Nov 30 04:51:17.674 INFO checking csreid/nqueens-rs against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323 Nov 30 04:51:17.674 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-5/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 04:51:18.072 INFO [stdout] 18dca5c6b36f5931fd30d2dc70670aac042813dac130c08852f510654efc3d25 Nov 30 04:51:18.084 INFO running `"docker" "start" "-a" "18dca5c6b36f5931fd30d2dc70670aac042813dac130c08852f510654efc3d25"` Nov 30 04:51:19.220 INFO [stderr] usermod: no changes Nov 30 04:51:19.304 INFO [stderr] Checking stopwatch v0.0.7 Nov 30 04:51:20.121 INFO [stderr] Checking nqueens-rs v0.1.0 (/source) Nov 30 04:51:21.020 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 30 04:51:21.021 INFO [stderr] --> src/main.rs:118:12 Nov 30 04:51:21.021 INFO [stderr] | Nov 30 04:51:21.021 INFO [stderr] 118 | for i in (0..=N) { Nov 30 04:51:21.021 INFO [stderr] | ^^^^^^^ help: remove these parentheses Nov 30 04:51:21.021 INFO [stderr] | Nov 30 04:51:21.021 INFO [stderr] = note: #[warn(unused_parens)] on by default Nov 30 04:51:21.021 INFO [stderr] Nov 30 04:51:21.021 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 30 04:51:21.021 INFO [stderr] --> src/main.rs:119:13 Nov 30 04:51:21.021 INFO [stderr] | Nov 30 04:51:21.021 INFO [stderr] 119 | for j in (0..=N) { Nov 30 04:51:21.021 INFO [stderr] | ^^^^^^^ help: remove these parentheses Nov 30 04:51:21.021 INFO [stderr] Nov 30 04:51:21.021 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 30 04:51:21.021 INFO [stderr] --> src/main.rs:182:12 Nov 30 04:51:21.021 INFO [stderr] | Nov 30 04:51:21.021 INFO [stderr] 182 | for i in (0..N) { Nov 30 04:51:21.021 INFO [stderr] | ^^^^^^ help: remove these parentheses Nov 30 04:51:21.021 INFO [stderr] Nov 30 04:51:21.021 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 30 04:51:21.021 INFO [stderr] --> src/main.rs:183:13 Nov 30 04:51:21.021 INFO [stderr] | Nov 30 04:51:21.021 INFO [stderr] 183 | for j in (0..N) { Nov 30 04:51:21.021 INFO [stderr] | ^^^^^^ help: remove these parentheses Nov 30 04:51:21.021 INFO [stderr] Nov 30 04:51:21.021 INFO [stderr] warning: unnecessary parentheses around assigned value Nov 30 04:51:21.021 INFO [stderr] --> src/main.rs:245:13 Nov 30 04:51:21.021 INFO [stderr] | Nov 30 04:51:21.021 INFO [stderr] 245 | let time = (sw.elapsed_ms() as f64); Nov 30 04:51:21.021 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses Nov 30 04:51:21.021 INFO [stderr] Nov 30 04:51:21.090 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 30 04:51:21.090 INFO [stderr] --> src/main.rs:118:12 Nov 30 04:51:21.090 INFO [stderr] | Nov 30 04:51:21.090 INFO [stderr] 118 | for i in (0..=N) { Nov 30 04:51:21.090 INFO [stderr] | ^^^^^^^ help: remove these parentheses Nov 30 04:51:21.091 INFO [stderr] | Nov 30 04:51:21.091 INFO [stderr] = note: #[warn(unused_parens)] on by default Nov 30 04:51:21.091 INFO [stderr] Nov 30 04:51:21.091 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 30 04:51:21.091 INFO [stderr] --> src/main.rs:119:13 Nov 30 04:51:21.091 INFO [stderr] | Nov 30 04:51:21.091 INFO [stderr] 119 | for j in (0..=N) { Nov 30 04:51:21.091 INFO [stderr] | ^^^^^^^ help: remove these parentheses Nov 30 04:51:21.091 INFO [stderr] Nov 30 04:51:21.091 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 30 04:51:21.091 INFO [stderr] --> src/main.rs:182:12 Nov 30 04:51:21.091 INFO [stderr] | Nov 30 04:51:21.091 INFO [stderr] 182 | for i in (0..N) { Nov 30 04:51:21.091 INFO [stderr] | ^^^^^^ help: remove these parentheses Nov 30 04:51:21.091 INFO [stderr] Nov 30 04:51:21.091 INFO [stderr] warning: unnecessary parentheses around `for` head expression Nov 30 04:51:21.091 INFO [stderr] --> src/main.rs:183:13 Nov 30 