[INFO] updating cached repository shaurya0/advent_of_code_2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shaurya0/advent_of_code_2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shaurya0/advent_of_code_2018" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/shaurya0/advent_of_code_2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/shaurya0/advent_of_code_2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shaurya0/advent_of_code_2018" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/shaurya0/advent_of_code_2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/shaurya0/advent_of_code_2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7f27725d199b1b51d6954cf60745e41ad664980b
[INFO] sha for GitHub repo shaurya0/advent_of_code_2018: 7f27725d199b1b51d6954cf60745e41ad664980b
[INFO] validating manifest of shaurya0/advent_of_code_2018 on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of shaurya0/advent_of_code_2018 on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing shaurya0/advent_of_code_2018
[INFO] finished frobbing shaurya0/advent_of_code_2018
[INFO] frobbed toml for shaurya0/advent_of_code_2018 written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/shaurya0/advent_of_code_2018/Cargo.toml
[INFO] started frobbing shaurya0/advent_of_code_2018
[INFO] finished frobbing shaurya0/advent_of_code_2018
[INFO] frobbed toml for shaurya0/advent_of_code_2018 written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/shaurya0/advent_of_code_2018/Cargo.toml
[INFO] crate shaurya0/advent_of_code_2018 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking shaurya0/advent_of_code_2018 against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-1/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/shaurya0/advent_of_code_2018:/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" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0730d703ef16f527b75b8190bb014b3d2059d4f887de19fec3461e02df13e35f
[INFO] running `"docker" "start" "-a" "0730d703ef16f527b75b8190bb014b3d2059d4f887de19fec3461e02df13e35f"`
[INFO] [stderr]     Checking advent_of_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Duration`, `NaiveDate`
[INFO] [stderr]  --> src/day4/day4.rs:8:29
[INFO] [stderr]   |
[INFO] [stderr] 8 | use chrono::{NaiveDateTime, NaiveDate, NaiveTime, Duration, Timelike};
[INFO] [stderr]   |                             ^^^^^^^^^             ^^^^^^^^
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]   --> src/day3/day3.rs:86:22
[INFO] [stderr]    |
[INFO] [stderr] 86 |                 Some(count) => unclaimed = true,
[INFO] [stderr]    |                      ^^^^^ help: consider prefixing with an underscore: `_count`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/day3/day3.rs:129:23
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 Some(&count) => print!("#"),
[INFO] [stderr]     |                       ^^^^^ help: consider prefixing with an underscore: `_count`
[INFO] [stderr] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `draw_grid`
[INFO] [stderr]    --> src/day3/day3.rs:120:1
[INFO] [stderr]     |
[INFO] [stderr] 120 | fn draw_grid(grid_description: &HashMap<Point, i32>, nx: u32, ny: u32){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Duration`, `NaiveDate`
[INFO] [stderr]  --> src/day4/day4.rs:8:29
[INFO] [stderr]   |
[INFO] [stderr] 8 | use chrono::{NaiveDateTime, NaiveDate, NaiveTime, Duration, Timelike};
[INFO] [stderr]   |                             ^^^^^^^^^             ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `guard_sleep_time`
[INFO] [stderr]   --> src/day4/day4.rs:97:13
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let mut guard_sleep_time: HashMap<u32, i64>
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_guard_sleep_time`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timestamp`
[INFO] [stderr]    --> src/day4/day4.rs:115:17
[INFO] [stderr]     |
[INFO] [stderr] 115 |             let timestamp = message.timestamp;
[INFO] [stderr]     |                 ^^^^^^^^^ help: consider prefixing with an underscore: `_timestamp`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day4/day4.rs:97:9
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let mut guard_sleep_time: HashMap<u32, i64>
[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: struct is never constructed: `TimestampedMessage`
[INFO] [stderr]   --> src/day4/day4.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | struct TimestampedMessage {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]   --> src/day3/day3.rs:86:22
[INFO] [stderr]    |
[INFO] [stderr] 86 |                 Some(count) => unclaimed = true,
[INFO] [stderr]    |                      ^^^^^ help: consider prefixing with an underscore: `_count`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/day3/day3.rs:129:23
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 Some(&count) => print!("#"),
[INFO] [stderr]     |                       ^^^^^ help: consider prefixing with an underscore: `_count`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `guard_sleep_time`
[INFO] [stderr]   --> src/day4/day4.rs:97:13
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let mut guard_sleep_time: HashMap<u32, i64>
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_guard_sleep_time`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timestamp`
[INFO] [stderr]    --> src/day4/day4.rs:115:17
[INFO] [stderr]     |
[INFO] [stderr] 115 |             let timestamp = message.timestamp;
[INFO] [stderr]     |                 ^^^^^^^^^ help: consider prefixing with an underscore: `_timestamp`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `draw_grid`
[INFO] [stderr]    --> src/day3/day3.rs:120:1
[INFO] [stderr]     |
[INFO] [stderr] 120 | fn draw_grid(grid_description: &HashMap<Point, i32>, nx: u32, ny: u32){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day4/day4.rs:97:9
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let mut guard_sleep_time: HashMap<u32, i64>
[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: struct is never constructed: `TimestampedMessage`
[INFO] [stderr]   --> src/day4/day4.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | struct TimestampedMessage {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "0730d703ef16f527b75b8190bb014b3d2059d4f887de19fec3461e02df13e35f"`
[INFO] running `"docker" "rm" "-f" "0730d703ef16f527b75b8190bb014b3d2059d4f887de19fec3461e02df13e35f"`
[INFO] [stdout] 0730d703ef16f527b75b8190bb014b3d2059d4f887de19fec3461e02df13e35f