[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] testing philoniare/blockchain-from-scratch against try#0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6 for pr-137122-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphiloniare%2Fblockchain-from-scratch" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[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-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/philoniare/blockchain-from-scratch on toolchain 0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc56d2d92f21543a8b56a0e6a5abd78658327174cc545467514f709b5e03335c
[INFO] running `Command { std: "docker" "start" "-a" "cc56d2d92f21543a8b56a0e6a5abd78658327174cc545467514f709b5e03335c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc56d2d92f21543a8b56a0e6a5abd78658327174cc545467514f709b5e03335c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc56d2d92f21543a8b56a0e6a5abd78658327174cc545467514f709b5e03335c", kill_on_drop: false }`
[INFO] [stdout] cc56d2d92f21543a8b56a0e6a5abd78658327174cc545467514f709b5e03335c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d1874f12b0697345b6a59b2e1d41098042868fa2b5ed3d05ddaa81e1fc73ede
[INFO] running `Command { std: "docker" "start" "-a" "2d1874f12b0697345b6a59b2e1d41098042868fa2b5ed3d05ddaa81e1fc73ede", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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` and `Header`
[INFO] [stdout]  --> src/c2_blockchain/mod.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use p6_rich_state::{Block, Header};
[INFO] [stdout]   |                         ^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn moderate_difficulty_pow() -> impl Consensus {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:35:37
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn moderate_difficulty_pow() -> impl Consensus {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | / fn change_authorities(
[INFO] [stdout] 48 | |     fork_height: u64,
[INFO] [stdout] 49 | |     initial_authorities: Vec<ConsensusAuthority>,
[INFO] [stdout] 50 | |     final_authorities: Vec<ConsensusAuthority>,
[INFO] [stdout] 51 | | ) -> impl Consensus {
[INFO] [stdout]    | |___________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 | ) -> impl Consensus {
[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: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:56:1
[INFO] [stdout]    |
[INFO] [stdout] 56 | / fn change_difficulty(
[INFO] [stdout] 57 | |     fork_height: u64,
[INFO] [stdout] 58 | |     initial_difficulty: u64,
[INFO] [stdout] 59 | |     final_difficulty: u64,
[INFO] [stdout] 60 | | ) -> impl Consensus {
[INFO] [stdout]    | |___________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 | ) -> impl Consensus {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[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: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:72:1
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn even_after_given_height<Original: Consensus>(fork_height: u64) -> impl Consensus {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:72:70
[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: 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: this function depends on never type fallback being `()`
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:104:1
[INFO] [stdout]     |
[INFO] [stdout] 104 | / fn pow_to_poa(
[INFO] [stdout] 105 | |     fork_height: u64,
[INFO] [stdout] 106 | |     difficulty: u64,
[INFO] [stdout] 107 | |     authorities: Vec<ConsensusAuthority>,
[INFO] [stdout] 108 | | ) -> impl Consensus {
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]     = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:108:6
[INFO] [stdout]     |
[INFO] [stdout] 108 | ) -> impl Consensus {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^
[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]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 58 |             Transition::DecideOnNextCourseOfAction => {
[INFO] [stdout]    |             -------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 68 |             Transition::Code => match get_day_of_week() {
[INFO] [stdout]    |             ---------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 81 |             Transition::DayDream => {
[INFO] [stdout]    |             -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 86 |             _ => {},
[INFO] [stdout]    |             ^ collectively making this unreachable
[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]    |                 ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 DayOfWeek::Wednesday => {
[INFO] [stdout]    |                 -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 73 |                 DayOfWeek::Thursday | DayOfWeek::Friday => {
[INFO] [stdout]    |                 --------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 76 |                 _ => {
[INFO] [stdout]    |                 ^ collectively making this unreachable
[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: function `hash` is never used
[INFO] [stdout]   --> src/lib.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn hash<T: Hash>(t: &T) -> u64 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[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] 
[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 `Clean`, `Dirty`, `Wet`, and `Tattered` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p2_laundry_machine.rs:15:2
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum ClothesState {
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] 14 |     /// Clean clothes ready to be worn. With some given life left.
[INFO] [stdout] 15 |     Clean(u64),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     /// Dirty clothes. With some given life left.
[INFO] [stdout] 17 |     Dirty(u64),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     Wet(u64),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     Tattered,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClothesState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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: variants `Waiting`, `Authenticating`, and `Authenticated` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p3_atm.rs:30:2
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum Auth {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 29 |     /// No session has begun yet. Waiting for the user to swipe their card
[INFO] [stdout] 30 |     Waiting,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     Authenticating(u64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     Authenticated,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Auth` 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: function `verify_pin` is never used
[INFO] [stdout]   --> src/c1_state_machine/p3_atm.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn verify_pin(_keys: &Vec<Key>, hash: u64) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `keys_to_amount` is never used
[INFO] [stdout]   --> src/c1_state_machine/p3_atm.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn keys_to_amount(_keys: &Vec<Key>) -> u64 {
[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: struct `DigitalCashSystem` is never constructed
[INFO] [stdout]   --> src/c1_state_machine/p5_digital_cash.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct DigitalCashSystem;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_serial` and `next_serial` are never used
[INFO] [stdout]   --> src/c1_state_machine/p5_digital_cash.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl State {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn set_serial(&mut self, serial: u64) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn next_serial(&self) -> 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: enum `DayOfWeek` is never used
[INFO] [stdout]  --> src/c1_state_machine/p6_open_ended.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum DayOfWeek {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_day_of_week` is never used
[INFO] [stdout]  --> src/c1_state_machine/p6_open_ended.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn get_day_of_week() -> DayOfWeek {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RationalUtilityMaximizer` is never constructed
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:15:2
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Identity {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] 15 |     RationalUtilityMaximizer,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Identity` 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 `BlockchainFromScratch` and `AssignmentTwo` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:20:2
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub enum Assignment {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] 20 |     BlockchainFromScratch,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 21 |     AssignmentTwo,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Assignment` 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 `Founder` and `Developer` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:26:2
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum Track {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 26 |     Founder,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 27 |     Developer,
[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 `Code`, `AttendEvent`, and `DayDream` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:32:2
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum Activity {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 32 |     Code { assignment: Assignment },
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 33 |     AttendEvent,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 34 |     DayDream { topic: String },
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Activity` 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: type alias `Hash` is never used
[INFO] [stdout]  --> src/c2_blockchain/p1_header_chain.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type Hash = u64;
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p1_header_chain.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct 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/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: type alias `Hash` is never used
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | type Hash = u64;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct 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: type alias `Hash` is never used
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | type Hash = u64;
[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: struct `Header` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct Header {
[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: type alias `Hash` is never used
[INFO] [stdout]  --> src/c2_blockchain/p4_batched_extrinsics.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Hash = u64;
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p4_batched_extrinsics.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct 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: struct `Block` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p4_batched_extrinsics.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct Block {
[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: constant `THRESHOLD` is never used
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const THRESHOLD: u64 = u64::max_value() / 100;
[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: type alias `Hash` is never used
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | type Hash = u64;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct State {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct 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: struct `Block` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub struct Block {
[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: type alias `Hash` is never used
[INFO] [stdout]   --> src/c3_consensus/mod.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 | type Hash = u64;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/c3_consensus/mod.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct Header<Digest> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Consensus` is never used
[INFO] [stdout]   --> src/c3_consensus/mod.rs:35:11
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub trait Consensus {
[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: struct `PoW` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct PoW {
[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: enum `PowOrPoaDigest` is never used
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:83:6
[INFO] [stdout]    |
[INFO] [stdout] 83 | enum PowOrPoaDigest {
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: blockchain-from-scratch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "2d1874f12b0697345b6a59b2e1d41098042868fa2b5ed3d05ddaa81e1fc73ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d1874f12b0697345b6a59b2e1d41098042868fa2b5ed3d05ddaa81e1fc73ede", kill_on_drop: false }`
[INFO] [stdout] 2d1874f12b0697345b6a59b2e1d41098042868fa2b5ed3d05ddaa81e1fc73ede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f8087b48c9217203aab688afbe3c434abf3b3d29c38c5c38f8d87393d8ba2ed
[INFO] running `Command { std: "docker" "start" "-a" "5f8087b48c9217203aab688afbe3c434abf3b3d29c38c5c38f8d87393d8ba2ed", kill_on_drop: false }`
[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` and `Header`
[INFO] [stdout]  --> src/c2_blockchain/mod.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use p6_rich_state::{Block, Header};
[INFO] [stdout]   |                         ^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn moderate_difficulty_pow() -> impl Consensus {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:35:37
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn moderate_difficulty_pow() -> impl Consensus {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | / fn change_authorities(
[INFO] [stdout] 48 | |     fork_height: u64,
[INFO] [stdout] 49 | |     initial_authorities: Vec<ConsensusAuthority>,
[INFO] [stdout] 50 | |     final_authorities: Vec<ConsensusAuthority>,
[INFO] [stdout] 51 | | ) -> impl Consensus {
[INFO] [stdout]    | |___________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 | ) -> impl Consensus {
[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: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:56:1
[INFO] [stdout]    |
[INFO] [stdout] 56 | / fn change_difficulty(
[INFO] [stdout] 57 | |     fork_height: u64,
[INFO] [stdout] 58 | |     initial_difficulty: u64,
[INFO] [stdout] 59 | |     final_difficulty: u64,
[INFO] [stdout] 60 | | ) -> impl Consensus {
[INFO] [stdout]    | |___________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 | ) -> impl Consensus {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[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: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:72:1
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn even_after_given_height<Original: Consensus>(fork_height: u64) -> impl Consensus {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:72:70
[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: 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: this function depends on never type fallback being `()`
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:104:1
[INFO] [stdout]     |
[INFO] [stdout] 104 | / fn pow_to_poa(
[INFO] [stdout] 105 | |     fork_height: u64,
[INFO] [stdout] 106 | |     difficulty: u64,
[INFO] [stdout] 107 | |     authorities: Vec<ConsensusAuthority>,
[INFO] [stdout] 108 | | ) -> impl Consensus {
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]     = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:108:6
[INFO] [stdout]     |
[INFO] [stdout] 108 | ) -> impl Consensus {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^
[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]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 58 |             Transition::DecideOnNextCourseOfAction => {
[INFO] [stdout]    |             -------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 68 |             Transition::Code => match get_day_of_week() {
[INFO] [stdout]    |             ---------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 81 |             Transition::DayDream => {
[INFO] [stdout]    |             -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 86 |             _ => {},
[INFO] [stdout]    |             ^ collectively making this unreachable
[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]    |                 ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 DayOfWeek::Wednesday => {
[INFO] [stdout]    |                 -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 73 |                 DayOfWeek::Thursday | DayOfWeek::Friday => {
[INFO] [stdout]    |                 --------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 76 |                 _ => {
[INFO] [stdout]    |                 ^ collectively making this unreachable
[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: function `hash` is never used
[INFO] [stdout]   --> src/lib.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn hash<T: Hash>(t: &T) -> u64 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[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] 
[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 `Clean`, `Dirty`, `Wet`, and `Tattered` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p2_laundry_machine.rs:15:2
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum ClothesState {
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] 14 |     /// Clean clothes ready to be worn. With some given life left.
