Nov 09 07:22:59.350 INFO checking peter-bertok/float_fast_print against try#dc13be39fae8d4c607889b27de374b52586485a3 for pr-55632
Nov 09 07:22:59.350 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-6/try#dc13be39fae8d4c607889b27de374b52586485a3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55632/try#dc13be39fae8d4c607889b27de374b52586485a3:/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 +dc13be39fae8d4c607889b27de374b52586485a3-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 09 07:22:59.851 INFO blam! 54d6a339cd724ac49600dd3e7ac41baec5f44fa1f88236821f47bfd732a29c9c
Nov 09 07:22:59.853 INFO running `"docker" "start" "-a" "54d6a339cd724ac49600dd3e7ac41baec5f44fa1f88236821f47bfd732a29c9c"`
Nov 09 07:23:02.271 INFO kablam! usermod: no changes
Nov 09 07:23:02.378 INFO kablam!     Checking float_fast_print v0.1.2 (/source)
Nov 09 07:23:03.779 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 09 07:23:03.779 INFO kablam!   --> tests/benchmarks.rs:17:9
Nov 09 07:23:03.780 INFO kablam!    |
Nov 09 07:23:03.780 INFO kablam! 17 |         write!(&mut buffer, "{:?}", x);
Nov 09 07:23:03.780 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 07:23:03.780 INFO kablam!    |
Nov 09 07:23:03.781 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 09 07:23:03.781 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 09 07:23:03.781 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 09 07:23:03.782 INFO kablam! 
Nov 09 07:23:03.782 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 09 07:23:03.782 INFO kablam!   --> tests/benchmarks.rs:28:9
Nov 09 07:23:03.782 INFO kablam!    |
Nov 09 07:23:03.783 INFO kablam! 28 |         write!(&mut buffer, "{}", x);
Nov 09 07:23:03.783 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 07:23:03.783 INFO kablam!    |
Nov 09 07:23:03.784 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 09 07:23:03.784 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 09 07:23:03.784 INFO kablam! 
Nov 09 07:23:03.784 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 09 07:23:03.785 INFO kablam!   --> tests/benchmarks.rs:39:9
Nov 09 07:23:03.785 INFO kablam!    |
Nov 09 07:23:03.785 INFO kablam! 39 |         write!(&mut buffer, "{:?}", x);
Nov 09 07:23:03.785 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 07:23:03.786 INFO kablam!    |
Nov 09 07:23:03.786 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 09 07:23:03.786 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 09 07:23:03.786 INFO kablam! 
Nov 09 07:23:03.787 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 09 07:23:03.787 INFO kablam!   --> tests/benchmarks.rs:50:9
Nov 09 07:23:03.787 INFO kablam!    |
Nov 09 07:23:03.788 INFO kablam! 50 |         write!(&mut buffer, "{}", x);
Nov 09 07:23:03.788 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 07:23:03.788 INFO kablam!    |
Nov 09 07:23:03.788 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 09 07:23:03.788 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 09 07:23:03.789 INFO kablam! 
Nov 09 07:23:03.966 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.67s
Nov 09 07:23:03.980 INFO kablam! su: No module specific data is present
Nov 09 07:23:04.875 INFO running `"docker" "rm" "-f" "54d6a339cd724ac49600dd3e7ac41baec5f44fa1f88236821f47bfd732a29c9c"`
Nov 09 07:23:05.187 INFO blam! 54d6a339cd724ac49600dd3e7ac41baec5f44fa1f88236821f47bfd732a29c9c