[INFO] updating cached repository https://github.com/Sonnenhut/aoc2019
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/Sonnenhut/aoc2019
[INFO] [stderr]    865bd80..37b5346  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 37b53462199a205ad8f4c594b81d11dd549b6ef4
[INFO] checking Sonnenhut/aoc2019 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSonnenhut%2Faoc2019" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sonnenhut/aoc2019 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Sonnenhut/aoc2019
[INFO] finished tweaking git repo https://github.com/Sonnenhut/aoc2019
[INFO] tweaked toml for git repo https://github.com/Sonnenhut/aoc2019 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Sonnenhut/aoc2019 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6d9748f0f4f9664fde385c56377c79bfca9a74185a616ebbcd38b4f7738335e0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "6d9748f0f4f9664fde385c56377c79bfca9a74185a616ebbcd38b4f7738335e0"`
[INFO] [stderr]     Checking aoc2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/bin/day11.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]   --> src/bin/day06.rs:26:40
[INFO] [stderr]    |
[INFO] [stderr] 26 |     [origin_distance, target_distance].into_iter().flatten().sum()
[INFO] [stderr]    |                                        ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `aoc2019::intcode::IntCode`
[INFO] [stderr]  --> src/bin/day20.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use aoc2019::intcode::IntCode;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Map`
[INFO] [stderr]  --> src/bin/day20.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::iter::{Map, repeat};
[INFO] [stderr]   |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Iter`
[INFO] [stderr]  --> src/bin/day20.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::path::Iter;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::convert::TryInto`
[INFO] [stderr]  --> src/bin/day20.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::convert::TryInto;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]  --> src/bin/day20.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::iter;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `aoc2019::read_lines`
[INFO] [stderr]  --> src/bin/day18.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use aoc2019::read_lines;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::char::ToLowercase`
[INFO] [stderr]  --> src/bin/day18.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::char::ToLowercase;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Instant`
[INFO] [stderr]  --> src/bin/day18.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::time::Instant;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `aoc2019::read_lines`
[INFO] [stderr]  --> src/bin/day18.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use aoc2019::read_lines;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::char::ToLowercase`
[INFO] [stderr]  --> src/bin/day18.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::char::ToLowercase;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Instant`
[INFO] [stderr]  --> src/bin/day18.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::time::Instant;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `portalCoord`
[INFO] [stderr]    --> src/bin/day20.rs:115:27
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 .filter(|(portalCoord,charr)| *charr == '.')
[INFO] [stderr]     |                           ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_portalCoord`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `portalCoord`
[INFO] [stderr]    --> src/bin/day20.rs:119:27
[INFO] [stderr]     |
[INFO] [stderr] 119 |                 .filter(|(portalCoord,charr)| charr.is_alphabetic())
[INFO] [stderr]     |                           ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_portalCoord`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `portalCoord`
[INFO] [stderr]    --> src/bin/day20.rs:120:24
[INFO] [stderr]     |
[INFO] [stderr] 120 |                 .map(|(portalCoord,charr)| *charr)
[INFO] [stderr]     |                        ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_portalCoord`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `charr`
[INFO] [stderr]    --> src/bin/day20.rs:122:86
[INFO] [stderr]     |
[INFO] [stderr] 122 |             let portal_with_loc: Option<(String, Coord)> = portal.map(|(portalCoord, charr)|{
[INFO] [stderr]     |                                                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_charr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/bin/day20.rs:137:27
[INFO] [stderr]     |
[INFO] [stderr] 137 |                 .filter(|(x,c)| c.is_alphabetic())
[INFO] [stderr]     |                           ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `portalCoord`
[INFO] [stderr]    --> src/bin/day20.rs:180:19
[INFO] [stderr]     |
[INFO] [stderr] 180 |         .filter(|(portalCoord,charr)| *charr == '.')
