Jul 12 04:34:08.831 INFO checking maud_lints-0.17.4 against try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255 for pr-52234
Jul 12 04:34:08.831 INFO running: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 12 04:34:08.831 INFO creating container for: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 12 04:34:08.831 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-52234/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-0/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 04:34:09.095 INFO blam! 3f090ddbea5cbc47520841b0bf3070566841f2f3db5cc8f400edbb639d8c69ff
Jul 12 04:34:09.096 INFO running `"docker" "start" "-a" "3f090ddbea5cbc47520841b0bf3070566841f2f3db5cc8f400edbb639d8c69ff"`
Jul 12 04:34:09.978 INFO kablam!     Checking if_chain v0.1.2
Jul 12 04:34:10.179 INFO kablam!     Checking maud_lints v0.17.4 (file:///source)
Jul 12 04:34:14.326 INFO kablam! error[E0658]: using the `?` macro Kleene operator for "at most one" repetition is unstable (see issue #48075)
Jul 12 04:34:14.326 INFO kablam!  --> <declare_lint macros>:6:37
Jul 12 04:34:14.326 INFO kablam!   |
Jul 12 04:34:14.326 INFO kablam! 6 | : expr => $ edition_level : ident $ ( , ) ? ) => (
Jul 12 04:34:14.326 INFO kablam!   |                                     ^^^^^
Jul 12 04:34:14.326 INFO kablam!   |
Jul 12 04:34:14.327 INFO kablam!   = help: add #![feature(macro_at_most_once_rep)] to the crate attributes to enable
Jul 12 04:34:14.327 INFO kablam! 
Jul 12 04:34:14.328 INFO kablam! error[E0658]: using the `?` macro Kleene operator for "at most one" repetition is unstable (see issue #48075)
Jul 12 04:34:14.328 INFO kablam!  --> <lint_array macros>:1:29
Jul 12 04:34:14.328 INFO kablam!   |
Jul 12 04:34:14.328 INFO kablam! 1 | ( $ ( $ lint : expr ) , * $ ( , ) ? ) => { { vec ! [ $ ( $ lint ) , * ] } }
Jul 12 04:34:14.328 INFO kablam!   |                             ^^^^^
Jul 12 04:34:14.329 INFO kablam!   |
Jul 12 04:34:14.329 INFO kablam!   = help: add #![feature(macro_at_most_once_rep)] to the crate attributes to enable
Jul 12 04:34:14.330 INFO kablam! 
Jul 12 04:34:14.369 INFO kablam! error: aborting due to 2 previous errors
Jul 12 04:34:14.370 INFO kablam! 
Jul 12 04:34:14.370 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Jul 12 04:34:14.388 INFO kablam! error: Could not compile `maud_lints`.
Jul 12 04:34:14.389 INFO kablam! warning: build failed, waiting for other jobs to finish...
Jul 12 04:34:14.598 INFO kablam! error[E0658]: using the `?` macro Kleene operator for "at most one" repetition is unstable (see issue #48075)
Jul 12 04:34:14.598 INFO kablam!  --> <declare_lint macros>:6:37
Jul 12 04:34:14.598 INFO kablam!   |
Jul 12 04:34:14.598 INFO kablam! 6 | : expr => $ edition_level : ident $ ( , ) ? ) => (
Jul 12 04:34:14.598 INFO kablam!   |                                     ^^^^^
Jul 12 04:34:14.606 INFO kablam!   |
Jul 12 04:34:14.606 INFO kablam!   = help: add #![feature(macro_at_most_once_rep)] to the crate attributes to enable
Jul 12 04:34:14.606 INFO kablam! 
Jul 12 04:34:14.607 INFO kablam! error[E0658]: using the `?` macro Kleene operator for "at most one" repetition is unstable (see issue #48075)
Jul 12 04:34:14.607 INFO kablam!  --> <lint_array macros>:1:29
Jul 12 04:34:14.607 INFO kablam!   |
Jul 12 04:34:14.607 INFO kablam! 1 | ( $ ( $ lint : expr ) , * $ ( , ) ? ) => { { vec ! [ $ ( $ lint ) , * ] } }
Jul 12 04:34:14.607 INFO kablam!   |                             ^^^^^
Jul 12 04:34:14.607 INFO kablam!   |
Jul 12 04:34:14.607 INFO kablam!   = help: add #![feature(macro_at_most_once_rep)] to the crate attributes to enable
Jul 12 04:34:14.607 INFO kablam! 
Jul 12 04:34:14.643 INFO kablam! error: aborting due to 2 previous errors
Jul 12 04:34:14.643 INFO kablam! 
Jul 12 04:34:14.643 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Jul 12 04:34:14.664 INFO kablam! error: Could not compile `maud_lints`.
Jul 12 04:34:14.664 INFO kablam! 
Jul 12 04:34:14.664 INFO kablam! To learn more, run the command again with --verbose.
Jul 12 04:34:14.665 INFO kablam! su: No module specific data is present
Jul 12 04:34:15.144 INFO running `"docker" "rm" "-f" "3f090ddbea5cbc47520841b0bf3070566841f2f3db5cc8f400edbb639d8c69ff"`
Jul 12 04:34:15.311 INFO blam! 3f090ddbea5cbc47520841b0bf3070566841f2f3db5cc8f400edbb639d8c69ff