[INFO] crate twiddle 1.1.0 is already in cache
[INFO] extracting crate twiddle 1.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/twiddle/1.1.0
[INFO] extracting crate twiddle 1.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/twiddle/1.1.0
[INFO] validating manifest of twiddle-1.1.0 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 twiddle-1.1.0 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 twiddle-1.1.0
[INFO] finished frobbing twiddle-1.1.0
[INFO] frobbed toml for twiddle-1.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/twiddle/1.1.0/Cargo.toml
[INFO] started frobbing twiddle-1.1.0
[INFO] finished frobbing twiddle-1.1.0
[INFO] frobbed toml for twiddle-1.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/twiddle/1.1.0/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing twiddle-1.1.0 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/twiddle/1.1.0:/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] ef6549769427d407b3f9f963c4826d1480c559383627f82ac8e03d1a64e7fa8d
[INFO] running `"docker" "start" "-a" "ef6549769427d407b3f9f963c4826d1480c559383627f82ac8e03d1a64e7fa8d"`
[INFO] [stderr]    Compiling twiddle v1.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `"docker" "inspect" "ef6549769427d407b3f9f963c4826d1480c559383627f82ac8e03d1a64e7fa8d"`
[INFO] running `"docker" "rm" "-f" "ef6549769427d407b3f9f963c4826d1480c559383627f82ac8e03d1a64e7fa8d"`
[INFO] [stdout] ef6549769427d407b3f9f963c4826d1480c559383627f82ac8e03d1a64e7fa8d
[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/twiddle/1.1.0:/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] 938224d6c31249c40e3bf2392c345abc06dbc7cdf06300e94e3f1a2f5f42670c
[INFO] running `"docker" "start" "-a" "938224d6c31249c40e3bf2392c345abc06dbc7cdf06300e94e3f1a2f5f42670c"`
[INFO] [stderr]    Compiling twiddle v1.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "938224d6c31249c40e3bf2392c345abc06dbc7cdf06300e94e3f1a2f5f42670c"`
[INFO] running `"docker" "rm" "-f" "938224d6c31249c40e3bf2392c345abc06dbc7cdf06300e94e3f1a2f5f42670c"`
[INFO] [stdout] 938224d6c31249c40e3bf2392c345abc06dbc7cdf06300e94e3f1a2f5f42670c
[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/twiddle/1.1.0:/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] 554b32a65735d30f3742717e0d773348164771d9a46e1ec308dcd9396561e21d
[INFO] running `"docker" "start" "-a" "554b32a65735d30f3742717e0d773348164771d9a46e1ec308dcd9396561e21d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/twiddle-5d2ab42d07da92dc
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test tests::bit ... ok
[INFO] [stdout] test tests::bits_bottom ... ok
[INFO] [stdout] test tests::bits_middle ... ok
[INFO] [stdout] test tests::bits_full ... ok
[INFO] [stdout] test tests::mask_middle ... ok
[INFO] [stdout] test tests::mask_top ... ok
[INFO] [stdout] test tests::mask_bottom ... ok
[INFO] [stdout] test tests::bits_top ... ok
[INFO] [stdout] test tests::mask_full ... ok
[INFO] [stdout] test tests::replace_overlong ... ok
[INFO] [stdout] test tests::replace_top ... ok
[INFO] [stdout] test tests::set_true_bit ... ok
[INFO] [stdout] test tests::replace_bottom ... ok
[INFO] [stdout] test tests::set_false_bit ... ok
[INFO] [stdout] test tests::replace_full ... ok
[INFO] [stdout] test tests::replace_middle ... ok
[INFO] [stdout] test tests::unset_true_bit ... ok
[INFO] [stdout] test tests::unset_false_bit ... ok
[INFO] [stdout] test tests::split ... ok
[INFO] [stdout] test tests::mask_reversed ... ok
[INFO] [stdout] test tests::mask_overflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests twiddle
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - Twiddle::bits (line 85) ... ok
[INFO] [stdout] test src/lib.rs - Twiddle::mask (line 61) ... ok
[INFO] [stdout] test src/lib.rs - Twiddle::bit (line 72) ... ok
[INFO] [stdout] test src/lib.rs - Twiddle::set_bit (line 96) ... ok
[INFO] [stdout] test src/lib.rs - Twiddle::replace (line 107) ... ok
[INFO] [stdout] test src/lib.rs - Twiddle::split (line 122) ... ok
[INFO] [stdout] test src/lib.rs -  (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "554b32a65735d30f3742717e0d773348164771d9a46e1ec308dcd9396561e21d"`
[INFO] running `"docker" "rm" "-f" "554b32a65735d30f3742717e0d773348164771d9a46e1ec308dcd9396561e21d"`
[INFO] [stdout] 554b32a65735d30f3742717e0d773348164771d9a46e1ec308dcd9396561e21d