Dec 06 02:59:23.239 INFO testing csreid/nqueens-rs against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 02:59:23.239 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt build --frozen" "-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"`
Dec 06 02:59:23.482 INFO [stdout] 35bb94a2ac0bf10adf0f6b77d93cea2cab9143900f9f14ecc257692315836312
Dec 06 02:59:23.484 INFO running `"docker" "start" "-a" "35bb94a2ac0bf10adf0f6b77d93cea2cab9143900f9f14ecc257692315836312"`
Dec 06 02:59:23.863 INFO [stderr] usermod: no changes
Dec 06 02:59:23.917 INFO [stderr]    Compiling stopwatch v0.0.7
Dec 06 02:59:24.615 INFO [stderr]    Compiling nqueens-rs v0.1.0 (/source)
Dec 06 02:59:25.236 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 06 02:59:25.236 INFO [stderr]    --> src/main.rs:118:12
Dec 06 02:59:25.236 INFO [stderr]     |
Dec 06 02:59:25.236 INFO [stderr] 118 |         for i in (0..=N) {
Dec 06 02:59:25.236 INFO [stderr]     |                  ^^^^^^^ help: remove these parentheses
Dec 06 02:59:25.236 INFO [stderr]     |
Dec 06 02:59:25.236 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 06 02:59:25.236 INFO [stderr] 
Dec 06 02:59:25.236 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 06 02:59:25.236 INFO [stderr]    --> src/main.rs:119:13
Dec 06 02:59:25.236 INFO [stderr]     |
Dec 06 02:59:25.236 INFO [stderr] 119 |             for j in (0..=N) {
Dec 06 02:59:25.236 INFO [stderr]     |                      ^^^^^^^ help: remove these parentheses
Dec 06 02:59:25.236 INFO [stderr] 
Dec 06 02:59:25.236 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 06 02:59:25.236 INFO [stderr]    --> src/main.rs:182:12
Dec 06 02:59:25.236 INFO [stderr]     |
Dec 06 02:59:25.236 INFO [stderr] 182 |         for i in (0..N) {
Dec 06 02:59:25.237 INFO [stderr]     |                  ^^^^^^ help: remove these parentheses
Dec 06 02:59:25.237 INFO [stderr] 
Dec 06 02:59:25.237 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 06 02:59:25.237 INFO [stderr]    --> src/main.rs:183:13
Dec 06 02:59:25.237 INFO [stderr]     |
Dec 06 02:59:25.237 INFO [stderr] 183 |             for j in (0..N) {
Dec 06 02:59:25.237 INFO [stderr]     |                      ^^^^^^ help: remove these parentheses
Dec 06 02:59:25.237 INFO [stderr] 
Dec 06 02:59:25.237 INFO [stderr] warning: unnecessary parentheses around assigned value
Dec 06 02:59:25.237 INFO [stderr]    --> src/main.rs:245:13
Dec 06 02:59:25.237 INFO [stderr]     |
Dec 06 02:59:25.237 INFO [stderr] 245 |     let time = (sw.elapsed_ms() as f64);
Dec 06 02:59:25.237 INFO [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 06 02:59:25.237 INFO [stderr] 
Dec 06 02:59:25.324 INFO [stderr] warning: unused variable: `i`
Dec 06 02:59:25.324 INFO [stderr]    --> src/main.rs:118:7
Dec 06 02:59:25.324 INFO [stderr]     |
Dec 06 02:59:25.324 INFO [stderr] 118 |         for i in (0..=N) {
Dec 06 02:59:25.324 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 06 02:59:25.324 INFO [stderr]     |
Dec 06 02:59:25.324 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 06 02:59:25.324 INFO [stderr] 
Dec 06 02:59:25.324 INFO [stderr] warning: unused variable: `children`
Dec 06 02:59:25.324 INFO [stderr]    --> src/main.rs:219:7
Dec 06 02:59:25.324 INFO [stderr]     |
Dec 06 02:59:25.324 INFO [stderr] 219 |         let children = self.children();
Dec 06 02:59:25.324 INFO [stderr]     |             ^^^^^^^^ help: consider using `_children` instead
Dec 06 02:59:25.324 INFO [stderr] 
Dec 06 02:59:25.345 INFO [stderr] warning: method is never used: `n_queens_bestfs`
Dec 06 02:59:25.345 INFO [stderr]    --> src/main.rs:193:2
Dec 06 02:59:25.345 INFO [stderr]     |
Dec 06 02:59:25.345 INFO [stderr] 193 |     fn n_queens_bestfs(&self, n:i32) -> (Board, i32) {
Dec 06 02:59:25.345 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 02:59:25.345 INFO [stderr]     |
Dec 06 02:59:25.345 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 06 02:59:25.345 INFO [stderr] 
Dec 06 02:59:25.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:25.345 INFO [stderr]   --> src/main.rs:78:4
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr] 78 |             write!(f, "+---");
Dec 06 02:59:25.345 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 02:59:25.345 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:25.345 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 06 02:59:25.345 INFO [stderr] 