04:51:21.091 INFO [stderr] | Nov 30 04:51:21.091 INFO [stderr] 183 | for j in (0..N) { Nov 30 04:51:21.091 INFO [stderr] | ^^^^^^ help: remove these parentheses Nov 30 04:51:21.091 INFO [stderr] Nov 30 04:51:21.091 INFO [stderr] warning: unnecessary parentheses around assigned value Nov 30 04:51:21.091 INFO [stderr] --> src/main.rs:245:13 Nov 30 04:51:21.091 INFO [stderr] | Nov 30 04:51:21.091 INFO [stderr] 245 | let time = (sw.elapsed_ms() as f64); Nov 30 04:51:21.091 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses Nov 30 04:51:21.091 INFO [stderr] Nov 30 04:51:21.204 INFO [stderr] warning: unused variable: `i` Nov 30 04:51:21.205 INFO [stderr] --> src/main.rs:118:7 Nov 30 04:51:21.205 INFO [stderr] | Nov 30 04:51:21.205 INFO [stderr] 118 | for i in (0..=N) { Nov 30 04:51:21.205 INFO [stderr] | ^ help: consider using `_i` instead Nov 30 04:51:21.205 INFO [stderr] | Nov 30 04:51:21.206 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 30 04:51:21.206 INFO [stderr] Nov 30 04:51:21.206 INFO [stderr] warning: unused variable: `children` Nov 30 04:51:21.206 INFO [stderr] --> src/main.rs:219:7 Nov 30 04:51:21.206 INFO [stderr] | Nov 30 04:51:21.207 INFO [stderr] 219 | let children = self.children(); Nov 30 04:51:21.207 INFO [stderr] | ^^^^^^^^ help: consider using `_children` instead Nov 30 04:51:21.207 INFO [stderr] Nov 30 04:51:21.247 INFO [stderr] warning: method is never used: `n_queens_bestfs` Nov 30 04:51:21.247 INFO [stderr] --> src/main.rs:193:2 Nov 30 04:51:21.247 INFO [stderr] | Nov 30 04:51:21.247 INFO [stderr] 193 | fn n_queens_bestfs(&self, n:i32) -> (Board, i32) { Nov 30 04:51:21.248 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.248 INFO [stderr] | Nov 30 04:51:21.248 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 30 04:51:21.249 INFO [stderr] Nov 30 04:51:21.250 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.250 INFO [stderr] --> src/main.rs:78:4 Nov 30 04:51:21.250 INFO [stderr] | Nov 30 04:51:21.250 INFO [stderr] 78 | write!(f, "+---"); Nov 30 04:51:21.251 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.251 INFO [stderr] | Nov 30 04:51:21.251 INFO [stderr] = note: #[warn(unused_must_use)] on by default Nov 30 04:51:21.252 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.252 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 30 04:51:21.252 INFO [stderr] Nov 30 04:51:21.253 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.253 INFO [stderr] --> src/main.rs:81:3 Nov 30 04:51:21.253 INFO [stderr] | Nov 30 04:51:21.254 INFO [stderr] 81 | write!(f, "+\n"); Nov 30 04:51:21.254 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.254 INFO [stderr] | Nov 30 04:51:21.255 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.255 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 30 04:51:21.255 INFO [stderr] Nov 30 04:51:21.256 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.256 INFO [stderr] --> src/main.rs:86:6 Nov 30 04:51:21.256 INFO [stderr] | Nov 30 04:51:21.256 INFO [stderr] 86 | write!(f, "| Q "); Nov 30 04:51:21.257 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.257 INFO [stderr] | Nov 30 04:51:21.257 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.258 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 30 04:51:21.258 INFO [stderr] Nov 30 04:51:21.258 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.258 INFO [stderr] --> src/main.rs:88:6 Nov 30 04:51:21.259 INFO [stderr] | Nov 30 04:51:21.259 INFO [stderr] 88 | write!(f, "| "); Nov 30 04:51:21.259 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.259 INFO [stderr] | Nov 30 04:51:21.260 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.260 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 30 04:51:21.260 INFO [stderr] Nov 30 04:51:21.261 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.261 INFO [stderr] --> src/main.rs:92:4 Nov 30 04:51:21.261 INFO [stderr] | Nov 30 04:51:21.262 INFO [stderr] 92 | write!