[INFO] cloning repository https://github.com/funcnet/n_queens_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/funcnet/n_queens_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffuncnet%2Fn_queens_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffuncnet%2Fn_queens_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1e0730c503c298ece9fcfd433eb8f517d2645050 [INFO] testing funcnet/n_queens_rust against 1.86.0 for beta-1.87-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffuncnet%2Fn_queens_rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/funcnet/n_queens_rust on toolchain 1.86.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/funcnet/n_queens_rust [INFO] finished tweaking git repo https://github.com/funcnet/n_queens_rust [INFO] tweaked toml for git repo https://github.com/funcnet/n_queens_rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2e56ad37a0fd5985ae56a8d68dbffb8e91d92e85243406f186b85a8bfbfe66fa [INFO] running `Command { std: "docker" "start" "-a" "2e56ad37a0fd5985ae56a8d68dbffb8e91d92e85243406f186b85a8bfbfe66fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2e56ad37a0fd5985ae56a8d68dbffb8e91d92e85243406f186b85a8bfbfe66fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e56ad37a0fd5985ae56a8d68dbffb8e91d92e85243406f186b85a8bfbfe66fa", kill_on_drop: false }` [INFO] [stdout] 2e56ad37a0fd5985ae56a8d68dbffb8e91d92e85243406f186b85a8bfbfe66fa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a4fa2fb77af3b60235d9718df887ebf89329def4d3de06b1510d81f9c6374ef3 [INFO] running `Command { std: "docker" "start" "-a" "a4fa2fb77af3b60235d9718df887ebf89329def4d3de06b1510d81f9c6374ef3", kill_on_drop: false }` [INFO] [stderr] Compiling n_queens_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:54:36 [INFO] [stdout] | [INFO] [stdout] 54 | println!("{}: {}", COUNT, join_array(queen_list)) [INFO] [stdout] | ^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s [INFO] running `Command { std: "docker" "inspect" "a4fa2fb77af3b60235d9718df887ebf89329def4d3de06b1510d81f9c6374ef3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4fa2fb77af3b60235d9718df887ebf89329def4d3de06b1510d81f9c6374ef3", kill_on_drop: false }` [INFO] [stdout] a4fa2fb77af3b60235d9718df887ebf89329def4d3de06b1510d81f9c6374ef3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 686d874b6055f241d3ce805080ce03a53f82ff0884e757ca0f8e05e15932243e [INFO] running `Command { std: "docker" "start" "-a" "686d874b6055f241d3ce805080ce03a53f82ff0884e757ca0f8e05e15932243e", kill_on_drop: false }` [INFO] [stderr] Compiling n_queens_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:54:36 [INFO] [stdout] | [INFO] [stdout] 54 | println!("{}: {}", COUNT, join_array(queen_list)) [INFO] [stdout] | ^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s [INFO] running `Command { std: "docker" "inspect" "686d874b6055f241d3ce805080ce03a53f82ff0884e757ca0f8e05e15932243e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "686d874b6055f241d3ce805080ce03a53f82ff0884e757ca0f8e05e15932243e", kill_on_drop: false }` [INFO] [stdout] 686d874b6055f241d3ce805080ce03a53f82ff0884e757ca0f8e05e15932243e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 243faf77030ee6bd316096e303623cf3e14791551fe9a62e43f1f2c279076cdf [INFO] running `Command { std: "docker" "start" "-a" "243faf77030ee6bd316096e303623cf3e14791551fe9a62e43f1f2c279076cdf", kill_on_drop: false }` [INFO] [stderr] warning: creating a shared reference to mutable static is discouraged [INFO] [stderr] --> src/main.rs:54:36 [INFO] [stderr] | [INFO] [stderr] 54 | println!("{}: {}", COUNT, join_array(queen_list)) [INFO] [stderr] | ^^^^^ shared reference to mutable static [INFO] [stderr] | [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stderr] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `n_queens_rust` (bin "n_queens_rust" test) generated 1 warning [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/n_queens_rust-025e769ff145e506) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "243faf77030ee6bd316096e303623cf3e14791551fe9a62e43f1f2c279076cdf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "243faf77030ee6bd316096e303623cf3e14791551fe9a62e43f1f2c279076cdf", kill_on_drop: false }` [INFO] [stdout] 243faf77030ee6bd316096e303623cf3e14791551fe9a62e43f1f2c279076cdf