[INFO] cloning repository https://github.com/AndreyBakulev/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/AndreyBakulev/Blockchain-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreyBakulev%2FBlockchain-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreyBakulev%2FBlockchain-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3c92f329cf19e8927a860604e9d80a18ecfc57b
[INFO] checking AndreyBakulev/Blockchain-Rust against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreyBakulev%2FBlockchain-Rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AndreyBakulev/Blockchain-Rust
[INFO] finished tweaking git repo https://github.com/AndreyBakulev/Blockchain-Rust
[INFO] tweaked toml for git repo https://github.com/AndreyBakulev/Blockchain-Rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AndreyBakulev/Blockchain-Rust on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AndreyBakulev/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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a934cec5afbfae18deee8bab9a51591393db30703bc7f03a5087b24de4b749cf
[INFO] running `Command { std: "docker" "start" "-a" "a934cec5afbfae18deee8bab9a51591393db30703bc7f03a5087b24de4b749cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a934cec5afbfae18deee8bab9a51591393db30703bc7f03a5087b24de4b749cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a934cec5afbfae18deee8bab9a51591393db30703bc7f03a5087b24de4b749cf", kill_on_drop: false }`
[INFO] [stdout] a934cec5afbfae18deee8bab9a51591393db30703bc7f03a5087b24de4b749cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a24e7c6a64562f24f01f68b4b59092ed33ceff477f34018885bac459f872f518
[INFO] running `Command { std: "docker" "start" "-a" "a24e7c6a64562f24f01f68b4b59092ed33ceff477f34018885bac459f872f518", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking const-oid v0.10.0-pre.2
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.57
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking hybrid-array v0.2.0-rc.8
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking crypto-common v0.2.0-pre.5
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking block-buffer v0.11.0-pre.5
[INFO] [stderr]     Checking digest v0.11.0-pre.8
[INFO] [stderr]     Checking sha2 v0.11.0-pre.3
[INFO] [stderr]     Checking Blockchain-Rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/blockchain.rs:175:49
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn remove_block(&mut self, index: usize,mut file: File) {
[INFO] [stdout]     |                                                 ----^^^^
[INFO] [stdout]     |                                                 |
[INFO] [stdout]     |                                                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/main.rs:30:25
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 let mut file = File::create(name2.clone()).unwrap();
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 let mut file = File::create(name2.clone()).unwrap();
[INFO] [stdout]    |                     ----^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/blockchain.rs:25:26
[INFO] [stdout]    |
[INFO] [stdout] 25 |             Some(idx) if idx >= 0 && idx < self.chain.len() as u64 => {
[INFO] [stdout]    |                          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/blockchain.rs:28:37
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 let last_block = if idx >= 0 {
[INFO] [stdout]    |                                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/blockchain.rs:175:49
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn remove_block(&mut self, index: usize,mut file: File) {
[INFO] [stdout]     |                                                 ----^^^^
[INFO] [stdout]     |                                                 |
[INFO] [stdout]     |                                                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/main.rs:30:25
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 let mut file = File::create(name2.clone()).unwrap();
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 let mut file = File::create(name2.clone()).unwrap();
[INFO] [stdout]    |                     ----^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/blockchain.rs:25:26
[INFO] [stdout]    |
[INFO] [stdout] 25 |             Some(idx) if idx >= 0 && idx < self.chain.len() as u64 => {
[INFO] [stdout]    |                          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/blockchain.rs:28:37
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 let last_block = if idx >= 0 {
[INFO] [stdout]    |                                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.99s
[INFO] running `Command { std: "docker" "inspect" "a24e7c6a64562f24f01f68b4b59092ed33ceff477f34018885bac459f872f518", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a24e7c6a64562f24f01f68b4b59092ed33ceff477f34018885bac459f872f518", kill_on_drop: false }`
[INFO] [stdout] a24e7c6a64562f24f01f68b4b59092ed33ceff477f34018885bac459f872f518
