[INFO] fetching crate mcp-cli-builder 0.1.1...
[INFO] testing mcp-cli-builder-0.1.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate mcp-cli-builder 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mcp-cli-builder 0.1.1
[INFO] finished tweaking crates.io crate mcp-cli-builder 0.1.1
[INFO] tweaked toml for crates.io crate mcp-cli-builder 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mcp-cli-builder 0.1.1 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mcp-cli-builder 0.1.1 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a20b23610dba2525eb9b46a3c7c7a83b08f930b829b816ec562db21ad25cd11
[INFO] running `Command { std: "docker" "start" "-a" "9a20b23610dba2525eb9b46a3c7c7a83b08f930b829b816ec562db21ad25cd11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a20b23610dba2525eb9b46a3c7c7a83b08f930b829b816ec562db21ad25cd11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a20b23610dba2525eb9b46a3c7c7a83b08f930b829b816ec562db21ad25cd11", kill_on_drop: false }`
[INFO] [stdout] 9a20b23610dba2525eb9b46a3c7c7a83b08f930b829b816ec562db21ad25cd11
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e0a44d74ea6bbc1c95c366518ac10091e162a4db71cf2f060886d034231b02b
[INFO] running `Command { std: "docker" "start" "-a" "4e0a44d74ea6bbc1c95c366518ac10091e162a4db71cf2f060886d034231b02b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling cc v1.2.33
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling bitflags v2.9.2
[INFO] [stderr]    Compiling rustls v0.23.31
[INFO] [stderr]    Compiling cookie v0.18.1
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling psl-types v2.0.11
[INFO] [stderr]    Compiling litrs v0.4.2
[INFO] [stderr]    Compiling webpki-roots v1.0.2
[INFO] [stderr]    Compiling fs-err v3.1.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling matchit v0.8.4
[INFO] [stderr]    Compiling document-features v0.2.11
[INFO] [stderr]    Compiling uuid v1.18.0
[INFO] [stderr]    Compiling humantime v2.2.0
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling terminal_size v0.4.3
[INFO] [stderr]    Compiling clap_builder v4.5.44
[INFO] [stderr]    Compiling clap v4.5.45
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling rustls-webpki v0.103.4
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling zerofrom v0.1.6
[INFO] [stderr]    Compiling yoke v0.8.0
[INFO] [stderr]    Compiling zerovec v0.11.4
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling zerotrie v0.2.2
[INFO] [stderr]    Compiling axum-core v0.5.2
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling tinystr v0.8.1
[INFO] [stderr]    Compiling potential_utf v0.1.2
[INFO] [stderr]    Compiling icu_collections v2.0.0
[INFO] [stderr]    Compiling icu_locale_core v2.0.0
[INFO] [stderr]    Compiling icu_provider v2.0.0
[INFO] [stderr]    Compiling icu_properties v2.0.1
[INFO] [stderr]    Compiling icu_normalizer v2.0.0
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling idna v1.0.3
[INFO] [stderr]    Compiling url v2.5.4
[INFO] [stderr]    Compiling publicsuffix v2.3.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling serde_path_to_error v0.1.17
[INFO] [stderr]    Compiling tokio-util v0.7.16
[INFO] [stderr]    Compiling tower v0.5.2
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling tokio-rustls v0.26.2
[INFO] [stderr]    Compiling tower-http v0.6.6
[INFO] [stderr]    Compiling h2 v0.4.12
[INFO] [stderr]    Compiling rust-mcp-macros v0.5.1
[INFO] [stderr]    Compiling cookie_store v0.21.1
[INFO] [stderr]    Compiling rust-mcp-schema v0.7.2
[INFO] [stderr]    Compiling hyper v1.7.0
[INFO] [stderr]    Compiling hyper-util v0.1.16
[INFO] [stderr]    Compiling hyper-rustls v0.27.7
[INFO] [stderr]    Compiling axum-server v0.7.2
[INFO] [stderr]    Compiling axum v0.8.4
[INFO] [stderr]    Compiling reqwest v0.12.23
[INFO] [stderr]    Compiling rust-mcp-transport v0.5.0
[INFO] [stderr]    Compiling rust-mcp-sdk v0.6.0
[INFO] [stderr]    Compiling mcp-utils v0.1.1
[INFO] [stderr]    Compiling mcp-cli-builder v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 00s
[INFO] running `Command { std: "docker" "inspect" "4e0a44d74ea6bbc1c95c366518ac10091e162a4db71cf2f060886d034231b02b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e0a44d74ea6bbc1c95c366518ac10091e162a4db71cf2f060886d034231b02b", kill_on_drop: false }`
[INFO] [stdout] 4e0a44d74ea6bbc1c95c366518ac10091e162a4db71cf2f060886d034231b02b
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94305ed16ff12eecc5170c3fd4a3ea0991cc7f1614502561d0391f7b7cc556c8
[INFO] running `Command { std: "docker" "start" "-a" "94305ed16ff12eecc5170c3fd4a3ea0991cc7f1614502561d0391f7b7cc556c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling insta v1.43.1
[INFO] [stderr]    Compiling mcp-cli-builder v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.72s
[INFO] running `Command { std: "docker" "inspect" "94305ed16ff12eecc5170c3fd4a3ea0991cc7f1614502561d0391f7b7cc556c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94305ed16ff12eecc5170c3fd4a3ea0991cc7f1614502561d0391f7b7cc556c8", kill_on_drop: false }`
[INFO] [stdout] 94305ed16ff12eecc5170c3fd4a3ea0991cc7f1614502561d0391f7b7cc556c8
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c2ec4fd6cd39c1d599acbf3f1fac0992c5bf6ed0425e030ba6b2f6e7c7f91fab
[INFO] running `Command { std: "docker" "start" "-a" "c2ec4fd6cd39c1d599acbf3f1fac0992c5bf6ed0425e030ba6b2f6e7c7f91fab", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mcp_cli_builder-ed38dc684a93be6d)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_version_command_snapshot ... ok
[INFO] [stdout] test tests::test_short_help_command_snapshot ... ok
[INFO] [stdout] test tests::test_help_command_snapshot ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mcp_cli_builder
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - run (line 58) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 2.96s; merged doctests compilation took 2.94s
[INFO] running `Command { std: "docker" "inspect" "c2ec4fd6cd39c1d599acbf3f1fac0992c5bf6ed0425e030ba6b2f6e7c7f91fab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2ec4fd6cd39c1d599acbf3f1fac0992c5bf6ed0425e030ba6b2f6e7c7f91fab", kill_on_drop: false }`
[INFO] [stdout] c2ec4fd6cd39c1d599acbf3f1fac0992c5bf6ed0425e030ba6b2f6e7c7f91fab