[INFO] cloning repository https://github.com/shubhampawar3223/rustBlockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shubhampawar3223/rustBlockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshubhampawar3223%2FrustBlockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshubhampawar3223%2FrustBlockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c4997239b65b418fbaa7cfb4fd99e78af7805ed
[INFO] checking shubhampawar3223/rustBlockchain against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshubhampawar3223%2FrustBlockchain" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shubhampawar3223/rustBlockchain
[INFO] finished tweaking git repo https://github.com/shubhampawar3223/rustBlockchain
[INFO] tweaked toml for git repo https://github.com/shubhampawar3223/rustBlockchain written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shubhampawar3223/rustBlockchain on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shubhampawar3223/rustBlockchain 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.164
[INFO] [stderr]   Downloaded cpufeatures v0.2.8
[INFO] [stderr]   Downloaded serde v1.0.164
[INFO] [stderr]   Downloaded serde_json v1.0.97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcc82e6eb738f2ec85c0cef4597e16db729473c7605b7b56eec13fb146a0c1fe
[INFO] running `Command { std: "docker" "start" "-a" "dcc82e6eb738f2ec85c0cef4597e16db729473c7605b7b56eec13fb146a0c1fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcc82e6eb738f2ec85c0cef4597e16db729473c7605b7b56eec13fb146a0c1fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcc82e6eb738f2ec85c0cef4597e16db729473c7605b7b56eec13fb146a0c1fe", kill_on_drop: false }`
[INFO] [stdout] dcc82e6eb738f2ec85c0cef4597e16db729473c7605b7b56eec13fb146a0c1fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0cd3aad68fc60b213e28b39df90a582c975ad3abe5e1f10458b209539cdea67
[INFO] running `Command { std: "docker" "start" "-a" "c0cd3aad68fc60b213e28b39df90a582c975ad3abe5e1f10458b209539cdea67", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling serde_json v1.0.97
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking cpufeatures v0.2.8
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking chrono v0.4.26
[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 sha2 v0.10.7
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]     Checking blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `previous_hash`
[INFO] [stdout]   --> src/models/block.rs:26:27
[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]    = note: `#[warn(unused_variables)]` on by default
[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:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let mut genesisBlock = Block{
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `genesisBlock` is never read
[INFO] [stdout]  --> src/models/blockchain.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Blockchain{
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 8 |     pub genesisBlock: 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] [stdout] warning: variable `serializedBlockData` should have a snake case name
[INFO] [stdout]   --> src/models/block.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let serializedBlockData = serde_json::to_string(&block_data).unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `serialized_block_data`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `genesisBlock` should have a snake case name
[INFO] [stdout]  --> src/models/blockchain.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub genesisBlock: Block,
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `genesis_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `genesisBlock` should have a snake case name
[INFO] [stdout]   --> src/models/blockchain.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let mut genesisBlock = Block{
[INFO] [stdout]    |                 ^^^^^^^^^^^^ help: convert the identifier to snake case: `genesis_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `addBlock` should have a snake case name
[INFO] [stdout]   --> src/models/blockchain.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn addBlock(&mut self){
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case: `add_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newBlock` should have a snake case name
[INFO] [stdout]   --> src/models/blockchain.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut newBlock = Block::new(
[INFO] [stdout]    |                 ^^^^^^^^ help: convert the identifier to snake case: `new_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `previous_hash`
[INFO] [stdout]   --> src/models/block.rs:26:27
[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]    = note: `#[warn(unused_variables)]` on by default
[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:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let mut genesisBlock = Block{
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `genesisBlock` is never read
[INFO] [stdout]  --> src/models/blockchain.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Blockchain{
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 8 |     pub genesisBlock: 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] [stdout] warning: variable `serializedBlockData` should have a snake case name
[INFO] [stdout]   --> src/models/block.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let serializedBlockData = serde_json::to_string(&block_data).unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `serialized_block_data`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `genesisBlock` should have a snake case name
[INFO] [stdout]  --> src/models/blockchain.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub genesisBlock: Block,
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `genesis_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `genesisBlock` should have a snake case name
[INFO] [stdout]   --> src/models/blockchain.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let mut genesisBlock = Block{
[INFO] [stdout]    |                 ^^^^^^^^^^^^ help: convert the identifier to snake case: `genesis_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `addBlock` should have a snake case name
[INFO] [stdout]   --> src/models/blockchain.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn addBlock(&mut self){
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case: `add_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newBlock` should have a snake case name
[INFO] [stdout]   --> src/models/blockchain.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut newBlock = Block::new(
[INFO] [stdout]    |                 ^^^^^^^^ help: convert the identifier to snake case: `new_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.39s
[INFO] running `Command { std: "docker" "inspect" "c0cd3aad68fc60b213e28b39df90a582c975ad3abe5e1f10458b209539cdea67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0cd3aad68fc60b213e28b39df90a582c975ad3abe5e1f10458b209539cdea67", kill_on_drop: false }`
[INFO] [stdout] c0cd3aad68fc60b213e28b39df90a582c975ad3abe5e1f10458b209539cdea67