[INFO] cloning repository https://github.com/vectorix-cross/blockchain-from-scratch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vectorix-cross/blockchain-from-scratch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvectorix-cross%2Fblockchain-from-scratch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvectorix-cross%2Fblockchain-from-scratch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5febe9ebd9eb8a74f3c4cd67c2384e2fa9a58605
[INFO] testing vectorix-cross/blockchain-from-scratch against 1.100.0-beta.1 for beta-1.100-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvectorix-cross%2Fblockchain-from-scratch" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vectorix-cross/blockchain-from-scratch
[INFO] finished tweaking git repo https://github.com/vectorix-cross/blockchain-from-scratch
[INFO] tweaked toml for git repo https://github.com/vectorix-cross/blockchain-from-scratch written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vectorix-cross/blockchain-from-scratch on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vectorix-cross/blockchain-from-scratch 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 79ff19cf7683ce418e379260d3aa64bc3b64955aed0703aa9db4c16c37584952
[INFO] running `Command { std: "docker" "start" "79ff19cf7683ce418e379260d3aa64bc3b64955aed0703aa9db4c16c37584952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79ff19cf7683ce418e379260d3aa64bc3b64955aed0703aa9db4c16c37584952", 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" "79ff19cf7683ce418e379260d3aa64bc3b64955aed0703aa9db4c16c37584952" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79ff19cf7683ce418e379260d3aa64bc3b64955aed0703aa9db4c16c37584952", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "79ff19cf7683ce418e379260d3aa64bc3b64955aed0703aa9db4c16c37584952" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling diy-blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Block` and `Header`
[INFO] [stdout]  --> src/c2_blockchain/mod.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use p6_rich_state::{Block, Header};
[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: `crate::hash`
[INFO] [stdout]  --> src/c2_blockchain/p1_header_chain.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::hash;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hash`
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::hash;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hash`
[INFO] [stdout]  --> src/c2_blockchain/p3_consensus.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::hash;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hash`
[INFO] [stdout]  --> src/c2_blockchain/p4_batched_extrinsics.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::hash;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::p3_consensus::THRESHOLD`
[INFO] [stdout]  --> src/c2_blockchain/p4_batched_extrinsics.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::p3_consensus::THRESHOLD;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hash`
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::hash;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::p3_consensus::THRESHOLD`
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use super::p3_consensus::THRESHOLD;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hash`
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::hash;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::p3_consensus::THRESHOLD`
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use super::p3_consensus::THRESHOLD;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/c3_consensus/p4_even_only.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: Consensus` is not satisfied
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:50:6
[INFO] [stdout]    |
[INFO] [stdout] 50 | ) -> impl Consensus {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^ the trait `Consensus` is not implemented for `!`
[INFO] [stdout] 51 |     todo!("Exercise 3")
[INFO] [stdout]    |     ------------------- return type was inferred to be `!` here
[INFO] [stdout]    |
[INFO] [stdout] help: the following other types implement trait `Consensus`
[INFO] [stdout]   --> src/c3_consensus/mod.rs:92:1
[INFO] [stdout]    |
[INFO] [stdout] 92 |   impl Consensus for () {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^ `()`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/c3_consensus/p6_forking.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | / impl<D, B, A> Consensus for Forked<D, B, A>
[INFO] [stdout] 22 | | where
[INFO] [stdout] 23 | |     D: Clone + core::fmt::Debug + Eq + PartialEq + std::hash::Hash,
[INFO] [stdout] 24 | |     B: Consensus,
[INFO] [stdout] 25 | |     A: Consensus,
[INFO] [stdout] 26 | |     B::Digest: Into<D>,
[INFO] [stdout] 27 | |     A::Digest: Into<D>,
[INFO] [stdout]    | |_______________________^ `Forked<D, B, A>`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/c3_consensus/p1_pow.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 |   impl Consensus for Pow {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^ `Pow`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/c3_consensus/p3_poa.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 |   impl Consensus for SimplePoa {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `SimplePoa`
[INFO] [stdout]    = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]    = help: you might have intended to use the type `()` here instead
[INFO] [stdout] help: `!` can be coerced to any type; consider casting it to a concrete type that implements the trait
[INFO] [stdout]    |
[INFO] [stdout] 51 |     todo!("Exercise 3") as /* Type */
[INFO] [stdout]    |                         +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: Consensus` is not satisfied
