[INFO] fetching crate fcplug-rclib 0.2.1...
[INFO] testing fcplug-rclib-0.2.1 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate fcplug-rclib 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate fcplug-rclib 0.2.1
[INFO] finished tweaking crates.io crate fcplug-rclib 0.2.1
[INFO] tweaked toml for crates.io crate fcplug-rclib 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fcplug-rclib 0.2.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 100 packages to highest compatible versions
[INFO] [stderr]       Adding fcplug-build v0.2.4 (available: v0.4.5)
[INFO] [stderr]       Adding flatbuffers v23.5.26 (available: v25.12.19)
[INFO] [stderr]       Adding protobuf v2.28.0 (available: v3.7.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fcplug-macros v0.2.4
[INFO] [stderr]   Downloaded protoc-rust v2.28.0
[INFO] [stderr]   Downloaded flatbuffers v23.5.26
[INFO] [stderr]   Downloaded protobuf v2.28.0
[INFO] [stderr]   Downloaded protoc v2.28.0
[INFO] [stderr]   Downloaded flatc-rust v0.2.0
[INFO] [stderr]   Downloaded protobuf-codegen v2.28.0
[INFO] [stderr]   Downloaded defer-lite v1.0.0
[INFO] [stderr]   Downloaded cbindgen v0.24.5
[INFO] [stderr]   Downloaded fcplug-build v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 2c9072d4e1b0cfff3de8b7e3d0fc5a527b4ba76b2c162ce56d4d66c8bc288da9
[INFO] running `Command { std: "docker" "start" "2c9072d4e1b0cfff3de8b7e3d0fc5a527b4ba76b2c162ce56d4d66c8bc288da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c9072d4e1b0cfff3de8b7e3d0fc5a527b4ba76b2c162ce56d4d66c8bc288da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2c9072d4e1b0cfff3de8b7e3d0fc5a527b4ba76b2c162ce56d4d66c8bc288da9" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c9072d4e1b0cfff3de8b7e3d0fc5a527b4ba76b2c162ce56d4d66c8bc288da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2c9072d4e1b0cfff3de8b7e3d0fc5a527b4ba76b2c162ce56d4d66c8bc288da9" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.191
[INFO] [stderr]    Compiling syn v3.0.9
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]    Compiling memchr v2.8.3
[INFO] [stderr]    Compiling rustix v1.1.5
[INFO] [stderr]    Compiling log v0.4.34
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling getrandom v0.4.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling zmij v1.0.23
[INFO] [stderr]    Compiling serde_json v1.0.154
[INFO] [stderr]    Compiling fastrand v2.5.0
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling os_str_bytes v6.6.1
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling cbindgen v0.24.5
[INFO] [stderr]    Compiling textwrap v0.16.4
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling regex-syntax v0.8.11
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling protoc v2.28.0
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling flatc-rust v0.2.0
[INFO] [stderr]    Compiling lazy_static v1.5.1
[INFO] [stderr]    Compiling thiserror v2.0.21
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling thread_local v1.1.10
[INFO] [stderr]    Compiling flatbuffers v23.5.26
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling aho-corasick v1.1.5
[INFO] [stderr]    Compiling time-core v0.1.9
[INFO] [stderr]    Compiling smallvec v1.16.3
[INFO] [stderr]    Compiling powerfmt v0.2.1
[INFO] [stderr]    Compiling num-conv v0.2.2
[INFO] [stderr]    Compiling deranged v0.5.9
[INFO] [stderr]    Compiling nu-ansi-term v0.50.3
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling symlink v0.1.0
[INFO] [stderr]    Compiling defer-lite v1.0.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.23
[INFO] [stderr]    Compiling time v0.3.55
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr]    Compiling regex-automata v0.4.18
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling thiserror-impl v2.0.21
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling protobuf-codegen v2.28.0
[INFO] [stderr]    Compiling regex v1.13.1
[INFO] [stderr]    Compiling tracing-appender v0.2.5
[INFO] [stderr]    Compiling protoc-rust v2.28.0
[INFO] [stderr]    Compiling fcplug-macros v0.2.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fcplug-macros-0.2.4/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fcplug-macros` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2c9072d4e1b0cfff3de8b7e3d0fc5a527b4ba76b2c162ce56d4d66c8bc288da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c9072d4e1b0cfff3de8b7e3d0fc5a527b4ba76b2c162ce56d4d66c8bc288da9", kill_on_drop: false }`
[INFO] [stdout] 2c9072d4e1b0cfff3de8b7e3d0fc5a527b4ba76b2c162ce56d4d66c8bc288da9
