Nov 30 04:58:51.366 INFO checking cowang4/rusty_primes against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 04:58:51.366 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-2/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +32252761328f59ccfadb1bafb8148c685bc830b3-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 30 04:58:51.736 INFO [stdout] 75c626c3e898ca88b76e9d7005e0156300f8a495db8ece67fb8d28689fe78d79
Nov 30 04:58:51.739 INFO running `"docker" "start" "-a" "75c626c3e898ca88b76e9d7005e0156300f8a495db8ece67fb8d28689fe78d79"`
Nov 30 04:58:53.216 INFO [stderr] usermod: no changes
Nov 30 04:58:53.268 INFO [stderr]     Checking rusty_primes v0.1.0 (/source)
Nov 30 04:58:53.766 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 30 04:58:53.766 INFO [stderr]   --> src/main.rs:14:9
Nov 30 04:58:53.766 INFO [stderr]    |
Nov 30 04:58:53.766 INFO [stderr] 14 | /         ((i*i)..n)
Nov 30 04:58:53.766 INFO [stderr] 15 | |             .step_by(i)
Nov 30 04:58:53.766 INFO [stderr] 16 | |             .map(|i| primes[i] = false)
Nov 30 04:58:53.766 INFO [stderr] 17 | |             .collect::<()>();
Nov 30 04:58:53.766 INFO [stderr]    | |_____________________________^
Nov 30 04:58:53.766 INFO [stderr]    |
Nov 30 04:58:53.766 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 04:58:53.766 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 30 04:58:53.766 INFO [stderr] 
Nov 30 04:58:53.768 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 30 04:58:53.768 INFO [stderr]   --> src/main.rs:30:5
Nov 30 04:58:53.768 INFO [stderr]    |
Nov 30 04:58:53.768 INFO [stderr] 30 | /     primes
Nov 30 04:58:53.768 INFO [stderr] 31 | |         .iter()
Nov 30 04:58:53.768 INFO [stderr] 32 | |         .map(|i| println!("{}", i))
Nov 30 04:58:53.768 INFO [stderr] 33 | |         .collect::<()>();
Nov 30 04:58:53.768 INFO [stderr]    | |_________________________^
Nov 30 04:58:53.768 INFO [stderr]    |
Nov 30 04:58:53.768 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 30 04:58:53.768 INFO [stderr] 
Nov 30 04:58:53.948 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 30 04:58:53.948 INFO [stderr]   --> src/main.rs:14:9
Nov 30 04:58:53.948 INFO [stderr]    |
Nov 30 04:58:53.948 INFO [stderr] 14 | /         ((i*i)..n)
Nov 30 04:58:53.948 INFO [stderr] 15 | |             .step_by(i)
Nov 30 04:58:53.948 INFO [stderr] 16 | |             .map(|i| primes[i] = false)
Nov 30 04:58:53.948 INFO [stderr] 17 | |             .collect::<()>();
Nov 30 04:58:53.948 INFO [stderr]    | |_____________________________^
Nov 30 04:58:53.948 INFO [stderr]    |
Nov 30 04:58:53.948 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 04:58:53.948 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 30 04:58:53.948 INFO [stderr] 
Nov 30 04:58:53.948 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 30 04:58:53.948 INFO [stderr]   --> src/main.rs:30:5
Nov 30 04:58:53.948 INFO [stderr]    |
Nov 30 04:58:53.948 INFO [stderr] 30 | /     primes
Nov 30 04:58:53.948 INFO [stderr] 31 | |         .iter()
Nov 30 04:58:53.948 INFO [stderr] 32 | |         .map(|i| println!("{}", i))
Nov 30 04:58:53.948 INFO [stderr] 33 | |         .collect::<()>();
Nov 30 04:58:53.948 INFO [stderr]    | |_________________________^
Nov 30 04:58:53.948 INFO [stderr]    |
Nov 30 04:58:53.956 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 30 04:58:53.956 INFO [stderr] 
Nov 30 04:58:53.998 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
Nov 30 04:58:54.009 INFO [stderr] su: No module specific data is present
Nov 30 04:58:55.272 INFO running `"docker" "inspect" "75c626c3e898ca88b76e9d7005e0156300f8a495db8ece67fb8d28689fe78d79"`
Nov 30 04:58:55.626 INFO running `"docker" "rm" "-f" "75c626c3e898ca88b76e9d7005e0156300f8a495db8ece67fb8d28689fe78d79"`
Nov 30 04:58:55.868 INFO [stdout] 75c626c3e898ca88b76e9d7005e0156300f8a495db8ece67fb8d28689fe78d79