[INFO] crate byte_struct 0.4.2 is already in cache
[INFO] extracting crate byte_struct 0.4.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/byte_struct/0.4.2
[INFO] extracting crate byte_struct 0.4.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/byte_struct/0.4.2
[INFO] validating manifest of byte_struct-0.4.2 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 byte_struct-0.4.2 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 byte_struct-0.4.2
[INFO] finished frobbing byte_struct-0.4.2
[INFO] frobbed toml for byte_struct-0.4.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/byte_struct/0.4.2/Cargo.toml
[INFO] started frobbing byte_struct-0.4.2
[INFO] finished frobbing byte_struct-0.4.2
[INFO] frobbed toml for byte_struct-0.4.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/byte_struct/0.4.2/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 byte_struct-0.4.2 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/byte_struct/0.4.2:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] da2303a31dc747d6a817de5257b117fe3d4f674961e0c94e9054bc31e7bf9763
[INFO] running `"docker" "start" "-a" "da2303a31dc747d6a817de5257b117fe3d4f674961e0c94e9054bc31e7bf9763"`
[INFO] [stderr]    Compiling byte_struct_derive v0.4.2
[INFO] [stderr]    Compiling byte_struct v0.4.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.85s
[INFO] running `"docker" "inspect" "da2303a31dc747d6a817de5257b117fe3d4f674961e0c94e9054bc31e7bf9763"`
[INFO] running `"docker" "rm" "-f" "da2303a31dc747d6a817de5257b117fe3d4f674961e0c94e9054bc31e7bf9763"`
[INFO] [stdout] da2303a31dc747d6a817de5257b117fe3d4f674961e0c94e9054bc31e7bf9763
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/byte_struct/0.4.2:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] bbc2c2f06dcded6af04d8375f4cc042ba2579ef0baf9c129e0963b8ceef6e6a5
[INFO] running `"docker" "start" "-a" "bbc2c2f06dcded6af04d8375f4cc042ba2579ef0baf9c129e0963b8ceef6e6a5"`
[INFO] [stderr]    Compiling byte_struct v0.4.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "bbc2c2f06dcded6af04d8375f4cc042ba2579ef0baf9c129e0963b8ceef6e6a5"`
[INFO] running `"docker" "rm" "-f" "bbc2c2f06dcded6af04d8375f4cc042ba2579ef0baf9c129e0963b8ceef6e6a5"`
[INFO] [stdout] bbc2c2f06dcded6af04d8375f4cc042ba2579ef0baf9c129e0963b8ceef6e6a5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/byte_struct/0.4.2:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 23839a4ac290d63348882d4f7b9e0d9c366deaab1df6c3ec3e91e7061b0ce7d7
[INFO] running `"docker" "start" "-a" "23839a4ac290d63348882d4f7b9e0d9c366deaab1df6c3ec3e91e7061b0ce7d7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/byte_struct-6268ff3911c9e252
[INFO] [stderr]    Doc-tests byte_struct
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - bitfields (line 471) ... FAILED
[INFO] [stdout] test src/lib.rs -  (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - bitfields (line 471) stdout ----
[INFO] [stdout] error: expected one of `async`, `const`, `crate`, `default`, `existential`, `extern`, `fn`, `pub`, `type`, `unsafe`, or `}`, found `...`
[INFO] [stdout]   --> src/lib.rs:507:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl ByteStructUnspecifiedByteOrder for SampleBitField {
[INFO] [stdout]    |                                                         - expected one of 11 possible tokens here
[INFO] [stdout] 38 |     ...
[INFO] [stdout]    |     ^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `bitfields!` in this scope
[INFO] [stdout]  --> src/lib.rs:472:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | bitfields!(
[INFO] [stdout]   | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `ByteStructUnspecifiedByteOrder` in this scope
[INFO] [stdout]   --> src/lib.rs:506:6
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl ByteStructUnspecifiedByteOrder for SampleBitField {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] help: possible candidate is found in another module, you can import it into scope
[INFO] [stdout]    |
[INFO] [stdout] 2  | use byte_struct::ByteStructUnspecifiedByteOrder;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0405`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - bitfields (line 471)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "23839a4ac290d63348882d4f7b9e0d9c366deaab1df6c3ec3e91e7061b0ce7d7"`
[INFO] running `"docker" "rm" "-f" "23839a4ac290d63348882d4f7b9e0d9c366deaab1df6c3ec3e91e7061b0ce7d7"`
[INFO] [stdout] 23839a4ac290d63348882d4f7b9e0d9c366deaab1df6c3ec3e91e7061b0ce7d7