[INFO] crate async-slot 0.1.0 is already in cache
[INFO] extracting crate async-slot 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/async-slot/0.1.0
[INFO] extracting crate async-slot 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/async-slot/0.1.0
[INFO] validating manifest of async-slot-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 async-slot-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 async-slot-0.1.0
[INFO] finished frobbing async-slot-0.1.0
[INFO] frobbed toml for async-slot-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/async-slot/0.1.0/Cargo.toml
[INFO] started frobbing async-slot-0.1.0
[INFO] finished frobbing async-slot-0.1.0
[INFO] frobbed toml for async-slot-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/async-slot/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 async-slot-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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/async-slot/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] 9c4f7752f460f3d466abbbf674ac6769157733c723dec00d76fb938beaa43bc6
[INFO] running `"docker" "start" "-a" "9c4f7752f460f3d466abbbf674ac6769157733c723dec00d76fb938beaa43bc6"`
[INFO] [stderr]    Compiling async-slot v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "9c4f7752f460f3d466abbbf674ac6769157733c723dec00d76fb938beaa43bc6"`
[INFO] running `"docker" "rm" "-f" "9c4f7752f460f3d466abbbf674ac6769157733c723dec00d76fb938beaa43bc6"`
[INFO] [stdout] 9c4f7752f460f3d466abbbf674ac6769157733c723dec00d76fb938beaa43bc6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/async-slot/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] aa6706839fce71fdf01ed40fc9d24f043cd7f7aafc75ad9d8e0f9526184fa898
[INFO] running `"docker" "start" "-a" "aa6706839fce71fdf01ed40fc9d24f043cd7f7aafc75ad9d8e0f9526184fa898"`
[INFO] [stderr]    Compiling async-slot v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/slot.rs:203:22
[INFO] [stderr]     |
[INFO] [stderr] 203 |     fn list() -> Box<Stream<Item=i32, Error=u32>> {
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Stream<Item=i32, Error=u32>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `"docker" "inspect" "aa6706839fce71fdf01ed40fc9d24f043cd7f7aafc75ad9d8e0f9526184fa898"`
[INFO] running `"docker" "rm" "-f" "aa6706839fce71fdf01ed40fc9d24f043cd7f7aafc75ad9d8e0f9526184fa898"`
[INFO] [stdout] aa6706839fce71fdf01ed40fc9d24f043cd7f7aafc75ad9d8e0f9526184fa898
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/async-slot/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] 5b8392921e35be51feff4eb645f54f65713630a2b4c0b41a41513f878fae38c5
[INFO] running `"docker" "start" "-a" "5b8392921e35be51feff4eb645f54f65713630a2b4c0b41a41513f878fae38c5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/async_slot-40007a89c1e66884
[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]      Running /opt/crater/target/debug/deps/slot-ef62cbfbfcf01197
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test send_error ... ok
[INFO] [stdout] test is_canceled ... ok
[INFO] [stdout] test poll_cancel ... ok
[INFO] [stdout] test send_recv ... ok
[INFO] [stdout] test send_recv_no_buffer ... ok
[INFO] [stdout] test send_recv_threads ... ok
[INFO] [stdout] test send_shared_recv ... ok
[INFO] [stdout] test swap ... ok
[INFO] [stdout] test tx_close_gets_none ... ok
[INFO] [stdout] test stress_shared_bounded_hard ... ok
[INFO] [stdout] test send_recv_threads_no_capacity ... ok
[INFO] [stdout] test stress_drop_sender ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/slot_unsync-6881c786891436ee
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test send_recv ... ok
[INFO] [stdout] test send_recv_no_buffer ... ok
[INFO] [stdout] test is_canceled ... ok
[INFO] [stdout] test swap ... ok
[INFO] [stdout] test send_shared_recv ... ok
[INFO] [stdout] test poll_cancel ... ok
[INFO] [stdout] test tx_close_gets_none ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests async-slot
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/unsync.rs - unsync::channel (line 193) ... ok
[INFO] [stdout] test src/sync.rs - sync::channel (line 213) ... ok
[INFO] [stdout] test src/lib.rs -  (line 22) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5b8392921e35be51feff4eb645f54f65713630a2b4c0b41a41513f878fae38c5"`
[INFO] running `"docker" "rm" "-f" "5b8392921e35be51feff4eb645f54f65713630a2b4c0b41a41513f878fae38c5"`
[INFO] [stdout] 5b8392921e35be51feff4eb645f54f65713630a2b4c0b41a41513f878fae38c5