[INFO] [stderr]     |                   ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_portalCoord`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::slice::SliceIndex`
[INFO] [stderr]  --> src/bin/day18.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::slice::SliceIndex;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]   --> src/bin/day06.rs:26:40
[INFO] [stderr]    |
[INFO] [stderr] 26 |     [origin_distance, target_distance].into_iter().flatten().sum()
[INFO] [stderr]    |                                        ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::slice::SliceIndex`
[INFO] [stderr]  --> src/bin/day18.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::slice::SliceIndex;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `gauge_beam` in this scope
[INFO] [stderr]   --> src/bin/day19.rs:56:20
[INFO] [stderr]    |
[INFO] [stderr] 56 |         assert_eq!(gauge_beam(&mem), 234);
[INFO] [stderr]    |                    ^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `coord`
[INFO] [stderr]   --> src/bin/day18.rs:99:47
[INFO] [stderr]    |
[INFO] [stderr] 99 |     walkables(&maze).into_iter().filter(|(ch, coord)| ch.is_lowercase()).collect()
[INFO] [stderr]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_coord`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start`
[INFO] [stderr]    --> src/bin/day18.rs:102:13
[INFO] [stderr]     |
[INFO] [stderr] 102 | fn distance(start: &Coord, goal: &Coord, maze: &Vec<String>) -> usize {
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `goal`
[INFO] [stderr]    --> src/bin/day18.rs:102:28
[INFO] [stderr]     |
[INFO] [stderr] 102 | fn distance(start: &Coord, goal: &Coord, maze: &Vec<String>) -> usize {
[INFO] [stderr]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_goal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `coord`
[INFO] [stderr]   --> src/bin/day18.rs:99:47
[INFO] [stderr]    |
[INFO] [stderr] 99 |     walkables(&maze).into_iter().filter(|(ch, coord)| ch.is_lowercase()).collect()
[INFO] [stderr]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_coord`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start`
[INFO] [stderr]    --> src/bin/day18.rs:102:13
[INFO] [stderr]     |
[INFO] [stderr] 102 | fn distance(start: &Coord, goal: &Coord, maze: &Vec<String>) -> usize {
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `goal`
[INFO] [stderr]    --> src/bin/day18.rs:102:28
[INFO] [stderr]     |
[INFO] [stderr] 102 | fn distance(start: &Coord, goal: &Coord, maze: &Vec<String>) -> usize {
[INFO] [stderr]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_goal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]  --> src/bin/day19.rs:3:24
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day18.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let mut keys = keys(&maze);
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day18.rs:119:13
[INFO] [stderr]     |
[INFO] [stderr] 119 |         let mut position = initial_position.clone();
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day18.rs:144:17
[INFO] [stderr]     |
[INFO] [stderr] 144 |             let mut next = State { steps: steps + 1, position: neighbour.clone()};
[INFO] [stderr]     |                 ----^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day18.rs:158:9
[INFO] [stderr]     |
[INFO] [stderr] 158 |     let mut keys = keys(&maze);
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day18.rs:174:13
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let mut position = initial_position.clone();
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day18.rs:199:17
[INFO] [stderr]     |
[INFO] [stderr] 199 |             let mut next = State { steps: steps + 1, position: neighbour.clone()};
[INFO] [stderr]     |                 ----^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `distance`
[INFO] [stderr]    --> src/bin/day18.rs:102:4
[INFO] [stderr]     |
[INFO] [stderr] 102 | fn distance(start: &Coord, goal: &Coord, maze: &Vec<String>) -> usize {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the `steps:` in this pattern is redundant
[INFO] [stderr]    --> src/bin/day18.rs:118:28
[INFO] [stderr]     |
[INFO] [stderr] 118 |     while let Some(State { steps: steps, position: initial_position}) = heap.pop() {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use shorthand field pattern: `steps`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_shorthand_field_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the `steps:` in this pattern is redundant
[INFO] [stderr]    --> src/bin/day18.rs:173:28
[INFO] [stderr]     |
[INFO] [stderr] 173 |     while let Some(State { steps: steps, position: initial_position}) = heap.pop() {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use shorthand field pattern: `steps`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day20.rs:207:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |         let mut ex =
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day20.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 |         let mut maze = ex.split('\n').map(String::from).collect();
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `aoc2019`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day20.rs:259:13
[INFO] [stderr]     |
[INFO] [stderr] 259 |         let mut unique_portals : HashSet<Coord> = connected_portals(&maze).keys().cloned().collect();
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day20.rs:265:13
[INFO] [stderr]     |
[INFO] [stderr] 265 |         let mut ex =
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day20.rs:285:13
[INFO] [stderr]     |
[INFO] [stderr] 285 |         let mut maze = ex.split('\n').map(String::from).collect();
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day18.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let mut keys = keys(&maze);
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day18.rs:119:13
[INFO] [stderr]     |
[INFO] [stderr] 119 |         let mut position = initial_position.clone();
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day18.rs:144:17
[INFO] [stderr]     |
[INFO] [stderr] 144 |             let mut next = State { steps: steps + 1, position: neighbour.clone()};
[INFO] [stderr]     |                 ----^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `portalCoord` should have a snake case name
[INFO] [stderr]    --> src/bin/day20.rs:115:27
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 .filter(|(portalCoord,charr)| *charr == '.')
