[INFO] crate runloop 0.1.0 is already in cache
[INFO] extracting crate runloop 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/runloop/0.1.0
[INFO] extracting crate runloop 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/runloop/0.1.0
[INFO] validating manifest of runloop-0.1.0 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 runloop-0.1.0 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 runloop-0.1.0
[INFO] finished frobbing runloop-0.1.0
[INFO] frobbed toml for runloop-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/runloop/0.1.0/Cargo.toml
[INFO] started frobbing runloop-0.1.0
[INFO] finished frobbing runloop-0.1.0
[INFO] frobbed toml for runloop-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/runloop/0.1.0/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 runloop-0.1.0 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/runloop/0.1.0:/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] 54cdda12fcf597ab68cfda8b1a3a0b27bb5212f6a07c1661fbaed1aa2689d633
[INFO] running `"docker" "start" "-a" "54cdda12fcf597ab68cfda8b1a3a0b27bb5212f6a07c1661fbaed1aa2689d633"`
[INFO] [stderr]    Compiling runloop v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:32:20
[INFO] [stderr]    |
[INFO] [stderr] 32 |         F: FnOnce(&Fn() -> bool) -> T,
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> bool`
[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/lib.rs:40:20
[INFO] [stderr]    |
[INFO] [stderr] 40 |         F: FnOnce(&Fn() -> bool) -> T,
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> bool`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `"docker" "inspect" "54cdda12fcf597ab68cfda8b1a3a0b27bb5212f6a07c1661fbaed1aa2689d633"`
[INFO] running `"docker" "rm" "-f" "54cdda12fcf597ab68cfda8b1a3a0b27bb5212f6a07c1661fbaed1aa2689d633"`
[INFO] [stdout] 54cdda12fcf597ab68cfda8b1a3a0b27bb5212f6a07c1661fbaed1aa2689d633
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/runloop/0.1.0:/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] 6b4eeb029eb12aae449bbf454300419953945668454ec5740b7bd677afc346b2
[INFO] running `"docker" "start" "-a" "6b4eeb029eb12aae449bbf454300419953945668454ec5740b7bd677afc346b2"`
[INFO] [stderr]    Compiling runloop v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:32:20
[INFO] [stderr]    |
[INFO] [stderr] 32 |         F: FnOnce(&Fn() -> bool) -> T,
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> bool`
[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/lib.rs:40:20
[INFO] [stderr]    |
[INFO] [stderr] 40 |         F: FnOnce(&Fn() -> bool) -> T,
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> bool`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `"docker" "inspect" "6b4eeb029eb12aae449bbf454300419953945668454ec5740b7bd677afc346b2"`
[INFO] running `"docker" "rm" "-f" "6b4eeb029eb12aae449bbf454300419953945668454ec5740b7bd677afc346b2"`
[INFO] [stdout] 6b4eeb029eb12aae449bbf454300419953945668454ec5740b7bd677afc346b2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/runloop/0.1.0:/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] 2292cba5b73b112143e03e9efb7aaf3fd2294bc47b600771ac5ad8bd2ce39eaf
[INFO] running `"docker" "start" "-a" "2292cba5b73b112143e03e9efb7aaf3fd2294bc47b600771ac5ad8bd2ce39eaf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/runloop-c5630bc4edff18e5
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::test_timeout ... ok
[INFO] [stdout] test tests::test_empty ... ok
[INFO] [stdout] test tests::test_cancel_early ... ok
[INFO] [stdout] test tests::test_channel ... ok
[INFO] [stdout] test tests::test_cancel_endless_loop ... 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 runloop
[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" "2292cba5b73b112143e03e9efb7aaf3fd2294bc47b600771ac5ad8bd2ce39eaf"`
[INFO] running `"docker" "rm" "-f" "2292cba5b73b112143e03e9efb7aaf3fd2294bc47b600771ac5ad8bd2ce39eaf"`
[INFO] [stdout] 2292cba5b73b112143e03e9efb7aaf3fd2294bc47b600771ac5ad8bd2ce39eaf