[INFO] fetching crate prometheus-static-metric 0.5.1... [INFO] testing prometheus-static-metric-0.5.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2 [INFO] extracting crate prometheus-static-metric 0.5.1 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate prometheus-static-metric 0.5.1 [INFO] finished tweaking crates.io crate prometheus-static-metric 0.5.1 [INFO] tweaked toml for crates.io crate prometheus-static-metric 0.5.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate prometheus-static-metric 0.5.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate prometheus-static-metric 0.5.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] da23ae3d9dd7a85e4d9dae2845121c9e58d14571872db7b77b3cd3b8a49f6bb8 [INFO] running `Command { std: "docker" "start" "-a" "da23ae3d9dd7a85e4d9dae2845121c9e58d14571872db7b77b3cd3b8a49f6bb8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "da23ae3d9dd7a85e4d9dae2845121c9e58d14571872db7b77b3cd3b8a49f6bb8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "da23ae3d9dd7a85e4d9dae2845121c9e58d14571872db7b77b3cd3b8a49f6bb8", kill_on_drop: false }` [INFO] [stdout] da23ae3d9dd7a85e4d9dae2845121c9e58d14571872db7b77b3cd3b8a49f6bb8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b2ba4ea4e1f6e7f339b207fb42b74d9dcbaa9150d180012a6aea3299d21594fa [INFO] running `Command { std: "docker" "start" "-a" "b2ba4ea4e1f6e7f339b207fb42b74d9dcbaa9150d180012a6aea3299d21594fa", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.58 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Compiling prometheus-static-metric v0.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `span` is never read [INFO] [stdout] --> src/parser.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 12 | struct LabelEnum { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 13 | pub span: Span, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.61s [INFO] running `Command { std: "docker" "inspect" "b2ba4ea4e1f6e7f339b207fb42b74d9dcbaa9150d180012a6aea3299d21594fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b2ba4ea4e1f6e7f339b207fb42b74d9dcbaa9150d180012a6aea3299d21594fa", kill_on_drop: false }` [INFO] [stdout] b2ba4ea4e1f6e7f339b207fb42b74d9dcbaa9150d180012a6aea3299d21594fa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e1f6fe0e64c7bde37ba44ec54c2d51c0e007fbeaa6ed902a3fdfba02c2a1766c [INFO] running `Command { std: "docker" "start" "-a" "e1f6fe0e64c7bde37ba44ec54c2d51c0e007fbeaa6ed902a3fdfba02c2a1766c", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.82 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling const_fn v0.4.5 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling serde_json v1.0.61 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling syn v1.0.58 [INFO] [stderr] Compiling itoa v0.4.7 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling thread_local v1.1.0 [INFO] [stderr] Compiling instant v0.1.9 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Compiling protobuf v2.20.0 [INFO] [stderr] Compiling smallvec v1.6.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling regex-syntax v0.6.21 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling lock_api v0.4.2 [INFO] [stderr] Compiling prometheus v0.11.0 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling half v1.6.0 [INFO] [stderr] Compiling walkdir v2.3.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling regex-automata v0.1.9 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling parking_lot_core v0.8.2 [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/protobuf-2.20.0/src/descriptor.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | #![rustfmt::skip] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54726 for more information [INFO] [stdout] = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/protobuf-2.20.0/src/plugin.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | #![rustfmt::skip] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54726 for more information [INFO] [stdout] = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/protobuf-2.20.0/src/rustproto.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | #![rustfmt::skip] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54726 for more information [INFO] [stdout] = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling oorandom v11.1.3 [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/protobuf-2.20.0/src/well_known_types/any.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | #![rustfmt::skip] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54726 for more information [INFO] [stdout] = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/protobuf-2.20.0/src/well_known_types/api.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | #![rustfmt::skip] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54726 for more information [INFO] [stdout] = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/protobuf-2.20.0/src/well_known_types/duration.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | #![rustfmt::skip] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54726 for more information [INFO] [stdout] = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/protobuf-2.20.0/src/well_known_types/empty.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | #![rustfmt::skip] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54726 for more information [INFO] [stdout] = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/protobuf-2.20.0/src/well_known_types/field_mask.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | #![rustfmt::skip] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54726 for more information [INFO] [stdout] = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/protobuf-2.20.0/src/well_known_types/source_context.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | #![rustfmt::skip] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54726 for more information [INFO] [stdout] = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/protobuf-2.20.0/src/well_known_types/struct_pb.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | #![rustfmt::skip] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54726 for more information [INFO] [stdout] = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/protobuf-2.20.0/src/well_known_types/timestamp.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | #![rustfmt::skip] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54726 for more information [INFO] [stdout] = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/protobuf-2.20.0/src/well_known_types/type_pb.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | #![rustfmt::skip] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54726 for more information [INFO] [stdout] = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/protobuf-2.20.0/src/well_known_types/wrappers.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | #![rustfmt::skip] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54726 for more information [INFO] [stdout] = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling criterion-plot v0.4.3 [INFO] [stderr] Compiling crossbeam-epoch v0.9.1 [INFO] [stderr] Compiling crossbeam-channel v0.5.0 [INFO] [stderr] Compiling crossbeam-deque v0.8.0 [INFO] [stderr] Compiling regex v1.4.2 [INFO] [stderr] Compiling plotters v0.2.15 [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] error: could not compile `protobuf` (lib) due to 13 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "e1f6fe0e64c7bde37ba44ec54c2d51c0e007fbeaa6ed902a3fdfba02c2a1766c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e1f6fe0e64c7bde37ba44ec54c2d51c0e007fbeaa6ed902a3fdfba02c2a1766c", kill_on_drop: false }` [INFO] [stdout] e1f6fe0e64c7bde37ba44ec54c2d51c0e007fbeaa6ed902a3fdfba02c2a1766c