[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 1.100.0-beta.1 for beta-1.100-4 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphiloniare%2Fblockchain-from-scratch" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-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-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/philoniare/blockchain-from-scratch on toolchain 1.100.0-beta.1 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/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" "+1.100.0-beta.1" "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-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }` [INFO] [stdout] b339ba01ee0ffd4dea93e4a5d64663ca9e78bb35b7f9653bb56b40a78dc78ea5 [INFO] running `Command { std: "docker" "start" "b339ba01ee0ffd4dea93e4a5d64663ca9e78bb35b7f9653bb56b40a78dc78ea5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b339ba01ee0ffd4dea93e4a5d64663ca9e78bb35b7f9653bb56b40a78dc78ea5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b339ba01ee0ffd4dea93e4a5d64663ca9e78bb35b7f9653bb56b40a78dc78ea5" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b339ba01ee0ffd4dea93e4a5d64663ca9e78bb35b7f9653bb56b40a78dc78ea5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b339ba01ee0ffd4dea93e4a5d64663ca9e78bb35b7f9653bb56b40a78dc78ea5" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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] error[E0277]: the trait bound `!: Consensus` is not satisfied [INFO] [stdout] --> src/c3_consensus/p1_pow.rs:35:37 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn moderate_difficulty_pow() -> impl Consensus { [INFO] [stdout] | ^^^^^^^^^^^^^^ the trait `Consensus` is not implemented for `!` [INFO] [stdout] 36 | todo!("Exercise 3") [INFO] [stdout] | ------------------- return type was inferred to be `!` here [INFO] [stdout] | [INFO] [stdout] help: the following other types implement trait `Consensus` [INFO] [stdout] --> src/c3_consensus/mod.rs:90:1 [INFO] [stdout] | [INFO] [stdout] 90 | impl Consensus for () { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ `()` [INFO] [stdout] | [INFO] [stdout] ::: src/c3_consensus/p1_pow.rs:16:1 [INFO] [stdout] | [INFO] [stdout] 16 | impl Consensus for PoW { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ `PoW` [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 for more information) [INFO] [stdout] = help: you might have intended to use the type `()` here instead [INFO] [stdout] help: `!` can be coerced to any type; consider casting it to a concrete type that implements the trait [INFO] [stdout] | [INFO] [stdout] 36 | todo!("Exercise 3") as /* Type */ [INFO] [stdout] | +++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `!: Consensus` is not satisfied [INFO] [stdout] --> src/c3_consensus/p6_forking.rs:51:6 [INFO] [stdout] | [INFO] [stdout] 51 | ) -> impl Consensus { [INFO] [stdout] | ^^^^^^^^^^^^^^ the trait `Consensus` is not implemented for `!` [INFO] [stdout] 52 | todo!("Exercise 3") [INFO] [stdout] | ------------------- return type was inferred to be `!` here [INFO] [stdout] | [INFO] [stdout] help: the following other types implement trait `Consensus` [INFO] [stdout] --> src/c3_consensus/mod.rs:90:1 [INFO] [stdout] | [INFO] [stdout] 90 | impl Consensus for () { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ `()` [INFO] [stdout] | [INFO] [stdout] ::: src/c3_consensus/p6_forking.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / impl Consensus for Forked [INFO] [stdout] 22 | | where [INFO] [stdout] 23 | | D: Clone + core::fmt::Debug + Eq + PartialEq + std::hash::Hash, [INFO] [stdout] 24 | | B: Consensus, [INFO] [stdout] 25 | | A: Consensus, [INFO] [stdout] 26 | | B::Digest: Into, [INFO] [stdout] 27 | | A::Digest: Into, [INFO] [stdout] | |_______________________^ `Forked` [INFO] [stdout] | [INFO] [stdout] ::: src/c3_consensus/p1_pow.rs:16:1 [INFO] [stdout] | [INFO] [stdout] 16 | impl Consensus for PoW { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ `PoW` [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 for more information) [INFO] [stdout] = help: you might have intended to use the type `()` here instead [INFO] [stdout] help: `!