Sep 06 06:53:04.036 INFO checking from_variants-0.4.0 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 06:53:04.036 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 06:53:04.036 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-7/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 06:53:04.274 INFO blam! 5a36f991859cc53f87857f61103defdff0f8154972d6289e6c3327b24ddc02a8
Sep 06 06:53:04.275 INFO running `"docker" "start" "-a" "5a36f991859cc53f87857f61103defdff0f8154972d6289e6c3327b24ddc02a8"`
Sep 06 06:53:05.574 INFO kablam! usermod: no changes
Sep 06 06:53:05.678 INFO kablam!    Compiling ident_case v1.0.0
Sep 06 06:53:05.693 INFO kablam!    Compiling error-chain v0.11.0
Sep 06 06:53:05.722 INFO kablam!    Compiling syn v0.13.11
Sep 06 06:53:25.055 INFO kablam!    Compiling darling_core v0.5.0
Sep 06 06:53:30.999 INFO kablam!    Compiling darling_macro v0.5.0
Sep 06 06:53:33.126 INFO kablam!    Compiling darling v0.5.0
Sep 06 06:53:34.292 INFO kablam!    Compiling from_variants_impl v0.4.0
Sep 06 06:53:38.169 INFO kablam!     Checking from_variants v0.4.0 (file:///source)
Sep 06 06:53:39.860 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 34.25s
Sep 06 06:53:39.868 INFO kablam! su: No module specific data is present
Sep 06 06:53:40.716 INFO running `"docker" "rm" "-f" "5a36f991859cc53f87857f61103defdff0f8154972d6289e6c3327b24ddc02a8"`
Sep 06 06:53:40.790 INFO blam! 5a36f991859cc53f87857f61103defdff0f8154972d6289e6c3327b24ddc02a8