Dec 18 15:03:42.700 INFO checking iching-0.3.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 15:03:42.700 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/iching/0.3.1:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 15:03:42.904 INFO [stdout] c813aed8b26417a30670f411f3a59a3223cb0775455024a8baba89857bdf5cfa
Dec 18 15:03:42.907 INFO running `"docker" "start" "-a" "c813aed8b26417a30670f411f3a59a3223cb0775455024a8baba89857bdf5cfa"`
Dec 18 15:03:43.666 INFO [stderr]     Checking iching v0.3.1 (/opt/crater/workdir)
Dec 18 15:03:44.533 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.533 INFO [stderr]   --> src/hexagram_repository.rs:68:9
Dec 18 15:03:44.533 INFO [stderr]    |
Dec 18 15:03:44.533 INFO [stderr] 68 |         writeln!(f, "  {} (No. {})", self.get_symbol(), self.get_number());
Dec 18 15:03:44.533 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.533 INFO [stderr]    |
Dec 18 15:03:44.533 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 15:03:44.533 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.533 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 18 15:03:44.533 INFO [stderr] 
Dec 18 15:03:44.533 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.533 INFO [stderr]   --> src/hexagram_repository.rs:69:9
Dec 18 15:03:44.533 INFO [stderr]    |
Dec 18 15:03:44.533 INFO [stderr] 69 |         writeln!(f, "{} - {}", self.get_chinese_name(), self.get_localized_name());
Dec 18 15:03:44.533 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.533 INFO [stderr]    |
Dec 18 15:03:44.533 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.533 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 18 15:03:44.533 INFO [stderr] 
Dec 18 15:03:44.533 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.533 INFO [stderr]   --> src/hexagram_repository.rs:70:9
Dec 18 15:03:44.533 INFO [stderr]    |
Dec 18 15:03:44.533 INFO [stderr] 70 |         writeln!(f);
Dec 18 15:03:44.533 INFO [stderr]    |         ^^^^^^^^^^^^
Dec 18 15:03:44.533 INFO [stderr]    |
Dec 18 15:03:44.533 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.533 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 18 15:03:44.533 INFO [stderr] 
Dec 18 15:03:44.533 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.533 INFO [stderr]   --> src/hexagram_repository.rs:71:9
Dec 18 15:03:44.533 INFO [stderr]    |
Dec 18 15:03:44.533 INFO [stderr] 71 |         writeln!(f, "  Judgement:");
Dec 18 15:03:44.533 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.533 INFO [stderr]    |
Dec 18 15:03:44.533 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.533 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 18 15:03:44.533 INFO [stderr] 
Dec 18 15:03:44.533 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.533 INFO [stderr]   --> src/hexagram_repository.rs:72:9
Dec 18 15:03:44.533 INFO [stderr]    |
Dec 18 15:03:44.533 INFO [stderr] 72 |         writeln!(f, "{}", self.get_judgement());
Dec 18 15:03:44.533 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.533 INFO [stderr]    |
Dec 18 15:03:44.533 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.533 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 18 15:03:44.533 INFO [stderr] 
Dec 18 15:03:44.533 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.533 INFO [stderr]   --> src/hexagram_repository.rs:73:9
Dec 18 15:03:44.533 INFO [stderr]    |
Dec 18 15:03:44.534 INFO [stderr] 73 |         writeln!(f, "  Images:");
Dec 18 15:03:44.534 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.534 INFO [stderr]    |
Dec 18 15:03:44.534 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.534 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 18 15:03:44.534 INFO [stderr] 
Dec 18 15:03:44.534 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.534 INFO [stderr]   --> src/hexagram_repository.rs:74:9
Dec 18 15:03:44.534 INFO [stderr]    |
Dec 18 15:03:44.534 INFO [stderr] 74 |         writeln!(f, "{}", self.get_images());
Dec 18 15:03:44.534 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.534 INFO [stderr]    |
Dec 18 15:03:44.534 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.534 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 18 15:03:44.534 INFO [stderr] 
Dec 18 15:03:44.534 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.534 INFO [stderr]    --> src/trigram.rs:234:9
Dec 18 15:03:44.534 INFO [stderr]     |
Dec 18 15:03:44.534 INFO [stderr] 234 |         writeln!(f, "{} (No. {})", self.symbol(), self.number());
Dec 18 15:03:44.534 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.534 INFO [stderr]     |
Dec 18 15:03:44.534 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.534 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 18 15:03:44.534 INFO [stderr] 
Dec 18 15:03:44.534 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.534 INFO [stderr]    --> src/trigram.rs:235:9