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:59:6
[INFO] [stdout]    |
[INFO] [stdout] 59 | ) -> impl Consensus {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^ the trait `Consensus` is not implemented for `!`
[INFO] [stdout] 60 |     todo!("Exercise 4")
[INFO] [stdout]    |     ------------------- return type was inferred to be `!` here
[INFO] [stdout]    |
[INFO] [stdout] help: the following other types implement trait `Consensus`
[INFO] [stdout]   --> src/c3_consensus/mod.rs:92:1
[INFO] [stdout]    |
[INFO] [stdout] 92 |   impl Consensus for () {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^ `()`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/c3_consensus/p6_forking.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | / impl<D, B, A> Consensus for Forked<D, B, A>
[INFO] [stdout] 22 | | where
[INFO] [stdout] 23 | |     D: Clone + core::fmt::Debug + Eq + PartialEq + std::hash::Hash,
[INFO] [stdout] 24 | |     B: Consensus,
[INFO] [stdout] 25 | |     A: Consensus,
[INFO] [stdout] 26 | |     B::Digest: Into<D>,
[INFO] [stdout] 27 | |     A::Digest: Into<D>,
[INFO] [stdout]    | |_______________________^ `Forked<D, B, A>`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/c3_consensus/p1_pow.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 |   impl Consensus for Pow {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^ `Pow`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/c3_consensus/p3_poa.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 |   impl Consensus for SimplePoa {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `SimplePoa`
[INFO] [stdout]    = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]    = help: you might have intended to use the type `()` here instead
[INFO] [stdout] help: `!` can be coerced to any type; consider casting it to a concrete type that implements the trait
[INFO] [stdout]    |
[INFO] [stdout] 60 |     todo!("Exercise 4") as /* Type */
[INFO] [stdout]    |                         +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: Consensus` is not satisfied
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:70:70
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn even_after_given_height<Original: Consensus>(fork_height: u64) -> impl Consensus {
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^^ the trait `Consensus` is not implemented for `!`
[INFO] [stdout] 71 |     todo!("Exercise 5")
[INFO] [stdout]    |     ------------------- return type was inferred to be `!` here
[INFO] [stdout]    |
[INFO] [stdout] help: the following other types implement trait `Consensus`
[INFO] [stdout]   --> src/c3_consensus/mod.rs:92:1
[INFO] [stdout]    |
[INFO] [stdout] 92 |   impl Consensus for () {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^ `()`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/c3_consensus/p6_forking.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | / impl<D, B, A> Consensus for Forked<D, B, A>
[INFO] [stdout] 22 | | where
[INFO] [stdout] 23 | |     D: Clone + core::fmt::Debug + Eq + PartialEq + std::hash::Hash,
[INFO] [stdout] 24 | |     B: Consensus,
[INFO] [stdout] 25 | |     A: Consensus,
[INFO] [stdout] 26 | |     B::Digest: Into<D>,
[INFO] [stdout] 27 | |     A::Digest: Into<D>,
[INFO] [stdout]    | |_______________________^ `Forked<D, B, A>`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/c3_consensus/p1_pow.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 |   impl Consensus for Pow {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^ `Pow`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/c3_consensus/p3_poa.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 |   impl Consensus for SimplePoa {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `SimplePoa`
[INFO] [stdout]    = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]    = help: you might have intended to use the type `()` here instead
[INFO] [stdout] help: `!` can be coerced to any type; consider casting it to a concrete type that implements the trait
[INFO] [stdout]    |
[INFO] [stdout] 71 |     todo!("Exercise 5") as /* Type */
[INFO] [stdout]    |                         +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: Consensus` is not satisfied
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:84:6
[INFO] [stdout]    |
[INFO] [stdout] 84 | ) -> impl Consensus {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^ the trait `Consensus` is not implemented for `!`
[INFO] [stdout] 85 |     todo!("Exercise 6")
[INFO] [stdout]    |     ------------------- return type was inferred to be `!` here
[INFO] [stdout]    |
[INFO] [stdout] help: the following other types implement trait `Consensus`
[INFO] [stdout]   --> src/c3_consensus/mod.rs:92:1
[INFO] [stdout]    |
[INFO] [stdout] 92 |   impl Consensus for () {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^ `()`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/c3_consensus/p6_forking.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | / impl<D, B, A> Consensus for Forked<D, B, A>
[INFO] [stdout] 22 | | where
[INFO] [stdout] 23 | |     D: Clone + core::fmt::Debug + Eq + PartialEq + std::hash::Hash,
[INFO] [stdout] 24 | |     B: Consensus,
[INFO] [stdout] 25 | |     A: Consensus,
[INFO] [stdout] 26 | |     B::Digest: Into<D>,
[INFO] [stdout] 27 | |     A::Digest: Into<D>,
[INFO] [stdout]    | |_______________________^ `Forked<D, B, A>`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/c3_consensus/p1_pow.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 |   impl Consensus for Pow {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^ `Pow`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/c3_consensus/p3_poa.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 |   impl Consensus for SimplePoa {
