Nov 28 07:17:12.435 INFO checking csreid/nqueens-rs against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074 Nov 28 07:17:12.437 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-0/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 07:17:12.921 INFO [stdout] f8676d6944e2716f307da7b528957e208e466f9697db64a82e5486426360bbe5 Nov 28 07:17:12.921 INFO running `"docker" "start" "-a" "f8676d6944e2716f307da7b528957e208e466f9697db64a82e5486426360bbe5"` Nov 28 07:17:14.568 INFO [stderr] usermod: no changes Nov 28 07:17:14.672 INFO [stderr] Checking stopwatch v0.0.7 Nov 28 07:17:15.624 INFO [stderr] Checking nqueens-rs v0.1.0 (/source) Nov 28 07:17:16.513 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:16.513 INFO [stderr] --> src/main.rs:118:12 Nov 28 07:17:16.513 INFO [stderr] | Nov 28 07:17:16.514 INFO [stderr] 118 | for i in (0..=N) { Nov 28 07:17:16.514 INFO [stderr] | ^^^^^^^ help: remove these parentheses Nov 28 07:17:16.515 INFO [stderr] | Nov 28 07:17:16.515 INFO [stderr] = note: #[warn(unused_parens)] on by default Nov 28 07:17:16.516 INFO [stderr] Nov 28 07:17:16.516 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:16.517 INFO [stderr] --> src/main.rs:119:13 Nov 28 07:17:16.517 INFO [stderr] | Nov 28 07:17:16.518 INFO [stderr] 119 | for j in (0..=N) { Nov 28 07:17:16.518 INFO [stderr] | ^^^^^^^ help: remove these parentheses Nov 28 07:17:16.519 INFO [stderr] Nov 28 07:17:16.519 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:16.520 INFO [stderr] --> src/main.rs:182:12 Nov 28 07:17:16.520 INFO [stderr] | Nov 28 07:17:16.520 INFO [stderr] 182 | for i in (0..N) { Nov 28 07:17:16.520 INFO [stderr] | ^^^^^^ help: remove these parentheses Nov 28 07:17:16.521 INFO [stderr] Nov 28 07:17:16.521 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:16.522 INFO [stderr] --> src/main.rs:183:13 Nov 28 07:17:16.522 INFO [stderr] | Nov 28 07:17:16.522 INFO [stderr] 183 | for j in (0..N) { Nov 28 07:17:16.523 INFO [stderr] | ^^^^^^ help: remove these parentheses Nov 28 07:17:16.523 INFO [stderr] Nov 28 07:17:16.529 INFO [stderr] warning: unnecessary parentheses around assigned value Nov 28 07:17:16.529 INFO [stderr] --> src/main.rs:245:13 Nov 28 07:17:16.529 INFO [stderr] | Nov 28 07:17:16.529 INFO [stderr] 245 | let time = (sw.elapsed_ms() as f64); Nov 28 07:17:16.529 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses Nov 28 07:17:16.530 INFO [stderr] Nov 28 07:17:16.643 INFO [stderr] warning: unused variable: `i` Nov 28 07:17:16.649 INFO [stderr] --> src/main.rs:118:7 Nov 28 07:17:16.650 INFO [stderr] | Nov 28 07:17:16.657 INFO [stderr] 118 | for i in (0..=N) { Nov 28 07:17:16.657 INFO [stderr] | ^ help: consider using `_i` instead Nov 28 07:17:16.657 INFO [stderr] | Nov 28 07:17:16.657 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 07:17:16.658 INFO [stderr] Nov 28 07:17:16.658 INFO [stderr] warning: unused variable: `children` Nov 28 07:17:16.658 INFO [stderr] --> src/main.rs:219:7 Nov 28 07:17:16.659 INFO [stderr] | Nov 28 07:17:16.659 INFO [stderr] 219 | let children = self.children(); Nov 28 07:17:16.659 INFO [stderr] | ^^^^^^^^ help: consider using `_children` instead Nov 28 07:17:16.660 INFO [stderr] Nov 28 07:17:16.666 INFO [stderr] warning: method is never used: `n_queens_bestfs` Nov 28 07:17:16.666 INFO [stderr] --> src/main.rs:193:2 Nov 28 07:17:16.667 INFO [stderr] | Nov 28 07:17:16.668 INFO [stderr] 193 | fn n_queens_bestfs(&self, n:i32) -> (Board, i32) { Nov 28 07:17:16.668 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 07:17:16.669 INFO [stderr] | Nov 28 07:17:16.669 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 07:17:16.669 INFO [stderr] Nov 28 07:17:16.669 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:16.670 INFO [stderr] --> src/main.rs:78:4 Nov 28 07:17:16.670 INFO [stderr] | Nov 28 07:17:16.670 INFO [stderr] 78 | write!