[INFO] fetching crate sovran-mcp 0.3.6...
[INFO] testing sovran-mcp-0.3.6 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate sovran-mcp 0.3.6 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate sovran-mcp 0.3.6
[INFO] finished tweaking crates.io crate sovran-mcp 0.3.6
[INFO] tweaked toml for crates.io crate sovran-mcp 0.3.6 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sovran-mcp 0.3.6 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sovran-mcp 0.3.6 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" "+beta-2026-04-21" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61f6ba35fb13cae4194c5c4491dd440a3800f8b920d4ee8e768b448712b92af3
[INFO] running `Command { std: "docker" "start" "-a" "61f6ba35fb13cae4194c5c4491dd440a3800f8b920d4ee8e768b448712b92af3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61f6ba35fb13cae4194c5c4491dd440a3800f8b920d4ee8e768b448712b92af3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61f6ba35fb13cae4194c5c4491dd440a3800f8b920d4ee8e768b448712b92af3", kill_on_drop: false }`
[INFO] [stdout] 61f6ba35fb13cae4194c5c4491dd440a3800f8b920d4ee8e768b448712b92af3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 075d61dd7c0abccbca24379c3e47317edf232de678158ea50bff7bb9ffcbabf1
[INFO] running `Command { std: "docker" "start" "-a" "075d61dd7c0abccbca24379c3e47317edf232de678158ea50bff7bb9ffcbabf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.15
[INFO] [stderr]    Compiling litemap v0.7.4
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling log v0.4.25
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling serde_json v1.0.137
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling winnow v0.7.2
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling indexmap v2.7.1
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling toml_edit v0.22.24
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling matchers v0.1.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling zerofrom-derive v0.1.5
[INFO] [stderr]    Compiling yoke-derive v0.7.5
[INFO] [stderr]    Compiling zerovec-derive v0.10.3
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
[INFO] [stderr]    Compiling zerofrom v0.1.5
[INFO] [stderr]    Compiling yoke v0.7.5
[INFO] [stderr]    Compiling zerovec v0.10.4
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling tinystr v0.7.6
[INFO] [stderr]    Compiling icu_collections v1.5.0
[INFO] [stderr]    Compiling icu_locid v1.5.0
[INFO] [stderr]    Compiling icu_provider v1.5.0
[INFO] [stderr]    Compiling icu_locid_transform v1.5.0
[INFO] [stderr]    Compiling icu_properties v1.5.1
[INFO] [stderr]    Compiling icu_normalizer v1.5.0
[INFO] [stderr]    Compiling idna_adapter v1.2.0
[INFO] [stderr]    Compiling idna v1.0.3
[INFO] [stderr]    Compiling url v2.5.4
[INFO] [stderr]    Compiling sovran-mcp v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `CreateMessage` is never constructed
[INFO] [stdout]   --> src/commands.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct CreateMessage;
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 35.87s
[INFO] running `Command { std: "docker" "inspect" "075d61dd7c0abccbca24379c3e47317edf232de678158ea50bff7bb9ffcbabf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "075d61dd7c0abccbca24379c3e47317edf232de678158ea50bff7bb9ffcbabf1", kill_on_drop: false }`
[INFO] [stdout] 075d61dd7c0abccbca24379c3e47317edf232de678158ea50bff7bb9ffcbabf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fef319048837dda24fc67a2e46d028921969dda49587464611a100ad9531057f
[INFO] running `Command { std: "docker" "start" "-a" "fef319048837dda24fc67a2e46d028921969dda49587464611a100ad9531057f", kill_on_drop: false }`
[INFO] [stdout] warning: struct `CreateMessage` is never constructed
[INFO] [stdout]   --> src/commands.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct CreateMessage;
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sovran-mcp v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `CreateMessage` is never constructed
[INFO] [stdout]   --> src/commands.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct CreateMessage;
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.57s
[INFO] running `Command { std: "docker" "inspect" "fef319048837dda24fc67a2e46d028921969dda49587464611a100ad9531057f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fef319048837dda24fc67a2e46d028921969dda49587464611a100ad9531057f", kill_on_drop: false }`
[INFO] [stdout] fef319048837dda24fc67a2e46d028921969dda49587464611a100ad9531057f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ab55e9f1c71b1fe4abe909367dded4cb0c9da24e8f5aeffd7e8fe958e07cb75f
