Sep 14 16:23:44.535 INFO checking from_variants-0.3.0 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 16:23:44.536 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 16:23:44.536 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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 +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 16:23:44.899 INFO blam! 901eb377bcc1b9147b670657b9312c1c29a2bc4abcec50e8a6e4fe7ae95f811e
Sep 14 16:23:44.910 INFO running `"docker" "start" "-a" "901eb377bcc1b9147b670657b9312c1c29a2bc4abcec50e8a6e4fe7ae95f811e"`
Sep 14 16:23:46.590 INFO kablam! usermod: no changes
Sep 14 16:23:46.703 INFO kablam!    Compiling ident_case v1.0.0
Sep 14 16:23:46.711 INFO kablam!    Compiling syn v0.13.11
Sep 14 16:24:08.347 INFO kablam!    Compiling darling_core v0.4.0
Sep 14 16:24:15.509 INFO kablam!    Compiling darling_macro v0.4.0
Sep 14 16:24:18.083 INFO kablam!    Compiling darling v0.4.0
Sep 14 16:24:19.552 INFO kablam!    Compiling from_variants_impl v0.3.0
Sep 14 16:24:23.084 INFO kablam!     Checking from_variants v0.3.0 (file:///source)
Sep 14 16:24:23.796 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 37.16s
Sep 14 16:24:23.799 INFO kablam! su: No module specific data is present
Sep 14 16:24:24.537 INFO running `"docker" "rm" "-f" "901eb377bcc1b9147b670657b9312c1c29a2bc4abcec50e8a6e4fe7ae95f811e"`
Sep 14 16:24:24.642 INFO blam! 901eb377bcc1b9147b670657b9312c1c29a2bc4abcec50e8a6e4fe7ae95f811e