Dec 12 15:12:54.933 INFO checking fahrenheit-4.5.2 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 15:12:54.933 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 15:12:55.428 INFO [stdout] 0f692ed4f2bb3920fb69cff0512ac0fa74fb5323881564c5b35ecb6c08c15d30
Dec 12 15:12:55.436 INFO running `"docker" "start" "-a" "0f692ed4f2bb3920fb69cff0512ac0fa74fb5323881564c5b35ecb6c08c15d30"`
Dec 12 15:12:56.528 INFO [stderr] usermod: no changes
Dec 12 15:12:56.576 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 12 15:12:56.652 INFO [stderr]     Checking futures-channel-preview v0.3.0-alpha.10
Dec 12 15:12:56.668 INFO [stderr]     Checking futures-io-preview v0.3.0-alpha.10
Dec 12 15:12:57.832 INFO [stderr]     Checking futures-sink-preview v0.3.0-alpha.10
Dec 12 15:12:58.604 INFO [stderr]     Checking futures-util-preview v0.3.0-alpha.10
Dec 12 15:13:02.580 INFO [stderr]     Checking futures-executor-preview v0.3.0-alpha.10
Dec 12 15:13:04.124 INFO [stderr]     Checking futures-preview v0.3.0-alpha.10
Dec 12 15:13:05.319 INFO [stderr]     Checking fahrenheit v4.5.2 (/source)
Dec 12 15:13:09.216 INFO [stderr] warning: method is never used: `handle`
Dec 12 15:13:09.216 INFO [stderr]    --> src/lib.rs:117:5
Dec 12 15:13:09.216 INFO [stderr]     |
Dec 12 15:13:09.216 INFO [stderr] 117 |     pub fn handle(&self) -> Handle {
Dec 12 15:13:09.216 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 15:13:09.216 INFO [stderr]     |
Dec 12 15:13:09.216 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 15:13:09.216 INFO [stderr] 
Dec 12 15:13:09.280 INFO [stderr] warning: method is never used: `handle`
Dec 12 15:13:09.280 INFO [stderr]    --> src/lib.rs:117:5
Dec 12 15:13:09.280 INFO [stderr]     |
Dec 12 15:13:09.280 INFO [stderr] 117 |     pub fn handle(&self) -> Handle {
Dec 12 15:13:09.280 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 15:13:09.280 INFO [stderr]     |
Dec 12 15:13:09.280 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 15:13:09.280 INFO [stderr] 
Dec 12 15:13:13.583 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 15:13:13.583 INFO [stderr]   --> examples/server.rs:23:5
Dec 12 15:13:13.583 INFO [stderr]    |
Dec 12 15:13:13.583 INFO [stderr] 23 |     await!(stream.read_exact(&mut buf));
Dec 12 15:13:13.583 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 15:13:13.583 INFO [stderr]    |
Dec 12 15:13:13.583 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 15:13:13.583 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 15:13:13.583 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 12 15:13:13.583 INFO [stderr] 
Dec 12 15:13:14.293 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.74s
Dec 12 15:13:14.309 INFO [stderr] su: No module specific data is present
Dec 12 15:13:15.233 INFO running `"docker" "inspect" "0f692ed4f2bb3920fb69cff0512ac0fa74fb5323881564c5b35ecb6c08c15d30"`
Dec 12 15:13:15.596 INFO running `"docker" "rm" "-f" "0f692ed4f2bb3920fb69cff0512ac0fa74fb5323881564c5b35ecb6c08c15d30"`
Dec 12 15:13:15.996 INFO [stdout] 0f692ed4f2bb3920fb69cff0512ac0fa74fb5323881564c5b35ecb6c08c15d30