[INFO] updating cached repository brandonedens/advent-2018 [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/brandonedens/advent-2018 [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/brandonedens/advent-2018" "work/ex/clippy-test-run/sources/stable/gh/brandonedens/advent-2018"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/brandonedens/advent-2018'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/brandonedens/advent-2018" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/brandonedens/advent-2018"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/brandonedens/advent-2018'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 7efa2aa3c7c6280e4e4b46a386974cfe53e5dfeb [INFO] sha for GitHub repo brandonedens/advent-2018: 7efa2aa3c7c6280e4e4b46a386974cfe53e5dfeb [INFO] validating manifest of brandonedens/advent-2018 on toolchain stable [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of brandonedens/advent-2018 on toolchain stable+rustflags=-Dclippy::into_iter_on_array [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing brandonedens/advent-2018 [INFO] finished frobbing brandonedens/advent-2018 [INFO] frobbed toml for brandonedens/advent-2018 written to work/ex/clippy-test-run/sources/stable/gh/brandonedens/advent-2018/Cargo.toml [INFO] started frobbing brandonedens/advent-2018 [INFO] finished frobbing brandonedens/advent-2018 [INFO] frobbed toml for brandonedens/advent-2018 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/brandonedens/advent-2018/Cargo.toml [INFO] crate brandonedens/advent-2018 has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] linting brandonedens/advent-2018 against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/brandonedens/advent-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" "+stable" "clippy" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 78ec2365b9ddca979c253fbc00d88484ef8788afce9b32851d9c545ec8e30c4c [INFO] running `"docker" "start" "-a" "78ec2365b9ddca979c253fbc00d88484ef8788afce9b32851d9c545ec8e30c4c"` [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Checking levenshtein v1.0.3 [INFO] [stderr] Checking chrono v0.4.6 [INFO] [stderr] Checking advent-2018 v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/bin/day3.rs:43:17 [INFO] [stderr] | [INFO] [stderr] 43 | Coord { x: x, y: y } [INFO] [stderr] | ^^^^ help: replace it with: `x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/bin/day3.rs:43:23 [INFO] [stderr] | [INFO] [stderr] 43 | Coord { x: x, y: y } [INFO] [stderr] | ^^^^ help: replace it with: `y` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/bin/day2.rs:63:17 [INFO] [stderr] | [INFO] [stderr] 63 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::println_empty_string)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/bin/day4.rs:71:13 [INFO] [stderr] | [INFO] [stderr] 71 | datetime: datetime, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: replace it with: `datetime` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/bin/day4.rs:72:13 [INFO] [stderr] | [INFO] [stderr] 72 | behavior: behavior, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: replace it with: `behavior` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/bin/day6.rs:39:17 [INFO] [stderr] | [INFO] [stderr] 39 | Coord { x: x, y: y } [INFO] [stderr] | ^^^^ help: replace it with: `x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/bin/day6.rs:39:23 [INFO] [stderr] | [INFO] [stderr] 39 | Coord { x: x, y: y } [INFO] [stderr] | ^^^^ help: replace it with: `y` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/bin/day4.rs:71:13 [INFO] [stderr] | [INFO] [stderr] 71 | datetime: datetime, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: replace it with: `datetime` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/bin/day4.rs:72:13 [INFO] [stderr] | [INFO] [stderr] 72 | behavior: behavior, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: replace it with: `behavior` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/bin/day3.rs:43:17 [INFO] [stderr] | [INFO] [stderr] 43 | Coord { x: x, y: y } [INFO] [stderr] | ^^^^ help: replace it with: `x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/bin/day3.rs:43:23 [INFO] [stderr] | [INFO] [stderr] 43 | Coord { x: x, y: y } [INFO] [stderr] | ^^^^ help: replace it with: `y` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: length comparison to zero [INFO] [stderr] --> src/bin/day5.rs:26:12 [INFO] [stderr] | [INFO] [stderr] 26 | if v.len() == 0 { [INFO] [stderr] | ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `v.is_empty()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::len_zero)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero [INFO] [stderr] [INFO] [stderr] warning: length comparison to zero [INFO] [stderr] --> src/bin/day5.rs:65:16 [INFO] [stderr] | [INFO] [stderr] 65 | if v.len() == 0 { [INFO] [stderr] | ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `v.is_empty()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/bin/day6.rs:39:17 [INFO] [stderr] | [INFO] [stderr] 39 | Coord { x: x, y: y } [INFO] [stderr] | ^^^^ help: replace it with: `x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/bin/day6.rs:39:23 [INFO] [stderr] | [INFO] [stderr] 39 | Coord { x: x, y: y } [INFO] [stderr] | ^^^^ help: replace it with: `y` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: length comparison to zero [INFO] [stderr] --> src/bin/day5.rs:26:12 [INFO] [stderr] | [INFO] [stderr] 26 | if v.len() == 0 { [INFO] [stderr] | ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `v.is_empty()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::len_zero)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero [INFO] [stderr] [INFO] [stderr] warning: length comparison to zero [INFO] [stderr] --> src/bin/day5.rs:65:16 [INFO] [stderr] | [INFO] [stderr] 65 | if v.len() == 0 { [INFO] [stderr] | ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `v.is_empty()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/bin/day2.rs:63:17 [INFO] [stderr] | [INFO] [stderr] 63 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::println_empty_string)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/bin/day3.rs:165:9 [INFO] [stderr] | [INFO] [stderr] 165 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/bin/day3.rs:154:62 [INFO] [stderr] | [INFO] [stderr] 154 | if let Some((i, _)) = overlaps.iter().enumerate().find(|(i, b)| !*b) { [INFO] [stderr] | ^ help: consider using `_i` instead [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/bin/day3.rs:42:5 [INFO] [stderr] | [INFO] [stderr] 42 | fn new(x: usize, y: usize) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/bin/day3.rs:154:62 [INFO] [stderr] | [INFO] [stderr] 154 | if let Some((i, _)) = overlaps.iter().enumerate().find(|(i, b)| !*b) { [INFO] [stderr] | ^ help: consider using `_i` instead [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/bin/day6.rs:107:21 [INFO] [stderr] | [INFO] [stderr] 107 | fn usize_to_char(v: &usize) -> char { [INFO] [stderr] | ^^^^^^ help: consider passing by value instead: `usize` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them [INFO] [stderr] --> src/bin/day6.rs:110:14 [INFO] [stderr] | [INFO] [stderr] 110 | (v + ('A' as u8)) as char [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::char_lit_as_u8)] on by default [INFO] [stderr] = help: Consider using a byte literal instead: [INFO] [stderr] b'A' [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8 [INFO] [stderr] [INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them [INFO] [stderr] --> src/bin/day6.rs:112:21 [INFO] [stderr] | [INFO] [stderr] 112 | ((v - 26) + ('a' as u8)) as char [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: Consider using a byte literal instead: [INFO] [stderr] b'a' [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8 [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/bin/day3.rs:42:5 [INFO] [stderr] | [INFO] [stderr] 42 | fn new(x: usize, y: usize) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices. [INFO] [stderr] --> src/bin/day4.rs:95:32 [INFO] [stderr] | [INFO] [stderr] 95 | fn compute_guard_sleep(events: &Vec) -> HashMap> { [INFO] [stderr] | ^^^^^^^^^^^ help: change this to: `&[Event]` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::ptr_arg)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg [INFO] [stderr] [INFO] [stderr] warning: this loop could be written as a `while let` loop [INFO] [stderr] --> src/bin/day4.rs:100:5 [INFO] [stderr] | [INFO] [stderr] 100 | / loop { [INFO] [stderr] 101 | | if let Some(event) = it.next() { [INFO] [stderr] 102 | | match event.behavior { [INFO] [stderr] 103 | | Behavior::BeginsShift(id) => { [INFO] [stderr] ... | [INFO] [stderr] 122 | | } [INFO] [stderr] 123 | | } [INFO] [stderr] | |_____^ help: try: `while let Some(event) = it.next() { .. }` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::while_let_loop)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop [INFO] [stderr] [INFO] [stderr] warning: use of `or_insert` followed