Nov 28 08:53:26.663 INFO checking bastikr/wordacademy-solver against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 08:53:26.667 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 28 08:53:27.112 INFO [stdout] cb52182106331017e6c075b566b466285ef874fe70979fc99a48e3e475e2e0ba
Nov 28 08:53:27.114 INFO running `"docker" "start" "-a" "cb52182106331017e6c075b566b466285ef874fe70979fc99a48e3e475e2e0ba"`
Nov 28 08:53:28.621 INFO [stderr] usermod: no changes
Nov 28 08:53:28.712 INFO [stderr]     Checking wordacademy-solver v0.1.0 (/source)
Nov 28 08:53:29.176 INFO [stderr] warning: unused import: `Mask`
Nov 28 08:53:29.176 INFO [stderr]    --> src/board.rs:245:29
Nov 28 08:53:29.176 INFO [stderr]     |
Nov 28 08:53:29.176 INFO [stderr] 245 |     use board::{Neighbours, Mask};
Nov 28 08:53:29.176 INFO [stderr]     |                             ^^^^
Nov 28 08:53:29.176 INFO [stderr]     |
Nov 28 08:53:29.176 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Nov 28 08:53:29.176 INFO [stderr] 
Nov 28 08:53:29.176 INFO [stderr] warning: unused import: `std::collections::HashMap`
Nov 28 08:53:29.176 INFO [stderr]  --> src/chargraph.rs:1:5
Nov 28 08:53:29.176 INFO [stderr]   |
Nov 28 08:53:29.176 INFO [stderr] 1 | use std::collections::HashMap;
Nov 28 08:53:29.176 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:53:29.176 INFO [stderr] 
Nov 28 08:53:29.377 INFO [stderr] warning: unused variable: `graph`
Nov 28 08:53:29.377 INFO [stderr]   --> src/chargraph.rs:97:13
Nov 28 08:53:29.377 INFO [stderr]    |
Nov 28 08:53:29.377 INFO [stderr] 97 |         let graph = CharGraph::from_strings(&words);
Nov 28 08:53:29.377 INFO [stderr]    |             ^^^^^ help: consider using `_graph` instead
Nov 28 08:53:29.377 INFO [stderr]    |
Nov 28 08:53:29.377 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 08:53:29.377 INFO [stderr] 
Nov 28 08:53:29.377 INFO [stderr] warning: unused variable: `index`
Nov 28 08:53:29.377 INFO [stderr]   --> src/chargraph.rs:73:17
Nov 28 08:53:29.377 INFO [stderr]    |
Nov 28 08:53:29.377 INFO [stderr] 73 |             Err(index) => { panic!("bla") }
Nov 28 08:53:29.378 INFO [stderr]    |                 ^^^^^ help: consider using `_index` instead
Nov 28 08:53:29.378 INFO [stderr] 
Nov 28 08:53:29.409 INFO [stderr] warning: unused import: `std::collections::HashMap`
Nov 28 08:53:29.409 INFO [stderr]  --> src/chargraph.rs:1:5
Nov 28 08:53:29.410 INFO [stderr]   |
Nov 28 08:53:29.410 INFO [stderr] 1 | use std::collections::HashMap;
Nov 28 08:53:29.410 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:53:29.410 INFO [stderr]   |
Nov 28 08:53:29.410 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 08:53:29.410 INFO [stderr] 
Nov 28 08:53:29.504 INFO [stderr] warning: function is never used: `writeable`
Nov 28 08:53:29.504 INFO [stderr]    --> src/solver_positional.rs:515:1
Nov 28 08:53:29.504 INFO [stderr]     |
Nov 28 08:53:29.504 INFO [stderr] 515 | fn writeable(word: &str, board: &Board) -> bool {
Nov 28 08:53:29.504 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:53:29.504 INFO [stderr]     |
Nov 28 08:53:29.504 INFO [stderr]     = note: #[warn(dead_code)] on by default
Nov 28 08:53:29.504 INFO [stderr] 
Nov 28 08:53:29.504 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:53:29.504 INFO [stderr]   --> src/board.rs:66:9
Nov 28 08:53:29.504 INFO [stderr]    |
Nov 28 08:53:29.504 INFO [stderr] 66 |         writeln!(f);
Nov 28 08:53:29.504 INFO [stderr]    |         ^^^^^^^^^^^^
Nov 28 08:53:29.504 INFO [stderr]    |
Nov 28 08:53:29.504 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 08:53:29.505 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:53:29.505 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 28 08:53:29.505 INFO [stderr] 