(f, "+---"); Nov 28 07:17:16.670 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:16.670 INFO [stderr] | Nov 28 07:17:16.671 INFO [stderr] = note: #[warn(unused_must_use)] on by default Nov 28 07:17:16.671 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:16.671 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 07:17:16.672 INFO [stderr] Nov 28 07:17:16.672 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:16.672 INFO [stderr] --> src/main.rs:81:3 Nov 28 07:17:16.672 INFO [stderr] | Nov 28 07:17:16.673 INFO [stderr] 81 | write!(f, "+\n"); Nov 28 07:17:16.673 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 28 07:17:16.673 INFO [stderr] | Nov 28 07:17:16.673 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:16.674 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 07:17:16.674 INFO [stderr] Nov 28 07:17:16.674 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:16.674 INFO [stderr] --> src/main.rs:86:6 Nov 28 07:17:16.675 INFO [stderr] | Nov 28 07:17:16.675 INFO [stderr] 86 | write!(f, "| Q "); Nov 28 07:17:16.675 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:16.675 INFO [stderr] | Nov 28 07:17:16.676 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:16.676 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 07:17:16.676 INFO [stderr] Nov 28 07:17:16.676 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:16.677 INFO [stderr] --> src/main.rs:88:6 Nov 28 07:17:16.677 INFO [stderr] | Nov 28 07:17:16.677 INFO [stderr] 88 | write!(f, "| "); Nov 28 07:17:16.678 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:16.678 INFO [stderr] | Nov 28 07:17:16.678 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:16.678 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 07:17:16.679 INFO [stderr] Nov 28 07:17:16.679 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:16.679 INFO [stderr] --> src/main.rs:92:4 Nov 28 07:17:16.679 INFO [stderr] | Nov 28 07:17:16.680 INFO [stderr] 92 | write!(f, "|\n"); Nov 28 07:17:16.680 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 28 07:17:16.680 INFO [stderr] | Nov 28 07:17:16.680 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:16.681 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 07:17:16.681 INFO [stderr] Nov 28 07:17:16.681 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:16.682 INFO [stderr] --> src/main.rs:95:5 Nov 28 07:17:16.682 INFO [stderr] | Nov 28 07:17:16.682 INFO [stderr] 95 | write!(f, "+---"); Nov 28 07:17:16.682 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:16.682 INFO [stderr] | Nov 28 07:17:16.683 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:16.683 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 07:17:16.683 INFO [stderr] Nov 28 07:17:16.683 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:16.684 INFO [stderr] --> src/main.rs:97:4 Nov 28 07:17:16.684 INFO [stderr] | Nov 28 07:17:16.684 INFO [stderr] 97 | write!(f, "+\n"); Nov 28 07:17:16.684 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 28 07:17:16.685 INFO [stderr] | Nov 28 07:17:16.685 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:16.685 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 07:17:16.685 INFO [stderr] Nov 28 07:17:16.686 INFO [stderr] warning: variable `startTime` should have a snake case name such as `start_time` Nov 28 07:17:16.686 INFO [stderr] --> src/main.rs:220:7 Nov 28 07:17:16.686 INFO [stderr] | Nov 28 07:17:16.686 INFO [stderr] 220 | let startTime = Stopwatch::start_new(); Nov 28 07:17:16.687 INFO [stderr] | ^^^^^^^^^ Nov 28 07:17:16.687 INFO [stderr] | Nov 28 07:17:16.687 INFO [stderr] = note: #[warn(non_snake_case)] on by default Nov 28 07:17:16.687 INFO [stderr] Nov 28 07:17:16.848 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:16.848 INFO [stderr] --> src/main.rs:118:12 Nov 28 07:17:16.848 INFO [stderr] | Nov 28 07:17:16.848 INFO [stderr] 118 | for i in (0..