[INFO] crate mech-utilities 0.0.4 is already in cache
[INFO] checking mech-utilities-0.0.4 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate mech-utilities 0.0.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mech-utilities 0.0.4 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mech-utilities 0.0.4
[INFO] finished tweaking crates.io crate mech-utilities 0.0.4
[INFO] tweaked toml for crates.io crate mech-utilities 0.0.4 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] 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-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] 312b883399f29b8c9208500d5199b53d7616ea0eb875e6194c798eafbf4e74f0
[INFO] running `"docker" "start" "-a" "312b883399f29b8c9208500d5199b53d7616ea0eb875e6194c798eafbf4e74f0"`
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking ahash v0.3.3
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]     Checking mech-core v0.0.4
[INFO] [stderr] error[E0606]: casting `f64` as `u64` is invalid
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mech-core-0.0.4/src/table.rs:67:32
[INFO] [stderr]    |
[INFO] [stderr] 67 |       Value::Number(n) => Some(n.to_float() as u64),
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i64` is invalid
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mech-core-0.0.4/src/quantities.rs:97:27
[INFO] [stderr]    |
[INFO] [stderr] 97 |       let real_exponent = exp_log.floor() as i64 + 1;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i64` is invalid
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mech-core-0.0.4/src/quantities.rs:98:27
[INFO] [stderr]    |
[INFO] [stderr] 98 |       let real_mantissa = (((mantissa as f64) * 10f64.powf(exp_log.fract()))) as i64;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `u32` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mech-core-0.0.4/src/quantities.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |     let r = (2u64.pow(hi) as f64).log10().ceil() as u32;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `u64` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mech-core-0.0.4/src/quantities.rs:122:24
[INFO] [stderr]     |
[INFO] [stderr] 122 |     let remaining_10 = (thing as f64).log10().floor() as u64;
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `u64` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mech-core-0.0.4/src/quantities.rs:254:9
[INFO] [stderr]     |
[INFO] [stderr] 254 |         self.to_float() as u64
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `mech-core`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "312b883399f29b8c9208500d5199b53d7616ea0eb875e6194c798eafbf4e74f0"`
[INFO] running `"docker" "rm" "-f" "312b883399f29b8c9208500d5199b53d7616ea0eb875e6194c798eafbf4e74f0"`
[INFO] [stdout] 312b883399f29b8c9208500d5199b53d7616ea0eb875e6194c798eafbf4e74f0