[INFO] cloning repository https://github.com/philoniare/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/philoniare/blockchain-from-scratch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphiloniare%2Fblockchain-from-scratch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphiloniare%2Fblockchain-from-scratch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5d0b0142c2f64c96b492e52171c0bc8d6a9d87c
[INFO] checking philoniare/blockchain-from-scratch against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphiloniare%2Fblockchain-from-scratch" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/philoniare/blockchain-from-scratch on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/philoniare/blockchain-from-scratch
[INFO] finished tweaking git repo https://github.com/philoniare/blockchain-from-scratch
[INFO] tweaked toml for git repo https://github.com/philoniare/blockchain-from-scratch written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/philoniare/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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11d759d01179df2dbace2ad76b1bf4337aa91f1261f2b97d84130e87375d9a7d
[INFO] running `Command { std: "docker" "start" "-a" "11d759d01179df2dbace2ad76b1bf4337aa91f1261f2b97d84130e87375d9a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11d759d01179df2dbace2ad76b1bf4337aa91f1261f2b97d84130e87375d9a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11d759d01179df2dbace2ad76b1bf4337aa91f1261f2b97d84130e87375d9a7d", kill_on_drop: false }`
[INFO] [stdout] 11d759d01179df2dbace2ad76b1bf4337aa91f1261f2b97d84130e87375d9a7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6902563e6403e0de31c85b4e2087393b72f2112e07571dc61e374c527553560d
[INFO] running `Command { std: "docker" "start" "-a" "6902563e6403e0de31c85b4e2087393b72f2112e07571dc61e374c527553560d", kill_on_drop: false }`
[INFO] [stderr]     Checking blockchain-from-scratch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/c1_state_machine/p1_switches.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 if (starting_state.first_switch) {
[INFO] [stdout]    |                    ^                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 48 -                 if (starting_state.first_switch) {
[INFO] [stdout] 48 +                 if starting_state.first_switch {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/c1_state_machine/p3_atm.rs:100:11
[INFO] [stdout]     |
[INFO] [stdout] 100 | ...                   if(withdraw_amount <= new_state.cash_inside) {
[INFO] [stdout]     |                         ^                                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 100 -                                 if(withdraw_amount <= new_state.cash_inside) {
[INFO] [stdout] 100 +                                 if withdraw_amount <= new_state.cash_inside {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Block`, `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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::current`
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::thread::current;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::current`
[INFO] [stdout]  --> src/c2_blockchain/p4_batched_extrinsics.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::thread::current;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::hash::Hash;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/c1_state_machine/p1_switches.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 if (starting_state.first_switch) {
[INFO] [stdout]    |                    ^                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 48 -                 if (starting_state.first_switch) {
[INFO] [stdout] 48 +                 if starting_state.first_switch {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/c1_state_machine/p3_atm.rs:100:11
[INFO] [stdout]     |
[INFO] [stdout] 100 | ...                   if(withdraw_amount <= new_state.cash_inside) {
[INFO] [stdout]     |                         ^                                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 100 -                                 if(withdraw_amount <= new_state.cash_inside) {
[INFO] [stdout] 100 +                                 if withdraw_amount <= new_state.cash_inside {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Block`, `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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::current`
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::thread::current;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::current`
[INFO] [stdout]  --> src/c2_blockchain/p4_batched_extrinsics.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::thread::current;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::hash::Hash;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fork_height`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:48:2
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fork_height: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fork_height`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `initial_authorities`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:49:2
[INFO] [stdout]    |
[INFO] [stdout] 49 |     initial_authorities: Vec<ConsensusAuthority>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initial_authorities`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `final_authorities`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:50:2
[INFO] [stdout]    |
[INFO] [stdout] 50 |     final_authorities: Vec<ConsensusAuthority>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_final_authorities`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fork_height`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:57:2
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fork_height: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fork_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `initial_difficulty`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:58:2
[INFO] [stdout]    |
