Dec 19 22:08:09.569 INFO checking Ristarg/ronfmt against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 22:08:09.570 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/Ristarg/ronfmt:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 22:08:10.032 INFO [stdout] 7b70db17141beda99ef5cb3bdae9181d0a76ab6cba49d13fb9d5b12f4f4129ee
Dec 19 22:08:10.034 INFO running `"docker" "start" "-a" "7b70db17141beda99ef5cb3bdae9181d0a76ab6cba49d13fb9d5b12f4f4129ee"`
Dec 19 22:08:11.888 INFO [stderr] warning: unused manifest key: package.maintenance
Dec 19 22:08:11.939 INFO [stderr]    Compiling pest_generator v2.0.0
Dec 19 22:08:15.848 INFO [stderr]    Compiling pest_derive v2.0.1
Dec 19 22:08:17.406 INFO [stderr]     Checking ronfmt v0.1.0 (/opt/crater/workdir)
Dec 19 22:08:18.668 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 22:08:18.668 INFO [stderr]   --> src/ast/display.rs:10:13
Dec 19 22:08:18.668 INFO [stderr]    |
Dec 19 22:08:18.668 INFO [stderr] 10 |             writeln!(f, "#![enable({})]", extensions.iter().join(", "));
Dec 19 22:08:18.668 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:08:18.668 INFO [stderr]    |
Dec 19 22:08:18.668 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 22:08:18.668 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 22:08:18.668 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 19 22:08:18.668 INFO [stderr] 
Dec 19 22:08:18.670 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 22:08:18.670 INFO [stderr]   --> src/ast/display.rs:10:13
Dec 19 22:08:18.670 INFO [stderr]    |
Dec 19 22:08:18.670 INFO [stderr] 10 |             writeln!(f, "#![enable({})]", extensions.iter().join(", "));
Dec 19 22:08:18.670 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:08:18.670 INFO [stderr]    |
Dec 19 22:08:18.670 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 22:08:18.670 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 22:08:18.670 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 19 22:08:18.670 INFO [stderr] 
Dec 19 22:08:18.756 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.90s
Dec 19 22:08:19.478 INFO running `"docker" "inspect" "7b70db17141beda99ef5cb3bdae9181d0a76ab6cba49d13fb9d5b12f4f4129ee"`
Dec 19 22:08:19.775 INFO running `"docker" "rm" "-f" "7b70db17141beda99ef5cb3bdae9181d0a76ab6cba49d13fb9d5b12f4f4129ee"`
Dec 19 22:08:20.076 INFO [stdout] 7b70db17141beda99ef5cb3bdae9181d0a76ab6cba49d13fb9d5b12f4f4129ee