[INFO] crate byte_channel 0.0.1 is already in cache
[INFO] extracting crate byte_channel 0.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/byte_channel/0.0.1
[INFO] extracting crate byte_channel 0.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/byte_channel/0.0.1
[INFO] validating manifest of byte_channel-0.0.1 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 byte_channel-0.0.1 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 byte_channel-0.0.1
[INFO] finished frobbing byte_channel-0.0.1
[INFO] frobbed toml for byte_channel-0.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/byte_channel/0.0.1/Cargo.toml
[INFO] started frobbing byte_channel-0.0.1
[INFO] finished frobbing byte_channel-0.0.1
[INFO] frobbed toml for byte_channel-0.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/byte_channel/0.0.1/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 byte_channel-0.0.1 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-5/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/byte_channel/0.0.1:/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] 020d8ba2bbcc27cd3f2ff41a3c055fd0af18679a6c56f343771c97d1586a6ccd
[INFO] running `"docker" "start" "-a" "020d8ba2bbcc27cd3f2ff41a3c055fd0af18679a6c56f343771c97d1586a6ccd"`
[INFO] [stderr]    Compiling byte_channel v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "020d8ba2bbcc27cd3f2ff41a3c055fd0af18679a6c56f343771c97d1586a6ccd"`
[INFO] running `"docker" "rm" "-f" "020d8ba2bbcc27cd3f2ff41a3c055fd0af18679a6c56f343771c97d1586a6ccd"`
[INFO] [stdout] 020d8ba2bbcc27cd3f2ff41a3c055fd0af18679a6c56f343771c97d1586a6ccd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/byte_channel/0.0.1:/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] e9a283fa7139068dfbfb8223f569e063b85e96870a6b7f67ddd056b0c033495f
[INFO] running `"docker" "start" "-a" "e9a283fa7139068dfbfb8223f569e063b85e96870a6b7f67ddd056b0c033495f"`
[INFO] [stderr]    Compiling test_futures v0.0.1
[INFO] [stderr]    Compiling byte_channel v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:2:18
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[cfg_attr(test, macro_use)]
[INFO] [stderr]   |                  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `"docker" "inspect" "e9a283fa7139068dfbfb8223f569e063b85e96870a6b7f67ddd056b0c033495f"`
[INFO] running `"docker" "rm" "-f" "e9a283fa7139068dfbfb8223f569e063b85e96870a6b7f67ddd056b0c033495f"`
[INFO] [stdout] e9a283fa7139068dfbfb8223f569e063b85e96870a6b7f67ddd056b0c033495f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/byte_channel/0.0.1:/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] b7b1e2a72665550bfb1adbeeb4cd28fdffb25a9a7ab316d71c245622640d71de
[INFO] running `"docker" "start" "-a" "b7b1e2a72665550bfb1adbeeb4cd28fdffb25a9a7ab316d71c245622640d71de"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/byte_channel-e8d8c3c3e5ef4f0a
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test window::test::poll_not_ready_when_underflow ... ok
[INFO] [stdout] test window::test::poll_applies_increment ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sync-0c01cac14676b46e
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test consuming_chunks_frees_space ... ok
[INFO] [stdout] test shrink_between_advertise_and_push ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests byte_channel
[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" "b7b1e2a72665550bfb1adbeeb4cd28fdffb25a9a7ab316d71c245622640d71de"`
[INFO] running `"docker" "rm" "-f" "b7b1e2a72665550bfb1adbeeb4cd28fdffb25a9a7ab316d71c245622640d71de"`
[INFO] [stdout] b7b1e2a72665550bfb1adbeeb4cd28fdffb25a9a7ab316d71c245622640d71de