Nov 28 07:17:13.059 INFO checking csreid/nqueens-rs against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074 Nov 28 07:17:13.061 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-5/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 07:17:13.585 INFO [stdout] df8b3dfc0c2708414c89f5b94ea3362b985364ff7378fe90bec4044e22cc504a Nov 28 07:17:13.587 INFO running `"docker" "start" "-a" "df8b3dfc0c2708414c89f5b94ea3362b985364ff7378fe90bec4044e22cc504a"` Nov 28 07:17:15.712 INFO [stderr] usermod: no changes Nov 28 07:17:15.910 INFO [stderr] Checking stopwatch v0.0.7 Nov 28 07:17:17.028 INFO [stderr] Checking nqueens-rs v0.1.0 (/source) Nov 28 07:17:17.752 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:17.753 INFO [stderr] --> src/main.rs:118:12 Nov 28 07:17:17.753 INFO [stderr] | Nov 28 07:17:17.753 INFO [stderr] 118 | for i in (0..=N) { Nov 28 07:17:17.753 INFO [stderr] | ^^^^^^^ help: remove these parentheses Nov 28 07:17:17.753 INFO [stderr] | Nov 28 07:17:17.753 INFO [stderr] = note: #[warn(unused_parens)] on by default Nov 28 07:17:17.753 INFO [stderr] Nov 28 07:17:17.754 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:17.754 INFO [stderr] --> src/main.rs:119:13 Nov 28 07:17:17.754 INFO [stderr] | Nov 28 07:17:17.754 INFO [stderr] 119 | for j in (0..=N) { Nov 28 07:17:17.754 INFO [stderr] | ^^^^^^^ help: remove these parentheses Nov 28 07:17:17.754 INFO [stderr] Nov 28 07:17:17.755 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:17.755 INFO [stderr] --> src/main.rs:182:12 Nov 28 07:17:17.755 INFO [stderr] | Nov 28 07:17:17.755 INFO [stderr] 182 | for i in (0..N) { Nov 28 07:17:17.755 INFO [stderr] | ^^^^^^ help: remove these parentheses Nov 28 07:17:17.755 INFO [stderr] Nov 28 07:17:17.756 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:17.756 INFO [stderr] --> src/main.rs:183:13 Nov 28 07:17:17.756 INFO [stderr] | Nov 28 07:17:17.756 INFO [stderr] 183 | for j in (0..N) { Nov 28 07:17:17.756 INFO [stderr] | ^^^^^^ help: remove these parentheses Nov 28 07:17:17.756 INFO [stderr] Nov 28 07:17:17.757 INFO [stderr] warning: unnecessary parentheses around assigned value Nov 28 07:17:17.757 INFO [stderr] --> src/main.rs:245:13 Nov 28 07:17:17.757 INFO [stderr] | Nov 28 07:17:17.757 INFO [stderr] 245 | let time = (sw.elapsed_ms() as f64); Nov 28 07:17:17.757 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses Nov 28 07:17:17.757 INFO [stderr] Nov 28 07:17:17.860 INFO [stderr] warning: unused variable: `i` Nov 28 07:17:17.861 INFO [stderr] --> src/main.rs:118:7 Nov 28 07:17:17.861 INFO [stderr] | Nov 28 07:17:17.861 INFO [stderr] 118 | for i in (0..=N) { Nov 28 07:17:17.861 INFO [stderr] | ^ help: consider using `_i` instead Nov 28 07:17:17.861 INFO [stderr] | Nov 28 07:17:17.861 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 07:17:17.861 INFO [stderr] Nov 28 07:17:17.861 INFO [stderr] warning: unused variable: `children` Nov 28 07:17:17.862 INFO [stderr] --> src/main.rs:219:7 Nov 28 07:17:17.862 INFO [stderr] | Nov 28 07:17:17.862 INFO [stderr] 219 | let children = self.children(); Nov 28 07:17:17.862 INFO [stderr] | ^^^^^^^^ help: consider using `_children` instead Nov 28 07:17:17.862 INFO [stderr] Nov 28 07:17:17.892 INFO [stderr] warning: method is never used: `n_queens_bestfs` Nov 28 07:17:17.893 INFO [stderr] --> src/main.rs:193:2 Nov 28 07:17:17.893 INFO [stderr] | Nov 28 07:17:17.893 INFO [stderr] 193 | fn n_queens_bestfs(&self, n:i32) -> (Board, i32) { Nov 28 07:17:17.893 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.893 INFO [stderr] | Nov 28 07:17:17.893 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 07:17:17.894 INFO [stderr] Nov 28 07:17:17.894 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.894 INFO [stderr] --> src/main.rs:78:4 Nov 28 07:17:17.894 INFO [stderr] | Nov 28 07:17:17.894 INFO [stderr] 78 | write!