[INFO] running `Command { std: "docker" "start" "-a" "ab55e9f1c71b1fe4abe909367dded4cb0c9da24e8f5aeffd7e8fe958e07cb75f", kill_on_drop: false }`
[INFO] [stderr] warning: struct `CreateMessage` is never constructed
[INFO] [stderr]   --> src/commands.rs:90:12
[INFO] [stderr]    |
[INFO] [stderr] 90 | pub struct CreateMessage;
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sovran-mcp` (lib) generated 1 warning
[INFO] [stderr] warning: `sovran-mcp` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sovran_mcp-202e0f02e8cb5fbf)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::client_tests::tests::test_tools_operations ... FAILED
[INFO] [stdout] test tests::client_tests::tests::test_prompt_operations ... FAILED
[INFO] [stdout] test tests::client_tests::tests::test_capability_checks ... FAILED
[INFO] [stdout] test tests::client_tests::tests::test_quick_resource_operations ... FAILED
[INFO] [stdout] test tests::client_tests::tests::test_error_handling ... FAILED
[INFO] [stdout] test tests::client_tests::tests::test_quick_prompt_operations ... FAILED
[INFO] [stdout] test tests::client_tests::tests::test_initialization ... FAILED
[INFO] [stdout] test tests::client_tests::tests::test_fetch_compatibility ... FAILED
[INFO] [stdout] test tests::client_tests::tests::test_resource_operations ... FAILED
[INFO] [stdout] [2m2026-04-27T01:36:22.914869Z[0m [32m INFO[0m [2msovran_mcp::tests::client_tests::tests[0m[2m:[0m Starting subscription test
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] [2m2026-04-27T01:36:22.914936Z[0m [34mDEBUG[0m [2msovran_mcp::transport::stdio[0m[2m:[0m Creating StdioTransport for npx with args: ["-y", "@modelcontextprotocol/server-everything"]
[INFO] [stdout] [2m2026-04-27T01:36:22.914971Z[0m [34mDEBUG[0m [2msovran_mcp::transport::stdio[0m[2m:[0m StdioTransport: Opening transport
[INFO] [stdout] test tests::client_tests::tests::test_resource_subscription ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::client_tests::tests::test_tools_operations stdout ----
[INFO] [stdout] Error: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] ---- tests::client_tests::tests::test_prompt_operations stdout ----
[INFO] [stdout] Starting prompt test
[INFO] [stdout] Error: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] ---- tests::client_tests::tests::test_capability_checks stdout ----
[INFO] [stdout] Error: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] ---- tests::client_tests::tests::test_quick_resource_operations stdout ----
[INFO] [stdout] Error: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] ---- tests::client_tests::tests::test_error_handling stdout ----
[INFO] [stdout] Error: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] ---- tests::client_tests::tests::test_quick_prompt_operations stdout ----
[INFO] [stdout] Error: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] ---- tests::client_tests::tests::test_initialization stdout ----
[INFO] [stdout] Error: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] ---- tests::client_tests::tests::test_fetch_compatibility stdout ----
[INFO] [stdout] Error: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] ---- tests::client_tests::tests::test_resource_operations stdout ----
[INFO] [stdout] Error: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] ---- tests::client_tests::tests::test_resource_subscription stdout ----
[INFO] [stdout] Error: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::client_tests::tests::test_capability_checks
[INFO] [stdout]     tests::client_tests::tests::test_error_handling
[INFO] [stdout]     tests::client_tests::tests::test_fetch_compatibility
[INFO] [stdout]     tests::client_tests::tests::test_initialization
[INFO] [stdout]     tests::client_tests::tests::test_prompt_operations
[INFO] [stdout]     tests::client_tests::tests::test_quick_prompt_operations
[INFO] [stdout]     tests::client_tests::tests::test_quick_resource_operations
[INFO] [stdout]     tests::client_tests::tests::test_resource_operations
[INFO] [stdout]     tests::client_tests::tests::test_resource_subscription
[INFO] [stdout]     tests::client_tests::tests::test_tools_operations
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 10 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ab55e9f1c71b1fe4abe909367dded4cb0c9da24e8f5aeffd7e8fe958e07cb75f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab55e9f1c71b1fe4abe909367dded4cb0c9da24e8f5aeffd7e8fe958e07cb75f", kill_on_drop: false }`
[INFO] [stdout] ab55e9f1c71b1fe4abe909367dded4cb0c9da24e8f5aeffd7e8fe958e07cb75f
