[INFO] fetching crate guardrails-mcp-server 0.1.0...
[INFO] testing guardrails-mcp-server-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate guardrails-mcp-server 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate guardrails-mcp-server 0.1.0
[INFO] finished tweaking crates.io crate guardrails-mcp-server 0.1.0
[INFO] tweaked toml for crates.io crate guardrails-mcp-server 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate guardrails-mcp-server 0.1.0 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 guardrails-mcp-server 0.1.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] edba36b4ae3340f383aa91cc7abe22f9ad3a1736d2456997a904ef012d9d25fb
[INFO] running `Command { std: "docker" "start" "-a" "edba36b4ae3340f383aa91cc7abe22f9ad3a1736d2456997a904ef012d9d25fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "edba36b4ae3340f383aa91cc7abe22f9ad3a1736d2456997a904ef012d9d25fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edba36b4ae3340f383aa91cc7abe22f9ad3a1736d2456997a904ef012d9d25fb", kill_on_drop: false }`
[INFO] [stdout] edba36b4ae3340f383aa91cc7abe22f9ad3a1736d2456997a904ef012d9d25fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6129b905bd530798d749e826e8c2125e4fd5b4e8725c67a4a9524431bf84b170
[INFO] running `Command { std: "docker" "start" "-a" "6129b905bd530798d749e826e8c2125e4fd5b4e8725c67a4a9524431bf84b170", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]    Compiling pin-project-lite v0.2.17
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling nu-ansi-term v0.50.3
[INFO] [stderr]    Compiling bytes v1.11.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.65
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling itoa v1.0.17
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling socket2 v0.6.2
[INFO] [stderr]    Compiling uuid v1.21.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tokio-macros v2.6.1
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling tokio v1.50.0
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling tracing-subscriber v0.3.22
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling guardrails-mcp-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `list` is never used
[INFO] [stdout]    --> src/policy.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout]  40 | impl PolicyEngine {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 126 |     pub fn list(&self) -> Vec<&Policy> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `jsonrpc` is never read
[INFO] [stdout]   --> src/mcp.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct JsonRpcRequest {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 10 |     jsonrpc: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.40s
[INFO] running `Command { std: "docker" "inspect" "6129b905bd530798d749e826e8c2125e4fd5b4e8725c67a4a9524431bf84b170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6129b905bd530798d749e826e8c2125e4fd5b4e8725c67a4a9524431bf84b170", kill_on_drop: false }`
[INFO] [stdout] 6129b905bd530798d749e826e8c2125e4fd5b4e8725c67a4a9524431bf84b170
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] bbf1061e2ead04bf9cfb53b026ee6aa7c7b1851f8d401b419ea107ddfbd4492a
[INFO] running `Command { std: "docker" "start" "-a" "bbf1061e2ead04bf9cfb53b026ee6aa7c7b1851f8d401b419ea107ddfbd4492a", kill_on_drop: false }`
[INFO] [stderr]    Compiling guardrails-mcp-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `list` is never used
[INFO] [stdout]    --> src/policy.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout]  40 | impl PolicyEngine {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 126 |     pub fn list(&self) -> Vec<&Policy> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `jsonrpc` is never read
[INFO] [stdout]   --> src/mcp.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct JsonRpcRequest {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 10 |     jsonrpc: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "bbf1061e2ead04bf9cfb53b026ee6aa7c7b1851f8d401b419ea107ddfbd4492a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbf1061e2ead04bf9cfb53b026ee6aa7c7b1851f8d401b419ea107ddfbd4492a", kill_on_drop: false }`
[INFO] [stdout] bbf1061e2ead04bf9cfb53b026ee6aa7c7b1851f8d401b419ea107ddfbd4492a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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", kill_on_drop: false }`
[INFO] [stdout] 66f03d80e27d38a2f2ed9f18debda8bbf665fd8e1966bf9db681e41a35d5bc2a
[INFO] running `Command { std: "docker" "start" "-a" "66f03d80e27d38a2f2ed9f18debda8bbf665fd8e1966bf9db681e41a35d5bc2a", kill_on_drop: false }`
[INFO] [stderr] warning: method `list` is never used
[INFO] [stderr]    --> src/policy.rs:126:12
[INFO] [stderr]     |
[INFO] [stderr]  40 | impl PolicyEngine {
[INFO] [stderr]     | ----------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 126 |     pub fn list(&self) -> Vec<&Policy> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `jsonrpc` is never read
[INFO] [stderr]   --> src/mcp.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr]  9 | struct JsonRpcRequest {
[INFO] [stderr]    |        -------------- field in this struct
[INFO] [stderr] 10 |     jsonrpc: String,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `guardrails-mcp-server` (bin "guardrails-mcp-server" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/guardrails_mcp_server-469411ac072eb120)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "66f03d80e27d38a2f2ed9f18debda8bbf665fd8e1966bf9db681e41a35d5bc2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66f03d80e27d38a2f2ed9f18debda8bbf665fd8e1966bf9db681e41a35d5bc2a", kill_on_drop: false }`
[INFO] [stdout] 66f03d80e27d38a2f2ed9f18debda8bbf665fd8e1966bf9db681e41a35d5bc2a