Dec 05 13:44:51.649 INFO checking float_fast_print-0.1.2 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 13:44:51.649 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 13:44:52.051 INFO [stdout] 7168bded590c111a6e291fd9bd3511863a4ffd9d2d6660cdaab5f3e36e03d77f
Dec 05 13:44:52.063 INFO running `"docker" "start" "-a" "7168bded590c111a6e291fd9bd3511863a4ffd9d2d6660cdaab5f3e36e03d77f"`
Dec 05 13:44:53.015 INFO [stderr] usermod: no changes
Dec 05 13:44:53.073 INFO [stderr]     Checking float_fast_print v0.1.2 (/source)
Dec 05 13:44:54.763 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:44:54.763 INFO [stderr]   --> tests/benchmarks.rs:17:9
Dec 05 13:44:54.763 INFO [stderr]    |
Dec 05 13:44:54.763 INFO [stderr] 17 |         write!(&mut buffer, "{:?}", x);
Dec 05 13:44:54.763 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:44:54.763 INFO [stderr]    |
Dec 05 13:44:54.763 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 13:44:54.763 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:44:54.763 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 05 13:44:54.763 INFO [stderr] 
Dec 05 13:44:54.763 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:44:54.763 INFO [stderr]   --> tests/benchmarks.rs:28:9
Dec 05 13:44:54.763 INFO [stderr]    |
Dec 05 13:44:54.763 INFO [stderr] 28 |         write!(&mut buffer, "{}", x);
Dec 05 13:44:54.763 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:44:54.763 INFO [stderr]    |
Dec 05 13:44:54.763 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:44:54.763 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 05 13:44:54.763 INFO [stderr] 
Dec 05 13:44:54.763 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:44:54.763 INFO [stderr]   --> tests/benchmarks.rs:39:9
Dec 05 13:44:54.763 INFO [stderr]    |
Dec 05 13:44:54.763 INFO [stderr] 39 |         write!(&mut buffer, "{:?}", x);
Dec 05 13:44:54.763 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:44:54.763 INFO [stderr]    |
Dec 05 13:44:54.763 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:44:54.763 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 05 13:44:54.763 INFO [stderr] 
Dec 05 13:44:54.763 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:44:54.763 INFO [stderr]   --> tests/benchmarks.rs:50:9
Dec 05 13:44:54.763 INFO [stderr]    |
Dec 05 13:44:54.763 INFO [stderr] 50 |         write!(&mut buffer, "{}", x);
Dec 05 13:44:54.763 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:44:54.763 INFO [stderr]    |
Dec 05 13:44:54.763 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:44:54.763 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 05 13:44:54.763 INFO [stderr] 
Dec 05 13:44:54.986 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
Dec 05 13:44:54.991 INFO [stderr] su: No module specific data is present
Dec 05 13:44:55.660 INFO running `"docker" "inspect" "7168bded590c111a6e291fd9bd3511863a4ffd9d2d6660cdaab5f3e36e03d77f"`
Dec 05 13:44:55.992 INFO running `"docker" "rm" "-f" "7168bded590c111a6e291fd9bd3511863a4ffd9d2d6660cdaab5f3e36e03d77f"`
Dec 05 13:44:56.384 INFO [stdout] 7168bded590c111a6e291fd9bd3511863a4ffd9d2d6660cdaab5f3e36e03d77f