Jul 12 04:34:22.222 INFO checking maud-0.17.5 against try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255 for pr-52234 Jul 12 04:34:22.222 INFO running: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets Jul 12 04:34:22.222 INFO creating container for: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets Jul 12 04:34:22.222 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-52234/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-2/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"` Jul 12 04:34:22.483 INFO blam! f34af8055a83e829832769c7ee0e59aac1f52aec36a169da79a05f7993160b79 Jul 12 04:34:22.486 INFO running `"docker" "start" "-a" "f34af8055a83e829832769c7ee0e59aac1f52aec36a169da79a05f7993160b79"` Jul 12 04:34:24.018 INFO kablam! Compiling maud_htmlescape v0.17.0 Jul 12 04:34:24.019 INFO kablam! Compiling literalext v0.1.1 Jul 12 04:34:24.050 INFO kablam! Compiling maud_lints v0.17.4 Jul 12 04:34:29.064 INFO kablam! error[E0658]: using the `?` macro Kleene operator for "at most one" repetition is unstable (see issue #48075) Jul 12 04:34:29.064 INFO kablam! --> :6:37 Jul 12 04:34:29.065 INFO kablam! | Jul 12 04:34:29.065 INFO kablam! 6 | : expr => $ edition_level : ident $ ( , ) ? ) => ( Jul 12 04:34:29.065 INFO kablam! | ^^^^^ Jul 12 04:34:29.065 INFO kablam! | Jul 12 04:34:29.065 INFO kablam! = help: add #![feature(macro_at_most_once_rep)] to the crate attributes to enable Jul 12 04:34:29.065 INFO kablam! Jul 12 04:34:29.065 INFO kablam! error[E0658]: using the `?` macro Kleene operator for "at most one" repetition is unstable (see issue #48075) Jul 12 04:34:29.065 INFO kablam! --> :1:29 Jul 12 04:34:29.065 INFO kablam! | Jul 12 04:34:29.065 INFO kablam! 1 | ( $ ( $ lint : expr ) , * $ ( , ) ? ) => { { vec ! [ $ ( $ lint ) , * ] } } Jul 12 04:34:29.065 INFO kablam! | ^^^^^ Jul 12 04:34:29.065 INFO kablam! | Jul 12 04:34:29.065 INFO kablam! = help: add #![feature(macro_at_most_once_rep)] to the crate attributes to enable Jul 12 04:34:29.065 INFO kablam! Jul 12 04:34:29.161 INFO kablam! error: aborting due to 2 previous errors Jul 12 04:34:29.161 INFO kablam! Jul 12 04:34:29.161 INFO kablam! For more information about this error, try `rustc --explain E0658`. Jul 12 04:34:29.216 INFO kablam! error: Could not compile `maud_lints`. Jul 12 04:34:29.216 INFO kablam! warning: build failed, waiting for other jobs to finish... Jul 12 04:34:30.015 INFO kablam! error: build failed Jul 12 04:34:30.025 INFO kablam! su: No module specific data is present Jul 12 04:34:30.471 INFO running `"docker" "rm" "-f" "f34af8055a83e829832769c7ee0e59aac1f52aec36a169da79a05f7993160b79"` Jul 12 04:34:30.601 INFO blam! f34af8055a83e829832769c7ee0e59aac1f52aec36a169da79a05f7993160b79