Dec 19 17:40:37.929 INFO checking dyens/arena against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 17:40:37.929 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/dyens/arena:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 17:40:38.294 INFO [stdout] aea045f7b2fd2d7de5269d06a5cfb27bfe16dea5979e16ca7bbdea578f028c7f
Dec 19 17:40:38.314 INFO running `"docker" "start" "-a" "aea045f7b2fd2d7de5269d06a5cfb27bfe16dea5979e16ca7bbdea578f028c7f"`
Dec 19 17:40:40.192 INFO [stderr]     Checking alga v0.5.3
Dec 19 17:40:40.192 INFO [stderr]     Checking chrono v0.4.1
Dec 19 17:40:40.204 INFO [stderr]     Checking pistoncore-window v0.31.0
Dec 19 17:40:40.204 INFO [stderr]     Checking piston-gfx_texture v0.31.0
Dec 19 17:40:40.204 INFO [stderr]     Checking winit v0.10.0
Dec 19 17:40:41.832 INFO [stderr]     Checking pistoncore-event_loop v0.36.0
Dec 19 17:40:43.253 INFO [stderr]     Checking piston2d-gfx_graphics v0.50.0
Dec 19 17:40:43.532 INFO [stderr]     Checking piston v0.36.0
Dec 19 17:40:43.652 INFO [stderr]     Checking glutin v0.12.2
Dec 19 17:40:46.349 INFO [stderr]     Checking pistoncore-glutin_window v0.45.3
Dec 19 17:40:46.632 INFO [stderr]     Checking nalgebra v0.14.1
Dec 19 17:40:47.685 INFO [stderr]     Checking piston_window v0.77.0
Dec 19 17:41:14.577 INFO [stderr]     Checking ncollide_math v0.9.0
Dec 19 17:41:15.568 INFO [stderr]     Checking ncollide_utils v0.9.0
Dec 19 17:41:16.992 INFO [stderr]     Checking ncollide_geometry v0.6.2
Dec 19 17:41:16.992 INFO [stderr]     Checking ncollide_procedural v0.9.0
Dec 19 17:41:28.668 INFO [stderr]     Checking ncollide_pipeline v0.13.1
Dec 19 17:41:28.668 INFO [stderr]     Checking ncollide_transformation v0.9.0
Dec 19 17:41:31.468 INFO [stderr]     Checking ncollide v0.14.1
Dec 19 17:41:31.872 INFO [stderr]     Checking arena v0.1.0 (/opt/crater/workdir)
Dec 19 17:41:33.308 INFO [stderr] warning: unused import: `std::mem`
Dec 19 17:41:33.308 INFO [stderr]   --> src/tank.rs:13:5
Dec 19 17:41:33.314 INFO [stderr]    |
Dec 19 17:41:33.314 INFO [stderr] 13 | use std::mem;
Dec 19 17:41:33.314 INFO [stderr]    |     ^^^^^^^^
Dec 19 17:41:33.314 INFO [stderr]    |
Dec 19 17:41:33.314 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 17:41:33.314 INFO [stderr] 
Dec 19 17:41:33.376 INFO [stderr] warning: unused import: `std::mem`
Dec 19 17:41:33.376 INFO [stderr]   --> src/tank.rs:13:5
Dec 19 17:41:33.376 INFO [stderr]    |
Dec 19 17:41:33.376 INFO [stderr] 13 | use std::mem;
Dec 19 17:41:33.376 INFO [stderr]    |     ^^^^^^^^
Dec 19 17:41:33.377 INFO [stderr]    |
Dec 19 17:41:33.377 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 17:41:33.377 INFO [stderr] 
Dec 19 17:41:33.831 INFO [stderr] warning: method is never used: `give_brain`
Dec 19 17:41:33.831 INFO [stderr]    --> src/tank.rs:183:5
Dec 19 17:41:33.832 INFO [stderr]     |
Dec 19 17:41:33.832 INFO [stderr] 183 |     pub fn give_brain(&mut self, brain: Brain) {
Dec 19 17:41:33.832 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:41:33.832 INFO [stderr]     |
