[INFO] updating cached repository alightgoesout/advent2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/alightgoesout/advent2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/alightgoesout/advent2018" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/alightgoesout/advent2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/alightgoesout/advent2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alightgoesout/advent2018" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/alightgoesout/advent2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/alightgoesout/advent2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cb18b2d76519060763a897f3585ac0b14b45932d
[INFO] sha for GitHub repo alightgoesout/advent2018: cb18b2d76519060763a897f3585ac0b14b45932d
[INFO] validating manifest of alightgoesout/advent2018 on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of alightgoesout/advent2018 on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing alightgoesout/advent2018
[INFO] finished frobbing alightgoesout/advent2018
[INFO] frobbed toml for alightgoesout/advent2018 written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/alightgoesout/advent2018/Cargo.toml
[INFO] started frobbing alightgoesout/advent2018
[INFO] finished frobbing alightgoesout/advent2018
[INFO] frobbed toml for alightgoesout/advent2018 written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/alightgoesout/advent2018/Cargo.toml
[INFO] crate alightgoesout/advent2018 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking alightgoesout/advent2018 against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-0/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/alightgoesout/advent2018:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] aace0abf461b65bf9518c2abd6c179717f3a8f52d42900b1bf7f359c75c4e7b5
[INFO] running `"docker" "start" "-a" "aace0abf461b65bf9518c2abd6c179717f3a8f52d42900b1bf7f359c75c4e7b5"`
[INFO] [stderr]     Checking advent v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day2/find_similar_ids.rs:14:33
[INFO] [stderr]    |
[INFO] [stderr] 14 |                             let mut splitted_id = splitted_ids.get(i);
[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/day2/find_similar_ids.rs:15:33
[INFO] [stderr]    |
[INFO] [stderr] 15 |                             let mut afters = splitted_id.get(before);
[INFO] [stderr]    |                                 ----^^^^^^
[INFO] [stderr]    |                                 |
[INFO] [stderr]    |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `claim_regex` should have an upper case name
[INFO] [stderr]   --> src/day3/claim.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |     static ref claim_regex: Regex =
[INFO] [stderr]    |                ^^^^^^^^^^^ help: convert the identifier to upper case: `CLAIM_REGEX`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day2/find_similar_ids.rs:14:33
[INFO] [stderr]    |
[INFO] [stderr] 14 |                             let mut splitted_id = splitted_ids.get(i);
[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/day2/find_similar_ids.rs:15:33
[INFO] [stderr]    |
[INFO] [stderr] 15 |                             let mut afters = splitted_id.get(before);
[INFO] [stderr]    |                                 ----^^^^^^
[INFO] [stderr]    |                                 |
[INFO] [stderr]    |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `claim_regex` should have an upper case name
[INFO] [stderr]   --> src/day3/claim.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |     static ref claim_regex: Regex =
[INFO] [stderr]    |                ^^^^^^^^^^^ help: convert the identifier to upper case: `CLAIM_REGEX`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "aace0abf461b65bf9518c2abd6c179717f3a8f52d42900b1bf7f359c75c4e7b5"`
[INFO] running `"docker" "rm" "-f" "aace0abf461b65bf9518c2abd6c179717f3a8f52d42900b1bf7f359c75c4e7b5"`
[INFO] [stdout] aace0abf461b65bf9518c2abd6c179717f3a8f52d42900b1bf7f359c75c4e7b5