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `SimplePoa`
[INFO] [stdout]    = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]    = help: you might have intended to use the type `()` here instead
[INFO] [stdout] help: `!` can be coerced to any type; consider casting it to a concrete type that implements the trait
[INFO] [stdout]    |
[INFO] [stdout] 85 |     todo!("Exercise 6") as /* Type */
[INFO] [stdout]    |                         +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl u64>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:16:33
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub const THRESHOLD: u64 = u64::max_value() / 100;
[INFO] [stdout]    |                                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `starting_state`
[INFO] [stdout]   --> src/c1_state_machine/p1_switches.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn next_state(starting_state: &bool, t: &()) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_starting_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/c1_state_machine/p1_switches.rs:17:42
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn next_state(starting_state: &bool, t: &()) -> bool {
[INFO] [stdout]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `starting_state`
[INFO] [stdout]   --> src/c1_state_machine/p1_switches.rs:44:19
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn next_state(starting_state: &TwoSwitches, t: &Toggle) -> TwoSwitches {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_starting_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/c1_state_machine/p1_switches.rs:44:49
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn next_state(starting_state: &TwoSwitches, t: &Toggle) -> TwoSwitches {
[INFO] [stdout]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `starting_state`
[INFO] [stdout]   --> src/c1_state_machine/p2_laundry_machine.rs:42:19
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn next_state(starting_state: &ClothesState, t: &ClothesAction) -> ClothesState {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_starting_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/c1_state_machine/p2_laundry_machine.rs:42:50
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn next_state(starting_state: &ClothesState, t: &ClothesAction) -> ClothesState {
[INFO] [stdout]    |                                                  ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `starting_state`
[INFO] [stdout]   --> src/c1_state_machine/p3_atm.rs:60:19
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn next_state(starting_state: &Self::State, t: &Self::Transition) -> Self::State {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_starting_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/c1_state_machine/p3_atm.rs:60:49
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn next_state(starting_state: &Self::State, t: &Self::Transition) -> Self::State {
[INFO] [stdout]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `starting_state`
[INFO] [stdout]   --> src/c1_state_machine/p4_accounted_currency.rs:47:19
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn next_state(starting_state: &Balances, t: &AccountingTransaction) -> Balances {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_starting_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/c1_state_machine/p4_accounted_currency.rs:47:46
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn next_state(starting_state: &Balances, t: &AccountingTransaction) -> Balances {
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `starting_state`
[INFO] [stdout]   --> src/c1_state_machine/p5_digital_cash.rs:96:19
[INFO] [stdout]    |
[INFO] [stdout] 96 |     fn next_state(starting_state: &Self::State, t: &Self::Transition) -> Self::State {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_starting_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/c1_state_machine/p5_digital_cash.rs:96:49
[INFO] [stdout]    |
[INFO] [stdout] 96 |     fn next_state(starting_state: &Self::State, t: &Self::Transition) -> Self::State {
[INFO] [stdout]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain`
[INFO] [stdout]   --> src/c2_blockchain/p1_header_chain.rs:40:32
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extrinsic`
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn child(&self, extrinsic: u64) -> Self {
[INFO] [stdout]    |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extrinsic`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain`
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:50:32
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:58:22
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn build_valid_chain(n: u64) -> Vec<Header> {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extrinsic`
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn child(&self, extrinsic: u64) -> Self {
[INFO] [stdout]    |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extrinsic`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain`
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:52:32
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain`
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:64:37
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn verify_sub_chain_even(&self, chain: &[Header]) -> bool {
[INFO] [stdout]    |                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain`
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:70:36
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn verify_sub_chain_odd(&self, chain: &[Header]) -> bool {
[INFO] [stdout]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extrinsics_root`
