Sep 02 14:14:11.669 INFO checking floyd-warshall-0.0.3 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 02 14:14:11.669 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 02 14:14:11.669 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/try#952c7dbfa2628309f557b367929ffc17af20b332:/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 +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 14:14:11.834 INFO blam! 00388f29b53f24982697bf2b071604b59172908512a5fe85c2a73c8b15ffaf60
Sep 02 14:14:11.836 INFO running `"docker" "start" "-a" "00388f29b53f24982697bf2b071604b59172908512a5fe85c2a73c8b15ffaf60"`
Sep 02 14:14:12.562 INFO kablam!     Checking floyd-warshall v0.0.3 (file:///source)
Sep 02 14:14:13.252 INFO kablam! warning: unused import: `std::fmt`
Sep 02 14:14:13.252 INFO kablam!  --> src/matrices.rs:1:5
Sep 02 14:14:13.252 INFO kablam!   |
Sep 02 14:14:13.252 INFO kablam! 1 | use std::fmt;
Sep 02 14:14:13.252 INFO kablam!   |     ^^^^^^^^
Sep 02 14:14:13.252 INFO kablam!   |
Sep 02 14:14:13.252 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 02 14:14:13.252 INFO kablam! 
Sep 02 14:14:13.252 INFO kablam! warning: unused import: `std::fmt::Debug`
Sep 02 14:14:13.252 INFO kablam!  --> src/matrices.rs:2:5
Sep 02 14:14:13.252 INFO kablam!   |
Sep 02 14:14:13.253 INFO kablam! 2 | use std::fmt::Debug;
Sep 02 14:14:13.253 INFO kablam!   |     ^^^^^^^^^^^^^^^
Sep 02 14:14:13.253 INFO kablam! 
Sep 02 14:14:13.360 INFO kablam! warning: unused import: `std::fmt`
Sep 02 14:14:13.360 INFO kablam!  --> src/matrices.rs:1:5
Sep 02 14:14:13.360 INFO kablam!   |
Sep 02 14:14:13.360 INFO kablam! 1 | use std::fmt;
Sep 02 14:14:13.360 INFO kablam!   |     ^^^^^^^^
Sep 02 14:14:13.360 INFO kablam!   |
Sep 02 14:14:13.360 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 02 14:14:13.360 INFO kablam! 
Sep 02 14:14:13.360 INFO kablam! warning: unused import: `std::fmt::Debug`
Sep 02 14:14:13.360 INFO kablam!  --> src/matrices.rs:2:5
Sep 02 14:14:13.360 INFO kablam!   |
Sep 02 14:14:13.360 INFO kablam! 2 | use std::fmt::Debug;
Sep 02 14:14:13.361 INFO kablam!   |     ^^^^^^^^^^^^^^^
Sep 02 14:14:13.361 INFO kablam! 
Sep 02 14:14:13.483 INFO kablam! warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Sep 02 14:14:13.483 INFO kablam!  --> src/lib.rs:4:12
Sep 02 14:14:13.483 INFO kablam!   |
Sep 02 14:14:13.483 INFO kablam! 4 | #![feature(conservative_impl_trait)]
Sep 02 14:14:13.483 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 02 14:14:13.483 INFO kablam!   |
Sep 02 14:14:13.483 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 02 14:14:13.483 INFO kablam! 
Sep 02 14:14:13.831 INFO kablam! warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Sep 02 14:14:13.831 INFO kablam!  --> src/lib.rs:4:12
Sep 02 14:14:13.831 INFO kablam!   |
Sep 02 14:14:13.831 INFO kablam! 4 | #![feature(conservative_impl_trait)]
Sep 02 14:14:13.831 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 02 14:14:13.831 INFO kablam!   |
Sep 02 14:14:13.831 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 02 14:14:13.831 INFO kablam! 
Sep 02 14:14:13.860 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
Sep 02 14:14:13.863 INFO kablam! su: No module specific data is present
Sep 02 14:14:14.244 INFO running `"docker" "rm" "-f" "00388f29b53f24982697bf2b071604b59172908512a5fe85c2a73c8b15ffaf60"`
Sep 02 14:14:14.361 INFO blam! 00388f29b53f24982697bf2b071604b59172908512a5fe85c2a73c8b15ffaf60