[INFO] updating cached repository JunSuzukiJapan/circle_buffer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JunSuzukiJapan/circle_buffer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JunSuzukiJapan/circle_buffer" "work/ex/beta-1.38-1/sources/1.37.0/gh/JunSuzukiJapan/circle_buffer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/JunSuzukiJapan/circle_buffer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JunSuzukiJapan/circle_buffer" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JunSuzukiJapan/circle_buffer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JunSuzukiJapan/circle_buffer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 667474a6d85f4476f25f7683109f60e36a49a4bd
[INFO] sha for GitHub repo JunSuzukiJapan/circle_buffer: 667474a6d85f4476f25f7683109f60e36a49a4bd
[INFO] validating manifest of JunSuzukiJapan/circle_buffer 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 JunSuzukiJapan/circle_buffer 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 JunSuzukiJapan/circle_buffer
[INFO] finished frobbing JunSuzukiJapan/circle_buffer
[INFO] frobbed toml for JunSuzukiJapan/circle_buffer written to work/ex/beta-1.38-1/sources/1.37.0/gh/JunSuzukiJapan/circle_buffer/Cargo.toml
[INFO] started frobbing JunSuzukiJapan/circle_buffer
[INFO] finished frobbing JunSuzukiJapan/circle_buffer
[INFO] frobbed toml for JunSuzukiJapan/circle_buffer written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JunSuzukiJapan/circle_buffer/Cargo.toml
[INFO] crate JunSuzukiJapan/circle_buffer already has a lockfile, it will not be regenerated
[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 JunSuzukiJapan/circle_buffer 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-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JunSuzukiJapan/circle_buffer:/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] 0381074abadb79fd61d497d1d7e8241a8a87850bafbd0f8b58cf2570c00fa170
[INFO] running `"docker" "start" "-a" "0381074abadb79fd61d497d1d7e8241a8a87850bafbd0f8b58cf2570c00fa170"`
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling circle_buffer v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.04s
[INFO] running `"docker" "inspect" "0381074abadb79fd61d497d1d7e8241a8a87850bafbd0f8b58cf2570c00fa170"`
[INFO] running `"docker" "rm" "-f" "0381074abadb79fd61d497d1d7e8241a8a87850bafbd0f8b58cf2570c00fa170"`
[INFO] [stdout] 0381074abadb79fd61d497d1d7e8241a8a87850bafbd0f8b58cf2570c00fa170
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JunSuzukiJapan/circle_buffer:/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] f34fd8f94a1d431edd80c7e0ad68d596e8935dfb2247e63d966c4f7a8cf53d5b
[INFO] running `"docker" "start" "-a" "f34fd8f94a1d431edd80c7e0ad68d596e8935dfb2247e63d966c4f7a8cf53d5b"`
[INFO] [stderr]    Compiling circle_buffer v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `"docker" "inspect" "f34fd8f94a1d431edd80c7e0ad68d596e8935dfb2247e63d966c4f7a8cf53d5b"`
[INFO] running `"docker" "rm" "-f" "f34fd8f94a1d431edd80c7e0ad68d596e8935dfb2247e63d966c4f7a8cf53d5b"`
[INFO] [stdout] f34fd8f94a1d431edd80c7e0ad68d596e8935dfb2247e63d966c4f7a8cf53d5b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JunSuzukiJapan/circle_buffer:/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] bae65827ad887174c9571e6ef0b846e779981ed3c8c7855a998916b498d1687a
[INFO] running `"docker" "start" "-a" "bae65827ad887174c9571e6ef0b846e779981ed3c8c7855a998916b498d1687a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/circle_buffer-bba1ba227e7af2f4
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::test_is_empty ... ok
[INFO] [stdout] test tests::test_iter ... ok
[INFO] [stdout] test tests::test_iter_mut ... ok
[INFO] [stdout] test tests::test_push ... ok
[INFO] [stdout] test tests::test_len ... ok
[INFO] [stdout] test tests::test_index ... ok
[INFO] [stdout] test tests::test_index_mut ... ok
[INFO] [stdout] test tests::test_capacity ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests circle_buffer
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - CircleBuffer<T>::with_capacity (line 19) ... ok
[INFO] [stdout] test src/lib.rs - CircleBuffer<T>::capacity (line 36) ... ok
[INFO] [stdout] test src/lib.rs - CircleBuffer<T>::is_empty (line 73) ... ok
[INFO] [stdout] test src/lib.rs - CircleBuffer<T>::len (line 50) ... ok
[INFO] [stdout] test src/lib.rs - CircleBuffer<T>::iter_mut (line 187) ... ok
[INFO] [stdout] test src/lib.rs - CircleBuffer<T>::zero_clear (line 217) ... ok
[INFO] [stdout] test src/lib.rs - CircleBuffer<T>::push (line 91) ... ok
[INFO] [stdout] test src/lib.rs - CircleBuffer<T>::iter (line 163) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bae65827ad887174c9571e6ef0b846e779981ed3c8c7855a998916b498d1687a"`
[INFO] running `"docker" "rm" "-f" "bae65827ad887174c9571e6ef0b846e779981ed3c8c7855a998916b498d1687a"`
[INFO] [stdout] bae65827ad887174c9571e6ef0b846e779981ed3c8c7855a998916b498d1687a