Sep 18 00:37:00.904 INFO checking floyd-warshall-0.0.3 against master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690 for pr-54033
Sep 18 00:37:00.904 INFO running: cargo +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets
Sep 18 00:37:00.904 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54033/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-7/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/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 +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 18 00:37:01.288 INFO blam! 7af716eb722b81fae424804052e58787b6a650b00d79199e4537c52a0c7c607e
Sep 18 00:37:01.290 INFO running `"docker" "start" "-a" "7af716eb722b81fae424804052e58787b6a650b00d79199e4537c52a0c7c607e"`
Sep 18 00:37:02.554 INFO kablam! usermod: no changes
Sep 18 00:37:02.621 INFO kablam!     Checking text_io v0.1.7
Sep 18 00:37:02.621 INFO kablam!     Checking floyd-warshall v0.0.3 (/source)
Sep 18 00:37:02.887 INFO kablam! warning: unused import: `std::fmt`
Sep 18 00:37:02.887 INFO kablam!  --> src/matrices.rs:1:5
Sep 18 00:37:02.887 INFO kablam!   |
Sep 18 00:37:02.887 INFO kablam! 1 | use std::fmt;
Sep 18 00:37:02.887 INFO kablam!   |     ^^^^^^^^
Sep 18 00:37:02.887 INFO kablam!   |
Sep 18 00:37:02.887 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 18 00:37:02.887 INFO kablam! 
Sep 18 00:37:02.887 INFO kablam! warning: unused import: `std::fmt::Debug`
Sep 18 00:37:02.887 INFO kablam!  --> src/matrices.rs:2:5
Sep 18 00:37:02.887 INFO kablam!   |
Sep 18 00:37:02.887 INFO kablam! 2 | use std::fmt::Debug;
Sep 18 00:37:02.887 INFO kablam!   |     ^^^^^^^^^^^^^^^
Sep 18 00:37:02.887 INFO kablam! 
Sep 18 00:37:02.993 INFO kablam! warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Sep 18 00:37:02.993 INFO kablam!  --> src/lib.rs:4:12
Sep 18 00:37:02.993 INFO kablam!   |
Sep 18 00:37:02.993 INFO kablam! 4 | #![feature(conservative_impl_trait)]
Sep 18 00:37:02.993 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 18 00:37:02.993 INFO kablam!   |
Sep 18 00:37:02.993 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 18 00:37:02.993 INFO kablam! 
Sep 18 00:37:03.259 INFO kablam! warning: unused import: `std::fmt`
Sep 18 00:37:03.259 INFO kablam!  --> src/matrices.rs:1:5
Sep 18 00:37:03.259 INFO kablam!   |
Sep 18 00:37:03.259 INFO kablam! 1 | use std::fmt;
Sep 18 00:37:03.259 INFO kablam!   |     ^^^^^^^^
Sep 18 00:37:03.259 INFO kablam!   |
Sep 18 00:37:03.259 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 18 00:37:03.259 INFO kablam! 
Sep 18 00:37:03.259 INFO kablam! warning: unused import: `std::fmt::Debug`
Sep 18 00:37:03.259 INFO kablam!  --> src/matrices.rs:2:5
Sep 18 00:37:03.259 INFO kablam!   |
Sep 18 00:37:03.259 INFO kablam! 2 | use std::fmt::Debug;
Sep 18 00:37:03.259 INFO kablam!   |     ^^^^^^^^^^^^^^^
Sep 18 00:37:03.259 INFO kablam! 
Sep 18 00:37:03.507 INFO kablam! warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Sep 18 00:37:03.507 INFO kablam!  --> src/lib.rs:4:12
Sep 18 00:37:03.507 INFO kablam!   |
Sep 18 00:37:03.507 INFO kablam! 4 | #![feature(conservative_impl_trait)]
Sep 18 00:37:03.507 INFO kablam!   |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 18 00:37:03.507 INFO kablam!   |
Sep 18 00:37:03.507 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 18 00:37:03.507 INFO kablam! 
Sep 18 00:37:03.545 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
Sep 18 00:37:03.556 INFO kablam! su: No module specific data is present
Sep 18 00:37:04.395 INFO running `"docker" "rm" "-f" "7af716eb722b81fae424804052e58787b6a650b00d79199e4537c52a0c7c607e"`
Sep 18 00:37:04.509 INFO blam! 7af716eb722b81fae424804052e58787b6a650b00d79199e4537c52a0c7c607e