[INFO] cloning repository https://github.com/DavideCanton/dancing_links [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DavideCanton/dancing_links" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavideCanton%2Fdancing_links", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavideCanton%2Fdancing_links'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 90374a785fc516da05cf68f5178af3699d0fb329 [INFO] checking DavideCanton/dancing_links against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavideCanton%2Fdancing_links" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/DavideCanton/dancing_links [INFO] finished tweaking git repo https://github.com/DavideCanton/dancing_links [INFO] tweaked toml for git repo https://github.com/DavideCanton/dancing_links written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/DavideCanton/dancing_links on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/DavideCanton/dancing_links 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 38f6bf9b31457059aa18bf014c9d23636fbb235166f23e71267a3d7a42b8d7ce [INFO] running `Command { std: "docker" "start" "-a" "38f6bf9b31457059aa18bf014c9d23636fbb235166f23e71267a3d7a42b8d7ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "38f6bf9b31457059aa18bf014c9d23636fbb235166f23e71267a3d7a42b8d7ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "38f6bf9b31457059aa18bf014c9d23636fbb235166f23e71267a3d7a42b8d7ce", kill_on_drop: false }` [INFO] [stdout] 38f6bf9b31457059aa18bf014c9d23636fbb235166f23e71267a3d7a42b8d7ce [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a845e9b3b6d3ab82e08262b9c84a7f6b49fbc4f8a87d91624960dcb8c43a9250 [INFO] running `Command { std: "docker" "start" "-a" "a845e9b3b6d3ab82e08262b9c84a7f6b49fbc4f8a87d91624960dcb8c43a9250", kill_on_drop: false }` [INFO] [stderr] Checking once_cell v1.20.3 [INFO] [stderr] Checking indexmap v2.7.1 [INFO] [stderr] Checking itertools v0.14.0 [INFO] [stderr] Checking num_threads v0.1.7 [INFO] [stderr] Compiling time-macros v0.2.19 [INFO] [stderr] Checking bumpalo v3.17.0 [INFO] [stderr] Compiling log v0.4.25 [INFO] [stderr] Compiling syn v2.0.98 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking priority-queue v2.1.2 [INFO] [stderr] Checking time v0.3.37 [INFO] [stderr] Checking simple_logger v5.0.0 [INFO] [stderr] Compiling logging_timer_proc_macros v1.1.1 [INFO] [stderr] Checking logging_timer v1.1.1 [INFO] [stderr] Compiling test-case-core v3.3.1 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling concat-idents v1.1.5 [INFO] [stderr] Compiling clap_derive v4.5.28 [INFO] [stderr] Compiling test-case-macros v3.3.1 [INFO] [stderr] Checking test-case v3.3.1 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Checking ppv-lite86 v0.2.20 [INFO] [stderr] Checking ahash v0.8.11 [INFO] [stderr] Checking hashbrown v0.14.5 [INFO] [stderr] Checking clap v4.5.30 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking dancing_links_matrix v0.1.0 (/opt/rustwide/workdir/crates/dancing_links_matrix) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> crates/dancing_links_matrix/src/solver.rs:90:9 [INFO] [stdout] | [INFO] [stdout] 90 | &self, [INFO] [stdout] | ^^^^^ the lifetime is elided here [INFO] [stdout] ... [INFO] [stdout] 93 | ) -> Solution { [INFO] [stdout] | ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 93 | ) -> Solution<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> crates/dancing_links_matrix/src/solver.rs:119:18 [INFO] [stdout] | [INFO] [stdout] 119 | pub fn solve(&self) -> Vec> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 119 | pub fn solve(&self) -> Vec> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking cmd_common v0.1.0 (/opt/rustwide/workdir/crates/cmd_common) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> crates/dancing_links_matrix/src/solver.rs:90:9 [INFO] [stdout] | [INFO] [stdout] 90 | &self, [INFO] [stdout] | ^^^^^ the lifetime is elided here [INFO] [stdout] ... [INFO] [stdout] 93 | ) -> Solution { [INFO] [stdout] | ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 93 | ) -> Solution<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> crates/dancing_links_matrix/src/solver.rs:119:18 [INFO] [stdout] | [INFO] [stdout] 119 | pub fn solve(&self) -> Vec> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 119 | pub fn solve(&self) -> Vec> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking nqueens v0.1.0 (/opt/rustwide/workdir/crates/nqueens) [INFO] [stderr] Checking sudoku v0.1.0 (/opt/rustwide/workdir/crates/sudoku) [INFO] [stderr] error: could not compile `sudoku` (bin "sudoku") due to 1 previous error [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/sudoku/src/main.rs:189:16 [INFO] [stdout] | [INFO] [stdout] 189 | let path = PathBuf::from_str(&args.file).expect("Invalid path"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `sudoku` (bin "sudoku" test) due to 1 previous error [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/sudoku/src/main.rs:189:16 [INFO] [stdout] | [INFO] [stdout] 189 | let path = PathBuf::from_str(&args.file).expect("Invalid path"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "a845e9b3b6d3ab82e08262b9c84a7f6b49fbc4f8a87d91624960dcb8c43a9250", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a845e9b3b6d3ab82e08262b9c84a7f6b49fbc4f8a87d91624960dcb8c43a9250", kill_on_drop: false }` [INFO] [stdout] a845e9b3b6d3ab82e08262b9c84a7f6b49fbc4f8a87d91624960dcb8c43a9250