` can be coerced to any type; consider casting it to a concrete type that implements the trait [INFO] [stdout] | [INFO] [stdout] 52 | todo!("Exercise 3") as /* Type */ [INFO] [stdout] | +++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `!: Consensus` is not satisfied [INFO] [stdout] --> src/c3_consensus/p6_forking.rs:60:6 [INFO] [stdout] | [INFO] [stdout] 60 | ) -> impl Consensus { [INFO] [stdout] | ^^^^^^^^^^^^^^ the trait `Consensus` is not implemented for `!` [INFO] [stdout] 61 | todo!("Exercise 4") [INFO] [stdout] | ------------------- return type was inferred to be `!` here [INFO] [stdout] | [INFO] [stdout] help: the following other types implement trait `Consensus` [INFO] [stdout] --> src/c3_consensus/mod.rs:90:1 [INFO] [stdout] | [INFO] [stdout] 90 | impl Consensus for () { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ `()` [INFO] [stdout] | [INFO] [stdout] ::: src/c3_consensus/p6_forking.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / impl Consensus for Forked [INFO] [stdout] 22 | | where [INFO] [stdout] 23 | | D: Clone + core::fmt::Debug + Eq + PartialEq + std::hash::Hash, [INFO] [stdout] 24 | | B: Consensus, [INFO] [stdout] 25 | | A: Consensus, [INFO] [stdout] 26 | | B::Digest: Into, [INFO] [stdout] 27 | | A::Digest: Into, [INFO] [stdout] | |_______________________^ `Forked` [INFO] [stdout] | [INFO] [stdout] ::: src/c3_consensus/p1_pow.rs:16:1 [INFO] [stdout] | [INFO] [stdout] 16 | impl Consensus for PoW { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ `PoW` [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 for more information) [INFO] [stdout] = help: you might have intended to use the type `()` here instead [INFO] [stdout] help: `!` can be coerced to any type; consider casting it to a concrete type that implements the trait [INFO] [stdout] | [INFO] [stdout] 61 | todo!("Exercise 4") as /* Type */ [INFO] [stdout] | +++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `!: Consensus` is not satisfied [INFO] [stdout] --> src/c3_consensus/p6_forking.rs:72:70 [INFO] [stdout] | [INFO] [stdout] 72 | fn even_after_given_height(fork_height: u64) -> impl Consensus { [INFO] [stdout] | ^^^^^^^^^^^^^^ the trait `Consensus` is not implemented for `!` [INFO] [stdout] 73 | todo!("Exercise 5") [INFO] [stdout] | ------------------- return type was inferred to be `!` here [INFO] [stdout] | [INFO] [stdout] help: the following other types implement trait `Consensus` [INFO] [stdout] --> src/c3_consensus/mod.rs:90:1 [INFO] [stdout] | [INFO] [stdout] 90 | impl Consensus for () { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ `()` [INFO] [stdout] | [INFO] [stdout] ::: src/c3_consensus/p6_forking.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / impl Consensus for Forked [INFO] [stdout] 22 | | where [INFO] [stdout] 23 | | D: Clone + core::fmt::Debug + Eq + PartialEq + std::hash::Hash, [INFO] [stdout] 24 | | B: Consensus, [INFO] [stdout] 25 | | A: Consensus, [INFO] [stdout] 26 | | B::Digest: Into, [INFO] [stdout] 27 | | A::Digest: Into, [INFO] [stdout] | |_______________________^ `Forked` [INFO] [stdout] | [INFO] [stdout] ::: src/c3_consensus/p1_pow.rs:16:1 [INFO] [stdout] | [INFO] [stdout] 16 | impl Consensus for PoW { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ `PoW` [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 for more information) [INFO] [stdout] = help: you might have intended to use the type `()` here instead [INFO] [stdout] help: `!` can be coerced to any type; consider casting it to a concrete type that implements the trait [INFO] [stdout] | [INFO] [stdout] 73 | todo!("Exercise 5") as /* Type */ [INFO] [stdout] | +++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `!: Consensus` is not satisfied [INFO] [stdout] --> src/c3_consensus/p6_forking.rs:108:6 [INFO] [stdout] | [INFO] [stdout] 108 | ) -> impl Consensus { [INFO] [stdout] | ^^^^^^^^^^^^^^ the trait `Consensus` is not implemented for `!` [INFO] [stdout] 109 | todo!("Exercise 6") [INFO] [stdout] | ------------------- return type was inferred to be `!