[INFO] [stdout] 15 |     Clean(u64),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     /// Dirty clothes. With some given life left.
[INFO] [stdout] 17 |     Dirty(u64),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     Wet(u64),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     Tattered,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClothesState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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: variants `Waiting`, `Authenticating`, and `Authenticated` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p3_atm.rs:30:2
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum Auth {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 29 |     /// No session has begun yet. Waiting for the user to swipe their card
[INFO] [stdout] 30 |     Waiting,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     Authenticating(u64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     Authenticated,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Auth` 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: function `verify_pin` is never used
[INFO] [stdout]   --> src/c1_state_machine/p3_atm.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn verify_pin(_keys: &Vec<Key>, hash: u64) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `keys_to_amount` is never used
[INFO] [stdout]   --> src/c1_state_machine/p3_atm.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn keys_to_amount(_keys: &Vec<Key>) -> u64 {
[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] [stderr]    Compiling blockchain-from-scratch v0.1.0 (/opt/rustwide/workdir)
[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: struct `DigitalCashSystem` is never constructed
[INFO] [stdout]   --> src/c1_state_machine/p5_digital_cash.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct DigitalCashSystem;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_serial` and `next_serial` are never used
[INFO] [stdout]   --> src/c1_state_machine/p5_digital_cash.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl State {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn set_serial(&mut self, serial: u64) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn next_serial(&self) -> 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: enum `DayOfWeek` is never used
[INFO] [stdout]  --> src/c1_state_machine/p6_open_ended.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum DayOfWeek {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_day_of_week` is never used
[INFO] [stdout]  --> src/c1_state_machine/p6_open_ended.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn get_day_of_week() -> DayOfWeek {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RationalUtilityMaximizer` is never constructed
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:15:2
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Identity {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] 15 |     RationalUtilityMaximizer,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Identity` 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 `BlockchainFromScratch` and `AssignmentTwo` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:20:2
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub enum Assignment {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] 20 |     BlockchainFromScratch,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 21 |     AssignmentTwo,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Assignment` 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 `Founder` and `Developer` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:26:2
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum Track {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 26 |     Founder,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 27 |     Developer,
[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 `Code`, `AttendEvent`, and `DayDream` are never constructed
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:32:2
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum Activity {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 32 |     Code { assignment: Assignment },
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 33 |     AttendEvent,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 34 |     DayDream { topic: String },
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Activity` 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: type alias `Hash` is never used
[INFO] [stdout]  --> src/c2_blockchain/p1_header_chain.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type Hash = u64;
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p1_header_chain.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct 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/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: type alias `Hash` is never used
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | type Hash = u64;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p2_extrinsic_state.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct 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: type alias `Hash` is never used
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | type Hash = u64;
[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: struct `Header` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p3_consensus.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct Header {
[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: type alias `Hash` is never used
[INFO] [stdout]  --> src/c2_blockchain/p4_batched_extrinsics.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Hash = u64;
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p4_batched_extrinsics.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct 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: struct `Block` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p4_batched_extrinsics.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct Block {
[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: constant `THRESHOLD` is never used
[INFO] [stdout]   --> src/c2_blockchain/p5_fork_choice.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const THRESHOLD: u64 = u64::max_value() / 100;
[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: type alias `Hash` is never used
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | type Hash = u64;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct State {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct 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: struct `Block` is never constructed
[INFO] [stdout]   --> src/c2_blockchain/p6_rich_state.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub struct Block {
[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: type alias `Hash` is never used
[INFO] [stdout]   --> src/c3_consensus/mod.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 | type Hash = u64;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/c3_consensus/mod.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct Header<Digest> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Consensus` is never used
[INFO] [stdout]   --> src/c3_consensus/mod.rs:35:11
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub trait Consensus {
[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: struct `PoW` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct PoW {
[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: enum `PowOrPoaDigest` is never used
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:83:6
[INFO] [stdout]    |
[INFO] [stdout] 83 | enum PowOrPoaDigest {
[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: 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` and `Header`
[INFO] [stdout]  --> src/c2_blockchain/mod.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use p6_rich_state::{Block, Header};
[INFO] [stdout]   |                         ^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn moderate_difficulty_pow() -> impl Consensus {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:35:37
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn moderate_difficulty_pow() -> impl Consensus {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | / fn change_authorities(
[INFO] [stdout] 48 | |     fork_height: u64,
[INFO] [stdout] 49 | |     initial_authorities: Vec<ConsensusAuthority>,
[INFO] [stdout] 50 | |     final_authorities: Vec<ConsensusAuthority>,
[INFO] [stdout] 51 | | ) -> impl Consensus {
[INFO] [stdout]    | |___________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 | ) -> impl Consensus {
[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: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:56:1
[INFO] [stdout]    |
[INFO] [stdout] 56 | / fn change_difficulty(
[INFO] [stdout] 57 | |     fork_height: u64,
[INFO] [stdout] 58 | |     initial_difficulty: u64,
[INFO] [stdout] 59 | |     final_difficulty: u64,
[INFO] [stdout] 60 | | ) -> impl Consensus {
[INFO] [stdout]    | |___________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 | ) -> impl Consensus {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[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: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:72:1
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn even_after_given_height<Original: Consensus>(fork_height: u64) -> impl Consensus {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:72:70
[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: 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: this function depends on never type fallback being `()`
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:104:1
[INFO] [stdout]     |
[INFO] [stdout] 104 | / fn pow_to_poa(
[INFO] [stdout] 105 | |     fork_height: u64,
[INFO] [stdout] 106 | |     difficulty: u64,
[INFO] [stdout] 107 | |     authorities: Vec<ConsensusAuthority>,
[INFO] [stdout] 108 | | ) -> impl Consensus {
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]     = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stdout]    --> src/c3_consensus/p6_forking.rs:108:6
[INFO] [stdout]     |
[INFO] [stdout] 108 | ) -> impl Consensus {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^
[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]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 58 |             Transition::DecideOnNextCourseOfAction => {
[INFO] [stdout]    |             -------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 68 |             Transition::Code => match get_day_of_week() {
[INFO] [stdout]    |             ---------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 81 |             Transition::DayDream => {
[INFO] [stdout]    |             -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 86 |             _ => {},
[INFO] [stdout]    |             ^ collectively making this unreachable
[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]    |                 ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/c1_state_machine/p6_open_ended.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 DayOfWeek::Wednesday => {
[INFO] [stdout]    |                 -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 73 |                 DayOfWeek::Thursday | DayOfWeek::Friday => {
[INFO] [stdout]    |                 --------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 76 |                 _ => {
[INFO] [stdout]    |                 ^ collectively making this unreachable
[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: type alias `Hash` is never used
[INFO] [stdout]   --> src/c3_consensus/mod.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 | type Hash = u64;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/c3_consensus/mod.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct Header<Digest> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Consensus` is never used
[INFO] [stdout]   --> src/c3_consensus/mod.rs:35:11
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub trait Consensus {