[INFO] [stdout] 58 |     initial_difficulty: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initial_difficulty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `final_difficulty`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:59:2
[INFO] [stdout]    |
[INFO] [stdout] 59 |     final_difficulty: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_final_difficulty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fork_height`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:72:49
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn even_after_given_height<Original: Consensus>(fork_height: u64) -> impl Consensus {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fork_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fork_height`
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:105:2
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fork_height: u64,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fork_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `difficulty`
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:106:2
[INFO] [stdout]     |
[INFO] [stdout] 106 |     difficulty: u64,
[INFO] [stdout]     |     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_difficulty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `authorities`
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:107:2
[INFO] [stdout]     |
[INFO] [stdout] 107 |     authorities: Vec<ConsensusAuthority>,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_authorities`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fork_height`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:48:2
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fork_height: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fork_height`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `initial_authorities`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:49:2
[INFO] [stdout]    |
[INFO] [stdout] 49 |     initial_authorities: Vec<ConsensusAuthority>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initial_authorities`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `final_authorities`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:50:2
[INFO] [stdout]    |
[INFO] [stdout] 50 |     final_authorities: Vec<ConsensusAuthority>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_final_authorities`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fork_height`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:57:2
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fork_height: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fork_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `initial_difficulty`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:58:2
[INFO] [stdout]    |
[INFO] [stdout] 58 |     initial_difficulty: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initial_difficulty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `final_difficulty`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:59:2
[INFO] [stdout]    |
[INFO] [stdout] 59 |     final_difficulty: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_final_difficulty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fork_height`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:72:49
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn even_after_given_height<Original: Consensus>(fork_height: u64) -> impl Consensus {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fork_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fork_height`
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:105:2
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fork_height: u64,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fork_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `difficulty`
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:106:2
[INFO] [stdout]     |
[INFO] [stdout] 106 |     difficulty: u64,
[INFO] [stdout]     |     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_difficulty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `authorities`
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:107:2
[INFO] [stdout]     |
[INFO] [stdout] 107 |     authorities: Vec<ConsensusAuthority>,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_authorities`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/c1_state_machine/p1_switches.rs:17:39
[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: `pin`
[INFO] [stdout]    --> src/c1_state_machine/p3_atm.rs:112:29
[INFO] [stdout]     |
[INFO] [stdout] 112 | ...                   Auth::Authenticating(pin) => {
[INFO] [stdout]     |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_pin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 |             _ => {},
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 _ => {
[INFO] [stdout]    |                 ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:81:22
[INFO] [stdout]    |
[INFO] [stdout] 81 | 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: variable does not need to be mutable
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut header = self;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extrinsic_sum`
[INFO] [stdout]    --> src/c2_blockchain/p6_rich_state.rs:118:7
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let extrinsic_sum: u64 = extrinsics.iter().sum();
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extrinsic_sum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/c2_blockchain/p6_rich_state.rs:169:6
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let mut new_state = pre_state.clone();
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:21:39
[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:27:35
[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:22:39
[INFO] [stdout]    |
[INFO] [stdout] 22 |     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:27:35
[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: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |     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:23:51
[INFO] [stdout]    |
