Nov 30 22:54:34.177 INFO checking float_fast_print-0.1.2 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 22:54:34.177 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 22:54:34.736 INFO [stdout] 832044eb52f1c5c0d19ce976dd621cf7525e6035d18cca025239f115d3e065ae
Nov 30 22:54:34.788 INFO running `"docker" "start" "-a" "832044eb52f1c5c0d19ce976dd621cf7525e6035d18cca025239f115d3e065ae"`
Nov 30 22:54:35.632 INFO [stderr] usermod: no changes
Nov 30 22:54:35.700 INFO [stderr]     Checking float_fast_print v0.1.2 (/source)
Nov 30 22:54:37.848 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 22:54:37.848 INFO [stderr]   --> tests/benchmarks.rs:17:9
Nov 30 22:54:37.848 INFO [stderr]    |
Nov 30 22:54:37.848 INFO [stderr] 17 |         write!(&mut buffer, "{:?}", x);
Nov 30 22:54:37.848 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 22:54:37.848 INFO [stderr]    |
Nov 30 22:54:37.848 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 22:54:37.848 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 22:54:37.848 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)
Nov 30 22:54:37.848 INFO [stderr] 
Nov 30 22:54:37.848 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 22:54:37.848 INFO [stderr]   --> tests/benchmarks.rs:28:9
Nov 30 22:54:37.848 INFO [stderr]    |
Nov 30 22:54:37.848 INFO [stderr] 28 |         write!(&mut buffer, "{}", x);
Nov 30 22:54:37.848 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 22:54:37.848 INFO [stderr]    |
Nov 30 22:54:37.849 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 22:54:37.849 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)
Nov 30 22:54:37.849 INFO [stderr] 
Nov 30 22:54:37.849 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 22:54:37.849 INFO [stderr]   --> tests/benchmarks.rs:39:9
Nov 30 22:54:37.849 INFO [stderr]    |
Nov 30 22:54:37.849 INFO [stderr] 39 |         write!(&mut buffer, "{:?}", x);
Nov 30 22:54:37.849 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 22:54:37.849 INFO [stderr]    |
Nov 30 22:54:37.849 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 22:54:37.849 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)
Nov 30 22:54:37.849 INFO [stderr] 
Nov 30 22:54:37.849 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 22:54:37.849 INFO [stderr]   --> tests/benchmarks.rs:50:9
Nov 30 22:54:37.849 INFO [stderr]    |
Nov 30 22:54:37.849 INFO [stderr] 50 |         write!(&mut buffer, "{}", x);
Nov 30 22:54:37.849 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 22:54:37.849 INFO [stderr]    |
Nov 30 22:54:37.849 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 22:54:37.849 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)
Nov 30 22:54:37.849 INFO [stderr] 
Nov 30 22:54:37.968 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.31s
Nov 30 22:54:37.968 INFO [stderr] su: No module specific data is present
Nov 30 22:54:38.574 INFO running `"docker" "inspect" "832044eb52f1c5c0d19ce976dd621cf7525e6035d18cca025239f115d3e065ae"`
Nov 30 22:54:38.937 INFO running `"docker" "rm" "-f" "832044eb52f1c5c0d19ce976dd621cf7525e6035d18cca025239f115d3e065ae"`
Nov 30 22:54:39.316 INFO [stdout] 832044eb52f1c5c0d19ce976dd621cf7525e6035d18cca025239f115d3e065ae