Sep 04 11:30:55.863 INFO checking pdf-0.5.2 against master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8 for pr-53913
Sep 04 11:30:55.863 INFO running: cargo +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets
Sep 04 11:30:55.864 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53913/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-2/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/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 +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 11:30:56.111 INFO blam! d45db09e10226925646ed6b03c5ca89635e1c1ad6dd3051e8d50623a13c282b6
Sep 04 11:30:56.113 INFO running `"docker" "start" "-a" "d45db09e10226925646ed6b03c5ca89635e1c1ad6dd3051e8d50623a13c282b6"`
Sep 04 11:30:56.812 INFO kablam!    Compiling pdf v0.5.2 (file:///source)
Sep 04 11:30:57.344 INFO kablam! warning: variable does not need to be mutable
Sep 04 11:30:57.344 INFO kablam!   --> src/build_metrics.rs:37:9
Sep 04 11:30:57.344 INFO kablam!    |
Sep 04 11:30:57.344 INFO kablam! 37 |     let mut f = &mut File::create(&dst).unwrap();
Sep 04 11:30:57.344 INFO kablam!    |         ----^
Sep 04 11:30:57.345 INFO kablam!    |         |
Sep 04 11:30:57.345 INFO kablam!    |         help: remove this `mut`
Sep 04 11:30:57.345 INFO kablam!    |
Sep 04 11:30:57.345 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 04 11:30:57.345 INFO kablam! 
Sep 04 11:31:01.014 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.23s
Sep 04 11:31:01.019 INFO kablam! su: No module specific data is present
Sep 04 11:31:01.631 INFO running `"docker" "rm" "-f" "d45db09e10226925646ed6b03c5ca89635e1c1ad6dd3051e8d50623a13c282b6"`
Sep 04 11:31:01.715 INFO blam! d45db09e10226925646ed6b03c5ca89635e1c1ad6dd3051e8d50623a13c282b6