(f, "|\n"); Nov 30 04:51:21.262 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.262 INFO [stderr] | Nov 30 04:51:21.263 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.263 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 30 04:51:21.263 INFO [stderr] Nov 30 04:51:21.264 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.264 INFO [stderr] --> src/main.rs:95:5 Nov 30 04:51:21.264 INFO [stderr] | Nov 30 04:51:21.264 INFO [stderr] 95 | write!(f, "+---"); Nov 30 04:51:21.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.265 INFO [stderr] | Nov 30 04:51:21.265 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.266 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 30 04:51:21.266 INFO [stderr] Nov 30 04:51:21.266 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.267 INFO [stderr] --> src/main.rs:97:4 Nov 30 04:51:21.267 INFO [stderr] | Nov 30 04:51:21.267 INFO [stderr] 97 | write!(f, "+\n"); Nov 30 04:51:21.268 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.268 INFO [stderr] | Nov 30 04:51:21.268 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.268 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 30 04:51:21.269 INFO [stderr] Nov 30 04:51:21.269 INFO [stderr] warning: variable `startTime` should have a snake case name such as `start_time` Nov 30 04:51:21.270 INFO [stderr] --> src/main.rs:220:7 Nov 30 04:51:21.270 INFO [stderr] | Nov 30 04:51:21.270 INFO [stderr] 220 | let startTime = Stopwatch::start_new(); Nov 30 04:51:21.270 INFO [stderr] | ^^^^^^^^^ Nov 30 04:51:21.271 INFO [stderr] | Nov 30 04:51:21.271 INFO [stderr] = note: #[warn(non_snake_case)] on by default Nov 30 04:51:21.271 INFO [stderr] Nov 30 04:51:21.334 INFO [stderr] warning: unused variable: `i` Nov 30 04:51:21.335 INFO [stderr] --> src/main.rs:118:7 Nov 30 04:51:21.335 INFO [stderr] | Nov 30 04:51:21.335 INFO [stderr] 118 | for i in (0..=N) { Nov 30 04:51:21.335 INFO [stderr] | ^ help: consider using `_i` instead Nov 30 04:51:21.336 INFO [stderr] | Nov 30 04:51:21.336 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 30 04:51:21.336 INFO [stderr] Nov 30 04:51:21.336 INFO [stderr] warning: unused variable: `children` Nov 30 04:51:21.337 INFO [stderr] --> src/main.rs:219:7 Nov 30 04:51:21.337 INFO [stderr] | Nov 30 04:51:21.337 INFO [stderr] 219 | let children = self.children(); Nov 30 04:51:21.338 INFO [stderr] | ^^^^^^^^ help: consider using `_children` instead Nov 30 04:51:21.338 INFO [stderr] Nov 30 04:51:21.367 INFO [stderr] warning: method is never used: `n_queens_bestfs` Nov 30 04:51:21.368 INFO [stderr] --> src/main.rs:193:2 Nov 30 04:51:21.368 INFO [stderr] | Nov 30 04:51:21.368 INFO [stderr] 193 | fn n_queens_bestfs(&self, n:i32) -> (Board, i32) { Nov 30 04:51:21.368 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.369 INFO [stderr] | Nov 30 04:51:21.369 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 30 04:51:21.369 INFO [stderr] Nov 30 04:51:21.369 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.370 INFO [stderr] --> src/main.rs:78:4 Nov 30 04:51:21.370 INFO [stderr] | Nov 30 04:51:21.370 INFO [stderr] 78 | write!(f, "+---"); Nov 30 04:51:21.371 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.371 INFO [stderr] | Nov 30 04:51:21.371 INFO [stderr] = note: #[warn(unused_must_use)] on by default Nov 30 04:51:21.371 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.372 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 30 04:51:21.372 INFO [stderr] Nov 30 04:51:21.372 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.372 INFO [stderr] --> src/main.rs:81:3 Nov 30 04:51:21.373 INFO [stderr] | Nov 30 04:51:21.373 INFO [stderr] 81 | write!