[INFO] crate spin_sleep 0.3.7 is already in cache
[INFO] extracting crate spin_sleep 0.3.7 into work/ex/beta-1.38-1/sources/1.37.0/reg/spin_sleep/0.3.7
[INFO] extracting crate spin_sleep 0.3.7 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/spin_sleep/0.3.7
[INFO] validating manifest of spin_sleep-0.3.7 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 spin_sleep-0.3.7 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 spin_sleep-0.3.7
[INFO] finished frobbing spin_sleep-0.3.7
[INFO] frobbed toml for spin_sleep-0.3.7 written to work/ex/beta-1.38-1/sources/1.37.0/reg/spin_sleep/0.3.7/Cargo.toml
[INFO] started frobbing spin_sleep-0.3.7
[INFO] finished frobbing spin_sleep-0.3.7
[INFO] frobbed toml for spin_sleep-0.3.7 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/spin_sleep/0.3.7/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 spin_sleep-0.3.7 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-2/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/spin_sleep/0.3.7:/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] 70a191d378c5465f018fb499d8fea9c6284e5574297757ed340c8841fb5c08fb
[INFO] running `"docker" "start" "-a" "70a191d378c5465f018fb499d8fea9c6284e5574297757ed340c8841fb5c08fb"`
[INFO] [stderr]    Compiling spin_sleep v0.3.7 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "70a191d378c5465f018fb499d8fea9c6284e5574297757ed340c8841fb5c08fb"`
[INFO] running `"docker" "rm" "-f" "70a191d378c5465f018fb499d8fea9c6284e5574297757ed340c8841fb5c08fb"`
[INFO] [stdout] 70a191d378c5465f018fb499d8fea9c6284e5574297757ed340c8841fb5c08fb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/spin_sleep/0.3.7:/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] d2c0ee72593bf749c94ce5e3d2fb7eb321a0d56f3056bee49e21c9916b674715
[INFO] running `"docker" "start" "-a" "d2c0ee72593bf749c94ce5e3d2fb7eb321a0d56f3056bee49e21c9916b674715"`
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling spin_sleep v0.3.7 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `"docker" "inspect" "d2c0ee72593bf749c94ce5e3d2fb7eb321a0d56f3056bee49e21c9916b674715"`
[INFO] running `"docker" "rm" "-f" "d2c0ee72593bf749c94ce5e3d2fb7eb321a0d56f3056bee49e21c9916b674715"`
[INFO] [stdout] d2c0ee72593bf749c94ce5e3d2fb7eb321a0d56f3056bee49e21c9916b674715
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/spin_sleep/0.3.7:/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] 3c9c37676d1a95af6c8adc8bbd6062e7efcd5180629ca2fc80d284b56ecf481b
[INFO] running `"docker" "start" "-a" "3c9c37676d1a95af6c8adc8bbd6062e7efcd5180629ca2fc80d284b56ecf481b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/spin_sleep-b7f24d107187ed0a
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test print_estimated_thread_sleep_accuracy ... ignored
[INFO] [stdout] test loop_helper::loop_helper_test::duration_f64_conversion ... ok
[INFO] [stdout] test loop_helper::loop_helper_test::get_set_target_rate ... ok
[INFO] [stdout] test loop_helper::loop_helper_test::loop_sleep_already_past_target ... ok
[INFO] [stdout] test loop_helper::loop_helper_test::rate_reporting_using_seconds ... ok
[INFO] [stderr]    Doc-tests spin_sleep
[INFO] [stdout] test loop_helper::loop_helper_test::rate_reporting_using_duration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs -  (line 14) ... ok
[INFO] [stdout] test src/lib.rs -  (line 23) ... ok
[INFO] [stdout] test src/lib.rs -  (line 38) ... ok
[INFO] [stdout] test src/loop_helper.rs - loop_helper::LoopHelper (line 39) ... ok
[INFO] [stdout] test src/lib.rs -  (line 46) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3c9c37676d1a95af6c8adc8bbd6062e7efcd5180629ca2fc80d284b56ecf481b"`
[INFO] running `"docker" "rm" "-f" "3c9c37676d1a95af6c8adc8bbd6062e7efcd5180629ca2fc80d284b56ecf481b"`
[INFO] [stdout] 3c9c37676d1a95af6c8adc8bbd6062e7efcd5180629ca2fc80d284b56ecf481b