[INFO] crate snowflake-rs 0.1.1 is already in cache
[INFO] extracting crate snowflake-rs 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/snowflake-rs/0.1.1
[INFO] extracting crate snowflake-rs 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/snowflake-rs/0.1.1
[INFO] validating manifest of snowflake-rs-0.1.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of snowflake-rs-0.1.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing snowflake-rs-0.1.1
[INFO] finished frobbing snowflake-rs-0.1.1
[INFO] frobbed toml for snowflake-rs-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/snowflake-rs/0.1.1/Cargo.toml
[INFO] started frobbing snowflake-rs-0.1.1
[INFO] finished frobbing snowflake-rs-0.1.1
[INFO] frobbed toml for snowflake-rs-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/snowflake-rs/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing snowflake-rs-0.1.1 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/snowflake-rs/0.1.1:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 92ca1067b51009afd1bf4dc30a4dbcae326cc6dead73aa8dbc85d5158b462df7
[INFO] running `"docker" "start" "-a" "92ca1067b51009afd1bf4dc30a4dbcae326cc6dead73aa8dbc85d5158b462df7"`
[INFO] [stderr]    Compiling snowflake-rs v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "92ca1067b51009afd1bf4dc30a4dbcae326cc6dead73aa8dbc85d5158b462df7"`
[INFO] running `"docker" "rm" "-f" "92ca1067b51009afd1bf4dc30a4dbcae326cc6dead73aa8dbc85d5158b462df7"`
[INFO] [stdout] 92ca1067b51009afd1bf4dc30a4dbcae326cc6dead73aa8dbc85d5158b462df7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/snowflake-rs/0.1.1:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3f7e39f86f5bfe10832d60da82948e626fe4d6c3e5fae6adae3315ec220878e8
[INFO] running `"docker" "start" "-a" "3f7e39f86f5bfe10832d60da82948e626fe4d6c3e5fae6adae3315ec220878e8"`
[INFO] [stderr]    Compiling snowflake-rs v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/snowflake.rs:136:13
[INFO] [stderr]     |
[INFO] [stderr] 136 |             t.join();
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "3f7e39f86f5bfe10832d60da82948e626fe4d6c3e5fae6adae3315ec220878e8"`
[INFO] running `"docker" "rm" "-f" "3f7e39f86f5bfe10832d60da82948e626fe4d6c3e5fae6adae3315ec220878e8"`
[INFO] [stdout] 3f7e39f86f5bfe10832d60da82948e626fe4d6c3e5fae6adae3315ec220878e8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/snowflake-rs/0.1.1:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] ffa2f994f612836f77d326dfcd8cdc912356c7db2070a379c25a86586b953559
[INFO] running `"docker" "start" "-a" "ffa2f994f612836f77d326dfcd8cdc912356c7db2070a379c25a86586b953559"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/snowflake_rs-cdcec025916a96b3
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test snowflake::test::loop_test ... ok
[INFO] [stdout] multi thread:[1] generate 1000 ids cost 0.000266250 s
[INFO] [stdout] multi thread:[6] generate 1000 ids cost 0.000264005 s
[INFO] [stdout] multi thread:[5] generate 1000 ids cost 0.000265650 s
[INFO] [stdout] multi thread:[7] generate 1000 ids cost 0.000261158 s
[INFO] [stdout] multi thread:[8] generate 1000 ids cost 0.000940161 s
[INFO] [stdout] multi thread:[2] generate 1000 ids cost 0.001004640 s
[INFO] [stdout] multi thread:[9] generate 1000 ids cost 0.000274152 s
[INFO] [stdout] multi thread:[3] generate 1000 ids cost 0.000233899 s
[INFO] [stderr]    Doc-tests snowflake-rs
[INFO] [stdout] multi thread:[4] generate 1000 ids cost 0.000254789 s
[INFO] [stdout] test snowflake::test::multi_thread ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "ffa2f994f612836f77d326dfcd8cdc912356c7db2070a379c25a86586b953559"`
[INFO] running `"docker" "rm" "-f" "ffa2f994f612836f77d326dfcd8cdc912356c7db2070a379c25a86586b953559"`
[INFO] [stdout] ffa2f994f612836f77d326dfcd8cdc912356c7db2070a379c25a86586b953559