[INFO] cloning repository https://github.com/vinay1668/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/vinay1668/blockchain-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvinay1668%2Fblockchain-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvinay1668%2Fblockchain-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4cc65a88ac257e6419766aff53ea3735af35b6aa
[INFO] testing vinay1668/blockchain-rust against beta-2025-02-18 for beta-1.86-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvinay1668%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] validating manifest of git repo https://github.com/vinay1668/blockchain-rust on toolchain beta-2025-02-18
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-02-18" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vinay1668/blockchain-rust
[INFO] finished tweaking git repo https://github.com/vinay1668/blockchain-rust
[INFO] tweaked toml for git repo https://github.com/vinay1668/blockchain-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/vinay1668/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" "+beta-2025-02-18" "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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-02-18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c25f53a4556c71cee2d4be9020e09f202712b47634eb99f49a9cfd02a4fcbc7b
[INFO] running `Command { std: "docker" "start" "-a" "c25f53a4556c71cee2d4be9020e09f202712b47634eb99f49a9cfd02a4fcbc7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c25f53a4556c71cee2d4be9020e09f202712b47634eb99f49a9cfd02a4fcbc7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c25f53a4556c71cee2d4be9020e09f202712b47634eb99f49a9cfd02a4fcbc7b", kill_on_drop: false }`
[INFO] [stdout] c25f53a4556c71cee2d4be9020e09f202712b47634eb99f49a9cfd02a4fcbc7b
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-02-18" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b561767987681df505da7a3d79b8020081a4b5dda8b5b57f5621674b938178a
[INFO] running `Command { std: "docker" "start" "-a" "3b561767987681df505da7a3d79b8020081a4b5dda8b5b57f5621674b938178a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling serde_json v1.0.97
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling cpufeatures v0.2.8
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]    Compiling chrono v0.4.26
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha2 v0.10.7
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/models/block.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn new(index: u64, previous_hash:String) -> Self{
[INFO] [stdout]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `previous_hash`
[INFO] [stdout]   --> src/models/block.rs:26:28
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn new(index: u64, previous_hash:String) -> Self{
[INFO] [stdout]    |                            ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_previous_hash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/models/block.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut block = Block{
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/models/blockchain.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut genesis_block = Block {
[INFO] [stdout]    |             ----^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `genesis_block` is never read
[INFO] [stdout]   --> src/models/blockchain.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Blockchain{
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 11 |     pub genesis_block: Block,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Blockchain` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.69s
[INFO] running `Command { std: "docker" "inspect" "3b561767987681df505da7a3d79b8020081a4b5dda8b5b57f5621674b938178a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b561767987681df505da7a3d79b8020081a4b5dda8b5b57f5621674b938178a", kill_on_drop: false }`
[INFO] [stdout] 3b561767987681df505da7a3d79b8020081a4b5dda8b5b57f5621674b938178a
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-02-18" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f454d232c4cb459321f17bad478a5227a506b6388d61256cd1ea250e2f5e70d8
[INFO] running `Command { std: "docker" "start" "-a" "f454d232c4cb459321f17bad478a5227a506b6388d61256cd1ea250e2f5e70d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/models/block.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn new(index: u64, previous_hash:String) -> Self{
[INFO] [stdout]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `previous_hash`
[INFO] [stdout]   --> src/models/block.rs:26:28
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn new(index: u64, previous_hash:String) -> Self{
[INFO] [stdout]    |                            ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_previous_hash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/models/block.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut block = Block{
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/models/blockchain.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut genesis_block = Block {
[INFO] [stdout]    |             ----^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `genesis_block` is never read
[INFO] [stdout]   --> src/models/blockchain.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Blockchain{
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 11 |     pub genesis_block: Block,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Blockchain` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "f454d232c4cb459321f17bad478a5227a506b6388d61256cd1ea250e2f5e70d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f454d232c4cb459321f17bad478a5227a506b6388d61256cd1ea250e2f5e70d8", kill_on_drop: false }`
[INFO] [stdout] f454d232c4cb459321f17bad478a5227a506b6388d61256cd1ea250e2f5e70d8
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-02-18" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 27ee8ce74790a1a18443580fb6547d1ac657e51bdf4a53bdb38a94a21c90a2b8
[INFO] running `Command { std: "docker" "start" "-a" "27ee8ce74790a1a18443580fb6547d1ac657e51bdf4a53bdb38a94a21c90a2b8", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/models/block.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn new(index: u64, previous_hash:String) -> Self{
[INFO] [stderr]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `previous_hash`
[INFO] [stderr]   --> src/models/block.rs:26:28
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn new(index: u64, previous_hash:String) -> Self{
[INFO] [stderr]    |                            ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_previous_hash`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/models/block.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let mut block = Block{
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/models/blockchain.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let mut genesis_block = Block {
[INFO] [stderr]    |             ----^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field `genesis_block` is never read
[INFO] [stderr]   --> src/models/blockchain.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Blockchain{
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] 11 |     pub genesis_block: Block,
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Blockchain` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `blockchain` (bin "blockchain" test) generated 5 warnings (run `cargo fix --bin "blockchain" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/blockchain-15e4f41e9234670a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "27ee8ce74790a1a18443580fb6547d1ac657e51bdf4a53bdb38a94a21c90a2b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27ee8ce74790a1a18443580fb6547d1ac657e51bdf4a53bdb38a94a21c90a2b8", kill_on_drop: false }`
[INFO] [stdout] 27ee8ce74790a1a18443580fb6547d1ac657e51bdf4a53bdb38a94a21c90a2b8