[INFO] updating cached repository https://github.com/yzhs/sokoban
[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] 639f03d567e9572d7c0bd5f5b533f1609ef9f346
[INFO] testing yzhs/sokoban against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyzhs%2Fsokoban" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yzhs/sokoban 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/yzhs/sokoban
[INFO] finished tweaking git repo https://github.com/yzhs/sokoban
[INFO] tweaked toml for git repo https://github.com/yzhs/sokoban written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/yzhs/sokoban 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] 5dc1df87f57b84309a4c7409872cb4a79ee7369d09e81ccec913d6f79d202033
[INFO] running `"docker" "start" "-a" "5dc1df87f57b84309a4c7409872cb4a79ee7369d09e81ccec913d6f79d202033"`
[INFO] [stderr]    Compiling cc v1.0.29
[INFO] [stderr]    Compiling downcast-rs v1.0.3
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]    Compiling encoding_rs v0.8.16
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling half v1.3.0
[INFO] [stderr]    Compiling natord v1.0.9
[INFO] [stderr]    Compiling find_folder v0.3.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling freetype-sys v0.7.1
[INFO] [stderr]    Compiling colored v1.7.0
[INFO] [stderr]    Compiling inflate v0.4.4
[INFO] [stderr]    Compiling app_dirs v1.2.1
[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling memmap v0.6.2
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling num_cpus v1.9.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling smallvec v0.6.8
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling wayland-client v0.20.12
[INFO] [stderr]    Compiling wayland-protocols v0.20.12
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling colog v0.1.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling glutin v0.17.0
[INFO] [stderr]    Compiling glium v0.22.0
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling tempfile v3.0.6
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling wayland-sys v0.20.12
[INFO] [stderr]    Compiling wayland-commons v0.20.12
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.87
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling serde_json v1.0.38
[INFO] [stderr]    Compiling serde_cbor v0.9.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling quick-xml v0.13.2
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling smithay-client-toolkit v0.2.6
[INFO] [stderr]    Compiling image v0.20.1
[INFO] [stderr]    Compiling winit v0.16.2
[INFO] [stderr]    Compiling glium_text v0.13.0
[INFO] [stderr]    Compiling sokoban v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(try_from)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::current_level::pathfinding::*`
[INFO] [stderr]  --> src/current_level.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::current_level::pathfinding::*;
[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 `sokoban`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5dc1df87f57b84309a4c7409872cb4a79ee7369d09e81ccec913d6f79d202033"`
[INFO] running `"docker" "rm" "-f" "5dc1df87f57b84309a4c7409872cb4a79ee7369d09e81ccec913d6f79d202033"`
[INFO] [stdout] 5dc1df87f57b84309a4c7409872cb4a79ee7369d09e81ccec913d6f79d202033