Dec 17 18:31:44.061 INFO checking nwoeanhinnogaehr/coronene against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 18:31:44.061 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/nwoeanhinnogaehr/coronene:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 18:31:44.548 INFO [stdout] 6fb5b295c5e29ded2559c94d3f5d8f087d2516ea9ee06b90e3f8d547702db3a1
Dec 17 18:31:44.553 INFO running `"docker" "start" "-a" "6fb5b295c5e29ded2559c94d3f5d8f087d2516ea9ee06b90e3f8d547702db3a1"`
Dec 17 18:31:45.349 INFO [stderr]     Checking libc v0.2.15
Dec 17 18:31:45.349 INFO [stderr]     Checking fnv v1.0.3
Dec 17 18:31:45.350 INFO [stderr]     Checking union-find v0.3.1
Dec 17 18:31:45.973 INFO [stderr]     Checking time v0.1.35
Dec 17 18:31:45.973 INFO [stderr]     Checking rand v0.3.14
Dec 17 18:31:47.110 INFO [stderr]     Checking coronene v0.1.0 (/opt/crater/workdir)
Dec 17 18:31:47.548 INFO [stderr] warning: method is never used: `pos`
Dec 17 18:31:47.548 INFO [stderr]    --> src/player/board.rs:143:5
Dec 17 18:31:47.548 INFO [stderr]     |
Dec 17 18:31:47.548 INFO [stderr] 143 |     pub fn pos(&self) -> Option<Pos> {
Dec 17 18:31:47.548 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:31:47.548 INFO [stderr]     |
Dec 17 18:31:47.548 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 17 18:31:47.548 INFO [stderr] 
Dec 17 18:31:47.548 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 17 18:31:47.548 INFO [stderr]  --> src/main.rs:2:12
Dec 17 18:31:47.548 INFO [stderr]   |
Dec 17 18:31:47.548 INFO [stderr] 2 | #![feature(conservative_impl_trait)]
Dec 17 18:31:47.548 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:31:47.548 INFO [stderr]   |
Dec 17 18:31:47.548 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 17 18:31:47.548 INFO [stderr] 
Dec 17 18:31:47.636 INFO [stderr] warning: method is never used: `pos`
Dec 17 18:31:47.636 INFO [stderr]    --> src/player/board.rs:143:5
Dec 17 18:31:47.636 INFO [stderr]     |
Dec 17 18:31:47.636 INFO [stderr] 143 |     pub fn pos(&self) -> Option<Pos> {
Dec 17 18:31:47.636 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:31:47.636 INFO [stderr]     |
Dec 17 18:31:47.636 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 17 18:31:47.636 INFO [stderr] 
Dec 17 18:31:47.636 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 17 18:31:47.636 INFO [stderr]  --> src/main.rs:2:12
Dec 17 18:31:47.636 INFO [stderr]   |
Dec 17 18:31:47.636 INFO [stderr] 2 | #![feature(conservative_impl_trait)]
Dec 17 18:31:47.636 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:31:47.636 INFO [stderr]   |
Dec 17 18:31:47.636 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 17 18:31:47.637 INFO [stderr] 
Dec 17 18:31:47.670 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.34s
Dec 17 18:31:47.912 INFO running `"docker" "inspect" "6fb5b295c5e29ded2559c94d3f5d8f087d2516ea9ee06b90e3f8d547702db3a1"`
Dec 17 18:31:47.991 INFO running `"docker" "rm" "-f" "6fb5b295c5e29ded2559c94d3f5d8f087d2516ea9ee06b90e3f8d547702db3a1"`
Dec 17 18:31:48.090 INFO [stdout] 6fb5b295c5e29ded2559c94d3f5d8f087d2516ea9ee06b90e3f8d547702db3a1