[INFO] updating cached repository nambrosini/advent-of-code
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nambrosini/advent-of-code
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nambrosini/advent-of-code" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/nambrosini/advent-of-code"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/nambrosini/advent-of-code'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nambrosini/advent-of-code" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/nambrosini/advent-of-code"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/nambrosini/advent-of-code'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5ec62666b5907c05c0b416116b07a5b4d8cdc13a
[INFO] sha for GitHub repo nambrosini/advent-of-code: 5ec62666b5907c05c0b416116b07a5b4d8cdc13a
[INFO] validating manifest of nambrosini/advent-of-code on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nambrosini/advent-of-code on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nambrosini/advent-of-code
[INFO] finished frobbing nambrosini/advent-of-code
[INFO] frobbed toml for nambrosini/advent-of-code written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/nambrosini/advent-of-code/Cargo.toml
[INFO] started frobbing nambrosini/advent-of-code
[INFO] finished frobbing nambrosini/advent-of-code
[INFO] frobbed toml for nambrosini/advent-of-code written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/nambrosini/advent-of-code/Cargo.toml
[INFO] crate nambrosini/advent-of-code already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking nambrosini/advent-of-code against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/nambrosini/advent-of-code:/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5111f03fbb5272218524f6ce16268bd0877d4a938a0fbe1ba9082a42066ad9f0
[INFO] running `"docker" "start" "-a" "5111f03fbb5272218524f6ce16268bd0877d4a938a0fbe1ba9082a42066ad9f0"`
[INFO] [stderr]     Checking memchr v2.1.3
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking advent-of-code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day3/part1.rs:17:25
[INFO] [stderr]    |
[INFO] [stderr] 17 |                     let mut v = &mut fabric.get_mut((in_tuple.2 + i) as usize).unwrap();
[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/day3/part1.rs:21:25
[INFO] [stderr]    |
[INFO] [stderr] 21 |                     let mut v = &mut fabric.get_mut((in_tuple.2 + i) as usize).unwrap();
[INFO] [stderr]    |                         ----^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calc_frequency`
[INFO] [stderr]  --> src/day1/part1.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn calc_frequency(numbers: Vec<i32>) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_repetition`
[INFO] [stderr]  --> src/day1/part2.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn find_repetition(numbers: Vec<i32>) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_checksum`
[INFO] [stderr]  --> src/day2/part1.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn find_checksum(file_content: Vec<&str>) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NotFound`
[INFO] [stderr]  --> src/day2/part2.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     NotFound,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_common_letters`
[INFO] [stderr]  --> src/day2/part2.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn find_common_letters(input: &str) -> Result<String, Errors> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_word_difference`
[INFO] [stderr]   --> src/day2/part2.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn count_word_difference(str1: &str, str2: &str) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_word_without_differences`
[INFO] [stderr]   --> src/day2/part2.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn get_word_without_differences(str1: &str, str2: &str) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `GuardTime`
[INFO] [stderr]  --> src/day4/mod.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct GuardTime {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day3/part1.rs:17:25
[INFO] [stderr]    |
[INFO] [stderr] 17 |                     let mut v = &mut fabric.get_mut((in_tuple.2 + i) as usize).unwrap();
[INFO] [stderr]    |                         ----^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr] warning: structure field `dateTime` should have a snake case name
[INFO] [stderr]  --> src/day4/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     dateTime: Utc,
[INFO] [stderr]   |     ^^^^^^^^ help: convert the identifier to snake case: `date_time`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day3/part1.rs:21:25
[INFO] [stderr]    |
[INFO] [stderr] 21 |                     let mut v = &mut fabric.get_mut((in_tuple.2 + i) as usize).unwrap();
[INFO] [stderr]    |                         ----^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `GuardTime`
[INFO] [stderr]  --> src/day4/mod.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct GuardTime {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `dateTime` should have a snake case name
[INFO] [stderr]  --> src/day4/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     dateTime: Utc,
[INFO] [stderr]   |     ^^^^^^^^ help: convert the identifier to snake case: `date_time`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.56s
[INFO] running `"docker" "inspect" "5111f03fbb5272218524f6ce16268bd0877d4a938a0fbe1ba9082a42066ad9f0"`
[INFO] running `"docker" "rm" "-f" "5111f03fbb5272218524f6ce16268bd0877d4a938a0fbe1ba9082a42066ad9f0"`
[INFO] [stdout] 5111f03fbb5272218524f6ce16268bd0877d4a938a0fbe1ba9082a42066ad9f0