Dec 19 20:02:09.709 INFO checking bastikr/wordacademy-solver against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 20:02:09.709 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/bastikr/wordacademy-solver:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 20:02:10.138 INFO [stdout] 3222bd26b0b95887b8b77e6c685039fb0efe7c13b14ecc969406648395fc2777
Dec 19 20:02:10.148 INFO running `"docker" "start" "-a" "3222bd26b0b95887b8b77e6c685039fb0efe7c13b14ecc969406648395fc2777"`
Dec 19 20:02:11.663 INFO [stderr]     Checking wordacademy-solver v0.1.0 (/opt/crater/workdir)
Dec 19 20:02:12.036 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 19 20:02:12.036 INFO [stderr]  --> src/chargraph.rs:1:5
Dec 19 20:02:12.036 INFO [stderr]   |
Dec 19 20:02:12.037 INFO [stderr] 1 | use std::collections::HashMap;
Dec 19 20:02:12.037 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:02:12.037 INFO [stderr]   |
Dec 19 20:02:12.037 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 20:02:12.037 INFO [stderr] 
Dec 19 20:02:12.140 INFO [stderr] warning: unused import: `Mask`
Dec 19 20:02:12.140 INFO [stderr]    --> src/board.rs:245:29
Dec 19 20:02:12.140 INFO [stderr]     |
Dec 19 20:02:12.140 INFO [stderr] 245 |     use board::{Neighbours, Mask};
Dec 19 20:02:12.140 INFO [stderr]     |                             ^^^^
Dec 19 20:02:12.140 INFO [stderr]     |
Dec 19 20:02:12.140 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 19 20:02:12.140 INFO [stderr] 
Dec 19 20:02:12.140 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 19 20:02:12.140 INFO [stderr]  --> src/chargraph.rs:1:5
Dec 19 20:02:12.140 INFO [stderr]   |
Dec 19 20:02:12.140 INFO [stderr] 1 | use std::collections::HashMap;
Dec 19 20:02:12.140 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:02:12.140 INFO [stderr] 
Dec 19 20:02:12.332 INFO [stderr] warning: unused variable: `index`
Dec 19 20:02:12.332 INFO [stderr]   --> src/chargraph.rs:73:17
Dec 19 20:02:12.332 INFO [stderr]    |
Dec 19 20:02:12.332 INFO [stderr] 73 |             Err(index) => { panic!("bla") }
Dec 19 20:02:12.332 INFO [stderr]    |                 ^^^^^ help: consider using `_index` instead
Dec 19 20:02:12.332 INFO [stderr]    |
Dec 19 20:02:12.332 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 20:02:12.333 INFO [stderr] 
Dec 19 20:02:12.367 INFO [stderr] warning: unused variable: `graph`
Dec 19 20:02:12.368 INFO [stderr]   --> src/chargraph.rs:97:13
Dec 19 20:02:12.368 INFO [stderr]    |
Dec 19 20:02:12.368 INFO [stderr] 97 |         let graph = CharGraph::from_strings(&words);
Dec 19 20:02:12.368 INFO [stderr]    |             ^^^^^ help: consider using `_graph` instead
Dec 19 20:02:12.368 INFO [stderr]    |
Dec 19 20:02:12.368 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 20:02:12.368 INFO [stderr] 
Dec 19 20:02:12.369 INFO [stderr] warning: unused variable: `index`
Dec 19 20:02:12.369 INFO [stderr]   --> src/chargraph.rs:73:17
Dec 19 20:02:12.369 INFO [stderr]    |
Dec 19 20:02:12.369 INFO [stderr] 73 |             Err(index) => { panic!("bla") }
Dec 19 20:02:12.370 INFO [stderr]    |                 ^^^^^ help: consider using `_index` instead
Dec 19 20:02:12.370 INFO [stderr] 
Dec 19 20:02:12.480 INFO [stderr] warning: function is never used: `writeable`
Dec 19 20:02:12.480 INFO [stderr]    --> src/solver_positional.rs:515:1
Dec 19 20:02:12.480 INFO [stderr]     |
Dec 19 20:02:12.480 INFO [stderr] 515 | fn writeable(word: &str, board: &Board) -> bool {
Dec 19 20:02:12.480 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:02:12.480 INFO [stderr]     |
Dec 19 20:02:12.480 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 20:02:12.480 INFO [stderr] 
Dec 19 20:02:12.480 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:02:12.480 INFO [stderr]   --> src/board.rs:66:9
Dec 19 20:02:12.480 INFO [stderr]    |
Dec 19 20:02:12.480 INFO [stderr] 66 |         writeln!(f);
Dec 19 20:02:12.480 INFO [stderr]    |         ^^^^^^^^^^^^
Dec 19 20:02:12.480 INFO [stderr]    |
Dec 19 20:02:12.480 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 20:02:12.480 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:02:12.480 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 20:02:12.480 INFO [stderr] 
Dec 19 20:02:12.480 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:02:12.480 INFO [stderr]   --> src/board.rs:68:13
Dec 19 20:02:12.480 INFO [stderr]    |
Dec 19 20:02:12.480 INFO [stderr] 68 |             writeln!(f, "{}", separator);
Dec 19 20:02:12.480 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:02:12.480 INFO [stderr]    |
Dec 19 20:02:12.480 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:02:12.480 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 20:02:12.480 INFO [stderr] 
Dec 19 20:02:12.480 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:02:12.480 INFO [stderr]   --> src/board.rs:70:17
Dec 19 20:02:12.480 INFO [stderr]    |
Dec 19 20:02:12.480 INFO [stderr] 70 |                 write!(f, "|");
Dec 19 20:02:12.480 INFO [stderr]    |                 ^^^^^^^^^^^^^^^
Dec 19 20:02:12.480 INFO [stderr]    |
Dec 19 20:02:12.480 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:02:12.480 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 20:02:12.481 INFO [stderr] 
Dec 19 20:02:12.481 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:02:12.481 INFO [stderr]   --> src/board.rs:72:21
Dec 19 20:02:12.481 INFO [stderr]    |
