[INFO] cloning repository https://github.com/markslater/rust-eight-queens [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/markslater/rust-eight-queens" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarkslater%2Frust-eight-queens", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarkslater%2Frust-eight-queens'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a70397b87f151524130cb30d8d125f6cce726d8d [INFO] checking markslater/rust-eight-queens against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarkslater%2Frust-eight-queens" "/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/markslater/rust-eight-queens on toolchain 506512391b1a75ae450d36c9420978402a91abcc [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/markslater/rust-eight-queens [INFO] finished tweaking git repo https://github.com/markslater/rust-eight-queens [INFO] tweaked toml for git repo https://github.com/markslater/rust-eight-queens written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/markslater/rust-eight-queens already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 41c1e0acdfbcff65a65400e68cdd909234b20dfa0a0e07aa4dcc20b06c6cfd79 [INFO] running `Command { std: "docker" "start" "-a" "41c1e0acdfbcff65a65400e68cdd909234b20dfa0a0e07aa4dcc20b06c6cfd79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "41c1e0acdfbcff65a65400e68cdd909234b20dfa0a0e07aa4dcc20b06c6cfd79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41c1e0acdfbcff65a65400e68cdd909234b20dfa0a0e07aa4dcc20b06c6cfd79", kill_on_drop: false }` [INFO] [stdout] 41c1e0acdfbcff65a65400e68cdd909234b20dfa0a0e07aa4dcc20b06c6cfd79 [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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 659db244cf11cd9ceaf1d7b7a85a437f7746bf6160a7e291da4376b79c5bc81d [INFO] running `Command { std: "docker" "start" "-a" "659db244cf11cd9ceaf1d7b7a85a437f7746bf6160a7e291da4376b79c5bc81d", kill_on_drop: false }` [INFO] [stderr] Checking eight_queens v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] running `Command { std: "docker" "inspect" "659db244cf11cd9ceaf1d7b7a85a437f7746bf6160a7e291da4376b79c5bc81d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "659db244cf11cd9ceaf1d7b7a85a437f7746bf6160a7e291da4376b79c5bc81d", kill_on_drop: false }` [INFO] [stdout] 659db244cf11cd9ceaf1d7b7a85a437f7746bf6160a7e291da4376b79c5bc81d [INFO] checking markslater/rust-eight-queens against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarkslater%2Frust-eight-queens" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/markslater/rust-eight-queens on toolchain dae34b759e282c069aa28752564694effd121a63 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/markslater/rust-eight-queens [INFO] finished tweaking git repo https://github.com/markslater/rust-eight-queens [INFO] tweaked toml for git repo https://github.com/markslater/rust-eight-queens written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/markslater/rust-eight-queens already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1fbbb52a14c3b927a8c7537c150be5a5d86510fbf9cc6c335421287489f5e78d [INFO] running `Command { std: "docker" "start" "-a" "1fbbb52a14c3b927a8c7537c150be5a5d86510fbf9cc6c335421287489f5e78d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1fbbb52a14c3b927a8c7537c150be5a5d86510fbf9cc6c335421287489f5e78d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1fbbb52a14c3b927a8c7537c150be5a5d86510fbf9cc6c335421287489f5e78d", kill_on_drop: false }` [INFO] [stdout] 1fbbb52a14c3b927a8c7537c150be5a5d86510fbf9cc6c335421287489f5e78d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e2beb970048505b4e141949ad4d95b971198144b51535d4351b6cae886a16c70 [INFO] running `Command { std: "docker" "start" "-a" "e2beb970048505b4e141949ad4d95b971198144b51535d4351b6cae886a16c70", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] Running `cargo fix --edition` [INFO] [stderr] Migrating Cargo.toml from 2021 edition to 2024 [INFO] [stderr] Checking eight_queens v0.1.0 (/tmp/fixit) [INFO] [stderr] Migrating src/lib.rs from 2021 edition to 2024 [INFO] [stderr] Migrating src/main.rs from 2021 edition to 2024 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s [INFO] [stderr] Running `cargo check` to verify 2024 [INFO] [stderr] Checking eight_queens v0.1.0 (/tmp/fixit) [INFO] [stdout] error[E0515]: cannot return value referencing local variable `board` [INFO] [stdout] --> src/board.rs:17:40 [INFO] [stdout] | [INFO] [stdout] 17 | .map(|(square, board)| (square, board.place_queens(square + 1, number_to_place - 1))) [INFO] [stdout] | ^^^^^^^^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | | [INFO] [stdout] | | `board` is borrowed here [INFO] [stdout] | returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing local variable `board` [INFO] [stdout] --> src/board.rs:17:40 [INFO] [stdout] | [INFO] [stdout] 17 | .map(|(square, board)| (square, board.place_queens(square + 1, number_to_place - 1))) [INFO] [stdout] | ^^^^^^^^^-----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | | [INFO] [stdout] | | `board` is borrowed here [INFO] [stdout] | returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0515`. [INFO] [stdout] [INFO] [stderr] error: could not compile `eight_queens` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0716]: temporary value dropped while borrowed [INFO] [stdout] --> src/board.rs:65:22 [INFO] [stdout] | [INFO] [stdout] 65 | let places = Board::new().place_queens(0, 0); [INFO] [stdout] | ^^^^^^^^^^^^ - temporary value is freed at the end of this statement [INFO] [stdout] | | [INFO] [stdout] | creates a temporary value which is freed while still in use [INFO] [stdout] 66 | assert_eq!(places.collect::>>(), [[]]); [INFO] [stdout] | ------ borrow later used here [INFO] [stdout] | [INFO] [stdout] help: consider using a `let` binding to create a longer lived value [INFO] [stdout] | [INFO] [stdout] 65 ~ let binding = Board::new(); [INFO] [stdout] 66 ~ let places = binding.place_queens(0, 0); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0716]: temporary value dropped while borrowed [INFO] [stdout] --> src/board.rs:71:22 [INFO] [stdout] | [INFO] [stdout] 71 | let places = Board::new().place_queens(0, 1); [INFO] [stdout] | ^^^^^^^^^^^^ - temporary value is freed at the end of this statement [INFO] [stdout] | | [INFO] [stdout] | creates a temporary value which is freed while still in use [INFO] [stdout] 72 | assert_eq!(places.collect::>>(), (0..64).map(|square| vec![square]).collect::>>()); [INFO] [stdout] | ------ borrow later used here [INFO] [stdout] | [INFO] [stdout] help: consider using a `let` binding to create a longer lived value [INFO] [stdout] | [INFO] [stdout] 71 ~ let binding = Board::new(); [INFO] [stdout] 72 ~ let places = binding.place_queens(0, 1); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0716]: temporary value dropped while borrowed [INFO] [stdout] --> src/board.rs:77:22 [INFO] [stdout] | [INFO] [stdout] 77 | let places = Board::new().place_queens(1, 1); [INFO] [stdout] | ^^^^^^^^^^^^ - temporary value is freed at the end of this statement [INFO] [stdout] | | [INFO] [stdout] | creates a temporary value which is freed while still in use [INFO] [stdout] 78 | assert_eq!(places.collect::>>(), (1..64).map(|square| vec![square]).collect::>>()); [INFO] [stdout] | ------ borrow later used here [INFO] [stdout] | [INFO] [stdout] help: consider using a `let` binding to create a longer lived value [INFO] [stdout] | [INFO] [stdout] 77 ~ let binding = Board::new(); [INFO] [stdout] 78 ~ let places = binding.place_queens(1, 1); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0515, E0716. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0515`. [INFO] [stdout] [INFO] [stderr] error: could not compile `eight_queens` (lib test) due to 5 previous errors [INFO] [stderr] error: failed to check after updating to 2024 [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `cargo check --frozen --all --all-targets --message-format=json` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "e2beb970048505b4e141949ad4d95b971198144b51535d4351b6cae886a16c70", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2beb970048505b4e141949ad4d95b971198144b51535d4351b6cae886a16c70", kill_on_drop: false }` [INFO] [stdout] e2beb970048505b4e141949ad4d95b971198144b51535d4351b6cae886a16c70