[INFO] cloning repository https://github.com/stephen-lazaro/reuler
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stephen-lazaro/reuler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephen-lazaro%2Freuler"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephen-lazaro%2Freuler'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fe82e9aab2bfce29c3107a4d10ed7bae9ae39908
[INFO] checking stephen-lazaro/reuler against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephen-lazaro%2Freuler" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stephen-lazaro/reuler 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/stephen-lazaro/reuler
[INFO] finished tweaking git repo https://github.com/stephen-lazaro/reuler
[INFO] tweaked toml for git repo https://github.com/stephen-lazaro/reuler written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/stephen-lazaro/reuler 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-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] 2832c99dd4f858a0a7d22c27578e985fc34acd8f7fe6fb948d94abd518880083
[INFO] running `"docker" "start" "-a" "2832c99dd4f858a0a7d22c27578e985fc34acd8f7fe6fb948d94abd518880083"`
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking itertools v0.7.3
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking reuler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unknown lint: `unused_import`
[INFO] [stderr]  --> src/lib.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[allow(unused_import)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: did you mean: `unused_imports`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `unused_import`
[INFO] [stderr]  --> src/lib.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[allow(unused_import)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: did you mean: `unused_imports`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use] extern crate itertools;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i32` is invalid
[INFO] [stderr]  --> src/eulers/shared/primes.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let sqrt_bound = (bound as f32) .sqrt () as i32;
[INFO] [stderr]   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `u64` is invalid
[INFO] [stderr]   --> src/eulers/shared/primes.rs:17:22
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let sqrt_bound = (bound as f64) .sqrt () as u64;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i32` is invalid
[INFO] [stderr]   --> src/eulers/shared/primes.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |     for i in 2..((prod as f32).sqrt() as i32) {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `u64` is invalid
[INFO] [stderr]   --> src/eulers/shared/primes.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 |     for i in 2..((prod as f64).sqrt() as u64) {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `u64` is invalid
[INFO] [stderr]   --> src/eulers/shared/primes.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |     for i in 2..((prod as f64).sqrt() as u64) {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors; 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `reuler`.
[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" "2832c99dd4f858a0a7d22c27578e985fc34acd8f7fe6fb948d94abd518880083"`
[INFO] running `"docker" "rm" "-f" "2832c99dd4f858a0a7d22c27578e985fc34acd8f7fe6fb948d94abd518880083"`
[INFO] [stdout] 2832c99dd4f858a0a7d22c27578e985fc34acd8f7fe6fb948d94abd518880083