Sep 10 16:57:48.758 INFO checking gumdrop-0.4.0 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 16:57:48.758 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 16:57:48.758 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-4/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 16:57:48.996 INFO blam! 9f5290006ed222d63a7e9f398d0fed3a955f7788f102cb1f563ab96fe175f7bd
Sep 10 16:57:48.999 INFO running `"docker" "start" "-a" "9f5290006ed222d63a7e9f398d0fed3a955f7788f102cb1f563ab96fe175f7bd"`
Sep 10 16:57:49.531 INFO kablam! usermod: no changes
Sep 10 16:57:49.576 INFO kablam!    Compiling syn v0.13.11
Sep 10 16:57:56.279 INFO kablam!    Compiling gumdrop_derive v0.4.1
Sep 10 16:57:59.405 INFO kablam!     Checking gumdrop v0.4.0 (file:///source)
Sep 10 16:58:00.516 INFO kablam! warning: unused `#[macro_use]` import
Sep 10 16:58:00.516 INFO kablam!  --> examples/options.rs:2:1
Sep 10 16:58:00.516 INFO kablam!   |
Sep 10 16:58:00.516 INFO kablam! 2 | #[macro_use] extern crate gumdrop_derive;
Sep 10 16:58:00.516 INFO kablam!   | ^^^^^^^^^^^^
Sep 10 16:58:00.516 INFO kablam!   |
Sep 10 16:58:00.516 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 16:58:00.516 INFO kablam! 
Sep 10 16:58:00.618 INFO kablam! warning: unused `#[macro_use]` import
Sep 10 16:58:00.618 INFO kablam!  --> examples/commands.rs:2:1
Sep 10 16:58:00.618 INFO kablam!   |
Sep 10 16:58:00.618 INFO kablam! 2 | #[macro_use] extern crate gumdrop_derive;
Sep 10 16:58:00.618 INFO kablam!   | ^^^^^^^^^^^^
Sep 10 16:58:00.626 INFO kablam!   |
Sep 10 16:58:00.626 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 16:58:00.626 INFO kablam! 
Sep 10 16:58:01.610 INFO kablam! warning: unused `#[macro_use]` import
Sep 10 16:58:01.610 INFO kablam!  --> tests/options.rs:2:1
Sep 10 16:58:01.610 INFO kablam!   |
Sep 10 16:58:01.610 INFO kablam! 2 | #[macro_use] extern crate gumdrop;
Sep 10 16:58:01.610 INFO kablam!   | ^^^^^^^^^^^^
Sep 10 16:58:01.610 INFO kablam!   |
Sep 10 16:58:01.610 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 16:58:01.610 INFO kablam! 
Sep 10 16:58:02.645 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 13.09s
Sep 10 16:58:02.649 INFO kablam! su: No module specific data is present
Sep 10 16:58:03.372 INFO running `"docker" "rm" "-f" "9f5290006ed222d63a7e9f398d0fed3a955f7788f102cb1f563ab96fe175f7bd"`
Sep 10 16:58:03.496 INFO blam! 9f5290006ed222d63a7e9f398d0fed3a955f7788f102cb1f563ab96fe175f7bd