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[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ajzaff/substrate-mfm-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajzaff%2Fsubstrate-mfm-engine", kill_on_drop: false }`
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[INFO] [stdout] 63222eb29832f04118f8cdc72a11fbb05f2643f5
[INFO] checking ajzaff/substrate-mfm-engine against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajzaff%2Fsubstrate-mfm-engine" "/workspace/builds/worker-77/source", kill_on_drop: false }`
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[INFO] validating manifest of git repo https://github.com/ajzaff/substrate-mfm-engine on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
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[INFO] started tweaking git repo https://github.com/ajzaff/substrate-mfm-engine
[INFO] finished tweaking git repo https://github.com/ajzaff/substrate-mfm-engine
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[INFO] crate git repo https://github.com/ajzaff/substrate-mfm-engine already has a lockfile, it will not be regenerated
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[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   lalrpop-util v0.19.5: lexer, regex
[INFO] [stderr]   log v0.4.14 (as host dependency): std
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[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]    Compiling substrate-engine v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating build.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/bin/ewar.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/bin/ewimops.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/bin/../runtime/mfm.rs (2 fixes)
[INFO] [stderr]        Fixed src/bin/../runtime/mod.rs (1 fix)
[INFO] [stdout] warning: unused import: `EventWindow`
[INFO] [stdout]  --> src/bin/../runtime/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use mfm::{EventWindow, Metadata};
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         (2, -1) => 19,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         (2, 1) => 20,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMPTY`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | const EMPTY: char = '.';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `OCCUPIED`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | const OCCUPIED: char = 'x';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BAD`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | const BAD: char = '!';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:364:5
[INFO] [stdout]     |
[INFO] [stdout] 364 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:370:12
[INFO] [stdout]     |
[INFO] [stdout] 370 |     pub fn new(rng: &'a mut R, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:374:12
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn with_scale(rng: &'a mut R, scale: usize, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 499 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:505:12
[INFO] [stdout]     |
[INFO] [stdout] 505 |     pub fn new(rng: &'a mut R, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:509:12
[INFO] [stdout]     |
[INFO] [stdout] 509 |     pub fn with_scale(rng: &'a mut R, scale: usize, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoElement`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:36:3
[INFO] [stdout]    |
[INFO] [stdout] 36 |   NoElement,
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StackUnderflow`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 40 |   StackUnderflow, // TODO: add context
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:79:10
[INFO] [stdout]    |
[INFO] [stdout] 79 |   pub fn reset(&mut self, s: Symmetries) {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../base/color.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Label`
[INFO] [stdout]  --> src/bin/../ast.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Label(&'input str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Metadata`
[INFO] [stdout]  --> src/bin/../ast.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Metadata(Metadata<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Instruction`
[INFO] [stdout]  --> src/bin/../ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Instruction(Instruction<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute `ignore`
[INFO] [stdout]   --> src/code.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[ignore = "unused"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: the built-in attribute `ignore` will be ignored, since it's applied to the macro invocation `lalrpop_mod`
[INFO] [stdout]   --> src/code.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | lalrpop_mod!(pub substrate); // syntesized by LALRPOP
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]        Fixed src/bin/ewimops.rs (2 fixes)
[INFO] [stdout] warning: unused import: `EventWindow`
[INFO] [stdout]  --> src/bin/../runtime/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use mfm::{EventWindow, Metadata};
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         (2, -1) => 19,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         (2, 1) => 20,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/base/color.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `components`
[INFO] [stdout]   --> src/base/color.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 |   pub fn components(&self) -> (u8, u8, u8, u8) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-8a7487cdd1cbae5f/out/substrate.rs:4896:16
[INFO] [stdout]      |
[INFO] [stdout] 4896 |         pub fn new() -> InstructionParser {
[INFO] [stdout]      |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-8a7487cdd1cbae5f/out/substrate.rs:8362:16
[INFO] [stdout]      |
[INFO] [stdout] 8362 |         pub fn new() -> MetadataParser {
[INFO] [stdout]      |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoName`