[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: struct `PoW` is never constructed
[INFO] [stdout]   --> src/c3_consensus/p1_pow.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct PoW {
[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: enum `PowOrPoaDigest` is never used
[INFO] [stdout]   --> src/c3_consensus/p6_forking.rs:83:6
[INFO] [stdout]    |
[INFO] [stdout] 83 | enum PowOrPoaDigest {
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.79s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: blockchain-from-scratch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "5f8087b48c9217203aab688afbe3c434abf3b3d29c38c5c38f8d87393d8ba2ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f8087b48c9217203aab688afbe3c434abf3b3d29c38c5c38f8d87393d8ba2ed", kill_on_drop: false }`
[INFO] [stdout] 5f8087b48c9217203aab688afbe3c434abf3b3d29c38c5c38f8d87393d8ba2ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0b53fe4481192fe2b6d64911e1f6c2d484e366b947bf016fdee7eaae7cc25b84
[INFO] running `Command { std: "docker" "start" "-a" "0b53fe4481192fe2b6d64911e1f6c2d484e366b947bf016fdee7eaae7cc25b84", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/c1_state_machine/p1_switches.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 if (starting_state.first_switch) {
[INFO] [stderr]    |                    ^                           ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 48 -                 if (starting_state.first_switch) {
[INFO] [stderr] 48 +                 if starting_state.first_switch {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/c1_state_machine/p3_atm.rs:100:11
[INFO] [stderr]     |
[INFO] [stderr] 100 |                                 if(withdraw_amount <= new_state.cash_inside) {
[INFO] [stderr]     |                                   ^                                        ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 100 -                                 if(withdraw_amount <= new_state.cash_inside) {
[INFO] [stderr] 100 +                                 if withdraw_amount <= new_state.cash_inside {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Block` and `Header`
[INFO] [stderr]  --> src/c2_blockchain/mod.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub use p6_rich_state::{Block, Header};
[INFO] [stderr]   |                         ^^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread::current`
[INFO] [stderr]   --> src/c2_blockchain/p2_extrinsic_state.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::thread::current;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread::current`
[INFO] [stderr]  --> src/c2_blockchain/p4_batched_extrinsics.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::thread::current;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::hash::Hash`
[INFO] [stderr]   --> src/c2_blockchain/p5_fork_choice.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::hash::Hash;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this function depends on never type fallback being `()`
[INFO] [stderr]   --> src/c3_consensus/p1_pow.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn moderate_difficulty_pow() -> impl Consensus {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stderr]    = help: specify the types explicitly
[INFO] [stderr] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stderr]   --> src/c3_consensus/p1_pow.rs:35:37
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn moderate_difficulty_pow() -> impl Consensus {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^
[INFO] [stderr]    = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this function depends on never type fallback being `()`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:47:1
[INFO] [stderr]    |
[INFO] [stderr] 47 | / fn change_authorities(
[INFO] [stderr] 48 | |     fork_height: u64,
[INFO] [stderr] 49 | |     initial_authorities: Vec<ConsensusAuthority>,
[INFO] [stderr] 50 | |     final_authorities: Vec<ConsensusAuthority>,
[INFO] [stderr] 51 | | ) -> impl Consensus {
[INFO] [stderr]    | |___________________^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stderr]    = help: specify the types explicitly
[INFO] [stderr] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:51:6
[INFO] [stderr]    |
[INFO] [stderr] 51 | ) -> impl Consensus {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fork_height`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:48:2
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fork_height: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fork_height`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `initial_authorities`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:49:2
[INFO] [stderr]    |
[INFO] [stderr] 49 |     initial_authorities: Vec<ConsensusAuthority>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initial_authorities`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `final_authorities`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:50:2
[INFO] [stderr]    |
[INFO] [stderr] 50 |     final_authorities: Vec<ConsensusAuthority>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_final_authorities`
[INFO] [stderr] 
[INFO] [stderr] warning: this function depends on never type fallback being `()`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:56:1
[INFO] [stderr]    |
[INFO] [stderr] 56 | / fn change_difficulty(
[INFO] [stderr] 57 | |     fork_height: u64,
[INFO] [stderr] 58 | |     initial_difficulty: u64,
[INFO] [stderr] 59 | |     final_difficulty: u64,
[INFO] [stderr] 60 | | ) -> impl Consensus {
[INFO] [stderr]    | |___________________^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stderr]    = help: specify the types explicitly
[INFO] [stderr] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:60:6
[INFO] [stderr]    |
[INFO] [stderr] 60 | ) -> impl Consensus {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fork_height`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:57:2
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fork_height: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fork_height`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `initial_difficulty`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:58:2
[INFO] [stderr]    |
[INFO] [stderr] 58 |     initial_difficulty: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initial_difficulty`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `final_difficulty`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:59:2
[INFO] [stderr]    |
[INFO] [stderr] 59 |     final_difficulty: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_final_difficulty`
[INFO] [stderr] 
[INFO] [stderr] warning: this function depends on never type fallback being `()`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn even_after_given_height<Original: Consensus>(fork_height: u64) -> impl Consensus {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stderr]    = help: specify the types explicitly
[INFO] [stderr] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:72:70
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn even_after_given_height<Original: Consensus>(fork_height: u64) -> impl Consensus {
[INFO] [stderr]    |                                                                      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fork_height`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:72:49
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn even_after_given_height<Original: Consensus>(fork_height: u64) -> impl Consensus {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fork_height`
[INFO] [stderr] 
[INFO] [stderr] warning: this function depends on never type fallback being `()`
[INFO] [stderr]    --> src/c3_consensus/p6_forking.rs:104:1
[INFO] [stderr]     |
[INFO] [stderr] 104 | / fn pow_to_poa(
[INFO] [stderr] 105 | |     fork_height: u64,
[INFO] [stderr] 106 | |     difficulty: u64,
[INFO] [stderr] 107 | |     authorities: Vec<ConsensusAuthority>,
[INFO] [stderr] 108 | | ) -> impl Consensus {
[INFO] [stderr]     | |___________________^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stderr]     = help: specify the types explicitly
[INFO] [stderr] note: in edition 2024, the requirement `!: Consensus` will fail
[INFO] [stderr]    --> src/c3_consensus/p6_forking.rs:108:6
[INFO] [stderr]     |
[INFO] [stderr] 108 | ) -> impl Consensus {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fork_height`
[INFO] [stderr]    --> src/c3_consensus/p6_forking.rs:105:2
[INFO] [stderr]     |
[INFO] [stderr] 105 |     fork_height: u64,
[INFO] [stderr]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fork_height`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `difficulty`
[INFO] [stderr]    --> src/c3_consensus/p6_forking.rs:106:2
[INFO] [stderr]     |
[INFO] [stderr] 106 |     difficulty: u64,
[INFO] [stderr]     |     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_difficulty`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `authorities`
[INFO] [stderr]    --> src/c3_consensus/p6_forking.rs:107:2
[INFO] [stderr]     |
[INFO] [stderr] 107 |     authorities: Vec<ConsensusAuthority>,
[INFO] [stderr]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_authorities`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/c1_state_machine/p1_switches.rs:17:39
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn next_state(starting_state: &bool, t: &()) -> bool {
[INFO] [stderr]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pin`
[INFO] [stderr]    --> src/c1_state_machine/p3_atm.rs:112:29
[INFO] [stderr]     |
[INFO] [stderr] 112 |                             Auth::Authenticating(pin) => {
[INFO] [stderr]     |                                                  ^^^ help: if this is intentional, prefix it with an underscore: `_pin`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/c1_state_machine/p6_open_ended.rs:86:4
[INFO] [stderr]    |
[INFO] [stderr] 86 |             _ => {},
[INFO] [stderr]    |             ^ no value can reach this
[INFO] [stderr]    |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]   --> src/c1_state_machine/p6_open_ended.rs:86:4
[INFO] [stderr]    |
[INFO] [stderr] 58 |             Transition::DecideOnNextCourseOfAction => {
[INFO] [stderr]    |             -------------------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 68 |             Transition::Code => match get_day_of_week() {
[INFO] [stderr]    |             ---------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 81 |             Transition::DayDream => {
[INFO] [stderr]    |             -------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 86 |             _ => {},
[INFO] [stderr]    |             ^ collectively making this unreachable
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/c1_state_machine/p6_open_ended.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 _ => {
[INFO] [stderr]    |                 ^ no value can reach this
[INFO] [stderr]    |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]   --> src/c1_state_machine/p6_open_ended.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |                 DayOfWeek::Wednesday => {
[INFO] [stderr]    |                 -------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 73 |                 DayOfWeek::Thursday | DayOfWeek::Friday => {
[INFO] [stderr]    |                 --------------------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 76 |                 _ => {
[INFO] [stderr]    |                 ^ collectively making this unreachable
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/c2_blockchain/p2_extrinsic_state.rs:81:22
[INFO] [stderr]    |
[INFO] [stderr] 81 | fn build_valid_chain(n: u64) -> Vec<Header> {
[INFO] [stderr]    |                      ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/c2_blockchain/p3_consensus.rs:46:7
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut header = self;
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `extrinsic_sum`
[INFO] [stderr]    --> src/c2_blockchain/p6_rich_state.rs:118:7
