[INFO] cloning repository https://github.com/lynncyrin/galaxy-gen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lynncyrin/galaxy-gen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flynncyrin%2Fgalaxy-gen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flynncyrin%2Fgalaxy-gen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 090ac8929653767d1f79021d6503bbe85f0bcfd2
[INFO] checking lynncyrin/galaxy-gen against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flynncyrin%2Fgalaxy-gen" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lynncyrin/galaxy-gen on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/lynncyrin/galaxy-gen already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `default-features = [".."]` was found in [features]. Did you mean to use `default = [".."]`?
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded console v0.6.2
[INFO] [stderr]   Downloaded either v1.5.0
[INFO] [stderr]   Downloaded syn v0.10.8
[INFO] [stderr]   Downloaded crossbeam v0.3.2
[INFO] [stderr]   Downloaded mopa v0.2.2
[INFO] [stderr]   Downloaded iovec v0.1.2
[INFO] [stderr]   Downloaded parking_lot v0.5.5
[INFO] [stderr]   Downloaded memoffset v0.2.1
[INFO] [stderr]   Downloaded mio v0.6.16
[INFO] [stderr]   Downloaded tokio-executor v0.1.4
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.21
[INFO] [stderr]   Downloaded quote v0.6.8
[INFO] [stderr]   Downloaded take_mut v0.2.2
[INFO] [stderr]   Downloaded itoa v0.4.3
[INFO] [stderr]   Downloaded cloudabi v0.0.3
[INFO] [stderr]   Downloaded serde_derive v1.0.78
[INFO] [stderr]   Downloaded stable_deref_trait v1.1.1
[INFO] [stderr]   Downloaded ucd-util v0.1.1
[INFO] [stderr]   Downloaded tempdir v0.3.7
[INFO] [stderr]   Downloaded termcolor v0.3.6
[INFO] [stderr]   Downloaded term_size v0.3.1
[INFO] [stderr]   Downloaded fxhash v0.2.1
[INFO] [stderr]   Downloaded inotify v0.6.1
[INFO] [stderr]   Downloaded tokio-reactor v0.1.5
[INFO] [stderr]   Downloaded rayon-core v1.4.1
[INFO] [stderr]   Downloaded parking_lot v0.6.4
[INFO] [stderr]   Downloaded aho-corasick v0.6.8
[INFO] [stderr]   Downloaded inotify-sys v0.1.3
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[INFO] [stderr]   Downloaded rand v0.4.3
[INFO] [stderr]   Downloaded nix v0.11.0
[INFO] [stderr]   Downloaded filetime v0.2.1
[INFO] [stderr]   Downloaded humantime v1.1.1
[INFO] [stderr]   Downloaded fsevent-sys v0.1.6
[INFO] [stderr]   Downloaded memchr v2.0.2
[INFO] [stderr]   Downloaded smallvec v0.6.5
[INFO] [stderr]   Downloaded wincolor v1.0.1
[INFO] [stderr]   Downloaded syn v0.15.4
[INFO] [stderr]   Downloaded syn v0.12.15
[INFO] [stderr]   Downloaded lazy_static v0.2.11
[INFO] [stderr]   Downloaded wincolor v0.1.6
[INFO] [stderr]   Downloaded fnv v1.0.6
[INFO] [stderr]   Downloaded lazycell v1.1.0
[INFO] [stderr]   Downloaded arrayvec v0.4.7
[INFO] [stderr]   Downloaded slab v0.4.1
[INFO] [stderr]   Downloaded specs-derive v0.2.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.3.1
[INFO] [stderr]   Downloaded derivative v1.0.0
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.21
[INFO] [stderr]   Downloaded cc v1.0.25
[INFO] [stderr]   Downloaded term v0.5.1
[INFO] [stderr]   Downloaded slog-term v2.4.0
[INFO] [stderr]   Downloaded walkdir v2.2.5
[INFO] [stderr]   Downloaded console_error_panic_hook v0.1.5
[INFO] [stderr]   Downloaded clicolors-control v0.2.0
[INFO] [stderr]   Downloaded lock_api v0.1.3
[INFO] [stderr]   Downloaded rand v0.5.5
[INFO] [stderr]   Downloaded fsevent v0.2.17
[INFO] [stderr]   Downloaded failure v0.1.2
[INFO] [stderr]   Downloaded os_type v2.0.0
[INFO] [stderr]   Downloaded nodrop v0.1.12
[INFO] [stderr]   Downloaded hibitset v0.5.2
