[INFO] cloning repository https://github.com/007tickooayush/rust-blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/007tickooayush/rust-blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F007tickooayush%2Frust-blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F007tickooayush%2Frust-blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1aff917c499e35314b3d41b463c24ed516d6a62
[INFO] checking 007tickooayush/rust-blockchain against e3607d549209cc9fdfe7e907123b4185210e2c2b for pr-158915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F007tickooayush%2Frust-blockchain" "/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/007tickooayush/rust-blockchain
[INFO] finished tweaking git repo https://github.com/007tickooayush/rust-blockchain
[INFO] tweaked toml for git repo https://github.com/007tickooayush/rust-blockchain written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/007tickooayush/rust-blockchain on toolchain e3607d549209cc9fdfe7e907123b4185210e2c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/007tickooayush/rust-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" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6deb9ef870df58789cb0e280acacb30b6ae227c4a9171f3b1b7f306c717c4051
[INFO] running `Command { std: "docker" "start" "6deb9ef870df58789cb0e280acacb30b6ae227c4a9171f3b1b7f306c717c4051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6deb9ef870df58789cb0e280acacb30b6ae227c4a9171f3b1b7f306c717c4051", 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" "6deb9ef870df58789cb0e280acacb30b6ae227c4a9171f3b1b7f306c717c4051" "/opt/rustwide/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6deb9ef870df58789cb0e280acacb30b6ae227c4a9171f3b1b7f306c717c4051", 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" "6deb9ef870df58789cb0e280acacb30b6ae227c4a9171f3b1b7f306c717c4051" "/opt/rustwide/cargo-home/bin/cargo" "+e3607d549209cc9fdfe7e907123b4185210e2c2b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking anstyle v1.0.6
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking strsim v0.11.0
[INFO] [stderr]     Checking anstream v0.6.13
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking bitcoin_hashes v0.7.6
[INFO] [stderr]     Checking merkle-cbt v0.3.2
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking parking_lot_core v0.8.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking sled v0.34.7
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking clap v4.5.2
[INFO] [stderr]     Checking bitcoincash-addr v0.5.2
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking env_filter v0.1.0
[INFO] [stderr]     Checking env_logger v0.11.3
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking blockchain-mark1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]  --> src/block.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type Result<T> = std::result::Result<T,failure::Error>;
[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 `TARGET_HEX` is never used
[INFO] [stdout]   --> src/block.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const TARGET_HEX: usize = 4;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Block` is never constructed
[INFO] [stdout]   --> src/block.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Block {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Blockchain` is never constructed
[INFO] [stdout]   --> src/block.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Blockchain {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_genesis_block`, `get_hash`, `new`, `run_proof_of_work`, `validate`, and `prepare_hash_data` are never used
[INFO] [stdout]   --> src/block.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Block {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 27 |
[INFO] [stdout] 28 |     pub fn new_genesis_block() -> Block {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn get_hash(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn new(data: String, prev_block_hash: String, height: usize) -> Result<Block> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     pub fn run_proof_of_work(&mut self) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |     fn validate(&self) -> Result<bool> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |     fn prepare_hash_data(&self) -> Result<Vec<u8>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add_block` are never used
[INFO] [stdout]    --> src/block.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 112 | impl Blockchain {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 113 |     pub fn new() -> Blockchain {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     pub fn add_block(&mut self, data: String) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]   --> src/block.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Block {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     height: usize,
[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]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `bitcoincash-addr`
[INFO] [stderr]  --> Cargo.toml:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | bitcoincash-addr = "0.5.2"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `bitcoincash-addr`
[INFO] [stderr] warning: unused dependency `clap`
[INFO] [stderr]  --> Cargo.toml:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | clap = "4.0.29"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider removing the dependency on `clap`
[INFO] [stderr] warning: unused dependency `rust-crypto`
[INFO] [stderr]   --> Cargo.toml:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | rust-crypto = "^0.2"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `rust-crypto`
[INFO] [stderr] warning: unused dependency `env_logger`
[INFO] [stderr]  --> Cargo.toml:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | env_logger = "0.11.3"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider removing the dependency on `env_logger`
[INFO] [stderr] warning: unused dependency `merkle-cbt`
[INFO] [stderr]  --> Cargo.toml:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | merkle-cbt = "0.3.2"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider removing the dependency on `merkle-cbt`
[INFO] [stderr] warning: unused dependency `rand`
[INFO] [stderr]   --> Cargo.toml:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | rand = "0.8.5"
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `rand`
[INFO] [stderr] warning: unused dependency `serde_json`
[INFO] [stderr]   --> Cargo.toml:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | serde_json = "1.0"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `serde_json`
[INFO] [stderr] warning: unused dependency `sled`
[INFO] [stderr]   --> Cargo.toml:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | sled = "0.34"
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `sled`
[INFO] [stderr] warning: `blockchain-mark1` (manifest) generated 8 warnings
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.43s
[INFO] running `Command { std: "docker" "inspect" "6deb9ef870df58789cb0e280acacb30b6ae227c4a9171f3b1b7f306c717c4051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6deb9ef870df58789cb0e280acacb30b6ae227c4a9171f3b1b7f306c717c4051", kill_on_drop: false }`
[INFO] [stdout] 6deb9ef870df58789cb0e280acacb30b6ae227c4a9171f3b1b7f306c717c4051