[INFO] crate prefixopt_derive 0.4.0 is already in cache
[INFO] extracting crate prefixopt_derive 0.4.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/prefixopt_derive/0.4.0
[INFO] extracting crate prefixopt_derive 0.4.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/prefixopt_derive/0.4.0
[INFO] validating manifest of prefixopt_derive-0.4.0 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 prefixopt_derive-0.4.0 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 prefixopt_derive-0.4.0
[INFO] finished frobbing prefixopt_derive-0.4.0
[INFO] frobbed toml for prefixopt_derive-0.4.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/prefixopt_derive/0.4.0/Cargo.toml
[INFO] started frobbing prefixopt_derive-0.4.0
[INFO] finished frobbing prefixopt_derive-0.4.0
[INFO] frobbed toml for prefixopt_derive-0.4.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/prefixopt_derive/0.4.0/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing prefixopt_derive-0.4.0 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-0/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/prefixopt_derive/0.4.0:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] bdb486c666547ff8f2fc36b53e287462c27c50d2b925a0db4b4826fb3eaa8f01
[INFO] running `"docker" "start" "-a" "bdb486c666547ff8f2fc36b53e287462c27c50d2b925a0db4b4826fb3eaa8f01"`
[INFO] [stderr]    Compiling scopeguard v0.2.0
[INFO] [stderr]    Compiling map_in_place v0.1.0
[INFO] [stderr]    Compiling prefixopt v0.4.0
[INFO] [stderr]    Compiling prefixopt_derive v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/enum_data.rs:51:38
[INFO] [stderr]    |
[INFO] [stderr] 51 |                     .map(|id| id as &::std::fmt::Display)
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::fmt::Display)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.01s
[INFO] running `"docker" "inspect" "bdb486c666547ff8f2fc36b53e287462c27c50d2b925a0db4b4826fb3eaa8f01"`
[INFO] running `"docker" "rm" "-f" "bdb486c666547ff8f2fc36b53e287462c27c50d2b925a0db4b4826fb3eaa8f01"`
[INFO] [stdout] bdb486c666547ff8f2fc36b53e287462c27c50d2b925a0db4b4826fb3eaa8f01
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/prefixopt_derive/0.4.0:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3e495d9714d4db0fc04d580bc2690d5ece783912b0266d4f6d3c4154e03f5f4a
[INFO] running `"docker" "start" "-a" "3e495d9714d4db0fc04d580bc2690d5ece783912b0266d4f6d3c4154e03f5f4a"`
[INFO] [stderr]    Compiling prefixopt_derive v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/enum_data.rs:51:38
[INFO] [stderr]    |
[INFO] [stderr] 51 |                     .map(|id| id as &::std::fmt::Display)
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::fmt::Display)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `"docker" "inspect" "3e495d9714d4db0fc04d580bc2690d5ece783912b0266d4f6d3c4154e03f5f4a"`
[INFO] running `"docker" "rm" "-f" "3e495d9714d4db0fc04d580bc2690d5ece783912b0266d4f6d3c4154e03f5f4a"`
[INFO] [stdout] 3e495d9714d4db0fc04d580bc2690d5ece783912b0266d4f6d3c4154e03f5f4a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/prefixopt_derive/0.4.0:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 1ba63ec6af1463100a9473c9b3d5df56438287c2f32c02538d6f94ae48ae15de
[INFO] running `"docker" "start" "-a" "1ba63ec6af1463100a9473c9b3d5df56438287c2f32c02538d6f94ae48ae15de"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prefixopt_derive-f98e1ca4c41a1166
[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] [stderr]      Running /opt/crater/target/debug/deps/example-2fd255767919e322
[INFO] [stderr]      Running /opt/crater/target/debug/deps/enums-c65ce48b2ca95bff
[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 8 tests
[INFO] [stdout] test simple::test_empty_tuple ... ok
[INFO] [stdout] test generics::generic_enum_named ... ok
[INFO] [stdout] test generics::generic_other ... ok
[INFO] [stdout] test simple::test_unary_tuple ... ok
[INFO] [stdout] test simple::test_named_args_no_override ... ok
[INFO] [stdout] test simple::test_unit ... ok
[INFO] [stdout] test generics::generic_unary ... ok
[INFO] [stdout] test simple::test_named_args_default ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/structs-59e739a966d66eb7
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test named_tuple ... ok
[INFO] [stdout] test generic_tuple ... ok
[INFO] [stdout] test generic_struct ... ok
[INFO] [stdout] test named_struct ... ok
[INFO] [stdout] test fail_parse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prefixopt_derive
[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] running `"docker" "inspect" "1ba63ec6af1463100a9473c9b3d5df56438287c2f32c02538d6f94ae48ae15de"`
[INFO] running `"docker" "rm" "-f" "1ba63ec6af1463100a9473c9b3d5df56438287c2f32c02538d6f94ae48ae15de"`
[INFO] [stdout] 1ba63ec6af1463100a9473c9b3d5df56438287c2f32c02538d6f94ae48ae15de