Sep 21 05:36:16.384 INFO checking polish_notation-0.1.0 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 05:36:16.384 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 05:36:16.384 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-6/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 05:36:16.611 INFO blam! 38ebd0569a0f13265ea41177530fa958b19df5af007e4a8dfd70ca69cbd71fa4
Sep 21 05:36:16.613 INFO running `"docker" "start" "-a" "38ebd0569a0f13265ea41177530fa958b19df5af007e4a8dfd70ca69cbd71fa4"`
Sep 21 05:36:17.235 INFO kablam! usermod: no changes
Sep 21 05:36:17.257 INFO kablam!     Checking polish_notation v0.1.0 (/source)
Sep 21 05:36:17.429 INFO kablam! error: recursion limit reached while expanding the macro `npn`
Sep 21 05:36:17.429 INFO kablam!   --> src/lib.rs:23:72
Sep 21 05:36:17.430 INFO kablam!    |
Sep 21 05:36:17.430 INFO kablam! 23 |     [($head:tt $($tail:tt)*) -> ($stack_head:tt + $($stack:tt)*)] => { npn!(($($tail)*) -> (($stack_head + $head) $($stack)*)) };
Sep 21 05:36:17.430 INFO kablam!    |                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 05:36:17.430 INFO kablam! ...
Sep 21 05:36:17.430 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 21 05:36:17.430 INFO kablam!    |                    ---------------------------------------------------------------------------------------------------------------------------------------------------------- in this macro invocation
Sep 21 05:36:17.430 INFO kablam!    |
Sep 21 05:36:17.430 INFO kablam!    = help: consider adding a `#![recursion_limit="128"]` attribute to your crate
Sep 21 05:36:17.430 INFO kablam! 
Sep 21 05:36:17.430 INFO kablam! error: aborting due to previous error
Sep 21 05:36:17.430 INFO kablam! 
Sep 21 05:36:17.434 INFO kablam! error: Could not compile `polish_notation`.
Sep 21 05:36:17.435 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 21 05:36:17.462 INFO kablam! error: build failed
Sep 21 05:36:17.463 INFO kablam! su: No module specific data is present
Sep 21 05:36:17.933 INFO running `"docker" "rm" "-f" "38ebd0569a0f13265ea41177530fa958b19df5af007e4a8dfd70ca69cbd71fa4"`
Sep 21 05:36:18.044 INFO blam! 38ebd0569a0f13265ea41177530fa958b19df5af007e4a8dfd70ca69cbd71fa4