[INFO] [stdout]   --> src/c2_blockchain/p4_batched_extrinsics.rs:42:25
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn child(&self, extrinsics_root: Hash, state: u64) -> Self {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extrinsics_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> src/c2_blockchain/p4_batched_extrinsics.rs:42:48
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn child(&self, extrinsics_root: Hash, state: u64) -> Self {
[INFO] [stdout]    |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]   --> src/c2_blockchain/p4_batched_extrinsics.rs:53:28
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn verify_child(&self, child: &Header) -> bool {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain`
[INFO] [stdout]   --> src/c2_blockchain/p4_batched_extrinsics.rs:64:32
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extrinsics`
[INFO] [stdout]   --> src/c2_blockchain/p4_batched_extrinsics.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn child(&self, extrinsics: Vec<u64>) -> Self {
[INFO] [stdout]    |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extrinsics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain`
[INFO] [stdout]   --> src/c2_blockchain/p4_batched_extrinsics.rs:96:36
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn verify_sub_chain(&self, chain: &[Block]) -> bool {
[INFO] [stdout]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]    --> src/c2_blockchain/p4_batched_extrinsics.rs:109:48
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn build_invalid_child_block_with_valid_header(parent: &Header) -> Block {
[INFO] [stdout]     |                                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `candidate_chains`
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn best_chain<'a>(candidate_chains: &[&'a [Header]]) -> &'a [Header] {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_candidate_chains`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain_1`
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:43:30
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn first_chain_is_better(chain_1: &[Header], chain_2: &[Header]) -> bool {
[INFO] [stdout]    |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_chain_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain_2`
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:43:50
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn first_chain_is_better(chain_1: &[Header], chain_2: &[Header]) -> bool {
[INFO] [stdout]    |                                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_chain_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `candidate_chains`
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:47:23
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn best_chain<'a>(candidate_chains: &[&'a [Header]]) -> &'a [Header] {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_candidate_chains`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:69:20
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn mine_extra_hard(block: &mut Block, threshold: u64) {
[INFO] [stdout]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `threshold`
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:69:39
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn mine_extra_hard(block: &mut Block, threshold: u64) {
[INFO] [stdout]    |                                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain_1`
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:74:30
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn first_chain_is_better(chain_1: &[Header], chain_2: &[Header]) -> bool {
[INFO] [stdout]    |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_chain_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain_2`
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:74:50
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn first_chain_is_better(chain_1: &[Header], chain_2: &[Header]) -> bool {
[INFO] [stdout]    |                                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_chain_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `candidate_chains`
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:78:23
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn best_chain<'a>(candidate_chains: &[&'a [Header]]) -> &'a [Header] {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_candidate_chains`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain_1`
[INFO] [stdout]    --> src/c2_blockchain/p5_fork_choice.rs:100:30
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn first_chain_is_better(chain_1: &[Header], chain_2: &[Header]) -> bool {
[INFO] [stdout]     |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_chain_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain_2`
[INFO] [stdout]    --> src/c2_blockchain/p5_fork_choice.rs:100:50
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn first_chain_is_better(chain_1: &[Header], chain_2: &[Header]) -> bool {
[INFO] [stdout]     |                                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_chain_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `candidate_chains`
[INFO] [stdout]    --> src/c2_blockchain/p5_fork_choice.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn best_chain<'a>(candidate_chains: &[&'a [Header]]) -> &'a [Header] {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_candidate_chains`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `genesis_state_root`
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn genesis(genesis_state_root: Hash) -> Self {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_genesis_state_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extrinsics_root`
