[INFO] crate ether-dream 0.2.5 is already in cache
[INFO] checking ether-dream-0.2.5 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate ether-dream 0.2.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ether-dream 0.2.5 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ether-dream 0.2.5
[INFO] finished tweaking crates.io crate ether-dream 0.2.5
[INFO] tweaked toml for crates.io crate ether-dream 0.2.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate ether-dream 0.2.5 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 41140f698a85df40dc6615d09d25968a7e39565b201eb7abd0ebaa5158aeea78
[INFO] running `"docker" "start" "-a" "41140f698a85df40dc6615d09d25968a7e39565b201eb7abd0ebaa5158aeea78"`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ether-dream v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0606]: casting `f32` as `u16` is invalid
[INFO] [stderr]   --> examples/dac_stream.rs:28:28
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let points_per_frame = (points_per_second as f32 / frames_per_second) as u16;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i16` is invalid
[INFO] [stderr]    --> examples/dac_stream.rs:132:17
[INFO] [stderr]     |
[INFO] [stderr] 132 |         let x = (x_min as f32 + fract * (x_max as f32 - x_min as f32)) as i16;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i16` is invalid
[INFO] [stderr]    --> examples/dac_stream.rs:133:17
[INFO] [stderr]     |
[INFO] [stderr] 133 |         let y = (amp * x_max as f32) as i16;
[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 `ether-dream`.
[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" "41140f698a85df40dc6615d09d25968a7e39565b201eb7abd0ebaa5158aeea78"`
[INFO] running `"docker" "rm" "-f" "41140f698a85df40dc6615d09d25968a7e39565b201eb7abd0ebaa5158aeea78"`
[INFO] [stdout] 41140f698a85df40dc6615d09d25968a7e39565b201eb7abd0ebaa5158aeea78