Nov 06 19:20:49.877 INFO checking kevlarr/rusty-calc against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 06 19:20:49.877 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-5/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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 06 19:20:50.344 INFO blam! 9bfaab5476990ff0c47c62bb278a68b183a6802ff3a085cfb40ee73636934fd2
Nov 06 19:20:50.349 INFO running `"docker" "start" "-a" "9bfaab5476990ff0c47c62bb278a68b183a6802ff3a085cfb40ee73636934fd2"`
Nov 06 19:20:51.872 INFO kablam! usermod: no changes
Nov 06 19:20:51.940 INFO kablam!     Checking rustycalc v0.1.0 (/source)
Nov 06 19:20:52.684 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 06 19:20:52.684 INFO kablam!    --> src/types/binary.rs:111:9
Nov 06 19:20:52.684 INFO kablam!     |
Nov 06 19:20:52.684 INFO kablam! 111 |         write!(f, "0b");
Nov 06 19:20:52.684 INFO kablam!     |         ^^^^^^^^^^^^^^^^
Nov 06 19:20:52.684 INFO kablam!     |
Nov 06 19:20:52.684 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 06 19:20:52.684 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 06 19:20:52.684 INFO kablam!     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 06 19:20:52.684 INFO kablam! 
Nov 06 19:20:52.684 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 06 19:20:52.684 INFO kablam!    --> src/types/binary.rs:115:17
Nov 06 19:20:52.684 INFO kablam!     |
Nov 06 19:20:52.684 INFO kablam! 115 |                 write!(f, "_");
Nov 06 19:20:52.684 INFO kablam!     |                 ^^^^^^^^^^^^^^^
Nov 06 19:20:52.684 INFO kablam!     |
Nov 06 19:20:52.684 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 06 19:20:52.684 INFO kablam!     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 06 19:20:52.684 INFO kablam! 
Nov 06 19:20:53.232 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 06 19:20:53.232 INFO kablam!    --> src/types/binary.rs:111:9
Nov 06 19:20:53.232 INFO kablam!     |
Nov 06 19:20:53.232 INFO kablam! 111 |         write!(f, "0b");
Nov 06 19:20:53.232 INFO kablam!     |         ^^^^^^^^^^^^^^^^
Nov 06 19:20:53.232 INFO kablam!     |
Nov 06 19:20:53.232 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 06 19:20:53.232 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 06 19:20:53.232 INFO kablam!     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 06 19:20:53.232 INFO kablam! 
Nov 06 19:20:53.232 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 06 19:20:53.232 INFO kablam!    --> src/types/binary.rs:115:17
Nov 06 19:20:53.232 INFO kablam!     |
Nov 06 19:20:53.232 INFO kablam! 115 |                 write!(f, "_");
Nov 06 19:20:53.232 INFO kablam!     |                 ^^^^^^^^^^^^^^^
Nov 06 19:20:53.232 INFO kablam!     |
Nov 06 19:20:53.232 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 06 19:20:53.232 INFO kablam!     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 06 19:20:53.232 INFO kablam! 
Nov 06 19:20:53.409 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
Nov 06 19:20:53.417 INFO kablam! su: No module specific data is present
Nov 06 19:20:54.139 INFO running `"docker" "rm" "-f" "9bfaab5476990ff0c47c62bb278a68b183a6802ff3a085cfb40ee73636934fd2"`
Nov 06 19:20:54.449 INFO blam! 9bfaab5476990ff0c47c62bb278a68b183a6802ff3a085cfb40ee73636934fd2