[INFO] cloning repository stanipintjuk/prime_sieve
[INFO] running `"git" "clone" "--bare" "git://github.com/stanipintjuk/prime_sieve.git" "work/cache/sources/gh/stanipintjuk/prime_sieve"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/stanipintjuk/prime_sieve'...
[INFO] running `"git" "clone" "work/cache/sources/gh/stanipintjuk/prime_sieve" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/stanipintjuk/prime_sieve"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/stanipintjuk/prime_sieve'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/stanipintjuk/prime_sieve" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/stanipintjuk/prime_sieve"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/stanipintjuk/prime_sieve'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e7e279c6f6f3b278cda2a4f4a9f78c5112fb33bb
[INFO] sha for GitHub repo stanipintjuk/prime_sieve: e7e279c6f6f3b278cda2a4f4a9f78c5112fb33bb
[INFO] validating manifest of stanipintjuk/prime_sieve on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of stanipintjuk/prime_sieve on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing stanipintjuk/prime_sieve
[INFO] finished frobbing stanipintjuk/prime_sieve
[INFO] frobbed toml for stanipintjuk/prime_sieve written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/stanipintjuk/prime_sieve/Cargo.toml
[INFO] started frobbing stanipintjuk/prime_sieve
[INFO] finished frobbing stanipintjuk/prime_sieve
[INFO] frobbed toml for stanipintjuk/prime_sieve written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/stanipintjuk/prime_sieve/Cargo.toml
[INFO] crate stanipintjuk/prime_sieve already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking stanipintjuk/prime_sieve against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/stanipintjuk/prime_sieve:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 745c590805f5b005d087f69f31c2ce7a9dcabdadf1221d96588ca3c39fdf7d27
[INFO] running `"docker" "start" "-a" "745c590805f5b005d087f69f31c2ce7a9dcabdadf1221d96588ca3c39fdf7d27"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking prime_sieve v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `part`
[INFO] [stderr]    --> src/sieve/pool.rs:100:14
[INFO] [stderr]     |
[INFO] [stderr] 100 |         for (part, thread) in threadparts {}
[INFO] [stderr]     |              ^^^^ help: consider prefixing with an underscore: `_part`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `thread`
[INFO] [stderr]    --> src/sieve/pool.rs:100:20
[INFO] [stderr]     |
[INFO] [stderr] 100 |         for (part, thread) in threadparts {}
[INFO] [stderr]     |                    ^^^^^^ help: consider prefixing with an underscore: `_thread`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `prime_page`
[INFO] [stderr]   --> src/sieve/pool.rs:94:18
[INFO] [stderr]    |
[INFO] [stderr] 94 |                  prime_page: Vec<u64>,
[INFO] [stderr]    |                  ^^^^^^^^^^ help: consider prefixing with an underscore: `_prime_page`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `stop`
[INFO] [stderr]    --> src/sieve/pool.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     pub fn stop(&self) -> Result<(), ThreadPoolError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sieve`
[INFO] [stderr]   --> src/sieve/worker.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Sieve(ArcVec, ArcVec),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Stop`
[INFO] [stderr]   --> src/sieve/worker.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Stop,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Ok`
[INFO] [stderr]   --> src/sieve/worker.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Ok,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `part`
[INFO] [stderr]    --> src/sieve/pool.rs:100:14
[INFO] [stderr]     |
[INFO] [stderr] 100 |         for (part, thread) in threadparts {}
[INFO] [stderr]     |              ^^^^ help: consider prefixing with an underscore: `_part`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `thread`
[INFO] [stderr]    --> src/sieve/pool.rs:100:20
[INFO] [stderr]     |
[INFO] [stderr] 100 |         for (part, thread) in threadparts {}
[INFO] [stderr]     |                    ^^^^^^ help: consider prefixing with an underscore: `_thread`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `prime_page`
[INFO] [stderr]   --> src/sieve/pool.rs:94:18
[INFO] [stderr]    |
[INFO] [stderr] 94 |                  prime_page: Vec<u64>,
[INFO] [stderr]    |                  ^^^^^^^^^^ help: consider prefixing with an underscore: `_prime_page`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `stop`
[INFO] [stderr]    --> src/sieve/pool.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     pub fn stop(&self) -> Result<(), ThreadPoolError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sieve`
[INFO] [stderr]   --> src/sieve/worker.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Sieve(ArcVec, ArcVec),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Stop`
[INFO] [stderr]   --> src/sieve/worker.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Stop,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Ok`
[INFO] [stderr]   --> src/sieve/worker.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Ok,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "745c590805f5b005d087f69f31c2ce7a9dcabdadf1221d96588ca3c39fdf7d27"`
[INFO] running `"docker" "rm" "-f" "745c590805f5b005d087f69f31c2ce7a9dcabdadf1221d96588ca3c39fdf7d27"`
[INFO] [stdout] 745c590805f5b005d087f69f31c2ce7a9dcabdadf1221d96588ca3c39fdf7d27