[INFO] [stdout]   --> src/code.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     NoName,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EventWindow`
[INFO] [stdout]  --> src/bin/../runtime/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use mfm::{EventWindow, Metadata};
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         (2, -1) => 19,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         (2, 1) => 20,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `VOID`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | const VOID: char = ' ';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMPTY`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | const EMPTY: char = '.';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `OCCUPIED`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | const OCCUPIED: char = 'x';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `UNKNOWN`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:36:1
[INFO] [stdout]    |
[INFO] [stdout] 36 | const UNKNOWN: char = '?';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BAD`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | const BAD: char = '!';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn new(rng: &'a mut R) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sample_symmetries`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:283:8
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub fn sample_symmetries<R: RngCore>(r: &mut R, s: Symmetries) -> Symmetries {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `debug_event_window`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:287:8
[INFO] [stdout]     |
[INFO] [stdout] 287 | pub fn debug_event_window<T: EventWindow>(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:364:5
[INFO] [stdout]     |
[INFO] [stdout] 364 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:370:12
[INFO] [stdout]     |
[INFO] [stdout] 370 |     pub fn new(rng: &'a mut R, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:374:12
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn with_scale(rng: &'a mut R, scale: usize, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 499 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoElement`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:36:3
[INFO] [stdout]    |
[INFO] [stdout] 36 |   NoElement,
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StackUnderflow`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 40 |   StackUnderflow, // TODO: add context
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../base/color.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Label`
[INFO] [stdout]  --> src/bin/../ast.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Label(&'input str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Metadata`
[INFO] [stdout]  --> src/bin/../ast.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Metadata(Metadata<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Instruction`
[INFO] [stdout]  --> src/bin/../ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Instruction(Instruction<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `VOID`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | const VOID: char = ' ';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMPTY`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | const EMPTY: char = '.';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `OCCUPIED`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | const OCCUPIED: char = 'x';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `UNKNOWN`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:36:1
[INFO] [stdout]    |
[INFO] [stdout] 36 | const UNKNOWN: char = '?';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BAD`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | const BAD: char = '!';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn new(rng: &'a mut R) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `debug_event_window`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:287:8
[INFO] [stdout]     |
[INFO] [stdout] 287 | pub fn debug_event_window<T: EventWindow>(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:364:5
[INFO] [stdout]     |
[INFO] [stdout] 364 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:370:12
[INFO] [stdout]     |
[INFO] [stdout] 370 |     pub fn new(rng: &'a mut R, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:374:12
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn with_scale(rng: &'a mut R, scale: usize, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 499 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoElement`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:36:3
[INFO] [stdout]    |
[INFO] [stdout] 36 |   NoElement,
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StackUnderflow`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 40 |   StackUnderflow, // TODO: add context
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../base/color.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Label`
[INFO] [stdout]  --> src/bin/../ast.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Label(&'input str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Metadata`
[INFO] [stdout]  --> src/bin/../ast.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Metadata(Metadata<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Instruction`
[INFO] [stdout]  --> src/bin/../ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Instruction(Instruction<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EventWindow`
[INFO] [stdout]  --> src/bin/../runtime/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use mfm::{EventWindow, Metadata};
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         (2, -1) => 19,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         (2, 1) => 20,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMPTY`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | const EMPTY: char = '.';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `OCCUPIED`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | const OCCUPIED: char = 'x';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BAD`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | const BAD: char = '!';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sample_symmetries`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:283:8
