Sep 21 04:56:20.093 INFO checking regex_generate-0.2.0 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 04:56:20.093 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 04:56:20.093 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-6/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 04:56:20.364 INFO blam! 5a2e59a8b78c5ddf98010366b1f4d2d183581eb81e3f926ebb5426cd1feb5e1d
Sep 21 04:56:20.368 INFO running `"docker" "start" "-a" "5a2e59a8b78c5ddf98010366b1f4d2d183581eb81e3f926ebb5426cd1feb5e1d"`
Sep 21 04:56:21.415 INFO kablam! usermod: no changes
Sep 21 04:56:21.534 INFO kablam!     Checking regex_generate v0.2.0 (/source)
Sep 21 04:56:22.502 INFO kablam! warning: unused import: `regex_syntax::Expr`
Sep 21 04:56:22.502 INFO kablam!    --> src/lib.rs:142:9
Sep 21 04:56:22.502 INFO kablam!     |
Sep 21 04:56:22.502 INFO kablam! 142 |     use regex_syntax::Expr;
Sep 21 04:56:22.502 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^
Sep 21 04:56:22.502 INFO kablam!     |
Sep 21 04:56:22.502 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 21 04:56:22.502 INFO kablam! 
Sep 21 04:56:23.758 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.31s
Sep 21 04:56:23.770 INFO kablam! su: No module specific data is present
Sep 21 04:56:24.712 INFO running `"docker" "rm" "-f" "5a2e59a8b78c5ddf98010366b1f4d2d183581eb81e3f926ebb5426cd1feb5e1d"`
Sep 21 04:56:24.865 INFO blam! 5a2e59a8b78c5ddf98010366b1f4d2d183581eb81e3f926ebb5426cd1feb5e1d