[INFO] cloning repository https://github.com/zqubit/334f21
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zqubit/334f21" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzqubit%2F334f21", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 510f672183112b6ce96bc4f1e9542ca52451df47
[INFO] checking zqubit/334f21 against nightly-2024-02-05 for check-cfg-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzqubit%2F334f21" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zqubit/334f21 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zqubit/334f21
[INFO] finished tweaking git repo https://github.com/zqubit/334f21
[INFO] tweaked toml for git repo https://github.com/zqubit/334f21 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zqubit/334f21 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: unused imports: `EdDSAParameters`, `VerificationAlgorithm`
[INFO] [stdout]  --> src/transaction.rs:2:59
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters};
[INFO] [stdout]   |                                                           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EdDSAParameters`, `VerificationAlgorithm`
[INFO] [stdout]  --> src/transaction.rs:2:59
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters};
[INFO] [stdout]   |                                                           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]   --> src/blockchain.rs:14:30
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn insert(&mut self, block: &Block) {
[INFO] [stdout]    |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]  --> src/crypto/merkle.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new<T>(data: &[T]) -> Self where T: Hashable, {
[INFO] [stdout]   |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/crypto/merkle.rs:18:25
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn proof(&self, index: usize) -> Vec<H256> {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `datum`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_datum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `proof`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:42
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_proof`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:58
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `leaf_size`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:72
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                                                                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_leaf_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> src/block.rs:19:34
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn generate_random_block(parent: &H256) -> Block {
[INFO] [stdout]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]   --> src/blockchain.rs:14:30
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn insert(&mut self, block: &Block) {
[INFO] [stdout]    |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]  --> src/crypto/merkle.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new<T>(data: &[T]) -> Self where T: Hashable, {
[INFO] [stdout]   |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/crypto/merkle.rs:18:25
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn proof(&self, index: usize) -> Vec<H256> {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `datum`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_datum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `proof`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:42
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_proof`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:58
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `leaf_size`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:72
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                                                                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_leaf_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/transaction.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn sign(t: &Transaction, key: &Ed25519KeyPair) -> Signature {
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]  --> src/transaction.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn sign(t: &Transaction, key: &Ed25519KeyPair) -> Signature {
[INFO] [stdout]   |                              ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/transaction.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn verify(t: &Transaction, public_key: &<Ed25519KeyPair as KeyPair>::PublicKey, signature: &Signature) -> bool {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `public_key`
[INFO] [stdout]   --> src/transaction.rs:14:32
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn verify(t: &Transaction, public_key: &<Ed25519KeyPair as KeyPair>::PublicKey, signature: &Signature) -> bool {
[INFO] [stdout]    |                                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_public_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signature`
[INFO] [stdout]   --> src/transaction.rs:14:85
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn verify(t: &Transaction, public_key: &<Ed25519KeyPair as KeyPair>::PublicKey, signature: &Signature) -> bool {
[INFO] [stdout]    |                                                                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signature`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `server` is never read
[INFO] [stdout]   --> src/miner.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Context {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     server: ServerHandle,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `server` is never read
[INFO] [stdout]   --> src/network/worker.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Context {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     server: ServerHandle,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Context` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/transaction.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn sign(t: &Transaction, key: &Ed25519KeyPair) -> Signature {
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]  --> src/transaction.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn sign(t: &Transaction, key: &Ed25519KeyPair) -> Signature {
[INFO] [stdout]   |                              ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/transaction.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn verify(t: &Transaction, public_key: &<Ed25519KeyPair as KeyPair>::PublicKey, signature: &Signature) -> bool {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `public_key`
[INFO] [stdout]   --> src/transaction.rs:14:32
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn verify(t: &Transaction, public_key: &<Ed25519KeyPair as KeyPair>::PublicKey, signature: &Signature) -> bool {
[INFO] [stdout]    |                                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_public_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signature`