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub fn sample_symmetries<R: RngCore>(r: &mut R, s: Symmetries) -> Symmetries {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:364:5
[INFO] [stdout]     |
[INFO] [stdout] 364 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:370:12
[INFO] [stdout]     |
[INFO] [stdout] 370 |     pub fn new(rng: &'a mut R, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:374:12
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn with_scale(rng: &'a mut R, scale: usize, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 499 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:505:12
[INFO] [stdout]     |
[INFO] [stdout] 505 |     pub fn new(rng: &'a mut R, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:509:12
[INFO] [stdout]     |
[INFO] [stdout] 509 |     pub fn with_scale(rng: &'a mut R, scale: usize, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoElement`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:36:3
[INFO] [stdout]    |
[INFO] [stdout] 36 |   NoElement,
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StackUnderflow`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 40 |   StackUnderflow, // TODO: add context
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:79:10
[INFO] [stdout]    |
[INFO] [stdout] 79 |   pub fn reset(&mut self, s: Symmetries) {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../base/color.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Label`
[INFO] [stdout]  --> src/bin/../ast.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Label(&'input str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Metadata`
[INFO] [stdout]  --> src/bin/../ast.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Metadata(Metadata<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Instruction`
[INFO] [stdout]  --> src/bin/../ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Instruction(Instruction<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute `ignore`
[INFO] [stdout]   --> src/code.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[ignore = "unused"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: the built-in attribute `ignore` will be ignored, since it's applied to the macro invocation `lalrpop_mod`
[INFO] [stdout]   --> src/code.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | lalrpop_mod!(pub substrate); // syntesized by LALRPOP
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/base/color.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `components`
[INFO] [stdout]   --> src/base/color.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 |   pub fn components(&self) -> (u8, u8, u8, u8) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-8a7487cdd1cbae5f/out/substrate.rs:4896:16
[INFO] [stdout]      |
[INFO] [stdout] 4896 |         pub fn new() -> InstructionParser {
[INFO] [stdout]      |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-8a7487cdd1cbae5f/out/substrate.rs:8362:16
[INFO] [stdout]      |
[INFO] [stdout] 8362 |         pub fn new() -> MetadataParser {
[INFO] [stdout]      |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoName`
[INFO] [stdout]   --> src/code.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     NoName,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking lalrpop-util v0.19.5
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling lalrpop v0.19.5
[INFO] [stderr]    Compiling substrate-engine v0.1.0 (/tmp/fixit)
[INFO] [stdout] error[E0432]: unresolved import `self::__lalrpop_util::lexer`
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:32:31
[INFO] [stdout]    |
[INFO] [stdout] 32 |     use self::__lalrpop_util::lexer::Token;
[INFO] [stdout]    |                               ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `self::__lalrpop_util::lexer`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:3997:31
[INFO] [stdout]      |
[INFO] [stdout] 3997 |     use self::__lalrpop_util::lexer::Token;
[INFO] [stdout]      |                               ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `self::__lalrpop_util::lexer`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:7773:31
[INFO] [stdout]      |
[INFO] [stdout] 7773 |     use self::__lalrpop_util::lexer::Token;
[INFO] [stdout]      |                               ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `self::__lalrpop_util::lexer`
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:11357:38
[INFO] [stdout]       |
[INFO] [stdout] 11357 | pub(crate) use self::__lalrpop_util::lexer::Token;
[INFO] [stdout]       |                                      ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `__lalrpop_util`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:1115:34
[INFO] [stdout]      |
[INFO] [stdout] 1115 |         builder: __lalrpop_util::lexer::MatcherBuilder,
[INFO] [stdout]      |                                  ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `__lalrpop_util`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:4891:34
[INFO] [stdout]      |
[INFO] [stdout] 4891 |         builder: __lalrpop_util::lexer::MatcherBuilder,
[INFO] [stdout]      |                                  ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `__lalrpop_util`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:8357:34
[INFO] [stdout]      |
[INFO] [stdout] 8357 |         builder: __lalrpop_util::lexer::MatcherBuilder,
[INFO] [stdout]      |                                  ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `__lalrpop_util`
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:11237:45
[INFO] [stdout]       |
[INFO] [stdout] 11237 |     pub fn new_builder() -> __lalrpop_util::lexer::MatcherBuilder {
[INFO] [stdout]       |                                             ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `self::__lalrpop_util::lexer`
