Sep 10 15:55:22.197 INFO checking ktensor-0.1.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 15:55:22.197 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 15:55:22.197 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-3/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 15:55:22.402 INFO blam! 774a309e3731a23b8eb70f24a042741c36ea64879e5c8c5712c91b3e9928fa08
Sep 10 15:55:22.404 INFO running `"docker" "start" "-a" "774a309e3731a23b8eb70f24a042741c36ea64879e5c8c5712c91b3e9928fa08"`
Sep 10 15:55:23.282 INFO kablam! usermod: no changes
Sep 10 15:55:23.322 INFO kablam!     Checking ktensor v0.1.0 (file:///source)
Sep 10 15:55:24.990 INFO kablam! warning: function is never used: `read_u8`
Sep 10 15:55:24.990 INFO kablam!  --> tests/mnist.rs:9:1
Sep 10 15:55:24.990 INFO kablam!   |
Sep 10 15:55:24.990 INFO kablam! 9 | fn read_u8(reader: &mut Read) -> u8 {
Sep 10 15:55:24.990 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 15:55:24.990 INFO kablam!   |
Sep 10 15:55:24.990 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 10 15:55:24.990 INFO kablam! 
Sep 10 15:55:25.029 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
Sep 10 15:55:25.030 INFO kablam! su: No module specific data is present
Sep 10 15:55:25.764 INFO running `"docker" "rm" "-f" "774a309e3731a23b8eb70f24a042741c36ea64879e5c8c5712c91b3e9928fa08"`
Sep 10 15:55:25.846 INFO blam! 774a309e3731a23b8eb70f24a042741c36ea64879e5c8c5712c91b3e9928fa08