Aug 02 02:34:34.673 INFO checking pdf-0.5.2 against 1.27.2 for lazy_static-1
Aug 02 02:34:34.673 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:34:34.673 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:34:34.673 INFO running `"docker" "create" "-v" "/tmp/crater.oVmFTfoMFNNU:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 02:34:34.911 INFO blam! de6ff82844120f35ac343db7f600be894464290a43c043a98ee6d4a9a817ae7f
Aug 02 02:34:34.913 INFO running `"docker" "start" "-a" "de6ff82844120f35ac343db7f600be894464290a43c043a98ee6d4a9a817ae7f"`
Aug 02 02:34:35.997 INFO kablam!    Compiling pdf v0.5.2 (file:///source)
Aug 02 02:34:36.818 INFO kablam! warning: variable does not need to be mutable
Aug 02 02:34:36.819 INFO kablam!   --> src/build_metrics.rs:37:9
Aug 02 02:34:36.819 INFO kablam!    |
Aug 02 02:34:36.819 INFO kablam! 37 |     let mut f = &mut File::create(&dst).unwrap();
Aug 02 02:34:36.819 INFO kablam!    |         ----^
Aug 02 02:34:36.819 INFO kablam!    |         |
Aug 02 02:34:36.819 INFO kablam!    |         help: remove this `mut`
Aug 02 02:34:36.819 INFO kablam!    |
Aug 02 02:34:36.819 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 02 02:34:36.819 INFO kablam! 
Aug 02 02:34:41.791 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.88s
Aug 02 02:34:41.797 INFO kablam! su: No module specific data is present
Aug 02 02:34:42.360 INFO running `"docker" "rm" "-f" "de6ff82844120f35ac343db7f600be894464290a43c043a98ee6d4a9a817ae7f"`
Aug 02 02:34:42.480 INFO blam! de6ff82844120f35ac343db7f600be894464290a43c043a98ee6d4a9a817ae7f