[INFO] [stdout]   --> src/transaction.rs:14:85
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn verify(t: &Transaction, public_key: &<Ed25519KeyPair as KeyPair>::PublicKey, signature: &Signature) -> bool {
[INFO] [stdout]    |                                                                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signature`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `server` is never read
[INFO] [stdout]   --> src/miner.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Context {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     server: ServerHandle,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `server` is never read
[INFO] [stdout]   --> src/network/worker.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Context {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     server: ServerHandle,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Context` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.32s
[INFO] running `Command { std: "docker" "inspect" "870d6c812eb7e3b4ba06d23a985dea38e12503dda3e01dfe56d0615733d98823", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "870d6c812eb7e3b4ba06d23a985dea38e12503dda3e01dfe56d0615733d98823", kill_on_drop: false }`
[INFO] [stdout] 870d6c812eb7e3b4ba06d23a985dea38e12503dda3e01dfe56d0615733d98823
[INFO] checking zqubit/334f21 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzqubit%2F334f21" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zqubit/334f21 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zqubit/334f21
[INFO] finished tweaking git repo https://github.com/zqubit/334f21
[INFO] tweaked toml for git repo https://github.com/zqubit/334f21 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/zqubit/334f21 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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_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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37aa692fbda27d87126fe1ccfdb68c42980d2cfc28159ea835bdedf004cb77ef
[INFO] running `Command { std: "docker" "start" "-a" "37aa692fbda27d87126fe1ccfdb68c42980d2cfc28159ea835bdedf004cb77ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37aa692fbda27d87126fe1ccfdb68c42980d2cfc28159ea835bdedf004cb77ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37aa692fbda27d87126fe1ccfdb68c42980d2cfc28159ea835bdedf004cb77ef", kill_on_drop: false }`
[INFO] [stdout] 37aa692fbda27d87126fe1ccfdb68c42980d2cfc28159ea835bdedf004cb77ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Dunexpected_cfgs" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] a01aa1f8bab9fd0c4631eff7968b7bd790870128ec9444b52f01930eda325472
[INFO] running `Command { std: "docker" "start" "-a" "a01aa1f8bab9fd0c4631eff7968b7bd790870128ec9444b52f01930eda325472", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling syn v1.0.5
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[INFO] [stderr]     Checking matches v0.1.8
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[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking scopeguard v1.0.0
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[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking rand_core v0.3.1
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[INFO] [stderr]    Compiling serde_derive v1.0.101
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[INFO] [stdout] error: unexpected `cfg` condition name: `test_utilities`
[INFO] [stdout]   --> src/block.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[cfg(any(test, test_utilities))]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(test_utilities)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]    = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `test_utilities`
[INFO] [stdout]   --> src/blockchain.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 | #[cfg(any(test, test_utilities))]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(test_utilities)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `test_utilities`
[INFO] [stdout]   --> src/blockchain.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |     #[cfg(any(test, test_utilities))]
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(test_utilities)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `test_utilities`
[INFO] [stdout]    --> src/crypto/hash.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 | #[cfg(any(test, test_utilities))]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(test_utilities)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `test_utilities`
[INFO] [stdout]   --> src/transaction.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[cfg(any(test, test_utilities))]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(test_utilities)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EdDSAParameters`, `VerificationAlgorithm`
[INFO] [stdout]  --> src/transaction.rs:2:59
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters};
[INFO] [stdout]   |                                                           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `test_utilities`
[INFO] [stdout]   --> src/block.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[cfg(any(test, test_utilities))]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(test_utilities)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]    = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `test_utilities`
[INFO] [stdout]   --> src/blockchain.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 | #[cfg(any(test, test_utilities))]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(test_utilities)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `test_utilities`
[INFO] [stdout]   --> src/blockchain.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |     #[cfg(any(test, test_utilities))]
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(test_utilities)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `test_utilities`
[INFO] [stdout]    --> src/crypto/hash.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 | #[cfg(any(test, test_utilities))]
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(test_utilities)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `test_utilities`
[INFO] [stdout]   --> src/transaction.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[cfg(any(test, test_utilities))]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(test_utilities)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EdDSAParameters`, `VerificationAlgorithm`
[INFO] [stdout]  --> src/transaction.rs:2:59
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ring::signature::{Ed25519KeyPair, Signature, KeyPair, VerificationAlgorithm, EdDSAParameters};
[INFO] [stdout]   |                                                           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]   --> src/blockchain.rs:14:30
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn insert(&mut self, block: &Block) {
[INFO] [stdout]    |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]  --> src/crypto/merkle.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new<T>(data: &[T]) -> Self where T: Hashable, {
