Nov 28 07:25:09.616 INFO checking cowang4/rusty_primes against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 07:25:09.617 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 28 07:25:10.113 INFO [stdout] ccd816e21e777428c3cf6ff8b1ac23d41cd21809daced59dfb4755230a4711ad
Nov 28 07:25:10.118 INFO running `"docker" "start" "-a" "ccd816e21e777428c3cf6ff8b1ac23d41cd21809daced59dfb4755230a4711ad"`
Nov 28 07:25:11.604 INFO [stderr] usermod: no changes
Nov 28 07:25:11.704 INFO [stderr]     Checking rusty_primes v0.1.0 (/source)
Nov 28 07:25:12.339 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 28 07:25:12.339 INFO [stderr]   --> src/main.rs:14:9
Nov 28 07:25:12.340 INFO [stderr]    |
Nov 28 07:25:12.341 INFO [stderr] 14 | /         ((i*i)..n)
Nov 28 07:25:12.341 INFO [stderr] 15 | |             .step_by(i)
Nov 28 07:25:12.341 INFO [stderr] 16 | |             .map(|i| primes[i] = false)
Nov 28 07:25:12.342 INFO [stderr] 17 | |             .collect::<()>();
Nov 28 07:25:12.342 INFO [stderr]    | |_____________________________^
Nov 28 07:25:12.342 INFO [stderr]    |
Nov 28 07:25:12.342 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 07:25:12.343 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 28 07:25:12.343 INFO [stderr] 
Nov 28 07:25:12.343 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 28 07:25:12.343 INFO [stderr]   --> src/main.rs:30:5
Nov 28 07:25:12.344 INFO [stderr]    |
Nov 28 07:25:12.344 INFO [stderr] 30 | /     primes
Nov 28 07:25:12.344 INFO [stderr] 31 | |         .iter()
Nov 28 07:25:12.345 INFO [stderr] 32 | |         .map(|i| println!("{}", i))
Nov 28 07:25:12.345 INFO [stderr] 33 | |         .collect::<()>();
Nov 28 07:25:12.345 INFO [stderr]    | |_________________________^
Nov 28 07:25:12.345 INFO [stderr]    |
Nov 28 07:25:12.346 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 28 07:25:12.346 INFO [stderr] 
Nov 28 07:25:12.484 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 28 07:25:12.484 INFO [stderr]   --> src/main.rs:14:9
Nov 28 07:25:12.484 INFO [stderr]    |
Nov 28 07:25:12.484 INFO [stderr] 14 | /         ((i*i)..n)
Nov 28 07:25:12.484 INFO [stderr] 15 | |             .step_by(i)
Nov 28 07:25:12.484 INFO [stderr] 16 | |             .map(|i| primes[i] = false)
Nov 28 07:25:12.484 INFO [stderr] 17 | |             .collect::<()>();
Nov 28 07:25:12.484 INFO [stderr]    | |_____________________________^
Nov 28 07:25:12.484 INFO [stderr]    |
Nov 28 07:25:12.484 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 07:25:12.484 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 28 07:25:12.484 INFO [stderr] 
Nov 28 07:25:12.484 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 28 07:25:12.484 INFO [stderr]   --> src/main.rs:30:5
Nov 28 07:25:12.484 INFO [stderr]    |
Nov 28 07:25:12.484 INFO [stderr] 30 | /     primes
Nov 28 07:25:12.484 INFO [stderr] 31 | |         .iter()
Nov 28 07:25:12.484 INFO [stderr] 32 | |         .map(|i| println!("{}", i))
Nov 28 07:25:12.484 INFO [stderr] 33 | |         .collect::<()>();
Nov 28 07:25:12.484 INFO [stderr]    | |_________________________^
Nov 28 07:25:12.485 INFO [stderr]    |
Nov 28 07:25:12.485 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 28 07:25:12.485 INFO [stderr] 
Nov 28 07:25:12.488 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
Nov 28 07:25:12.490 INFO [stderr] su: No module specific data is present
Nov 28 07:25:13.380 INFO running `"docker" "inspect" "ccd816e21e777428c3cf6ff8b1ac23d41cd21809daced59dfb4755230a4711ad"`
Nov 28 07:25:13.702 INFO running `"docker" "rm" "-f" "ccd816e21e777428c3cf6ff8b1ac23d41cd21809daced59dfb4755230a4711ad"`
Nov 28 07:25:13.964 INFO [stdout] ccd816e21e777428c3cf6ff8b1ac23d41cd21809daced59dfb4755230a4711ad