=N) { Nov 28 07:17:16.849 INFO [stderr] | ^^^^^^^ help: remove these parentheses Nov 28 07:17:16.849 INFO [stderr] | Nov 28 07:17:16.849 INFO [stderr] = note: #[warn(unused_parens)] on by default Nov 28 07:17:16.849 INFO [stderr] Nov 28 07:17:16.849 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:16.849 INFO [stderr] --> src/main.rs:119:13 Nov 28 07:17:16.849 INFO [stderr] | Nov 28 07:17:16.849 INFO [stderr] 119 | for j in (0..=N) { Nov 28 07:17:16.849 INFO [stderr] | ^^^^^^^ help: remove these parentheses Nov 28 07:17:16.849 INFO [stderr] Nov 28 07:17:16.849 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:16.849 INFO [stderr] --> src/main.rs:182:12 Nov 28 07:17:16.849 INFO [stderr] | Nov 28 07:17:16.849 INFO [stderr] 182 | for i in (0..N) { Nov 28 07:17:16.849 INFO [stderr] | ^^^^^^ help: remove these parentheses Nov 28 07:17:16.849 INFO [stderr] Nov 28 07:17:16.849 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:16.850 INFO [stderr] --> src/main.rs:183:13 Nov 28 07:17:16.850 INFO [stderr] | Nov 28 07:17:16.850 INFO [stderr] 183 | for j in (0..N) { Nov 28 07:17:16.850 INFO [stderr] | ^^^^^^ help: remove these parentheses Nov 28 07:17:16.850 INFO [stderr] Nov 28 07:17:16.850 INFO [stderr] warning: unnecessary parentheses around assigned value Nov 28 07:17:16.850 INFO [stderr] --> src/main.rs:245:13 Nov 28 07:17:16.850 INFO [stderr] | Nov 28 07:17:16.850 INFO [stderr] 245 | let time = (sw.elapsed_ms() as f64); Nov 28 07:17:16.850 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses Nov 28 07:17:16.850 INFO [stderr] Nov 28 07:17:16.977 INFO [stderr] warning: unused variable: `i` Nov 28 07:17:16.978 INFO [stderr] --> src/main.rs:118:7 Nov 28 07:17:16.978 INFO [stderr] | Nov 28 07:17:16.978 INFO [stderr] 118 | for i in (0..=N) { Nov 28 07:17:16.979 INFO [stderr] | ^ help: consider using `_i` instead Nov 28 07:17:16.979 INFO [stderr] | Nov 28 07:17:16.979 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 07:17:16.979 INFO [stderr] Nov 28 07:17:16.980 INFO [stderr] warning: unused variable: `children` Nov 28 07:17:16.980 INFO [stderr] --> src/main.rs:219:7 Nov 28 07:17:16.980 INFO [stderr] | Nov 28 07:17:16.981 INFO [stderr] 219 | let children = self.children(); Nov 28 07:17:16.981 INFO [stderr] | ^^^^^^^^ help: consider using `_children` instead Nov 28 07:17:16.981 INFO [stderr] Nov 28 07:17:17.000 INFO [stderr] warning: method is never used: `n_queens_bestfs` Nov 28 07:17:17.001 INFO [stderr] --> src/main.rs:193:2 Nov 28 07:17:17.001 INFO [stderr] | Nov 28 07:17:17.001 INFO [stderr] 193 | fn n_queens_bestfs(&self, n:i32) -> (Board, i32) { Nov 28 07:17:17.002 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.002 INFO [stderr] | Nov 28 07:17:17.002 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 07:17:17.002 INFO [stderr] Nov 28 07:17:17.003 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.003 INFO [stderr] --> src/main.rs:78:4 Nov 28 07:17:17.003 INFO [stderr] | Nov 28 07:17:17.003 INFO [stderr] 78 | write!(f, "+---"); Nov 28 07:17:17.004 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.004 INFO [stderr] | Nov 28 07:17:17.004 INFO [stderr] = note: #[warn(unused_must_use)] on by default Nov 28 07:17:17.004 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.005 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 07:17:17.005 INFO [stderr] Nov 28 07:17:17.005 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.005 INFO [stderr] --> src/main.rs:81:3 Nov 28 07:17:17.006 INFO [stderr] | Nov 28 07:17:17.006 INFO [stderr] 81 | write!