Dec 18 16:36:14.628 INFO checking fahrenheit-4.5.2 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 16:36:14.628 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/fahrenheit/4.5.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 16:36:15.026 INFO [stdout] f912f8c1cb3bbe528466162561adb4434a52438d21a73a9af8302bfac0b6bb20
Dec 18 16:36:15.030 INFO running `"docker" "start" "-a" "f912f8c1cb3bbe528466162561adb4434a52438d21a73a9af8302bfac0b6bb20"`
Dec 18 16:36:16.336 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 18 16:36:16.420 INFO [stderr]     Checking fahrenheit v4.5.2 (/opt/crater/workdir)
Dec 18 16:36:17.813 INFO [stderr] warning: method is never used: `handle`
Dec 18 16:36:17.813 INFO [stderr]    --> src/lib.rs:117:5
Dec 18 16:36:17.813 INFO [stderr]     |
Dec 18 16:36:17.813 INFO [stderr] 117 |     pub fn handle(&self) -> Handle {
Dec 18 16:36:17.813 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 16:36:17.813 INFO [stderr]     |
Dec 18 16:36:17.813 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 18 16:36:17.813 INFO [stderr] 
Dec 18 16:36:17.850 INFO [stderr] warning: method is never used: `handle`
Dec 18 16:36:17.850 INFO [stderr]    --> src/lib.rs:117:5
Dec 18 16:36:17.850 INFO [stderr]     |
Dec 18 16:36:17.850 INFO [stderr] 117 |     pub fn handle(&self) -> Handle {
Dec 18 16:36:17.850 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 16:36:17.850 INFO [stderr]     |
Dec 18 16:36:17.850 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 18 16:36:17.850 INFO [stderr] 
Dec 18 16:36:18.777 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 16:36:18.777 INFO [stderr]   --> examples/server.rs:23:5
Dec 18 16:36:18.777 INFO [stderr]    |
Dec 18 16:36:18.777 INFO [stderr] 23 |     await!(stream.read_exact(&mut buf));
Dec 18 16:36:18.777 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 16:36:18.777 INFO [stderr]    |
Dec 18 16:36:18.777 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 16:36:18.777 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 16:36:18.777 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 16:36:18.777 INFO [stderr] 
Dec 18 16:36:18.791 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.47s
Dec 18 16:36:19.210 INFO running `"docker" "inspect" "f912f8c1cb3bbe528466162561adb4434a52438d21a73a9af8302bfac0b6bb20"`
Dec 18 16:36:19.364 INFO running `"docker" "rm" "-f" "f912f8c1cb3bbe528466162561adb4434a52438d21a73a9af8302bfac0b6bb20"`
Dec 18 16:36:19.556 INFO [stdout] f912f8c1cb3bbe528466162561adb4434a52438d21a73a9af8302bfac0b6bb20