[INFO] cloning repository https://github.com/zzyaoyao/blockchain_rust-
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zzyaoyao/blockchain_rust-" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzzyaoyao%2Fblockchain_rust-", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzzyaoyao%2Fblockchain_rust-'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1004900db11104291b43fb414f1dbcd006b48caf
[INFO] checking zzyaoyao/blockchain_rust- against 011c518242557d21690f7936b5812318dc2fec47 for pr-159877
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzzyaoyao%2Fblockchain_rust-" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zzyaoyao/blockchain_rust-
[INFO] finished tweaking git repo https://github.com/zzyaoyao/blockchain_rust-
[INFO] tweaked toml for git repo https://github.com/zzyaoyao/blockchain_rust- written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zzyaoyao/blockchain_rust- on toolchain 011c518242557d21690f7936b5812318dc2fec47
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zzyaoyao/blockchain_rust- 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" "+011c518242557d21690f7936b5812318dc2fec47" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple_logger v4.3.3
[INFO] [stderr]   Downloaded libc v0.2.173
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:1fa6594d87c8fa7b311925a7a77a16f539833322d9dfba4ce891f211db2f90b1" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] bb8654ca3841eaca0cb41bca11d409e3ea665a44ac3328278a3b11263a05cf32
[INFO] running `Command { std: "docker" "start" "bb8654ca3841eaca0cb41bca11d409e3ea665a44ac3328278a3b11263a05cf32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb8654ca3841eaca0cb41bca11d409e3ea665a44ac3328278a3b11263a05cf32", 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" "bb8654ca3841eaca0cb41bca11d409e3ea665a44ac3328278a3b11263a05cf32" "/opt/rustwide/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb8654ca3841eaca0cb41bca11d409e3ea665a44ac3328278a3b11263a05cf32", 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" "bb8654ca3841eaca0cb41bca11d409e3ea665a44ac3328278a3b11263a05cf32" "/opt/rustwide/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.173
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]     Checking anstyle-query v1.1.3
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]     Checking deranged v0.4.0
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling syn v2.0.103
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]     Checking colored v2.2.0
[INFO] [stderr]     Checking digest v0.10.7
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[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
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[INFO] [stderr]     Checking merkle-cbt v0.3.2
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[INFO] [stderr]     Checking clap_builder v4.5.40
[INFO] [stderr]     Checking getrandom v0.2.16
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[INFO] [stderr]     Checking time v0.3.41
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
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[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking simple_logger v4.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling clap_derive v4.5.40
[INFO] [stderr]     Checking clap v4.5.40
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking blockchain-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `get_block_hashes` is never used
[INFO] [stdout]    --> src/blockchain.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout]  29 | impl Blockchain {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn get_block_hashes(&self) -> Result<Vec<String>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `UTXO_BUCKET` is never used
[INFO] [stdout]  --> src/utxoset.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const UTXO_BUCKET: &str = "utxoset";
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sign` is never used
[INFO] [stdout]   --> src/wallets.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Wallet {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn sign(&self, message: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/blockchain.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn iter(&self) -> BlockchainIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn iter(&self) -> BlockchainIter<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_block_hashes` is never used
[INFO] [stdout]    --> src/blockchain.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout]  29 | impl Blockchain {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn get_block_hashes(&self) -> Result<Vec<String>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `UTXO_BUCKET` is never used
[INFO] [stdout]  --> src/utxoset.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const UTXO_BUCKET: &str = "utxoset";
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sign` is never used
[INFO] [stdout]   --> src/wallets.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Wallet {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn sign(&self, message: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/blockchain.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn iter(&self) -> BlockchainIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn iter(&self) -> BlockchainIter<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.38s
[INFO] running `Command { std: "docker" "inspect" "bb8654ca3841eaca0cb41bca11d409e3ea665a44ac3328278a3b11263a05cf32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb8654ca3841eaca0cb41bca11d409e3ea665a44ac3328278a3b11263a05cf32", kill_on_drop: false }`
[INFO] [stdout] bb8654ca3841eaca0cb41bca11d409e3ea665a44ac3328278a3b11263a05cf32
