[INFO] fetching crate const-bitfield 0.2.2... [INFO] checking const-bitfield-0.2.2 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1 [INFO] extracting crate const-bitfield 0.2.2 into /workspace/builds/worker-0-tc2/source [INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain.toml [INFO] started tweaking crates.io crate const-bitfield 0.2.2 [INFO] finished tweaking crates.io crate const-bitfield 0.2.2 [INFO] tweaked toml for crates.io crate const-bitfield 0.2.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate const-bitfield 0.2.2 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 37 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 12de34f857b9a149c715e496c3a598f227e37d08f3c78d1d6c6cefa2e946ef9e [INFO] running `Command { std: "docker" "start" "-a" "12de34f857b9a149c715e496c3a598f227e37d08f3c78d1d6c6cefa2e946ef9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "12de34f857b9a149c715e496c3a598f227e37d08f3c78d1d6c6cefa2e946ef9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "12de34f857b9a149c715e496c3a598f227e37d08f3c78d1d6c6cefa2e946ef9e", kill_on_drop: false }` [INFO] [stdout] 12de34f857b9a149c715e496c3a598f227e37d08f3c78d1d6c6cefa2e946ef9e [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2a7edcfdaed7573ea4e68076a90c6a3f12778bf523a8c7ed2bb9c9ce776f7a5c [INFO] running `Command { std: "docker" "start" "-a" "2a7edcfdaed7573ea4e68076a90c6a3f12778bf523a8c7ed2bb9c9ce776f7a5c", 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 serde_json v1.0.143 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking winnow v0.7.13 [INFO] [stderr] Compiling target-triple v0.1.4 [INFO] [stderr] Checking memchr v2.7.5 [INFO] [stderr] Checking itoa v1.0.15 [INFO] [stderr] Checking ryu v1.0.20 [INFO] [stderr] Checking toml_writer v1.0.2 [INFO] [stderr] Checking termcolor v1.4.1 [INFO] [stderr] Checking glob v0.3.3 [INFO] [stderr] Checking const-bitfield v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `const_mut_refs` has been stable since 1.83.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(const_mut_refs)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Checking toml_parser v1.0.2 [INFO] [stderr] Compiling const-enum v0.1.0 [INFO] [stderr] Checking toml_datetime v0.7.0 [INFO] [stderr] Checking serde_spanned v1.0.0 [INFO] [stderr] Compiling serde_derive v1.0.219 [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/bitfield_gdt.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 20 | impl const From for DescriptorType { [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] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_from` [INFO] [stdout] --> tests/bitfield_gdt.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 29 | impl const From for bool { [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] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_from` [INFO] [stdout] --> tests/bitfield_gdt.rs:38:45 [INFO] [stdout] | [INFO] [stdout] 38 | #[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] error[E0658]: use of unstable const library feature `const_from` [INFO] [stdout] --> tests/bitfield_gdt.rs:51:1 [INFO] [stdout] | [INFO] [stdout] 51 | / bitfield! { [INFO] [stdout] 52 | | #[derive(Copy, Clone)] [INFO] [stdout] 53 | | pub struct Descriptor(u64); [INFO] [stdout] 54 | | u32, limit_0_15, set_limit_0_15: 15, 0; [INFO] [stdout] ... | [INFO] [stdout] 66 | | u8, base_24_31, set_base_24_31: 63, 56; [INFO] [stdout] 67 | | } [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 macro `$crate::bitfield` which comes from the expansion of the macro `bitfield` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_from` [INFO] [stdout] --> tests/bitfield_gdt.rs:51:1 [INFO] [stdout] | [INFO] [stdout] 51 | / bitfield! { [INFO] [stdout] 52 | | #[derive(Copy, Clone)] [INFO] [stdout] 53 | | pub struct Descriptor(u64); [INFO] [stdout] 54 | | u32, limit_0_15, set_limit_0_15: 15, 0; [INFO] [stdout] ... | [INFO] [stdout] 66 | | u8, base_24_31, set_base_24_31: 63, 56; [INFO] [stdout] 67 | | } [INFO] [stdout] | |_^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143773 for more information [INFO] [stdout] = help: add `#![feature(const_from)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date [INFO] [stdout] = note: this error originates in the macro `$crate::bitfield` which comes from the expansion of the macro `bitfield` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_from` [INFO] [stdout] --> tests/bitfield_gdt.rs:51:1 [INFO] [stdout] | [INFO] [stdout] 51 | / bitfield! { [INFO] [stdout] 52 | | #[derive(Copy, Clone)] [INFO] [stdout] 53 | | pub struct Descriptor(u64); [INFO] [stdout] 54 | | u32, limit_0_15, set_limit_0_15: 15, 0; [INFO] [stdout] ... | [INFO] [stdout] 66 | | u8, base_24_31, set_base_24_31: 63, 56; [INFO] [stdout] 67 | | } [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 macro `$crate::bitfield` which comes from the expansion of the macro `bitfield` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_from` [INFO] [stdout] --> tests/bitfield_gdt.rs:51:1 [INFO] [stdout] | [INFO] [stdout] 51 | / bitfield! { [INFO] [stdout] 52 | | #[derive(Copy, Clone)] [INFO] [stdout] 53 | | pub struct Descriptor(u64); [INFO] [stdout] 54 | | u32, limit_0_15, set_limit_0_15: 15, 0; [INFO] [stdout] ... | [INFO] [stdout] 66 | | u8, base_24_31, set_base_24_31: 63, 56; [INFO] [stdout] 67 | | } [INFO] [stdout] | |_^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143773 for more information [INFO] [stdout] = help: add `#![feature(const_from)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date [INFO] [stdout] = note: this error originates in the macro `$crate::bitfield` which comes from the expansion of the macro `bitfield` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_mut_refs` has been stable since 1.83.0 and no longer requires an attribute to enable [INFO] [stdout] --> tests/bitfield_gdt.