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:32:31
[INFO] [stdout]    |
[INFO] [stdout] 32 |     use self::__lalrpop_util::lexer::Token;
[INFO] [stdout]    |                               ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `self::__lalrpop_util::lexer`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:3997:31
[INFO] [stdout]      |
[INFO] [stdout] 3997 |     use self::__lalrpop_util::lexer::Token;
[INFO] [stdout]      |                               ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `self::__lalrpop_util::lexer`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:7773:31
[INFO] [stdout]      |
[INFO] [stdout] 7773 |     use self::__lalrpop_util::lexer::Token;
[INFO] [stdout]      |                               ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `self::__lalrpop_util::lexer`
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:11357:38
[INFO] [stdout]       |
[INFO] [stdout] 11357 | pub(crate) use self::__lalrpop_util::lexer::Token;
[INFO] [stdout]       |                                      ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `__lalrpop_util`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:1115:34
[INFO] [stdout]      |
[INFO] [stdout] 1115 |         builder: __lalrpop_util::lexer::MatcherBuilder,
[INFO] [stdout]      |                                  ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `__lalrpop_util`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:4891:34
[INFO] [stdout]      |
[INFO] [stdout] 4891 |         builder: __lalrpop_util::lexer::MatcherBuilder,
[INFO] [stdout]      |                                  ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `__lalrpop_util`
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:11354:25
[INFO] [stdout]       |
[INFO] [stdout] 11354 |         __lalrpop_util::lexer::MatcherBuilder::new(__strs.iter().copied()).unwrap()
[INFO] [stdout]       |                         ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `lalrpop_util`
[INFO] [stdout]   --> src/code.rs:23:62
[INFO] [stdout]    |
[INFO] [stdout] 23 |     ParseError(lalrpop_util::ParseError<usize, lalrpop_util::lexer::Token<'input>, &'input str>),
[INFO] [stdout]    |                                                              ^^^^^ could not find `lexer` in `lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `lalrpop_util`
[INFO] [stdout]   --> src/code.rs:34:65
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<'input> From<lalrpop_util::ParseError<usize, lalrpop_util::lexer::Token<'input>, &'input str>>
[INFO] [stdout]    |                                                                 ^^^^^ could not find `lexer` in `lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `lalrpop_util`
[INFO] [stdout]   --> src/code.rs:38:58
[INFO] [stdout]    |
[INFO] [stdout] 38 |         x: lalrpop_util::ParseError<usize, lalrpop_util::lexer::Token<'input>, &'input str>,
[INFO] [stdout]    |                                                          ^^^^^ could not find `lexer` in `lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `__lalrpop_util`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:8357:34
[INFO] [stdout]      |
[INFO] [stdout] 8357 |         builder: __lalrpop_util::lexer::MatcherBuilder,
[INFO] [stdout]      |                                  ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `__lalrpop_util`
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:11237:45
[INFO] [stdout]       |
[INFO] [stdout] 11237 |     pub fn new_builder() -> __lalrpop_util::lexer::MatcherBuilder {
[INFO] [stdout]       |                                             ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `__lalrpop_util`
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/substrate-engine-4173dbf74c8f1a6f/out/substrate.rs:11354:25
[INFO] [stdout]       |
[INFO] [stdout] 11354 |         __lalrpop_util::lexer::MatcherBuilder::new(__strs.iter().copied()).unwrap()
[INFO] [stdout]       |                         ^^^^^ could not find `lexer` in `__lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `lalrpop_util`
[INFO] [stdout]   --> src/code.rs:23:62
[INFO] [stdout]    |
[INFO] [stdout] 23 |     ParseError(lalrpop_util::ParseError<usize, lalrpop_util::lexer::Token<'input>, &'input str>),
[INFO] [stdout]    |                                                              ^^^^^ could not find `lexer` in `lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `lalrpop_util`
[INFO] [stdout]   --> src/code.rs:34:65
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<'input> From<lalrpop_util::ParseError<usize, lalrpop_util::lexer::Token<'input>, &'input str>>
[INFO] [stdout]    |                                                                 ^^^^^ could not find `lexer` in `lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `lexer` in `lalrpop_util`
[INFO] [stdout]   --> src/code.rs:38:58
[INFO] [stdout]    |
[INFO] [stdout] 38 |         x: lalrpop_util::ParseError<usize, lalrpop_util::lexer::Token<'input>, &'input str>,
[INFO] [stdout]    |                                                          ^^^^^ could not find `lexer` in `lalrpop_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute `ignore`
[INFO] [stdout]   --> src/code.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[ignore = "unused"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: the built-in attribute `ignore` will be ignored, since it's applied to the macro invocation `lalrpop_mod`
[INFO] [stdout]   --> src/code.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | lalrpop_mod!(pub substrate); // syntesized by LALRPOP
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute `ignore`
[INFO] [stdout]   --> src/code.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[ignore = "unused"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: the built-in attribute `ignore` will be ignored, since it's applied to the macro invocation `lalrpop_mod`
