[INFO] cloning repository https://github.com/maksymchornobab/zelle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maksymchornobab/zelle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaksymchornobab%2Fzelle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaksymchornobab%2Fzelle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ade04ffe1adb46599f26fa63fedddfb86b96093d
[INFO] checking maksymchornobab/zelle against c397dae808f70caebab1fc4e11b3edf7e59f58c7 for pr-158759-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaksymchornobab%2Fzelle" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/maksymchornobab/zelle
[INFO] finished tweaking git repo https://github.com/maksymchornobab/zelle
[INFO] tweaked toml for git repo https://github.com/maksymchornobab/zelle written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maksymchornobab/zelle on toolchain c397dae808f70caebab1fc4e11b3edf7e59f58c7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c397dae808f70caebab1fc4e11b3edf7e59f58c7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/maksymchornobab/zelle 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" "+c397dae808f70caebab1fc4e11b3edf7e59f58c7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/maksymchornobab/verteidiger`
[INFO] [stderr]     Updating git repository `https://github.com/maksymchornobab/weise`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 61908e93da3bf3a8132534dff684629237d53b4ec1d987216a76b94cf6331be4
[INFO] running `Command { std: "docker" "start" "61908e93da3bf3a8132534dff684629237d53b4ec1d987216a76b94cf6331be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61908e93da3bf3a8132534dff684629237d53b4ec1d987216a76b94cf6331be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "61908e93da3bf3a8132534dff684629237d53b4ec1d987216a76b94cf6331be4" "/opt/rustwide/cargo-home/bin/cargo" "+c397dae808f70caebab1fc4e11b3edf7e59f58c7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61908e93da3bf3a8132534dff684629237d53b4ec1d987216a76b94cf6331be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "61908e93da3bf3a8132534dff684629237d53b4ec1d987216a76b94cf6331be4" "/opt/rustwide/cargo-home/bin/cargo" "+c397dae808f70caebab1fc4e11b3edf7e59f58c7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking zelle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Verifier`
[INFO] [stdout]  --> src/wallet.rs:1:66
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ed25519_dalek::{SigningKey, VerifyingKey, Signature, Signer, Verifier};
[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: `Verifier`
[INFO] [stdout]  --> src/wallet.rs:1:66
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ed25519_dalek::{SigningKey, VerifyingKey, Signature, Signer, Verifier};
[INFO] [stdout]   |                                                                  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_transaction_to_mempool` is never used
[INFO] [stdout]   --> src/blockchain.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Blockchain {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn add_transaction_to_mempool(&mut self, tx: Transaction) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sign` is never used
[INFO] [stdout]    --> src/wallet.rs:201:12
[INFO] [stdout]     |
[INFO] [stdout]  99 | impl Wallet {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 201 |     pub fn sign(&self, message: &[u8]) -> Signature { 
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StateChannel` is never constructed
[INFO] [stdout]  --> src/channel.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct StateChannel {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `open`, `send_micro_transaction`, and `close_and_settle` are never used
[INFO] [stdout]   --> src/channel.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl StateChannel {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 14 |     pub fn open(wallet_a: &Wallet, wallet_b: &Wallet, deposit_a: f64, deposit_b: f64) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn send_micro_transaction(&mut self, from_wallet: &Wallet, to_address: String, amount: f64) -> Option<Transaction> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn close_and_settle(&mut self, from_wallet: &Wallet) -> Transaction {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/blockchain.rs:89:52
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let last_block = self.chain.last().unwrap().clone();
[INFO] [stdout]    |                                                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Block` does not implement `Clone`, so calling `clone` on `&Block` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 89 -         let last_block = self.chain.last().unwrap().clone();
[INFO] [stdout] 89 +         let last_block = self.chain.last().unwrap();
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Block`, implement `Clone` for it
[INFO] [stdout]    |
[INFO] [stdout]  6 + #[derive(Clone)]
[INFO] [stdout]  7 | pub struct Block {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_transaction_to_mempool` is never used
[INFO] [stdout]   --> src/blockchain.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Blockchain {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn add_transaction_to_mempool(&mut self, tx: Transaction) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sign` is never used
[INFO] [stdout]    --> src/wallet.rs:201:12
[INFO] [stdout]     |
[INFO] [stdout]  99 | impl Wallet {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 201 |     pub fn sign(&self, message: &[u8]) -> Signature { 
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StateChannel` is never constructed
[INFO] [stdout]  --> src/channel.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct StateChannel {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `open`, `send_micro_transaction`, and `close_and_settle` are never used
[INFO] [stdout]   --> src/channel.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl StateChannel {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 14 |     pub fn open(wallet_a: &Wallet, wallet_b: &Wallet, deposit_a: f64, deposit_b: f64) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn send_micro_transaction(&mut self, from_wallet: &Wallet, to_address: String, amount: f64) -> Option<Transaction> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn close_and_settle(&mut self, from_wallet: &Wallet) -> Transaction {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/blockchain.rs:89:52
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let last_block = self.chain.last().unwrap().clone();
[INFO] [stdout]    |                                                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Block` does not implement `Clone`, so calling `clone` on `&Block` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 89 -         let last_block = self.chain.last().unwrap().clone();
[INFO] [stdout] 89 +         let last_block = self.chain.last().unwrap();
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Block`, implement `Clone` for it
[INFO] [stdout]    |
[INFO] [stdout]  6 + #[derive(Clone)]
[INFO] [stdout]  7 | pub struct Block {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "61908e93da3bf3a8132534dff684629237d53b4ec1d987216a76b94cf6331be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61908e93da3bf3a8132534dff684629237d53b4ec1d987216a76b94cf6331be4", kill_on_drop: false }`
[INFO] [stdout] 61908e93da3bf3a8132534dff684629237d53b4ec1d987216a76b94cf6331be4
