[INFO] updating cached repository gobanos/adventofcode-2016
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gobanos/adventofcode-2016
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gobanos/adventofcode-2016" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/gobanos/adventofcode-2016"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/gobanos/adventofcode-2016'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gobanos/adventofcode-2016" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/gobanos/adventofcode-2016"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/gobanos/adventofcode-2016'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5d3f369f0921c25d0734cf710f9fcb8717c1b776
[INFO] sha for GitHub repo gobanos/adventofcode-2016: 5d3f369f0921c25d0734cf710f9fcb8717c1b776
[INFO] validating manifest of gobanos/adventofcode-2016 on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gobanos/adventofcode-2016 on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gobanos/adventofcode-2016
[INFO] finished frobbing gobanos/adventofcode-2016
[INFO] frobbed toml for gobanos/adventofcode-2016 written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/gobanos/adventofcode-2016/Cargo.toml
[INFO] started frobbing gobanos/adventofcode-2016
[INFO] finished frobbing gobanos/adventofcode-2016
[INFO] frobbed toml for gobanos/adventofcode-2016 written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/gobanos/adventofcode-2016/Cargo.toml
[INFO] crate gobanos/adventofcode-2016 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gobanos/adventofcode-2016 against master#0f88167f89fffe321590c5148f21b7d51d44388d for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-1/master#0f88167f89fffe321590c5148f21b7d51d44388d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/gobanos/adventofcode-2016:/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" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 38dc9c1ffac2f4ef0ffd9fe69adda704ee7f091b5316b63847eab7a3c653498e
[INFO] running `"docker" "start" "-a" "38dc9c1ffac2f4ef0ffd9fe69adda704ee7f091b5316b63847eab7a3c653498e"`
[INFO] [stderr]    Compiling gcc v0.3.39
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking adventofcode-2016 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `nb_pixel_on`
[INFO] [stderr]    --> src/day8/problem1.rs:45:13
[INFO] [stderr]     |
[INFO] [stderr] 45  |             fn nb_pixel_on(&self) -> usize {
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 163 |     make_sized_screen!(TestScreen, width: 7, height: 3);
[INFO] [stderr]     |     ---------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `nb_pixel_on`
[INFO] [stderr]   --> src/day8/problem2.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn nb_pixel_on(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `nb_pixel_on`
[INFO] [stderr]   --> src/day8/problem2.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn nb_pixel_on(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.37s
[INFO] running `"docker" "inspect" "38dc9c1ffac2f4ef0ffd9fe69adda704ee7f091b5316b63847eab7a3c653498e"`
[INFO] running `"docker" "rm" "-f" "38dc9c1ffac2f4ef0ffd9fe69adda704ee7f091b5316b63847eab7a3c653498e"`
[INFO] [stdout] 38dc9c1ffac2f4ef0ffd9fe69adda704ee7f091b5316b63847eab7a3c653498e