[INFO] [stdout] 23 |     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:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 |         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:30:3
[INFO] [stdout]    |
[INFO] [stdout] 30 |         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:46:21
[INFO] [stdout]    |
[INFO] [stdout] 46 |     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:46:51
[INFO] [stdout]    |
[INFO] [stdout] 46 |     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:52:3
[INFO] [stdout]    |
[INFO] [stdout] 52 |         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:53:3
[INFO] [stdout]    |
[INFO] [stdout] 53 |         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:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |     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:84:51
[INFO] [stdout]    |
[INFO] [stdout] 84 |     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:90:3
[INFO] [stdout]    |
[INFO] [stdout] 90 |         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:91:3
[INFO] [stdout]    |
[INFO] [stdout] 91 |         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:20:21
[INFO] [stdout]    |
[INFO] [stdout] 20 |     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:20:51
[INFO] [stdout]    |
[INFO] [stdout] 20 |     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:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         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:27:3
[INFO] [stdout]    |
[INFO] [stdout] 27 |         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:31:21
[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:31:51
[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:37:3
[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:38:3
[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:74:3
[INFO] [stdout]    |
[INFO] [stdout] 74 |         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:75:3
[INFO] [stdout]    |
[INFO] [stdout] 75 |         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:99:35
[INFO] [stdout]    |
[INFO] [stdout] 99 |     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_framework/mod.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |     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_framework/mod.rs:24:18
[INFO] [stdout]    |
[INFO] [stdout] 24 |     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_framework/mod.rs:24:36
[INFO] [stdout]    |
[INFO] [stdout] 24 |     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_framework/mod.rs:29:25
[INFO] [stdout]    |
[INFO] [stdout] 29 |     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_framework/mod.rs:34:29
[INFO] [stdout]    |
[INFO] [stdout] 34 |     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_framework/mod.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |     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_framework/mod.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |     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_framework/mod.rs:51:45
[INFO] [stdout]    |
[INFO] [stdout] 51 |     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_framework/mod.rs:56:33
[INFO] [stdout]    |
[INFO] [stdout] 56 |     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_framework/mod.rs:56:56
[INFO] [stdout]    |
[INFO] [stdout] 56 |     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_framework/mod.rs:64:2
[INFO] [stdout]    |
[INFO] [stdout] 64 |     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_framework/mod.rs:65:2
[INFO] [stdout]    |
[INFO] [stdout] 65 |     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: associated functions `next_state` and `human_name` are never used
[INFO] [stdout]   --> src/c1_state_machine/mod.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait StateMachine {
[INFO] [stdout]    |           ------------ associated functions in this trait
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn next_state(starting_state: &Self::State, t: &Self::Transition) -> Self::State;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn human_name() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Alice`, `Bob`, and `Charlie` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/mod.rs:34:2
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub enum User {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 34 |     Alice,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 35 |     Bob,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 36 |     Charlie,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `User` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LightSwitch` is never constructed
[INFO] [stdout]  --> src/c1_state_machine/p1_switches.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct LightSwitch;
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WeirdSwitchMachine` is never constructed
[INFO] [stdout]   --> src/c1_state_machine/p1_switches.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct WeirdSwitchMachine;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `FirstSwitch` and `SecondSwitch` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p1_switches.rs:35:2
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum Toggle {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 35 |     FirstSwitch,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 36 |     SecondSwitch,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ClothesMachine` is never constructed
[INFO] [stdout]  --> src/c1_state_machine/p2_laundry_machine.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct ClothesMachine;
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Wear`, `Wash`, and `Dry` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p2_laundry_machine.rs:29:2
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum ClothesAction {
[INFO] [stdout]    |          ------------- variants in this enum
[INFO] [stdout] 28 |     /// Wearing clothes decreases their life by 1 and makes them dirty.
[INFO] [stdout] 29 |     Wear,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 30 |     /// Washing clothes decreases their life by 1, and makes them wet.
