Aug 01 22:34:29.189 INFO checking serial-0.4.0 against 1.27.2 for lazy_static-1
Aug 01 22:34:29.190 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:34:29.190 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:34:29.190 INFO running `"docker" "create" "-v" "/tmp/crater.heq55SwNTF8j:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 01 22:34:29.447 INFO blam! 4288cf9bb5755dd88cde38884755e5f4cc6608b7123d1e687f8161af3f027c3e
Aug 01 22:34:29.449 INFO running `"docker" "start" "-a" "4288cf9bb5755dd88cde38884755e5f4cc6608b7123d1e687f8161af3f027c3e"`
Aug 01 22:34:30.332 INFO kablam!     Checking serial v0.4.0 (file:///source)
Aug 01 22:34:31.128 INFO kablam! warning: unused import: `std::io::prelude`
Aug 01 22:34:31.128 INFO kablam!  --> examples/read_write.rs:6:5
Aug 01 22:34:31.128 INFO kablam!   |
Aug 01 22:34:31.128 INFO kablam! 6 | use std::io::prelude::*;
Aug 01 22:34:31.128 INFO kablam!   |     ^^^^^^^^^^^^^^^^
Aug 01 22:34:31.128 INFO kablam!   |
Aug 01 22:34:31.128 INFO kablam!   = note: #[warn(unused_imports)] on by default
Aug 01 22:34:31.128 INFO kablam! 
Aug 01 22:34:31.224 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
Aug 01 22:34:31.226 INFO kablam! su: No module specific data is present
Aug 01 22:34:31.960 INFO running `"docker" "rm" "-f" "4288cf9bb5755dd88cde38884755e5f4cc6608b7123d1e687f8161af3f027c3e"`
Aug 01 22:34:32.092 INFO blam! 4288cf9bb5755dd88cde38884755e5f4cc6608b7123d1e687f8161af3f027c3e