[INFO] updating cached repository simonasker/adventofcode2016
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/simonasker/adventofcode2016
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/simonasker/adventofcode2016" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/simonasker/adventofcode2016"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/simonasker/adventofcode2016'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/simonasker/adventofcode2016" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/simonasker/adventofcode2016"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/simonasker/adventofcode2016'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b46931a2cc2191aa536c492e088b9ad64bdfebb0
[INFO] sha for GitHub repo simonasker/adventofcode2016: b46931a2cc2191aa536c492e088b9ad64bdfebb0
[INFO] validating manifest of simonasker/adventofcode2016 on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of simonasker/adventofcode2016 on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing simonasker/adventofcode2016
[INFO] finished frobbing simonasker/adventofcode2016
[INFO] frobbed toml for simonasker/adventofcode2016 written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/simonasker/adventofcode2016/Cargo.toml
[INFO] started frobbing simonasker/adventofcode2016
[INFO] finished frobbing simonasker/adventofcode2016
[INFO] frobbed toml for simonasker/adventofcode2016 written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/simonasker/adventofcode2016/Cargo.toml
[INFO] crate simonasker/adventofcode2016 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking simonasker/adventofcode2016 against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-7/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/simonasker/adventofcode2016:/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" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] af7b5c1ca3bcef201630b051f56f72dddb36c6ea7e0bd00e31521428beb10dca
[INFO] running `"docker" "start" "-a" "af7b5c1ca3bcef201630b051f56f72dddb36c6ea7e0bd00e31521428beb10dca"`
[INFO] [stderr]    Compiling gcc v0.3.39
[INFO] [stderr]     Checking unicode-segmentation v0.1.3
[INFO] [stderr]     Checking unicode-width v0.1.3
[INFO] [stderr]     Checking rustc-serialize v0.3.21
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking clap v2.19.1
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking adventofcode2016 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/solutions/day19.rs:14:31
[INFO] [stderr]    |
[INFO] [stderr] 14 |             res = i32::pow(2, (i-1));
[INFO] [stderr]    |                               ^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/solutions/day19.rs:14:31
[INFO] [stderr]    |
[INFO] [stderr] 14 |             res = i32::pow(2, (i-1));
[INFO] [stderr]    |                               ^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `b` is never read
[INFO] [stderr]    --> src/solutions/day23.rs:154:13
[INFO] [stderr]     |
[INFO] [stderr] 154 |     let mut b = 0;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c` is never read
[INFO] [stderr]    --> src/solutions/day23.rs:155:13
[INFO] [stderr]     |
[INFO] [stderr] 155 |     let mut c = 0;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `d` is never read
[INFO] [stderr]    --> src/solutions/day23.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |     let mut d = 0;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c` is never read
[INFO] [stderr]    --> src/solutions/day23.rs:184:5
[INFO] [stderr]     |
[INFO] [stderr] 184 |     c = 1; // 19: cpy 1 c TOGGLED
[INFO] [stderr]     |     ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `b` is never read
[INFO] [stderr]    --> src/solutions/day23.rs:154:13
[INFO] [stderr]     |
[INFO] [stderr] 154 |     let mut b = 0;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c` is never read
[INFO] [stderr]    --> src/solutions/day23.rs:155:13
[INFO] [stderr]     |
[INFO] [stderr] 155 |     let mut c = 0;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `d` is never read
[INFO] [stderr]    --> src/solutions/day23.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |     let mut d = 0;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c` is never read
[INFO] [stderr]    --> src/solutions/day23.rs:184:5
[INFO] [stderr]     |
[INFO] [stderr] 184 |     c = 1; // 19: cpy 1 c TOGGLED
[INFO] [stderr]     |     ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.94s
[INFO] running `"docker" "inspect" "af7b5c1ca3bcef201630b051f56f72dddb36c6ea7e0bd00e31521428beb10dca"`
[INFO] running `"docker" "rm" "-f" "af7b5c1ca3bcef201630b051f56f72dddb36c6ea7e0bd00e31521428beb10dca"`
[INFO] [stdout] af7b5c1ca3bcef201630b051f56f72dddb36c6ea7e0bd00e31521428beb10dca