Dec 06 02:59:25.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:25.345 INFO [stderr]   --> src/main.rs:81:3
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr] 81 |         write!(f, "+\n");
Dec 06 02:59:25.345 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:25.345 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 06 02:59:25.345 INFO [stderr] 
Dec 06 02:59:25.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:25.345 INFO [stderr]   --> src/main.rs:86:6
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr] 86 |                     write!(f, "| Q ");
Dec 06 02:59:25.345 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:25.345 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 06 02:59:25.345 INFO [stderr] 
Dec 06 02:59:25.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:25.345 INFO [stderr]   --> src/main.rs:88:6
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr] 88 |                     write!(f, "|   ");
Dec 06 02:59:25.345 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:25.345 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 06 02:59:25.345 INFO [stderr] 
Dec 06 02:59:25.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:25.345 INFO [stderr]   --> src/main.rs:92:4
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr] 92 |             write!(f, "|\n");
Dec 06 02:59:25.345 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:25.345 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 06 02:59:25.345 INFO [stderr] 
Dec 06 02:59:25.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:25.345 INFO [stderr]   --> src/main.rs:95:5
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr] 95 |                 write!(f, "+---");
Dec 06 02:59:25.345 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:25.345 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 06 02:59:25.345 INFO [stderr] 
Dec 06 02:59:25.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:25.345 INFO [stderr]   --> src/main.rs:97:4
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr] 97 |             write!(f, "+\n");
Dec 06 02:59:25.345 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 06 02:59:25.345 INFO [stderr]    |
Dec 06 02:59:25.345 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:25.345 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 06 02:59:25.345 INFO [stderr] 
Dec 06 02:59:25.345 INFO [stderr] warning: variable `startTime` should have a snake case name such as `start_time`
Dec 06 02:59:25.345 INFO [stderr]    --> src/main.rs:220:7
Dec 06 02:59:25.345 INFO [stderr]     |
Dec 06 02:59:25.345 INFO [stderr] 220 |         let startTime = Stopwatch::start_new();
Dec 06 02:59:25.345 INFO [stderr]     |             ^^^^^^^^^
Dec 06 02:59:25.345 INFO [stderr]     |
Dec 06 02:59:25.345 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 06 02:59:25.345 INFO [stderr] 
Dec 06 02:59:25.870 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
Dec 06 02:59:25.871 INFO [stderr] su: No module specific data is present
Dec 06 02:59:26.329 INFO running `"docker" "inspect" "35bb94a2ac0bf10adf0f6b77d93cea2cab9143900f9f14ecc257692315836312"`
Dec 06 02:59:26.471 INFO running `"docker" "rm" "-f" "35bb94a2ac0bf10adf0f6b77d93cea2cab9143900f9f14ecc257692315836312"`
Dec 06 02:59:26.649 INFO [stdout] 35bb94a2ac0bf10adf0f6b77d93cea2cab9143900f9f14ecc257692315836312
Dec 06 02:59:26.654 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen --no-run" "-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"`
Dec 06 02:59:26.872 INFO [stdout] 6e98dae30a88d46d931df306010f3355074e740cce0ed1d3d0b895df1779ef81
Dec 06 02:59:26.877 INFO running `"docker" "start" "-a" "6e98dae30a88d46d931df306010f3355074e740cce0ed1d3d0b895df1779ef81"`
Dec 06 02:59:27.476 INFO [stderr] usermod: no changes
Dec 06 02:59:27.548 INFO [stderr]    Compiling nqueens-rs v0.1.0 (/source)
Dec 06 02:59:28.228 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 06 02:59:28.228 INFO [stderr]    --> src/main.rs:118:12
Dec 06 02:59:28.228 INFO [stderr]     |
Dec 06 02:59:28.228 INFO [stderr] 118 |         for i in (0..=N) {
Dec 06 02:59:28.228 INFO [stderr]     |                  ^^^^^^^ help: remove these parentheses
Dec 06 02:59:28.228 INFO [stderr]     |
Dec 06 02:59:28.228 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 06 02:59:28.228 INFO [stderr] 