[INFO] [stderr]     |
[INFO] [stderr] 118 |         let extrinsic_sum: u64 = extrinsics.iter().sum();
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extrinsic_sum`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/c2_blockchain/p6_rich_state.rs:169:6
[INFO] [stderr]     |
[INFO] [stderr] 169 |     let mut new_state = pre_state.clone();
[INFO] [stderr]     |         ----^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `header`
[INFO] [stderr]   --> src/c3_consensus/p1_pow.rs:21:39
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn validate(&self, _: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stderr]    |                                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `partial_header`
[INFO] [stderr]   --> src/c3_consensus/p1_pow.rs:27:35
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn seal(&self, _: &Self::Digest, partial_header: Header<()>) -> Option<Header<Self::Digest>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `header`
[INFO] [stderr]   --> src/c3_consensus/p2_dictator.rs:22:39
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn validate(&self, _: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stderr]    |                                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `partial_header`
[INFO] [stderr]   --> src/c3_consensus/p2_dictator.rs:27:35
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn seal(&self, _: &Self::Digest, partial_header: Header<()>) -> Option<Header<Self::Digest>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent_digest`
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:23:21
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `header`
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:23:51
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stderr]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent_digest`
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 |         parent_digest: &Self::Digest,
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `partial_header`
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:30:3
[INFO] [stderr]    |
[INFO] [stderr] 30 |         partial_header: Header<()>,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent_digest`
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:46:21
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `header`
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:46:51
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stderr]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent_digest`
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:52:3
[INFO] [stderr]    |
[INFO] [stderr] 52 |         parent_digest: &Self::Digest,
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `partial_header`
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:53:3
[INFO] [stderr]    |
[INFO] [stderr] 53 |         partial_header: Header<()>,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent_digest`
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:84:21
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `header`
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:84:51
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stderr]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent_digest`
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:90:3
[INFO] [stderr]    |
[INFO] [stderr] 90 |         parent_digest: &Self::Digest,
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `partial_header`
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:91:3
[INFO] [stderr]    |
[INFO] [stderr] 91 |         partial_header: Header<()>,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent_digest`
[INFO] [stderr]   --> src/c3_consensus/p4_even_only.rs:20:21
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `header`
[INFO] [stderr]   --> src/c3_consensus/p4_even_only.rs:20:51
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stderr]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent_digest`
[INFO] [stderr]   --> src/c3_consensus/p4_even_only.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |         parent_digest: &Self::Digest,
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `partial_header`
[INFO] [stderr]   --> src/c3_consensus/p4_even_only.rs:27:3
[INFO] [stderr]    |
[INFO] [stderr] 27 |         partial_header: Header<()>,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent_digest`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `header`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:31:51
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn validate(&self, parent_digest: &Self::Digest, header: &Header<Self::Digest>) -> bool {
[INFO] [stderr]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent_digest`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |         parent_digest: &Self::Digest,
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `partial_header`
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:38:3
[INFO] [stderr]    |
[INFO] [stderr] 38 |         partial_header: Header<()>,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent_digest`
[INFO] [stderr]   --> src/c3_consensus/mod.rs:74:3
[INFO] [stderr]    |
[INFO] [stderr] 74 |         parent_digest: &Self::Digest,
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_digest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `chain`
[INFO] [stderr]   --> src/c3_consensus/mod.rs:75:3
[INFO] [stderr]    |
[INFO] [stderr] 75 |         chain: &[Header<Self::Digest>],
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `partial_header`
[INFO] [stderr]   --> src/c3_consensus/mod.rs:99:35
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn seal(&self, _: &Self::Digest, partial_header: Header<()>) -> Option<Header<Self::Digest>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial_header`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `genesis_state_root`
[INFO] [stderr]   --> src/c4_framework/mod.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn genesis(genesis_state_root: Hash) -> Self {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_genesis_state_root`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `state_root`
[INFO] [stderr]   --> src/c4_framework/mod.rs:24:18
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn child(&self, state_root: Hash, extrinsics_root: Hash) -> Self {
[INFO] [stderr]    |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_state_root`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `extrinsics_root`
[INFO] [stderr]   --> src/c4_framework/mod.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn child(&self, state_root: Hash, extrinsics_root: Hash) -> Self {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extrinsics_root`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `child`
[INFO] [stderr]   --> src/c4_framework/mod.rs:29:25
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn verify_child(&self, child: &Self) -> bool {
[INFO] [stderr]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `chain`
[INFO] [stderr]   --> src/c4_framework/mod.rs:34:29
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn verify_sub_chain(&self, chain: &[Self]) -> bool {
[INFO] [stderr]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `genesis_state`
[INFO] [stderr]   --> src/c4_framework/mod.rs:46:17
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn genesis(genesis_state: &SM::State) -> Self {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_genesis_state`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pre_state`
[INFO] [stderr]   --> src/c4_framework/mod.rs:51:22
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn child(&self, pre_state: &SM::State, extrinsics: Vec<u8>) -> Self {
[INFO] [stderr]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre_state`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `extrinsics`
[INFO] [stderr]   --> src/c4_framework/mod.rs:51:45
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn child(&self, pre_state: &SM::State, extrinsics: Vec<u8>) -> Self {
[INFO] [stderr]    |                                                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extrinsics`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pre_state`
[INFO] [stderr]   --> src/c4_framework/mod.rs:56:33
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn verify_sub_chain(&self, pre_state: &SM::State, chain: &[Self]) -> bool {
[INFO] [stderr]    |                                    ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre_state`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `chain`
[INFO] [stderr]   --> src/c4_framework/mod.rs:56:56
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn verify_sub_chain(&self, pre_state: &SM::State, chain: &[Self]) -> bool {
[INFO] [stderr]    |                                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_chain`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/c4_framework/mod.rs:64:2
[INFO] [stderr]    |
[INFO] [stderr] 64 |     n: u64,
[INFO] [stderr]    |     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `genesis_state`
[INFO] [stderr]   --> src/c4_framework/mod.rs:65:2
[INFO] [stderr]    |
[INFO] [stderr] 65 |     genesis_state: &SM::State,
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_genesis_state`
[INFO] [stderr] 
[INFO] [stderr] warning: function `hash` is never used
[INFO] [stderr]   --> src/lib.rs:14:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn hash<T: Hash>(t: &T) -> u64 {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `next_state` and `human_name` are never used
[INFO] [stderr]   --> src/c1_state_machine/mod.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub trait StateMachine {
[INFO] [stderr]    |           ------------ associated functions in this trait
[INFO] [stderr] ...
[INFO] [stderr] 21 |     fn next_state(starting_state: &Self::State, t: &Self::Transition) -> Self::State;
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 26 |     fn human_name() -> String {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Alice`, `Bob`, and `Charlie` are never constructed
[INFO] [stderr]   --> src/c1_state_machine/mod.rs:34:2
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub enum User {
[INFO] [stderr]    |          ---- variants in this enum
[INFO] [stderr] 34 |     Alice,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 35 |     Bob,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 36 |     Charlie,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `User` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: struct `LightSwitch` is never constructed
[INFO] [stderr]  --> src/c1_state_machine/p1_switches.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct LightSwitch;
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `WeirdSwitchMachine` is never constructed
[INFO] [stderr]   --> src/c1_state_machine/p1_switches.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub struct WeirdSwitchMachine;
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `FirstSwitch` and `SecondSwitch` are never constructed
[INFO] [stderr]   --> src/c1_state_machine/p1_switches.rs:35:2
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub enum Toggle {
[INFO] [stderr]    |          ------ variants in this enum
[INFO] [stderr] 35 |     FirstSwitch,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 36 |     SecondSwitch,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ClothesMachine` is never constructed
[INFO] [stderr]  --> src/c1_state_machine/p2_laundry_machine.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct ClothesMachine;
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Clean`, `Dirty`, `Wet`, and `Tattered` are never constructed
[INFO] [stderr]   --> src/c1_state_machine/p2_laundry_machine.rs:15:2
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub enum ClothesState {
[INFO] [stderr]    |          ------------ variants in this enum
[INFO] [stderr] 14 |     /// Clean clothes ready to be worn. With some given life left.
