[INFO] cloning repository https://github.com/luryus/aoc-2019-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luryus/aoc-2019-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluryus%2Faoc-2019-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluryus%2Faoc-2019-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 263e037262d2d07f3c8233e5b0102fbf088d0db0
[INFO] checking luryus/aoc-2019-rust against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluryus%2Faoc-2019-rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luryus/aoc-2019-rust on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luryus/aoc-2019-rust
[INFO] finished tweaking git repo https://github.com/luryus/aoc-2019-rust
[INFO] tweaked toml for git repo https://github.com/luryus/aoc-2019-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/luryus/aoc-2019-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fraction v0.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c3a994114d96af45b65cbaea6254b79b5e0d5e7b38f1726625d27e1e0cec2ec
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0c3a994114d96af45b65cbaea6254b79b5e0d5e7b38f1726625d27e1e0cec2ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c3a994114d96af45b65cbaea6254b79b5e0d5e7b38f1726625d27e1e0cec2ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c3a994114d96af45b65cbaea6254b79b5e0d5e7b38f1726625d27e1e0cec2ec", kill_on_drop: false }`
[INFO] [stdout] 0c3a994114d96af45b65cbaea6254b79b5e0d5e7b38f1726625d27e1e0cec2ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9650efecc32dbf6548eee21e14313c7f0045c13823254132babf73f5a9d958dc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9650efecc32dbf6548eee21e14313c7f0045c13823254132babf73f5a9d958dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking fraction v0.6.2
[INFO] [stderr]     Checking aoc2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:179:24
[INFO] [stdout]     |
[INFO] [stdout] 179 |         let coord = if (x == 0 || maze[y][x-1] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:194:24
[INFO] [stdout]     |
[INFO] [stdout] 194 |         let coord = if (x == w-1 || maze[y][x+1] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:209:24
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let coord = if (y == 0 || maze[y-1][x] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:224:24
[INFO] [stdout]     |
[INFO] [stdout] 224 |         let coord = if (y == h-1 || maze[y+1][x] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:273:24
[INFO] [stdout]     |
[INFO] [stdout] 273 |         let coord = if (x == w-1 || maze[y][x+1] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:286:24
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let coord = if (y == 0 || maze[y-1][x] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:299:24
[INFO] [stdout]     |
[INFO] [stdout] 299 |         let coord = if (y == h-1 || maze[y+1][x] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeMap`, `BinaryHeap`
[INFO] [stdout]  --> src/bin/18.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{BTreeSet, BTreeMap, HashMap, VecDeque, HashSet, BinaryHeap};
[INFO] [stdout]   |                                  ^^^^^^^^                              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Reverse`
[INFO] [stdout]  --> src/bin/18.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::cmp::{Ordering, Reverse};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `turn_left`
[INFO] [stdout]   --> src/bin/17.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn turn_left(dir: Dir) -> Dir {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num_integer::lcm`
[INFO] [stdout]  --> src/bin/16.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use num_integer::lcm;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeMap`
[INFO] [stdout]  --> src/bin/23.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::{BTreeMap, VecDeque};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev`
[INFO] [stdout]    --> src/bin/18.rs:159:57
[INFO] [stdout]     |
[INFO] [stdout] 159 |     while let Some(QueueItem(coords, d, collected_keys, prev)) = queue.pop_front() {
[INFO] [stdout]     |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_prev`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeMap`, `BinaryHeap`
[INFO] [stdout]  --> src/bin/18.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{BTreeSet, BTreeMap, HashMap, VecDeque, HashSet, BinaryHeap};
[INFO] [stdout]   |                                  ^^^^^^^^                              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Reverse`
[INFO] [stdout]  --> src/bin/18.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::cmp::{Ordering, Reverse};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/bin/14.rs:105:6
[INFO] [stdout]     |
[INFO] [stdout] 105 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev`
[INFO] [stdout]    --> src/bin/18.rs:159:57
[INFO] [stdout]     |
[INFO] [stdout] 159 |     while let Some(QueueItem(coords, d, collected_keys, prev)) = queue.pop_front() {
[INFO] [stdout]     |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_prev`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:179:24
[INFO] [stdout]     |
[INFO] [stdout] 179 |         let coord = if (x == 0 || maze[y][x-1] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:194:24
[INFO] [stdout]     |
[INFO] [stdout] 194 |         let coord = if (x == w-1 || maze[y][x+1] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:209:24
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let coord = if (y == 0 || maze[y-1][x] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:224:24
[INFO] [stdout]     |
[INFO] [stdout] 224 |         let coord = if (y == h-1 || maze[y+1][x] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:273:24
[INFO] [stdout]     |
[INFO] [stdout] 273 |         let coord = if (x == w-1 || maze[y][x+1] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:286:24
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let coord = if (y == 0 || maze[y-1][x] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/20.rs:299:24
[INFO] [stdout]     |
[INFO] [stdout] 299 |         let coord = if (y == h-1 || maze[y+1][x] == None) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `turn_left`
[INFO] [stdout]   --> src/bin/17.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn turn_left(dir: Dir) -> Dir {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeMap`
[INFO] [stdout]  --> src/bin/23.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::{BTreeMap, VecDeque};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/bin/14.rs:105:6
[INFO] [stdout]     |
[INFO] [stdout] 105 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num_integer::lcm`
[INFO] [stdout]  --> src/bin/16.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use num_integer::lcm;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.64s
[INFO] running `Command { std: "docker" "inspect" "9650efecc32dbf6548eee21e14313c7f0045c13823254132babf73f5a9d958dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9650efecc32dbf6548eee21e14313c7f0045c13823254132babf73f5a9d958dc", kill_on_drop: false }`
[INFO] [stdout] 9650efecc32dbf6548eee21e14313c7f0045c13823254132babf73f5a9d958dc