[INFO] [stdout]   --> src/code.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | lalrpop_mod!(pub substrate); // syntesized by LALRPOP
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EventWindow`
[INFO] [stdout]  --> src/bin/../runtime/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use mfm::{EventWindow, Metadata};
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         (2, -1) => 19,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         (2, 1) => 20,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EventWindow`
[INFO] [stdout]  --> src/bin/../runtime/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use mfm::{EventWindow, Metadata};
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         (2, -1) => 19,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         (2, 1) => 20,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EventWindow`
[INFO] [stdout]  --> src/bin/../runtime/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use mfm::{EventWindow, Metadata};
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         (2, -1) => 19,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         (2, 1) => 20,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EventWindow`
[INFO] [stdout]  --> src/bin/../runtime/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use mfm::{EventWindow, Metadata};
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         (2, -1) => 19,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         (2, 1) => 20,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMPTY`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | const EMPTY: char = '.';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `OCCUPIED`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | const OCCUPIED: char = 'x';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BAD`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | const BAD: char = '!';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:364:5
[INFO] [stdout]     |
[INFO] [stdout] 364 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:370:12
[INFO] [stdout]     |
[INFO] [stdout] 370 |     pub fn new(rng: &'a mut R, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:374:12
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn with_scale(rng: &'a mut R, scale: usize, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 499 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:505:12
[INFO] [stdout]     |
[INFO] [stdout] 505 |     pub fn new(rng: &'a mut R, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:509:12
[INFO] [stdout]     |
[INFO] [stdout] 509 |     pub fn with_scale(rng: &'a mut R, scale: usize, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoElement`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:36:3
[INFO] [stdout]    |
[INFO] [stdout] 36 |   NoElement,
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StackUnderflow`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 40 |   StackUnderflow, // TODO: add context
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:79:10
[INFO] [stdout]    |
[INFO] [stdout] 79 |   pub fn reset(&mut self, s: Symmetries) {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../base/color.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Label`
[INFO] [stdout]  --> src/bin/../ast.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Label(&'input str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Metadata`
[INFO] [stdout]  --> src/bin/../ast.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Metadata(Metadata<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Instruction`
[INFO] [stdout]  --> src/bin/../ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Instruction(Instruction<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `VOID`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | const VOID: char = ' ';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMPTY`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | const EMPTY: char = '.';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `OCCUPIED`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | const OCCUPIED: char = 'x';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `UNKNOWN`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:36:1
[INFO] [stdout]    |
[INFO] [stdout] 36 | const UNKNOWN: char = '?';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BAD`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | const BAD: char = '!';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn new(rng: &'a mut R) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `debug_event_window`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:287:8
[INFO] [stdout]     |
[INFO] [stdout] 287 | pub fn debug_event_window<T: EventWindow>(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:364:5
[INFO] [stdout]     |
[INFO] [stdout] 364 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:370:12
[INFO] [stdout]     |
[INFO] [stdout] 370 |     pub fn new(rng: &'a mut R, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:374:12
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn with_scale(rng: &'a mut R, scale: usize, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 499 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoElement`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:36:3
[INFO] [stdout]    |
[INFO] [stdout] 36 |   NoElement,
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StackUnderflow`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 40 |   StackUnderflow, // TODO: add context
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../base/color.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Label`
[INFO] [stdout]  --> src/bin/../ast.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Label(&'input str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Metadata`
[INFO] [stdout]  --> src/bin/../ast.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Metadata(Metadata<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Instruction`
