[INFO] fetching crate deus-nqueens 0.4.2... [INFO] testing deus-nqueens-0.4.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] extracting crate deus-nqueens 0.4.2 into /workspace/builds/worker-4-tc1/source [INFO] started tweaking crates.io crate deus-nqueens 0.4.2 [INFO] finished tweaking crates.io crate deus-nqueens 0.4.2 [INFO] tweaked toml for crates.io crate deus-nqueens 0.4.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate deus-nqueens 0.4.2 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 31 packages to latest compatible versions [INFO] [stderr] Adding itertools v0.10.5 (available: v0.14.0) [INFO] [stderr] Adding ndarray v0.15.6 (available: v0.16.1) [INFO] [stderr] Adding rand v0.8.5 (available: v0.9.1) [INFO] [stderr] Adding svg v0.13.1 (available: v0.18.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded svg v0.13.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2782c9b10fb9a09f787602f7e94ceb83a4cfdf2c084831d4773508b13bc9c470 [INFO] running `Command { std: "docker" "start" "-a" "2782c9b10fb9a09f787602f7e94ceb83a4cfdf2c084831d4773508b13bc9c470", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2782c9b10fb9a09f787602f7e94ceb83a4cfdf2c084831d4773508b13bc9c470", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2782c9b10fb9a09f787602f7e94ceb83a4cfdf2c084831d4773508b13bc9c470", kill_on_drop: false }` [INFO] [stdout] 2782c9b10fb9a09f787602f7e94ceb83a4cfdf2c084831d4773508b13bc9c470 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 119850e14a9f2d57f038270df5688c8f35a034dd05ea76e9d630f55de1b8f420 [INFO] running `Command { std: "docker" "start" "-a" "119850e14a9f2d57f038270df5688c8f35a034dd05ea76e9d630f55de1b8f420", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling libc v0.2.174 [INFO] [stderr] Compiling zerocopy v0.8.26 [INFO] [stderr] Compiling matrixmultiply v0.3.10 [INFO] [stderr] Compiling rawpointer v0.2.1 [INFO] [stderr] Compiling either v1.15.0 [INFO] [stderr] Compiling svg v0.13.1 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling num-integer v0.1.46 [INFO] [stderr] Compiling num-complex v0.4.6 [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling num-bigint v0.4.6 [INFO] [stderr] Compiling num-iter v0.1.45 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling ndarray v0.15.6 [INFO] [stderr] Compiling ppv-lite86 v0.2.21 [INFO] [stderr] Compiling num-rational v0.4.2 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling num v0.4.3 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling deus-nqueens v0.4.2 (/opt/rustwide/workdir) [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(generators)] [INFO] [stdout] | ^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.75.0 (you are using 1.89.0-nightly (8de4c7234 2025-06-19)); see for more information [INFO] [stdout] = note: renamed to `coroutines` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0432]: unresolved import `std::iter::from_generator` [INFO] [stdout] --> src/bishops/mod.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | iter::from_generator, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ no `from_generator` in `iter` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0432]: unresolved import `std::iter::from_generator` [INFO] [stdout] --> src/queens/mod.rs:2:48 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{collections::BTreeSet, fmt::Display, iter::from_generator}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ no `from_generator` in `iter` [INFO] [stdout] | [INFO] [stdout] = note: unresolved item `crate::bishops::display::from_generator` exists but is inaccessible [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: yield syntax is experimental [INFO] [stdout] --> src/bishops/mod.rs:52:17 [INFO] [stdout] | [INFO] [stdout] 52 | yield state; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #43122 for more information [INFO] [stdout] = help: add `#![feature(yield_expr)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-06-19; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: yield syntax is experimental [INFO] [stdout] --> src/queens/mod.rs:57:17 [INFO] [stdout] | [INFO] [stdout] 57 | yield state; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #43122 for more information [INFO] [stdout] = help: add `#![feature(yield_expr)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-06-19; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: yield syntax is experimental [INFO] [stdout] --> src/bishops/mod.rs:52:17 [INFO] [stdout] | [INFO] [stdout] 52 | yield state; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #43122 for more information [INFO] [stdout] = help: add `#![feature(yield_expr)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-06-19; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks [INFO] [stdout] --> src/bishops/mod.rs:52:17 [INFO] [stdout] | [INFO] [stdout] 52 | yield state; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine [INFO] [stdout] | [INFO] [stdout] 49 | from_generator(#[coroutine] move || { [INFO] [stdout] | ++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: yield syntax is experimental [INFO] [stdout] --> src/queens/mod.rs:57:17 [INFO] [stdout] | [INFO] [stdout] 57 | yield state; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #43122 for more information [INFO] [stdout] = help: add `#![feature(yield_expr)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-06-19; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks [INFO] [stdout] --> src/queens/mod.rs:57:17 [INFO] [stdout] | [INFO] [stdout] 57 | yield state; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `#[coroutine]` to make this closure a coroutine [INFO] [stdout] | [INFO] [stdout] 54 | from_generator(#[coroutine] move || { [INFO] [stdout] | ++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `iter_from_generator` [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(iter_from_generator)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0432, E0557, E0635, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0432`. [INFO] [stdout] [INFO] [stderr] error: could not compile `deus-nqueens` (lib) due to 10 previous errors [INFO] running `Command { std: "docker" "inspect" "119850e14a9f2d57f038270df5688c8f35a034dd05ea76e9d630f55de1b8f420", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "119850e14a9f2d57f038270df5688c8f35a034dd05ea76e9d630f55de1b8f420", kill_on_drop: false }` [INFO] [stdout] 119850e14a9f2d57f038270df5688c8f35a034dd05ea76e9d630f55de1b8f420