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:57:21
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn child(&self, extrinsics_root: Hash, state_root: Hash) -> Self {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extrinsics_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state_root`
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:57:44
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn child(&self, extrinsics_root: Hash, state_root: Hash) -> Self {
[INFO] [stdout]    |                                            ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_state_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:62:28
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn verify_child(&self, child: &Header) -> bool {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain`
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:67:32
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `genesis_state`
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:91:20
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn genesis(genesis_state: &State) -> Self {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_genesis_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pre_state`
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:96:25
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn child(&self, pre_state: &State, extrinsics: Vec<u64>) -> Self {
[INFO] [stdout]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extrinsics`
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:96:44
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn child(&self, pre_state: &State, extrinsics: Vec<u64>) -> Self {
[INFO] [stdout]    |                                            ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extrinsics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pre_state`
[INFO] [stdout]    --> src/c2_blockchain/p6_rich_state.rs:105:36
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn verify_sub_chain(&self, pre_state: &State, chain: &[Block]) -> bool {
[INFO] [stdout]     |                                    ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain`
[INFO] [stdout]    --> src/c2_blockchain/p6_rich_state.rs:105:55
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn verify_sub_chain(&self, pre_state: &State, chain: &[Block]) -> bool {
[INFO] [stdout]     |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]    --> src/c2_blockchain/p6_rich_state.rs:121:48
[INFO] [stdout]     |
[INFO] [stdout] 121 | fn build_invalid_child_block_with_valid_header(parent: &Header, pre_state: &State) -> Block {
[INFO] [stdout]     |                                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pre_state`
[INFO] [stdout]    --> src/c2_blockchain/p6_rich_state.rs:121:65
[INFO] [stdout]     |
[INFO] [stdout] 121 | fn build_invalid_child_block_with_valid_header(parent: &Header, pre_state: &State) -> Block {
[INFO] [stdout]     |                                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:21:42
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn validate(&self, _: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `partial_header`
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn seal(&self, _: &Self::Digest, partial_header: Header<()>) -> Option<Header<Self::Digest>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c3_consensus/p2_dictator.rs:23:42
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn validate(&self, _: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `partial_header`
[INFO] [stdout]   --> src/c3_consensus/p2_dictator.rs:28:38
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn seal(&self, _: &Self::Digest, partial_header: Header<()>) -> Option<Header<Self::Digest>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:22:54
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         parent_digest: &Self::Digest,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `partial_header`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         partial_header: Header<()>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:45:24
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:45:54
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         parent_digest: &Self::Digest,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `partial_header`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         partial_header: Header<()>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:82:24
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:82:54
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         parent_digest: &Self::Digest,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `partial_header`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         partial_header: Header<()>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p4_even_only.rs:19:24
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c3_consensus/p4_even_only.rs:19:54
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p4_even_only.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         parent_digest: &Self::Digest,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `partial_header`
[INFO] [stdout]   --> src/c3_consensus/p4_even_only.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         partial_header: Header<()>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p5_interleave.rs:52:24
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c3_consensus/p5_interleave.rs:52:54
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p5_interleave.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         parent_digest: &Self::Digest,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `partial_header`
