Sep 21 08:00:37.142 INFO checking ktensor-0.1.0 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 08:00:37.142 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 08:00:37.142 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-6/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 08:00:40.472 INFO blam! 919df6e2cbab35a222afae7741a123b8ac1fa413b7ba646344e0247a383ffadf
Sep 21 08:00:40.473 INFO running `"docker" "start" "-a" "919df6e2cbab35a222afae7741a123b8ac1fa413b7ba646344e0247a383ffadf"`
Sep 21 08:00:42.766 INFO kablam! usermod: no changes
Sep 21 08:00:42.802 INFO kablam!     Checking ktensor v0.1.0 (/source)
Sep 21 08:00:43.879 INFO kablam! warning: function is never used: `read_u8`
Sep 21 08:00:43.879 INFO kablam!  --> tests/mnist.rs:9:1
Sep 21 08:00:43.879 INFO kablam!   |
Sep 21 08:00:43.879 INFO kablam! 9 | fn read_u8(reader: &mut Read) -> u8 {
Sep 21 08:00:43.879 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 08:00:43.879 INFO kablam!   |
Sep 21 08:00:43.879 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 21 08:00:43.879 INFO kablam! 
Sep 21 08:00:43.897 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
Sep 21 08:00:43.899 INFO kablam! su: No module specific data is present
Sep 21 08:00:45.374 INFO running `"docker" "rm" "-f" "919df6e2cbab35a222afae7741a123b8ac1fa413b7ba646344e0247a383ffadf"`
Sep 21 08:00:45.518 INFO blam! 919df6e2cbab35a222afae7741a123b8ac1fa413b7ba646344e0247a383ffadf