[INFO] [stderr] 15 |     Clean(u64),
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 16 |     /// Dirty clothes. With some given life left.
[INFO] [stderr] 17 |     Dirty(u64),
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 20 |     Wet(u64),
[INFO] [stderr]    |     ^^^
[INFO] [stderr] ...
[INFO] [stderr] 23 |     Tattered,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ClothesState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Wear`, `Wash`, and `Dry` are never constructed
[INFO] [stderr]   --> src/c1_state_machine/p2_laundry_machine.rs:29:2
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub enum ClothesAction {
[INFO] [stderr]    |          ------------- variants in this enum
[INFO] [stderr] 28 |     /// Wearing clothes decreases their life by 1 and makes them dirty.
[INFO] [stderr] 29 |     Wear,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 30 |     /// Washing clothes decreases their life by 1, and makes them wet.
[INFO] [stderr] 31 |     Wash,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 35 |     Dry,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `One`, `Two`, `Three`, `Four`, and `Enter` are never constructed
[INFO] [stderr]   --> src/c1_state_machine/p3_atm.rs:10:2
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub enum Key {
[INFO] [stderr]    |          --- variants in this enum
[INFO] [stderr] 10 |     One,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 11 |     Two,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 12 |     Three,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 13 |     Four,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 14 |     Enter,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Key` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `SwipeCard` and `PressKey` are never constructed
[INFO] [stderr]   --> src/c1_state_machine/p3_atm.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub enum Action {
[INFO] [stderr]    |          ------ variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 21 |     SwipeCard(u64),
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 22 |     /// Press a key on the keypad
[INFO] [stderr] 23 |     PressKey(Key),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Waiting`, `Authenticating`, and `Authenticated` are never constructed
[INFO] [stderr]   --> src/c1_state_machine/p3_atm.rs:30:2
[INFO] [stderr]    |
[INFO] [stderr] 28 | enum Auth {
[INFO] [stderr]    |      ---- variants in this enum
[INFO] [stderr] 29 |     /// No session has begun yet. Waiting for the user to swipe their card
[INFO] [stderr] 30 |     Waiting,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 33 |     Authenticating(u64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 36 |     Authenticated,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Auth` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `verify_pin` is never used
[INFO] [stderr]   --> src/c1_state_machine/p3_atm.rs:55:4
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn verify_pin(_keys: &Vec<Key>, hash: u64) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `keys_to_amount` is never used
[INFO] [stderr]   --> src/c1_state_machine/p3_atm.rs:60:4
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn keys_to_amount(_keys: &Vec<Key>) -> u64 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `AccountedCurrency` is never constructed
[INFO] [stderr]   --> src/c1_state_machine/p4_accounted_currency.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct AccountedCurrency;
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Mint`, `Burn`, and `Transfer` are never constructed
[INFO] [stderr]   --> src/c1_state_machine/p4_accounted_currency.rs:29:2
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub enum AccountingTransaction {
[INFO] [stderr]    |          --------------------- variants in this enum
[INFO] [stderr] 28 |     /// Create some new money for the given minter in the given amount
[INFO] [stderr] 29 |     Mint { minter: User, amount: u64 },
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 33 |     Burn { burner: User, amount: u64 },
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 34 |     /// Send some tokens from one account to another
[INFO] [stderr] 35 |     Transfer { sender: User, receiver: User, amount: u64 },
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `DigitalCashSystem` is never constructed
[INFO] [stderr]   --> src/c1_state_machine/p5_digital_cash.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct DigitalCashSystem;
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `set_serial` and `next_serial` are never used
[INFO] [stderr]   --> src/c1_state_machine/p5_digital_cash.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 33 | impl State {
[INFO] [stderr]    | ---------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 38 |     pub fn set_serial(&mut self, serial: u64) {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 42 |     pub fn next_serial(&self) -> u64 {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Mint` and `Transfer` are never constructed
[INFO] [stderr]   --> src/c1_state_machine/p5_digital_cash.rs:76:2
[INFO] [stderr]    |
[INFO] [stderr] 74 | pub enum CashTransaction {
[INFO] [stderr]    |          --------------- variants in this enum
[INFO] [stderr] 75 |     /// Mint a single new bill owned by the minter
[INFO] [stderr] 76 |     Mint { minter: User, amount: u64 },
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 82 |     Transfer { spends: Vec<Bill>, receives: Vec<Bill> },
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `DayOfWeek` is never used
[INFO] [stderr]  --> src/c1_state_machine/p6_open_ended.rs:3:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum DayOfWeek {
[INFO] [stderr]   |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_day_of_week` is never used
[INFO] [stderr]  --> src/c1_state_machine/p6_open_ended.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn get_day_of_week() -> DayOfWeek {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `RationalUtilityMaximizer` is never constructed
[INFO] [stderr]   --> src/c1_state_machine/p6_open_ended.rs:15:2
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub enum Identity {
[INFO] [stderr]    |          -------- variant in this enum
[INFO] [stderr] 15 |     RationalUtilityMaximizer,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Identity` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `BlockchainFromScratch` and `AssignmentTwo` are never constructed
[INFO] [stderr]   --> src/c1_state_machine/p6_open_ended.rs:20:2
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub enum Assignment {
[INFO] [stderr]    |          ---------- variants in this enum
[INFO] [stderr] 20 |     BlockchainFromScratch,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 21 |     AssignmentTwo,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Assignment` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Founder` and `Developer` are never constructed
[INFO] [stderr]   --> src/c1_state_machine/p6_open_ended.rs:26:2
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub enum Track {
[INFO] [stderr]    |          ----- variants in this enum
[INFO] [stderr] 26 |     Founder,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 27 |     Developer,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Track` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Code`, `AttendEvent`, and `DayDream` are never constructed
[INFO] [stderr]   --> src/c1_state_machine/p6_open_ended.rs:32:2
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub enum Activity {
[INFO] [stderr]    |          -------- variants in this enum
[INFO] [stderr] 32 |     Code { assignment: Assignment },
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 33 |     AttendEvent,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 34 |     DayDream { topic: String },
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Activity` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `DecideOnNextCourseOfAction`, `Code`, and `DayDream` are never constructed
[INFO] [stderr]   --> src/c1_state_machine/p6_open_ended.rs:45:2
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub enum Transition {
[INFO] [stderr]    |          ---------- variants in this enum
[INFO] [stderr] 45 |     DecideOnNextCourseOfAction,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 46 |     Code,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 47 |     DayDream,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Hash` is never used
[INFO] [stderr]  --> src/c2_blockchain/p1_header_chain.rs:9:6
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Hash = u64;
[INFO] [stderr]   |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Header` is never constructed
[INFO] [stderr]   --> src/c2_blockchain/p1_header_chain.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct Header {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `genesis`, `child`, and `verify_sub_chain` are never used
[INFO] [stderr]   --> src/c2_blockchain/p1_header_chain.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | impl Header {
[INFO] [stderr]    | ----------- associated items in this implementation
[INFO] [stderr] 25 |     /// Returns a new valid genesis header.
[INFO] [stderr] 26 |     fn genesis() -> Self {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 |     fn child(&self) -> Self {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 45 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `build_valid_chain_length_5` is never used
[INFO] [stderr]   --> src/c2_blockchain/p1_header_chain.rs:63:4
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn build_valid_chain_length_5() -> Vec<Header> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `build_an_invalid_chain` is never used
[INFO] [stderr]   --> src/c2_blockchain/p1_header_chain.rs:81:4
[INFO] [stderr]    |
[INFO] [stderr] 81 | fn build_an_invalid_chain() -> Vec<Header> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Hash` is never used
[INFO] [stderr]   --> src/c2_blockchain/p2_extrinsic_state.rs:15:6
[INFO] [stderr]    |
[INFO] [stderr] 15 | type Hash = u64;
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Header` is never constructed
[INFO] [stderr]   --> src/c2_blockchain/p2_extrinsic_state.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct Header {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `genesis`, `child`, and `verify_sub_chain` are never used
[INFO] [stderr]   --> src/c2_blockchain/p2_extrinsic_state.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 32 | impl Header {
[INFO] [stderr]    | ----------- associated items in this implementation
[INFO] [stderr] 33 |     /// Returns a new valid genesis header.
