[INFO] crate rb 0.3.2 is already in cache
[INFO] extracting crate rb 0.3.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/rb/0.3.2
[INFO] extracting crate rb 0.3.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rb/0.3.2
[INFO] validating manifest of rb-0.3.2 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 rb-0.3.2 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 rb-0.3.2
[INFO] finished frobbing rb-0.3.2
[INFO] frobbed toml for rb-0.3.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rb/0.3.2/Cargo.toml
[INFO] started frobbing rb-0.3.2
[INFO] finished frobbing rb-0.3.2
[INFO] frobbed toml for rb-0.3.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rb/0.3.2/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 rb-0.3.2 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-0/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/rb/0.3.2:/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] a4c3c811b0bd904b05b03ea6f54d7180888989770db490c2fb18669ba5d9b40f
[INFO] running `"docker" "start" "-a" "a4c3c811b0bd904b05b03ea6f54d7180888989770db490c2fb18669ba5d9b40f"`
[INFO] [stderr]    Compiling rb v0.3.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `"docker" "inspect" "a4c3c811b0bd904b05b03ea6f54d7180888989770db490c2fb18669ba5d9b40f"`
[INFO] running `"docker" "rm" "-f" "a4c3c811b0bd904b05b03ea6f54d7180888989770db490c2fb18669ba5d9b40f"`
[INFO] [stdout] a4c3c811b0bd904b05b03ea6f54d7180888989770db490c2fb18669ba5d9b40f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/rb/0.3.2:/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] 8f0cc436dc7c469f3d8c9ea3a683e0729d79dfddcf16473f9ce74ccb68efaa39
[INFO] running `"docker" "start" "-a" "8f0cc436dc7c469f3d8c9ea3a683e0729d79dfddcf16473f9ce74ccb68efaa39"`
[INFO] [stderr]    Compiling rb v0.3.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `"docker" "inspect" "8f0cc436dc7c469f3d8c9ea3a683e0729d79dfddcf16473f9ce74ccb68efaa39"`
[INFO] running `"docker" "rm" "-f" "8f0cc436dc7c469f3d8c9ea3a683e0729d79dfddcf16473f9ce74ccb68efaa39"`
[INFO] [stdout] 8f0cc436dc7c469f3d8c9ea3a683e0729d79dfddcf16473f9ce74ccb68efaa39
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/rb/0.3.2:/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] ab7ead8e3f3b0ebd33581e0ca25b5f344ba1c7cb3c9a7152570d7ce9b49d766c
[INFO] running `"docker" "start" "-a" "ab7ead8e3f3b0ebd33581e0ca25b5f344ba1c7cb3c9a7152570d7ce9b49d766c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rb-46fdad9c157e3e49
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::get_to_empty_buffer_returns_zero ... ok
[INFO] [stdout] test tests::get_from_empty_buffer_returns_error ... ok
[INFO] [stdout] test tests::get_with_wrapping_2 ... ok
[INFO] [stdout] test tests::read_blocking_to_empty_buffer_returns_none ... ok
[INFO] [stdout] test tests::read_from_empty_buffer_returns_error ... ok
[INFO] [stdout] test tests::write_empty_buffer_returns_zero ... ok
[INFO] [stdout] test tests::read_to_empty_buffer_returns_zero ... ok
[INFO] [stdout] test tests::write_blocking_empty_buffer_returns_zero ... ok
[INFO] [stdout] test tests::write_to_full_queue_returns_error ... ok
[INFO] [stdout] test tests::get_with_wrapping ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test-fa9d8162bf91be6f
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_wrap_around ... ok
[INFO] [stdout] test test_skip ... ok
[INFO] [stdout] test test_read_write_wrap_blocking ... ok
[INFO] [stdout] test test_read ... ok
[INFO] [stdout] test test_write ... ok
[INFO] [stdout] test test_get ... ok
[INFO] [stdout] test test_read_write_wrap ... ok
[INFO] [stdout] test test_clear ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/threads-0d0931850d101309
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_threads_blocking ... ok
[INFO] [stdout] test test_threads ... ok
[INFO] [stdout] test test_threads_count_underflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rb
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - SpscRb (line 132) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ab7ead8e3f3b0ebd33581e0ca25b5f344ba1c7cb3c9a7152570d7ce9b49d766c"`
[INFO] running `"docker" "rm" "-f" "ab7ead8e3f3b0ebd33581e0ca25b5f344ba1c7cb3c9a7152570d7ce9b49d766c"`
[INFO] [stdout] ab7ead8e3f3b0ebd33581e0ca25b5f344ba1c7cb3c9a7152570d7ce9b49d766c