[INFO] fetching crate u-plus 1.0.0... [INFO] checking u-plus-1.0.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1 [INFO] extracting crate u-plus 1.0.0 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate u-plus 1.0.0 [INFO] finished tweaking crates.io crate u-plus 1.0.0 [INFO] tweaked toml for crates.io crate u-plus 1.0.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate u-plus 1.0.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7d6d1930254ba35b1280ff28ba68ec411db89273802a131839189b628a015c1f [INFO] running `Command { std: "docker" "start" "-a" "7d6d1930254ba35b1280ff28ba68ec411db89273802a131839189b628a015c1f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7d6d1930254ba35b1280ff28ba68ec411db89273802a131839189b628a015c1f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d6d1930254ba35b1280ff28ba68ec411db89273802a131839189b628a015c1f", kill_on_drop: false }` [INFO] [stdout] 7d6d1930254ba35b1280ff28ba68ec411db89273802a131839189b628a015c1f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 85088dec26b8d1fb0cc18b391d516690bf218aeb86e4f8d25b29383be76c0ef6 [INFO] running `Command { std: "docker" "start" "-a" "85088dec26b8d1fb0cc18b391d516690bf218aeb86e4f8d25b29383be76c0ef6", kill_on_drop: false }` [INFO] [stderr] Checking u-plus v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0658]: use of unstable const library feature `const_ops` [INFO] [stdout] --> src/lib.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | impl const Add for U { [INFO] [stdout] | ^^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143802 for more information [INFO] [stdout] = help: add `#![feature(const_ops)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-19; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_ops` [INFO] [stdout] --> src/lib.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | impl const Add for U { [INFO] [stdout] | ^^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143802 for more information [INFO] [stdout] = help: add `#![feature(const_ops)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-19; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_ops` [INFO] [stdout] --> src/lib.rs:43:12 [INFO] [stdout] | [INFO] [stdout] 43 | impl const Add for U { [INFO] [stdout] | ^^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143802 for more information [INFO] [stdout] = help: add `#![feature(const_ops)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-19; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_fn_floating_point_arithmetic` has been stable since 1.82.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:2:64 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(const_trait_impl, const_char_convert, const_option, const_fn_floating_point_arithmetic)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_char_convert` has been stable since 1.67.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:2:30 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(const_trait_impl, const_char_convert, const_option, const_fn_floating_point_arithmetic)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_option` has been stable since 1.83.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:2:50 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(const_trait_impl, const_char_convert, const_option, const_fn_floating_point_arithmetic)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_ops` [INFO] [stdout] --> src/lib.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | impl const Add for U { [INFO] [stdout] | ^^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143802 for more information [INFO] [stdout] = help: add `#![feature(const_ops)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-19; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_ops` [INFO] [stdout] --> src/lib.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | impl const Add for U { [INFO] [stdout] | ^^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143802 for more information [INFO] [stdout] = help: add `#![feature(const_ops)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-19; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_ops` [INFO] [stdout] --> src/lib.rs:43:12 [INFO] [stdout] | [INFO] [stdout] 43 | impl const Add for U { [INFO] [stdout] | ^^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143802 for more information [INFO] [stdout] = help: add `#![feature(const_ops)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-19; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_fn_floating_point_arithmetic` has been stable since 1.82.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:2:64 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(const_trait_impl, const_char_convert, const_option, const_fn_floating_point_arithmetic)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_char_convert` has been stable since 1.67.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:2:30 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(const_trait_impl, const_char_convert, const_option, const_fn_floating_point_arithmetic)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_option` has been stable since 1.83.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:2:50 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(const_trait_impl, const_char_convert, const_option, const_fn_floating_point_arithmetic)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: `Add` is not yet stable as a const trait [INFO] [stdout] --> src/lib.rs:68:23 [INFO] [stdout] | [INFO] [stdout] 68 | const MAX: char = U+109999; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: add `#![feature(const_ops)]` to the crate attributes to enable [INFO] [stdout] | [INFO] [stdout] 7 + #![feature(const_ops)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] error: could not compile `u-plus` (lib) due to 3 previous errors; 3 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `u-plus` (lib test) due to 4 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "85088dec26b8d1fb0cc18b391d516690bf218aeb86e4f8d25b29383be76c0ef6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "85088dec26b8d1fb0cc18b391d516690bf218aeb86e4f8d25b29383be76c0ef6", kill_on_drop: false }` [INFO] [stdout] 85088dec26b8d1fb0cc18b391d516690bf218aeb86e4f8d25b29383be76c0ef6