[INFO] cloning repository ForsakenHarmony/adventofcode_2017
[INFO] running `"git" "clone" "--bare" "git://github.com/ForsakenHarmony/adventofcode_2017.git" "work/cache/sources/gh/ForsakenHarmony/adventofcode_2017"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/ForsakenHarmony/adventofcode_2017'...
[INFO] running `"git" "clone" "work/cache/sources/gh/ForsakenHarmony/adventofcode_2017" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/ForsakenHarmony/adventofcode_2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/ForsakenHarmony/adventofcode_2017'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ForsakenHarmony/adventofcode_2017" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/ForsakenHarmony/adventofcode_2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/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#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ForsakenHarmony/adventofcode_2017 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-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-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/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-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/ForsakenHarmony/adventofcode_2017/Cargo.toml
[INFO] crate ForsakenHarmony/adventofcode_2017 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ForsakenHarmony/adventofcode_2017 against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-2/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/ForsakenHarmony/adventofcode_2017:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c6b1de50106155c13bf29698100ebe49cd8ccd14df769441f7cd39bb531a8651
[INFO] running `"docker" "start" "-a" "c6b1de50106155c13bf29698100ebe49cd8ccd14df769441f7cd39bb531a8651"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking adventofcode_2017 v0.1.0 (/opt/crater/workdir)
[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: 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: 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] 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] 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: 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] 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] error: build failed
[INFO] running `"docker" "inspect" "c6b1de50106155c13bf29698100ebe49cd8ccd14df769441f7cd39bb531a8651"`
[INFO] running `"docker" "rm" "-f" "c6b1de50106155c13bf29698100ebe49cd8ccd14df769441f7cd39bb531a8651"`
[INFO] [stdout] c6b1de50106155c13bf29698100ebe49cd8ccd14df769441f7cd39bb531a8651