Dec 13 22:48:44.860 INFO testing csreid/nqueens-rs against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 22:48:44.860 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 22:48:45.544 INFO [stdout] f31f12d1ec50080c42a18dac3dd290cea38dd4e95572373ba0795e9559315ba8
Dec 13 22:48:45.547 INFO running `"docker" "start" "-a" "f31f12d1ec50080c42a18dac3dd290cea38dd4e95572373ba0795e9559315ba8"`
Dec 13 22:48:46.666 INFO [stderr] usermod: no changes
Dec 13 22:48:46.752 INFO [stderr]    Compiling num-traits v0.2.6
Dec 13 22:48:46.752 INFO [stderr]    Compiling num-integer v0.1.39
Dec 13 22:48:50.609 INFO [stderr]    Compiling num-complex v0.1.43
Dec 13 22:48:52.372 INFO [stderr]    Compiling num-bigint v0.1.44
Dec 13 22:48:52.372 INFO [stderr]    Compiling num-iter v0.1.37
Dec 13 22:48:55.870 INFO [stderr]    Compiling num-rational v0.1.42
Dec 13 22:48:57.834 INFO [stderr]    Compiling num v0.1.42
Dec 13 22:48:58.361 INFO [stderr]    Compiling stopwatch v0.0.7
Dec 13 22:48:59.136 INFO [stderr]    Compiling nqueens-rs v0.1.0 (/source)
Dec 13 22:48:59.851 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 13 22:48:59.851 INFO [stderr]    --> src/main.rs:118:12
Dec 13 22:48:59.851 INFO [stderr]     |
Dec 13 22:48:59.851 INFO [stderr] 118 |         for i in (0..=N) {
Dec 13 22:48:59.851 INFO [stderr]     |                  ^^^^^^^ help: remove these parentheses
Dec 13 22:48:59.851 INFO [stderr]     |
Dec 13 22:48:59.851 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 13 22:48:59.851 INFO [stderr] 
Dec 13 22:48:59.851 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 13 22:48:59.851 INFO [stderr]    --> src/main.rs:119:13
Dec 13 22:48:59.851 INFO [stderr]     |
Dec 13 22:48:59.852 INFO [stderr] 119 |             for j in (0..=N) {
Dec 13 22:48:59.852 INFO [stderr]     |                      ^^^^^^^ help: remove these parentheses
Dec 13 22:48:59.852 INFO [stderr] 
Dec 13 22:48:59.852 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 13 22:48:59.853 INFO [stderr]    --> src/main.rs:182:12
Dec 13 22:48:59.853 INFO [stderr]     |
Dec 13 22:48:59.853 INFO [stderr] 182 |         for i in (0..N) {
Dec 13 22:48:59.853 INFO [stderr]     |                  ^^^^^^ help: remove these parentheses
Dec 13 22:48:59.853 INFO [stderr] 
Dec 13 22:48:59.854 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 13 22:48:59.854 INFO [stderr]    --> src/main.rs:183:13
Dec 13 22:48:59.854 INFO [stderr]     |
Dec 13 22:48:59.854 INFO [stderr] 183 |             for j in (0..N) {
Dec 13 22:48:59.854 INFO [stderr]     |                      ^^^^^^ help: remove these parentheses
Dec 13 22:48:59.855 INFO [stderr] 
Dec 13 22:48:59.855 INFO [stderr] warning: unnecessary parentheses around assigned value
Dec 13 22:48:59.855 INFO [stderr]    --> src/main.rs:245:13
Dec 13 22:48:59.855 INFO [stderr]     |
Dec 13 22:48:59.856 INFO [stderr] 245 |     let time = (sw.elapsed_ms() as f64);
Dec 13 22:48:59.856 INFO [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 13 22:48:59.856 INFO [stderr] 
Dec 13 22:48:59.939 INFO [stderr] warning: unused variable: `i`
Dec 13 22:48:59.939 INFO [stderr]    --> src/main.rs:118:7
Dec 13 22:48:59.939 INFO [stderr]     |
Dec 13 22:48:59.939 INFO [stderr] 118 |         for i in (0..=N) {
Dec 13 22:48:59.939 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 13 22:48:59.939 INFO [stderr]     |
Dec 13 22:48:59.939 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 13 22:48:59.939 INFO [stderr] 
Dec 13 22:48:59.939 INFO [stderr] warning: unused variable: `children`
Dec 13 22:48:59.939 INFO [stderr]    --> src/main.rs:219:7
Dec 13 22:48:59.939 INFO [stderr]     |
Dec 13 22:48:59.939 INFO [stderr] 219 |         let children = self.children();