(f, "+\n"); Nov 28 07:17:17.006 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.006 INFO [stderr] | Nov 28 07:17:17.007 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.007 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 07:17:17.007 INFO [stderr] Nov 28 07:17:17.007 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.007 INFO [stderr] --> src/main.rs:86:6 Nov 28 07:17:17.008 INFO [stderr] | Nov 28 07:17:17.008 INFO [stderr] 86 | write!(f, "| Q "); Nov 28 07:17:17.008 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.008 INFO [stderr] | Nov 28 07:17:17.009 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.009 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 07:17:17.009 INFO [stderr] Nov 28 07:17:17.010 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.010 INFO [stderr] --> src/main.rs:88:6 Nov 28 07:17:17.010 INFO [stderr] | Nov 28 07:17:17.010 INFO [stderr] 88 | write!(f, "| "); Nov 28 07:17:17.010 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.011 INFO [stderr] | Nov 28 07:17:17.011 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.011 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 07:17:17.011 INFO [stderr] Nov 28 07:17:17.012 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.016 INFO [stderr] --> src/main.rs:92:4 Nov 28 07:17:17.016 INFO [stderr] | Nov 28 07:17:17.017 INFO [stderr] 92 | write!(f, "|\n"); Nov 28 07:17:17.017 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.017 INFO [stderr] | Nov 28 07:17:17.017 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.018 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 07:17:17.018 INFO [stderr] Nov 28 07:17:17.019 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.019 INFO [stderr] --> src/main.rs:95:5 Nov 28 07:17:17.019 INFO [stderr] | Nov 28 07:17:17.019 INFO [stderr] 95 | write!(f, "+---"); Nov 28 07:17:17.020 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.020 INFO [stderr] | Nov 28 07:17:17.020 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.020 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 07:17:17.021 INFO [stderr] Nov 28 07:17:17.021 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.021 INFO [stderr] --> src/main.rs:97:4 Nov 28 07:17:17.022 INFO [stderr] | Nov 28 07:17:17.022 INFO [stderr] 97 | write!(f, "+\n"); Nov 28 07:17:17.022 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.022 INFO [stderr] | Nov 28 07:17:17.023 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.023 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 07:17:17.023 INFO [stderr] Nov 28 07:17:17.023 INFO [stderr] warning: variable `startTime` should have a snake case name such as `start_time` Nov 28 07:17:17.024 INFO [stderr] --> src/main.rs:220:7 Nov 28 07:17:17.024 INFO [stderr] | Nov 28 07:17:17.024 INFO [stderr] 220 | let startTime = Stopwatch::start_new(); Nov 28 07:17:17.025 INFO [stderr] | ^^^^^^^^^ Nov 28 07:17:17.025 INFO [stderr] | Nov 28 07:17:17.025 INFO [stderr] = note: #[warn(non_snake_case)] on by default Nov 28 07:17:17.025 INFO [stderr] Nov 28 07:17:17.036 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.43s Nov 28 07:17:17.040 INFO [stderr] su: No module specific data is present Nov 28 07:17:18.336 INFO running `"docker" "inspect" "f8676d6944e2716f307da7b528957e208e466f9697db64a82e5486426360bbe5"` Nov 28 07:17:18.680 INFO running `"docker" "rm" "-f" "f8676d6944e2716f307da7b528957e208e466f9697db64a82e5486426360bbe5"` Nov 28 07:17:19.100 INFO [stdout] f8676d6944e2716f307da7b528957e208e466f9697db64a82e5486426360bbe5