Dec 06 02:59:28.228 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 06 02:59:28.228 INFO [stderr]    --> src/main.rs:119:13
Dec 06 02:59:28.228 INFO [stderr]     |
Dec 06 02:59:28.228 INFO [stderr] 119 |             for j in (0..=N) {
Dec 06 02:59:28.228 INFO [stderr]     |                      ^^^^^^^ help: remove these parentheses
Dec 06 02:59:28.228 INFO [stderr] 
Dec 06 02:59:28.228 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 06 02:59:28.228 INFO [stderr]    --> src/main.rs:182:12
Dec 06 02:59:28.228 INFO [stderr]     |
Dec 06 02:59:28.228 INFO [stderr] 182 |         for i in (0..N) {
Dec 06 02:59:28.228 INFO [stderr]     |                  ^^^^^^ help: remove these parentheses
Dec 06 02:59:28.228 INFO [stderr] 
Dec 06 02:59:28.228 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 06 02:59:28.228 INFO [stderr]    --> src/main.rs:183:13
Dec 06 02:59:28.228 INFO [stderr]     |
Dec 06 02:59:28.228 INFO [stderr] 183 |             for j in (0..N) {
Dec 06 02:59:28.228 INFO [stderr]     |                      ^^^^^^ help: remove these parentheses
Dec 06 02:59:28.228 INFO [stderr] 
Dec 06 02:59:28.228 INFO [stderr] warning: unnecessary parentheses around assigned value
Dec 06 02:59:28.228 INFO [stderr]    --> src/main.rs:245:13
Dec 06 02:59:28.228 INFO [stderr]     |
Dec 06 02:59:28.228 INFO [stderr] 245 |     let time = (sw.elapsed_ms() as f64);
Dec 06 02:59:28.228 INFO [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 06 02:59:28.228 INFO [stderr] 
Dec 06 02:59:28.316 INFO [stderr] warning: unused variable: `i`
Dec 06 02:59:28.316 INFO [stderr]    --> src/main.rs:118:7
Dec 06 02:59:28.316 INFO [stderr]     |
Dec 06 02:59:28.316 INFO [stderr] 118 |         for i in (0..=N) {
Dec 06 02:59:28.316 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 06 02:59:28.316 INFO [stderr]     |
Dec 06 02:59:28.316 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 06 02:59:28.316 INFO [stderr] 
Dec 06 02:59:28.316 INFO [stderr] warning: unused variable: `children`
Dec 06 02:59:28.316 INFO [stderr]    --> src/main.rs:219:7
Dec 06 02:59:28.316 INFO [stderr]     |
Dec 06 02:59:28.316 INFO [stderr] 219 |         let children = self.children();
Dec 06 02:59:28.316 INFO [stderr]     |             ^^^^^^^^ help: consider using `_children` instead
Dec 06 02:59:28.317 INFO [stderr] 
Dec 06 02:59:28.340 INFO [stderr] warning: method is never used: `n_queens_bestfs`
Dec 06 02:59:28.340 INFO [stderr]    --> src/main.rs:193:2
Dec 06 02:59:28.340 INFO [stderr]     |
Dec 06 02:59:28.340 INFO [stderr] 193 |     fn n_queens_bestfs(&self, n:i32) -> (Board, i32) {
Dec 06 02:59:28.340 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 02:59:28.340 INFO [stderr]     |
Dec 06 02:59:28.340 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 06 02:59:28.340 INFO [stderr] 
Dec 06 02:59:28.340 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:28.340 INFO [stderr]   --> src/main.rs:78:4
Dec 06 02:59:28.340 INFO [stderr]    |
Dec 06 02:59:28.340 INFO [stderr] 78 |             write!(f, "+---");
Dec 06 02:59:28.340 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 06 02:59:28.340 INFO [stderr]    |
Dec 06 02:59:28.340 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 02:59:28.344 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:28.344 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 06 02:59:28.344 INFO [stderr] 
Dec 06 02:59:28.344 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:28.344 INFO [stderr]   --> src/main.rs:81:3
Dec 06 02:59:28.344 INFO [stderr]    |
Dec 06 02:59:28.344 INFO [stderr] 81 |         write!(f, "+\n");
Dec 06 02:59:28.344 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 06 02:59:28.344 INFO [stderr]    |
Dec 06 02:59:28.344 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:28.344 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 06 02:59:28.344 INFO [stderr] 
Dec 06 02:59:28.344 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:28.344 INFO [stderr]   --> src/main.rs:86:6
Dec 06 02:59:28.344 INFO [stderr]    |
Dec 06 02:59:28.344 INFO [stderr] 86 |                     write!(f, "| Q ");
Dec 06 02:59:28.344 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^
Dec 06 02:59:28.344 INFO [stderr]    |
