[INFO] updating cached repository https://github.com/McGittyHub/chess-rs
[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] 0d9105e6a690eb4e96a3880f9424708fc7f2aec7
[INFO] testing McGittyHub/chess-rs against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FMcGittyHub%2Fchess-rs" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/McGittyHub/chess-rs on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/McGittyHub/chess-rs
[INFO] finished tweaking git repo https://github.com/McGittyHub/chess-rs
[INFO] tweaked toml for git repo https://github.com/McGittyHub/chess-rs written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/McGittyHub/chess-rs already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 29086a5735f55244fd21d5c4de23c618add2798c9cb9843b1461bb63928ce9eb
[INFO] running `"docker" "start" "-a" "29086a5735f55244fd21d5c4de23c618add2798c9cb9843b1461bb63928ce9eb"`
[INFO] [stderr]    Compiling either v1.4.0
[INFO] [stderr]    Compiling rayon-core v1.3.0
[INFO] [stderr]    Compiling inflections v1.1.1
[INFO] [stderr]    Compiling mint v0.4.2
[INFO] [stderr]    Compiling mint v0.2.0
[INFO] [stderr]    Compiling hound v1.1.0
[INFO] [stderr]    Compiling spin v0.4.6
[INFO] [stderr]    Compiling smallvec v0.5.0
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling x11-dl v2.16.0
[INFO] [stderr]    Compiling shared_library v0.1.7
[INFO] [stderr]    Compiling alsa-sys v0.1.1
[INFO] [stderr]    Compiling ogg v0.4.1
[INFO] [stderr]    Compiling draw_state v0.7.1
[INFO] [stderr]    Compiling serde_json v1.0.6
[INFO] [stderr]    Compiling arrayvec v0.4.6
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling wayland-scanner v0.9.10
[INFO] [stderr]    Compiling gl_generator v0.5.5
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling cgmath v0.14.1
[INFO] [stderr]    Compiling num-rational v0.1.40
[INFO] [stderr]    Compiling froggy v0.4.4
[INFO] [stderr]    Compiling ordered-float v0.5.0
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling coco v0.1.1
[INFO] [stderr]    Compiling itertools v0.6.5
[INFO] [stderr]    Compiling lewton v0.5.2
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling png v0.7.0
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling cgmath v0.15.0
[INFO] [stderr]    Compiling rusttype v0.2.3
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling walkdir v0.1.8
[INFO] [stderr]    Compiling gltf-derive v0.9.3
[INFO] [stderr]    Compiling memmap v0.4.0
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling wayland-client v0.9.10
[INFO] [stderr]    Compiling wayland-protocols v0.9.10
[INFO] [stderr]    Compiling includedir v0.2.2
[INFO] [stderr]    Compiling cpal v0.4.6
[INFO] [stderr]    Compiling includedir_codegen v0.2.2
[INFO] [stderr]    Compiling derivative v1.0.0
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling rayon v0.9.0
[INFO] [stderr]    Compiling gltf-json v0.9.3
[INFO] [stderr]    Compiling gfx_gl v0.3.1
[INFO] [stderr]    Compiling glutin v0.9.2
[INFO] [stderr]    Compiling three v0.2.0 (https://github.com/three-rs/three.git#afddb1d3)
[INFO] [stderr]    Compiling genmesh v0.5.0
[INFO] [stderr]    Compiling rodio v0.5.2
[INFO] [stderr]    Compiling obj v0.6.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling image v0.13.0
[INFO] [stderr]    Compiling gfx_core v0.7.2
[INFO] [stderr]    Compiling gltf v0.9.3
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]    Compiling gltf-utils v0.9.3
[INFO] [stderr]    Compiling gltf-importer v0.9.3
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling wayland-sys v0.9.10
[INFO] [stderr]    Compiling wayland-kbd v0.9.1
[INFO] [stderr]    Compiling wayland-window v0.7.0
[INFO] [stderr]    Compiling winit v0.7.6
[INFO] [stderr]    Compiling gfx v0.16.1
[INFO] [stderr]    Compiling gfx_device_gl v0.14.4
[INFO] [stderr]    Compiling gfx_window_glutin v0.17.0
[INFO] [stderr]    Compiling gfx_glyph v0.3.3
[INFO] [stderr]    Compiling chess-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(conservative_impl_trait)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/move_analyzer.rs:37:28
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let sweeps: &mut [&mut Iterator<Item = Tile>] = &mut [
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Tile>`
[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/backend/move_analyzer.rs:106:28
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let sweeps: &mut [&mut Iterator<Item = Tile>] = &mut [
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Tile>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `backend::piece::Piece`
[INFO] [stderr]  --> src/frontend/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use backend::piece::Piece;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[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 `chess-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "29086a5735f55244fd21d5c4de23c618add2798c9cb9843b1461bb63928ce9eb"`
[INFO] running `"docker" "rm" "-f" "29086a5735f55244fd21d5c4de23c618add2798c9cb9843b1461bb63928ce9eb"`
[INFO] [stdout] 29086a5735f55244fd21d5c4de23c618add2798c9cb9843b1461bb63928ce9eb