[INFO] [stdout]  --> src/bin/../ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Instruction(Instruction<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `VOID`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | const VOID: char = ' ';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMPTY`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | const EMPTY: char = '.';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `OCCUPIED`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | const OCCUPIED: char = 'x';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `UNKNOWN`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:36:1
[INFO] [stdout]    |
[INFO] [stdout] 36 | const UNKNOWN: char = '?';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BAD`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | const BAD: char = '!';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn new(rng: &'a mut R) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sample_symmetries`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:283:8
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub fn sample_symmetries<R: RngCore>(r: &mut R, s: Symmetries) -> Symmetries {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `debug_event_window`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:287:8
[INFO] [stdout]     |
[INFO] [stdout] 287 | pub fn debug_event_window<T: EventWindow>(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:364:5
[INFO] [stdout]     |
[INFO] [stdout] 364 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:370:12
[INFO] [stdout]     |
[INFO] [stdout] 370 |     pub fn new(rng: &'a mut R, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:374:12
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn with_scale(rng: &'a mut R, scale: usize, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 499 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoElement`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:36:3
[INFO] [stdout]    |
[INFO] [stdout] 36 |   NoElement,
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StackUnderflow`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 40 |   StackUnderflow, // TODO: add context
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../base/color.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Label`
[INFO] [stdout]  --> src/bin/../ast.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Label(&'input str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Metadata`
[INFO] [stdout]  --> src/bin/../ast.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Metadata(Metadata<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Instruction`
[INFO] [stdout]  --> src/bin/../ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Instruction(Instruction<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMPTY`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | const EMPTY: char = '.';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `OCCUPIED`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | const OCCUPIED: char = 'x';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BAD`
[INFO] [stdout]   --> src/bin/../runtime/mfm.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | const BAD: char = '!';
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sample_symmetries`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:283:8
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub fn sample_symmetries<R: RngCore>(r: &mut R, s: Symmetries) -> Symmetries {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:364:5
[INFO] [stdout]     |
[INFO] [stdout] 364 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:370:12
[INFO] [stdout]     |
[INFO] [stdout] 370 |     pub fn new(rng: &'a mut R, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:374:12
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn with_scale(rng: &'a mut R, scale: usize, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 499 |     scale: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:505:12
[INFO] [stdout]     |
[INFO] [stdout] 505 |     pub fn new(rng: &'a mut R, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_scale`
[INFO] [stdout]    --> src/bin/../runtime/mfm.rs:509:12
[INFO] [stdout]     |
[INFO] [stdout] 509 |     pub fn with_scale(rng: &'a mut R, scale: usize, size: (usize, usize)) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoElement`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:36:3
[INFO] [stdout]    |
[INFO] [stdout] 36 |   NoElement,
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StackUnderflow`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 40 |   StackUnderflow, // TODO: add context
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]   --> src/bin/../runtime/mod.rs:79:10
[INFO] [stdout]    |
[INFO] [stdout] 79 |   pub fn reset(&mut self, s: Symmetries) {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../base/color.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new() -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Label`
[INFO] [stdout]  --> src/bin/../ast.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Label(&'input str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Metadata`
[INFO] [stdout]  --> src/bin/../ast.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Metadata(Metadata<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Instruction`
[INFO] [stdout]  --> src/bin/../ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Instruction(Instruction<'input>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `substrate-engine` due to 13 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 12 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] [stderr] error: failed to check after updating to 2021
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo check --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "97723a69854f148d39645fb65b237b937b4a29b6ab39fd4c9c1b4e29527cd9bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97723a69854f148d39645fb65b237b937b4a29b6ab39fd4c9c1b4e29527cd9bc", kill_on_drop: false }`
[INFO] [stdout] 97723a69854f148d39645fb65b237b937b4a29b6ab39fd4c9c1b4e29527cd9bc