[INFO] updating cached repository dwango/mizumochi
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dwango/mizumochi
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dwango/mizumochi" "work/ex/beta-1.37-6/sources/1.36.0/gh/dwango/mizumochi"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/dwango/mizumochi'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dwango/mizumochi" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dwango/mizumochi"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dwango/mizumochi'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4ab6b43e8e5364ae1bdacaa77b4e9d14746d459e
[INFO] sha for GitHub repo dwango/mizumochi: 4ab6b43e8e5364ae1bdacaa77b4e9d14746d459e
[INFO] validating manifest of dwango/mizumochi 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 dwango/mizumochi 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 dwango/mizumochi
[INFO] finished frobbing dwango/mizumochi
[INFO] frobbed toml for dwango/mizumochi written to work/ex/beta-1.37-6/sources/1.36.0/gh/dwango/mizumochi/Cargo.toml
[INFO] started frobbing dwango/mizumochi
[INFO] finished frobbing dwango/mizumochi
[INFO] frobbed toml for dwango/mizumochi written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dwango/mizumochi/Cargo.toml
[INFO] crate dwango/mizumochi already has a lockfile, it will not be regenerated
[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 dwango/mizumochi 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/dwango/mizumochi:/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] afd33f8a830244076c3203ead73d3e18870bff8b76d6c8a5571c1922e3b04a62
[INFO] running `"docker" "start" "-a" "afd33f8a830244076c3203ead73d3e18870bff8b76d6c8a5571c1922e3b04a62"`
[INFO] [stderr]    Compiling serde v1.0.64
[INFO] [stderr]    Compiling trackable v0.2.17
[INFO] [stderr]    Compiling nom v2.2.1
[INFO] [stderr]    Compiling atomic_immut v0.1.4
[INFO] [stderr]    Compiling splay_tree v0.2.10
[INFO] [stderr]    Compiling nbchan v0.1.2
[INFO] [stderr]    Compiling factory v0.1.1
[INFO] [stderr]    Compiling slog v2.2.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.4
[INFO] [stderr]    Compiling isatty v0.1.8
[INFO] [stderr]    Compiling rustc_version v0.2.2
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling url v1.7.0
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]    Compiling slog-async v2.3.0
[INFO] [stderr]    Compiling slog-term v2.4.0
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.7.0/src/form_urlencoded.rs:261:40
[INFO] [stderr]     |
[INFO] [stderr] 259 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 260 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 261 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stderr]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr] 
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling fibers v0.1.10
[INFO] [stderr]    Compiling syn v0.14.1
[INFO] [stderr]    Compiling serde_derive v1.0.64
[INFO] [stderr]    Compiling serde_json v1.0.19
[INFO] [stderr]    Compiling bytecodec v0.4.4
[INFO] [stderr]    Compiling prometrics v0.1.11
[INFO] [stderr]    Compiling httpcodec v0.2.2
[INFO] [stderr]    Compiling fibers_http_server v0.1.7
[INFO] [stderr]    Compiling mizumochi v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 24s
[INFO] running `"docker" "inspect" "afd33f8a830244076c3203ead73d3e18870bff8b76d6c8a5571c1922e3b04a62"`
[INFO] running `"docker" "rm" "-f" "afd33f8a830244076c3203ead73d3e18870bff8b76d6c8a5571c1922e3b04a62"`
[INFO] [stdout] afd33f8a830244076c3203ead73d3e18870bff8b76d6c8a5571c1922e3b04a62
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/dwango/mizumochi:/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] 06c39b07ba375b3e165af30af497ef5af79cf21b19e1ff47158fb9b19e43b9a8
[INFO] running `"docker" "start" "-a" "06c39b07ba375b3e165af30af497ef5af79cf21b19e1ff47158fb9b19e43b9a8"`
[INFO] [stderr]    Compiling mizumochi v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.91s
[INFO] running `"docker" "inspect" "06c39b07ba375b3e165af30af497ef5af79cf21b19e1ff47158fb9b19e43b9a8"`
[INFO] running `"docker" "rm" "-f" "06c39b07ba375b3e165af30af497ef5af79cf21b19e1ff47158fb9b19e43b9a8"`
[INFO] [stdout] 06c39b07ba375b3e165af30af497ef5af79cf21b19e1ff47158fb9b19e43b9a8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/dwango/mizumochi:/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] 9de3b23257b6d6c72fcf69d1eb20f646af5b4c9e78fda78ca33c8c3d9b62d642
[INFO] running `"docker" "start" "-a" "9de3b23257b6d6c72fcf69d1eb20f646af5b4c9e78fda78ca33c8c3d9b62d642"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mizumochi-9ddae7e5cd29de46
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test state::tests::test_toggle_mode_keep_unstable ... ok
[INFO] [stdout] test state::tests::test_toggle_mode_keep_stable ... ok
[INFO] [stdout] test state::tests::test_state_manager ... ok
[INFO] [stdout] test state::tests::test_toggle_mode_stable_to_unstable ... ok
[INFO] [stdout] test state::tests::test_toggle_mode ... ok
[INFO] [stdout] test config::speed::tests::test_speed_new ... ok
[INFO] [stdout] test mizumochi::tests::test_compute_sleep_duration_to_adjust_speed ... ok
[INFO] [stdout] test state::tests::test_toggle_mode_unstable_to_stable ... 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" "9de3b23257b6d6c72fcf69d1eb20f646af5b4c9e78fda78ca33c8c3d9b62d642"`
[INFO] running `"docker" "rm" "-f" "9de3b23257b6d6c72fcf69d1eb20f646af5b4c9e78fda78ca33c8c3d9b62d642"`
[INFO] [stdout] 9de3b23257b6d6c72fcf69d1eb20f646af5b4c9e78fda78ca33c8c3d9b62d642