Nov 28 08:53:29.505 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:53:29.505 INFO [stderr]   --> src/board.rs:68:13
Nov 28 08:53:29.505 INFO [stderr]    |
Nov 28 08:53:29.505 INFO [stderr] 68 |             writeln!(f, "{}", separator);
Nov 28 08:53:29.505 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:53:29.505 INFO [stderr]    |
Nov 28 08:53:29.505 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:53:29.505 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 28 08:53:29.505 INFO [stderr] 
Nov 28 08:53:29.505 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:53:29.505 INFO [stderr]   --> src/board.rs:70:17
Nov 28 08:53:29.505 INFO [stderr]    |
Nov 28 08:53:29.505 INFO [stderr] 70 |                 write!(f, "|");
Nov 28 08:53:29.505 INFO [stderr]    |                 ^^^^^^^^^^^^^^^
Nov 28 08:53:29.505 INFO [stderr]    |
Nov 28 08:53:29.505 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:53:29.505 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 28 08:53:29.505 INFO [stderr] 
Nov 28 08:53:29.505 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:53:29.505 INFO [stderr]   --> src/board.rs:72:21
Nov 28 08:53:29.505 INFO [stderr]    |
Nov 28 08:53:29.505 INFO [stderr] 72 |                     write!(f, "{}", self.get(i, j));
Nov 28 08:53:29.505 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:53:29.505 INFO [stderr]    |
Nov 28 08:53:29.505 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:53:29.505 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 28 08:53:29.505 INFO [stderr] 
Nov 28 08:53:29.505 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:53:29.505 INFO [stderr]   --> src/board.rs:74:21
Nov 28 08:53:29.505 INFO [stderr]    |
Nov 28 08:53:29.505 INFO [stderr] 74 |                     write!(f, " ");
Nov 28 08:53:29.505 INFO [stderr]    |                     ^^^^^^^^^^^^^^^
Nov 28 08:53:29.505 INFO [stderr]    |
Nov 28 08:53:29.505 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:53:29.505 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 28 08:53:29.505 INFO [stderr] 
Nov 28 08:53:29.505 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:53:29.505 INFO [stderr]   --> src/board.rs:77:13
Nov 28 08:53:29.505 INFO [stderr]    |
Nov 28 08:53:29.505 INFO [stderr] 77 |             writeln!(f, "|");
Nov 28 08:53:29.505 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Nov 28 08:53:29.505 INFO [stderr]    |
Nov 28 08:53:29.505 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:53:29.505 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 28 08:53:29.505 INFO [stderr] 
Nov 28 08:53:29.704 INFO [stderr] warning: unused variable: `index`
Nov 28 08:53:29.704 INFO [stderr]   --> src/chargraph.rs:73:17
Nov 28 08:53:29.704 INFO [stderr]    |
Nov 28 08:53:29.704 INFO [stderr] 73 |             Err(index) => { panic!("bla") }
Nov 28 08:53:29.704 INFO [stderr]    |                 ^^^^^ help: consider using `_index` instead
Nov 28 08:53:29.704 INFO [stderr]    |
Nov 28 08:53:29.704 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 08:53:29.704 INFO [stderr] 
Nov 28 08:53:29.812 INFO [stderr] warning: function is never used: `writeable`
Nov 28 08:53:29.812 INFO [stderr]    --> src/solver_positional.rs:515:1
Nov 28 08:53:29.812 INFO [stderr]     |
Nov 28 08:53:29.812 INFO [stderr] 515 | fn writeable(word: &str, board: &Board) -> bool {
Nov 28 08:53:29.812 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:53:29.812 INFO [stderr]     |
Nov 28 08:53:29.812 INFO [stderr]     = note: #[warn(dead_code)] on by default
