[INFO] crate frame_timer 0.1.2 is already in cache
[INFO] extracting crate frame_timer 0.1.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/frame_timer/0.1.2
[INFO] extracting crate frame_timer 0.1.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/frame_timer/0.1.2
[INFO] validating manifest of frame_timer-0.1.2 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 frame_timer-0.1.2 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 frame_timer-0.1.2
[INFO] finished frobbing frame_timer-0.1.2
[INFO] frobbed toml for frame_timer-0.1.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/frame_timer/0.1.2/Cargo.toml
[INFO] started frobbing frame_timer-0.1.2
[INFO] finished frobbing frame_timer-0.1.2
[INFO] frobbed toml for frame_timer-0.1.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/frame_timer/0.1.2/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 frame_timer-0.1.2 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-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/frame_timer/0.1.2:/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] e07670b66771572511c9196fbbd4fe71f75cda0838f9f872f9875ef66dd418da
[INFO] running `"docker" "start" "-a" "e07670b66771572511c9196fbbd4fe71f75cda0838f9f872f9875ef66dd418da"`
[INFO] [stderr]    Compiling frame_timer v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/frame_timer.rs:63:27
[INFO] [stderr]    |
[INFO] [stderr] 63 |         self.delta_time = self.frame_duration.as_millis();
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected u64, found u128
[INFO] [stderr] help: you can convert an `u128` to `u64` and panic if the converted value wouldn't fit
[INFO] [stderr]    |
[INFO] [stderr] 63 |         self.delta_time = self.frame_duration.as_millis().try_into().unwrap();
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `frame_timer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e07670b66771572511c9196fbbd4fe71f75cda0838f9f872f9875ef66dd418da"`
[INFO] running `"docker" "rm" "-f" "e07670b66771572511c9196fbbd4fe71f75cda0838f9f872f9875ef66dd418da"`
[INFO] [stdout] e07670b66771572511c9196fbbd4fe71f75cda0838f9f872f9875ef66dd418da