[INFO] updating cached repository davidsullins/AdventOfRust2016
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/davidsullins/AdventOfRust2016
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/davidsullins/AdventOfRust2016" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/davidsullins/AdventOfRust2016"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/davidsullins/AdventOfRust2016'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/davidsullins/AdventOfRust2016" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/davidsullins/AdventOfRust2016"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/davidsullins/AdventOfRust2016'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 28c0d8fa63c510afdd063df1c0034ea2507a068f
[INFO] sha for GitHub repo davidsullins/AdventOfRust2016: 28c0d8fa63c510afdd063df1c0034ea2507a068f
[INFO] validating manifest of davidsullins/AdventOfRust2016 on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of davidsullins/AdventOfRust2016 on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing davidsullins/AdventOfRust2016
[INFO] finished frobbing davidsullins/AdventOfRust2016
[INFO] frobbed toml for davidsullins/AdventOfRust2016 written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/davidsullins/AdventOfRust2016/Cargo.toml
[INFO] started frobbing davidsullins/AdventOfRust2016
[INFO] finished frobbing davidsullins/AdventOfRust2016
[INFO] frobbed toml for davidsullins/AdventOfRust2016 written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/davidsullins/AdventOfRust2016/Cargo.toml
[INFO] crate davidsullins/AdventOfRust2016 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking davidsullins/AdventOfRust2016 against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-1/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/davidsullins/AdventOfRust2016:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e7115e49dce8eda1cd8ea24401784eb372019b0ca4c51d27360e273ef3dc8098
[INFO] running `"docker" "start" "-a" "e7115e49dce8eda1cd8ea24401784eb372019b0ca4c51d27360e273ef3dc8098"`
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking md5 v0.3.2
[INFO] [stderr]     Checking permutohedron v0.2.2
[INFO] [stderr]     Checking futures v0.1.7
[INFO] [stderr]     Checking futures-cpupool v0.1.2
[INFO] [stderr]     Checking AdventOfRust2016 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unknown lint: `needless_range_loop`
[INFO] [stderr]   --> src/bin/advent19.rs:27:17
[INFO] [stderr]    |
[INFO] [stderr] 27 |         #[allow(needless_range_loop)]
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/advent6.rs:34:17
[INFO] [stderr]    |
[INFO] [stderr] 34 |         for (c, mut histogram) in message.chars().zip(histograms.iter_mut()) {
[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: unknown lint: `needless_range_loop`
[INFO] [stderr]   --> src/bin/advent19.rs:27:17
[INFO] [stderr]    |
[INFO] [stderr] 27 |         #[allow(needless_range_loop)]
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/advent6.rs:34:17
[INFO] [stderr]    |
[INFO] [stderr] 34 |         for (c, mut histogram) in message.chars().zip(histograms.iter_mut()) {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 12.38s
[INFO] running `"docker" "inspect" "e7115e49dce8eda1cd8ea24401784eb372019b0ca4c51d27360e273ef3dc8098"`
[INFO] running `"docker" "rm" "-f" "e7115e49dce8eda1cd8ea24401784eb372019b0ca4c51d27360e273ef3dc8098"`
[INFO] [stdout] e7115e49dce8eda1cd8ea24401784eb372019b0ca4c51d27360e273ef3dc8098