541833d024adf9558948547dbc48ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f650de7ecddb847c6683f3d3ac72dce664541833d024adf9558948547dbc48ad", kill_on_drop: false }`
[INFO] [stdout] f650de7ecddb847c6683f3d3ac72dce664541833d024adf9558948547dbc48ad
