[INFO] crate polish_notation 0.1.0 is already in cache
[INFO] extracting crate polish_notation 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/polish_notation/0.1.0
[INFO] extracting crate polish_notation 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/polish_notation/0.1.0
[INFO] validating manifest of polish_notation-0.1.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of polish_notation-0.1.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing polish_notation-0.1.0
[INFO] finished frobbing polish_notation-0.1.0
[INFO] frobbed toml for polish_notation-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/polish_notation/0.1.0/Cargo.toml
[INFO] started frobbing polish_notation-0.1.0
[INFO] finished frobbing polish_notation-0.1.0
[INFO] frobbed toml for polish_notation-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/polish_notation/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing polish_notation-0.1.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/polish_notation/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 36d5b703018d53b64b36d006c9b2be6f10fa1c7ddd6ca3cdc5da0306a0d402b6
[INFO] running `"docker" "start" "-a" "36d5b703018d53b64b36d006c9b2be6f10fa1c7ddd6ca3cdc5da0306a0d402b6"`
[INFO] [stderr]    Compiling polish_notation v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `"docker" "inspect" "36d5b703018d53b64b36d006c9b2be6f10fa1c7ddd6ca3cdc5da0306a0d402b6"`
[INFO] running `"docker" "rm" "-f" "36d5b703018d53b64b36d006c9b2be6f10fa1c7ddd6ca3cdc5da0306a0d402b6"`
[INFO] [stdout] 36d5b703018d53b64b36d006c9b2be6f10fa1c7ddd6ca3cdc5da0306a0d402b6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/polish_notation/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9f8398491346bb8bae1ba6aa909579b48b75aa8569674d0777200839183910b3
[INFO] running `"docker" "start" "-a" "9f8398491346bb8bae1ba6aa909579b48b75aa8569674d0777200839183910b3"`
[INFO] [stderr]    Compiling polish_notation v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: recursion limit reached while expanding the macro `npn`
[INFO] [stderr]   --> src/lib.rs:23:72
[INFO] [stderr]    |
[INFO] [stderr] 23 |     [($head:tt $($tail:tt)*) -> ($stack_head:tt + $($stack:tt)*)] => { npn!(($($tail)*) -> (($stack_head + $head) $($stack)*)) };
[INFO] [stderr]    |                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 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);
[INFO] [stderr]    |                    ---------------------------------------------------------------------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#![recursion_limit="128"]` attribute to your crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `polish_notation`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9f8398491346bb8bae1ba6aa909579b48b75aa8569674d0777200839183910b3"`
[INFO] running `"docker" "rm" "-f" "9f8398491346bb8bae1ba6aa909579b48b75aa8569674d0777200839183910b3"`
[INFO] [stdout] 9f8398491346bb8bae1ba6aa909579b48b75aa8569674d0777200839183910b3