[INFO] [stderr] 34 |     fn genesis() -> Self {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 42 |     fn child(&self, extrinsic: u64) -> Self {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 58 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `build_valid_chain` is never used
[INFO] [stderr]   --> src/c2_blockchain/p2_extrinsic_state.rs:81:4
[INFO] [stderr]    |
[INFO] [stderr] 81 | fn build_valid_chain(n: u64) -> Vec<Header> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `build_an_invalid_chain` is never used
[INFO] [stderr]    --> src/c2_blockchain/p2_extrinsic_state.rs:106:4
[INFO] [stderr]     |
[INFO] [stderr] 106 | fn build_an_invalid_chain() -> Vec<Header> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `build_forked_chain` is never used
[INFO] [stderr]    --> src/c2_blockchain/p2_extrinsic_state.rs:128:4
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn build_forked_chain() -> (Vec<Header>, Vec<Header>) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Hash` is never used
[INFO] [stderr]   --> src/c2_blockchain/p3_consensus.rs:12:6
[INFO] [stderr]    |
[INFO] [stderr] 12 | type Hash = u64;
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `THRESHOLD` is never used
[INFO] [stderr]   --> src/c2_blockchain/p3_consensus.rs:17:7
[INFO] [stderr]    |
[INFO] [stderr] 17 | const THRESHOLD: u64 = u64::max_value() / 100;
[INFO] [stderr]    |       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `FORK_HEIGHT` is never used
[INFO] [stderr]   --> src/c2_blockchain/p3_consensus.rs:21:7
[INFO] [stderr]    |
[INFO] [stderr] 21 | const FORK_HEIGHT: u64 = 2;
[INFO] [stderr]    |       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Header` is never constructed
[INFO] [stderr]   --> src/c2_blockchain/p3_consensus.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub struct Header {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `genesis`, `child`, `verify_sub_chain`, `verify_sub_chain_even`, and `verify_sub_chain_odd` are never used
[INFO] [stderr]    --> src/c2_blockchain/p3_consensus.rs:40:5
[INFO] [stderr]     |
[INFO] [stderr] 38  | impl Header {
[INFO] [stderr]     | ----------- associated items in this implementation
[INFO] [stderr] 39  |     /// Returns a new valid genesis header.
[INFO] [stderr] 40  |     fn genesis() -> Self {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 45  |     fn child(&self, extrinsic: u64) -> Self {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 66  |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 97  |     fn verify_sub_chain_even(&self, chain: &[Header]) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 128 |     fn verify_sub_chain_odd(&self, chain: &[Header]) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `build_contentious_forked_chain` is never used
[INFO] [stderr]    --> src/c2_blockchain/p3_consensus.rs:174:4
[INFO] [stderr]     |
[INFO] [stderr] 174 | fn build_contentious_forked_chain() -> (Vec<Header>, Vec<Header>, Vec<Header>) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Hash` is never used
[INFO] [stderr]  --> src/c2_blockchain/p4_batched_extrinsics.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 | type Hash = u64;
[INFO] [stderr]   |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Header` is never constructed
[INFO] [stderr]   --> src/c2_blockchain/p4_batched_extrinsics.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct Header {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `genesis`, `child`, `verify_child`, and `verify_sub_chain` are never used
[INFO] [stderr]   --> src/c2_blockchain/p4_batched_extrinsics.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 29 | impl Header {
[INFO] [stderr]    | ----------- associated items in this implementation
[INFO] [stderr] 30 |     /// Returns a new valid genesis header.
[INFO] [stderr] 31 |     pub fn genesis() -> Self {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 38 |     pub fn child(&self, extrinsics_root: Hash, state: u64) -> Self {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 55 |     fn verify_child(&self, child: &Header) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 66 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Block` is never constructed
[INFO] [stderr]   --> src/c2_blockchain/p4_batched_extrinsics.rs:77:12
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub struct Block {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `genesis`, `child`, and `verify_sub_chain` are never used
[INFO] [stderr]    --> src/c2_blockchain/p4_batched_extrinsics.rs:89:9
[INFO] [stderr]     |
[INFO] [stderr] 87  | impl Block {
[INFO] [stderr]     | ---------- associated items in this implementation
[INFO] [stderr] 88  |     /// Returns a new valid genesis block. By convention this block has no extrinsics.
[INFO] [stderr] 89  |     pub fn genesis() -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 97  |     pub fn child(&self, extrinsics: Vec<u64>) -> Self {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 108 |     pub fn verify_sub_chain(&self, chain: &[Block]) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `build_invalid_child_block_with_valid_header` is never used
[INFO] [stderr]    --> src/c2_blockchain/p4_batched_extrinsics.rs:133:4
[INFO] [stderr]     |
[INFO] [stderr] 133 | fn build_invalid_child_block_with_valid_header(parent: &Header) -> Block {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `THRESHOLD` is never used
[INFO] [stderr]   --> src/c2_blockchain/p5_fork_choice.rs:14:7
[INFO] [stderr]    |
[INFO] [stderr] 14 | const THRESHOLD: u64 = u64::max_value() / 100;
[INFO] [stderr]    |       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `ForkChoice` is never used
[INFO] [stderr]   --> src/c2_blockchain/p5_fork_choice.rs:19:11
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub trait ForkChoice {
[INFO] [stderr]    |           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `LongestChainRule` is never constructed
[INFO] [stderr]   --> src/c2_blockchain/p5_fork_choice.rs:48:12
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub struct LongestChainRule;
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `HeaviestChainRule` is never constructed
[INFO] [stderr]   --> src/c2_blockchain/p5_fork_choice.rs:64:12
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub struct HeaviestChainRule;
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `mine_extra_hard` is never used
[INFO] [stderr]   --> src/c2_blockchain/p5_fork_choice.rs:70:4
[INFO] [stderr]    |
[INFO] [stderr] 70 | fn mine_extra_hard(block: &mut Block, threshold: u64) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MostBlocksWithEvenHash` is never constructed
[INFO] [stderr]    --> src/c2_blockchain/p5_fork_choice.rs:107:12
[INFO] [stderr]     |
[INFO] [stderr] 107 | pub struct MostBlocksWithEvenHash;
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_fork_one_side_longer_other_side_heavier` is never used
[INFO] [stderr]    --> src/c2_blockchain/p5_fork_choice.rs:139:4
[INFO] [stderr]     |
[INFO] [stderr] 139 | fn create_fork_one_side_longer_other_side_heavier() -> (Vec<Header>, Vec<Header>, Vec<Header>) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Hash` is never used
[INFO] [stderr]   --> src/c2_blockchain/p6_rich_state.rs:16:6
[INFO] [stderr]    |
[INFO] [stderr] 16 | type Hash = u64;
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `State` is never constructed
[INFO] [stderr]   --> src/c2_blockchain/p6_rich_state.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub struct State {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Header` is never constructed
[INFO] [stderr]   --> src/c2_blockchain/p6_rich_state.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub struct Header {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `genesis`, `child`, `verify_child`, and `verify_sub_chain` are never used
[INFO] [stderr]   --> src/c2_blockchain/p6_rich_state.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | impl Header {
[INFO] [stderr]    | ----------- associated items in this implementation
[INFO] [stderr] 50 |     /// Returns a new valid genesis header.
[INFO] [stderr] 51 |     fn genesis(genesis_state_root: Hash) -> Self {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 65 |     fn child(&self, extrinsics_root: Hash, state_root: Hash) -> Self {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 76 |     fn verify_child(&self, child: &Header) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 81 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Block` is never constructed
[INFO] [stderr]   --> src/c2_blockchain/p6_rich_state.rs:92:12
[INFO] [stderr]    |
[INFO] [stderr] 92 | pub struct Block {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `genesis`, `child`, and `verify_sub_chain` are never used
[INFO] [stderr]    --> src/c2_blockchain/p6_rich_state.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 107 | impl Block {
[INFO] [stderr]     | ---------- associated items in this implementation
[INFO] [stderr] 108 |     /// Returns a new valid genesis block. By convention this block has no extrinsics.
