[INFO] fetching crate rolling-stats 0.3.0...
[INFO] extracting crate rolling-stats 0.3.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/rolling-stats/0.3.0
[INFO] extracting crate rolling-stats 0.3.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rolling-stats/0.3.0
[INFO] validating manifest of rolling-stats-0.3.0 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 rolling-stats-0.3.0 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 rolling-stats-0.3.0
[INFO] finished frobbing rolling-stats-0.3.0
[INFO] frobbed toml for rolling-stats-0.3.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/rolling-stats/0.3.0/Cargo.toml
[INFO] started frobbing rolling-stats-0.3.0
[INFO] finished frobbing rolling-stats-0.3.0
[INFO] frobbed toml for rolling-stats-0.3.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rolling-stats/0.3.0/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 rolling-stats-0.3.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rolling-stats/0.3.0:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 017b97d5e83b9ebb9c2886fdde44b31ec374511a83c29093483867b8dbea0807
[INFO] running `"docker" "start" "-a" "017b97d5e83b9ebb9c2886fdde44b31ec374511a83c29093483867b8dbea0807"`
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling rolling-stats v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.22s
[INFO] running `"docker" "inspect" "017b97d5e83b9ebb9c2886fdde44b31ec374511a83c29093483867b8dbea0807"`
[INFO] running `"docker" "rm" "-f" "017b97d5e83b9ebb9c2886fdde44b31ec374511a83c29093483867b8dbea0807"`
[INFO] [stdout] 017b97d5e83b9ebb9c2886fdde44b31ec374511a83c29093483867b8dbea0807
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rolling-stats/0.3.0:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] a6cc4a1088b44a5bb4485f1f4b8ece9a7d400ed88241f474a6d5aa79747886ed
[INFO] running `"docker" "start" "-a" "a6cc4a1088b44a5bb4485f1f4b8ece9a7d400ed88241f474a6d5aa79747886ed"`
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stderr]    Compiling rolling-stats v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "a6cc4a1088b44a5bb4485f1f4b8ece9a7d400ed88241f474a6d5aa79747886ed"`
[INFO] running `"docker" "rm" "-f" "a6cc4a1088b44a5bb4485f1f4b8ece9a7d400ed88241f474a6d5aa79747886ed"`
[INFO] [stdout] a6cc4a1088b44a5bb4485f1f4b8ece9a7d400ed88241f474a6d5aa79747886ed
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rolling-stats/0.3.0:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 0af5cf8bed4961224b60a709ca40cc44e2ddccaf01d493ca1cb8d982342486d9
[INFO] running `"docker" "start" "-a" "0af5cf8bed4961224b60a709ca40cc44e2ddccaf01d493ca1cb8d982342486d9"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rolling_stats-c6e503c383b02d34
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rolling-stats
[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" "0af5cf8bed4961224b60a709ca40cc44e2ddccaf01d493ca1cb8d982342486d9"`
[INFO] running `"docker" "rm" "-f" "0af5cf8bed4961224b60a709ca40cc44e2ddccaf01d493ca1cb8d982342486d9"`
[INFO] [stdout] 0af5cf8bed4961224b60a709ca40cc44e2ddccaf01d493ca1cb8d982342486d9