Dec 13 22:48:59.939 INFO [stderr]     |             ^^^^^^^^ help: consider using `_children` instead
Dec 13 22:48:59.939 INFO [stderr] 
Dec 13 22:48:59.959 INFO [stderr] warning: method is never used: `n_queens_bestfs`
Dec 13 22:48:59.959 INFO [stderr]    --> src/main.rs:193:2
Dec 13 22:48:59.959 INFO [stderr]     |
Dec 13 22:48:59.959 INFO [stderr] 193 |     fn n_queens_bestfs(&self, n:i32) -> (Board, i32) {
Dec 13 22:48:59.959 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 22:48:59.959 INFO [stderr]     |
Dec 13 22:48:59.959 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 13 22:48:59.959 INFO [stderr] 
Dec 13 22:48:59.960 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:48:59.960 INFO [stderr]   --> src/main.rs:78:4
Dec 13 22:48:59.960 INFO [stderr]    |
Dec 13 22:48:59.960 INFO [stderr] 78 |             write!(f, "+---");
Dec 13 22:48:59.960 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 13 22:48:59.960 INFO [stderr]    |
Dec 13 22:48:59.960 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 22:48:59.960 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:48:59.960 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 13 22:48:59.960 INFO [stderr] 
Dec 13 22:48:59.960 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:48:59.960 INFO [stderr]   --> src/main.rs:81:3
Dec 13 22:48:59.960 INFO [stderr]    |
Dec 13 22:48:59.960 INFO [stderr] 81 |         write!(f, "+\n");
Dec 13 22:48:59.960 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 13 22:48:59.960 INFO [stderr]    |
Dec 13 22:48:59.960 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:48:59.960 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 13 22:48:59.960 INFO [stderr] 
Dec 13 22:48:59.961 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:48:59.961 INFO [stderr]   --> src/main.rs:86:6
Dec 13 22:48:59.961 INFO [stderr]    |
Dec 13 22:48:59.961 INFO [stderr] 86 |                     write!(f, "| Q ");
Dec 13 22:48:59.961 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^
Dec 13 22:48:59.961 INFO [stderr]    |
Dec 13 22:48:59.961 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:48:59.961 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 13 22:48:59.961 INFO [stderr] 
Dec 13 22:48:59.961 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:48:59.961 INFO [stderr]   --> src/main.rs:88:6
Dec 13 22:48:59.961 INFO [stderr]    |
Dec 13 22:48:59.961 INFO [stderr] 88 |                     write!(f, "|   ");
Dec 13 22:48:59.961 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^
Dec 13 22:48:59.961 INFO [stderr]    |
Dec 13 22:48:59.961 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:48:59.961 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 13 22:48:59.961 INFO [stderr] 
Dec 13 22:48:59.961 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:48:59.961 INFO [stderr]   --> src/main.rs:92:4
Dec 13 22:48:59.961 INFO [stderr]    |
Dec 13 22:48:59.961 INFO [stderr] 92 |             write!(f, "|\n");
Dec 13 22:48:59.961 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 13 22:48:59.961 INFO [stderr]    |
Dec 13 22:48:59.961 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:48:59.961 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 13 22:48:59.961 INFO [stderr] 
Dec 13 22:48:59.961 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:48:59.961 INFO [stderr]   --> src/main.rs:95:5
Dec 13 22:48:59.961 INFO [stderr]    |
Dec 13 22:48:59.961 INFO [stderr] 95 |                 write!(f, "+---");
Dec 13 22:48:59.961 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^
Dec 13 22:48:59.961 INFO [stderr]    |
Dec 13 22:48:59.961 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:48:59.961 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 13 22:48:59.967 INFO [stderr] 