[INFO] [stderr]   Downloaded specs v0.12.2
[INFO] [stderr]   Downloaded bytes v0.4.10
[INFO] [stderr]   Downloaded crossbeam-deque v0.2.0
[INFO] [stderr]   Downloaded num_cpus v1.8.0
[INFO] [stderr]   Downloaded net2 v0.2.33
[INFO] [stderr]   Downloaded futures v0.1.24
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.21
[INFO] [stderr]   Downloaded regex-syntax v0.6.2
[INFO] [stderr]   Downloaded globset v0.4.2
[INFO] [stderr]   Downloaded log v0.4.5
[INFO] [stderr]   Downloaded env_logger v0.5.13
[INFO] [stderr]   Downloaded mio-extras v2.0.5
[INFO] [stderr]   Downloaded shred-derive v0.5.0
[INFO] [stderr]   Downloaded notify v4.0.6
[INFO] [stderr]   Downloaded winapi-util v0.1.1
[INFO] [stderr]   Downloaded same-file v1.0.3
[INFO] [stderr]   Downloaded remove_dir_all v0.5.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.9
[INFO] [stderr]   Downloaded itertools v0.5.10
[INFO] [stderr]   Downloaded rayon v1.0.2
[INFO] [stderr]   Downloaded glob v0.2.11
[INFO] [stderr]   Downloaded crossbeam-utils v0.5.0
[INFO] [stderr]   Downloaded wasm-pack v0.4.2
[INFO] [stderr]   Downloaded cargo-watch v7.0.4
[INFO] [stderr]   Downloaded toml v0.4.6
[INFO] [stderr]   Downloaded version_check v0.1.4
[INFO] [stderr]   Downloaded human-panic v1.0.1
[INFO] [stderr]   Downloaded ryu v0.2.6
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.21
[INFO] [stderr]   Downloaded regex v1.0.5
[INFO] [stderr]   Downloaded utf8-ranges v1.0.1
[INFO] [stderr]   Downloaded indicatif v0.9.0
[INFO] [stderr]   Downloaded slog v2.3.3
[INFO] [stderr]   Downloaded libc v0.2.43
[INFO] [stderr]   Downloaded proc-macro2 v0.2.3
[INFO] [stderr]   Downloaded tuple_utils v0.2.0
[INFO] [stderr]   Downloaded shrev v1.0.1
[INFO] [stderr]   Downloaded synstructure v0.9.0
[INFO] [stderr]   Downloaded parking_lot_core v0.3.1
[INFO] [stderr]   Downloaded void v1.0.2
[INFO] [stderr]   Downloaded parking_lot_core v0.2.14
[INFO] [stderr]   Downloaded wee_alloc v0.4.2
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded cfg-if v0.1.5
[INFO] [stderr]   Downloaded termcolor v1.0.3
[INFO] [stderr]   Downloaded serde v1.0.78
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded backtrace v0.3.9
[INFO] [stderr]   Downloaded uuid v0.6.5
[INFO] [stderr]   Downloaded slog-async v2.3.0
[INFO] [stderr]   Downloaded backtrace-sys v0.1.24
[INFO] [stderr]   Downloaded num-integer v0.1.39
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.21
[INFO] [stderr]   Downloaded crossbeam-utils v0.2.2
[INFO] [stderr]   Downloaded unreachable v1.0.0
[INFO] [stderr]   Downloaded quote v0.4.2
[INFO] [stderr]   Downloaded atom v0.3.5
[INFO] [stderr]   Downloaded rand_core v0.2.1
[INFO] [stderr]   Downloaded winapi v0.3.5
[INFO] [stderr]   Downloaded lazy_static v1.1.0
[INFO] [stderr]   Downloaded isatty v0.1.9
[INFO] [stderr]   Downloaded failure_derive v0.1.2
[INFO] [stderr]   Downloaded proc-macro2 v0.4.19
[INFO] [stderr]   Downloaded termios v0.3.0
[INFO] [stderr]   Downloaded owning_ref v0.3.3
[INFO] [stderr]   Downloaded scopeguard v0.3.3
[INFO] [stderr]   Downloaded serde_json v1.0.27
[INFO] [stderr]   Downloaded chrono v0.4.6
[INFO] [stderr]   Downloaded num-traits v0.2.5
[INFO] [stderr]   Downloaded time v0.1.40
[INFO] [stderr]   Downloaded byteorder v1.2.6
[INFO] [stderr]   Downloaded redox_syscall v0.1.40
[INFO] [stderr]   Downloaded structopt-derive v0.2.10
[INFO] [stderr]   Downloaded structopt v0.2.10
[INFO] [stderr]   Downloaded syn v0.14.9
[INFO] [stderr]   Downloaded tokio-io v0.1.8
[INFO] [stderr]   Downloaded watchexec v1.9.2
[INFO] [stderr]   Downloaded shred v0.7.0
[INFO] [stderr]   Downloaded quick-error v1.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b80ea4e606976f2b0d4f0e90f75ccd1be2a5b60dc8d3fb29ab439fc29507a29
