Sep 17 19:52:42.217 INFO checking polish_notation-0.1.0 against master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690 for pr-54033
Sep 17 19:52:42.217 INFO running: cargo +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets
Sep 17 19:52:42.217 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54033/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-3/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/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 +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 19:52:42.392 INFO blam! 55c48078167d63a6dacfe5b33f643b02b91ee46673539ef2ff478f3e6b89e417
Sep 17 19:52:42.394 INFO running `"docker" "start" "-a" "55c48078167d63a6dacfe5b33f643b02b91ee46673539ef2ff478f3e6b89e417"`
Sep 17 19:52:43.038 INFO kablam! usermod: no changes
Sep 17 19:52:43.077 INFO kablam!     Checking polish_notation v0.1.0 (/source)
Sep 17 19:52:43.341 INFO kablam! error: recursion limit reached while expanding the macro `npn`
Sep 17 19:52:43.341 INFO kablam!   --> src/lib.rs:23:72
Sep 17 19:52:43.341 INFO kablam!    |
Sep 17 19:52:43.341 INFO kablam! 23 |     [($head:tt $($tail:tt)*) -> ($stack_head:tt + $($stack:tt)*)] => { npn!(($($tail)*) -> (($stack_head + $head) $($stack)*)) };
Sep 17 19:52:43.341 INFO kablam!    |                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 17 19:52:43.341 INFO kablam! ...
Sep 17 19:52:43.341 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 17 19:52:43.341 INFO kablam!    |                    ---------------------------------------------------------------------------------------------------------------------------------------------------------- in this macro invocation
Sep 17 19:52:43.341 INFO kablam!    |
Sep 17 19:52:43.341 INFO kablam!    = help: consider adding a `#![recursion_limit="128"]` attribute to your crate
Sep 17 19:52:43.341 INFO kablam! 
Sep 17 19:52:43.343 INFO kablam! error: aborting due to previous error
Sep 17 19:52:43.343 INFO kablam! 
Sep 17 19:52:43.349 INFO kablam! error: Could not compile `polish_notation`.
Sep 17 19:52:43.350 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 17 19:52:43.358 INFO kablam! error: build failed
Sep 17 19:52:43.358 INFO kablam! su: No module specific data is present
Sep 17 19:52:44.029 INFO running `"docker" "rm" "-f" "55c48078167d63a6dacfe5b33f643b02b91ee46673539ef2ff478f3e6b89e417"`
Sep 17 19:52:44.251 INFO blam! 55c48078167d63a6dacfe5b33f643b02b91ee46673539ef2ff478f3e6b89e417