Aug 30 03:55:16.587 INFO checking serial-0.4.0 against try#2d477f9981361618ac78253c28051a66b6cea125 for pr-53707
Aug 30 03:55:16.587 INFO running: cargo +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets
Aug 30 03:55:16.587 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53707/try#2d477f9981361618ac78253c28051a66b6cea125:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-3/try#2d477f9981361618ac78253c28051a66b6cea125:/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 +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 03:55:16.821 INFO blam! ec2eeb1dfae6918344125fbdf8f15d811086f00db088b7a8888f95b0b423030f
Aug 30 03:55:16.823 INFO running `"docker" "start" "-a" "ec2eeb1dfae6918344125fbdf8f15d811086f00db088b7a8888f95b0b423030f"`
Aug 30 03:55:17.487 INFO kablam!     Checking serial-unix v0.4.0
Aug 30 03:55:17.982 INFO kablam!     Checking serial v0.4.0 (file:///source)
Aug 30 03:55:18.864 INFO kablam! warning: unused import: `std::io::prelude`
Aug 30 03:55:18.864 INFO kablam!  --> examples/read_write.rs:6:5
Aug 30 03:55:18.864 INFO kablam!   |
Aug 30 03:55:18.864 INFO kablam! 6 | use std::io::prelude::*;
Aug 30 03:55:18.864 INFO kablam!   |     ^^^^^^^^^^^^^^^^
Aug 30 03:55:18.864 INFO kablam!   |
Aug 30 03:55:18.864 INFO kablam!   = note: #[warn(unused_imports)] on by default
Aug 30 03:55:18.864 INFO kablam! 
Aug 30 03:55:18.973 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
Aug 30 03:55:18.975 INFO kablam! su: No module specific data is present
Aug 30 03:55:19.450 INFO running `"docker" "rm" "-f" "ec2eeb1dfae6918344125fbdf8f15d811086f00db088b7a8888f95b0b423030f"`
Aug 30 03:55:19.540 INFO blam! ec2eeb1dfae6918344125fbdf8f15d811086f00db088b7a8888f95b0b423030f