Sep 01 20:39:44.332 INFO checking floyd-warshall-0.0.3 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 20:39:44.332 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 20:39:44.332 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-1/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 20:39:44.554 INFO blam! 1d10d3843f099317be2d787f498729ba30fc5b21f77350fe40a5ea4a185c20bb
Sep 01 20:39:44.556 INFO running `"docker" "start" "-a" "1d10d3843f099317be2d787f498729ba30fc5b21f77350fe40a5ea4a185c20bb"`
Sep 01 20:39:45.259 INFO kablam!     Checking floyd-warshall v0.0.3 (file:///source)
Sep 01 20:39:45.753 INFO kablam! warning: unused import: `std::fmt`
Sep 01 20:39:45.753 INFO kablam!  --> src/matrices.rs:1:5
Sep 01 20:39:45.753 INFO kablam!   |
Sep 01 20:39:45.753 INFO kablam! 1 | use std::fmt;
Sep 01 20:39:45.753 INFO kablam!   |     ^^^^^^^^
Sep 01 20:39:45.754 INFO kablam!   |
Sep 01 20:39:45.754 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 01 20:39:45.754 INFO kablam! 
Sep 01 20:39:45.754 INFO kablam! warning: unused import: `std::fmt::Debug`
Sep 01 20:39:45.754 INFO kablam!  --> src/matrices.rs:2:5
Sep 01 20:39:45.754 INFO kablam!   |
Sep 01 20:39:45.754 INFO kablam! 2 | use std::fmt::Debug;
Sep 01 20:39:45.754 INFO kablam!   |     ^^^^^^^^^^^^^^^
Sep 01 20:39:45.754 INFO kablam! 
Sep 01 20:39:45.942 INFO kablam! warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Sep 01 20:39:45.942 INFO kablam!  --> src/lib.rs:4:12
Sep 01 20:39:45.942 INFO kablam!   |
Sep 01 20:39:45.942 INFO kablam! 4 | #![feature(conservative_impl_trait)]
Sep 01 20:39:45.942 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 20:39:45.942 INFO kablam!   |
Sep 01 20:39:45.943 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 01 20:39:45.943 INFO kablam! 
Sep 01 20:39:46.026 INFO kablam! warning: unused import: `std::fmt`
Sep 01 20:39:46.026 INFO kablam!  --> src/matrices.rs:1:5
Sep 01 20:39:46.026 INFO kablam!   |
Sep 01 20:39:46.026 INFO kablam! 1 | use std::fmt;
Sep 01 20:39:46.026 INFO kablam!   |     ^^^^^^^^
Sep 01 20:39:46.026 INFO kablam!   |
Sep 01 20:39:46.026 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 01 20:39:46.026 INFO kablam! 
Sep 01 20:39:46.026 INFO kablam! warning: unused import: `std::fmt::Debug`
Sep 01 20:39:46.026 INFO kablam!  --> src/matrices.rs:2:5
Sep 01 20:39:46.027 INFO kablam!   |
Sep 01 20:39:46.027 INFO kablam! 2 | use std::fmt::Debug;
Sep 01 20:39:46.027 INFO kablam!   |     ^^^^^^^^^^^^^^^
Sep 01 20:39:46.027 INFO kablam! 
Sep 01 20:39:46.381 INFO kablam! warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Sep 01 20:39:46.381 INFO kablam!  --> src/lib.rs:4:12
Sep 01 20:39:46.381 INFO kablam!   |
Sep 01 20:39:46.382 INFO kablam! 4 | #![feature(conservative_impl_trait)]
Sep 01 20:39:46.382 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 20:39:46.382 INFO kablam!   |
Sep 01 20:39:46.382 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 01 20:39:46.382 INFO kablam! 
Sep 01 20:39:46.400 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
Sep 01 20:39:46.403 INFO kablam! su: No module specific data is present
Sep 01 20:39:46.863 INFO running `"docker" "rm" "-f" "1d10d3843f099317be2d787f498729ba30fc5b21f77350fe40a5ea4a185c20bb"`
Sep 01 20:39:46.961 INFO blam! 1d10d3843f099317be2d787f498729ba30fc5b21f77350fe40a5ea4a185c20bb