[INFO] crate from_variants_impl 0.4.0 is already in cache
[INFO] extracting crate from_variants_impl 0.4.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/from_variants_impl/0.4.0
[INFO] extracting crate from_variants_impl 0.4.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/from_variants_impl/0.4.0
[INFO] validating manifest of from_variants_impl-0.4.0 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 from_variants_impl-0.4.0 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 from_variants_impl-0.4.0
[INFO] finished frobbing from_variants_impl-0.4.0
[INFO] frobbed toml for from_variants_impl-0.4.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/from_variants_impl/0.4.0/Cargo.toml
[INFO] started frobbing from_variants_impl-0.4.0
[INFO] finished frobbing from_variants_impl-0.4.0
[INFO] frobbed toml for from_variants_impl-0.4.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/from_variants_impl/0.4.0/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 from_variants_impl-0.4.0 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/from_variants_impl/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] a1cf61eeb4a5a38527adeb0d23e1d09adcef032d31ae2a006e31147625ee0cc7
[INFO] running `"docker" "start" "-a" "a1cf61eeb4a5a38527adeb0d23e1d09adcef032d31ae2a006e31147625ee0cc7"`
[INFO] [stderr]    Compiling darling_core v0.5.0
[INFO] [stderr]    Compiling darling_macro v0.5.0
[INFO] [stderr]    Compiling darling v0.5.0
[INFO] [stderr]    Compiling from_variants_impl v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]  --> src/errors.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | / error_chain! {
[INFO] [stderr] 4 | |     foreign_links {
[INFO] [stderr] 5 | |         Darling(darling::Error);
[INFO] [stderr] 6 | |     }
[INFO] [stderr] 7 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.41s
[INFO] running `"docker" "inspect" "a1cf61eeb4a5a38527adeb0d23e1d09adcef032d31ae2a006e31147625ee0cc7"`
[INFO] running `"docker" "rm" "-f" "a1cf61eeb4a5a38527adeb0d23e1d09adcef032d31ae2a006e31147625ee0cc7"`
[INFO] [stdout] a1cf61eeb4a5a38527adeb0d23e1d09adcef032d31ae2a006e31147625ee0cc7
[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/from_variants_impl/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 170fec27bace4ae9ca8bada09f8c46613a9e2a4c2c9fd53b29f851b5924ce812
[INFO] running `"docker" "start" "-a" "170fec27bace4ae9ca8bada09f8c46613a9e2a4c2c9fd53b29f851b5924ce812"`
[INFO] [stderr]    Compiling pretty_assertions v0.1.2
[INFO] [stderr]    Compiling from_variants_impl v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]  --> src/errors.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | / error_chain! {
[INFO] [stderr] 4 | |     foreign_links {
[INFO] [stderr] 5 | |         Darling(darling::Error);
[INFO] [stderr] 6 | |     }
[INFO] [stderr] 7 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `"docker" "inspect" "170fec27bace4ae9ca8bada09f8c46613a9e2a4c2c9fd53b29f851b5924ce812"`
[INFO] running `"docker" "rm" "-f" "170fec27bace4ae9ca8bada09f8c46613a9e2a4c2c9fd53b29f851b5924ce812"`
[INFO] [stdout] 170fec27bace4ae9ca8bada09f8c46613a9e2a4c2c9fd53b29f851b5924ce812
[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/from_variants_impl/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 1aced843aca383710d757b5f6eedc17bd0e4c93f06150f86f1ebd330298c59b0
[INFO] running `"docker" "start" "-a" "1aced843aca383710d757b5f6eedc17bd0e4c93f06150f86f1ebd330298c59b0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/from_variants_impl-c0ec407a7318cfb8
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test from_impl::tests::into ... ok
[INFO] [stdout] test from_impl::tests::into_generics ... ok
[INFO] [stdout] test from_impl::tests::lifetime ... ok
[INFO] [stdout] test from_impl::tests::simple ... ok
[INFO] [stdout] test tests::it_works ... 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 from_variants_impl
[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" "1aced843aca383710d757b5f6eedc17bd0e4c93f06150f86f1ebd330298c59b0"`
[INFO] running `"docker" "rm" "-f" "1aced843aca383710d757b5f6eedc17bd0e4c93f06150f86f1ebd330298c59b0"`
[INFO] [stdout] 1aced843aca383710d757b5f6eedc17bd0e4c93f06150f86f1ebd330298c59b0