Nov 28 08:53:29.812 INFO [stderr] 
Nov 28 08:53:29.812 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:53:29.812 INFO [stderr]   --> src/board.rs:66:9
Nov 28 08:53:29.812 INFO [stderr]    |
Nov 28 08:53:29.812 INFO [stderr] 66 |         writeln!(f);
Nov 28 08:53:29.812 INFO [stderr]    |         ^^^^^^^^^^^^
Nov 28 08:53:29.812 INFO [stderr]    |
Nov 28 08:53:29.812 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 08:53:29.812 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:53:29.812 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 28 08:53:29.812 INFO [stderr] 
Nov 28 08:53:29.813 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:53:29.813 INFO [stderr]   --> src/board.rs:68:13
Nov 28 08:53:29.813 INFO [stderr]    |
Nov 28 08:53:29.813 INFO [stderr] 68 |             writeln!(f, "{}", separator);
Nov 28 08:53:29.813 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:53:29.813 INFO [stderr]    |
Nov 28 08:53:29.813 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:53:29.813 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 28 08:53:29.813 INFO [stderr] 
Nov 28 08:53:29.813 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:53:29.813 INFO [stderr]   --> src/board.rs:70:17
Nov 28 08:53:29.813 INFO [stderr]    |
Nov 28 08:53:29.813 INFO [stderr] 70 |                 write!(f, "|");
Nov 28 08:53:29.813 INFO [stderr]    |                 ^^^^^^^^^^^^^^^
Nov 28 08:53:29.813 INFO [stderr]    |
Nov 28 08:53:29.813 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:53:29.813 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 28 08:53:29.813 INFO [stderr] 
Nov 28 08:53:29.813 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:53:29.813 INFO [stderr]   --> src/board.rs:72:21
Nov 28 08:53:29.813 INFO [stderr]    |
Nov 28 08:53:29.813 INFO [stderr] 72 |                     write!(f, "{}", self.get(i, j));
Nov 28 08:53:29.813 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:53:29.813 INFO [stderr]    |
Nov 28 08:53:29.813 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:53:29.813 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 28 08:53:29.813 INFO [stderr] 
Nov 28 08:53:29.813 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:53:29.813 INFO [stderr]   --> src/board.rs:74:21
Nov 28 08:53:29.813 INFO [stderr]    |
Nov 28 08:53:29.813 INFO [stderr] 74 |                     write!(f, " ");
Nov 28 08:53:29.813 INFO [stderr]    |                     ^^^^^^^^^^^^^^^
Nov 28 08:53:29.813 INFO [stderr]    |
Nov 28 08:53:29.813 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:53:29.813 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 28 08:53:29.813 INFO [stderr] 
Nov 28 08:53:29.813 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:53:29.813 INFO [stderr]   --> src/board.rs:77:13
Nov 28 08:53:29.813 INFO [stderr]    |
Nov 28 08:53:29.813 INFO [stderr] 77 |             writeln!(f, "|");
Nov 28 08:53:29.813 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Nov 28 08:53:29.813 INFO [stderr]    |
Nov 28 08:53:29.813 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:53:29.813 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 28 08:53:29.813 INFO [stderr] 
Nov 28 08:53:30.840 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.18s
Nov 28 08:53:30.840 INFO [stderr] su: No module specific data is present
Nov 28 08:53:31.321 INFO running `"docker" "inspect" "cb52182106331017e6c075b566b466285ef874fe70979fc99a48e3e475e2e0ba"`
Nov 28 08:53:31.625 INFO running `"docker" "rm" "-f" "cb52182106331017e6c075b566b466285ef874fe70979fc99a48e3e475e2e0ba"`
Nov 28 08:53:31.932 INFO [stdout] cb52182106331017e6c075b566b466285ef874fe70979fc99a48e3e475e2e0ba