Dec 19 20:02:12.481 INFO [stderr] 72 |                     write!(f, "{}", self.get(i, j));
Dec 19 20:02:12.481 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:02:12.481 INFO [stderr]    |
Dec 19 20:02:12.481 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:02:12.481 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 20:02:12.481 INFO [stderr] 
Dec 19 20:02:12.481 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:02:12.481 INFO [stderr]   --> src/board.rs:74:21
Dec 19 20:02:12.481 INFO [stderr]    |
Dec 19 20:02:12.481 INFO [stderr] 74 |                     write!(f, " ");
Dec 19 20:02:12.481 INFO [stderr]    |                     ^^^^^^^^^^^^^^^
Dec 19 20:02:12.481 INFO [stderr]    |
Dec 19 20:02:12.481 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:02:12.481 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 20:02:12.481 INFO [stderr] 
Dec 19 20:02:12.481 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:02:12.481 INFO [stderr]   --> src/board.rs:77:13
Dec 19 20:02:12.481 INFO [stderr]    |
Dec 19 20:02:12.481 INFO [stderr] 77 |             writeln!(f, "|");
Dec 19 20:02:12.481 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 20:02:12.481 INFO [stderr]    |
Dec 19 20:02:12.481 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:02:12.481 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 20:02:12.481 INFO [stderr] 
Dec 19 20:02:12.485 INFO [stderr] warning: function is never used: `writeable`
Dec 19 20:02:12.485 INFO [stderr]    --> src/solver_positional.rs:515:1
Dec 19 20:02:12.485 INFO [stderr]     |
Dec 19 20:02:12.485 INFO [stderr] 515 | fn writeable(word: &str, board: &Board) -> bool {
Dec 19 20:02:12.485 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:02:12.485 INFO [stderr]     |
Dec 19 20:02:12.485 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 20:02:12.485 INFO [stderr] 
Dec 19 20:02:12.485 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:02:12.485 INFO [stderr]   --> src/board.rs:66:9
Dec 19 20:02:12.485 INFO [stderr]    |
Dec 19 20:02:12.485 INFO [stderr] 66 |         writeln!(f);
Dec 19 20:02:12.485 INFO [stderr]    |         ^^^^^^^^^^^^
Dec 19 20:02:12.485 INFO [stderr]    |
Dec 19 20:02:12.485 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 20:02:12.485 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:02:12.485 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 20:02:12.485 INFO [stderr] 
Dec 19 20:02:12.485 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:02:12.485 INFO [stderr]   --> src/board.rs:68:13
Dec 19 20:02:12.485 INFO [stderr]    |
Dec 19 20:02:12.485 INFO [stderr] 68 |             writeln!(f, "{}", separator);
Dec 19 20:02:12.485 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:02:12.485 INFO [stderr]    |
Dec 19 20:02:12.485 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:02:12.485 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 20:02:12.485 INFO [stderr] 
Dec 19 20:02:12.485 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:02:12.485 INFO [stderr]   --> src/board.rs:70:17
Dec 19 20:02:12.488 INFO [stderr]    |
Dec 19 20:02:12.488 INFO [stderr] 70 |                 write!(f, "|");
Dec 19 20:02:12.488 INFO [stderr]    |                 ^^^^^^^^^^^^^^^
Dec 19 20:02:12.488 INFO [stderr]    |
Dec 19 20:02:12.488 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:02:12.488 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 20:02:12.488 INFO [stderr] 
Dec 19 20:02:12.488 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:02:12.488 INFO [stderr]   --> src/board.rs:72:21
Dec 19 20:02:12.488 INFO [stderr]    |
Dec 19 20:02:12.488 INFO [stderr] 72 |                     write!(f, "{}", self.get(i, j));
Dec 19 20:02:12.488 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:02:12.488 INFO [stderr]    |
Dec 19 20:02:12.488 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:02:12.488 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 20:02:12.488 INFO [stderr] 
Dec 19 20:02:12.488 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:02:12.488 INFO [stderr]   --> src/board.rs:74:21
Dec 19 20:02:12.488 INFO [stderr]    |
Dec 19 20:02:12.492 INFO [stderr] 74 |                     write!(f, " ");
Dec 19 20:02:12.492 INFO [stderr]    |                     ^^^^^^^^^^^^^^^
Dec 19 20:02:12.492 INFO [stderr]    |
Dec 19 20:02:12.492 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:02:12.492 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 20:02:12.492 INFO [stderr] 
Dec 19 20:02:12.492 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:02:12.492 INFO [stderr]   --> src/board.rs:77:13
Dec 19 20:02:12.492 INFO [stderr]    |
Dec 19 20:02:12.492 INFO [stderr] 77 |             writeln!(f, "|");
Dec 19 20:02:12.492 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 20:02:12.492 INFO [stderr]    |
Dec 19 20:02:12.492 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:02:12.492 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 20:02:12.492 INFO [stderr] 
Dec 19 20:02:13.117 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
Dec 19 20:02:13.585 INFO running `"docker" "inspect" "3222bd26b0b95887b8b77e6c685039fb0efe7c13b14ecc969406648395fc2777"`
Dec 19 20:02:13.723 INFO running `"docker" "rm" "-f" "3222bd26b0b95887b8b77e6c685039fb0efe7c13b14ecc969406648395fc2777"`
Dec 19 20:02:13.828 INFO [stdout] 3222bd26b0b95887b8b77e6c685039fb0efe7c13b14ecc969406648395fc2777