[INFO] updating cached repository qnighy/async-stdio-test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/qnighy/async-stdio-test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/qnighy/async-stdio-test" "work/ex/beta-1.37-6/sources/1.36.0/gh/qnighy/async-stdio-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/qnighy/async-stdio-test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/qnighy/async-stdio-test" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/qnighy/async-stdio-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/qnighy/async-stdio-test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f5c56f63fcf77ee4aa88aecd1bd752522bfa014
[INFO] sha for GitHub repo qnighy/async-stdio-test: 5f5c56f63fcf77ee4aa88aecd1bd752522bfa014
[INFO] validating manifest of qnighy/async-stdio-test 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 qnighy/async-stdio-test 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 qnighy/async-stdio-test
[INFO] finished frobbing qnighy/async-stdio-test
[INFO] frobbed toml for qnighy/async-stdio-test written to work/ex/beta-1.37-6/sources/1.36.0/gh/qnighy/async-stdio-test/Cargo.toml
[INFO] started frobbing qnighy/async-stdio-test
[INFO] finished frobbing qnighy/async-stdio-test
[INFO] frobbed toml for qnighy/async-stdio-test written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/qnighy/async-stdio-test/Cargo.toml
[INFO] crate qnighy/async-stdio-test already has a lockfile, it will not be regenerated
[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 qnighy/async-stdio-test 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-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/qnighy/async-stdio-test:/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] 1dcb37406771142cd4b5ad103ca37147c3425dc3e917cad975ae6e8b23f15242
[INFO] running `"docker" "start" "-a" "1dcb37406771142cd4b5ad103ca37147c3425dc3e917cad975ae6e8b23f15242"`
[INFO] [stderr]    Compiling byteorder v1.2.2
[INFO] [stderr]    Compiling crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling tokio-timer v0.2.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.1
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling crossbeam-deque v0.3.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.2
[INFO] [stderr]    Compiling tokio-io v0.1.6
[INFO] [stderr]    Compiling tokio-reactor v0.1.1
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling tokio-udp v0.1.0
[INFO] [stderr]    Compiling tokio-file-unix v0.5.0
[INFO] [stderr]    Compiling tokio v0.1.5
[INFO] [stderr]    Compiling async-stdio-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:16:19
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn main2() -> Box<Future<Item = (), Error = ()> + Send> {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = ()> + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.65s
[INFO] running `"docker" "inspect" "1dcb37406771142cd4b5ad103ca37147c3425dc3e917cad975ae6e8b23f15242"`
[INFO] running `"docker" "rm" "-f" "1dcb37406771142cd4b5ad103ca37147c3425dc3e917cad975ae6e8b23f15242"`
[INFO] [stdout] 1dcb37406771142cd4b5ad103ca37147c3425dc3e917cad975ae6e8b23f15242
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/qnighy/async-stdio-test:/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] b94200078b3469bc6020327707c31ae4d9df2ed42a98f75a865ce0998ed1115c
[INFO] running `"docker" "start" "-a" "b94200078b3469bc6020327707c31ae4d9df2ed42a98f75a865ce0998ed1115c"`
[INFO] [stderr]    Compiling async-stdio-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:16:19
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn main2() -> Box<Future<Item = (), Error = ()> + Send> {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = ()> + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "b94200078b3469bc6020327707c31ae4d9df2ed42a98f75a865ce0998ed1115c"`
[INFO] running `"docker" "rm" "-f" "b94200078b3469bc6020327707c31ae4d9df2ed42a98f75a865ce0998ed1115c"`
[INFO] [stdout] b94200078b3469bc6020327707c31ae4d9df2ed42a98f75a865ce0998ed1115c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/qnighy/async-stdio-test:/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] f679d559a9e58ce4260d213660b64a8195c9d4ff8579f360763a622ecff0ad32
[INFO] running `"docker" "start" "-a" "f679d559a9e58ce4260d213660b64a8195c9d4ff8579f360763a622ecff0ad32"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/async_stdio_test-9ef2c3814455af96
[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" "f679d559a9e58ce4260d213660b64a8195c9d4ff8579f360763a622ecff0ad32"`
[INFO] running `"docker" "rm" "-f" "f679d559a9e58ce4260d213660b64a8195c9d4ff8579f360763a622ecff0ad32"`
[INFO] [stdout] f679d559a9e58ce4260d213660b64a8195c9d4ff8579f360763a622ecff0ad32