[INFO] fetching crate const-enum 0.1.0... [INFO] checking const-enum-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] extracting crate const-enum 0.1.0 into /workspace/builds/worker-1-tc1/source [INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain.toml [INFO] started tweaking crates.io crate const-enum 0.1.0 [INFO] finished tweaking crates.io crate const-enum 0.1.0 [INFO] tweaked toml for crates.io crate const-enum 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate const-enum 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 36 packages to latest compatible versions [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.106) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5238cdfe0eae4a7a9fab141f850e3768c292a272a4a3b3cd63b4329abbd2db38 [INFO] running `Command { std: "docker" "start" "-a" "5238cdfe0eae4a7a9fab141f850e3768c292a272a4a3b3cd63b4329abbd2db38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5238cdfe0eae4a7a9fab141f850e3768c292a272a4a3b3cd63b4329abbd2db38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5238cdfe0eae4a7a9fab141f850e3768c292a272a4a3b3cd63b4329abbd2db38", kill_on_drop: false }` [INFO] [stdout] 5238cdfe0eae4a7a9fab141f850e3768c292a272a4a3b3cd63b4329abbd2db38 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bb29470ea658046ce2655c8347e04036a941e48af2b6fcba621447dd5cf2fedb [INFO] running `Command { std: "docker" "start" "-a" "bb29470ea658046ce2655c8347e04036a941e48af2b6fcba621447dd5cf2fedb", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.101 [INFO] [stderr] Compiling unicode-ident v1.0.18 [INFO] [stderr] Compiling serde v1.0.219 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling serde_json v1.0.143 [INFO] [stderr] Compiling target-triple v0.1.4 [INFO] [stderr] Checking winnow v0.7.13 [INFO] [stderr] Checking ryu v1.0.20 [INFO] [stderr] Checking memchr v2.7.5 [INFO] [stderr] Checking toml_writer v1.0.2 [INFO] [stderr] Checking itoa v1.0.15 [INFO] [stderr] Checking termcolor v1.4.1 [INFO] [stderr] Checking glob v0.3.3 [INFO] [stderr] Checking quote v1.0.40 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Checking const-enum v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking toml_parser v1.0.2 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Checking serde_spanned v1.0.0 [INFO] [stderr] Checking toml_datetime v0.7.0 [INFO] [stderr] Checking toml v0.9.5 [INFO] [stderr] Checking trybuild v1.0.110 [INFO] [stdout] error[E0658]: use of unstable const library feature `const_from` [INFO] [stdout] --> tests/example.rs:5:45 [INFO] [stdout] | [INFO] [stdout] 5 | #[derive(Copy, Clone, Debug, Eq, PartialEq, ConstEnum)] [INFO] [stdout] | ^^^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143773 for more information [INFO] [stdout] = help: add `#![feature(const_from)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date [INFO] [stdout] = note: this error originates in the derive macro `ConstEnum` (in Nightly builds, run with -Z macro-backtrace for more info) [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_from` [INFO] [stdout] --> tests/test.rs:5:45 [INFO] [stdout] | [INFO] [stdout] 5 | #[derive(Copy, Clone, Debug, Eq, PartialEq, ConstEnum)] [INFO] [stdout] | ^^^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143773 for more information [INFO] [stdout] = help: add `#![feature(const_from)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date [INFO] [stdout] = note: this error originates in the derive macro `ConstEnum` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `const-enum` (test "example") due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `const-enum` (test "test") due to 1 previous error [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "bb29470ea658046ce2655c8347e04036a941e48af2b6fcba621447dd5cf2fedb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb29470ea658046ce2655c8347e04036a941e48af2b6fcba621447dd5cf2fedb", kill_on_drop: false }` [INFO] [stdout] bb29470ea658046ce2655c8347e04036a941e48af2b6fcba621447dd5cf2fedb