[INFO] fetching crate wc-bg 0.3.0...
[INFO] extracting crate wc-bg 0.3.0 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/wc-bg/0.3.0
[INFO] extracting crate wc-bg 0.3.0 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/wc-bg/0.3.0
[INFO] validating manifest of wc-bg-0.3.0 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wc-bg-0.3.0 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wc-bg-0.3.0
[INFO] finished frobbing wc-bg-0.3.0
[INFO] frobbed toml for wc-bg-0.3.0 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/wc-bg/0.3.0/Cargo.toml
[INFO] started frobbing wc-bg-0.3.0
[INFO] finished frobbing wc-bg-0.3.0
[INFO] frobbed toml for wc-bg-0.3.0 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/wc-bg/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking wc-bg-0.3.0 against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/wc-bg/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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=forbid" "-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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 050465117c8e39a28b23eb9304c79e359b3ca70896bd7ab07eb4744d1a480f50
[INFO] running `"docker" "start" "-a" "050465117c8e39a28b23eb9304c79e359b3ca70896bd7ab07eb4744d1a480f50"`
[INFO] [stderr]    Compiling wc-bg v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking image v0.10.4
[INFO] [stderr]     Checking wayland-sys v0.9.10
[INFO] [stderr]     Checking wayland-client v0.9.10
[INFO] [stderr]     Checking way-cooler-client-helpers v0.1.0
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> <::wayland_client::env::wayland_env macros>:29:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | __impl $ name : ident , $ ( $ global_name : ident : $ global_type : path ) , +
[INFO] [stderr]    |                                                                              - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 29 | let $ global_name = {
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 33 | None => return None , Some ( i ) => my_globals . swap_remove ( i ) } } ; ) * $
[INFO] [stderr]    |                                                                            - conflicting repetition
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(meta_variable_misuse)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> <::wayland_client::env::wayland_env macros>:30:15
[INFO] [stderr]    |
[INFO] [stderr] 18 | __impl $ name : ident , $ ( $ global_name : ident : $ global_type : path ) , +
[INFO] [stderr]    |                                                                              - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 30 | let iname = < $ global_type as $ crate :: Proxy > :: interface_name (  ) ; let
[INFO] [stderr]    |               ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 33 | None => return None , Some ( i ) => my_globals . swap_remove ( i ) } } ; ) * $
[INFO] [stderr]    |                                                                            - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> <::wayland_client::env::wayland_env macros>:29:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | __impl $ name : ident , $ ( $ global_name : ident : $ global_type : path ) , +
[INFO] [stderr]    |                                                                              - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 29 | let $ global_name = {
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 33 | None => return None , Some ( i ) => my_globals . swap_remove ( i ) } } ; ) * $
[INFO] [stderr]    |                                                                            - conflicting repetition
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(meta_variable_misuse)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> <::wayland_client::env::wayland_env macros>:30:15
[INFO] [stderr]    |
[INFO] [stderr] 18 | __impl $ name : ident , $ ( $ global_name : ident : $ global_type : path ) , +
[INFO] [stderr]    |                                                                              - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 30 | let iname = < $ global_type as $ crate :: Proxy > :: interface_name (  ) ; let
[INFO] [stderr]    |               ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 33 | None => return None , Some ( i ) => my_globals . swap_remove ( i ) } } ; ) * $
[INFO] [stderr]    |                                                                            - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `wc-bg`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `wc-bg`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "050465117c8e39a28b23eb9304c79e359b3ca70896bd7ab07eb4744d1a480f50"`
[INFO] running `"docker" "rm" "-f" "050465117c8e39a28b23eb9304c79e359b3ca70896bd7ab07eb4744d1a480f50"`
[INFO] [stdout] 050465117c8e39a28b23eb9304c79e359b3ca70896bd7ab07eb4744d1a480f50