Dec 12 11:44:18.641 INFO checking mach_object-0.1.13 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 11:44:18.641 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11:44:18.973 INFO [stdout] 9acd7f47607738e50970303569091a0ce34b0f90e73c7d9d49959f01e007c378
Dec 12 11:44:18.988 INFO running `"docker" "start" "-a" "9acd7f47607738e50970303569091a0ce34b0f90e73c7d9d49959f01e007c378"`
Dec 12 11:44:19.812 INFO [stderr] usermod: no changes
Dec 12 11:44:19.940 INFO [stderr]     Checking hexplay v0.2.1
Dec 12 11:44:19.940 INFO [stderr]     Checking mach_object v0.1.13 (/source)
Dec 12 11:44:23.468 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 11:44:23.468 INFO [stderr]    --> src/display.rs:461:17
Dec 12 11:44:23.468 INFO [stderr]     |
Dec 12 11:44:23.468 INFO [stderr] 461 |                 writeln!(f, "    tools");
Dec 12 11:44:23.468 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 11:44:23.468 INFO [stderr]     |
Dec 12 11:44:23.468 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 12 11:44:23.468 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 11:44:23.468 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 11:44:23.468 INFO [stderr] 
Dec 12 11:44:29.092 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 11:44:29.092 INFO [stderr]    --> src/display.rs:461:17
Dec 12 11:44:29.092 INFO [stderr]     |
Dec 12 11:44:29.092 INFO [stderr] 461 |                 writeln!(f, "    tools");
Dec 12 11:44:29.092 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 11:44:29.092 INFO [stderr]     |
Dec 12 11:44:29.092 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 12 11:44:29.092 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 11:44:29.092 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 11:44:29.092 INFO [stderr] 
Dec 12 11:44:29.932 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 11:44:29.932 INFO [stderr]  --> examples/otool.rs:9:1
Dec 12 11:44:29.932 INFO [stderr]   |
Dec 12 11:44:29.932 INFO [stderr] 9 | #[macro_use]
Dec 12 11:44:29.932 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 11:44:29.932 INFO [stderr]   |
Dec 12 11:44:29.932 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 11:44:29.932 INFO [stderr] 
Dec 12 11:44:30.256 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 11:44:30.256 INFO [stderr]  --> tests/integration_tests.rs:1:1
Dec 12 11:44:30.256 INFO [stderr]   |
Dec 12 11:44:30.256 INFO [stderr] 1 | #[macro_use]
Dec 12 11:44:30.256 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 11:44:30.256 INFO [stderr]   |
Dec 12 11:44:30.256 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 11:44:30.256 INFO [stderr] 
Dec 12 11:44:30.361 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.53s
Dec 12 11:44:30.369 INFO [stderr] su: No module specific data is present
Dec 12 11:44:30.674 INFO running `"docker" "inspect" "9acd7f47607738e50970303569091a0ce34b0f90e73c7d9d49959f01e007c378"`
Dec 12 11:44:30.853 INFO running `"docker" "rm" "-f" "9acd7f47607738e50970303569091a0ce34b0f90e73c7d9d49959f01e007c378"`
Dec 12 11:44:30.929 INFO [stdout] 9acd7f47607738e50970303569091a0ce34b0f90e73c7d9d49959f01e007c378