Sep 01 20:25:54.793 INFO checking from_variants_impl-0.4.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 20:25:54.793 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 20:25:54.793 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-0/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 20:25:54.939 INFO blam! 11c5ca0a72476166258a26d55843edde8c390aeb572a941b53339fb6cb6e61a5
Sep 01 20:25:54.941 INFO running `"docker" "start" "-a" "11c5ca0a72476166258a26d55843edde8c390aeb572a941b53339fb6cb6e61a5"`
Sep 01 20:25:55.928 INFO kablam!     Checking ident_case v1.0.0
Sep 01 20:25:55.928 INFO kablam!     Checking difference v1.0.0
Sep 01 20:25:55.929 INFO kablam!     Checking error-chain v0.11.0
Sep 01 20:25:55.932 INFO kablam!     Checking syn v0.13.11
Sep 01 20:25:55.940 INFO kablam!    Compiling darling_core v0.5.0
Sep 01 20:25:57.896 INFO kablam!     Checking pretty_assertions v0.1.2
Sep 01 20:26:13.563 INFO kablam!    Compiling darling_macro v0.5.0
Sep 01 20:26:25.271 INFO kablam!     Checking darling v0.5.0
Sep 01 20:26:27.608 INFO kablam!     Checking from_variants_impl v0.4.0 (file:///source)
Sep 01 20:26:33.050 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 37.19s
Sep 01 20:26:33.055 INFO kablam! su: No module specific data is present
Sep 01 20:26:33.677 INFO running `"docker" "rm" "-f" "11c5ca0a72476166258a26d55843edde8c390aeb572a941b53339fb6cb6e61a5"`
Sep 01 20:26:33.795 INFO blam! 11c5ca0a72476166258a26d55843edde8c390aeb572a941b53339fb6cb6e61a5