Jul 12 09:31:13.524 INFO checking floyd-warshall-0.0.3 against master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9 for pr-52234
Jul 12 09:31:13.524 INFO running: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 12 09:31:13.524 INFO creating container for: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 12 09:31:13.524 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-52234/master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-1/master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9:/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 +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 12 09:31:13.797 INFO blam! 90c89ecc50401212a2b3bc223b81faa3b16050ea8e69dbd79d72a8896d6b748f
Jul 12 09:31:13.797 INFO running `"docker" "start" "-a" "90c89ecc50401212a2b3bc223b81faa3b16050ea8e69dbd79d72a8896d6b748f"`
Jul 12 09:31:14.829 INFO kablam!     Checking floyd-warshall v0.0.3 (file:///source)
Jul 12 09:31:15.593 INFO kablam! warning: unused import: `std::fmt`
Jul 12 09:31:15.593 INFO kablam!  --> src/matrices.rs:1:5
Jul 12 09:31:15.593 INFO kablam!   |
Jul 12 09:31:15.593 INFO kablam! 1 | use std::fmt;
Jul 12 09:31:15.593 INFO kablam!   |     ^^^^^^^^
Jul 12 09:31:15.593 INFO kablam!   |
Jul 12 09:31:15.593 INFO kablam!   = note: #[warn(unused_imports)] on by default
Jul 12 09:31:15.593 INFO kablam! 
Jul 12 09:31:15.594 INFO kablam! warning: unused import: `std::fmt::Debug`
Jul 12 09:31:15.594 INFO kablam!  --> src/matrices.rs:2:5
Jul 12 09:31:15.594 INFO kablam!   |
Jul 12 09:31:15.594 INFO kablam! 2 | use std::fmt::Debug;
Jul 12 09:31:15.594 INFO kablam!   |     ^^^^^^^^^^^^^^^
Jul 12 09:31:15.594 INFO kablam! 
Jul 12 09:31:15.931 INFO kablam! warning: unused import: `std::fmt`
Jul 12 09:31:15.931 INFO kablam!  --> src/matrices.rs:1:5
Jul 12 09:31:15.931 INFO kablam!   |
Jul 12 09:31:15.931 INFO kablam! 1 | use std::fmt;
Jul 12 09:31:15.931 INFO kablam!   |     ^^^^^^^^
Jul 12 09:31:15.931 INFO kablam!   |
Jul 12 09:31:15.931 INFO kablam!   = note: #[warn(unused_imports)] on by default
Jul 12 09:31:15.931 INFO kablam! 
Jul 12 09:31:15.932 INFO kablam! warning: unused import: `std::fmt::Debug`
Jul 12 09:31:15.932 INFO kablam!  --> src/matrices.rs:2:5
Jul 12 09:31:15.932 INFO kablam!   |
Jul 12 09:31:15.932 INFO kablam! 2 | use std::fmt::Debug;
Jul 12 09:31:15.932 INFO kablam!   |     ^^^^^^^^^^^^^^^
Jul 12 09:31:15.932 INFO kablam! 
Jul 12 09:31:16.045 INFO kablam! warning: this feature has been stable since 1.26.0. Attribute no longer needed
Jul 12 09:31:16.045 INFO kablam!  --> src/lib.rs:4:12
Jul 12 09:31:16.045 INFO kablam!   |
Jul 12 09:31:16.045 INFO kablam! 4 | #![feature(conservative_impl_trait)]
Jul 12 09:31:16.045 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Jul 12 09:31:16.045 INFO kablam!   |
Jul 12 09:31:16.045 INFO kablam!   = note: #[warn(stable_features)] on by default
Jul 12 09:31:16.045 INFO kablam! 
Jul 12 09:31:16.688 INFO kablam! warning: this feature has been stable since 1.26.0. Attribute no longer needed
Jul 12 09:31:16.688 INFO kablam!  --> src/lib.rs:4:12
Jul 12 09:31:16.688 INFO kablam!   |
Jul 12 09:31:16.688 INFO kablam! 4 | #![feature(conservative_impl_trait)]
Jul 12 09:31:16.688 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Jul 12 09:31:16.688 INFO kablam!   |
Jul 12 09:31:16.688 INFO kablam!   = note: #[warn(stable_features)] on by default
Jul 12 09:31:16.688 INFO kablam! 
Jul 12 09:31:16.749 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
Jul 12 09:31:16.767 INFO kablam! su: No module specific data is present
Jul 12 09:31:17.306 INFO running `"docker" "rm" "-f" "90c89ecc50401212a2b3bc223b81faa3b16050ea8e69dbd79d72a8896d6b748f"`
Jul 12 09:31:17.469 INFO blam! 90c89ecc50401212a2b3bc223b81faa3b16050ea8e69dbd79d72a8896d6b748f