[INFO] crate fun 0.0.1 is already in cache
[INFO] extracting crate fun 0.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/fun/0.0.1
[INFO] extracting crate fun 0.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fun/0.0.1
[INFO] validating manifest of fun-0.0.1 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fun-0.0.1 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fun-0.0.1
[INFO] finished frobbing fun-0.0.1
[INFO] frobbed toml for fun-0.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/fun/0.0.1/Cargo.toml
[INFO] started frobbing fun-0.0.1
[INFO] finished frobbing fun-0.0.1
[INFO] frobbed toml for fun-0.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fun/0.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing fun-0.0.1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fun/0.0.1:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e1c4839300617cf21b80d5416e7c5845fc0000fc3a39aa57c55975df3b0973da
[INFO] running `"docker" "start" "-a" "e1c4839300617cf21b80d5416e7c5845fc0000fc3a39aa57c55975df3b0973da"`
[INFO] [stderr]    Compiling fun v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error: expected argument name, found `:`
[INFO] [stderr]   --> src/data/either.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |     elim(|&: a| { Ok(a) },
[INFO] [stderr]    |            ^ expected argument name
[INFO] [stderr] 
[INFO] [stderr] error: expected argument name, found `:`
[INFO] [stderr]   --> src/data/maybe.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 |          |&: a| { Option::Some(a) },
[INFO] [stderr]    |            ^ expected argument name
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/data/either.rs:10:10
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[derive(Show)]
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Rand` in this scope
[INFO] [stderr]  --> src/data/either.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[derive(Rand)]
[INFO] [stderr]   |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/data/maybe.rs:10:10
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[derive(Show)]
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Rand` in this scope
[INFO] [stderr]  --> src/data/maybe.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[derive(Rand)]
[INFO] [stderr]   |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]  --> src/data/void.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[derive(Show)]
[INFO] [stderr]   |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(unboxed_closures)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'core_intrinsics': intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
[INFO] [stderr]   --> src/data/void.rs:14:14
[INFO] [stderr]    |
[INFO] [stderr] 14 |     unsafe { ::std::intrinsics::unreachable() }
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0194]: type parameter `A` shadows another type parameter of the same name
[INFO] [stderr]   --> src/data/either.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl<A, B> Either<A, B> {
[INFO] [stderr]    |      - first `A` declared here
[INFO] [stderr] 28 |     #[inline]
[INFO] [stderr] 29 |     pub fn elim<A, B, R, FL, FR>(inl: FL, inr: FR, m: Either<A, B>) -> R where
[INFO] [stderr]    |                 ^ shadows another type parameter
[INFO] [stderr] 
[INFO] [stderr] error[E0194]: type parameter `B` shadows another type parameter of the same name
[INFO] [stderr]   --> src/data/either.rs:29:20
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl<A, B> Either<A, B> {
[INFO] [stderr]    |         - first `B` declared here
[INFO] [stderr] 28 |     #[inline]
[INFO] [stderr] 29 |     pub fn elim<A, B, R, FL, FR>(inl: FL, inr: FR, m: Either<A, B>) -> R where
[INFO] [stderr]    |                    ^ shadows another type parameter
[INFO] [stderr] 
[INFO] [stderr] error[E0194]: type parameter `A` shadows another type parameter of the same name
[INFO] [stderr]   --> src/data/maybe.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 24 | impl<A> Maybe<A> {
[INFO] [stderr]    |      - first `A` declared here
[INFO] [stderr] 25 |     #[inline]
[INFO] [stderr] 26 |     pub fn elim<A, R, F: Fn(A) -> R>(none: R, some: F, m: Maybe<A>) -> R {
[INFO] [stderr]    |                 ^ shadows another type parameter
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0194, E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0194`.
[INFO] [stderr] error: Could not compile `fun`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e1c4839300617cf21b80d5416e7c5845fc0000fc3a39aa57c55975df3b0973da"`
[INFO] running `"docker" "rm" "-f" "e1c4839300617cf21b80d5416e7c5845fc0000fc3a39aa57c55975df3b0973da"`
[INFO] [stdout] e1c4839300617cf21b80d5416e7c5845fc0000fc3a39aa57c55975df3b0973da