[INFO] cloning repository https://github.com/chen4903/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/chen4903/blockchain-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchen4903%2Fblockchain-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchen4903%2Fblockchain-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0d97bb1eb382896b8d363c63ab6956716f3b3ec
[INFO] checking chen4903/blockchain-rust against e5e97e3ef0ee95d34bea49cdac051ed1bbac01df for pr-158759-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchen4903%2Fblockchain-rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chen4903/blockchain-rust
[INFO] finished tweaking git repo https://github.com/chen4903/blockchain-rust
[INFO] tweaked toml for git repo https://github.com/chen4903/blockchain-rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chen4903/blockchain-rust on toolchain e5e97e3ef0ee95d34bea49cdac051ed1bbac01df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e5e97e3ef0ee95d34bea49cdac051ed1bbac01df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chen4903/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" "+e5e97e3ef0ee95d34bea49cdac051ed1bbac01df" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 92490876951a0be2c6d5e97f5ce4e0c8fa1a5ad81a426b5cd9b5d3be1e946953
[INFO] running `Command { std: "docker" "start" "92490876951a0be2c6d5e97f5ce4e0c8fa1a5ad81a426b5cd9b5d3be1e946953", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92490876951a0be2c6d5e97f5ce4e0c8fa1a5ad81a426b5cd9b5d3be1e946953", 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" "92490876951a0be2c6d5e97f5ce4e0c8fa1a5ad81a426b5cd9b5d3be1e946953" "/opt/rustwide/cargo-home/bin/cargo" "+e5e97e3ef0ee95d34bea49cdac051ed1bbac01df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92490876951a0be2c6d5e97f5ce4e0c8fa1a5ad81a426b5cd9b5d3be1e946953", 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" "92490876951a0be2c6d5e97f5ce4e0c8fa1a5ad81a426b5cd9b5d3be1e946953" "/opt/rustwide/cargo-home/bin/cargo" "+e5e97e3ef0ee95d34bea49cdac051ed1bbac01df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking data-encoding v2.5.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking blockchain_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::time`
[INFO] [stdout]  --> src/block.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::time;
[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: `thread::current`
[INFO] [stdout]  --> src/block.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{thread::current, time::{SystemTime, UNIX_EPOCH}};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::time`
[INFO] [stdout]  --> src/block.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::time;
[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: `thread::current`
[INFO] [stdout]  --> src/block.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{thread::current, time::{SystemTime, UNIX_EPOCH}};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Block` is never constructed
[INFO] [stdout]  --> src/block.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Block {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_block`, `new_genesis_block`, `get_pre_block_hash`, `get_data`, `get_hash`, and `get_timestamp` are never used
[INFO] [stdout]   --> src/block.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Block {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     pub fn new_block(pre_block_hash: String, data: String) -> Block{
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn new_genesis_block() -> Block {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn get_pre_block_hash(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn get_data(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn get_hash(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn get_timestamp(&self) -> i64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `current_timestamp` is never used
[INFO] [stdout]   --> src/block.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn current_timestamp() -> i64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `caculate_hash` is never used
[INFO] [stdout]   --> src/block.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn caculate_hash(timestamp: i64, pre_block_hash: String, data: String) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sha256_digest` is never used
[INFO] [stdout]   --> src/block.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn sha256_digest(block_data: String) -> String { // SHA2-256
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlockChain` is never constructed
[INFO] [stdout]  --> src/blockchain.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct BlockChain {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_block_chain` and `add_block` are never used
[INFO] [stdout]   --> src/blockchain.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl BlockChain {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout]  9 |     pub fn new_block_chain() -> BlockChain {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn add_block(&mut self, data: String) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::time`
[INFO] [stdout]  --> src/block.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::time;
[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: `thread::current`
[INFO] [stdout]  --> src/block.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{thread::current, time::{SystemTime, UNIX_EPOCH}};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::time`
[INFO] [stdout]  --> src/block.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::time;
[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: `thread::current`
[INFO] [stdout]  --> src/block.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{thread::current, time::{SystemTime, UNIX_EPOCH}};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.12s
[INFO] running `Command { std: "docker" "inspect" "92490876951a0be2c6d5e97f5ce4e0c8fa1a5ad81a426b5cd9b5d3be1e946953", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92490876951a0be2c6d5e97f5ce4e0c8fa1a5ad81a426b5cd9b5d3be1e946953", kill_on_drop: false }`
[INFO] [stdout] 92490876951a0be2c6d5e97f5ce4e0c8fa1a5ad81a426b5cd9b5d3be1e946953
