[INFO] updating cached repository Arcterus/game-of-life [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Arcterus/game-of-life [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Arcterus/game-of-life" "work/ex/beta-1.38-1/sources/1.37.0/gh/Arcterus/game-of-life"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Arcterus/game-of-life'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Arcterus/game-of-life" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Arcterus/game-of-life"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Arcterus/game-of-life'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] cf117d6701b64118bdf038b66cfe55ecd68f5db2 [INFO] sha for GitHub repo Arcterus/game-of-life: cf117d6701b64118bdf038b66cfe55ecd68f5db2 [INFO] validating manifest of Arcterus/game-of-life on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Arcterus/game-of-life on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing Arcterus/game-of-life [INFO] finished frobbing Arcterus/game-of-life [INFO] frobbed toml for Arcterus/game-of-life written to work/ex/beta-1.38-1/sources/1.37.0/gh/Arcterus/game-of-life/Cargo.toml [INFO] started frobbing Arcterus/game-of-life [INFO] finished frobbing Arcterus/game-of-life [INFO] frobbed toml for Arcterus/game-of-life written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Arcterus/game-of-life/Cargo.toml [INFO] crate Arcterus/game-of-life already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] testing Arcterus/game-of-life against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Arcterus/game-of-life:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] cee5c0d0325dfb3c2796465e24ad3f2e15184c83bbf81c254a1821b308e7b2bd [INFO] running `"docker" "start" "-a" "cee5c0d0325dfb3c2796465e24ad3f2e15184c83bbf81c254a1821b308e7b2bd"` [INFO] [stderr] Compiling fps_counter v1.0.0 [INFO] [stderr] Compiling shared_library v0.1.8 [INFO] [stderr] Compiling tempfile v2.2.0 [INFO] [stderr] Compiling gl_generator v0.7.0 [INFO] [stderr] Compiling gl_generator v0.6.1 [INFO] [stderr] Compiling x11-dl v2.17.2 [INFO] [stderr] Compiling target_build_utils v0.3.1 [INFO] [stderr] Compiling fs2 v0.2.5 [INFO] [stderr] Compiling osmesa-sys v0.1.2 [INFO] [stderr] Compiling memmap v0.4.0 [INFO] [stderr] Compiling pistoncore-input v0.20.0 [INFO] [stderr] Compiling image v0.18.0 [INFO] [stderr] Compiling glutin v0.10.1 [INFO] [stderr] Compiling gl v0.7.0 [INFO] [stderr] Compiling pistoncore-window v0.30.0 [INFO] [stderr] Compiling pistoncore-event_loop v0.35.0 [INFO] [stderr] Compiling piston v0.35.0 [INFO] [stderr] Compiling libloading v0.3.4 [INFO] [stderr] Compiling dlib v0.3.1 [INFO] [stderr] Compiling wayland-sys v0.9.10 [INFO] [stderr] Compiling wayland-client v0.9.10 [INFO] [stderr] Compiling piston2d-opengl_graphics v0.50.0 [INFO] [stderr] Compiling wayland-protocols v0.9.10 [INFO] [stderr] Compiling wayland-kbd v0.9.1 [INFO] [stderr] Compiling wayland-window v0.8.0 [INFO] [stderr] Compiling winit v0.8.3 [INFO] [stderr] Compiling pistoncore-glutin_window v0.43.0 [INFO] [stderr] Compiling game-of-life v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/life.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(conservative_impl_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `Line` is imported redundantly [INFO] [stderr] --> src/life.rs:161:11 [INFO] [stderr] | [INFO] [stderr] 14 | use graphics::*; [INFO] [stderr] | ----------- the item `Line` is already imported here [INFO] [stderr] ... [INFO] [stderr] 161 | use graphics::line::Line; [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 `game-of-life`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "cee5c0d0325dfb3c2796465e24ad3f2e15184c83bbf81c254a1821b308e7b2bd"` [INFO] running `"docker" "rm" "-f" "cee5c0d0325dfb3c2796465e24ad3f2e15184c83bbf81c254a1821b308e7b2bd"` [INFO] [stdout] cee5c0d0325dfb3c2796465e24ad3f2e15184c83bbf81c254a1821b308e7b2bd