Dec 04 15:51:24.940 INFO checking kevlarr/rusty-calc against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 15:51:24.940 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 15:51:25.507 INFO [stdout] 77012381172e5315dd22c1145da93c4536f9b2a6a3e411ff52217c3ff842ca69
Dec 04 15:51:25.511 INFO running `"docker" "start" "-a" "77012381172e5315dd22c1145da93c4536f9b2a6a3e411ff52217c3ff842ca69"`
Dec 04 15:51:26.770 INFO [stderr] usermod: no changes
Dec 04 15:51:26.815 INFO [stderr]     Checking rustycalc v0.1.0 (/source)
Dec 04 15:51:27.608 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:51:27.608 INFO [stderr]    --> src/types/binary.rs:111:9
Dec 04 15:51:27.608 INFO [stderr]     |
Dec 04 15:51:27.608 INFO [stderr] 111 |         write!(f, "0b");
Dec 04 15:51:27.608 INFO [stderr]     |         ^^^^^^^^^^^^^^^^
Dec 04 15:51:27.608 INFO [stderr]     |
Dec 04 15:51:27.608 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 15:51:27.608 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:51:27.608 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 04 15:51:27.608 INFO [stderr] 
Dec 04 15:51:27.608 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:51:27.608 INFO [stderr]    --> src/types/binary.rs:115:17
Dec 04 15:51:27.608 INFO [stderr]     |
Dec 04 15:51:27.608 INFO [stderr] 115 |                 write!(f, "_");
Dec 04 15:51:27.608 INFO [stderr]     |                 ^^^^^^^^^^^^^^^
Dec 04 15:51:27.608 INFO [stderr]     |
Dec 04 15:51:27.608 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:51:27.608 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 04 15:51:27.608 INFO [stderr] 
Dec 04 15:51:27.628 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:51:27.628 INFO [stderr]    --> src/types/binary.rs:111:9
Dec 04 15:51:27.628 INFO [stderr]     |
Dec 04 15:51:27.628 INFO [stderr] 111 |         write!(f, "0b");
Dec 04 15:51:27.628 INFO [stderr]     |         ^^^^^^^^^^^^^^^^
Dec 04 15:51:27.628 INFO [stderr]     |
Dec 04 15:51:27.628 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 15:51:27.628 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:51:27.628 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 04 15:51:27.628 INFO [stderr] 
Dec 04 15:51:27.628 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:51:27.628 INFO [stderr]    --> src/types/binary.rs:115:17
Dec 04 15:51:27.628 INFO [stderr]     |
Dec 04 15:51:27.628 INFO [stderr] 115 |                 write!(f, "_");
Dec 04 15:51:27.628 INFO [stderr]     |                 ^^^^^^^^^^^^^^^
Dec 04 15:51:27.628 INFO [stderr]     |
Dec 04 15:51:27.628 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:51:27.628 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 04 15:51:27.628 INFO [stderr] 
Dec 04 15:51:28.243 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
Dec 04 15:51:28.250 INFO [stderr] su: No module specific data is present
Dec 04 15:51:28.869 INFO running `"docker" "inspect" "77012381172e5315dd22c1145da93c4536f9b2a6a3e411ff52217c3ff842ca69"`
Dec 04 15:51:29.195 INFO running `"docker" "rm" "-f" "77012381172e5315dd22c1145da93c4536f9b2a6a3e411ff52217c3ff842ca69"`
Dec 04 15:51:29.539 INFO [stdout] 77012381172e5315dd22c1145da93c4536f9b2a6a3e411ff52217c3ff842ca69