Sep 10 21:50:03.879 INFO checking byte-sequence-0.1.0 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 21:50:03.879 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 21:50:03.879 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-2/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 21:50:04.016 INFO blam! e83d1b7c867c94f67487b15f2d283387fcc22ccba13927a4b53c9113e341f87a
Sep 10 21:50:04.017 INFO running `"docker" "start" "-a" "e83d1b7c867c94f67487b15f2d283387fcc22ccba13927a4b53c9113e341f87a"`
Sep 10 21:50:05.024 INFO kablam! usermod: no changes
Sep 10 21:50:05.063 INFO kablam!     Checking byte-sequence v0.1.0 (file:///source)
Sep 10 21:50:05.612 INFO kablam! warning: unused imports: `Deserialize`, `Serialize`
Sep 10 21:50:05.612 INFO kablam!    --> src/lib.rs:125:17
Sep 10 21:50:05.612 INFO kablam!     |
Sep 10 21:50:05.612 INFO kablam! 125 |     use serde::{Serialize, Serializer, Deserialize, Deserializer};
Sep 10 21:50:05.612 INFO kablam!     |                 ^^^^^^^^^              ^^^^^^^^^^^
Sep 10 21:50:05.612 INFO kablam!     |
Sep 10 21:50:05.612 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 10 21:50:05.612 INFO kablam! 
Sep 10 21:50:05.801 INFO kablam! warning: unused import: `Serializer`
Sep 10 21:50:05.801 INFO kablam!    --> src/lib.rs:125:28
Sep 10 21:50:05.801 INFO kablam!     |
Sep 10 21:50:05.801 INFO kablam! 125 |     use serde::{Serialize, Serializer, Deserialize, Deserializer};
Sep 10 21:50:05.801 INFO kablam!     |                            ^^^^^^^^^^
Sep 10 21:50:05.801 INFO kablam! 
Sep 10 21:50:05.801 INFO kablam! warning: unused import: `Deserializer`
Sep 10 21:50:05.801 INFO kablam!    --> src/lib.rs:125:53
Sep 10 21:50:05.801 INFO kablam!     |
Sep 10 21:50:05.801 INFO kablam! 125 |     use serde::{Serialize, Serializer, Deserialize, Deserializer};
Sep 10 21:50:05.801 INFO kablam!     |                                                     ^^^^^^^^^^^^
Sep 10 21:50:05.801 INFO kablam! 
Sep 10 21:50:05.897 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
Sep 10 21:50:05.900 INFO kablam! su: No module specific data is present
Sep 10 21:50:06.807 INFO running `"docker" "rm" "-f" "e83d1b7c867c94f67487b15f2d283387fcc22ccba13927a4b53c9113e341f87a"`
Sep 10 21:50:06.930 INFO blam! e83d1b7c867c94f67487b15f2d283387fcc22ccba13927a4b53c9113e341f87a