[INFO] updating cached repository christopherjmedlin/aoc-2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/christopherjmedlin/aoc-2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/christopherjmedlin/aoc-2018" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/christopherjmedlin/aoc-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/christopherjmedlin/aoc-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/christopherjmedlin/aoc-2018" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/christopherjmedlin/aoc-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/christopherjmedlin/aoc-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a1105aecb9967b4cfb820d6df3fef3937c750298
[INFO] sha for GitHub repo christopherjmedlin/aoc-2018: a1105aecb9967b4cfb820d6df3fef3937c750298
[INFO] validating manifest of christopherjmedlin/aoc-2018 on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of christopherjmedlin/aoc-2018 on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing christopherjmedlin/aoc-2018
[INFO] finished frobbing christopherjmedlin/aoc-2018
[INFO] frobbed toml for christopherjmedlin/aoc-2018 written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/christopherjmedlin/aoc-2018/Cargo.toml
[INFO] started frobbing christopherjmedlin/aoc-2018
[INFO] finished frobbing christopherjmedlin/aoc-2018
[INFO] frobbed toml for christopherjmedlin/aoc-2018 written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/christopherjmedlin/aoc-2018/Cargo.toml
[INFO] crate christopherjmedlin/aoc-2018 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking christopherjmedlin/aoc-2018 against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-4/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/christopherjmedlin/aoc-2018:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1109614ebfb95c5db1c3a0370a051844902bbc655e979fadb2494afcca542e95
[INFO] running `"docker" "start" "-a" "1109614ebfb95c5db1c3a0370a051844902bbc655e979fadb2494afcca542e95"`
[INFO] [stderr]     Checking aoc-2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/daytwo.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `chrono::prelude::*`
[INFO] [stderr]  --> src/dayfour.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use chrono::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/daysix.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BTreeSet`
[INFO] [stderr]  --> src/dayseven.rs:1:24
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::{BTreeSet, HashMap};
[INFO] [stderr]   |                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> src/dayten.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `max`
[INFO] [stderr]  --> src/dayeleven.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp::{max, min};
[INFO] [stderr]   |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/daytwo.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `chrono::prelude::*`
[INFO] [stderr]  --> src/dayfour.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use chrono::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/daysix.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BTreeSet`
[INFO] [stderr]  --> src/dayseven.rs:1:24
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::{BTreeSet, HashMap};
[INFO] [stderr]   |                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> src/dayten.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `max`
[INFO] [stderr]  --> src/dayeleven.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp::{max, min};
[INFO] [stderr]   |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/linkedlist.rs:58:17
[INFO] [stderr]    |
[INFO] [stderr] 58 |             for i in 0..num {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/linkedlist.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |             for i in 0..num {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `identical_characters`
[INFO] [stderr]  --> src/daytwo.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let mut identical_characters = String::new();
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_identical_characters`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `correct_boxes_found`
[INFO] [stderr]  --> src/daytwo.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut correct_boxes_found = false;
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_correct_boxes_found`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/daythree.rs:62:11
[INFO] [stderr]    |
[INFO] [stderr] 62 |     for &(id, x, y, width, height) in tiles.iter() {
[INFO] [stderr]    |           ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayfive.rs:41:17
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let mut i: usize = 0;
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/dayseven.rs:133:13
[INFO] [stderr]     |
[INFO] [stderr] 133 | fn part_two(input: &Vec<String>) -> String {
[INFO] [stderr]     |             ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayeight.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     for i in 0..num_nodes {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayeight.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     for i in 0..num_metadata {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `total_metadata`
[INFO] [stderr]   --> src/dayeight.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let mut total_metadata: u32 = 0;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_total_metadata`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uindex`
[INFO] [stderr]   --> src/dayeight.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let uindex = *index as u32;
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_uindex`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayeight.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     for i in 0..num_nodes {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayeight.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     for i in 0..num_metadata {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/daynine.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     for i in 0..players {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `first_plant` is never read
[INFO] [stderr]   --> src/daytwelve.rs:79:17
[INFO] [stderr]    |
[INFO] [stderr] 79 |                 first_plant = true;
[INFO] [stderr]    |                 ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new_state`
[INFO] [stderr]    --> src/daytwelve.rs:106:13
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let mut new_state: PotState;
[INFO] [stderr]     |             ^^^^^^^^^ help: consider prefixing with an underscore: `_new_state`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/daytwelve.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |     for i in 0..20 {
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/daytwelve.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |     for i in 0..100 {
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/daythirteen.rs:115:13
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let y = carts[0].location.1;
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `end` is never read
[INFO] [stderr]   --> src/dayfourteen.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut end = recipes.get_cursor().unwrap();
