Sep 14 08:37:34.826 INFO checking sprs-0.6.2 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 08:37:34.826 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 08:37:34.826 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-5/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 08:37:34.993 INFO blam! 89610daed538545c2c3c5eef627a41fa67ef0bb8e483bb645ccc56121052b678
Sep 14 08:37:34.995 INFO running `"docker" "start" "-a" "89610daed538545c2c3c5eef627a41fa67ef0bb8e483bb645ccc56121052b678"`
Sep 14 08:37:35.731 INFO kablam! usermod: no changes
Sep 14 08:37:35.811 INFO kablam!    Compiling ndarray v0.10.14
Sep 14 08:37:44.869 INFO kablam!     Checking sprs v0.6.2 (file:///source)
Sep 14 08:37:49.475 INFO kablam! warning: unused arithmetic operation which must be used
Sep 14 08:37:49.475 INFO kablam!   --> benches/sparse_dense_products.rs:33:9
Sep 14 08:37:49.475 INFO kablam!    |
Sep 14 08:37:49.475 INFO kablam! 33 |         &a * &w;
Sep 14 08:37:49.475 INFO kablam!    |         ^^^^^^^
Sep 14 08:37:49.475 INFO kablam!    |
Sep 14 08:37:49.475 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 14 08:37:49.475 INFO kablam! 
Sep 14 08:37:49.627 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 13.87s
Sep 14 08:37:49.628 INFO kablam! su: No module specific data is present
Sep 14 08:37:50.622 INFO running `"docker" "rm" "-f" "89610daed538545c2c3c5eef627a41fa67ef0bb8e483bb645ccc56121052b678"`
Sep 14 08:37:50.754 INFO blam! 89610daed538545c2c3c5eef627a41fa67ef0bb8e483bb645ccc56121052b678