[INFO] crate plugin-test-api 0.1.2 is already in cache
[INFO] extracting crate plugin-test-api 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/plugin-test-api/0.1.2
[INFO] extracting crate plugin-test-api 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/plugin-test-api/0.1.2
[INFO] validating manifest of plugin-test-api-0.1.2 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 plugin-test-api-0.1.2 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 plugin-test-api-0.1.2
[INFO] finished frobbing plugin-test-api-0.1.2
[INFO] frobbed toml for plugin-test-api-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/plugin-test-api/0.1.2/Cargo.toml
[INFO] started frobbing plugin-test-api-0.1.2
[INFO] finished frobbing plugin-test-api-0.1.2
[INFO] frobbed toml for plugin-test-api-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/plugin-test-api/0.1.2/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 plugin-test-api-0.1.2 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/plugin-test-api/0.1.2:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] b850e5e393212833a76268c341f1d7759adf68c7a12ffb007d412fab6ff2f12f
[INFO] running `"docker" "start" "-a" "b850e5e393212833a76268c341f1d7759adf68c7a12ffb007d412fab6ff2f12f"`
[INFO] [stderr]    Compiling plugin-test-api v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:4:33
[INFO] [stderr]   |
[INFO] [stderr] 4 |   fn get_instance(&self) -> Box<SayHello>;
[INFO] [stderr]   |                                 ^^^^^^^^ help: use `dyn`: `dyn SayHello`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `"docker" "inspect" "b850e5e393212833a76268c341f1d7759adf68c7a12ffb007d412fab6ff2f12f"`
[INFO] running `"docker" "rm" "-f" "b850e5e393212833a76268c341f1d7759adf68c7a12ffb007d412fab6ff2f12f"`
[INFO] [stdout] b850e5e393212833a76268c341f1d7759adf68c7a12ffb007d412fab6ff2f12f
[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/plugin-test-api/0.1.2:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 25c8f2073187c46b14c0e18f119b90dcc5a408af2b9fa07e684f4a47cb0a376b
[INFO] running `"docker" "start" "-a" "25c8f2073187c46b14c0e18f119b90dcc5a408af2b9fa07e684f4a47cb0a376b"`
[INFO] [stderr]    Compiling plugin-test-api v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:4:33
[INFO] [stderr]   |
[INFO] [stderr] 4 |   fn get_instance(&self) -> Box<SayHello>;
[INFO] [stderr]   |                                 ^^^^^^^^ help: use `dyn`: `dyn SayHello`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `"docker" "inspect" "25c8f2073187c46b14c0e18f119b90dcc5a408af2b9fa07e684f4a47cb0a376b"`
[INFO] running `"docker" "rm" "-f" "25c8f2073187c46b14c0e18f119b90dcc5a408af2b9fa07e684f4a47cb0a376b"`
[INFO] [stdout] 25c8f2073187c46b14c0e18f119b90dcc5a408af2b9fa07e684f4a47cb0a376b
[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/plugin-test-api/0.1.2:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 09fdfff17298f938d744df5b4b806a4db344c0e77bd132c1b6ea8e3acf084355
[INFO] running `"docker" "start" "-a" "09fdfff17298f938d744df5b4b806a4db344c0e77bd132c1b6ea8e3acf084355"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/plugin_test_api-45af2551d4340247
[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]    Doc-tests plugin-test-api
[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" "09fdfff17298f938d744df5b4b806a4db344c0e77bd132c1b6ea8e3acf084355"`
[INFO] running `"docker" "rm" "-f" "09fdfff17298f938d744df5b4b806a4db344c0e77bd132c1b6ea8e3acf084355"`
[INFO] [stdout] 09fdfff17298f938d744df5b4b806a4db344c0e77bd132c1b6ea8e3acf084355