[INFO] [stderr]     |                           ^^^^^^^^^^^ help: convert the identifier to snake case: `portal_coord`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `portalCoord` should have a snake case name
[INFO] [stderr]    --> src/bin/day20.rs:119:27
[INFO] [stderr]     |
[INFO] [stderr] 119 |                 .filter(|(portalCoord,charr)| charr.is_alphabetic())
[INFO] [stderr]     |                           ^^^^^^^^^^^ help: convert the identifier to snake case: `portal_coord`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `portalCoord` should have a snake case name
[INFO] [stderr]    --> src/bin/day20.rs:120:24
[INFO] [stderr]     |
[INFO] [stderr] 120 |                 .map(|(portalCoord,charr)| *charr)
[INFO] [stderr]     |                        ^^^^^^^^^^^ help: convert the identifier to snake case: `portal_coord`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `portalCoord` should have a snake case name
[INFO] [stderr]    --> src/bin/day20.rs:122:73
[INFO] [stderr]     |
[INFO] [stderr] 122 |             let portal_with_loc: Option<(String, Coord)> = portal.map(|(portalCoord, charr)|{
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^ help: convert the identifier to snake case: `portal_coord`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `portalCoord` should have a snake case name
[INFO] [stderr]    --> src/bin/day20.rs:180:19
[INFO] [stderr]     |
[INFO] [stderr] 180 |         .filter(|(portalCoord,charr)| *charr == '.')
[INFO] [stderr]     |                   ^^^^^^^^^^^ help: convert the identifier to snake case: `portal_coord`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day18.rs:158:9
[INFO] [stderr]     |
[INFO] [stderr] 158 |     let mut keys = keys(&maze);
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day18.rs:174:13
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let mut position = initial_position.clone();
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day18.rs:199:17
[INFO] [stderr]     |
[INFO] [stderr] 199 |             let mut next = State { steps: steps + 1, position: neighbour.clone()};
[INFO] [stderr]     |                 ----^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `distance`
[INFO] [stderr]    --> src/bin/day18.rs:102:4
[INFO] [stderr]     |
[INFO] [stderr] 102 | fn distance(start: &Coord, goal: &Coord, maze: &Vec<String>) -> usize {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the `steps:` in this pattern is redundant
[INFO] [stderr]    --> src/bin/day18.rs:118:28
[INFO] [stderr]     |
[INFO] [stderr] 118 |     while let Some(State { steps: steps, position: initial_position}) = heap.pop() {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use shorthand field pattern: `steps`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_shorthand_field_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the `steps:` in this pattern is redundant
[INFO] [stderr]    --> src/bin/day18.rs:173:28
[INFO] [stderr]     |
[INFO] [stderr] 173 |     while let Some(State { steps: steps, position: initial_position}) = heap.pop() {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use shorthand field pattern: `steps`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/bin/day11.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6d9748f0f4f9664fde385c56377c79bfca9a74185a616ebbcd38b4f7738335e0"`
[INFO] running `"docker" "rm" "-f" "6d9748f0f4f9664fde385c56377c79bfca9a74185a616ebbcd38b4f7738335e0"`
[INFO] [stdout] 6d9748f0f4f9664fde385c56377c79bfca9a74185a616ebbcd38b4f7738335e0
