Nov 02 12:42:40.828 INFO checking jfredett/synacor against master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862 for pr-55517
Nov 02 12:42:40.828 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-1/master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55517/master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862:/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 +f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862-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 02 12:42:41.028 INFO blam! f571c11a10ca527746c5b70321273db59834faab20f55ab186bf259963bfb221
Nov 02 12:42:41.030 INFO running `"docker" "start" "-a" "f571c11a10ca527746c5b70321273db59834faab20f55ab186bf259963bfb221"`
Nov 02 12:42:41.824 INFO kablam! usermod: no changes
Nov 02 12:42:41.933 INFO kablam!     Checking synacor v0.1.0 (/source)
Nov 02 12:42:43.432 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 12:42:43.433 INFO kablam!    --> src/vm.rs:186:9
Nov 02 12:42:43.435 INFO kablam!     |
Nov 02 12:42:43.435 INFO kablam! 186 |         stdin.read_exact(&mut buf);
Nov 02 12:42:43.436 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 12:42:43.437 INFO kablam!     |
Nov 02 12:42:43.437 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 02 12:42:43.438 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 12:42:43.439 INFO kablam! 
Nov 02 12:42:47.477 INFO kablam! warning: unused arithmetic operation that must be used
Nov 02 12:42:47.477 INFO kablam!    --> src/u15.rs:163:30
Nov 02 12:42:47.477 INFO kablam!     |
Nov 02 12:42:47.477 INFO kablam! 163 |         fn sub_underflow() { u15(0) - u15(2); }
Nov 02 12:42:47.477 INFO kablam!     |                              ^^^^^^^^^^^^^^^
Nov 02 12:42:47.478 INFO kablam!     |
Nov 02 12:42:47.478 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 02 12:42:47.478 INFO kablam! 
Nov 02 12:42:47.478 INFO kablam! warning: unused arithmetic operation that must be used
Nov 02 12:42:47.478 INFO kablam!    --> src/u15.rs:167:28
Nov 02 12:42:47.478 INFO kablam!     |
Nov 02 12:42:47.479 INFO kablam! 167 |         fn div_by_zero() { u15(1) / u15(0); }
Nov 02 12:42:47.479 INFO kablam!     |                            ^^^^^^^^^^^^^^^
Nov 02 12:42:47.479 INFO kablam! 
Nov 02 12:42:47.484 INFO kablam! warning: unused arithmetic operation that must be used
Nov 02 12:42:47.485 INFO kablam!    --> src/u15.rs:223:26
Nov 02 12:42:47.485 INFO kablam!     |
Nov 02 12:42:47.485 INFO kablam! 223 |         fn sub_panic() { u15(16) - u15(17); }
Nov 02 12:42:47.485 INFO kablam!     |                          ^^^^^^^^^^^^^^^^^
Nov 02 12:42:47.485 INFO kablam! 
Nov 02 12:42:47.537 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 12:42:47.537 INFO kablam!    --> src/vm.rs:186:9
Nov 02 12:42:47.537 INFO kablam!     |
Nov 02 12:42:47.538 INFO kablam! 186 |         stdin.read_exact(&mut buf);
Nov 02 12:42:47.538 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 12:42:47.538 INFO kablam!     |
Nov 02 12:42:47.539 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 12:42:47.539 INFO kablam! 
Nov 02 12:42:47.628 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.76s
Nov 02 12:42:47.634 INFO kablam! su: No module specific data is present
Nov 02 12:42:48.015 INFO running `"docker" "rm" "-f" "f571c11a10ca527746c5b70321273db59834faab20f55ab186bf259963bfb221"`
Nov 02 12:42:48.216 INFO blam! f571c11a10ca527746c5b70321273db59834faab20f55ab186bf259963bfb221