Sep 04 17:36:35.001 INFO checking floyd-warshall-0.0.3 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 04 17:36:35.001 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 04 17:36:35.001 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-3/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/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 +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 17:36:35.157 INFO blam! c29260edbe83596cc66c70aa3b22016ca7523848faee376979e5e2cb40bc7b7b
Sep 04 17:36:35.159 INFO running `"docker" "start" "-a" "c29260edbe83596cc66c70aa3b22016ca7523848faee376979e5e2cb40bc7b7b"`
Sep 04 17:36:35.807 INFO kablam!     Checking floyd-warshall v0.0.3 (file:///source)
Sep 04 17:36:36.380 INFO kablam! warning: unused import: `std::fmt`
Sep 04 17:36:36.380 INFO kablam!  --> src/matrices.rs:1:5
Sep 04 17:36:36.380 INFO kablam!   |
Sep 04 17:36:36.380 INFO kablam! 1 | use std::fmt;
Sep 04 17:36:36.380 INFO kablam!   |     ^^^^^^^^
Sep 04 17:36:36.380 INFO kablam!   |
Sep 04 17:36:36.380 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 04 17:36:36.380 INFO kablam! 
Sep 04 17:36:36.380 INFO kablam! warning: unused import: `std::fmt::Debug`
Sep 04 17:36:36.380 INFO kablam!  --> src/matrices.rs:2:5
Sep 04 17:36:36.380 INFO kablam!   |
Sep 04 17:36:36.380 INFO kablam! 2 | use std::fmt::Debug;
Sep 04 17:36:36.381 INFO kablam!   |     ^^^^^^^^^^^^^^^
Sep 04 17:36:36.381 INFO kablam! 
Sep 04 17:36:36.590 INFO kablam! warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Sep 04 17:36:36.590 INFO kablam!  --> src/lib.rs:4:12
Sep 04 17:36:36.590 INFO kablam!   |
Sep 04 17:36:36.590 INFO kablam! 4 | #![feature(conservative_impl_trait)]
Sep 04 17:36:36.590 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 04 17:36:36.590 INFO kablam!   |
Sep 04 17:36:36.590 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 04 17:36:36.590 INFO kablam! 
Sep 04 17:36:36.664 INFO kablam! warning: unused import: `std::fmt`
Sep 04 17:36:36.664 INFO kablam!  --> src/matrices.rs:1:5
Sep 04 17:36:36.664 INFO kablam!   |
Sep 04 17:36:36.664 INFO kablam! 1 | use std::fmt;
Sep 04 17:36:36.664 INFO kablam!   |     ^^^^^^^^
Sep 04 17:36:36.664 INFO kablam!   |
Sep 04 17:36:36.664 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 04 17:36:36.664 INFO kablam! 
Sep 04 17:36:36.664 INFO kablam! warning: unused import: `std::fmt::Debug`
Sep 04 17:36:36.665 INFO kablam!  --> src/matrices.rs:2:5
Sep 04 17:36:36.665 INFO kablam!   |
Sep 04 17:36:36.665 INFO kablam! 2 | use std::fmt::Debug;
Sep 04 17:36:36.665 INFO kablam!   |     ^^^^^^^^^^^^^^^
Sep 04 17:36:36.665 INFO kablam! 
Sep 04 17:36:37.252 INFO kablam! warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Sep 04 17:36:37.252 INFO kablam!  --> src/lib.rs:4:12
Sep 04 17:36:37.252 INFO kablam!   |
Sep 04 17:36:37.252 INFO kablam! 4 | #![feature(conservative_impl_trait)]
Sep 04 17:36:37.252 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 04 17:36:37.252 INFO kablam!   |
Sep 04 17:36:37.252 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 04 17:36:37.252 INFO kablam! 
Sep 04 17:36:37.273 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
Sep 04 17:36:37.276 INFO kablam! su: No module specific data is present
Sep 04 17:36:37.671 INFO running `"docker" "rm" "-f" "c29260edbe83596cc66c70aa3b22016ca7523848faee376979e5e2cb40bc7b7b"`
Sep 04 17:36:37.784 INFO blam! c29260edbe83596cc66c70aa3b22016ca7523848faee376979e5e2cb40bc7b7b