[INFO] [stdout]   --> src/c3_consensus/p5_interleave.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         partial_header: Header<()>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:31:24
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:31:54
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stdout]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         parent_digest: &Self::Digest,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `partial_header`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         partial_header: Header<()>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/mod.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         parent_digest: &Self::Digest,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain`
[INFO] [stdout]   --> src/c3_consensus/mod.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         chain: &[Header<Self::Digest>],
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `partial_header`
[INFO] [stdout]    --> src/c3_consensus/mod.rs:101:38
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn seal(&self, _: &Self::Digest, partial_header: Header<()>) -> Option<Header<Self::Digest>> {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `genesis_state_root`
[INFO] [stdout]   --> src/c4_client/p1_data_structure.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn genesis(genesis_state_root: Hash) -> Self {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_genesis_state_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state_root`
[INFO] [stdout]   --> src/c4_client/p1_data_structure.rs:31:21
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn child(&self, state_root: Hash, extrinsics_root: Hash) -> Self {
[INFO] [stdout]    |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_state_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extrinsics_root`
[INFO] [stdout]   --> src/c4_client/p1_data_structure.rs:31:39
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn child(&self, state_root: Hash, extrinsics_root: Hash) -> Self {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extrinsics_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]   --> src/c4_client/p1_data_structure.rs:36:28
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn verify_child(&self, child: &Self) -> bool {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain`
[INFO] [stdout]   --> src/c4_client/p1_data_structure.rs:41:32
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn verify_sub_chain(&self, chain: &[Self]) -> bool {
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `genesis_state`
[INFO] [stdout]   --> src/c4_client/p1_data_structure.rs:53:20
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn genesis(genesis_state: &SM::State) -> Self {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_genesis_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pre_state`
[INFO] [stdout]   --> src/c4_client/p1_data_structure.rs:58:25
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn child(&self, pre_state: &SM::State, extrinsics: Vec<u8>) -> Self {
[INFO] [stdout]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extrinsics`
[INFO] [stdout]   --> src/c4_client/p1_data_structure.rs:58:48
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn child(&self, pre_state: &SM::State, extrinsics: Vec<u8>) -> Self {
[INFO] [stdout]    |                                                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extrinsics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pre_state`
[INFO] [stdout]   --> src/c4_client/p1_data_structure.rs:63:36
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn verify_sub_chain(&self, pre_state: &SM::State, chain: &[Self]) -> bool {
[INFO] [stdout]    |                                    ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chain`
[INFO] [stdout]   --> src/c4_client/p1_data_structure.rs:63:59
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn verify_sub_chain(&self, pre_state: &SM::State, chain: &[Self]) -> bool {
[INFO] [stdout]    |                                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/c4_client/p1_data_structure.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     n: u64,
[INFO] [stdout]    |     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `genesis_state`
[INFO] [stdout]   --> src/c4_client/p1_data_structure.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     genesis_state: &SM::State,
[INFO] [stdout]    |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_genesis_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `genesis_state`
[INFO] [stdout]   --> src/c4_client/p1_data_structure.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn new(genesis_state: SM::State) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_genesis_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block_hash`
[INFO] [stdout]   --> src/c4_client/p2_importing_blocks.rs:41:25
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn get_block(&self, block_hash: u64) -> Option<Block<C, SM>> {
[INFO] [stdout]    |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_block_hash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block_hash`
[INFO] [stdout]   --> src/c4_client/p2_importing_blocks.rs:45:25
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn get_state(&self, block_hash: u64) -> Option<<SM as StateMachine>::State> {
[INFO] [stdout]    |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_block_hash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block_hash`
[INFO] [stdout]   --> src/c4_client/p2_importing_blocks.rs:49:23
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn is_leaf(&self, block_hash: u64) -> Option<bool> {