Dec 13 22:48:59.967 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:48:59.967 INFO [stderr]   --> src/main.rs:97:4
Dec 13 22:48:59.967 INFO [stderr]    |
Dec 13 22:48:59.967 INFO [stderr] 97 |             write!(f, "+\n");
Dec 13 22:48:59.967 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 13 22:48:59.967 INFO [stderr]    |
Dec 13 22:48:59.967 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:48:59.967 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 13 22:48:59.967 INFO [stderr] 
Dec 13 22:48:59.967 INFO [stderr] warning: variable `startTime` should have a snake case name such as `start_time`
Dec 13 22:48:59.967 INFO [stderr]    --> src/main.rs:220:7
Dec 13 22:48:59.967 INFO [stderr]     |
Dec 13 22:48:59.967 INFO [stderr] 220 |         let startTime = Stopwatch::start_new();
Dec 13 22:48:59.967 INFO [stderr]     |             ^^^^^^^^^
Dec 13 22:48:59.967 INFO [stderr]     |
Dec 13 22:48:59.967 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 13 22:48:59.967 INFO [stderr] 
Dec 13 22:49:00.740 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.05s
Dec 13 22:49:00.744 INFO [stderr] su: No module specific data is present
Dec 13 22:49:02.177 INFO running `"docker" "inspect" "f31f12d1ec50080c42a18dac3dd290cea38dd4e95572373ba0795e9559315ba8"`
Dec 13 22:49:02.380 INFO running `"docker" "rm" "-f" "f31f12d1ec50080c42a18dac3dd290cea38dd4e95572373ba0795e9559315ba8"`
Dec 13 22:49:02.536 INFO [stdout] f31f12d1ec50080c42a18dac3dd290cea38dd4e95572373ba0795e9559315ba8
Dec 13 22:49:02.541 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 22:49:02.903 INFO [stdout] 40882a9e363b7232ec3fbfc053c4473b5b98f1eb494151fb1849e3a682688985
Dec 13 22:49:02.906 INFO running `"docker" "start" "-a" "40882a9e363b7232ec3fbfc053c4473b5b98f1eb494151fb1849e3a682688985"`
Dec 13 22:49:04.275 INFO [stderr] usermod: no changes
Dec 13 22:49:04.368 INFO [stderr]    Compiling nqueens-rs v0.1.0 (/source)
Dec 13 22:49:05.083 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 13 22:49:05.083 INFO [stderr]    --> src/main.rs:118:12
Dec 13 22:49:05.083 INFO [stderr]     |
Dec 13 22:49:05.083 INFO [stderr] 118 |         for i in (0..=N) {
Dec 13 22:49:05.083 INFO [stderr]     |                  ^^^^^^^ help: remove these parentheses
Dec 13 22:49:05.083 INFO [stderr]     |
Dec 13 22:49:05.083 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 13 22:49:05.083 INFO [stderr] 
Dec 13 22:49:05.083 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 13 22:49:05.083 INFO [stderr]    --> src/main.rs:119:13
Dec 13 22:49:05.083 INFO [stderr]     |
Dec 13 22:49:05.083 INFO [stderr] 119 |             for j in (0..=N) {
Dec 13 22:49:05.083 INFO [stderr]     |                      ^^^^^^^ help: remove these parentheses
Dec 13 22:49:05.083 INFO [stderr] 
Dec 13 22:49:05.083 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 13 22:49:05.083 INFO [stderr]    --> src/main.rs:182:12
Dec 13 22:49:05.083 INFO [stderr]     |
Dec 13 22:49:05.083 INFO [stderr] 182 |         for i in (0..N) {
Dec 13 22:49:05.083 INFO [stderr]     |                  ^^^^^^ help: remove these parentheses
Dec 13 22:49:05.083 INFO [stderr] 
Dec 13 22:49:05.083 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 13 22:49:05.083 INFO [stderr]    --> src/main.rs:183:13
Dec 13 22:49:05.083 INFO [stderr]     |
Dec 13 22:49:05.083 INFO [stderr] 183 |             for j in (0..N) {
Dec 13 22:49:05.083 INFO [stderr]     |                      ^^^^^^ help: remove these parentheses
Dec 13 22:49:05.083 INFO [stderr] 
Dec 13 22:49:05.083 INFO [stderr] warning: unnecessary parentheses around assigned value