` here [INFO] [stdout] | [INFO] [stdout] help: the following other types implement trait `Consensus` [INFO] [stdout] --> src/c3_consensus/mod.rs:90:1 [INFO] [stdout] | [INFO] [stdout] 90 | impl Consensus for () { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ `()` [INFO] [stdout] | [INFO] [stdout] ::: src/c3_consensus/p6_forking.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / impl Consensus for Forked [INFO] [stdout] 22 | | where [INFO] [stdout] 23 | | D: Clone + core::fmt::Debug + Eq + PartialEq + std::hash::Hash, [INFO] [stdout] 24 | | B: Consensus, [INFO] [stdout] 25 | | A: Consensus, [INFO] [stdout] 26 | | B::Digest: Into, [INFO] [stdout] 27 | | A::Digest: Into, [INFO] [stdout] | |_______________________^ `Forked` [INFO] [stdout] | [INFO] [stdout] ::: src/c3_consensus/p1_pow.rs:16:1 [INFO] [stdout] | [INFO] [stdout] 16 | impl Consensus for PoW { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ `PoW` [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 for more information) [INFO] [stdout] = help: you might have intended to use the type `()` here instead [INFO] [stdout] help: `!` can be coerced to any type; consider casting it to a concrete type that implements the trait [INFO] [stdout] | [INFO] [stdout] 109 | todo!("Exercise 6") as /* Type */ [INFO] [stdout] | +++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `core::num::::max_value`: replaced by the `MAX` associated constant on this type [INFO] [stdout] --> src/c2_blockchain/p3_consensus.rs:17:29 [INFO] [stdout] | [INFO] [stdout] 17 | const THRESHOLD: u64 = u64::max_value() / 100; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `core::num::::max_value`: replaced by the `MAX` associated constant on this type [INFO] [stdout] --> src/c2_blockchain/p5_fork_choice.rs:14:29 [INFO] [stdout] | [INFO] [stdout] 14 | const THRESHOLD: u64 = u64::max_value() / 100; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `core::num::::max_value`: replaced by the `MAX` associated constant on this type [INFO] [stdout] --> src/c2_blockchain/p5_fork_choice.rs:161:23 [INFO] [stdout] | [INFO] [stdout] 161 | if hash(&c2) < u64::max_value() / 1000 { [INFO] [stdout] | ^^^^^^^^^ [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] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [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)]` (part of `#[warn(unused)]`) 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
{ [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)]` (part of `#[warn(unused)]`) 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) -> 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> { [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) -> 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> { [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) -> 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) -> 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) -> 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) -> 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) -> 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) -> 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) -> 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) -> 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) -> 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) -> 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], [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> { [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] [stderr] error: could not compile `blockchain-from-scratch` (lib) due to 5 previous errors; 56 warnings emitted [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) -> 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) -> 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] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b339ba01ee0ffd4dea93e4a5d64663ca9e78bb35b7f9653bb56b40a78dc78ea5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b339ba01ee0ffd4dea93e4a5d64663ca9e78bb35b7f9653bb56b40a78dc78ea5", kill_on_drop: false }` [INFO] [stdout] b339ba01ee0ffd4dea93e4a5d64663ca9e78bb35b7f9653bb56b40a78dc78ea5