[INFO] [stdout] 31 |     Wash,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     Dry,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `One`, `Two`, `Three`, `Four`, and `Enter` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p3_atm.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub enum Key {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] 10 |     One,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 11 |     Two,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 12 |     Three,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 13 |     Four,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     Enter,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Key` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `SwipeCard` and `PressKey` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p3_atm.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum Action {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     SwipeCard(u64),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 22 |     /// Press a key on the keypad
[INFO] [stdout] 23 |     PressKey(Key),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AccountedCurrency` is never constructed
[INFO] [stdout]   --> src/c1_state_machine/p4_accounted_currency.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct AccountedCurrency;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Mint`, `Burn`, and `Transfer` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p4_accounted_currency.rs:29:2
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum AccountingTransaction {
[INFO] [stdout]    |          --------------------- variants in this enum
[INFO] [stdout] 28 |     /// Create some new money for the given minter in the given amount
[INFO] [stdout] 29 |     Mint { minter: User, amount: u64 },
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     Burn { burner: User, amount: u64 },
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 34 |     /// Send some tokens from one account to another
[INFO] [stdout] 35 |     Transfer { sender: User, receiver: User, amount: u64 },
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_serial` is never used
[INFO] [stdout]   --> src/c1_state_machine/p5_digital_cash.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl State {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn set_serial(&mut self, serial: u64) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Mint` and `Transfer` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p5_digital_cash.rs:76:2
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub enum CashTransaction {
[INFO] [stdout]    |          --------------- variants in this enum
[INFO] [stdout] 75 |     /// Mint a single new bill owned by the minter
[INFO] [stdout] 76 |     Mint { minter: User, amount: u64 },
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     Transfer { spends: Vec<Bill>, receives: Vec<Bill> },
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Thursday` and `Friday` are never constructed
[INFO] [stdout]  --> src/c1_state_machine/p6_open_ended.rs:4:2
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum DayOfWeek {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 4 |     Thursday,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 5 |     Wednesday,
[INFO] [stdout] 6 |     Friday,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Founder` is never constructed
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:26:2
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum Track {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 26 |     Founder,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Track` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `DecideOnNextCourseOfAction`, `Code`, and `DayDream` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:45:2
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub enum Transition {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] 45 |     DecideOnNextCourseOfAction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 46 |     Code,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 47 |     DayDream,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `genesis`, `child`, and `verify_sub_chain` are never used
[INFO] [stdout]   --> src/c2_blockchain/p1_header_chain.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Header {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 25 |     /// Returns a new valid genesis header.
[INFO] [stdout] 26 |     fn genesis() -> Self {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn child(&self) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_valid_chain_length_5` is never used
[INFO] [stdout]   --> src/c2_blockchain/p1_header_chain.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn build_valid_chain_length_5() -> Vec<Header> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_an_invalid_chain` is never used
[INFO] [stdout]   --> src/c2_blockchain/p1_header_chain.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn build_an_invalid_chain() -> Vec<Header> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `genesis`, `child`, and `verify_sub_chain` are never used
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl Header {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 33 |     /// Returns a new valid genesis header.
[INFO] [stdout] 34 |     fn genesis() -> Self {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn child(&self, extrinsic: u64) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_valid_chain` is never used
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn build_valid_chain(n: u64) -> Vec<Header> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_an_invalid_chain` is never used
[INFO] [stdout]    --> src/c2_blockchain/p2_extrinsic_state.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn build_an_invalid_chain() -> Vec<Header> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_forked_chain` is never used
[INFO] [stdout]    --> src/c2_blockchain/p2_extrinsic_state.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn build_forked_chain() -> (Vec<Header>, Vec<Header>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `THRESHOLD` is never used
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const THRESHOLD: u64 = u64::max_value() / 100;
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FORK_HEIGHT` is never used
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 | const FORK_HEIGHT: u64 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `genesis`, `child`, `verify_sub_chain`, `verify_sub_chain_even`, and `verify_sub_chain_odd` are never used
[INFO] [stdout]    --> src/c2_blockchain/p3_consensus.rs:40:5
[INFO] [stdout]     |
[INFO] [stdout] 38  | impl Header {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 39  |     /// Returns a new valid genesis header.
[INFO] [stdout] 40  |     fn genesis() -> Self {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45  |     fn child(&self, extrinsic: u64) -> Self {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66  |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 97  |     fn verify_sub_chain_even(&self, chain: &[Header]) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     fn verify_sub_chain_odd(&self, chain: &[Header]) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_contentious_forked_chain` is never used
[INFO] [stdout]    --> src/c2_blockchain/p3_consensus.rs:174:4
[INFO] [stdout]     |
[INFO] [stdout] 174 | fn build_contentious_forked_chain() -> (Vec<Header>, Vec<Header>, Vec<Header>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `genesis`, `child`, `verify_child`, and `verify_sub_chain` are never used
[INFO] [stdout]   --> src/c2_blockchain/p4_batched_extrinsics.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl Header {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 30 |     /// Returns a new valid genesis header.
