Sep 10 18:53:46.873 INFO checking from_variants_impl-0.4.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 18:53:46.873 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 18:53:46.873 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-2/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 18:53:47.052 INFO blam! 62db8b51070df2d7e59305c6c59dad1df9e527acdd8b747e6575074ccd0ee4b7
Sep 10 18:53:47.054 INFO running `"docker" "start" "-a" "62db8b51070df2d7e59305c6c59dad1df9e527acdd8b747e6575074ccd0ee4b7"`
Sep 10 18:53:48.078 INFO kablam! usermod: no changes
Sep 10 18:53:48.127 INFO kablam!     Checking ident_case v1.0.0
Sep 10 18:53:48.127 INFO kablam!     Checking difference v1.0.0
Sep 10 18:53:48.127 INFO kablam!     Checking error-chain v0.11.0
Sep 10 18:53:48.128 INFO kablam!     Checking syn v0.13.11
Sep 10 18:53:48.129 INFO kablam!    Compiling darling_core v0.5.0
Sep 10 18:53:48.487 INFO kablam!     Checking pretty_assertions v0.1.2
Sep 10 18:54:01.292 INFO kablam!    Compiling darling_macro v0.5.0
Sep 10 18:54:11.002 INFO kablam!     Checking darling v0.5.0
Sep 10 18:54:12.479 INFO kablam!     Checking from_variants_impl v0.4.0 (file:///source)
Sep 10 18:54:15.560 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 27.47s
Sep 10 18:54:15.564 INFO kablam! su: No module specific data is present
Sep 10 18:54:16.958 INFO running `"docker" "rm" "-f" "62db8b51070df2d7e59305c6c59dad1df9e527acdd8b747e6575074ccd0ee4b7"`
Sep 10 18:54:17.060 INFO blam! 62db8b51070df2d7e59305c6c59dad1df9e527acdd8b747e6575074ccd0ee4b7