[INFO] crate widget 0.0.0 is already in cache
[INFO] extracting crate widget 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/widget/0.0.0
[INFO] extracting crate widget 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/widget/0.0.0
[INFO] validating manifest of widget-0.0.0 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 widget-0.0.0 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 widget-0.0.0
[INFO] finished frobbing widget-0.0.0
[INFO] frobbed toml for widget-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/widget/0.0.0/Cargo.toml
[INFO] started frobbing widget-0.0.0
[INFO] finished frobbing widget-0.0.0
[INFO] frobbed toml for widget-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/widget/0.0.0/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing widget-0.0.0 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/widget/0.0.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] c23242a264e4303162c167e75faedb1c1432573e5dc8d6e0025af3c1344019c9
[INFO] running `"docker" "start" "-a" "c23242a264e4303162c167e75faedb1c1432573e5dc8d6e0025af3c1344019c9"`
[INFO] [stderr]    Compiling widget v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/split.rs:7:39
[INFO] [stderr]   |
[INFO] [stderr] 7 |                  W: DerefMut<Target = Widget<Ev, Surface, Output = A>>,
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Widget<Ev, Surface, Output = A>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/split.rs:21:27
[INFO] [stderr]    |
[INFO] [stderr] 21 |      W: DerefMut<Target = Widget<Ev, Surface, Output = A>>,
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Widget<Ev, Surface, Output = A>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `"docker" "inspect" "c23242a264e4303162c167e75faedb1c1432573e5dc8d6e0025af3c1344019c9"`
[INFO] running `"docker" "rm" "-f" "c23242a264e4303162c167e75faedb1c1432573e5dc8d6e0025af3c1344019c9"`
[INFO] [stdout] c23242a264e4303162c167e75faedb1c1432573e5dc8d6e0025af3c1344019c9
[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/widget/0.0.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] d62a1c12714928e6ebc63d7c40d2821c223ef32e22e2b97a56a85b46d5b9c001
[INFO] running `"docker" "start" "-a" "d62a1c12714928e6ebc63d7c40d2821c223ef32e22e2b97a56a85b46d5b9c001"`
[INFO] [stderr]    Compiling widget v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/split.rs:7:39
[INFO] [stderr]   |
[INFO] [stderr] 7 |                  W: DerefMut<Target = Widget<Ev, Surface, Output = A>>,
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Widget<Ev, Surface, Output = A>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/split.rs:21:27
[INFO] [stderr]    |
[INFO] [stderr] 21 |      W: DerefMut<Target = Widget<Ev, Surface, Output = A>>,
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Widget<Ev, Surface, Output = A>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "d62a1c12714928e6ebc63d7c40d2821c223ef32e22e2b97a56a85b46d5b9c001"`
[INFO] running `"docker" "rm" "-f" "d62a1c12714928e6ebc63d7c40d2821c223ef32e22e2b97a56a85b46d5b9c001"`
[INFO] [stdout] d62a1c12714928e6ebc63d7c40d2821c223ef32e22e2b97a56a85b46d5b9c001
[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/widget/0.0.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 91d63fcd935995624812aee025ef77e129b77b646e4e663ec28381f0fd791667
[INFO] running `"docker" "start" "-a" "91d63fcd935995624812aee025ef77e129b77b646e4e663ec28381f0fd791667"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/widget-220b10a0ba5e8dfc
[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 widget
[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" "91d63fcd935995624812aee025ef77e129b77b646e4e663ec28381f0fd791667"`
[INFO] running `"docker" "rm" "-f" "91d63fcd935995624812aee025ef77e129b77b646e4e663ec28381f0fd791667"`
[INFO] [stdout] 91d63fcd935995624812aee025ef77e129b77b646e4e663ec28381f0fd791667