[INFO] [stderr] 109 |     pub fn genesis(genesis_state: &State) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 116 |     pub fn child(&self, pre_state: &State, extrinsics: Vec<u64>) -> Self {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 136 |     pub fn verify_sub_chain(&self, pre_state: &State, chain: &[Block]) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `build_invalid_child_block_with_valid_header` is never used
[INFO] [stderr]    --> src/c2_blockchain/p6_rich_state.rs:164:4
[INFO] [stderr]     |
[INFO] [stderr] 164 | fn build_invalid_child_block_with_valid_header(parent: &Header, pre_state: &State) -> Block {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Hash` is never used
[INFO] [stderr]   --> src/c3_consensus/mod.rs:13:6
[INFO] [stderr]    |
[INFO] [stderr] 13 | type Hash = u64;
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Header` is never constructed
[INFO] [stderr]   --> src/c3_consensus/mod.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub struct Header<Digest> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Consensus` is never used
[INFO] [stderr]   --> src/c3_consensus/mod.rs:35:11
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub trait Consensus {
[INFO] [stderr]    |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Alice`, `Bob`, and `Charlie` are never constructed
[INFO] [stderr]    --> src/c3_consensus/mod.rs:108:2
[INFO] [stderr]     |
[INFO] [stderr] 107 | pub enum ConsensusAuthority {
[INFO] [stderr]     |          ------------------ variants in this enum
[INFO] [stderr] 108 |     Alice,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 109 |     Bob,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 110 |     Charlie,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `ConsensusAuthority` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: struct `PoW` is never constructed
[INFO] [stderr]   --> src/c3_consensus/p1_pow.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct PoW {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `moderate_difficulty_pow` is never used
[INFO] [stderr]   --> src/c3_consensus/p1_pow.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn moderate_difficulty_pow() -> impl Consensus {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `DictatorConsensus` is never constructed
[INFO] [stderr]   --> src/c3_consensus/p2_dictator.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | struct DictatorConsensus {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `SimplePoa` is never constructed
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | struct SimplePoa {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `PoaRoundRobinByHeight` is never constructed
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:39:8
[INFO] [stderr]    |
[INFO] [stderr] 39 | struct PoaRoundRobinByHeight {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `PoaRoundRobinBySlot` is never constructed
[INFO] [stderr]   --> src/c3_consensus/p3_poa.rs:68:8
[INFO] [stderr]    |
[INFO] [stderr] 68 | struct PoaRoundRobinBySlot {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `EvenOnly` is never constructed
[INFO] [stderr]   --> src/c3_consensus/p4_even_only.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | struct EvenOnly<Inner: Consensus>(PhantomData<Inner>);
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `almost_valid_but_not_all_even` is never used
[INFO] [stderr]   --> src/c3_consensus/p4_even_only.rs:36:4
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn almost_valid_but_not_all_even() -> Vec<Header<u64>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `AlternatingPowPoa` is never constructed
[INFO] [stderr]  --> src/c3_consensus/p5_interleave.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct AlternatingPowPoa;
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Forked` is never constructed
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | struct Forked<D, Before, After> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `change_authorities` is never used
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn change_authorities(
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `change_difficulty` is never used
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:56:4
[INFO] [stderr]    |
[INFO] [stderr] 56 | fn change_difficulty(
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `even_after_given_height` is never used
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:72:4
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn even_after_given_height<Original: Consensus>(fork_height: u64) -> impl Consensus {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `PowOrPoaDigest` is never used
[INFO] [stderr]   --> src/c3_consensus/p6_forking.rs:83:6
[INFO] [stderr]    |
[INFO] [stderr] 83 | enum PowOrPoaDigest {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `pow_to_poa` is never used
[INFO] [stderr]    --> src/c3_consensus/p6_forking.rs:104:4
[INFO] [stderr]     |
[INFO] [stderr] 104 | fn pow_to_poa(
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Hash` is never used
[INFO] [stderr]   --> src/c4_framework/mod.rs:15:6
[INFO] [stderr]    |
[INFO] [stderr] 15 | type Hash = u64;
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `genesis`, `child`, `verify_child`, and `verify_sub_chain` are never used
[INFO] [stderr]   --> src/c4_framework/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl<Digest> Header<Digest> {
[INFO] [stderr]    | --------------------------- associated items in this implementation
[INFO] [stderr] 18 |     /// Returns a new valid genesis header.
[INFO] [stderr] 19 |     fn genesis(genesis_state_root: Hash) -> Self {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 24 |     fn child(&self, state_root: Hash, extrinsics_root: Hash) -> Self {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 29 |     fn verify_child(&self, child: &Self) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 34 |     fn verify_sub_chain(&self, chain: &[Self]) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Block` is never constructed
[INFO] [stderr]   --> src/c4_framework/mod.rs:39:8
[INFO] [stderr]    |
[INFO] [stderr] 39 | struct Block<C: Consensus, SM: StateMachine> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `genesis`, `child`, and `verify_sub_chain` are never used
[INFO] [stderr]   --> src/c4_framework/mod.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 44 | impl<C: Consensus, SM: StateMachine> Block<C, SM> {
[INFO] [stderr]    | ------------------------------------------------- associated items in this implementation
[INFO] [stderr] 45 |     /// Returns a new valid genesis block. By convention this block has no extrinsics.
[INFO] [stderr] 46 |     pub fn genesis(genesis_state: &SM::State) -> Self {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 51 |     pub fn child(&self, pre_state: &SM::State, extrinsics: Vec<u8>) -> Self {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 56 |     pub fn verify_sub_chain(&self, pre_state: &SM::State, chain: &[Self]) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_empty_chain` is never used
[INFO] [stderr]   --> src/c4_framework/mod.rs:63:4
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn create_empty_chain<C: Consensus, SM: StateMachine>(
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `blockchain-from-scratch` (lib) generated 155 warnings (run `cargo fix --lib -p blockchain-from-scratch` to apply 8 suggestions)
[INFO] [stderr] warning: associated function `human_name` is never used
[INFO] [stderr]   --> src/c1_state_machine/mod.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub trait StateMachine {
[INFO] [stderr]    |           ------------ associated function in this trait
[INFO] [stderr] ...
[INFO] [stderr] 26 |     fn human_name() -> String {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Thursday` and `Friday` are never constructed
[INFO] [stderr]  --> src/c1_state_machine/p6_open_ended.rs:4:2
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum DayOfWeek {
[INFO] [stderr]   |      --------- variants in this enum
[INFO] [stderr] 4 |     Thursday,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 5 |     Wednesday,
[INFO] [stderr] 6 |     Friday,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Founder` is never constructed
[INFO] [stderr]   --> src/c1_state_machine/p6_open_ended.rs:26:2
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub enum Track {
[INFO] [stderr]    |          ----- variant in this enum
[INFO] [stderr] 26 |     Founder,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Track` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `verify_sub_chain` is never used
[INFO] [stderr]   --> src/c2_blockchain/p4_batched_extrinsics.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | impl Header {
[INFO] [stderr]    | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 66 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `verify_sub_chain` is never used
[INFO] [stderr]   --> src/c2_blockchain/p6_rich_state.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | impl Header {
[INFO] [stderr]    | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 81 |     fn verify_sub_chain(&self, chain: &[Header]) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `blockchain-from-scratch` (lib test) generated 101 warnings (96 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: blockchain-from-scratch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/blockchain_from_scratch-c9b10e543833a835)
[INFO] [stdout] 
[INFO] [stdout] running 141 tests
[INFO] [stdout] test c1_state_machine::p1_switches::sm_1_light_switch_toggles_off ... ok
[INFO] [stdout] test c1_state_machine::p1_switches::sm_1_light_switch_toggles_on ... ok
[INFO] [stdout] test c1_state_machine::p1_switches::sm_1_two_switches_first_goes_off_second_was_off ... ok
[INFO] [stdout] test c1_state_machine::p1_switches::sm_1_two_switches_first_goes_off_second_was_on ... ok
[INFO] [stdout] test c1_state_machine::p1_switches::sm_1_two_switches_first_goes_on ... ok
[INFO] [stdout] test c1_state_machine::p1_switches::sm_1_two_switches_second_goes_on ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_dry_clean_clothes ... ok
[INFO] [stdout] test c1_state_machine::p1_switches::sm_1_two_switches_second_goes_off ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_dry_clean_until_tattered ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_dry_cwet_until_tattered ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_dry_dirty_clothes ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_dry_dirty_until_tattered ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_dry_tattered_clothes ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_dry_wet_clothes ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wash_clean_clothes ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wash_dirty_clothes ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wash_dirty_until_tattered ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wash_clean_until_tattered ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wash_tattered_clothes ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wear_dirty_clothes ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wear_clean_clothes ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wash_wet_until_tattered ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wash_wet_clothes ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wear_dirty_until_tattered ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wear_tattered_clothes ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wear_clean_until_tattered ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wear_wet_until_tattered ... ok
