[INFO] fetching crate u-plus 1.0.0...
[INFO] checking u-plus-1.0.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate u-plus 1.0.0 into /workspace/builds/worker-0-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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate u-plus 1.0.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 737cf0f754120ccb4aa6625ae073852153203c741789960218f8941e08d9e538
[INFO] running `Command { std: "docker" "start" "-a" "737cf0f754120ccb4aa6625ae073852153203c741789960218f8941e08d9e538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "737cf0f754120ccb4aa6625ae073852153203c741789960218f8941e08d9e538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "737cf0f754120ccb4aa6625ae073852153203c741789960218f8941e08d9e538", kill_on_drop: false }`
[INFO] [stdout] 737cf0f754120ccb4aa6625ae073852153203c741789960218f8941e08d9e538
[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=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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3114ff2a51f8db54aa81dca68e4ef17617376ff2e1e841c87f498a4fe699834
[INFO] running `Command { std: "docker" "start" "-a" "d3114ff2a51f8db54aa81dca68e4ef17617376ff2e1e841c87f498a4fe699834", 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<u32> for U {
[INFO] [stdout]    |            ^^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #90080 <https://github.com/rust-lang/rust/issues/90080> for more information
[INFO] [stdout]    = help: add `#![feature(const_ops)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-06-29; 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<f32> for U {
[INFO] [stdout]    |            ^^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #90080 <https://github.com/rust-lang/rust/issues/90080> for more information
[INFO] [stdout]    = help: add `#![feature(const_ops)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-06-29; 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<f64> for U {
[INFO] [stdout]    |            ^^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #90080 <https://github.com/rust-lang/rust/issues/90080> for more information
[INFO] [stdout]    = help: add `#![feature(const_ops)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-06-29; 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[E0658]: use of unstable const library feature `const_ops`
[INFO] [stdout]   --> src/lib.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl const Add<u32> for U {
[INFO] [stdout]    |            ^^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #90080 <https://github.com/rust-lang/rust/issues/90080> for more information
[INFO] [stdout]    = help: add `#![feature(const_ops)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-06-29; 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<f32> for U {
[INFO] [stdout]    |            ^^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #90080 <https://github.com/rust-lang/rust/issues/90080> for more information
[INFO] [stdout]    = help: add `#![feature(const_ops)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-06-29; 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<f64> for U {
[INFO] [stdout]    |            ^^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #90080 <https://github.com/rust-lang/rust/issues/90080> for more information
[INFO] [stdout]    = help: add `#![feature(const_ops)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-06-29; 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] [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] [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 test) due to 4 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d3114ff2a51f8db54aa81dca68e4ef17617376ff2e1e841c87f498a4fe699834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3114ff2a51f8db54aa81dca68e4ef17617376ff2e1e841c87f498a4fe699834", kill_on_drop: false }`
[INFO] [stdout] d3114ff2a51f8db54aa81dca68e4ef17617376ff2e1e841c87f498a4fe699834