Sep 10 12:49:05.836 INFO checking polish_notation-0.1.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 12:49:05.836 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 12:49:05.836 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-2/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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=1000" "-e" "CMD=cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 12:49:06.029 INFO blam! 82e3fc9b068a5616049e271ce35cfe789ad7e8668362b86dd233954ac5930990
Sep 10 12:49:06.031 INFO running `"docker" "start" "-a" "82e3fc9b068a5616049e271ce35cfe789ad7e8668362b86dd233954ac5930990"`
Sep 10 12:49:06.553 INFO kablam! usermod: no changes
Sep 10 12:49:06.590 INFO kablam!     Checking polish_notation v0.1.0 (file:///source)
Sep 10 12:49:06.877 INFO kablam! error: recursion limit reached while expanding the macro `npn`
Sep 10 12:49:06.877 INFO kablam!   --> src/lib.rs:23:72
Sep 10 12:49:06.877 INFO kablam!    |
Sep 10 12:49:06.877 INFO kablam! 23 |     [($head:tt $($tail:tt)*) -> ($stack_head:tt + $($stack:tt)*)] => { npn!(($($tail)*) -> (($stack_head + $head) $($stack)*)) };
Sep 10 12:49:06.877 INFO kablam!    |                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 12:49:06.877 INFO kablam! ...
Sep 10 12:49:06.877 INFO kablam! 49 |         assert_eq!(npn!(+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32), 528);
Sep 10 12:49:06.877 INFO kablam!    |                    ---------------------------------------------------------------------------------------------------------------------------------------------------------- in this macro invocation
Sep 10 12:49:06.877 INFO kablam!    |
Sep 10 12:49:06.877 INFO kablam!    = help: consider adding a `#![recursion_limit="128"]` attribute to your crate
Sep 10 12:49:06.877 INFO kablam! 
Sep 10 12:49:06.877 INFO kablam! error: aborting due to previous error
Sep 10 12:49:06.877 INFO kablam! 
Sep 10 12:49:06.883 INFO kablam! error: Could not compile `polish_notation`.
Sep 10 12:49:06.883 INFO kablam! 
Sep 10 12:49:06.883 INFO kablam! To learn more, run the command again with --verbose.
Sep 10 12:49:06.885 INFO kablam! su: No module specific data is present
Sep 10 12:49:07.501 INFO running `"docker" "rm" "-f" "82e3fc9b068a5616049e271ce35cfe789ad7e8668362b86dd233954ac5930990"`
Sep 10 12:49:07.593 INFO blam! 82e3fc9b068a5616049e271ce35cfe789ad7e8668362b86dd233954ac5930990