[INFO] [stdout] test c1_state_machine::p2_laundry_machine::sm_2_wear_wet_clothes ... ok
[INFO] [stdout] test c1_state_machine::p3_atm::sm_3_enter_correct_pin ... ok
[INFO] [stdout] test c1_state_machine::p3_atm::sm_3_enter_single_digit_of_pin ... ok
[INFO] [stdout] test c1_state_machine::p3_atm::sm_3_enter_single_digit_of_withdraw_amount ... ok
[INFO] [stdout] test c1_state_machine::p3_atm::sm_3_enter_wrong_pin ... ok
[INFO] [stdout] test c1_state_machine::p3_atm::sm_3_press_key_before_card_swipe ... ok
[INFO] [stdout] test c1_state_machine::p3_atm::sm_3_simple_swipe_card ... ok
[INFO] [stdout] test c1_state_machine::p3_atm::sm_3_withdraw_acceptable_amount ... ok
[INFO] [stdout] test c1_state_machine::p3_atm::sm_3_swipe_card_again_part_way_through ... ok
[INFO] [stdout] test c1_state_machine::p3_atm::sm_3_try_to_withdraw_too_much ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_burn_more_than_balance ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_burner_does_not_exist ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_empty_burn ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_burn_no_existential_deposit_left ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_empty_mint ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_insufficient_balance_transfer ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_mint_creates_account ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_mint_creates_second_account ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_mint_increases_balance ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_non_registered_burner ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_receiver_not_registered ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_send_to_same_user ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_sender_not_registered ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_sender_to_empty_balance ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_simple_transfer ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_simple_burn ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_empty_spend_fails ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_mint_new_cash ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_output_value_0_fails ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_empty_receive_fails ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_receiving_bill_with_incorrect_serial_fails ... ok
[INFO] [stdout] test c1_state_machine::p4_accounted_currency::sm_4_transfer ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_overflow_receives_fails ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_spending_from_bob_to_all ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_serial_number_already_seen_fails ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_spending_and_receiving_same_bill_fails ... ok
[INFO] [stdout] test c2_blockchain::p1_header_chain::bc_1_cant_verify_invalid_height ... ok
[INFO] [stdout] test c2_blockchain::p1_header_chain::bc_1_cant_verify_invalid_parent ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_spending_from_alice_to_all ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_spending_more_than_bill_fails ... ok
[INFO] [stdout] test c2_blockchain::p1_header_chain::bc_1_child_block_parent ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_spending_non_existent_bill_fails ... ok
[INFO] [stdout] test c2_blockchain::p1_header_chain::bc_1_genesis_block_parent ... ok
[INFO] [stdout] test c2_blockchain::p1_header_chain::bc_1_invalid_chain_is_really_invalid ... ok
[INFO] [stdout] test c2_blockchain::p1_header_chain::bc_1_verify_chain_length_five ... ok
[INFO] [stdout] test c2_blockchain::p1_header_chain::bc_1_child_block_height ... ok
[INFO] [stdout] test c2_blockchain::p1_header_chain::bc_1_verify_genesis_only ... ok
[INFO] [stdout] test c2_blockchain::p1_header_chain::bc_1_verify_three_blocks ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_cant_verify_invalid_number ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_spending_from_charlie_to_all ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_spending_bill_with_incorrect_amount_fails ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_cant_verify_invalid_state ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_child_block_parent ... ok
[INFO] [stdout] test c2_blockchain::p1_header_chain::bc_1_genesis_block_height ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_child_block_state ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_genesis_block_extrinsic ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_cant_verify_invalid_parent ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_genesis_block_height ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_verify_forked_chain ... ok
[INFO] [stdout] test c1_state_machine::p5_digital_cash::sm_5_spending_same_bill_fails ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_cant_verify_invalid_number ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_genesis_block_parent ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_cant_verify_invalid_pow ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_genesis_block_state ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_child_block_consensus_digest ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_verify_genesis_only ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_child_block_extrinsic ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_verify_three_blocks ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_child_block_height ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_child_block_extrinsic ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_cant_verify_invalid_state ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_child_block_parent ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_cant_verify_invalid_parent ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_genesis_block_extrinsic ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_even_chain_valid ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_even_chain_invalid_first_block_after_fork ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_genesis_block_height ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_child_block_state ... ok
[INFO] [stdout] test c2_blockchain::p2_extrinsic_state::bc_2_child_block_height ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_genesis_block_state ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_even_chain_invalid_second_block_after_fork ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_genesis_block_parent ... ok
[INFO] [stdout] test c2_blockchain::p4_batched_extrinsics::bc_4_child_block_empty ... ok
[INFO] [stdout] test c2_blockchain::p4_batched_extrinsics::bc_4_genesis_block ... ok
[INFO] [stdout] test c2_blockchain::p4_batched_extrinsics::bc_4_genesis_header ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_genesis_consensus_digest ... ok
[INFO] [stdout] test c2_blockchain::p4_batched_extrinsics::bc_4_invalid_header_does_not_check ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_verify_forked_chain ... ok
[INFO] [stdout] test c2_blockchain::p4_batched_extrinsics::bc_4_invalid_block_state_does_not_check ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_odd_chain_valid ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_verify_genesis_only ... ok
[INFO] [stdout] test c2_blockchain::p4_batched_extrinsics::bc_4_student_invalid_block_really_is_invalid ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_verify_three_blocks ... ok
[INFO] [stdout] test c2_blockchain::p4_batched_extrinsics::bc_4_block_with_invalid_header_does_not_check ... ok
[INFO] [stdout] test c2_blockchain::p4_batched_extrinsics::bc_4_verify_three_blocks ... ok
[INFO] [stdout] test c2_blockchain::p4_batched_extrinsics::bc_4_child_header ... ok
[INFO] [stdout] test c2_blockchain::p5_fork_choice::bc_5_longest_chain ... ok
[INFO] [stdout] test c2_blockchain::p4_batched_extrinsics::bc_4_child_block ... ok
[INFO] [stdout] test c2_blockchain::p5_fork_choice::bc_5_heaviest_chain ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_odd_chain_invalid_second_block_after_fork ... ok
[INFO] [stdout] test c2_blockchain::p6_rich_state::bc_6_child_block ... ok
[INFO] [stdout] test c2_blockchain::p6_rich_state::bc_6_child_block_empty ... ok
[INFO] [stdout] test c2_blockchain::p3_consensus::bc_3_odd_chain_invalid_first_block_after_fork ... ok
[INFO] [stdout] test c2_blockchain::p5_fork_choice::bc_5_most_even_blocks ... ok
[INFO] [stdout] test c2_blockchain::p6_rich_state::bc_6_genesis_block ... ok
[INFO] [stdout] test c2_blockchain::p5_fork_choice::bc_5_longest_vs_heaviest ... ok
[INFO] [stdout] test c2_blockchain::p6_rich_state::bc_6_child_header ... ok
[INFO] [stdout] test c2_blockchain::p6_rich_state::bc_6_block_with_invalid_header_doesnt_check ... ok
[INFO] [stdout] test c2_blockchain::p6_rich_state::bc_6_genesis_header ... ok
[INFO] [stdout] test c2_blockchain::p6_rich_state::bc_6_invalid_block_state_doesnt_check ... ok
[INFO] [stdout] test c2_blockchain::p6_rich_state::bc_6_invalid_header_doesnt_check ... ok
[INFO] [stdout] test c2_blockchain::p6_rich_state::bc_6_student_invalid_block_really_is_invalid ... ok
[INFO] [stdout] test c2_blockchain::p6_rich_state::bc_6_verify_three_blocks ... ok
[INFO] [stdout] test c2_blockchain::p5_fork_choice::bc_5_mine_to_custom_difficulty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 141 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests blockchain_from_scratch
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/c1_state_machine/p1_switches.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 if (starting_state.first_switch) {
[INFO] [stderr]    |                    ^                           ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 48 -                 if (starting_state.first_switch) {
[INFO] [stderr] 48 +                 if starting_state.first_switch {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/c1_state_machine/p3_atm.rs:100:11
[INFO] [stderr]     |
[INFO] [stderr] 100 |                                 if(withdraw_amount <= new_state.cash_inside) {
[INFO] [stderr]     |                                   ^                                        ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 100 -                                 if(withdraw_amount <= new_state.cash_inside) {
[INFO] [stderr] 100 +                                 if withdraw_amount <= new_state.cash_inside {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0b53fe4481192fe2b6d64911e1f6c2d484e366b947bf016fdee7eaae7cc25b84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b53fe4481192fe2b6d64911e1f6c2d484e366b947bf016fdee7eaae7cc25b84", kill_on_drop: false }`
[INFO] [stdout] 0b53fe4481192fe2b6d64911e1f6c2d484e366b947bf016fdee7eaae7cc25b84