Sep 04 12:48:14.187 INFO checking ktensor-0.1.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 12:48:14.187 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 12:48:14.187 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-2/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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=500" "-e" "CMD=cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 12:48:14.362 INFO blam! 46d828a90d30e50e82eb16817159007d1bc58e9180f379401e8ad6ad6408e3ad
Sep 04 12:48:14.364 INFO running `"docker" "start" "-a" "46d828a90d30e50e82eb16817159007d1bc58e9180f379401e8ad6ad6408e3ad"`
Sep 04 12:48:15.182 INFO kablam!     Checking ktensor v0.1.0 (file:///source)
Sep 04 12:48:17.738 INFO kablam! warning: function is never used: `read_u8`
Sep 04 12:48:17.739 INFO kablam!  --> tests/mnist.rs:9:1
Sep 04 12:48:17.739 INFO kablam!   |
Sep 04 12:48:17.739 INFO kablam! 9 | fn read_u8(reader: &mut Read) -> u8 {
Sep 04 12:48:17.739 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 04 12:48:17.739 INFO kablam!   |
Sep 04 12:48:17.739 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 04 12:48:17.739 INFO kablam! 
Sep 04 12:48:17.765 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.60s
Sep 04 12:48:17.771 INFO kablam! su: No module specific data is present
Sep 04 12:48:18.213 INFO running `"docker" "rm" "-f" "46d828a90d30e50e82eb16817159007d1bc58e9180f379401e8ad6ad6408e3ad"`
Sep 04 12:48:18.328 INFO blam! 46d828a90d30e50e82eb16817159007d1bc58e9180f379401e8ad6ad6408e3ad