Dec 19 17:41:33.834 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 17:41:33.834 INFO [stderr] 
Dec 19 17:41:33.834 INFO [stderr] warning: method is never used: `pick_up_brain`
Dec 19 17:41:33.835 INFO [stderr]    --> src/tank.rs:187:5
Dec 19 17:41:33.835 INFO [stderr]     |
Dec 19 17:41:33.835 INFO [stderr] 187 |     pub fn pick_up_brain(mut self) -> Option<Brain> {
Dec 19 17:41:33.835 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:41:33.835 INFO [stderr] 
Dec 19 17:41:33.835 INFO [stderr] warning: function is never used: `relu_af`
Dec 19 17:41:33.835 INFO [stderr]  --> src/brain.rs:7:1
Dec 19 17:41:33.835 INFO [stderr]   |
Dec 19 17:41:33.835 INFO [stderr] 7 | pub fn relu_af(x: f64) -> f64 {
Dec 19 17:41:33.835 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:41:33.835 INFO [stderr] 
Dec 19 17:41:33.835 INFO [stderr] warning: method is never used: `fuck`
Dec 19 17:41:33.835 INFO [stderr]    --> src/brain.rs:110:5
Dec 19 17:41:33.835 INFO [stderr]     |
Dec 19 17:41:33.835 INFO [stderr] 110 |     pub fn fuck(&self, partner: &Layer) -> (Layer, Layer) {
Dec 19 17:41:33.835 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:41:33.835 INFO [stderr] 
Dec 19 17:41:33.835 INFO [stderr] warning: method is never used: `fuck`
Dec 19 17:41:33.835 INFO [stderr]    --> src/brain.rs:211:5
Dec 19 17:41:33.835 INFO [stderr]     |
Dec 19 17:41:33.835 INFO [stderr] 211 | /     pub fn fuck(&self, partner: &LayersChain)
Dec 19 17:41:33.835 INFO [stderr] 212 | |                 -> (LayersChain, LayersChain) {
Dec 19 17:41:33.835 INFO [stderr] 213 | |         assert!(self.layers.len() == partner.layers.len());
Dec 19 17:41:33.835 INFO [stderr] 214 | |         let mut ls1 = Vec::with_capacity(self.layers.len());
Dec 19 17:41:33.835 INFO [stderr] ...   |
Dec 19 17:41:33.835 INFO [stderr] 221 | |         (LayersChain{layers: ls1}, LayersChain{layers: ls2})
Dec 19 17:41:33.835 INFO [stderr] 222 | |     }
Dec 19 17:41:33.835 INFO [stderr]     | |_____^
Dec 19 17:41:33.835 INFO [stderr] 
Dec 19 17:41:33.835 INFO [stderr] warning: method is never used: `fuck`
Dec 19 17:41:33.835 INFO [stderr]    --> src/brain.rs:277:5
Dec 19 17:41:33.835 INFO [stderr]     |
Dec 19 17:41:33.840 INFO [stderr] 277 | /     pub fn fuck(&self, partner: &Brain)
Dec 19 17:41:33.840 INFO [stderr] 278 | |                 -> (Brain, Brain)
Dec 19 17:41:33.840 INFO [stderr] 279 | |     {
Dec 19 17:41:33.840 INFO [stderr] 280 | |         let (rc1, rc2) = self.result_chain
Dec 19 17:41:33.840 INFO [stderr] ...   |
Dec 19 17:41:33.840 INFO [stderr] 297 | |
Dec 19 17:41:33.840 INFO [stderr] 298 | |     }
Dec 19 17:41:33.840 INFO [stderr]     | |_____^
Dec 19 17:41:33.840 INFO [stderr] 
Dec 19 17:41:33.936 INFO [stderr] warning: method is never used: `give_brain`
Dec 19 17:41:33.936 INFO [stderr]    --> src/tank.rs:183:5
Dec 19 17:41:33.936 INFO [stderr]     |
Dec 19 17:41:33.936 INFO [stderr] 183 |     pub fn give_brain(&mut self, brain: Brain) {
Dec 19 17:41:33.936 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:41:33.936 INFO [stderr]     |
