[INFO] fetching crate rust-mcp-filesystem 0.4.5...
[INFO] testing rust-mcp-filesystem-0.4.5 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate rust-mcp-filesystem 0.4.5 into /workspace/builds/worker-5-tc2/source
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate rust-mcp-filesystem 0.4.5
[INFO] finished tweaking crates.io crate rust-mcp-filesystem 0.4.5
[INFO] tweaked toml for crates.io crate rust-mcp-filesystem 0.4.5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-mcp-filesystem 0.4.5 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust-mcp-filesystem 0.4.5 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]    --> Cargo.toml:95:12
[INFO] [stderr]     |
[INFO] [stderr]  95 | homepage = "https://github.com/rust-mcp-stack/rust-mcp-filesystem"
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 100 | repository = "https://github.com/rust-mcp-stack/rust-mcp-filesystem"
[INFO] [stderr]     |              -------------------------------------------------------
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `rust-mcp-filesystem` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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] b277919321860c688cb3203b5a19c93b6aeca8a625305aef394c2a914430ca19
[INFO] running `Command { std: "docker" "start" "b277919321860c688cb3203b5a19c93b6aeca8a625305aef394c2a914430ca19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b277919321860c688cb3203b5a19c93b6aeca8a625305aef394c2a914430ca19", 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" "b277919321860c688cb3203b5a19c93b6aeca8a625305aef394c2a914430ca19" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b277919321860c688cb3203b5a19c93b6aeca8a625305aef394c2a914430ca19", 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" "b277919321860c688cb3203b5a19c93b6aeca8a625305aef394c2a914430ca19" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]    --> Cargo.toml:95:12
[INFO] [stderr]     |
[INFO] [stderr]  95 | homepage = "https://github.com/rust-mcp-stack/rust-mcp-filesystem"
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 100 | repository = "https://github.com/rust-mcp-stack/rust-mcp-filesystem"
[INFO] [stderr]     |              -------------------------------------------------------
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `rust-mcp-filesystem` (manifest) generated 1 warning
[INFO] [stderr]    Compiling futures-core v0.3.33
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling futures-sink v0.3.33
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling futures-io v0.3.33
[INFO] [stderr]    Compiling syn v3.0.3
[INFO] [stderr]    Compiling simd-adler32 v0.3.10
[INFO] [stderr]    Compiling tokio-macros v2.7.1
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling futures-macro v0.3.33
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling futures-task v0.3.33
[INFO] [stderr]    Compiling serde_json v1.0.151
[INFO] [stderr]    Compiling io-lifetimes v2.0.4
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling io-lifetimes v3.0.1
[INFO] [stderr]    Compiling thiserror v2.0.19
[INFO] [stderr]    Compiling futures-channel v0.3.33
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling grep-matcher v0.1.9
[INFO] [stderr]    Compiling io-extras v0.19.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling phf v0.11.3
[INFO] [stderr]    Compiling cap-primitives v4.0.3
[INFO] [stderr]    Compiling crc-catalog v2.5.0
[INFO] [stderr]    Compiling chrono v0.4.45
[INFO] [stderr]    Compiling crc v3.4.0
[INFO] [stderr]    Compiling oem_cp v2.1.2
[INFO] [stderr]    Compiling tokio v1.53.1
[INFO] [stderr]    Compiling cap-std v4.0.3
[INFO] [stderr]    Compiling oval v2.0.0
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling maybe-owned v0.3.4
[INFO] [stderr]    Compiling zip v2.4.2
[INFO] [stderr]    Compiling ipnet v2.12.1
[INFO] [stderr]    Compiling futures-util v0.3.33
[INFO] [stderr]    Compiling bumpalo v3.20.3
[INFO] [stderr]    Compiling ambient-authority v0.0.2
[INFO] [stderr]    Compiling regex-automata v0.4.16
[INFO] [stderr]    Compiling clap_builder v4.6.2
[INFO] [stderr]    Compiling zopfli v0.8.3
[INFO] [stderr]    Compiling encoding_rs_io v0.1.7
[INFO] [stderr]    Compiling chardetng v0.1.17
[INFO] [stderr]    Compiling time v0.3.54
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.100.0-beta.1-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-3.0.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat,unused-externs-silent --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=99e28f837fff6e6b -C extra-filename=-8b99b79026471b84 --out-dir /opt/rustwide/target/release/build/syn/8b99b79026471b84/out -C strip=debuginfo -L dependency=/opt/rustwide/target/release/build/proc-macro2/58bd5a67493b0c92/out -L dependency=/opt/rustwide/target/release/build/unicode-ident/3d1450b03eaa80c7/out --extern proc_macro2=/opt/rustwide/target/release/build/proc-macro2/58bd5a67493b0c92/out/libproc_macro2-58bd5a67493b0c92.rmeta --extern quote=/opt/rustwide/target/release/build/quote/bb159eae73371f0d/out/libquote-bb159eae73371f0d.rmeta --extern unicode_ident=/opt/rustwide/target/release/build/unicode-ident/3d1450b03eaa80c7/out/libunicode_ident-3d1450b03eaa80c7.rmeta --cap-lints allow --cap-lints=warn --force-warn=unused_crate_dependencies` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b277919321860c688cb3203b5a19c93b6aeca8a625305aef394c2a914430ca19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b277919321860c688cb3203b5a19c93b6aeca8a625305aef394c2a914430ca19", kill_on_drop: false }`
[INFO] [stdout] b277919321860c688cb3203b5a19c93b6aeca8a625305aef394c2a914430ca19