Dec 18 15:03:44.534 INFO [stderr]     |
Dec 18 15:03:44.534 INFO [stderr] 235 |         writeln!(f, "{} - {}", self.romanized(), self.english_translation());
Dec 18 15:03:44.534 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.534 INFO [stderr]     |
Dec 18 15:03:44.534 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.534 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 18 15:03:44.534 INFO [stderr] 
Dec 18 15:03:44.534 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.534 INFO [stderr]    --> src/trigram.rs:236:9
Dec 18 15:03:44.534 INFO [stderr]     |
Dec 18 15:03:44.534 INFO [stderr] 236 |         writeln!(f);
Dec 18 15:03:44.534 INFO [stderr]     |         ^^^^^^^^^^^^
Dec 18 15:03:44.534 INFO [stderr]     |
Dec 18 15:03:44.534 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.534 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 18 15:03:44.534 INFO [stderr] 
Dec 18 15:03:44.534 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.534 INFO [stderr]    --> src/trigram.rs:237:9
Dec 18 15:03:44.534 INFO [stderr]     |
Dec 18 15:03:44.534 INFO [stderr] 237 |         writeln!(f, "Attribute: {}", self.attribute());
Dec 18 15:03:44.534 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.534 INFO [stderr]     |
Dec 18 15:03:44.534 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.534 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 18 15:03:44.534 INFO [stderr] 
Dec 18 15:03:44.534 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.534 INFO [stderr]    --> src/trigram.rs:238:9
Dec 18 15:03:44.534 INFO [stderr]     |
Dec 18 15:03:44.534 INFO [stderr] 238 |         writeln!(f, "Image in nature: {}", self.image());
Dec 18 15:03:44.534 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.534 INFO [stderr]     |
Dec 18 15:03:44.534 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.534 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 18 15:03:44.534 INFO [stderr] 
Dec 18 15:03:44.534 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.534 INFO [stderr]    --> src/trigram.rs:239:9
Dec 18 15:03:44.534 INFO [stderr]     |
Dec 18 15:03:44.534 INFO [stderr] 239 |         writeln!(f, "Family Relationship: {}", self.family_relationship());
Dec 18 15:03:44.534 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.534 INFO [stderr]     |
Dec 18 15:03:44.534 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.534 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 18 15:03:44.534 INFO [stderr] 
Dec 18 15:03:44.596 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.596 INFO [stderr]   --> src/hexagram_repository.rs:68:9
Dec 18 15:03:44.596 INFO [stderr]    |
Dec 18 15:03:44.596 INFO [stderr] 68 |         writeln!(f, "  {} (No. {})", self.get_symbol(), self.get_number());
Dec 18 15:03:44.596 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.596 INFO [stderr]    |
Dec 18 15:03:44.596 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 15:03:44.596 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.596 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 18 15:03:44.596 INFO [stderr] 
Dec 18 15:03:44.596 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.596 INFO [stderr]   --> src/hexagram_repository.rs:69:9
Dec 18 15:03:44.596 INFO [stderr]    |
Dec 18 15:03:44.596 INFO [stderr] 69 |         writeln!(f, "{} - {}", self.get_chinese_name(), self.get_localized_name());
Dec 18 15:03:44.596 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.596 INFO [stderr]    |
Dec 18 15:03:44.596 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.596 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 18 15:03:44.596 INFO [stderr] 
Dec 18 15:03:44.596 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.596 INFO [stderr]   --> src/hexagram_repository.rs:70:9
Dec 18 15:03:44.596 INFO [stderr]    |
Dec 18 15:03:44.596 INFO [stderr] 70 |         writeln!(f);
Dec 18 15:03:44.596 INFO [stderr]    |         ^^^^^^^^^^^^
Dec 18 15:03:44.596 INFO [stderr]    |
Dec 18 15:03:44.596 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.596 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 18 15:03:44.596 INFO [stderr] 
Dec 18 15:03:44.596 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.596 INFO [stderr]   --> src/hexagram_repository.rs:71:9
Dec 18 15:03:44.596 INFO [stderr]    |
Dec 18 15:03:44.596 INFO [stderr] 71 |         writeln!(f, "  Judgement:");
Dec 18 15:03:44.596 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.596 INFO [stderr]    |
Dec 18 15:03:44.596 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.596 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 18 15:03:44.596 INFO [stderr] 
Dec 18 15:03:44.596 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.596 INFO [stderr]   --> src/hexagram_repository.rs:72:9
Dec 18 15:03:44.596 INFO [stderr]    |
Dec 18 15:03:44.596 INFO [stderr] 72 |         writeln!(f, "{}", self.get_judgement());