by a function call [INFO] [stderr] --> src/bin/day4.rs:105:38 [INFO] [stderr] | [INFO] [stderr] 105 | guards.entry(id).or_insert(Vec::new()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(Vec::new)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::or_fun_call)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call [INFO] [stderr] [INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices. [INFO] [stderr] --> src/bin/day4.rs:128:31 [INFO] [stderr] | [INFO] [stderr] 128 | fn compute_minute_freq(sleep: &Vec) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^ help: change this to: `&[Sleep]` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg [INFO] [stderr] [INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise [INFO] [stderr] --> src/bin/day4.rs:163:24 [INFO] [stderr] | [INFO] [stderr] 163 | let sleepy_guard = guards.get(&sleepy_guard_id).unwrap(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&guards[&sleepy_guard_id]` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::get_unwrap)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap [INFO] [stderr] [INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices. [INFO] [stderr] --> src/bin/day4.rs:95:32 [INFO] [stderr] | [INFO] [stderr] 95 | fn compute_guard_sleep(events: &Vec) -> HashMap> { [INFO] [stderr] | ^^^^^^^^^^^ help: change this to: `&[Event]` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::ptr_arg)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg [INFO] [stderr] [INFO] [stderr] warning: this loop could be written as a `while let` loop [INFO] [stderr] --> src/bin/day4.rs:100:5 [INFO] [stderr] | [INFO] [stderr] 100 | / loop { [INFO] [stderr] 101 | | if let Some(event) = it.next() { [INFO] [stderr] 102 | | match event.behavior { [INFO] [stderr] 103 | | Behavior::BeginsShift(id) => { [INFO] [stderr] ... | [INFO] [stderr] 122 | | } [INFO] [stderr] 123 | | } [INFO] [stderr] | |_____^ help: try: `while let Some(event) = it.next() { .. }` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::while_let_loop)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop [INFO] [stderr] [INFO] [stderr] warning: use of `or_insert` followed by a function call [INFO] [stderr] --> src/bin/day4.rs:105:38 [INFO] [stderr] | [INFO] [stderr] 105 | guards.entry(id).or_insert(Vec::new()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(Vec::new)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::or_fun_call)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call [INFO] [stderr] [INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices. [INFO] [stderr] --> src/bin/day4.rs:128:31 [INFO] [stderr] | [INFO] [stderr] 128 | fn compute_minute_freq(sleep: &Vec) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^ help: change this to: `&[Sleep]` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg [INFO] [stderr] [INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise [INFO] [stderr] --> src/bin/day4.rs:163:24 [INFO] [stderr] | [INFO] [stderr] 163 | let sleepy_guard = guards.get(&sleepy_guard_id).unwrap(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&guards[&sleepy_guard_id]` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::get_unwrap)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/bin/day6.rs:107:21 [INFO] [stderr] | [INFO] [stderr] 107 | fn usize_to_char(v: &usize) -> char { [INFO] [stderr] | ^^^^^^ help: consider passing by value instead: `usize` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them [INFO] [stderr] --> src/bin/day6.rs:110:14 [INFO] [stderr] | [INFO] [stderr] 110 | (v + ('A' as u8)) as char [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::char_lit_as_u8)] on by default [INFO] [stderr] = help: Consider using a byte literal instead: [INFO] [stderr] b'A' [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8 [INFO] [stderr] [INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them [INFO] [stderr] --> src/bin/day6.rs:112:21 [INFO] [stderr] | [INFO] [stderr] 112 | ((v - 26) + ('a' as u8)) as char [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: Consider using a byte literal instead: [INFO] [stderr] b'a' [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8 [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.50s [INFO] running `"docker" "inspect" "78ec2365b9ddca979c253fbc00d88484ef8788afce9b32851d9c545ec8e30c4c"` [INFO] running `"docker" "rm" "-f" "78ec2365b9ddca979c253fbc00d88484ef8788afce9b32851d9c545ec8e30c4c"` [INFO] [stdout] 78ec2365b9ddca979c253fbc00d88484ef8788afce9b32851d9c545ec8e30c4c