[INFO] [stdout] 31 |     pub fn genesis() -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn child(&self, extrinsics_root: Hash, state: u64) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn verify_child(&self, child: &Header) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `genesis`, `child`, and `verify_sub_chain` are never used
[INFO] [stdout]    --> src/c2_blockchain/p4_batched_extrinsics.rs:89:9
[INFO] [stdout]     |
[INFO] [stdout] 87  | impl Block {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] 88  |     /// Returns a new valid genesis block. By convention this block has no extrinsics.
[INFO] [stdout] 89  |     pub fn genesis() -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 97  |     pub fn child(&self, extrinsics: Vec<u64>) -> Self {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     pub fn verify_sub_chain(&self, chain: &[Block]) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_invalid_child_block_with_valid_header` is never used
[INFO] [stdout]    --> src/c2_blockchain/p4_batched_extrinsics.rs:133:4
[INFO] [stdout]     |
[INFO] [stdout] 133 | fn build_invalid_child_block_with_valid_header(parent: &Header) -> Block {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ForkChoice` is never used
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait ForkChoice {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LongestChainRule` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct LongestChainRule;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HeaviestChainRule` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct HeaviestChainRule;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mine_extra_hard` is never used
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn mine_extra_hard(block: &mut Block, threshold: u64) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MostBlocksWithEvenHash` is never constructed
[INFO] [stdout]    --> src/c2_blockchain/p5_fork_choice.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub struct MostBlocksWithEvenHash;
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fork_one_side_longer_other_side_heavier` is never used
[INFO] [stdout]    --> src/c2_blockchain/p5_fork_choice.rs:139:4
[INFO] [stdout]     |
[INFO] [stdout] 139 | fn create_fork_one_side_longer_other_side_heavier() -> (Vec<Header>, Vec<Header>, Vec<Header>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `genesis`, `child`, `verify_child`, and `verify_sub_chain` are never used
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl Header {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 50 |     /// Returns a new valid genesis header.
[INFO] [stdout] 51 |     fn genesis(genesis_state_root: Hash) -> Self {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn child(&self, extrinsics_root: Hash, state_root: Hash) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     fn verify_child(&self, child: &Header) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `genesis`, `child`, and `verify_sub_chain` are never used
[INFO] [stdout]    --> src/c2_blockchain/p6_rich_state.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 107 | impl Block {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] 108 |     /// Returns a new valid genesis block. By convention this block has no extrinsics.
