[INFO] cloning repository https://github.com/GTxx/learn_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GTxx/learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGTxx%2Flearn_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGTxx%2Flearn_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b4dc2ad0d71f20b8eb03792f5b8269ce8d7cb321 [INFO] checking GTxx/learn_rust against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGTxx%2Flearn_rust" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/GTxx/learn_rust on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/GTxx/learn_rust [INFO] finished tweaking git repo https://github.com/GTxx/learn_rust [INFO] tweaked toml for git repo https://github.com/GTxx/learn_rust written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/GTxx/learn_rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 01b2b0b283e8fe8a4b3d0ec19ecb4bae4ec05354c91364e0d744a5fd73b348e2 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "01b2b0b283e8fe8a4b3d0ec19ecb4bae4ec05354c91364e0d744a5fd73b348e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "01b2b0b283e8fe8a4b3d0ec19ecb4bae4ec05354c91364e0d744a5fd73b348e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "01b2b0b283e8fe8a4b3d0ec19ecb4bae4ec05354c91364e0d744a5fd73b348e2", kill_on_drop: false }` [INFO] [stdout] 01b2b0b283e8fe8a4b3d0ec19ecb4bae4ec05354c91364e0d744a5fd73b348e2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3cb53f29094892193ef3f1fa8de99cfbcb9484667d25d5a317dcc193376e970d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "3cb53f29094892193ef3f1fa8de99cfbcb9484667d25d5a317dcc193376e970d", kill_on_drop: false }` [INFO] [stderr] Checking learn_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0603]: function `find_queen_position` is private [INFO] [stdout] --> src/main.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | use queen::find_queen_position; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ private function [INFO] [stdout] | [INFO] [stdout] note: the function `find_queen_position` is defined here [INFO] [stdout] --> src/queen.rs:18:1 [INFO] [stdout] | [INFO] [stdout] 18 | fn find_queen_position(result: Vec, row: i8) -> HashSet{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0603]: function `find_queen_position` is private [INFO] [stdout] --> src/main.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | use queen::find_queen_position; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ private function [INFO] [stdout] | [INFO] [stdout] note: the function `find_queen_position` is defined here [INFO] [stdout] --> src/queen.rs:18:1 [INFO] [stdout] | [INFO] [stdout] 18 | fn find_queen_position(result: Vec, row: i8) -> HashSet{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/queen.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 18 | fn find_queen_position(result: Vec, row: i8) -> HashSet{ [INFO] [stdout] | ----------- expected `HashSet` because of return type [INFO] [stdout] ... [INFO] [stdout] 26 | return available_col.difference(&disabled_col) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `HashSet`, found struct `std::collections::hash_set::Difference` [INFO] [stdout] | [INFO] [stdout] = note: expected struct `HashSet` [INFO] [stdout] found struct `std::collections::hash_set::Difference<'_, i8, RandomState>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0308, E0603. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `learn_rust` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/queen.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 18 | fn find_queen_position(result: Vec, row: i8) -> HashSet{ [INFO] [stdout] | ----------- expected `HashSet` because of return type [INFO] [stdout] ... [INFO] [stdout] 26 | return available_col.difference(&disabled_col) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `HashSet`, found struct `std::collections::hash_set::Difference` [INFO] [stdout] | [INFO] [stdout] = note: expected struct `HashSet` [INFO] [stdout] found struct `std::collections::hash_set::Difference<'_, i8, RandomState>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0308, E0603. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "3cb53f29094892193ef3f1fa8de99cfbcb9484667d25d5a317dcc193376e970d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3cb53f29094892193ef3f1fa8de99cfbcb9484667d25d5a317dcc193376e970d", kill_on_drop: false }` [INFO] [stdout] 3cb53f29094892193ef3f1fa8de99cfbcb9484667d25d5a317dcc193376e970d