[INFO] fetching crate ruby-lsp 0.0.2...
[INFO] checking ruby-lsp-0.0.2 against 1.95.0 for pr-155915
[INFO] extracting crate ruby-lsp 0.0.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate ruby-lsp 0.0.2
[INFO] finished tweaking crates.io crate ruby-lsp 0.0.2
[INFO] tweaked toml for crates.io crate ruby-lsp 0.0.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ruby-lsp 0.0.2 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ruby-lsp 0.0.2 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded notify-types v2.1.0
[INFO] [stderr]   Downloaded oak-folding v0.0.10
[INFO] [stderr]   Downloaded inotify v0.11.1
[INFO] [stderr]   Downloaded twox-hash v2.1.2
[INFO] [stderr]   Downloaded oak-symbols v0.0.10
[INFO] [stderr]   Downloaded oak-ruby v0.0.10
[INFO] [stderr]   Downloaded oak-resolver v0.0.10
[INFO] [stderr]   Downloaded oak-lsp v0.0.10
[INFO] [stderr]   Downloaded oak-navigation v0.0.10
[INFO] [stderr]   Downloaded oak-vfs v0.0.10
[INFO] [stderr]   Downloaded oak-core v0.0.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b52680b81beb87000b7b422eb41982ea911d02e85bd8fbf64f574b48bec19dd
[INFO] running `Command { std: "docker" "start" "-a" "2b52680b81beb87000b7b422eb41982ea911d02e85bd8fbf64f574b48bec19dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b52680b81beb87000b7b422eb41982ea911d02e85bd8fbf64f574b48bec19dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b52680b81beb87000b7b422eb41982ea911d02e85bd8fbf64f574b48bec19dd", kill_on_drop: false }`
[INFO] [stdout] 2b52680b81beb87000b7b422eb41982ea911d02e85bd8fbf64f574b48bec19dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76da3d33b7eec355cbab8068e0905734735ae5a5fdf273f84602728d6dce36f7
[INFO] running `Command { std: "docker" "start" "-a" "76da3d33b7eec355cbab8068e0905734735ae5a5fdf273f84602728d6dce36f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling libc v0.2.179
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]     Checking bitflags v2.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]     Checking notify-types v2.1.0
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking mio v1.1.1
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking socket2 v0.6.3
[INFO] [stderr]     Checking inotify v0.11.1
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking dashmap v6.1.0
[INFO] [stderr]     Checking notify v8.2.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking twox-hash v2.1.2
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.1
[INFO] [stderr]    Compiling zerovec-derive v0.11.2
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling tokio-macros v2.6.1
[INFO] [stderr]     Checking tokio v1.50.0
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking yoke v0.8.1
[INFO] [stderr]     Checking zerovec v0.11.5
[INFO] [stderr]     Checking zerotrie v0.2.3
[INFO] [stderr]     Checking tinystr v0.8.2
[INFO] [stderr]     Checking potential_utf v0.1.4
[INFO] [stderr]     Checking icu_collections v2.1.1
[INFO] [stderr]     Checking icu_locale_core v2.1.1
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking icu_provider v2.1.1
[INFO] [stderr]     Checking icu_normalizer v2.1.1
[INFO] [stderr]     Checking icu_properties v2.1.2
[INFO] [stderr]     Checking triomphe v0.1.15
[INFO] [stderr]     Checking oak-core v0.0.10
[INFO] [stderr]     Checking futures-executor v0.3.32
[INFO] [stderr]     Checking futures v0.3.32
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/oak-core-0.0.10/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(allocator_api)] // Required for custom arena allocation and manual memory management
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `oak-core` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "76da3d33b7eec355cbab8068e0905734735ae5a5fdf273f84602728d6dce36f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76da3d33b7eec355cbab8068e0905734735ae5a5fdf273f84602728d6dce36f7", kill_on_drop: false }`
[INFO] [stdout] 76da3d33b7eec355cbab8068e0905734735ae5a5fdf273f84602728d6dce36f7