Aug 30 08:10:43.503 INFO checking pdf-0.5.2 against master#545f22340f72ee0efaf6463efb43a2840e3d35db for pr-53699
Aug 30 08:10:43.503 INFO running: cargo +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets
Aug 30 08:10:43.503 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53699/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-3/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/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 +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 08:10:43.682 INFO blam! 28625e157aec4cd52aa0ffc237b5bc2cd2a52402e6fdc5d586aae1df3d95afde
Aug 30 08:10:43.684 INFO running `"docker" "start" "-a" "28625e157aec4cd52aa0ffc237b5bc2cd2a52402e6fdc5d586aae1df3d95afde"`
Aug 30 08:10:44.308 INFO kablam!    Compiling pdf v0.5.2 (file:///source)
Aug 30 08:10:45.172 INFO kablam! warning: variable does not need to be mutable
Aug 30 08:10:45.172 INFO kablam!   --> src/build_metrics.rs:37:9
Aug 30 08:10:45.172 INFO kablam!    |
Aug 30 08:10:45.172 INFO kablam! 37 |     let mut f = &mut File::create(&dst).unwrap();
Aug 30 08:10:45.172 INFO kablam!    |         ----^
Aug 30 08:10:45.172 INFO kablam!    |         |
Aug 30 08:10:45.172 INFO kablam!    |         help: remove this `mut`
Aug 30 08:10:45.172 INFO kablam!    |
Aug 30 08:10:45.172 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 30 08:10:45.172 INFO kablam! 
Aug 30 08:10:49.843 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.57s
Aug 30 08:10:49.848 INFO kablam! su: No module specific data is present
Aug 30 08:10:50.193 INFO running `"docker" "rm" "-f" "28625e157aec4cd52aa0ffc237b5bc2cd2a52402e6fdc5d586aae1df3d95afde"`
Aug 30 08:10:50.276 INFO blam! 28625e157aec4cd52aa0ffc237b5bc2cd2a52402e6fdc5d586aae1df3d95afde