[INFO] updating cached repository boylede/aoc2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/boylede/aoc2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/boylede/aoc2018" "work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/boylede/aoc2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/boylede/aoc2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/boylede/aoc2018" "work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/boylede/aoc2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/boylede/aoc2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d31ba687b2b0b9edae764991d8116681cfa72edd
[INFO] sha for GitHub repo boylede/aoc2018: d31ba687b2b0b9edae764991d8116681cfa72edd
[INFO] validating manifest of boylede/aoc2018 on toolchain master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of boylede/aoc2018 on toolchain try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing boylede/aoc2018
[INFO] finished frobbing boylede/aoc2018
[INFO] frobbed toml for boylede/aoc2018 written to work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/boylede/aoc2018/Cargo.toml
[INFO] started frobbing boylede/aoc2018
[INFO] finished frobbing boylede/aoc2018
[INFO] frobbed toml for boylede/aoc2018 written to work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/boylede/aoc2018/Cargo.toml
[INFO] crate boylede/aoc2018 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking boylede/aoc2018 against try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0 for pr-57321
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57321/worker-0/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/boylede/aoc2018:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3403fc099a2454ea494feefeb8cd30e6bc043e1af77f647667c14e64065c1db1
[INFO] running `"docker" "start" "-a" "3403fc099a2454ea494feefeb8cd30e6bc043e1af77f647667c14e64065c1db1"`
[INFO] [stderr]    Compiling crc32fast v1.1.0
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]     Checking libflate v0.1.19
[INFO] [stderr]     Checking hyper v0.12.16
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking reqwest v0.9.5
[INFO] [stderr]     Checking aoc2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/day6/mod.rs:117:12
[INFO] [stderr]     |
[INFO] [stderr] 117 |     } else if (distance == shortest_distance) {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/day6/mod.rs:117:12
[INFO] [stderr]     |
[INFO] [stderr] 117 |     } else if (distance == shortest_distance) {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]    --> src/day6/mod.rs:134:10
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]     |          ^^^^^ help: consider using `_lines` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent`
[INFO] [stderr]    --> src/day6/mod.rs:200:7
[INFO] [stderr]     |
[INFO] [stderr] 200 |         let parent = 0;
[INFO] [stderr]     |             ^^^^^^ help: consider using `_parent` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `distance`
[INFO] [stderr]    --> src/day6/mod.rs:201:7
[INFO] [stderr]     |
[INFO] [stderr] 201 |         let distance = 0;
[INFO] [stderr]     |             ^^^^^^^^ help: consider using `_distance` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]    --> src/day6/mod.rs:134:10
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn part2(lines: &Vec<String>) {
[INFO] [stderr]     |          ^^^^^ help: consider using `_lines` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent`
[INFO] [stderr]    --> src/day6/mod.rs:200:7
[INFO] [stderr]     |
[INFO] [stderr] 200 |         let parent = 0;
[INFO] [stderr]     |             ^^^^^^ help: consider using `_parent` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `distance`
[INFO] [stderr]    --> src/day6/mod.rs:201:7
[INFO] [stderr]     |
[INFO] [stderr] 201 |         let distance = 0;
[INFO] [stderr]     |             ^^^^^^^^ help: consider using `_distance` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day6/mod.rs:48:6
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let mut field = Grid::with_coordinates(&coordinates);
[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: variant is never constructed: `Unoccupied`
[INFO] [stderr]   --> src/day3/mod.rs:67:2
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Unoccupied,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `parent`
[INFO] [stderr]    --> src/day6/mod.rs:159:2
[INFO] [stderr]     |
[INFO] [stderr] 159 |     parent: i32,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `distance`
[INFO] [stderr]    --> src/day6/mod.rs:160:2
[INFO] [stderr]     |
[INFO] [stderr] 160 |     distance: i32,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cells`
[INFO] [stderr]    --> src/day6/mod.rs:164:2
[INFO] [stderr]     |
[INFO] [stderr] 164 |     cells: Vec<Position>,    // voronoi input points
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day6/mod.rs:48:6
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let mut field = Grid::with_coordinates(&coordinates);
[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: variant is never constructed: `Unoccupied`
[INFO] [stderr]   --> src/day3/mod.rs:67:2
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Unoccupied,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `parent`
[INFO] [stderr]    --> src/day6/mod.rs:159:2
[INFO] [stderr]     |
[INFO] [stderr] 159 |     parent: i32,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `distance`
[INFO] [stderr]    --> src/day6/mod.rs:160:2
[INFO] [stderr]     |
[INFO] [stderr] 160 |     distance: i32,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cells`
[INFO] [stderr]    --> src/day6/mod.rs:164:2
[INFO] [stderr]     |
[INFO] [stderr] 164 |     cells: Vec<Position>,    // voronoi input points
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.80s
[INFO] running `"docker" "inspect" "3403fc099a2454ea494feefeb8cd30e6bc043e1af77f647667c14e64065c1db1"`
[INFO] running `"docker" "rm" "-f" "3403fc099a2454ea494feefeb8cd30e6bc043e1af77f647667c14e64065c1db1"`
[INFO] [stdout] 3403fc099a2454ea494feefeb8cd30e6bc043e1af77f647667c14e64065c1db1