[INFO] updating cached repository ForsakenHarmony/adventofcode_2017
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ForsakenHarmony/adventofcode_2017
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ForsakenHarmony/adventofcode_2017" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/ForsakenHarmony/adventofcode_2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/ForsakenHarmony/adventofcode_2017'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ForsakenHarmony/adventofcode_2017" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/ForsakenHarmony/adventofcode_2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/ForsakenHarmony/adventofcode_2017'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c6c5b678a20360fd8253108630fbbe0133811920
[INFO] sha for GitHub repo ForsakenHarmony/adventofcode_2017: c6c5b678a20360fd8253108630fbbe0133811920
[INFO] validating manifest of ForsakenHarmony/adventofcode_2017 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 ForsakenHarmony/adventofcode_2017 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 ForsakenHarmony/adventofcode_2017
[INFO] finished frobbing ForsakenHarmony/adventofcode_2017
[INFO] frobbed toml for ForsakenHarmony/adventofcode_2017 written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/ForsakenHarmony/adventofcode_2017/Cargo.toml
[INFO] started frobbing ForsakenHarmony/adventofcode_2017
[INFO] finished frobbing ForsakenHarmony/adventofcode_2017
[INFO] frobbed toml for ForsakenHarmony/adventofcode_2017 written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/ForsakenHarmony/adventofcode_2017/Cargo.toml
[INFO] crate ForsakenHarmony/adventofcode_2017 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ForsakenHarmony/adventofcode_2017 against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-1/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/ForsakenHarmony/adventofcode_2017:/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] 52067585ed6ead1b90abf79beedb5597f550a1539a7fc023ecf4dc6be9445428
[INFO] running `"docker" "start" "-a" "52067585ed6ead1b90abf79beedb5597f550a1539a7fc023ecf4dc6be9445428"`
[INFO] [stderr]     Checking rayon-core v1.3.0
[INFO] [stderr]     Checking rayon v0.9.0
[INFO] [stderr]     Checking adventofcode_2017 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> examples/day15_2.rs:46:7
[INFO] [stderr]    |
[INFO] [stderr] 46 |   for i in 0..5_000_000 {
[INFO] [stderr]    |       ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]   --> examples/day20.rs:14:7
[INFO] [stderr]    |
[INFO] [stderr] 14 |   let res = day(
[INFO] [stderr]    |       ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> examples/day15.rs:17:7
[INFO] [stderr]    |
[INFO] [stderr] 17 |   for i in 0..40_000_000 {
[INFO] [stderr]    |       ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rayon::prelude`
[INFO] [stderr]  --> examples/day20_2.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rayon::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dist`
[INFO] [stderr]   --> examples/day20_2.rs:39:3
[INFO] [stderr]    |
[INFO] [stderr] 39 |   fn dist(&self) -> isize {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `debug`
[INFO] [stderr]   --> examples/day21_2.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |   fn debug(data: &Vec<char>) -> String {
[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]   --> examples/day7_2.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let mut node = Node {
[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]   --> examples/day7_2.rs:49:11
[INFO] [stderr]    |
[INFO] [stderr] 49 |       let mut c_iter = children
[INFO] [stderr]    |           ----^^^^^^
[INFO] [stderr]    |           |
[INFO] [stderr]    |           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `rotate` found for type `&mut std::vec::Vec<char>` in the current scope
[INFO] [stderr]   --> examples/day16_2.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |   state.rotate(len - offset);
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `adventofcode_2017`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/day8.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let mut reg_v = map.entry(reg).or_insert(0);
[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[E0599]: no method named `rotate` found for type `&mut std::vec::Vec<char>` in the current scope
[INFO] [stderr]   --> examples/day16.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |   state.rotate(len - offset);
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `adventofcode_2017`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/day8_2.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let mut reg_v = map.entry(reg).or_insert(0);
[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" "52067585ed6ead1b90abf79beedb5597f550a1539a7fc023ecf4dc6be9445428"`
[INFO] running `"docker" "rm" "-f" "52067585ed6ead1b90abf79beedb5597f550a1539a7fc023ecf4dc6be9445428"`
[INFO] [stdout] 52067585ed6ead1b90abf79beedb5597f550a1539a7fc023ecf4dc6be9445428