[INFO] crate density 0.5.1 is already in cache
[INFO] checking density-0.5.1 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate density 0.5.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate density 0.5.1 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate density 0.5.1
[INFO] finished tweaking crates.io crate density 0.5.1
[INFO] tweaked toml for crates.io crate density 0.5.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 8231b2e5666411db303c93ff2d106f834b74c85a154b1cdb256eea5b4aa66b6b
[INFO] running `"docker" "start" "-a" "8231b2e5666411db303c93ff2d106f834b74c85a154b1cdb256eea5b4aa66b6b"`
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking density v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0606]: casting `f64` as `u32` is invalid
[INFO] [stderr]   --> src/main.rs:94:30
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let power = base.pow(index as u32);
[INFO] [stderr]    |                              ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `usize` is invalid
[INFO] [stderr]   --> src/main.rs:99:22
[INFO] [stderr]    |
[INFO] [stderr] 99 |             SUFFIXES[index as usize],
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `density`.
[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[E0606]: casting `f64` as `u32` is invalid
[INFO] [stderr]   --> src/main.rs:94:30
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let power = base.pow(index as u32);
[INFO] [stderr]    |                              ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `usize` is invalid
[INFO] [stderr]   --> src/main.rs:99:22
[INFO] [stderr]    |
[INFO] [stderr] 99 |             SUFFIXES[index as usize],
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `density`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8231b2e5666411db303c93ff2d106f834b74c85a154b1cdb256eea5b4aa66b6b"`
[INFO] running `"docker" "rm" "-f" "8231b2e5666411db303c93ff2d106f834b74c85a154b1cdb256eea5b4aa66b6b"`
[INFO] [stdout] 8231b2e5666411db303c93ff2d106f834b74c85a154b1cdb256eea5b4aa66b6b