[INFO] crate tylar 0.2.2 is already in cache
[INFO] extracting crate tylar 0.2.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/tylar/0.2.2
[INFO] extracting crate tylar 0.2.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tylar/0.2.2
[INFO] validating manifest of tylar-0.2.2 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 tylar-0.2.2 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 tylar-0.2.2
[INFO] finished frobbing tylar-0.2.2
[INFO] frobbed toml for tylar-0.2.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/tylar/0.2.2/Cargo.toml
[INFO] started frobbing tylar-0.2.2
[INFO] finished frobbing tylar-0.2.2
[INFO] frobbed toml for tylar-0.2.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tylar/0.2.2/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 tylar-0.2.2 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tylar/0.2.2:/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] 59f0b9a629f1f506e96c278fcb5ab6a1f62703b0f0ecde6bc617353026e784f2
[INFO] running `"docker" "start" "-a" "59f0b9a629f1f506e96c278fcb5ab6a1f62703b0f0ecde6bc617353026e784f2"`
[INFO] [stderr]    Compiling tylar v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: type alias is never used: `Plus5`
[INFO] [stderr]    --> src/lib.rs:204:1
[INFO] [stderr]     |
[INFO] [stderr] 204 | type Plus5<N> = Succ<Succ<Succ<Succ<Succ<N>>>>>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Plus10`
[INFO] [stderr]    --> src/lib.rs:205:1
[INFO] [stderr]     |
[INFO] [stderr] 205 | type Plus10<N> = Plus5<Plus5<N>>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Plus50`
[INFO] [stderr]    --> src/lib.rs:206:1
[INFO] [stderr]     |
[INFO] [stderr] 206 | type Plus50<N> = Plus10<Plus10<Plus10<Plus10<Plus10<N>>>>>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `"docker" "inspect" "59f0b9a629f1f506e96c278fcb5ab6a1f62703b0f0ecde6bc617353026e784f2"`
[INFO] running `"docker" "rm" "-f" "59f0b9a629f1f506e96c278fcb5ab6a1f62703b0f0ecde6bc617353026e784f2"`
[INFO] [stdout] 59f0b9a629f1f506e96c278fcb5ab6a1f62703b0f0ecde6bc617353026e784f2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tylar/0.2.2:/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] c42f975fb22e39bca29e5bbc69d945dd5a24dc7628585f56c3aa9cf54471c038
[INFO] running `"docker" "start" "-a" "c42f975fb22e39bca29e5bbc69d945dd5a24dc7628585f56c3aa9cf54471c038"`
[INFO] [stderr]    Compiling tylar v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] error[E0275]: overflow evaluating the requirement `Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Succ<Zero>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>: Halve`
[INFO] [stderr]    --> src/lib.rs:259:21
[INFO] [stderr]     |
[INFO] [stderr] 259 |     assert_eq!( 50, halve::<Plus50<Plus50<Zero>>,_>());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider adding a `#![recursion_limit="128"]` attribute to your crate
[INFO] [stderr] note: required by `operations::halve`
[INFO] [stderr]    --> src/lib.rs:245:5
[INFO] [stderr]     |
[INFO] [stderr] 245 |     fn halve<A: NumType, Out: NumType>() -> i32 where A: Halve<Out=Out> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0275`.
[INFO] [stderr] error: Could not compile `tylar`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c42f975fb22e39bca29e5bbc69d945dd5a24dc7628585f56c3aa9cf54471c038"`
[INFO] running `"docker" "rm" "-f" "c42f975fb22e39bca29e5bbc69d945dd5a24dc7628585f56c3aa9cf54471c038"`
[INFO] [stdout] c42f975fb22e39bca29e5bbc69d945dd5a24dc7628585f56c3aa9cf54471c038