Dec 13 22:49:05.083 INFO [stderr]    --> src/main.rs:245:13
Dec 13 22:49:05.083 INFO [stderr]     |
Dec 13 22:49:05.083 INFO [stderr] 245 |     let time = (sw.elapsed_ms() as f64);
Dec 13 22:49:05.083 INFO [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 13 22:49:05.083 INFO [stderr] 
Dec 13 22:49:05.179 INFO [stderr] warning: unused variable: `i`
Dec 13 22:49:05.179 INFO [stderr]    --> src/main.rs:118:7
Dec 13 22:49:05.179 INFO [stderr]     |
Dec 13 22:49:05.179 INFO [stderr] 118 |         for i in (0..=N) {
Dec 13 22:49:05.179 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 13 22:49:05.179 INFO [stderr]     |
Dec 13 22:49:05.179 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 13 22:49:05.179 INFO [stderr] 
Dec 13 22:49:05.179 INFO [stderr] warning: unused variable: `children`
Dec 13 22:49:05.179 INFO [stderr]    --> src/main.rs:219:7
Dec 13 22:49:05.179 INFO [stderr]     |
Dec 13 22:49:05.179 INFO [stderr] 219 |         let children = self.children();
Dec 13 22:49:05.179 INFO [stderr]     |             ^^^^^^^^ help: consider using `_children` instead
Dec 13 22:49:05.179 INFO [stderr] 
Dec 13 22:49:05.203 INFO [stderr] warning: method is never used: `n_queens_bestfs`
Dec 13 22:49:05.203 INFO [stderr]    --> src/main.rs:193:2
Dec 13 22:49:05.203 INFO [stderr]     |
Dec 13 22:49:05.203 INFO [stderr] 193 |     fn n_queens_bestfs(&self, n:i32) -> (Board, i32) {
Dec 13 22:49:05.203 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 22:49:05.203 INFO [stderr]     |
Dec 13 22:49:05.203 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 13 22:49:05.203 INFO [stderr] 
Dec 13 22:49:05.203 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:49:05.203 INFO [stderr]   --> src/main.rs:78:4
Dec 13 22:49:05.203 INFO [stderr]    |
Dec 13 22:49:05.203 INFO [stderr] 78 |             write!(f, "+---");
Dec 13 22:49:05.203 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 13 22:49:05.203 INFO [stderr]    |
Dec 13 22:49:05.203 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 22:49:05.203 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:49:05.203 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 13 22:49:05.203 INFO [stderr] 
Dec 13 22:49:05.203 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:49:05.203 INFO [stderr]   --> src/main.rs:81:3
Dec 13 22:49:05.203 INFO [stderr]    |
Dec 13 22:49:05.203 INFO [stderr] 81 |         write!(f, "+\n");
Dec 13 22:49:05.203 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 13 22:49:05.203 INFO [stderr]    |
Dec 13 22:49:05.203 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:49:05.203 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 13 22:49:05.203 INFO [stderr] 
Dec 13 22:49:05.203 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:49:05.203 INFO [stderr]   --> src/main.rs:86:6
Dec 13 22:49:05.203 INFO [stderr]    |
Dec 13 22:49:05.203 INFO [stderr] 86 |                     write!(f, "| Q ");
Dec 13 22:49:05.203 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^
Dec 13 22:49:05.203 INFO [stderr]    |
Dec 13 22:49:05.203 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:49:05.203 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 13 22:49:05.203 INFO [stderr] 
Dec 13 22:49:05.203 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:49:05.203 INFO [stderr]   --> src/main.rs:88:6
Dec 13 22:49:05.203 INFO [stderr]    |
Dec 13 22:49:05.204 INFO [stderr] 88 |                     write!(f, "|   ");
Dec 13 22:49:05.204 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^
Dec 13 22:49:05.204 INFO [stderr]    |
Dec 13 22:49:05.204 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:49:05.204 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 13 22:49:05.204 INFO [stderr] 