[INFO] [stdout] 109 |     pub fn genesis(genesis_state: &State) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn child(&self, pre_state: &State, extrinsics: Vec<u64>) -> Self {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 |     pub fn verify_sub_chain(&self, pre_state: &State, chain: &[Block]) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_invalid_child_block_with_valid_header` is never used
[INFO] [stdout]    --> src/c2_blockchain/p6_rich_state.rs:164:4
[INFO] [stdout]     |
[INFO] [stdout] 164 | fn build_invalid_child_block_with_valid_header(parent: &Header, pre_state: &State) -> Block {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `validate`, `seal`, `verify_sub_chain`, and `human_name` are never used
[INFO] [stdout]   --> src/c3_consensus/mod.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub trait Consensus {
[INFO] [stdout]    |           --------- associated items in this trait
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn seal(
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     fn verify_sub_chain(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn human_name() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Alice`, `Bob`, and `Charlie` are never constructed
[INFO] [stdout]    --> src/c3_consensus/mod.rs:108:2
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub enum ConsensusAuthority {
[INFO] [stdout]     |          ------------------ variants in this enum
[INFO] [stdout] 108 |     Alice,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 109 |     Bob,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 110 |     Charlie,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ConsensusAuthority` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `threshold` is never read
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:13:2
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct PoW {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 13 |     threshold: u64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `moderate_difficulty_pow` is never used
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn moderate_difficulty_pow() -> impl Consensus {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DictatorConsensus` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p2_dictator.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct DictatorConsensus {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SimplePoa` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct SimplePoa {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PoaRoundRobinByHeight` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct PoaRoundRobinByHeight {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PoaRoundRobinBySlot` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | struct PoaRoundRobinBySlot {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EvenOnly` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p4_even_only.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct EvenOnly<Inner: Consensus>(PhantomData<Inner>);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `almost_valid_but_not_all_even` is never used
[INFO] [stdout]   --> src/c3_consensus/p4_even_only.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn almost_valid_but_not_all_even() -> Vec<Header<u64>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AlternatingPowPoa` is never constructed
[INFO] [stdout]  --> src/c3_consensus/p5_interleave.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct AlternatingPowPoa;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Forked` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Forked<D, Before, After> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `change_authorities` is never used
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn change_authorities(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `change_difficulty` is never used
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn change_difficulty(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `even_after_given_height` is never used
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn even_after_given_height<Original: Consensus>(fork_height: u64) -> impl Consensus {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pow_to_poa` is never used
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn pow_to_poa(
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Hash` is never used
[INFO] [stdout]   --> src/c4_framework/mod.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | type Hash = u64;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `genesis`, `child`, `verify_child`, and `verify_sub_chain` are never used
[INFO] [stdout]   --> src/c4_framework/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<Digest> Header<Digest> {
[INFO] [stdout]    | --------------------------- associated items in this implementation
[INFO] [stdout] 18 |     /// Returns a new valid genesis header.
[INFO] [stdout] 19 |     fn genesis(genesis_state_root: Hash) -> Self {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn child(&self, state_root: Hash, extrinsics_root: Hash) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn verify_child(&self, child: &Self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn verify_sub_chain(&self, chain: &[Self]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Block` is never constructed
[INFO] [stdout]   --> src/c4_framework/mod.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Block<C: Consensus, SM: StateMachine> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `genesis`, `child`, and `verify_sub_chain` are never used
[INFO] [stdout]   --> src/c4_framework/mod.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl<C: Consensus, SM: StateMachine> Block<C, SM> {
[INFO] [stdout]    | ------------------------------------------------- associated items in this implementation
[INFO] [stdout] 45 |     /// Returns a new valid genesis block. By convention this block has no extrinsics.
[INFO] [stdout] 46 |     pub fn genesis(genesis_state: &SM::State) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn child(&self, pre_state: &SM::State, extrinsics: Vec<u8>) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn verify_sub_chain(&self, pre_state: &SM::State, chain: &[Self]) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_empty_chain` is never used
[INFO] [stdout]   --> src/c4_framework/mod.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn create_empty_chain<C: Consensus, SM: StateMachine>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 123 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/c1_state_machine/p1_switches.rs:17:39
[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: `pin`
[INFO] [stdout]    --> src/c1_state_machine/p3_atm.rs:112:29
[INFO] [stdout]     |
[INFO] [stdout] 112 | ...                   Auth::Authenticating(pin) => {
