[INFO] fetching crate rsmixer 0.5.5... [INFO] building rsmixer-0.5.5 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2 [INFO] extracting crate rsmixer 0.5.5 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate rsmixer 0.5.5 [INFO] finished tweaking crates.io crate rsmixer 0.5.5 [INFO] tweaked toml for crates.io crate rsmixer 0.5.5 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate rsmixer 0.5.5 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate rsmixer 0.5.5 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7f42b4500f10b5f556d10f05db9caa14056e24ea904ca91986e79103711c0d92 [INFO] running `Command { std: "docker" "start" "-a" "7f42b4500f10b5f556d10f05db9caa14056e24ea904ca91986e79103711c0d92", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7f42b4500f10b5f556d10f05db9caa14056e24ea904ca91986e79103711c0d92", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f42b4500f10b5f556d10f05db9caa14056e24ea904ca91986e79103711c0d92", kill_on_drop: false }` [INFO] [stdout] 7f42b4500f10b5f556d10f05db9caa14056e24ea904ca91986e79103711c0d92 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9f53db792c776984576f1795079f614d3eb625d28de007afcd5ef4bfae3e980a [INFO] running `Command { std: "docker" "start" "-a" "9f53db792c776984576f1795079f614d3eb625d28de007afcd5ef4bfae3e980a", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling syn v1.0.61 [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde_derive v1.0.114 [INFO] [stderr] Compiling once_cell v1.7.2 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Compiling instant v0.1.9 [INFO] [stderr] Compiling lock_api v0.4.2 [INFO] [stderr] Compiling tokio v1.3.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling pkg-config v0.3.17 [INFO] [stderr] Compiling futures-channel v0.3.5 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling bytes v1.0.1 [INFO] [stderr] Compiling pin-project-lite v0.2.6 [INFO] [stderr] Compiling ucd-trie v0.1.3 [INFO] [stderr] Compiling futures-task v0.3.5 [INFO] [stderr] Compiling unreachable v0.1.1 [INFO] [stderr] Compiling anyhow v1.0.38 [INFO] [stderr] Compiling async-trait v0.1.45 [INFO] [stderr] Compiling regex v1.3.8 [INFO] [stderr] Compiling itertools v0.10.0 [INFO] [stderr] Compiling crossbeam-channel v0.4.2 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling pest v2.1.3 [INFO] [stderr] Compiling libpulse-sys v1.17.0 [INFO] [stderr] Compiling quote v1.0.6 [INFO] [stderr] Compiling parking_lot_core v0.8.2 [INFO] [stderr] Compiling mio v0.7.7 [INFO] [stderr] Compiling signal-hook-registry v1.2.0 [INFO] [stderr] Compiling thread-id v3.3.0 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling dirs-sys v0.3.5 [INFO] [stderr] Compiling thread_local v0.3.3 [INFO] [stderr] Compiling semver-parser v0.10.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling simple-logging v2.0.2 [INFO] [stdout] error[E0658]: custom inner attributes are unstable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/semver-parser-0.10.1/src/generated.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | #![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 2025-09-28; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling env_logger v0.7.1 [INFO] [stderr] Compiling state v0.4.1 [INFO] [stderr] Compiling directories v2.0.2 [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] error: could not compile `semver-parser` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "9f53db792c776984576f1795079f614d3eb625d28de007afcd5ef4bfae3e980a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f53db792c776984576f1795079f614d3eb625d28de007afcd5ef4bfae3e980a", kill_on_drop: false }` [INFO] [stdout] 9f53db792c776984576f1795079f614d3eb625d28de007afcd5ef4bfae3e980a