(f, "+---"); Nov 28 07:17:17.894 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.894 INFO [stderr] | Nov 28 07:17:17.895 INFO [stderr] = note: #[warn(unused_must_use)] on by default Nov 28 07:17:17.895 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.895 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 07:17:17.895 INFO [stderr] Nov 28 07:17:17.895 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.895 INFO [stderr] --> src/main.rs:81:3 Nov 28 07:17:17.895 INFO [stderr] | Nov 28 07:17:17.895 INFO [stderr] 81 | write!(f, "+\n"); Nov 28 07:17:17.896 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.896 INFO [stderr] | Nov 28 07:17:17.896 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.896 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 07:17:17.896 INFO [stderr] Nov 28 07:17:17.896 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.896 INFO [stderr] --> src/main.rs:86:6 Nov 28 07:17:17.896 INFO [stderr] | Nov 28 07:17:17.897 INFO [stderr] 86 | write!(f, "| Q "); Nov 28 07:17:17.897 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.897 INFO [stderr] | Nov 28 07:17:17.897 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.897 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 07:17:17.897 INFO [stderr] Nov 28 07:17:17.897 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.898 INFO [stderr] --> src/main.rs:88:6 Nov 28 07:17:17.898 INFO [stderr] | Nov 28 07:17:17.898 INFO [stderr] 88 | write!(f, "| "); Nov 28 07:17:17.898 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.898 INFO [stderr] | Nov 28 07:17:17.898 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.899 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 07:17:17.899 INFO [stderr] Nov 28 07:17:17.899 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.899 INFO [stderr] --> src/main.rs:92:4 Nov 28 07:17:17.899 INFO [stderr] | Nov 28 07:17:17.899 INFO [stderr] 92 | write!(f, "|\n"); Nov 28 07:17:17.900 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.900 INFO [stderr] | Nov 28 07:17:17.900 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.900 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 07:17:17.900 INFO [stderr] Nov 28 07:17:17.900 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.900 INFO [stderr] --> src/main.rs:95:5 Nov 28 07:17:17.901 INFO [stderr] | Nov 28 07:17:17.901 INFO [stderr] 95 | write!(f, "+---"); Nov 28 07:17:17.901 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.901 INFO [stderr] | Nov 28 07:17:17.901 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.901 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 07:17:17.901 INFO [stderr] Nov 28 07:17:17.902 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:17.902 INFO [stderr] --> src/main.rs:97:4 Nov 28 07:17:17.902 INFO [stderr] | Nov 28 07:17:17.902 INFO [stderr] 97 | write!(f, "+\n"); Nov 28 07:17:17.902 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 28 07:17:17.902 INFO [stderr] | Nov 28 07:17:17.902 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:17.902 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 07:17:17.903 INFO [stderr] Nov 28 07:17:17.903 INFO [stderr] warning: variable `startTime` should have a snake case name such as `start_time` Nov 28 07:17:17.903 INFO [stderr] --> src/main.rs:220:7 Nov 28 07:17:17.903 INFO [stderr] | Nov 28 07:17:17.903 INFO [stderr] 220 | let startTime = Stopwatch::start_new(); Nov 28 07:17:17.903 INFO [stderr] | ^^^^^^^^^ Nov 28 07:17:17.903 INFO [stderr] | Nov 28 07:17:17.903 INFO [stderr] = note: #[warn(non_snake_case)] on by default Nov 28 07:17:17.904 INFO [stderr] Nov 28 07:17:17.936 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:17.937 INFO [stderr] --> src/main.rs:118:12 Nov 28 07:17:17.937 INFO [stderr] | Nov 28 07:17:17.937 INFO [stderr] 118 | for i in (0..