(f, "+\n"); Nov 30 04:51:21.373 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.373 INFO [stderr] | Nov 30 04:51:21.374 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.374 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 30 04:51:21.374 INFO [stderr] Nov 30 04:51:21.374 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.375 INFO [stderr] --> src/main.rs:86:6 Nov 30 04:51:21.375 INFO [stderr] | Nov 30 04:51:21.375 INFO [stderr] 86 | write!(f, "| Q "); Nov 30 04:51:21.376 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.376 INFO [stderr] | Nov 30 04:51:21.376 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.376 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 30 04:51:21.376 INFO [stderr] Nov 30 04:51:21.377 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.377 INFO [stderr] --> src/main.rs:88:6 Nov 30 04:51:21.377 INFO [stderr] | Nov 30 04:51:21.377 INFO [stderr] 88 | write!(f, "| "); Nov 30 04:51:21.378 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.378 INFO [stderr] | Nov 30 04:51:21.378 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.378 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 30 04:51:21.378 INFO [stderr] Nov 30 04:51:21.392 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.393 INFO [stderr] --> src/main.rs:92:4 Nov 30 04:51:21.393 INFO [stderr] | Nov 30 04:51:21.393 INFO [stderr] 92 | write!(f, "|\n"); Nov 30 04:51:21.393 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.393 INFO [stderr] | Nov 30 04:51:21.394 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.394 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 30 04:51:21.394 INFO [stderr] Nov 30 04:51:21.394 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.394 INFO [stderr] --> src/main.rs:95:5 Nov 30 04:51:21.395 INFO [stderr] | Nov 30 04:51:21.395 INFO [stderr] 95 | write!(f, "+---"); Nov 30 04:51:21.395 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.395 INFO [stderr] | Nov 30 04:51:21.396 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.396 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 30 04:51:21.396 INFO [stderr] Nov 30 04:51:21.396 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 04:51:21.396 INFO [stderr] --> src/main.rs:97:4 Nov 30 04:51:21.397 INFO [stderr] | Nov 30 04:51:21.397 INFO [stderr] 97 | write!(f, "+\n"); Nov 30 04:51:21.397 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 30 04:51:21.397 INFO [stderr] | Nov 30 04:51:21.397 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 04:51:21.398 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 30 04:51:21.398 INFO [stderr] Nov 30 04:51:21.398 INFO [stderr] warning: variable `startTime` should have a snake case name such as `start_time` Nov 30 04:51:21.398 INFO [stderr] --> src/main.rs:220:7 Nov 30 04:51:21.399 INFO [stderr] | Nov 30 04:51:21.399 INFO [stderr] 220 | let startTime = Stopwatch::start_new(); Nov 30 04:51:21.399 INFO [stderr] | ^^^^^^^^^ Nov 30 04:51:21.399 INFO [stderr] | Nov 30 04:51:21.399 INFO [stderr] = note: #[warn(non_snake_case)] on by default Nov 30 04:51:21.399 INFO [stderr] Nov 30 04:51:21.436 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.19s Nov 30 04:51:21.439 INFO [stderr] su: No module specific data is present Nov 30 04:51:22.627 INFO running `"docker" "inspect" "18dca5c6b36f5931fd30d2dc70670aac042813dac130c08852f510654efc3d25"` Nov 30 04:51:23.002 INFO running `"docker" "rm" "-f" "18dca5c6b36f5931fd30d2dc70670aac042813dac130c08852f510654efc3d25"` Nov 30 04:51:23.384 INFO [stdout] 18dca5c6b36f5931fd30d2dc70670aac042813dac130c08852f510654efc3d25