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayfourteen.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     for i in 0..pattern.len() {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayfourteen.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |     for i in 0..10 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let mut input: Vec<String> = r.lines()
[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/daytwo.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let mut identical_characters = String::new();
[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/daytwo.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut correct_boxes_found = false;
[INFO] [stderr]   |         ----^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/linkedlist.rs:58:17
[INFO] [stderr]    |
[INFO] [stderr] 58 |             for i in 0..num {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/linkedlist.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |             for i in 0..num {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `identical_characters`
[INFO] [stderr]  --> src/daytwo.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let mut identical_characters = String::new();
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_identical_characters`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `correct_boxes_found`
[INFO] [stderr]  --> src/daytwo.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut correct_boxes_found = false;
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_correct_boxes_found`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/daythree.rs:62:11
[INFO] [stderr]    |
[INFO] [stderr] 62 |     for &(id, x, y, width, height) in tiles.iter() {
[INFO] [stderr]    |           ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayfive.rs:41:17
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let mut i: usize = 0;
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/dayseven.rs:133:13
[INFO] [stderr]     |
[INFO] [stderr] 133 | fn part_two(input: &Vec<String>) -> String {
[INFO] [stderr]     |             ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayeight.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     for i in 0..num_nodes {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayeight.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     for i in 0..num_metadata {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `total_metadata`
[INFO] [stderr]   --> src/dayeight.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let mut total_metadata: u32 = 0;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_total_metadata`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uindex`
[INFO] [stderr]   --> src/dayeight.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let uindex = *index as u32;
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_uindex`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayeight.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     for i in 0..num_nodes {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayeight.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     for i in 0..num_metadata {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/daynine.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     for i in 0..players {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `first_plant` is never read
[INFO] [stderr]   --> src/daytwelve.rs:79:17
[INFO] [stderr]    |
[INFO] [stderr] 79 |                 first_plant = true;
[INFO] [stderr]    |                 ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new_state`
[INFO] [stderr]    --> src/daytwelve.rs:106:13
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let mut new_state: PotState;
[INFO] [stderr]     |             ^^^^^^^^^ help: consider prefixing with an underscore: `_new_state`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/daytwelve.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |     for i in 0..20 {
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/daytwelve.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |     for i in 0..100 {
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/daythirteen.rs:115:13
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let y = carts[0].location.1;
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `end` is never read
[INFO] [stderr]   --> src/dayfourteen.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut end = recipes.get_cursor().unwrap();
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayfourteen.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     for i in 0..pattern.len() {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/dayfourteen.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |     for i in 0..10 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let mut input: Vec<String> = r.lines()
[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/daysix.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |     let mut areas = &parse_input(input);
[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/daytwo.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let mut identical_characters = String::new();
[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/daytwo.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut correct_boxes_found = false;
[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/dayeight.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let mut total_metadata: u32 = 0;
[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/daytwelve.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let mut new_state: PotState;
[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/daysix.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |     let mut areas = &parse_input(input);
[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/dayeight.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let mut total_metadata: u32 = 0;
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `secs_left`
[INFO] [stderr]   --> src/dayseven.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     secs_left: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/dayten.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     File::create("output.txt");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: path statement with no effect
[INFO] [stderr]    --> src/daythirteen.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |         x;
[INFO] [stderr]     |         ^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(path_statements)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/daytwelve.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let mut new_state: PotState;
[INFO] [stderr]     |         ----^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `secs_left`
[INFO] [stderr]   --> src/dayseven.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     secs_left: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/dayten.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     File::create("output.txt");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: path statement with no effect
[INFO] [stderr]    --> src/daythirteen.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |         x;
[INFO] [stderr]     |         ^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(path_statements)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "1109614ebfb95c5db1c3a0370a051844902bbc655e979fadb2494afcca542e95"`
[INFO] running `"docker" "rm" "-f" "1109614ebfb95c5db1c3a0370a051844902bbc655e979fadb2494afcca542e95"`
[INFO] [stdout] 1109614ebfb95c5db1c3a0370a051844902bbc655e979fadb2494afcca542e95