=N) { Nov 28 07:17:17.937 INFO [stderr] | ^^^^^^^ help: remove these parentheses Nov 28 07:17:17.937 INFO [stderr] | Nov 28 07:17:17.937 INFO [stderr] = note: #[warn(unused_parens)] on by default Nov 28 07:17:17.937 INFO [stderr] Nov 28 07:17:17.938 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:17.938 INFO [stderr] --> src/main.rs:119:13 Nov 28 07:17:17.938 INFO [stderr] | Nov 28 07:17:17.938 INFO [stderr] 119 | for j in (0..=N) { Nov 28 07:17:17.938 INFO [stderr] | ^^^^^^^ help: remove these parentheses Nov 28 07:17:17.938 INFO [stderr] Nov 28 07:17:17.938 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:17.939 INFO [stderr] --> src/main.rs:182:12 Nov 28 07:17:17.939 INFO [stderr] | Nov 28 07:17:17.939 INFO [stderr] 182 | for i in (0..N) { Nov 28 07:17:17.939 INFO [stderr] | ^^^^^^ help: remove these parentheses Nov 28 07:17:17.939 INFO [stderr] Nov 28 07:17:17.939 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 28 07:17:17.939 INFO [stderr] --> src/main.rs:183:13 Nov 28 07:17:17.939 INFO [stderr] | Nov 28 07:17:17.940 INFO [stderr] 183 | for j in (0..N) { Nov 28 07:17:17.940 INFO [stderr] | ^^^^^^ help: remove these parentheses Nov 28 07:17:17.940 INFO [stderr] Nov 28 07:17:17.940 INFO [stderr] warning: unnecessary parentheses around assigned value Nov 28 07:17:17.940 INFO [stderr] --> src/main.rs:245:13 Nov 28 07:17:17.940 INFO [stderr] | Nov 28 07:17:17.940 INFO [stderr] 245 | let time = (sw.elapsed_ms() as f64); Nov 28 07:17:17.940 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses Nov 28 07:17:17.941 INFO [stderr] Nov 28 07:17:18.044 INFO [stderr] warning: unused variable: `i` Nov 28 07:17:18.045 INFO [stderr] --> src/main.rs:118:7 Nov 28 07:17:18.045 INFO [stderr] | Nov 28 07:17:18.045 INFO [stderr] 118 | for i in (0..=N) { Nov 28 07:17:18.045 INFO [stderr] | ^ help: consider using `_i` instead Nov 28 07:17:18.045 INFO [stderr] | Nov 28 07:17:18.045 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 07:17:18.046 INFO [stderr] Nov 28 07:17:18.046 INFO [stderr] warning: unused variable: `children` Nov 28 07:17:18.046 INFO [stderr] --> src/main.rs:219:7 Nov 28 07:17:18.046 INFO [stderr] | Nov 28 07:17:18.046 INFO [stderr] 219 | let children = self.children(); Nov 28 07:17:18.047 INFO [stderr] | ^^^^^^^^ help: consider using `_children` instead Nov 28 07:17:18.047 INFO [stderr] Nov 28 07:17:18.068 INFO [stderr] warning: method is never used: `n_queens_bestfs` Nov 28 07:17:18.069 INFO [stderr] --> src/main.rs:193:2 Nov 28 07:17:18.069 INFO [stderr] | Nov 28 07:17:18.069 INFO [stderr] 193 | fn n_queens_bestfs(&self, n:i32) -> (Board, i32) { Nov 28 07:17:18.069 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 07:17:18.069 INFO [stderr] | Nov 28 07:17:18.069 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 07:17:18.070 INFO [stderr] Nov 28 07:17:18.070 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:18.070 INFO [stderr] --> src/main.rs:78:4 Nov 28 07:17:18.070 INFO [stderr] | Nov 28 07:17:18.070 INFO [stderr] 78 | write!(f, "+---"); Nov 28 07:17:18.070 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:18.071 INFO [stderr] | Nov 28 07:17:18.071 INFO [stderr] = note: #[warn(unused_must_use)] on by default Nov 28 07:17:18.071 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:18.071 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 07:17:18.071 INFO [stderr] Nov 28 07:17:18.071 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:18.072 INFO [stderr] --> src/main.rs:81:3 Nov 28 07:17:18.072 INFO [stderr] | Nov 28 07:17:18.072 INFO [stderr] 81 | write!