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(const_mut_refs)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [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] --> tests/bitfield_gdt.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(const_option)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `const_convert` [INFO] [stdout] --> tests/bitfield_gdt.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(const_convert)] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_mut_refs` has been stable since 1.83.0 and no longer requires an attribute to enable [INFO] [stdout] --> tests/bitfield.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(const_mut_refs)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_mut_refs` has been stable since 1.83.0 and no longer requires an attribute to enable [INFO] [stdout] --> tests/bitfield_example.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(const_mut_refs)] // always required [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `const_convert` [INFO] [stdout] --> tests/bitfield_example.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(const_convert)] // optional, when using from/into conversion [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stdout] error: `From` is not yet stable as a const trait [INFO] [stdout] --> tests/bitfield_gdt.rs:51:1 [INFO] [stdout] | [INFO] [stdout] 51 | / bitfield! { [INFO] [stdout] 52 | | #[derive(Copy, Clone)] [INFO] [stdout] 53 | | pub struct Descriptor(u64); [INFO] [stdout] 54 | | u32, limit_0_15, set_limit_0_15: 15, 0; [INFO] [stdout] ... | [INFO] [stdout] 66 | | u8, base_24_31, set_base_24_31: 63, 56; [INFO] [stdout] 67 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::bitfield` which comes from the expansion of the macro `bitfield` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: add `#![feature(const_from)]` to the crate attributes to enable [INFO] [stdout] | [INFO] [stdout] 6 + #![feature(const_from)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: `From` is not yet stable as a const trait [INFO] [stdout] --> tests/bitfield_gdt.rs:51:1 [INFO] [stdout] | [INFO] [stdout] 51 | / bitfield! { [INFO] [stdout] 52 | | #[derive(Copy, Clone)] [INFO] [stdout] 53 | | pub struct Descriptor(u64); [INFO] [stdout] 54 | | u32, limit_0_15, set_limit_0_15: 15, 0; [INFO] [stdout] ... | [INFO] [stdout] 66 | | u8, base_24_31, set_base_24_31: 63, 56; [INFO] [stdout] 67 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::bitfield` which comes from the expansion of the macro `bitfield` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: add `#![feature(const_from)]` to the crate attributes to enable [INFO] [stdout] | [INFO] [stdout] 6 + #![feature(const_from)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: `From` is not yet stable as a const trait [INFO] [stdout] --> tests/bitfield_gdt.rs:51:1 [INFO] [stdout] | [INFO] [stdout] 51 | / bitfield! { [INFO] [stdout] 52 | | #[derive(Copy, Clone)] [INFO] [stdout] 53 | | pub struct Descriptor(u64); [INFO] [stdout] 54 | | u32, limit_0_15, set_limit_0_15: 15, 0; [INFO] [stdout] ... | [INFO] [stdout] 66 | | u8, base_24_31, set_base_24_31: 63, 56; [INFO] [stdout] 67 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::bitfield` which comes from the expansion of the macro `bitfield` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: add `#![feature(const_from)]` to the crate attributes to enable [INFO] [stdout] | [INFO] [stdout] 6 + #![feature(const_from)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: `From` is not yet stable as a const trait [INFO] [stdout] --> tests/bitfield_gdt.rs:51:1 [INFO] [stdout] | [INFO] [stdout] 51 | / bitfield! { [INFO] [stdout] 52 | | #[derive(Copy, Clone)] [INFO] [stdout] 53 | | pub struct Descriptor(u64); [INFO] [stdout] 54 | | u32, limit_0_15, set_limit_0_15: 15, 0; [INFO] [stdout] ... | [INFO] [stdout] 66 | | u8, base_24_31, set_base_24_31: 63, 56; [INFO] [stdout] 67 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::bitfield` which comes from the expansion of the macro `bitfield` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: add `#![feature(const_from)]` to the crate attributes to enable [INFO] [stdout] | [INFO] [stdout] 6 + #![feature(const_from)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `const-bitfield` (test "bitfield_example") due to 1 previous error; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: the feature `const_mut_refs` has been stable since 1.83.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(const_mut_refs)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0635, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stderr] error: could not compile `const-bitfield` (test "bitfield_gdt") due to 12 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "2a7edcfdaed7573ea4e68076a90c6a3f12778bf523a8c7ed2bb9c9ce776f7a5c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a7edcfdaed7573ea4e68076a90c6a3f12778bf523a8c7ed2bb9c9ce776f7a5c", kill_on_drop: false }` [INFO] [stdout] 2a7edcfdaed7573ea4e68076a90c6a3f12778bf523a8c7ed2bb9c9ce776f7a5c