Aug 02 02:34:23.430 INFO checking pdf-canvas-0.5.4 against 1.27.2 for lazy_static-1
Aug 02 02:34:23.430 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:34:23.430 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:34:23.430 INFO running `"docker" "create" "-v" "/tmp/crater.etkFimTGLAfn:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 02:34:23.686 INFO blam! b56ceb2d02fb003ac0e530417a96aa191745c599174ac0b3c5831cd17e3d60b1
Aug 02 02:34:23.688 INFO running `"docker" "start" "-a" "b56ceb2d02fb003ac0e530417a96aa191745c599174ac0b3c5831cd17e3d60b1"`
Aug 02 02:34:24.651 INFO kablam!    Compiling pdf-canvas v0.5.4 (file:///source)
Aug 02 02:34:25.383 INFO kablam! warning: variable does not need to be mutable
Aug 02 02:34:25.383 INFO kablam!   --> src/build_metrics.rs:37:9
Aug 02 02:34:25.383 INFO kablam!    |
Aug 02 02:34:25.383 INFO kablam! 37 |     let mut f = &mut File::create(&dst).unwrap();
Aug 02 02:34:25.383 INFO kablam!    |         ----^
Aug 02 02:34:25.383 INFO kablam!    |         |
Aug 02 02:34:25.384 INFO kablam!    |         help: remove this `mut`
Aug 02 02:34:25.384 INFO kablam!    |
Aug 02 02:34:25.384 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 02 02:34:25.384 INFO kablam! 
Aug 02 02:34:33.863 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.28s
Aug 02 02:34:33.869 INFO kablam! su: No module specific data is present
Aug 02 02:34:34.662 INFO running `"docker" "rm" "-f" "b56ceb2d02fb003ac0e530417a96aa191745c599174ac0b3c5831cd17e3d60b1"`
Aug 02 02:34:34.821 INFO blam! b56ceb2d02fb003ac0e530417a96aa191745c599174ac0b3c5831cd17e3d60b1