Aug 30 08:40:52.790 INFO checking pdf-0.5.2 against master#ede55518431154bc761f7b2438cce9078c162700 for pr-53707
Aug 30 08:40:52.790 INFO running: cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets
Aug 30 08:40:52.790 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53707/master#ede55518431154bc761f7b2438cce9078c162700:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-3/master#ede55518431154bc761f7b2438cce9078c162700:/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 +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 08:40:52.975 INFO blam! 8c96acc4e6f284db278ad064b674678b9f52472e80136c6082bc956b3277b072
Aug 30 08:40:52.978 INFO running `"docker" "start" "-a" "8c96acc4e6f284db278ad064b674678b9f52472e80136c6082bc956b3277b072"`
Aug 30 08:40:53.664 INFO kablam!    Compiling pdf v0.5.2 (file:///source)
Aug 30 08:40:54.318 INFO kablam! warning: variable does not need to be mutable
Aug 30 08:40:54.318 INFO kablam!   --> src/build_metrics.rs:37:9
Aug 30 08:40:54.318 INFO kablam!    |
Aug 30 08:40:54.318 INFO kablam! 37 |     let mut f = &mut File::create(&dst).unwrap();
Aug 30 08:40:54.319 INFO kablam!    |         ----^
Aug 30 08:40:54.319 INFO kablam!    |         |
Aug 30 08:40:54.319 INFO kablam!    |         help: remove this `mut`
Aug 30 08:40:54.319 INFO kablam!    |
Aug 30 08:40:54.319 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 30 08:40:54.319 INFO kablam! 
Aug 30 08:40:58.789 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.16s
Aug 30 08:40:58.794 INFO kablam! su: No module specific data is present
Aug 30 08:40:59.200 INFO running `"docker" "rm" "-f" "8c96acc4e6f284db278ad064b674678b9f52472e80136c6082bc956b3277b072"`
Aug 30 08:40:59.289 INFO blam! 8c96acc4e6f284db278ad064b674678b9f52472e80136c6082bc956b3277b072