[INFO] updating cached repository https://github.com/y6nH/aoc2018
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d2cfacfebdd6184dbaa69ce647d86fcf189e2267
[INFO] testing y6nH/aoc2018 against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy6nH%2Faoc2018" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/y6nH/aoc2018 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/y6nH/aoc2018
[INFO] finished tweaking git repo https://github.com/y6nH/aoc2018
[INFO] tweaked toml for git repo https://github.com/y6nH/aoc2018 written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/y6nH/aoc2018 already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 4eccbc57aced0dc38d72512e5190408ae0c8cf938ace4537e4b4f18234938ce9
[INFO] running `"docker" "start" "-a" "4eccbc57aced0dc38d72512e5190408ae0c8cf938ace4537e4b4f18234938ce9"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling time v0.1.41
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling aoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `coords`
[INFO] [stderr]   --> src/day6.rs:58:17
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn find_closest(coords: &Vec<(usize, usize)>, target: &(usize, usize)) -> usize {
[INFO] [stderr]    |                 ^^^^^^ help: consider prefixing with an underscore: `_coords`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target`
[INFO] [stderr]   --> src/day6.rs:58:47
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn find_closest(coords: &Vec<(usize, usize)>, target: &(usize, usize)) -> usize {
[INFO] [stderr]    |                                               ^^^^^^ help: consider prefixing with an underscore: `_target`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day1.rs:21:11
[INFO] [stderr]    |
[INFO] [stderr] 21 |       for mut line in split {
[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/day1.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |         for mut line in split {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `a`
[INFO] [stderr]  --> src/day1.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn a() {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `b`
[INFO] [stderr]   --> src/day1.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn b() {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `a`
[INFO] [stderr]  --> src/day2.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn a() {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `b`
[INFO] [stderr]   --> src/day2.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn b() {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `only_one_difference`
[INFO] [stderr]   --> src/day2.rs:57:1
[INFO] [stderr]    |
[INFO] [stderr] 57 | fn only_one_difference(s1: &str, s2: &str) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `a`
[INFO] [stderr]   --> src/day3.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn a() {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_claim`
[INFO] [stderr]   --> src/day3.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | / fn check_claim(
[INFO] [stderr] 60 | |   x: &usize,
[INFO] [stderr] 61 | |   y: &usize,
[INFO] [stderr] 62 | |   w: &usize,
[INFO] [stderr] ...  |
[INFO] [stderr] 77 | |   return uncontested;
[INFO] [stderr] 78 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `a`
[INFO] [stderr]   --> src/day4.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn a() {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `a`
[INFO] [stderr]  --> src/day5.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn a() {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `b`
[INFO] [stderr]   --> src/day5.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn b() {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `collapse_bytes`
[INFO] [stderr]   --> src/day5.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn collapse_bytes(bytes: &Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `collapse_bytes_loop`
[INFO] [stderr]   --> src/day5.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn collapse_bytes_loop(bytes: Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `a`
[INFO] [stderr]  --> src/day6.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn a() {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_coords`
[INFO] [stderr]   --> src/day6.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn get_coords() -> Vec<(usize, usize)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_closest`
[INFO] [stderr]   --> src/day6.rs:58:1
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn find_closest(coords: &Vec<(usize, usize)>, target: &(usize, usize)) -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.87s
[INFO] running `"docker" "inspect" "4eccbc57aced0dc38d72512e5190408ae0c8cf938ace4537e4b4f18234938ce9"`
[INFO] running `"docker" "rm" "-f" "4eccbc57aced0dc38d72512e5190408ae0c8cf938ace4537e4b4f18234938ce9"`
[INFO] [stdout] 4eccbc57aced0dc38d72512e5190408ae0c8cf938ace4537e4b4f18234938ce9
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 92bda5a7328ca7895824a2fb0567cbe50835964ff12911debed1567502ceeae4
[INFO] running `"docker" "start" "-a" "92bda5a7328ca7895824a2fb0567cbe50835964ff12911debed1567502ceeae4"`
[INFO] [stderr]    Compiling aoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `coords`
[INFO] [stderr]   --> src/day6.rs:58:17
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn find_closest(coords: &Vec<(usize, usize)>, target: &(usize, usize)) -> usize {
[INFO] [stderr]    |                 ^^^^^^ help: consider prefixing with an underscore: `_coords`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target`
[INFO] [stderr]   --> src/day6.rs:58:47
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn find_closest(coords: &Vec<(usize, usize)>, target: &(usize, usize)) -> usize {
[INFO] [stderr]    |                                               ^^^^^^ help: consider prefixing with an underscore: `_target`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day1.rs:21:11
[INFO] [stderr]    |
[INFO] [stderr] 21 |       for mut line in split {
[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/day1.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |         for mut line in split {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `a`
[INFO] [stderr]  --> src/day1.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn a() {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `b`
[INFO] [stderr]   --> src/day1.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn b() {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `a`
[INFO] [stderr]  --> src/day2.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn a() {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `b`
[INFO] [stderr]   --> src/day2.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn b() {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `only_one_difference`
[INFO] [stderr]   --> src/day2.rs:57:1
[INFO] [stderr]    |
[INFO] [stderr] 57 | fn only_one_difference(s1: &str, s2: &str) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `a`
[INFO] [stderr]   --> src/day3.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn a() {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_claim`
[INFO] [stderr]   --> src/day3.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | / fn check_claim(
[INFO] [stderr] 60 | |   x: &usize,
[INFO] [stderr] 61 | |   y: &usize,
[INFO] [stderr] 62 | |   w: &usize,
[INFO] [stderr] ...  |
[INFO] [stderr] 77 | |   return uncontested;
[INFO] [stderr] 78 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `a`
[INFO] [stderr]   --> src/day4.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn a() {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `a`
[INFO] [stderr]  --> src/day5.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn a() {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `b`
[INFO] [stderr]   --> src/day5.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn b() {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `collapse_bytes`
[INFO] [stderr]   --> src/day5.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn collapse_bytes(bytes: &Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `collapse_bytes_loop`
[INFO] [stderr]   --> src/day5.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn collapse_bytes_loop(bytes: Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `a`
[INFO] [stderr]  --> src/day6.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn a() {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_coords`
[INFO] [stderr]   --> src/day6.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn get_coords() -> Vec<(usize, usize)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_closest`
[INFO] [stderr]   --> src/day6.rs:58:1
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn find_closest(coords: &Vec<(usize, usize)>, target: &(usize, usize)) -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `"docker" "inspect" "92bda5a7328ca7895824a2fb0567cbe50835964ff12911debed1567502ceeae4"`
[INFO] running `"docker" "rm" "-f" "92bda5a7328ca7895824a2fb0567cbe50835964ff12911debed1567502ceeae4"`
[INFO] [stdout] 92bda5a7328ca7895824a2fb0567cbe50835964ff12911debed1567502ceeae4
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 117ac4ab8ff68bfac163496b43f8862fa8c48883bfd4e2f6a643ea96790e81c7
[INFO] running `"docker" "start" "-a" "117ac4ab8ff68bfac163496b43f8862fa8c48883bfd4e2f6a643ea96790e81c7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/aoc-b5bf57c52d8c6f1f
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "117ac4ab8ff68bfac163496b43f8862fa8c48883bfd4e2f6a643ea96790e81c7"`
[INFO] running `"docker" "rm" "-f" "117ac4ab8ff68bfac163496b43f8862fa8c48883bfd4e2f6a643ea96790e81c7"`
[INFO] [stdout] 117ac4ab8ff68bfac163496b43f8862fa8c48883bfd4e2f6a643ea96790e81c7