Dec 12 18:06:05.995 INFO checking apath-0.1.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 18:06:05.995 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 18:06:06.161 INFO [stdout] 007730e3a70fe94dda5e13e944d2b4563e406296de111e232978e4940cdf6f22
Dec 12 18:06:06.162 INFO running `"docker" "start" "-a" "007730e3a70fe94dda5e13e944d2b4563e406296de111e232978e4940cdf6f22"`
Dec 12 18:06:06.634 INFO [stderr] usermod: no changes
Dec 12 18:06:06.709 INFO [stderr]     Checking nalgebra v0.8.2
Dec 12 18:06:16.138 INFO [stderr]     Checking apath v0.1.0 (/source)
Dec 12 18:06:18.289 INFO [stderr] warning: variable does not need to be mutable
Dec 12 18:06:18.289 INFO [stderr]    --> src/lib.rs:327:55
Dec 12 18:06:18.289 INFO [stderr]     |
Dec 12 18:06:18.289 INFO [stderr] 327 |     fn path_update_fringe(&mut self, goal: Vector2<i32>, mut fringe: &mut Fringe, closed: &mut Vec<Vector2<i32>>) -> bool
Dec 12 18:06:18.289 INFO [stderr]     |                                                          ----^^^^^^
Dec 12 18:06:18.289 INFO [stderr]     |                                                          |
Dec 12 18:06:18.289 INFO [stderr]     |                                                          help: remove this `mut`
Dec 12 18:06:18.289 INFO [stderr]     |
Dec 12 18:06:18.289 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 18:06:18.289 INFO [stderr] 
Dec 12 18:06:18.298 INFO [stderr] warning: method is never used: `rem_obs_at`
Dec 12 18:06:18.298 INFO [stderr]    --> src/lib.rs:112:2
Dec 12 18:06:18.298 INFO [stderr]     |
Dec 12 18:06:18.298 INFO [stderr] 112 |     fn rem_obs_at(&mut self, pos: Vector2<i32>) -> ()
Dec 12 18:06:18.298 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 18:06:18.298 INFO [stderr]     |
Dec 12 18:06:18.298 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 18:06:18.298 INFO [stderr] 
Dec 12 18:06:18.385 INFO [stderr] warning: variable does not need to be mutable
Dec 12 18:06:18.385 INFO [stderr]    --> src/lib.rs:327:55
Dec 12 18:06:18.385 INFO [stderr]     |
Dec 12 18:06:18.385 INFO [stderr] 327 |     fn path_update_fringe(&mut self, goal: Vector2<i32>, mut fringe: &mut Fringe, closed: &mut Vec<Vector2<i32>>) -> bool
Dec 12 18:06:18.385 INFO [stderr]     |                                                          ----^^^^^^
Dec 12 18:06:18.385 INFO [stderr]     |                                                          |
Dec 12 18:06:18.385 INFO [stderr]     |                                                          help: remove this `mut`
Dec 12 18:06:18.385 INFO [stderr]     |
Dec 12 18:06:18.385 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 18:06:18.385 INFO [stderr] 
Dec 12 18:06:18.408 INFO [stderr] warning: method is never used: `rem_obs_at`
Dec 12 18:06:18.408 INFO [stderr]    --> src/lib.rs:112:2
Dec 12 18:06:18.408 INFO [stderr]     |
Dec 12 18:06:18.408 INFO [stderr] 112 |     fn rem_obs_at(&mut self, pos: Vector2<i32>) -> ()
Dec 12 18:06:18.408 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 18:06:18.408 INFO [stderr]     |
Dec 12 18:06:18.408 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 18:06:18.408 INFO [stderr] 
Dec 12 18:06:18.478 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.80s
Dec 12 18:06:18.478 INFO [stderr] su: No module specific data is present
Dec 12 18:06:19.002 INFO running `"docker" "inspect" "007730e3a70fe94dda5e13e944d2b4563e406296de111e232978e4940cdf6f22"`
Dec 12 18:06:19.298 INFO running `"docker" "rm" "-f" "007730e3a70fe94dda5e13e944d2b4563e406296de111e232978e4940cdf6f22"`
Dec 12 18:06:19.780 INFO [stdout] 007730e3a70fe94dda5e13e944d2b4563e406296de111e232978e4940cdf6f22