[INFO] [stdout]     |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_pin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 |             _ => {},
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 _ => {
[INFO] [stdout]    |                 ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:81:22
[INFO] [stdout]    |
[INFO] [stdout] 81 | 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: variable does not need to be mutable
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut header = self;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extrinsic_sum`
[INFO] [stdout]    --> src/c2_blockchain/p6_rich_state.rs:118:7
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let extrinsic_sum: u64 = extrinsics.iter().sum();
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extrinsic_sum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/c2_blockchain/p6_rich_state.rs:169:6
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let mut new_state = pre_state.clone();
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:21:39
[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:27:35
[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:22:39
[INFO] [stdout]    |
[INFO] [stdout] 22 |     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:27:35
[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: `parent_digest`
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |     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:23:51
[INFO] [stdout]    |
[INFO] [stdout] 23 |     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:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 |         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:30:3
[INFO] [stdout]    |
[INFO] [stdout] 30 |         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:46:21
[INFO] [stdout]    |
[INFO] [stdout] 46 |     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:46:51
[INFO] [stdout]    |
[INFO] [stdout] 46 |     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:52:3
[INFO] [stdout]    |
[INFO] [stdout] 52 |         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:53:3
[INFO] [stdout]    |
[INFO] [stdout] 53 |         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:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |     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:84:51
[INFO] [stdout]    |
[INFO] [stdout] 84 |     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:90:3
[INFO] [stdout]    |
[INFO] [stdout] 90 |         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:91:3
[INFO] [stdout]    |
[INFO] [stdout] 91 |         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:20:21
[INFO] [stdout]    |
[INFO] [stdout] 20 |     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:20:51
[INFO] [stdout]    |
[INFO] [stdout] 20 |     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:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |         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:27:3
[INFO] [stdout]    |
[INFO] [stdout] 27 |         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:31:21
[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:31:51
[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:37:3
[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:38:3
[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:74:3
[INFO] [stdout]    |
[INFO] [stdout] 74 |         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:75:3
[INFO] [stdout]    |
[INFO] [stdout] 75 |         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:99:35
[INFO] [stdout]    |
[INFO] [stdout] 99 |     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_framework/mod.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |     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_framework/mod.rs:24:18
[INFO] [stdout]    |
[INFO] [stdout] 24 |     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_framework/mod.rs:24:36
[INFO] [stdout]    |
[INFO] [stdout] 24 |     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_framework/mod.rs:29:25
[INFO] [stdout]    |
[INFO] [stdout] 29 |     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_framework/mod.rs:34:29
[INFO] [stdout]    |
[INFO] [stdout] 34 |     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_framework/mod.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |     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_framework/mod.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |     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_framework/mod.rs:51:45
[INFO] [stdout]    |
[INFO] [stdout] 51 |     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_framework/mod.rs:56:33
[INFO] [stdout]    |
[INFO] [stdout] 56 |     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_framework/mod.rs:56:56
[INFO] [stdout]    |
[INFO] [stdout] 56 |     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_framework/mod.rs:64:2
[INFO] [stdout]    |
[INFO] [stdout] 64 |     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_framework/mod.rs:65:2
[INFO] [stdout]    |
[INFO] [stdout] 65 |     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: associated function `human_name` is never used
[INFO] [stdout]   --> src/c1_state_machine/mod.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait StateMachine {
[INFO] [stdout]    |           ------------ associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn human_name() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Thursday` and `Friday` are never constructed
[INFO] [stdout]  --> src/c1_state_machine/p6_open_ended.rs:4:2
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum DayOfWeek {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 4 |     Thursday,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 5 |     Wednesday,
[INFO] [stdout] 6 |     Friday,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Founder` is never constructed
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:26:2
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum Track {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 26 |     Founder,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Track` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `DecideOnNextCourseOfAction`, `Code`, and `DayDream` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:45:2
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub enum Transition {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] 45 |     DecideOnNextCourseOfAction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 46 |     Code,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 47 |     DayDream,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_valid_chain` is never used
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn build_valid_chain(n: u64) -> Vec<Header> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_an_invalid_chain` is never used
