[INFO] updating cached repository Gipphe/advent-of-code-2017
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Gipphe/advent-of-code-2017
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Gipphe/advent-of-code-2017" "work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/Gipphe/advent-of-code-2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/Gipphe/advent-of-code-2017'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Gipphe/advent-of-code-2017" "work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/Gipphe/advent-of-code-2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/Gipphe/advent-of-code-2017'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 84c64926d4539c8632fe0b293c41c29fa4a5ffd3
[INFO] sha for GitHub repo Gipphe/advent-of-code-2017: 84c64926d4539c8632fe0b293c41c29fa4a5ffd3
[INFO] validating manifest of Gipphe/advent-of-code-2017 on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Gipphe/advent-of-code-2017 on toolchain try#e70472fc501b855c9080f3772432c10fe20b8866
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Gipphe/advent-of-code-2017
[INFO] finished frobbing Gipphe/advent-of-code-2017
[INFO] frobbed toml for Gipphe/advent-of-code-2017 written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/Gipphe/advent-of-code-2017/Cargo.toml
[INFO] started frobbing Gipphe/advent-of-code-2017
[INFO] finished frobbing Gipphe/advent-of-code-2017
[INFO] frobbed toml for Gipphe/advent-of-code-2017 written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/Gipphe/advent-of-code-2017/Cargo.toml
[INFO] crate Gipphe/advent-of-code-2017 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Gipphe/advent-of-code-2017 against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/Gipphe/advent-of-code-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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0a199d9afb9d9b3eec0542eceb2e6cca4e3b3b6ecf0913638ff77c933207e9fb
[INFO] running `"docker" "start" "-a" "0a199d9afb9d9b3eec0542eceb2e6cca4e3b3b6ecf0913638ff77c933207e9fb"`
[INFO] [stderr]     Checking advent-of-code-2017 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `child`
[INFO] [stderr]    --> src/day_7/mod.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |     for child in root.children {
[INFO] [stderr]     |         ^^^^^ help: consider using `_child` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `child`
[INFO] [stderr]    --> src/day_7/mod.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |     for child in root.children {
[INFO] [stderr]     |         ^^^^^ help: consider using `_child` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sum_weight`
[INFO] [stderr]   --> src/day_7/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn sum_weight(&self) -> u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_wrong_weight`
[INFO] [stderr]    --> src/day_7/mod.rs:134:1
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn find_wrong_weight(root: Program) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sum_weight`
[INFO] [stderr]   --> src/day_7/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn sum_weight(&self) -> u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_wrong_weight`
[INFO] [stderr]    --> src/day_7/mod.rs:134:1
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn find_wrong_weight(root: Program) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `"docker" "inspect" "0a199d9afb9d9b3eec0542eceb2e6cca4e3b3b6ecf0913638ff77c933207e9fb"`
[INFO] running `"docker" "rm" "-f" "0a199d9afb9d9b3eec0542eceb2e6cca4e3b3b6ecf0913638ff77c933207e9fb"`
[INFO] [stdout] 0a199d9afb9d9b3eec0542eceb2e6cca4e3b3b6ecf0913638ff77c933207e9fb