[INFO] [stdout]   |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/crypto/merkle.rs:18:25
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn proof(&self, index: usize) -> Vec<H256> {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `datum`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_datum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `proof`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:42
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_proof`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:58
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `leaf_size`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:72
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                                                                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_leaf_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> src/block.rs:19:34
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn generate_random_block(parent: &H256) -> Block {
[INFO] [stdout]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]   --> src/blockchain.rs:14:30
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn insert(&mut self, block: &Block) {
[INFO] [stdout]    |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]  --> src/crypto/merkle.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new<T>(data: &[T]) -> Self where T: Hashable, {
[INFO] [stdout]   |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/crypto/merkle.rs:18:25
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn proof(&self, index: usize) -> Vec<H256> {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `datum`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_datum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `proof`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:42
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_proof`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:58
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `leaf_size`
[INFO] [stdout]   --> src/crypto/merkle.rs:25:72
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn verify(root: &H256, datum: &H256, proof: &[H256], index: usize, leaf_size: usize) -> bool {
[INFO] [stdout]    |                                                                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_leaf_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/transaction.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn sign(t: &Transaction, key: &Ed25519KeyPair) -> Signature {
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]  --> src/transaction.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn sign(t: &Transaction, key: &Ed25519KeyPair) -> Signature {
[INFO] [stdout]   |                              ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/transaction.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn verify(t: &Transaction, public_key: &<Ed25519KeyPair as KeyPair>::PublicKey, signature: &Signature) -> bool {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `public_key`
[INFO] [stdout]   --> src/transaction.rs:14:32
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn verify(t: &Transaction, public_key: &<Ed25519KeyPair as KeyPair>::PublicKey, signature: &Signature) -> bool {
[INFO] [stdout]    |                                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_public_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signature`
[INFO] [stdout]   --> src/transaction.rs:14:85
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn verify(t: &Transaction, public_key: &<Ed25519KeyPair as KeyPair>::PublicKey, signature: &Signature) -> bool {
[INFO] [stdout]    |                                                                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signature`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `server` is never read
[INFO] [stdout]   --> src/miner.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Context {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     server: ServerHandle,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `server` is never read
[INFO] [stdout]   --> src/network/worker.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Context {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     server: ServerHandle,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Context` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/transaction.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn sign(t: &Transaction, key: &Ed25519KeyPair) -> Signature {
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]  --> src/transaction.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn sign(t: &Transaction, key: &Ed25519KeyPair) -> Signature {
[INFO] [stdout]   |                              ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/transaction.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn verify(t: &Transaction, public_key: &<Ed25519KeyPair as KeyPair>::PublicKey, signature: &Signature) -> bool {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `public_key`
[INFO] [stdout]   --> src/transaction.rs:14:32
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn verify(t: &Transaction, public_key: &<Ed25519KeyPair as KeyPair>::PublicKey, signature: &Signature) -> bool {
[INFO] [stdout]    |                                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_public_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signature`
[INFO] [stdout]   --> src/transaction.rs:14:85
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn verify(t: &Transaction, public_key: &<Ed25519KeyPair as KeyPair>::PublicKey, signature: &Signature) -> bool {
[INFO] [stdout]    |                                                                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signature`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `server` is never read
[INFO] [stdout]   --> src/miner.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Context {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     server: ServerHandle,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `server` is never read
[INFO] [stdout]   --> src/network/worker.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Context {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     server: ServerHandle,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Context` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bitcoin` (bin "bitcoin") due to 6 previous errors; 16 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 5 previous errors; 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bitcoin` (bin "bitcoin" test) due to 6 previous errors; 17 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a01aa1f8bab9fd0c4631eff7968b7bd790870128ec9444b52f01930eda325472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a01aa1f8bab9fd0c4631eff7968b7bd790870128ec9444b52f01930eda325472", kill_on_drop: false }`
[INFO] [stdout] a01aa1f8bab9fd0c4631eff7968b7bd790870128ec9444b52f01930eda325472
