[INFO] fetching crate enum-utils 0.1.1...
[INFO] extracting crate enum-utils 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/enum-utils/0.1.1
[INFO] extracting crate enum-utils 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/enum-utils/0.1.1
[INFO] validating manifest of enum-utils-0.1.1 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 enum-utils-0.1.1 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 enum-utils-0.1.1
[INFO] finished frobbing enum-utils-0.1.1
[INFO] frobbed toml for enum-utils-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/enum-utils/0.1.1/Cargo.toml
[INFO] started frobbing enum-utils-0.1.1
[INFO] finished frobbing enum-utils-0.1.1
[INFO] frobbed toml for enum-utils-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/enum-utils/0.1.1/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 enum-utils-0.1.1 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/enum-utils/0.1.1:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 82aebac287a802a3b6f5fb721e2a56ff038a1ef104b40b98575387c1ee66e135
[INFO] running `"docker" "start" "-a" "82aebac287a802a3b6f5fb721e2a56ff038a1ef104b40b98575387c1ee66e135"`
[INFO] [stderr]    Compiling enum-utils-from-str v0.1.0
[INFO] [stderr]    Compiling serde_derive_internals v0.24.1
[INFO] [stderr]    Compiling enum-utils v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.00s
[INFO] running `"docker" "inspect" "82aebac287a802a3b6f5fb721e2a56ff038a1ef104b40b98575387c1ee66e135"`
[INFO] running `"docker" "rm" "-f" "82aebac287a802a3b6f5fb721e2a56ff038a1ef104b40b98575387c1ee66e135"`
[INFO] [stdout] 82aebac287a802a3b6f5fb721e2a56ff038a1ef104b40b98575387c1ee66e135
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/enum-utils/0.1.1:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] ee3a91d48a8c381d6aab51a6a8561e7c80631a3b4e1e7f6fdfe99317fafd95b0
[INFO] running `"docker" "start" "-a" "ee3a91d48a8c381d6aab51a6a8561e7c80631a3b4e1e7f6fdfe99317fafd95b0"`
[INFO] [stderr]    Compiling enum-utils v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]  --> tests/iter.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(repr_align_enum)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning[E0566]: conflicting representation hints
[INFO] [stderr]   --> tests/iter.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 | #[repr(C, u16)]
[INFO] [stderr]    |        ^  ^^^
[INFO] [stderr] 60 | #[repr(align(2))]
[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 E0554`.
[INFO] [stderr] error: Could not compile `enum-utils`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ee3a91d48a8c381d6aab51a6a8561e7c80631a3b4e1e7f6fdfe99317fafd95b0"`
[INFO] running `"docker" "rm" "-f" "ee3a91d48a8c381d6aab51a6a8561e7c80631a3b4e1e7f6fdfe99317fafd95b0"`
[INFO] [stdout] ee3a91d48a8c381d6aab51a6a8561e7c80631a3b4e1e7f6fdfe99317fafd95b0