Nov 04 05:06:23.569 INFO checking jfredett/synacor against master#2ad8c7b3502616aff142a4640cce911c6c2c5463 for pr-55655
Nov 04 05:06:23.571 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-3/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55655/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/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 +2ad8c7b3502616aff142a4640cce911c6c2c5463-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 04 05:06:23.895 INFO blam! ea273c3fb2db941fb66b5376fedc00a6a7ded58f3776fd89f14a82bfa7d6fef8
Nov 04 05:06:23.898 INFO running `"docker" "start" "-a" "ea273c3fb2db941fb66b5376fedc00a6a7ded58f3776fd89f14a82bfa7d6fef8"`
Nov 04 05:06:24.693 INFO kablam! usermod: no changes
Nov 04 05:06:24.815 INFO kablam!     Checking clap v2.29.0
Nov 04 05:06:32.113 INFO kablam!     Checking synacor v0.1.0 (/source)
Nov 04 05:06:32.931 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 04 05:06:32.932 INFO kablam!    --> src/vm.rs:186:9
Nov 04 05:06:32.932 INFO kablam!     |
Nov 04 05:06:32.932 INFO kablam! 186 |         stdin.read_exact(&mut buf);
Nov 04 05:06:32.932 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 05:06:32.933 INFO kablam!     |
Nov 04 05:06:32.933 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 04 05:06:32.933 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 04 05:06:32.933 INFO kablam! 
Nov 04 05:06:36.632 INFO kablam! warning: unused arithmetic operation that must be used
Nov 04 05:06:36.632 INFO kablam!    --> src/u15.rs:163:30
Nov 04 05:06:36.632 INFO kablam!     |
Nov 04 05:06:36.632 INFO kablam! 163 |         fn sub_underflow() { u15(0) - u15(2); }
Nov 04 05:06:36.632 INFO kablam!     |                              ^^^^^^^^^^^^^^^
Nov 04 05:06:36.632 INFO kablam!     |
Nov 04 05:06:36.633 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 04 05:06:36.633 INFO kablam! 
Nov 04 05:06:36.633 INFO kablam! warning: unused arithmetic operation that must be used
Nov 04 05:06:36.633 INFO kablam!    --> src/u15.rs:167:28
Nov 04 05:06:36.633 INFO kablam!     |
Nov 04 05:06:36.633 INFO kablam! 167 |         fn div_by_zero() { u15(1) / u15(0); }
Nov 04 05:06:36.633 INFO kablam!     |                            ^^^^^^^^^^^^^^^
Nov 04 05:06:36.633 INFO kablam! 
Nov 04 05:06:36.636 INFO kablam! warning: unused arithmetic operation that must be used
Nov 04 05:06:36.636 INFO kablam!    --> src/u15.rs:223:26
Nov 04 05:06:36.636 INFO kablam!     |
Nov 04 05:06:36.636 INFO kablam! 223 |         fn sub_panic() { u15(16) - u15(17); }
Nov 04 05:06:36.636 INFO kablam!     |                          ^^^^^^^^^^^^^^^^^
Nov 04 05:06:36.636 INFO kablam! 
Nov 04 05:06:36.690 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 04 05:06:36.690 INFO kablam!    --> src/vm.rs:186:9
Nov 04 05:06:36.690 INFO kablam!     |
Nov 04 05:06:36.690 INFO kablam! 186 |         stdin.read_exact(&mut buf);
Nov 04 05:06:36.690 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 05:06:36.690 INFO kablam!     |
Nov 04 05:06:36.690 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 04 05:06:36.690 INFO kablam! 
Nov 04 05:06:36.799 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 12.07s
Nov 04 05:06:36.811 INFO kablam! su: No module specific data is present
Nov 04 05:06:37.786 INFO running `"docker" "rm" "-f" "ea273c3fb2db941fb66b5376fedc00a6a7ded58f3776fd89f14a82bfa7d6fef8"`
Nov 04 05:06:38.091 INFO blam! ea273c3fb2db941fb66b5376fedc00a6a7ded58f3776fd89f14a82bfa7d6fef8