Dec 18 15:03:44.597 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.597 INFO [stderr]    |
Dec 18 15:03:44.597 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.597 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 18 15:03:44.597 INFO [stderr] 
Dec 18 15:03:44.597 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.597 INFO [stderr]   --> src/hexagram_repository.rs:73:9
Dec 18 15:03:44.597 INFO [stderr]    |
Dec 18 15:03:44.597 INFO [stderr] 73 |         writeln!(f, "  Images:");
Dec 18 15:03:44.597 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.597 INFO [stderr]    |
Dec 18 15:03:44.597 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.597 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 18 15:03:44.597 INFO [stderr] 
Dec 18 15:03:44.597 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.597 INFO [stderr]   --> src/hexagram_repository.rs:74:9
Dec 18 15:03:44.597 INFO [stderr]    |
Dec 18 15:03:44.597 INFO [stderr] 74 |         writeln!(f, "{}", self.get_images());
Dec 18 15:03:44.597 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.597 INFO [stderr]    |
Dec 18 15:03:44.597 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.597 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 18 15:03:44.597 INFO [stderr] 
Dec 18 15:03:44.597 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.597 INFO [stderr]    --> src/trigram.rs:234:9
Dec 18 15:03:44.597 INFO [stderr]     |
Dec 18 15:03:44.597 INFO [stderr] 234 |         writeln!(f, "{} (No. {})", self.symbol(), self.number());
Dec 18 15:03:44.597 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.597 INFO [stderr]     |
Dec 18 15:03:44.597 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.597 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 18 15:03:44.597 INFO [stderr] 
Dec 18 15:03:44.597 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.597 INFO [stderr]    --> src/trigram.rs:235:9
Dec 18 15:03:44.597 INFO [stderr]     |
Dec 18 15:03:44.597 INFO [stderr] 235 |         writeln!(f, "{} - {}", self.romanized(), self.english_translation());
Dec 18 15:03:44.597 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.597 INFO [stderr]     |
Dec 18 15:03:44.597 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.597 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 18 15:03:44.597 INFO [stderr] 
Dec 18 15:03:44.597 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.597 INFO [stderr]    --> src/trigram.rs:236:9
Dec 18 15:03:44.597 INFO [stderr]     |
Dec 18 15:03:44.597 INFO [stderr] 236 |         writeln!(f);
Dec 18 15:03:44.597 INFO [stderr]     |         ^^^^^^^^^^^^
Dec 18 15:03:44.597 INFO [stderr]     |
Dec 18 15:03:44.597 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.597 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 18 15:03:44.597 INFO [stderr] 
Dec 18 15:03:44.597 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.597 INFO [stderr]    --> src/trigram.rs:237:9
Dec 18 15:03:44.597 INFO [stderr]     |
Dec 18 15:03:44.597 INFO [stderr] 237 |         writeln!(f, "Attribute: {}", self.attribute());
Dec 18 15:03:44.597 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.597 INFO [stderr]     |
Dec 18 15:03:44.597 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.597 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 18 15:03:44.597 INFO [stderr] 
Dec 18 15:03:44.597 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.597 INFO [stderr]    --> src/trigram.rs:238:9
Dec 18 15:03:44.597 INFO [stderr]     |
Dec 18 15:03:44.597 INFO [stderr] 238 |         writeln!(f, "Image in nature: {}", self.image());
Dec 18 15:03:44.597 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.597 INFO [stderr]     |
Dec 18 15:03:44.597 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.597 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 18 15:03:44.597 INFO [stderr] 
Dec 18 15:03:44.597 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:03:44.597 INFO [stderr]    --> src/trigram.rs:239:9
Dec 18 15:03:44.597 INFO [stderr]     |
Dec 18 15:03:44.597 INFO [stderr] 239 |         writeln!(f, "Family Relationship: {}", self.family_relationship());
Dec 18 15:03:44.597 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:03:44.597 INFO [stderr]     |
Dec 18 15:03:44.597 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:03:44.597 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 18 15:03:44.597 INFO [stderr] 
Dec 18 15:03:45.935 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.37s
Dec 18 15:03:46.166 INFO running `"docker" "inspect" "c813aed8b26417a30670f411f3a59a3223cb0775455024a8baba89857bdf5cfa"`
Dec 18 15:03:46.271 INFO running `"docker" "rm" "-f" "c813aed8b26417a30670f411f3a59a3223cb0775455024a8baba89857bdf5cfa"`
Dec 18 15:03:46.463 INFO [stdout] c813aed8b26417a30670f411f3a59a3223cb0775455024a8baba89857bdf5cfa