[INFO] updating cached repository https://github.com/loovjo/neat-driver
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] eb25f341849c82536435c35d7c0e8fbea571b5f1
[INFO] testing loovjo/neat-driver against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Floovjo%2Fneat-driver" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/loovjo/neat-driver on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/loovjo/neat-driver
[INFO] finished tweaking git repo https://github.com/loovjo/neat-driver
[INFO] tweaked toml for git repo https://github.com/loovjo/neat-driver written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/loovjo/neat-driver already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 13a82670c520dcbeadf7e73b2cac598ea39f0ddf2cf684ec6ea4c3caa8c6d4d2
[INFO] running `"docker" "start" "-a" "13a82670c520dcbeadf7e73b2cac598ea39f0ddf2cf684ec6ea4c3caa8c6d4d2"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.23
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling phf v0.7.23
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling syn v0.15.20
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling ytesrev v0.2.4
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]    Compiling NEAT-Pong v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(bind_by_move_pattern_guards)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem::replace`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::mem::replace;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/game.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/game.rs:127:31
[INFO] [stderr]     |
[INFO] [stderr] 127 |     fn content(&self) -> Vec<&Drawable> {
[INFO] [stderr]     |                               ^^^^^^^^ help: use `dyn`: `dyn Drawable`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/game.rs:130:43
[INFO] [stderr]     |
[INFO] [stderr] 130 |     fn content_mut(&mut self) -> Vec<&mut Drawable> {
[INFO] [stderr]     |                                           ^^^^^^^^ help: use `dyn`: `dyn Drawable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:113:31
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn content(&self) -> Vec<&Drawable> {
[INFO] [stderr]     |                               ^^^^^^^^ help: use `dyn`: `dyn Drawable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:114:41
[INFO] [stderr]     |
[INFO] [stderr] 114 |         self.games.iter().map(|x| x as &Drawable).collect()
[INFO] [stderr]     |                                         ^^^^^^^^ help: use `dyn`: `dyn Drawable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:116:43
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn content_mut(&mut self) -> Vec<&mut Drawable> {
[INFO] [stderr]     |                                           ^^^^^^^^ help: use `dyn`: `dyn Drawable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:117:49
[INFO] [stderr]     |
[INFO] [stderr] 117 |         self.games.iter_mut().map(|x| x as &mut Drawable).collect()
[INFO] [stderr]     |                                                 ^^^^^^^^ help: use `dyn`: `dyn Drawable`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `NEAT-Pong`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "13a82670c520dcbeadf7e73b2cac598ea39f0ddf2cf684ec6ea4c3caa8c6d4d2"`
[INFO] running `"docker" "rm" "-f" "13a82670c520dcbeadf7e73b2cac598ea39f0ddf2cf684ec6ea4c3caa8c6d4d2"`
[INFO] [stdout] 13a82670c520dcbeadf7e73b2cac598ea39f0ddf2cf684ec6ea4c3caa8c6d4d2