[INFO] updating cached repository sts10/advent-of-code-2018 [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/sts10/advent-of-code-2018 [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/sts10/advent-of-code-2018" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/sts10/advent-of-code-2018"` [INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/sts10/advent-of-code-2018'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/sts10/advent-of-code-2018" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/sts10/advent-of-code-2018"` [INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/sts10/advent-of-code-2018'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 749149d5dd3fec7f50af6c186c64fae199e3643b [INFO] sha for GitHub repo sts10/advent-of-code-2018: 749149d5dd3fec7f50af6c186c64fae199e3643b [INFO] validating manifest of sts10/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 sts10/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 sts10/advent-of-code-2018 [INFO] finished frobbing sts10/advent-of-code-2018 [INFO] frobbed toml for sts10/advent-of-code-2018 written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/sts10/advent-of-code-2018/Cargo.toml [INFO] started frobbing sts10/advent-of-code-2018 [INFO] finished frobbing sts10/advent-of-code-2018 [INFO] frobbed toml for sts10/advent-of-code-2018 written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/sts10/advent-of-code-2018/Cargo.toml [INFO] crate sts10/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 sts10/advent-of-code-2018 against try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a for pr-58592 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-1/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/sts10/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" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] e8c7c84388ed84e9727eef59921d8737d976b0a656c557770d39443e355c7b5e [INFO] running `"docker" "start" "-a" "e8c7c84388ed84e9727eef59921d8737d976b0a656c557770d39443e355c7b5e"` [INFO] [stderr] Checking chrono v0.4.6 [INFO] [stderr] Checking advent-of-code-2018-reorganized v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable `the_char_to_remove_that_resulted_in_shortest_polymer_result` is assigned to, but never used [INFO] [stderr] --> src/bin/my_slow_day05.rs:19:13 [INFO] [stderr] | [INFO] [stderr] 19 | let mut the_char_to_remove_that_resulted_in_shortest_polymer_result: char; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] = note: consider using `_the_char_to_remove_that_resulted_in_shortest_polymer_result` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `the_char_to_remove_that_resulted_in_shortest_polymer_result` is never read [INFO] [stderr] --> src/bin/my_slow_day05.rs:45:13 [INFO] [stderr] | [INFO] [stderr] 45 | the_char_to_remove_that_resulted_in_shortest_polymer_result = *char_to_remove; [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: `indexes_to_remove` [INFO] [stderr] --> src/bin/my_slow_day05.rs:60:17 [INFO] [stderr] | [INFO] [stderr] 60 | let mut indexes_to_remove: Vec = vec![]; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_indexes_to_remove` [INFO] [stderr] [INFO] [stderr] warning: variable `the_char_to_remove_that_resulted_in_shortest_polymer_result` is assigned to, but never used [INFO] [stderr] --> src/bin/my_slow_day05.rs:19:13 [INFO] [stderr] | [INFO] [stderr] 19 | let mut the_char_to_remove_that_resulted_in_shortest_polymer_result: char; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] = note: consider using `_the_char_to_remove_that_resulted_in_shortest_polymer_result` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `the_char_to_remove_that_resulted_in_shortest_polymer_result` is never read [INFO] [stderr] --> src/bin/my_slow_day05.rs:45:13 [INFO] [stderr] | [INFO] [stderr] 45 | the_char_to_remove_that_resulted_in_shortest_polymer_result = *char_to_remove; [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: `indexes_to_remove` [INFO] [stderr] --> src/bin/my_slow_day05.rs:60:17 [INFO] [stderr] | [INFO] [stderr] 60 | let mut indexes_to_remove: Vec = vec![]; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_indexes_to_remove` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/my_slow_day05.rs:60:13 [INFO] [stderr] | [INFO] [stderr] 60 | let mut indexes_to_remove: Vec = vec![]; [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/bin/my_slow_day05.rs:60:13 [INFO] [stderr] | [INFO] [stderr] 60 | let mut indexes_to_remove: Vec = vec![]; [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: function `returns_None_if_more_than_one_character_off` should have a snake case name [INFO] [stderr] --> src/bin/day02.rs:144:4 [INFO] [stderr] | [INFO] [stderr] 144 | fn returns_None_if_more_than_one_character_off() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `returns_none_if_more_than_one_character_off` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: function `returns_None_if_exact_match` should have a snake case name [INFO] [stderr] --> src/bin/day02.rs:155:4 [INFO] [stderr] | [INFO] [stderr] 155 | fn returns_None_if_exact_match() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `returns_none_if_exact_match` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `guards` [INFO] [stderr] --> src/bin/day04_bad_attempt.rs:39:13 [INFO] [stderr] | [INFO] [stderr] 39 | let mut guards: HashMap = HashMap::new(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_guards` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/day04_bad_attempt.rs:39:9 [INFO] [stderr] | [INFO] [stderr] 39 | let mut guards: HashMap = HashMap::new(); [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: unused variable: `new_grid` [INFO] [stderr] --> src/bin/day06.rs:32:21 [INFO] [stderr] | [INFO] [stderr] 32 | let new_grid = spread(x, y, grid); [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_new_grid` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `square` is never read [INFO] [stderr] --> src/bin/day06.rs:51:20 [INFO] [stderr] | [INFO] [stderr] 51 | "." => square = sign, [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] error[E0384]: cannot assign twice to immutable variable `square` [INFO] [stderr] --> src/bin/day06.rs:51:20 [INFO] [stderr] | [INFO] [stderr] 49 | for square in nine_squares { [INFO] [stderr] | ------ first assignment to `square` [INFO] [stderr] 50 | match square { [INFO] [stderr] 51 | "." => square = sign, [INFO] [stderr] | ^^^^^^^^^^^^^ cannot assign twice to immutable variable [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0384`. [INFO] [stderr] error: Could not compile `advent-of-code-2018-reorganized`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: unused variable: `new_grid` [INFO] [stderr] --> src/bin/day06.rs:32:21 [INFO] [stderr] | [INFO] [stderr] 32 | let new_grid = spread(x, y, grid); [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_new_grid` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `square` is never read [INFO] [stderr] --> src/bin/day06.rs:51:20 [INFO] [stderr] | [INFO] [stderr] 51 | "." => square = sign, [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] error[E0384]: cannot assign twice to immutable variable `square` [INFO] [stderr] --> src/bin/day06.rs:51:20 [INFO] [stderr] | [INFO] [stderr] 49 | for square in nine_squares { [INFO] [stderr] | ------ first assignment to `square` [INFO] [stderr] 50 | match square { [INFO] [stderr] 51 | "." => square = sign, [INFO] [stderr] | ^^^^^^^^^^^^^ cannot assign twice to immutable variable [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0384`. [INFO] [stderr] error: Could not compile `advent-of-code-2018-reorganized`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: unused variable: `guards` [INFO] [stderr] --> src/bin/day04_bad_attempt.rs:39:13 [INFO] [stderr] | [INFO] [stderr] 39 | let mut guards: HashMap = HashMap::new(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_guards` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/day04_bad_attempt.rs:39:9 [INFO] [stderr] | [INFO] [stderr] 39 | let mut guards: HashMap = HashMap::new(); [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] error: build failed [INFO] running `"docker" "inspect" "e8c7c84388ed84e9727eef59921d8737d976b0a656c557770d39443e355c7b5e"` [INFO] running `"docker" "rm" "-f" "e8c7c84388ed84e9727eef59921d8737d976b0a656c557770d39443e355c7b5e"` [INFO] [stdout] e8c7c84388ed84e9727eef59921d8737d976b0a656c557770d39443e355c7b5e