Dec 19 17:41:33.936 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 17:41:33.936 INFO [stderr] 
Dec 19 17:41:33.936 INFO [stderr] warning: method is never used: `pick_up_brain`
Dec 19 17:41:33.936 INFO [stderr]    --> src/tank.rs:187:5
Dec 19 17:41:33.936 INFO [stderr]     |
Dec 19 17:41:33.936 INFO [stderr] 187 |     pub fn pick_up_brain(mut self) -> Option<Brain> {
Dec 19 17:41:33.936 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:41:33.936 INFO [stderr] 
Dec 19 17:41:33.936 INFO [stderr] warning: function is never used: `relu_af`
Dec 19 17:41:33.936 INFO [stderr]  --> src/brain.rs:7:1
Dec 19 17:41:33.936 INFO [stderr]   |
Dec 19 17:41:33.937 INFO [stderr] 7 | pub fn relu_af(x: f64) -> f64 {
Dec 19 17:41:33.937 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:41:33.937 INFO [stderr] 
Dec 19 17:41:33.937 INFO [stderr] warning: method is never used: `fuck`
Dec 19 17:41:33.937 INFO [stderr]    --> src/brain.rs:110:5
Dec 19 17:41:33.937 INFO [stderr]     |
Dec 19 17:41:33.937 INFO [stderr] 110 |     pub fn fuck(&self, partner: &Layer) -> (Layer, Layer) {
Dec 19 17:41:33.937 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:41:33.937 INFO [stderr] 
Dec 19 17:41:33.937 INFO [stderr] warning: method is never used: `fuck`
Dec 19 17:41:33.937 INFO [stderr]    --> src/brain.rs:211:5
Dec 19 17:41:33.937 INFO [stderr]     |
Dec 19 17:41:33.937 INFO [stderr] 211 | /     pub fn fuck(&self, partner: &LayersChain)
Dec 19 17:41:33.937 INFO [stderr] 212 | |                 -> (LayersChain, LayersChain) {
Dec 19 17:41:33.937 INFO [stderr] 213 | |         assert!(self.layers.len() == partner.layers.len());
Dec 19 17:41:33.937 INFO [stderr] 214 | |         let mut ls1 = Vec::with_capacity(self.layers.len());
Dec 19 17:41:33.937 INFO [stderr] ...   |
Dec 19 17:41:33.937 INFO [stderr] 221 | |         (LayersChain{layers: ls1}, LayersChain{layers: ls2})
Dec 19 17:41:33.937 INFO [stderr] 222 | |     }
Dec 19 17:41:33.937 INFO [stderr]     | |_____^
Dec 19 17:41:33.937 INFO [stderr] 
Dec 19 17:41:33.937 INFO [stderr] warning: method is never used: `fuck`
Dec 19 17:41:33.937 INFO [stderr]    --> src/brain.rs:277:5
Dec 19 17:41:33.937 INFO [stderr]     |
Dec 19 17:41:33.937 INFO [stderr] 277 | /     pub fn fuck(&self, partner: &Brain)
Dec 19 17:41:33.937 INFO [stderr] 278 | |                 -> (Brain, Brain)
Dec 19 17:41:33.937 INFO [stderr] 279 | |     {
Dec 19 17:41:33.937 INFO [stderr] 280 | |         let (rc1, rc2) = self.result_chain
Dec 19 17:41:33.937 INFO [stderr] ...   |
Dec 19 17:41:33.937 INFO [stderr] 297 | |
Dec 19 17:41:33.937 INFO [stderr] 298 | |     }
Dec 19 17:41:33.937 INFO [stderr]     | |_____^
Dec 19 17:41:33.937 INFO [stderr] 
Dec 19 17:41:33.972 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.13s
Dec 19 17:41:34.443 INFO running `"docker" "inspect" "aea045f7b2fd2d7de5269d06a5cfb27bfe16dea5979e16ca7bbdea578f028c7f"`
Dec 19 17:41:34.726 INFO running `"docker" "rm" "-f" "aea045f7b2fd2d7de5269d06a5cfb27bfe16dea5979e16ca7bbdea578f028c7f"`
Dec 19 17:41:34.940 INFO [stdout] aea045f7b2fd2d7de5269d06a5cfb27bfe16dea5979e16ca7bbdea578f028c7f