(f, "+\n"); Nov 28 07:17:18.072 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 28 07:17:18.072 INFO [stderr] | Nov 28 07:17:18.073 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:18.073 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 07:17:18.073 INFO [stderr] Nov 28 07:17:18.073 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:18.073 INFO [stderr] --> src/main.rs:86:6 Nov 28 07:17:18.073 INFO [stderr] | Nov 28 07:17:18.074 INFO [stderr] 86 | write!(f, "| Q "); Nov 28 07:17:18.074 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:18.074 INFO [stderr] | Nov 28 07:17:18.074 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:18.074 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 07:17:18.074 INFO [stderr] Nov 28 07:17:18.075 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:18.075 INFO [stderr] --> src/main.rs:88:6 Nov 28 07:17:18.075 INFO [stderr] | Nov 28 07:17:18.075 INFO [stderr] 88 | write!(f, "| "); Nov 28 07:17:18.075 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:18.076 INFO [stderr] | Nov 28 07:17:18.076 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:18.076 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 07:17:18.076 INFO [stderr] Nov 28 07:17:18.076 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:18.077 INFO [stderr] --> src/main.rs:92:4 Nov 28 07:17:18.077 INFO [stderr] | Nov 28 07:17:18.077 INFO [stderr] 92 | write!(f, "|\n"); Nov 28 07:17:18.077 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 28 07:17:18.077 INFO [stderr] | Nov 28 07:17:18.078 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:18.078 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 07:17:18.078 INFO [stderr] Nov 28 07:17:18.078 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:18.078 INFO [stderr] --> src/main.rs:95:5 Nov 28 07:17:18.078 INFO [stderr] | Nov 28 07:17:18.079 INFO [stderr] 95 | write!(f, "+---"); Nov 28 07:17:18.079 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:17:18.079 INFO [stderr] | Nov 28 07:17:18.079 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:18.079 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 07:17:18.079 INFO [stderr] Nov 28 07:17:18.080 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 28 07:17:18.080 INFO [stderr] --> src/main.rs:97:4 Nov 28 07:17:18.083 INFO [stderr] | Nov 28 07:17:18.084 INFO [stderr] 97 | write!(f, "+\n"); Nov 28 07:17:18.084 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 28 07:17:18.084 INFO [stderr] | Nov 28 07:17:18.084 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 28 07:17:18.084 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 07:17:18.084 INFO [stderr] Nov 28 07:17:18.085 INFO [stderr] warning: variable `startTime` should have a snake case name such as `start_time` Nov 28 07:17:18.085 INFO [stderr] --> src/main.rs:220:7 Nov 28 07:17:18.085 INFO [stderr] | Nov 28 07:17:18.085 INFO [stderr] 220 | let startTime = Stopwatch::start_new(); Nov 28 07:17:18.085 INFO [stderr] | ^^^^^^^^^ Nov 28 07:17:18.085 INFO [stderr] | Nov 28 07:17:18.085 INFO [stderr] = note: #[warn(non_snake_case)] on by default Nov 28 07:17:18.086 INFO [stderr] Nov 28 07:17:18.104 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.35s Nov 28 07:17:18.116 INFO [stderr] su: No module specific data is present Nov 28 07:17:18.826 INFO running `"docker" "inspect" "df8b3dfc0c2708414c89f5b94ea3362b985364ff7378fe90bec4044e22cc504a"` Nov 28 07:17:19.171 INFO running `"docker" "rm" "-f" "df8b3dfc0c2708414c89f5b94ea3362b985364ff7378fe90bec4044e22cc504a"` Nov 28 07:17:19.457 INFO [stdout] df8b3dfc0c2708414c89f5b94ea3362b985364ff7378fe90bec4044e22cc504a