[INFO] fetching crate facade-protocol 0.1.0...
[INFO] extracting crate facade-protocol 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/facade-protocol/0.1.0
[INFO] extracting crate facade-protocol 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/facade-protocol/0.1.0
[INFO] validating manifest of facade-protocol-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 facade-protocol-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 facade-protocol-0.1.0
[INFO] finished frobbing facade-protocol-0.1.0
[INFO] frobbed toml for facade-protocol-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/facade-protocol/0.1.0/Cargo.toml
[INFO] started frobbing facade-protocol-0.1.0
[INFO] finished frobbing facade-protocol-0.1.0
[INFO] frobbed toml for facade-protocol-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/facade-protocol/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 facade-protocol-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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/facade-protocol/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] e99062188edd2de8e4c252f8283b858bc2be57cbf76a550d07e0abf6fda81af8
[INFO] running `"docker" "start" "-a" "e99062188edd2de8e4c252f8283b858bc2be57cbf76a550d07e0abf6fda81af8"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling bigdecimal v0.1.0
[INFO] [stderr]    Compiling facade-protocol v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: enum variants on type aliases are experimental
[INFO] [stderr]   --> src/lib.rs:93:9
[INFO] [stderr]    |
[INFO] [stderr] 93 |         Self::Bind(bind)
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: enum variants on type aliases are experimental
[INFO] [stderr]   --> src/lib.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |         Self::Control(control)
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: enum variants on type aliases are experimental
[INFO] [stderr]    --> src/lib.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |         Self::Container(Box::new(container))
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `facade-protocol`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e99062188edd2de8e4c252f8283b858bc2be57cbf76a550d07e0abf6fda81af8"`
[INFO] running `"docker" "rm" "-f" "e99062188edd2de8e4c252f8283b858bc2be57cbf76a550d07e0abf6fda81af8"`
[INFO] [stdout] e99062188edd2de8e4c252f8283b858bc2be57cbf76a550d07e0abf6fda81af8