Dec 18 06:42:49.652 INFO checking Litecrafty/Hexeract against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 06:42:49.652 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/Litecrafty/Hexeract:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 06:42:49.843 INFO [stdout] 991f2c77229f299a692d2a5bfa64792bc95f269a75f7bfb191538fd95d5151ef
Dec 18 06:42:49.846 INFO running `"docker" "start" "-a" "991f2c77229f299a692d2a5bfa64792bc95f269a75f7bfb191538fd95d5151ef"`
Dec 18 06:42:50.290 INFO [stderr]     Checking hexeract v0.1.0 (/opt/crater/workdir)
Dec 18 06:42:50.474 INFO [stderr] warning: enum is never used: `Biome`
Dec 18 06:42:50.474 INFO [stderr]   --> src/core/biome.rs:18:1
Dec 18 06:42:50.474 INFO [stderr]    |
Dec 18 06:42:50.474 INFO [stderr] 18 | pub enum Biome {
Dec 18 06:42:50.474 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 18 06:42:50.474 INFO [stderr]    |
Dec 18 06:42:50.474 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 06:42:50.474 INFO [stderr] 
Dec 18 06:42:50.474 INFO [stderr] warning: method is never used: `id`
Dec 18 06:42:50.474 INFO [stderr]   --> src/core/biome.rs:97:5
Dec 18 06:42:50.474 INFO [stderr]    |
Dec 18 06:42:50.474 INFO [stderr] 97 |     pub fn id(&self) -> u8 {
Dec 18 06:42:50.474 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:42:50.474 INFO [stderr] 
Dec 18 06:42:50.474 INFO [stderr] warning: struct is never constructed: `Chunk`
Dec 18 06:42:50.474 INFO [stderr]   --> src/core/chunk.rs:18:1
Dec 18 06:42:50.474 INFO [stderr]    |
Dec 18 06:42:50.474 INFO [stderr] 18 | pub struct Chunk {
Dec 18 06:42:50.474 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 18 06:42:50.475 INFO [stderr] 
Dec 18 06:42:50.476 INFO [stderr] warning: enum is never used: `Biome`
Dec 18 06:42:50.476 INFO [stderr]   --> src/core/biome.rs:18:1
Dec 18 06:42:50.476 INFO [stderr]    |
Dec 18 06:42:50.476 INFO [stderr] 18 | pub enum Biome {
Dec 18 06:42:50.476 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 18 06:42:50.476 INFO [stderr]    |
Dec 18 06:42:50.476 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 06:42:50.476 INFO [stderr] 
Dec 18 06:42:50.476 INFO [stderr] warning: method is never used: `id`
Dec 18 06:42:50.476 INFO [stderr]   --> src/core/biome.rs:97:5
Dec 18 06:42:50.476 INFO [stderr]    |
Dec 18 06:42:50.476 INFO [stderr] 97 |     pub fn id(&self) -> u8 {
Dec 18 06:42:50.476 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:42:50.476 INFO [stderr] 
Dec 18 06:42:50.476 INFO [stderr] warning: struct is never constructed: `Chunk`
Dec 18 06:42:50.476 INFO [stderr]   --> src/core/chunk.rs:18:1
Dec 18 06:42:50.476 INFO [stderr]    |
Dec 18 06:42:50.476 INFO [stderr] 18 | pub struct Chunk {
Dec 18 06:42:50.476 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 18 06:42:50.476 INFO [stderr] 
Dec 18 06:42:50.489 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
Dec 18 06:42:50.765 INFO running `"docker" "inspect" "991f2c77229f299a692d2a5bfa64792bc95f269a75f7bfb191538fd95d5151ef"`
Dec 18 06:42:50.891 INFO running `"docker" "rm" "-f" "991f2c77229f299a692d2a5bfa64792bc95f269a75f7bfb191538fd95d5151ef"`
Dec 18 06:42:50.984 INFO [stdout] 991f2c77229f299a692d2a5bfa64792bc95f269a75f7bfb191538fd95d5151ef