[INFO] updating cached repository https://github.com/lynncyrin/galaxy-gen
[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] 090ac8929653767d1f79021d6503bbe85f0bcfd2
[INFO] testing lynncyrin/galaxy-gen against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Flynncyrin%2Fgalaxy-gen" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lynncyrin/galaxy-gen 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/lynncyrin/galaxy-gen
[INFO] finished tweaking git repo https://github.com/lynncyrin/galaxy-gen
[INFO] tweaked toml for git repo https://github.com/lynncyrin/galaxy-gen written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/lynncyrin/galaxy-gen 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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] ea0c47ff09e10e1fb37a98d9cfa543d5f6d8b75fd418acd0aca9fd5f9b8eb6ef
[INFO] running `"docker" "start" "-a" "ea0c47ff09e10e1fb37a98d9cfa543d5f6d8b75fd418acd0aca9fd5f9b8eb6ef"`
[INFO] [stderr] warning: `default-features = [".."]` was found in [features]. Did you mean to use `default = [".."]`?
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.21
[INFO] [stderr]    Compiling wasm-bindgen v0.2.21
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling syn v0.15.4
[INFO] [stderr]    Compiling serde_json v1.0.27
[INFO] [stderr]    Compiling shred-derive v0.5.0
[INFO] [stderr]    Compiling hibitset v0.5.2
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling shred v0.7.0
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling shrev v1.0.1
[INFO] [stderr]    Compiling specs v0.12.2
[INFO] [stderr]    Compiling specs-derive v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.78
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.21
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.21
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.21
[INFO] [stderr]    Compiling galaxy_gen_backend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/rust/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(extern_prelude, custom_attribute)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Builder`, `DispatcherBuilder`, `RunNow`, `World`
[INFO] [stderr]   --> src/rust/galaxyecs.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 | use specs::{Builder, DispatcherBuilder, RunNow, World};
[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 `galaxy_gen_backend`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ea0c47ff09e10e1fb37a98d9cfa543d5f6d8b75fd418acd0aca9fd5f9b8eb6ef"`
[INFO] running `"docker" "rm" "-f" "ea0c47ff09e10e1fb37a98d9cfa543d5f6d8b75fd418acd0aca9fd5f9b8eb6ef"`
[INFO] [stdout] ea0c47ff09e10e1fb37a98d9cfa543d5f6d8b75fd418acd0aca9fd5f9b8eb6ef