[INFO] [stdout]    |                       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_block_hash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c4_client/p3_fork_choice.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn best_block(&self, header: Header<C::Digest>) -> Option<u64> {
[INFO] [stdout]    |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c4_client/p3_fork_choice.rs:36:31
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn import_hook(&mut self, header: Header<C::Digest>) {
[INFO] [stdout]    |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c4_client/p3_fork_choice.rs:49:26
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn best_block(&self, header: Header<u64>) -> Option<u64> {
[INFO] [stdout]    |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c4_client/p3_fork_choice.rs:53:31
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn import_hook(&mut self, header: Header<u64>) {
[INFO] [stdout]    |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c4_client/p3_fork_choice.rs:66:26
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn best_block(&self, header: Header<ConsensusAuthority>) -> Option<u64> {
[INFO] [stdout]    |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c4_client/p3_fork_choice.rs:70:31
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn import_hook(&mut self, header: Header<ConsensusAuthority>) {
[INFO] [stdout]    |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c4_client/p3_fork_choice.rs:83:26
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn best_block(&self, header: Header<u64>) -> Option<u64> {
[INFO] [stdout]    |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c4_client/p3_fork_choice.rs:87:31
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn import_hook(&mut self, header: Header<u64>) {
[INFO] [stdout]    |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/c4_client/p4_transaction_pool.rs:48:42
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn submit_transaction(&mut self, t: SM::Transition) {
[INFO] [stdout]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/c4_client/p4_transaction_pool.rs:59:33
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn pool_contains(&self, t: SM::Transition) -> bool {
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/c4_client/p4_transaction_pool.rs:68:30
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn try_insert(&mut self, t: <SM as StateMachine>::Transition) -> bool {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/c4_client/p4_transaction_pool.rs:72:26
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn remove(&mut self, t: <SM as StateMachine>::Transition) {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/c4_client/p4_transaction_pool.rs:80:24
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn contains(&self, t: <SM as StateMachine>::Transition) -> bool {
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/c4_client/p4_transaction_pool.rs:110:30
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn try_insert(&mut self, t: <SM as StateMachine>::Transition) -> bool {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/c4_client/p4_transaction_pool.rs:114:26
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn remove(&mut self, t: <SM as StateMachine>::Transition) {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/c4_client/p4_transaction_pool.rs:122:24
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn contains(&self, t: <SM as StateMachine>::Transition) -> bool {
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/c4_client/p4_transaction_pool.rs:145:30
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn try_insert(&mut self, t: <SM as StateMachine>::Transition) -> bool {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/c4_client/p4_transaction_pool.rs:149:26
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn remove(&mut self, t: <SM as StateMachine>::Transition) {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/c4_client/p4_transaction_pool.rs:157:24
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn contains(&self, t: <SM as StateMachine>::Transition) -> bool {
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transactions`
[INFO] [stdout]   --> src/c4_client/p5_authoring_blocks.rs:13:54
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn author_and_import_manual_block(&mut self, transactions: Vec<SM::Transition>, parent_hash: u64) {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transactions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent_hash`
[INFO] [stdout]   --> src/c4_client/p5_authoring_blocks.rs:13:89
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn author_and_import_manual_block(&mut self, transactions: Vec<SM::Transition>, parent_hash: u64) {
[INFO] [stdout]    |                                                                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_hash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block_hash`
[INFO] [stdout]   --> src/c4_client/p6_finality.rs:13:47
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn manually_finalize_block(&mut self, block_hash: u64) -> bool {
[INFO] [stdout]    |                                               ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_block_hash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `diy-blockchain` (lib) due to 4 previous errors; 132 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "79ff19cf7683ce418e379260d3aa64bc3b64955aed0703aa9db4c16c37584952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79ff19cf7683ce418e379260d3aa64bc3b64955aed0703aa9db4c16c37584952", kill_on_drop: false }`
[INFO] [stdout] 79ff19cf7683ce418e379260d3aa64bc3b64955aed0703aa9db4c16c37584952
