[INFO] crate delta_e 0.2.1 is already in cache
[INFO] checking delta_e-0.2.1 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate delta_e 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate delta_e 0.2.1 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate delta_e 0.2.1
[INFO] finished tweaking crates.io crate delta_e 0.2.1
[INFO] tweaked toml for crates.io crate delta_e 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] de62cb7f1251f2de41e6e3a36cd2fb938fa28c5ee48d99a115e9171754c7ae92
[INFO] running `"docker" "start" "-a" "de62cb7f1251f2de41e6e3a36cd2fb938fa28c5ee48d99a115e9171754c7ae92"`
[INFO] [stderr]     Checking lab v0.7.2
[INFO] [stderr] error[E0606]: casting `f32` as `u8` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lab-0.7.2/src/lib.rs:151:5
[INFO] [stderr]     |
[INFO] [stderr] 151 | /     ((if c > 0.0031308 {
[INFO] [stderr] 152 | |         1.055 * c.powf(1.0 / 2.4) - 0.055
[INFO] [stderr] 153 | |     } else {
[INFO] [stderr] 154 | |         12.92 * c
[INFO] [stderr] ...   |
[INFO] [stderr] 157 | |         .min(255.0)
[INFO] [stderr] 158 | |         .max(0.0) as u8
[INFO] [stderr]     | |_______________________^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `u8` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lab-0.7.2/src/simd/labs_to_rgbs.rs:258:17
[INFO] [stderr]     |
[INFO] [stderr] 258 |         *rgb = [r as u8, g as u8, b as u8];
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `u8` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lab-0.7.2/src/simd/labs_to_rgbs.rs:258:26
[INFO] [stderr]     |
[INFO] [stderr] 258 |         *rgb = [r as u8, g as u8, b as u8];
[INFO] [stderr]     |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `u8` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lab-0.7.2/src/simd/labs_to_rgbs.rs:258:35
[INFO] [stderr]     |
[INFO] [stderr] 258 |         *rgb = [r as u8, g as u8, b as u8];
[INFO] [stderr]     |                                   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `lab`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "de62cb7f1251f2de41e6e3a36cd2fb938fa28c5ee48d99a115e9171754c7ae92"`
[INFO] running `"docker" "rm" "-f" "de62cb7f1251f2de41e6e3a36cd2fb938fa28c5ee48d99a115e9171754c7ae92"`
[INFO] [stdout] de62cb7f1251f2de41e6e3a36cd2fb938fa28c5ee48d99a115e9171754c7ae92