Nov 09 11:14:17.597 INFO checking jfredett/synacor against try#dc13be39fae8d4c607889b27de374b52586485a3 for pr-55632
Nov 09 11:14:17.599 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-6/try#dc13be39fae8d4c607889b27de374b52586485a3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55632/try#dc13be39fae8d4c607889b27de374b52586485a3:/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 +dc13be39fae8d4c607889b27de374b52586485a3-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 11:14:17.935 INFO blam! ba1aace17718301fcd1979702dbf3ad5bab121398305384f61f3b8142612a77f
Nov 09 11:14:17.947 INFO running `"docker" "start" "-a" "ba1aace17718301fcd1979702dbf3ad5bab121398305384f61f3b8142612a77f"`
Nov 09 11:14:19.418 INFO kablam! usermod: no changes
Nov 09 11:14:19.515 INFO kablam!     Checking synacor v0.1.0 (/source)
Nov 09 11:14:20.977 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 09 11:14:20.978 INFO kablam!    --> src/vm.rs:186:9
Nov 09 11:14:20.978 INFO kablam!     |
Nov 09 11:14:20.979 INFO kablam! 186 |         stdin.read_exact(&mut buf);
Nov 09 11:14:20.980 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 11:14:20.980 INFO kablam!     |
Nov 09 11:14:20.981 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 09 11:14:20.982 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 09 11:14:20.982 INFO kablam! 
Nov 09 11:14:25.039 INFO kablam! warning: unused arithmetic operation that must be used
Nov 09 11:14:25.039 INFO kablam!    --> src/u15.rs:163:30
Nov 09 11:14:25.039 INFO kablam!     |
Nov 09 11:14:25.039 INFO kablam! 163 |         fn sub_underflow() { u15(0) - u15(2); }
Nov 09 11:14:25.039 INFO kablam!     |                              ^^^^^^^^^^^^^^^
Nov 09 11:14:25.039 INFO kablam!     |
Nov 09 11:14:25.039 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 09 11:14:25.039 INFO kablam! 
Nov 09 11:14:25.039 INFO kablam! warning: unused arithmetic operation that must be used
Nov 09 11:14:25.039 INFO kablam!    --> src/u15.rs:167:28
Nov 09 11:14:25.039 INFO kablam!     |
Nov 09 11:14:25.039 INFO kablam! 167 |         fn div_by_zero() { u15(1) / u15(0); }
Nov 09 11:14:25.039 INFO kablam!     |                            ^^^^^^^^^^^^^^^
Nov 09 11:14:25.039 INFO kablam! 
Nov 09 11:14:25.039 INFO kablam! warning: unused arithmetic operation that must be used
Nov 09 11:14:25.039 INFO kablam!    --> src/u15.rs:223:26
Nov 09 11:14:25.039 INFO kablam!     |
Nov 09 11:14:25.039 INFO kablam! 223 |         fn sub_panic() { u15(16) - u15(17); }
Nov 09 11:14:25.039 INFO kablam!     |                          ^^^^^^^^^^^^^^^^^
Nov 09 11:14:25.039 INFO kablam! 
Nov 09 11:14:25.103 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 09 11:14:25.103 INFO kablam!    --> src/vm.rs:186:9
Nov 09 11:14:25.103 INFO kablam!     |
Nov 09 11:14:25.103 INFO kablam! 186 |         stdin.read_exact(&mut buf);
Nov 09 11:14:25.103 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 11:14:25.103 INFO kablam!     |
Nov 09 11:14:25.103 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 09 11:14:25.103 INFO kablam! 
Nov 09 11:14:25.195 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.75s
Nov 09 11:14:25.203 INFO kablam! su: No module specific data is present
Nov 09 11:14:25.628 INFO running `"docker" "rm" "-f" "ba1aace17718301fcd1979702dbf3ad5bab121398305384f61f3b8142612a77f"`
Nov 09 11:14:25.842 INFO blam! ba1aace17718301fcd1979702dbf3ad5bab121398305384f61f3b8142612a77f