Dec 06 02:59:28.344 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:28.344 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 06 02:59:28.344 INFO [stderr] 
Dec 06 02:59:28.344 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:28.344 INFO [stderr]   --> src/main.rs:88:6
Dec 06 02:59:28.344 INFO [stderr]    |
Dec 06 02:59:28.344 INFO [stderr] 88 |                     write!(f, "|   ");
Dec 06 02:59:28.344 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^
Dec 06 02:59:28.344 INFO [stderr]    |
Dec 06 02:59:28.344 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:28.344 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 06 02:59:28.344 INFO [stderr] 
Dec 06 02:59:28.344 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:28.344 INFO [stderr]   --> src/main.rs:92:4
Dec 06 02:59:28.344 INFO [stderr]    |
Dec 06 02:59:28.344 INFO [stderr] 92 |             write!(f, "|\n");
Dec 06 02:59:28.344 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 06 02:59:28.344 INFO [stderr]    |
Dec 06 02:59:28.344 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:28.344 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 06 02:59:28.344 INFO [stderr] 
Dec 06 02:59:28.344 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:28.344 INFO [stderr]   --> src/main.rs:95:5
Dec 06 02:59:28.344 INFO [stderr]    |
Dec 06 02:59:28.344 INFO [stderr] 95 |                 write!(f, "+---");
Dec 06 02:59:28.344 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^
Dec 06 02:59:28.344 INFO [stderr]    |
Dec 06 02:59:28.344 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:28.344 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 06 02:59:28.344 INFO [stderr] 
Dec 06 02:59:28.344 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 02:59:28.345 INFO [stderr]   --> src/main.rs:97:4
Dec 06 02:59:28.345 INFO [stderr]    |
Dec 06 02:59:28.345 INFO [stderr] 97 |             write!(f, "+\n");
Dec 06 02:59:28.345 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 06 02:59:28.345 INFO [stderr]    |
Dec 06 02:59:28.345 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 02:59:28.345 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 06 02:59:28.345 INFO [stderr] 
Dec 06 02:59:28.345 INFO [stderr] warning: variable `startTime` should have a snake case name such as `start_time`
Dec 06 02:59:28.345 INFO [stderr]    --> src/main.rs:220:7
Dec 06 02:59:28.345 INFO [stderr]     |
Dec 06 02:59:28.345 INFO [stderr] 220 |         let startTime = Stopwatch::start_new();
Dec 06 02:59:28.345 INFO [stderr]     |             ^^^^^^^^^
Dec 06 02:59:28.345 INFO [stderr]     |
Dec 06 02:59:28.345 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 06 02:59:28.345 INFO [stderr] 
Dec 06 02:59:28.572 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
Dec 06 02:59:28.573 INFO [stderr] su: No module specific data is present
Dec 06 02:59:28.974 INFO running `"docker" "inspect" "6e98dae30a88d46d931df306010f3355074e740cce0ed1d3d0b895df1779ef81"`
Dec 06 02:59:29.162 INFO running `"docker" "rm" "-f" "6e98dae30a88d46d931df306010f3355074e740cce0ed1d3d0b895df1779ef81"`
Dec 06 02:59:29.321 INFO [stdout] 6e98dae30a88d46d931df306010f3355074e740cce0ed1d3d0b895df1779ef81
Dec 06 02:59:29.326 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen" "-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"`
Dec 06 02:59:29.527 INFO [stdout] 960e77c2cd52459c5430709851050d4778d3d588abe64a418819104d6f64e128
Dec 06 02:59:29.529 INFO running `"docker" "start" "-a" "960e77c2cd52459c5430709851050d4778d3d588abe64a418819104d6f64e128"`
Dec 06 02:59:30.110 INFO [stderr] usermod: no changes
Dec 06 02:59:30.169 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 06 02:59:30.169 INFO [stderr]      Running /target/debug/deps/nqueens_rs-18b65292a4174bc7
Dec 06 02:59:30.169 INFO [stdout] 
Dec 06 02:59:30.169 INFO [stdout] running 0 tests
Dec 06 02:59:30.171 INFO [stdout] 
Dec 06 02:59:30.171 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 02:59:30.171 INFO [stdout] 
Dec 06 02:59:30.172 INFO [stderr] su: No module specific data is present
Dec 06 02:59:30.509 INFO running `"docker" "inspect" "960e77c2cd52459c5430709851050d4778d3d588abe64a418819104d6f64e128"`
Dec 06 02:59:30.666 INFO running `"docker" "rm" "-f" "960e77c2cd52459c5430709851050d4778d3d588abe64a418819104d6f64e128"`
Dec 06 02:59:30.852 INFO [stdout] 960e77c2cd52459c5430709851050d4778d3d588abe64a418819104d6f64e128