Dec 18 07:09:08.858 INFO checking JacekPrzemieniecki/earley_parser against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 07:09:08.858 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/JacekPrzemieniecki/earley_parser:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 07:09:09.116 INFO [stdout] 5f2462ef59e0df9151acf7d570661dea64f833fdd8386992ff5c9bc12821029b
Dec 18 07:09:09.122 INFO running `"docker" "start" "-a" "5f2462ef59e0df9151acf7d570661dea64f833fdd8386992ff5c9bc12821029b"`
Dec 18 07:09:09.717 INFO [stderr]     Checking earley_parser v0.1.0 (/opt/crater/workdir)
Dec 18 07:09:09.912 INFO [stderr] warning: unused import: `grammar::build_grammar`
Dec 18 07:09:09.912 INFO [stderr]  --> src/main.rs:8:5
Dec 18 07:09:09.912 INFO [stderr]   |
Dec 18 07:09:09.912 INFO [stderr] 8 | use grammar::build_grammar;
Dec 18 07:09:09.912 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:09:09.912 INFO [stderr]   |
Dec 18 07:09:09.912 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 07:09:09.912 INFO [stderr] 
Dec 18 07:09:09.918 INFO [stderr] warning: unused import: `grammar::build_grammar`
Dec 18 07:09:09.918 INFO [stderr]  --> src/main.rs:8:5
Dec 18 07:09:09.918 INFO [stderr]   |
Dec 18 07:09:09.918 INFO [stderr] 8 | use grammar::build_grammar;
Dec 18 07:09:09.918 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:09:09.918 INFO [stderr]   |
Dec 18 07:09:09.918 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 07:09:09.918 INFO [stderr] 
Dec 18 07:09:10.136 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:09:10.136 INFO [stderr]    --> src/parser.rs:227:9
Dec 18 07:09:10.136 INFO [stderr]     |
Dec 18 07:09:10.136 INFO [stderr] 227 |         write!(s, "{}", indent);
Dec 18 07:09:10.136 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:09:10.136 INFO [stderr]     |
Dec 18 07:09:10.136 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 07:09:10.136 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:09:10.136 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 07:09:10.136 INFO [stderr] 
Dec 18 07:09:10.136 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:09:10.136 INFO [stderr]    --> src/parser.rs:229:23
Dec 18 07:09:10.136 INFO [stderr]     |
Dec 18 07:09:10.136 INFO [stderr] 229 |             true => { write!(s, "\\-"); indent.to_string() + "  "},
Dec 18 07:09:10.136 INFO [stderr]     |                       ^^^^^^^^^^^^^^^^^
Dec 18 07:09:10.136 INFO [stderr]     |
Dec 18 07:09:10.136 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:09:10.136 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 07:09:10.136 INFO [stderr] 
Dec 18 07:09:10.136 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:09:10.136 INFO [stderr]    --> src/parser.rs:230:24
Dec 18 07:09:10.136 INFO [stderr]     |
Dec 18 07:09:10.136 INFO [stderr] 230 |             false => { write!(s, "|-"); indent.to_string() + "| "}
Dec 18 07:09:10.136 INFO [stderr]     |                        ^^^^^^^^^^^^^^^^
Dec 18 07:09:10.136 INFO [stderr]     |
Dec 18 07:09:10.136 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:09:10.136 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 07:09:10.136 INFO [stderr] 
Dec 18 07:09:10.136 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:09:10.136 INFO [stderr]    --> src/parser.rs:232:9
Dec 18 07:09:10.136 INFO [stderr]     |
Dec 18 07:09:10.136 INFO [stderr] 232 |         write!(s, "{}\n", &gram.symbols[self.value].name);
Dec 18 07:09:10.136 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:09:10.136 INFO [stderr]     |
Dec 18 07:09:10.136 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:09:10.136 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 07:09:10.136 INFO [stderr] 
Dec 18 07:09:10.136 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:09:10.136 INFO [stderr]    --> src/parser.rs:234:13
Dec 18 07:09:10.136 INFO [stderr]     |
Dec 18 07:09:10.136 INFO [stderr] 234 |             write!(s, "{}", node.to_string(&gram, &new_indent, i == self.children.len() -1));
Dec 18 07:09:10.136 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:09:10.136 INFO [stderr]     |
Dec 18 07:09:10.136 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:09:10.136 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 07:09:10.136 INFO [stderr] 
Dec 18 07:09:10.175 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:09:10.175 INFO [stderr]    --> src/parser.rs:227:9
Dec 18 07:09:10.175 INFO [stderr]     |
Dec 18 07:09:10.175 INFO [stderr] 227 |         write!(s, "{}", indent);
Dec 18 07:09:10.175 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:09:10.175 INFO [stderr]     |
Dec 18 07:09:10.175 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 07:09:10.175 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:09:10.175 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 07:09:10.175 INFO [stderr] 
Dec 18 07:09:10.175 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:09:10.175 INFO [stderr]    --> src/parser.rs:229:23
Dec 18 07:09:10.175 INFO [stderr]     |
Dec 18 07:09:10.175 INFO [stderr] 229 |             true => { write!(s, "\\-"); indent.to_string() + "  "},
Dec 18 07:09:10.175 INFO [stderr]     |                       ^^^^^^^^^^^^^^^^^
Dec 18 07:09:10.175 INFO [stderr]     |
Dec 18 07:09:10.175 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:09:10.175 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 07:09:10.175 INFO [stderr] 
Dec 18 07:09:10.175 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:09:10.175 INFO [stderr]    --> src/parser.rs:230:24
Dec 18 07:09:10.175 INFO [stderr]     |
Dec 18 07:09:10.175 INFO [stderr] 230 |             false => { write!(s, "|-"); indent.to_string() + "| "}
Dec 18 07:09:10.175 INFO [stderr]     |                        ^^^^^^^^^^^^^^^^
Dec 18 07:09:10.175 INFO [stderr]     |
Dec 18 07:09:10.175 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:09:10.175 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 07:09:10.175 INFO [stderr] 
Dec 18 07:09:10.175 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:09:10.175 INFO [stderr]    --> src/parser.rs:232:9
Dec 18 07:09:10.175 INFO [stderr]     |
Dec 18 07:09:10.175 INFO [stderr] 232 |         write!(s, "{}\n", &gram.symbols[self.value].name);
Dec 18 07:09:10.175 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:09:10.175 INFO [stderr]     |
Dec 18 07:09:10.175 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:09:10.175 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 07:09:10.175 INFO [stderr] 
Dec 18 07:09:10.175 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:09:10.175 INFO [stderr]    --> src/parser.rs:234:13
Dec 18 07:09:10.175 INFO [stderr]     |
Dec 18 07:09:10.175 INFO [stderr] 234 |             write!(s, "{}", node.to_string(&gram, &new_indent, i == self.children.len() -1));
Dec 18 07:09:10.175 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:09:10.175 INFO [stderr]     |
Dec 18 07:09:10.175 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:09:10.175 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 07:09:10.175 INFO [stderr] 
Dec 18 07:09:10.196 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
Dec 18 07:09:10.533 INFO running `"docker" "inspect" "5f2462ef59e0df9151acf7d570661dea64f833fdd8386992ff5c9bc12821029b"`
Dec 18 07:09:10.615 INFO running `"docker" "rm" "-f" "5f2462ef59e0df9151acf7d570661dea64f833fdd8386992ff5c9bc12821029b"`
Dec 18 07:09:10.701 INFO [stdout] 5f2462ef59e0df9151acf7d570661dea64f833fdd8386992ff5c9bc12821029b