[INFO] updating cached repository https://github.com/JoNil/serious_synth_thing
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a5edf7c4e0959f15c38079f187645afee210bd0c
[INFO] checking JoNil/serious_synth_thing against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoNil%2Fserious_synth_thing" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JoNil/serious_synth_thing on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/JoNil/serious_synth_thing
[INFO] finished tweaking git repo https://github.com/JoNil/serious_synth_thing
[INFO] tweaked toml for git repo https://github.com/JoNil/serious_synth_thing written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/JoNil/serious_synth_thing already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 00d9f7a1269a4d80439c40edebd8250282fd5538c744098aa7a619a42854c8db
[INFO] running `"docker" "start" "-a" "00d9f7a1269a4d80439c40edebd8250282fd5538c744098aa7a619a42854c8db"`
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking lazy_static v0.2.5
[INFO] [stderr]     Checking futures v0.1.11
[INFO] [stderr]    Compiling alsa-sys v0.1.1
[INFO] [stderr]     Checking cpal v0.8.0
[INFO] [stderr] error[E0606]: casting `f32` as `i16` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cpal-0.8.0/src/samples_formats.rs:135:13
[INFO] [stderr]     |
[INFO] [stderr] 135 |             (*self * ::std::i16::MAX as f32) as i16
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i16` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cpal-0.8.0/src/samples_formats.rs:137:13
[INFO] [stderr]     |
[INFO] [stderr] 137 |             (-*self * ::std::i16::MIN as f32) as i16
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `u16` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cpal-0.8.0/src/samples_formats.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 |         (((*self + 1.0) * 0.5) * ::std::u16::MAX as f32).round() as u16
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `cpal`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "00d9f7a1269a4d80439c40edebd8250282fd5538c744098aa7a619a42854c8db"`
[INFO] running `"docker" "rm" "-f" "00d9f7a1269a4d80439c40edebd8250282fd5538c744098aa7a619a42854c8db"`
[INFO] [stdout] 00d9f7a1269a4d80439c40edebd8250282fd5538c744098aa7a619a42854c8db