Dec 13 22:49:05.204 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:49:05.204 INFO [stderr]   --> src/main.rs:92:4
Dec 13 22:49:05.204 INFO [stderr]    |
Dec 13 22:49:05.204 INFO [stderr] 92 |             write!(f, "|\n");
Dec 13 22:49:05.204 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 13 22:49:05.204 INFO [stderr]    |
Dec 13 22:49:05.204 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:49:05.204 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 13 22:49:05.204 INFO [stderr] 
Dec 13 22:49:05.204 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:49:05.204 INFO [stderr]   --> src/main.rs:95:5
Dec 13 22:49:05.204 INFO [stderr]    |
Dec 13 22:49:05.204 INFO [stderr] 95 |                 write!(f, "+---");
Dec 13 22:49:05.204 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^
Dec 13 22:49:05.204 INFO [stderr]    |
Dec 13 22:49:05.204 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:49:05.204 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 13 22:49:05.204 INFO [stderr] 
Dec 13 22:49:05.204 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 22:49:05.204 INFO [stderr]   --> src/main.rs:97:4
Dec 13 22:49:05.204 INFO [stderr]    |
Dec 13 22:49:05.204 INFO [stderr] 97 |             write!(f, "+\n");
Dec 13 22:49:05.204 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 13 22:49:05.204 INFO [stderr]    |
Dec 13 22:49:05.204 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 22:49:05.204 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 13 22:49:05.204 INFO [stderr] 
Dec 13 22:49:05.204 INFO [stderr] warning: variable `startTime` should have a snake case name such as `start_time`
Dec 13 22:49:05.204 INFO [stderr]    --> src/main.rs:220:7
Dec 13 22:49:05.204 INFO [stderr]     |
Dec 13 22:49:05.204 INFO [stderr] 220 |         let startTime = Stopwatch::start_new();
Dec 13 22:49:05.204 INFO [stderr]     |             ^^^^^^^^^
Dec 13 22:49:05.204 INFO [stderr]     |
Dec 13 22:49:05.204 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 13 22:49:05.204 INFO [stderr] 
Dec 13 22:49:05.534 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
Dec 13 22:49:05.542 INFO [stderr] su: No module specific data is present
Dec 13 22:49:06.709 INFO running `"docker" "inspect" "40882a9e363b7232ec3fbfc053c4473b5b98f1eb494151fb1849e3a682688985"`
Dec 13 22:49:07.023 INFO running `"docker" "rm" "-f" "40882a9e363b7232ec3fbfc053c4473b5b98f1eb494151fb1849e3a682688985"`
Dec 13 22:49:07.327 INFO [stdout] 40882a9e363b7232ec3fbfc053c4473b5b98f1eb494151fb1849e3a682688985
Dec 13 22:49:07.334 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 22:49:07.830 INFO [stdout] 20ea4bdd84a4ef6f6527536761dde1d45ba6266c1a0a7d0dc8c87a02fe90dd4b
Dec 13 22:49:07.832 INFO running `"docker" "start" "-a" "20ea4bdd84a4ef6f6527536761dde1d45ba6266c1a0a7d0dc8c87a02fe90dd4b"`
Dec 13 22:49:08.851 INFO [stderr] usermod: no changes
Dec 13 22:49:08.919 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 13 22:49:08.930 INFO [stderr]      Running /target/debug/deps/nqueens_rs-290e24983b8f6a59
Dec 13 22:49:08.939 INFO [stderr] su: No module specific data is present
Dec 13 22:49:08.939 INFO [stdout] 
Dec 13 22:49:08.939 INFO [stdout] running 0 tests
Dec 13 22:49:08.939 INFO [stdout] 
Dec 13 22:49:08.939 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 22:49:08.939 INFO [stdout] 
Dec 13 22:49:09.372 INFO running `"docker" "inspect" "20ea4bdd84a4ef6f6527536761dde1d45ba6266c1a0a7d0dc8c87a02fe90dd4b"`
Dec 13 22:49:09.657 INFO running `"docker" "rm" "-f" "20ea4bdd84a4ef6f6527536761dde1d45ba6266c1a0a7d0dc8c87a02fe90dd4b"`
Dec 13 22:49:09.973 INFO [stdout] 20ea4bdd84a4ef6f6527536761dde1d45ba6266c1a0a7d0dc8c87a02fe90dd4b