Nov 09 11:14:24.917 INFO checking jfredett/synacor against master#653da4fd006c97625247acd7e076d0782cdc149b for pr-55632
Nov 09 11:14:24.917 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-4/master#653da4fd006c97625247acd7e076d0782cdc149b:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55632/master#653da4fd006c97625247acd7e076d0782cdc149b:/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 +653da4fd006c97625247acd7e076d0782cdc149b-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"`
Nov 09 11:14:25.188 INFO blam! 66ec3516e9c436d2c1d5acaa3b60e86b97aa15e0488e2da22c6a5a1fbbafb665
Nov 09 11:14:25.195 INFO running `"docker" "start" "-a" "66ec3516e9c436d2c1d5acaa3b60e86b97aa15e0488e2da22c6a5a1fbbafb665"`
Nov 09 11:14:26.179 INFO kablam! usermod: no changes
Nov 09 11:14:26.231 INFO kablam!     Checking synacor v0.1.0 (/source)
Nov 09 11:14:27.067 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 09 11:14:27.067 INFO kablam!    --> src/vm.rs:186:9
Nov 09 11:14:27.067 INFO kablam!     |
Nov 09 11:14:27.067 INFO kablam! 186 |         stdin.read_exact(&mut buf);
Nov 09 11:14:27.067 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 11:14:27.067 INFO kablam!     |
Nov 09 11:14:27.067 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 09 11:14:27.067 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 09 11:14:27.067 INFO kablam! 
Nov 09 11:14:29.805 INFO kablam! warning: unused arithmetic operation that must be used
Nov 09 11:14:29.805 INFO kablam!    --> src/u15.rs:163:30
Nov 09 11:14:29.805 INFO kablam!     |
Nov 09 11:14:29.805 INFO kablam! 163 |         fn sub_underflow() { u15(0) - u15(2); }
Nov 09 11:14:29.805 INFO kablam!     |                              ^^^^^^^^^^^^^^^
Nov 09 11:14:29.805 INFO kablam!     |
Nov 09 11:14:29.805 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 09 11:14:29.805 INFO kablam! 
Nov 09 11:14:29.805 INFO kablam! warning: unused arithmetic operation that must be used
Nov 09 11:14:29.805 INFO kablam!    --> src/u15.rs:167:28
Nov 09 11:14:29.805 INFO kablam!     |
Nov 09 11:14:29.805 INFO kablam! 167 |         fn div_by_zero() { u15(1) / u15(0); }
Nov 09 11:14:29.805 INFO kablam!     |                            ^^^^^^^^^^^^^^^
Nov 09 11:14:29.805 INFO kablam! 
Nov 09 11:14:29.809 INFO kablam! warning: unused arithmetic operation that must be used
Nov 09 11:14:29.809 INFO kablam!    --> src/u15.rs:223:26
Nov 09 11:14:29.809 INFO kablam!     |
Nov 09 11:14:29.809 INFO kablam! 223 |         fn sub_panic() { u15(16) - u15(17); }
Nov 09 11:14:29.809 INFO kablam!     |                          ^^^^^^^^^^^^^^^^^
Nov 09 11:14:29.809 INFO kablam! 
Nov 09 11:14:29.871 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 09 11:14:29.871 INFO kablam!    --> src/vm.rs:186:9
Nov 09 11:14:29.871 INFO kablam!     |
Nov 09 11:14:29.871 INFO kablam! 186 |         stdin.read_exact(&mut buf);
Nov 09 11:14:29.871 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 11:14:29.872 INFO kablam!     |
Nov 09 11:14:29.872 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 09 11:14:29.872 INFO kablam! 
Nov 09 11:14:29.938 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.77s
Nov 09 11:14:29.948 INFO kablam! su: No module specific data is present
Nov 09 11:14:30.260 INFO running `"docker" "rm" "-f" "66ec3516e9c436d2c1d5acaa3b60e86b97aa15e0488e2da22c6a5a1fbbafb665"`
Nov 09 11:14:30.361 INFO blam! 66ec3516e9c436d2c1d5acaa3b60e86b97aa15e0488e2da22c6a5a1fbbafb665