[INFO] [stdout]    --> src/c2_blockchain/p2_extrinsic_state.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn build_an_invalid_chain() -> Vec<Header> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FORK_HEIGHT` is never used
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 | const FORK_HEIGHT: u64 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `verify_sub_chain` is never used
[INFO] [stdout]   --> src/c2_blockchain/p4_batched_extrinsics.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl Header {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `verify_sub_chain` is never used
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl Header {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `validate`, `seal`, `verify_sub_chain`, and `human_name` are never used
[INFO] [stdout]   --> src/c3_consensus/mod.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub trait Consensus {
[INFO] [stdout]    |           --------- associated items in this trait
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn seal(
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     fn verify_sub_chain(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn human_name() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Alice`, `Bob`, and `Charlie` are never constructed
[INFO] [stdout]    --> src/c3_consensus/mod.rs:108:2
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub enum ConsensusAuthority {
[INFO] [stdout]     |          ------------------ variants in this enum
[INFO] [stdout] 108 |     Alice,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 109 |     Bob,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 110 |     Charlie,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ConsensusAuthority` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `threshold` is never read
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:13:2
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct PoW {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 13 |     threshold: u64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `moderate_difficulty_pow` is never used
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn moderate_difficulty_pow() -> impl Consensus {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DictatorConsensus` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p2_dictator.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct DictatorConsensus {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SimplePoa` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct SimplePoa {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PoaRoundRobinByHeight` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct PoaRoundRobinByHeight {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PoaRoundRobinBySlot` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p3_poa.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | struct PoaRoundRobinBySlot {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EvenOnly` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p4_even_only.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct EvenOnly<Inner: Consensus>(PhantomData<Inner>);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `almost_valid_but_not_all_even` is never used
[INFO] [stdout]   --> src/c3_consensus/p4_even_only.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn almost_valid_but_not_all_even() -> Vec<Header<u64>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AlternatingPowPoa` is never constructed
[INFO] [stdout]  --> src/c3_consensus/p5_interleave.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct AlternatingPowPoa;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Forked` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Forked<D, Before, After> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `change_authorities` is never used
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn change_authorities(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `change_difficulty` is never used
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn change_difficulty(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `even_after_given_height` is never used
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn even_after_given_height<Original: Consensus>(fork_height: u64) -> impl Consensus {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pow_to_poa` is never used
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn pow_to_poa(
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Hash` is never used
[INFO] [stdout]   --> src/c4_framework/mod.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | type Hash = u64;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `genesis`, `child`, `verify_child`, and `verify_sub_chain` are never used
[INFO] [stdout]   --> src/c4_framework/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<Digest> Header<Digest> {
[INFO] [stdout]    | --------------------------- associated items in this implementation
[INFO] [stdout] 18 |     /// Returns a new valid genesis header.
[INFO] [stdout] 19 |     fn genesis(genesis_state_root: Hash) -> Self {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn child(&self, state_root: Hash, extrinsics_root: Hash) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn verify_child(&self, child: &Self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn verify_sub_chain(&self, chain: &[Self]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Block` is never constructed
[INFO] [stdout]   --> src/c4_framework/mod.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Block<C: Consensus, SM: StateMachine> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `genesis`, `child`, and `verify_sub_chain` are never used
[INFO] [stdout]   --> src/c4_framework/mod.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl<C: Consensus, SM: StateMachine> Block<C, SM> {
[INFO] [stdout]    | ------------------------------------------------- associated items in this implementation
[INFO] [stdout] 45 |     /// Returns a new valid genesis block. By convention this block has no extrinsics.
[INFO] [stdout] 46 |     pub fn genesis(genesis_state: &SM::State) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn child(&self, pre_state: &SM::State, extrinsics: Vec<u8>) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn verify_sub_chain(&self, pre_state: &SM::State, chain: &[Self]) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_empty_chain` is never used
[INFO] [stdout]   --> src/c4_framework/mod.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn create_empty_chain<C: Consensus, SM: StateMachine>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 93 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "6902563e6403e0de31c85b4e2087393b72f2112e07571dc61e374c527553560d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6902563e6403e0de31c85b4e2087393b72f2112e07571dc61e374c527553560d", kill_on_drop: false }`
[INFO] [stdout] 6902563e6403e0de31c85b4e2087393b72f2112e07571dc61e374c527553560d