[INFO] crate sc2-proxy 0.1.0 is already in cache
[INFO] testing sc2-proxy-0.1.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate sc2-proxy 0.1.0 into work/builds/worker-2/source
[INFO] validating manifest of crates.io crate sc2-proxy 0.1.0 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 crates.io crate sc2-proxy 0.1.0
[INFO] finished tweaking crates.io crate sc2-proxy 0.1.0
[INFO] tweaked toml for crates.io crate sc2-proxy 0.1.0 written to work/builds/worker-2/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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] ccf5a05904c2fe39bb9eba8f8aa9fd20302d556fe888542d4a87d568484b9519
[INFO] running `"docker" "start" "-a" "ccf5a05904c2fe39bb9eba8f8aa9fd20302d556fe888542d4a87d568484b9519"`
[INFO] [stderr]    Compiling protobuf v2.8.1
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling portpicker v0.1.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling dotenv v0.13.0
[INFO] [stderr]    Compiling tokio-tls v0.2.1
[INFO] [stderr]    Compiling websocket v0.22.4
[INFO] [stderr]    Compiling protobuf-codegen v2.8.1
[INFO] [stderr]    Compiling protoc-rust v2.8.1
[INFO] [stderr]    Compiling sc2-proto v0.2.1
[INFO] [stderr]    Compiling sc2-proxy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(type_alias_enum_variants)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `RequestJoinGame` is imported redundantly
[INFO] [stderr]    --> src/game/lobby.rs:131:42
[INFO] [stderr]     |
[INFO] [stderr] 6   | use sc2_proto::sc2api::RequestJoinGame;
[INFO] [stderr]     |     ---------------------------------- the item `RequestJoinGame` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 131 |         use sc2_proto::sc2api::{Request, RequestJoinGame};
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game/mod.rs:19:39
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn any_panic_to_string(panic_msg: Box<Any>) -> String {
[INFO] [stderr]    |                                       ^^^ help: use `dyn`: `dyn Any`
[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 `sc2-proxy`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ccf5a05904c2fe39bb9eba8f8aa9fd20302d556fe888542d4a87d568484b9519"`
[INFO] running `"docker" "rm" "-f" "ccf5a05904c2fe39bb9eba8f8aa9fd20302d556fe888542d4a87d568484b9519"`
[INFO] [stdout] ccf5a05904c2fe39bb9eba8f8aa9fd20302d556fe888542d4a87d568484b9519