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2b80ea4e606976f2b0d4f0e90f75ccd1be2a5b60dc8d3fb29ab439fc29507a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b80ea4e606976f2b0d4f0e90f75ccd1be2a5b60dc8d3fb29ab439fc29507a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b80ea4e606976f2b0d4f0e90f75ccd1be2a5b60dc8d3fb29ab439fc29507a29", kill_on_drop: false }`
[INFO] [stdout] 2b80ea4e606976f2b0d4f0e90f75ccd1be2a5b60dc8d3fb29ab439fc29507a29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee143520b46cd551929ac802d08de9eb1e3582f59dde8543a56e13378d79807f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ee143520b46cd551929ac802d08de9eb1e3582f59dde8543a56e13378d79807f", kill_on_drop: false }`
[INFO] [stderr] warning: `default-features = [".."]` was found in [features]. Did you mean to use `default = [".."]`?
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling serde v1.0.78
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.21
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking slog v2.3.3
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling wasm-bindgen v0.2.21
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]     Checking tuple_utils v0.2.0
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking termios v0.3.0
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]    Compiling syn v0.15.4
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking regex v1.0.5
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling shred-derive v0.5.0
[INFO] [stderr]     Checking console v0.6.2
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]     Checking os_type v2.0.0
[INFO] [stderr]     Checking indicatif v0.9.0
[INFO] [stderr]    Compiling derivative v1.0.0
[INFO] [stderr]    Compiling specs-derive v0.2.0
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking hibitset v0.5.2
[INFO] [stderr]     Checking shred v0.7.0
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking serde_json v1.0.27
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling serde_derive v1.0.78
[INFO] [stderr]     Checking shrev v1.0.1
[INFO] [stderr]     Checking specs v0.12.2
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking human-panic v1.0.1
[INFO] [stderr]     Checking wasm-pack v0.4.2
[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]     Checking galaxy_gen_backend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/rust/lib.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extern_prelude, custom_attribute)]
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/rust/lib.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extern_prelude, custom_attribute)]
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/rust/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extern_prelude, custom_attribute)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Builder`, `DispatcherBuilder`, `RunNow`, `World`
[INFO] [stdout]   --> src/rust/galaxyecs.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 | use specs::{Builder, DispatcherBuilder, RunNow, World};
[INFO] [stdout]    |             ^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/rust/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extern_prelude, custom_attribute)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `galaxy_gen_backend`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ee143520b46cd551929ac802d08de9eb1e3582f59dde8543a56e13378d79807f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee143520b46cd551929ac802d08de9eb1e3582f59dde8543a56e13378d79807f", kill_on_drop: false }`
[INFO] [stdout] ee143520b46cd551929ac802d08de9eb1e3582f59dde8543a56e13378d79807f
