Sep 21 02:09:48.369 INFO checking symbolics_calculus-0.1.0 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 02:09:48.369 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 02:09:48.369 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-7/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 02:09:48.502 INFO blam! 47766fb44320b5e17cde64d7b9767814eb17fa8647e64e607a7ec41fd4763a9d
Sep 21 02:09:48.503 INFO running `"docker" "start" "-a" "47766fb44320b5e17cde64d7b9767814eb17fa8647e64e607a7ec41fd4763a9d"`
Sep 21 02:09:49.454 INFO kablam! usermod: no changes
Sep 21 02:09:49.488 INFO kablam!     Checking symbolics_core v0.1.2
Sep 21 02:09:49.710 INFO kablam!     Checking symbolics_calculus v0.1.0 (/source)
Sep 21 02:09:49.828 INFO kablam! warning: unused `#[macro_use]` import
Sep 21 02:09:49.828 INFO kablam!  --> src/lib.rs:1:1
Sep 21 02:09:49.828 INFO kablam!   |
Sep 21 02:09:49.828 INFO kablam! 1 | #[macro_use]
Sep 21 02:09:49.828 INFO kablam!   | ^^^^^^^^^^^^
Sep 21 02:09:49.828 INFO kablam!   |
Sep 21 02:09:49.828 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 21 02:09:49.828 INFO kablam! 
Sep 21 02:09:49.918 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
Sep 21 02:09:49.920 INFO kablam! su: No module specific data is present
Sep 21 02:09:50.796 INFO running `"docker" "rm" "-f" "47766fb44320b5e17cde64d7b9767814eb17fa8647e64e607a7ec41fd4763a9d"`
Sep 21 02:09:50.898 INFO blam! 47766fb44320b5e17cde64d7b9767814eb17fa8647e64e607a7ec41fd4763a9d