[INFO] cloning repository https://github.com/colinrozzi/rust-mcp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/colinrozzi/rust-mcp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolinrozzi%2Frust-mcp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolinrozzi%2Frust-mcp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 728811d12ca34c9c32a839e0e9a8f799087ee3d8
[INFO] checking colinrozzi/rust-mcp against try#1f308f12738d8cc40bb23bf0c8114b37c164bb49 for pr-137268
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolinrozzi%2Frust-mcp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/colinrozzi/rust-mcp on toolchain 1f308f12738d8cc40bb23bf0c8114b37c164bb49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/colinrozzi/rust-mcp
[INFO] finished tweaking git repo https://github.com/colinrozzi/rust-mcp
[INFO] tweaked toml for git repo https://github.com/colinrozzi/rust-mcp written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/colinrozzi/rust-mcp 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" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking colinrozzi/rust-mcp against try#1f308f12738d8cc40bb23bf0c8114b37c164bb49 for pr-137268
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolinrozzi%2Frust-mcp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/colinrozzi/rust-mcp on toolchain 1f308f12738d8cc40bb23bf0c8114b37c164bb49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/colinrozzi/rust-mcp
[INFO] finished tweaking git repo https://github.com/colinrozzi/rust-mcp
[INFO] tweaked toml for git repo https://github.com/colinrozzi/rust-mcp written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/colinrozzi/rust-mcp 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" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking colinrozzi/rust-mcp against try#1f308f12738d8cc40bb23bf0c8114b37c164bb49 for pr-137268
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolinrozzi%2Frust-mcp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/colinrozzi/rust-mcp on toolchain 1f308f12738d8cc40bb23bf0c8114b37c164bb49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/colinrozzi/rust-mcp
[INFO] finished tweaking git repo https://github.com/colinrozzi/rust-mcp
[INFO] tweaked toml for git repo https://github.com/colinrozzi/rust-mcp written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/colinrozzi/rust-mcp 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" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking colinrozzi/rust-mcp against try#1f308f12738d8cc40bb23bf0c8114b37c164bb49 for pr-137268
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolinrozzi%2Frust-mcp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/colinrozzi/rust-mcp on toolchain 1f308f12738d8cc40bb23bf0c8114b37c164bb49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/colinrozzi/rust-mcp
[INFO] finished tweaking git repo https://github.com/colinrozzi/rust-mcp
[INFO] tweaked toml for git repo https://github.com/colinrozzi/rust-mcp written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/colinrozzi/rust-mcp 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" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c412e57dabf15beaf4932cc35ffb42e832adc819386f9951a429a0394e4f196
[INFO] running `Command { std: "docker" "start" "-a" "8c412e57dabf15beaf4932cc35ffb42e832adc819386f9951a429a0394e4f196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c412e57dabf15beaf4932cc35ffb42e832adc819386f9951a429a0394e4f196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c412e57dabf15beaf4932cc35ffb42e832adc819386f9951a429a0394e4f196", kill_on_drop: false }`
[INFO] [stdout] 8c412e57dabf15beaf4932cc35ffb42e832adc819386f9951a429a0394e4f196
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46c61f5c98d92753ae198d5e7a7e960fa55dce62e78645ae57f1e1eee82ca557
[INFO] running `Command { std: "docker" "start" "-a" "46c61f5c98d92753ae198d5e7a7e960fa55dce62e78645ae57f1e1eee82ca557", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking socket2 v0.5.9
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling async-trait v0.1.88
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking tokio v1.44.2
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking mcp-protocol v0.1.0 (/opt/rustwide/workdir/mcp-protocol)
[INFO] [stderr]     Checking mcp-server v0.1.0 (/opt/rustwide/workdir/mcp-server)
[INFO] [stderr]     Checking mcp-client v0.1.0 (/opt/rustwide/workdir/mcp-client)
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> mcp-server/src/server.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tracing::{debug, error};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> mcp-server/src/server.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tracing::{debug, error};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking sampling-client v0.1.0 (/opt/rustwide/workdir/examples/sampling-client)
[INFO] [stderr]     Checking simple-client v0.1.0 (/opt/rustwide/workdir/examples/simple-client)
[INFO] [stderr]     Checking template-client v0.1.0 (/opt/rustwide/workdir/examples/template-client)
[INFO] [stderr]     Checking completion-client v0.1.0 (/opt/rustwide/workdir/examples/completion-client)
[INFO] [stderr]     Checking sampling-server v0.1.0 (/opt/rustwide/workdir/examples/sampling-server)
[INFO] [stderr]     Checking template-server v0.1.0 (/opt/rustwide/workdir/examples/template-server)
[INFO] [stderr]     Checking hello-world v0.1.0 (/opt/rustwide/workdir/examples/hello-world)
[INFO] [stderr]     Checking prompt-server v0.1.0 (/opt/rustwide/workdir/examples/prompt-server)
[INFO] [stderr]     Checking prompt-client v0.1.0 (/opt/rustwide/workdir/examples/prompt-client)
[INFO] [stderr]     Checking resource-server v0.1.0 (/opt/rustwide/workdir/examples/resource-server)
[INFO] [stderr]     Checking completion-server v0.1.0 (/opt/rustwide/workdir/examples/completion-server)
[INFO] [stdout] warning: unused variable: `client_info`
[INFO] [stdout]   --> examples/prompt-client/src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let client_info = ClientInfo {
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_client_info`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prompt`
[INFO] [stdout]   --> examples/prompt-client/src/main.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |     if let Some(prompt) = prompts.iter().find(|p| p["name"].as_str().unwrap() == "code_review") {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prompt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prompt`
[INFO] [stdout]    --> examples/prompt-client/src/main.rs:119:17
[INFO] [stdout]     |
[INFO] [stdout] 119 |     if let Some(prompt) = prompts.iter().find(|p| p["name"].as_str().unwrap() == "translate") {
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prompt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client_info`
[INFO] [stdout]   --> examples/prompt-client/src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let client_info = ClientInfo {
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_client_info`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prompt`
[INFO] [stdout]   --> examples/prompt-client/src/main.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |     if let Some(prompt) = prompts.iter().find(|p| p["name"].as_str().unwrap() == "code_review") {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prompt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prompt`
[INFO] [stdout]    --> examples/prompt-client/src/main.rs:119:17
[INFO] [stdout]     |
[INFO] [stdout] 119 |     if let Some(prompt) = prompts.iter().find(|p| p["name"].as_str().unwrap() == "translate") {
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prompt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.06s
[INFO] running `Command { std: "docker" "inspect" "46c61f5c98d92753ae198d5e7a7e960fa55dce62e78645ae57f1e1eee82ca557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46c61f5c98d92753ae198d5e7a7e960fa55dce62e78645ae57f1e1eee82ca557", kill_on_drop: false }`
[INFO] [stdout] 46c61f5c98d92753ae198d5e7a7e960fa55dce62e78645ae57f1e1eee82ca557