[INFO] cloning repository https://github.com/matthewjberger/arena_mcp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matthewjberger/arena_mcp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewjberger%2Farena_mcp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewjberger%2Farena_mcp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 446fb17d68d6f2f5831155ff38a3f26102febfe1
[INFO] testing matthewjberger/arena_mcp against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewjberger%2Farena_mcp" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/matthewjberger/arena_mcp
[INFO] finished tweaking git repo https://github.com/matthewjberger/arena_mcp
[INFO] tweaked toml for git repo https://github.com/matthewjberger/arena_mcp written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/matthewjberger/arena_mcp on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/matthewjberger/arena_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" "+beta-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0bc2a448ffe4048c029e866b72ba3fcc34a09709f1deae8728a37452cadb5bba
[INFO] running `Command { std: "docker" "start" "-a" "0bc2a448ffe4048c029e866b72ba3fcc34a09709f1deae8728a37452cadb5bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bc2a448ffe4048c029e866b72ba3fcc34a09709f1deae8728a37452cadb5bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bc2a448ffe4048c029e866b72ba3fcc34a09709f1deae8728a37452cadb5bba", kill_on_drop: false }`
[INFO] [stdout] 0bc2a448ffe4048c029e866b72ba3fcc34a09709f1deae8728a37452cadb5bba
[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-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24f220aecbfb7ef2899325bdacbc83c5e978835c4874c6c1615900ef36509f36
[INFO] running `Command { std: "docker" "start" "-a" "24f220aecbfb7ef2899325bdacbc83c5e978835c4874c6c1615900ef36509f36", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling pin-project-lite v0.2.17
[INFO] [stderr]    Compiling itoa v1.0.17
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling bytes v1.11.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling find-msvc-tools v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling futures-task v0.3.32
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling cc v1.2.56
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling http v1.4.0
[INFO] [stderr]    Compiling litemap v0.8.1
[INFO] [stderr]    Compiling writeable v0.6.2
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling icu_normalizer_data v2.1.1
[INFO] [stderr]    Compiling icu_properties_data v2.1.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling openssl v0.10.75
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling bitflags v2.11.0
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling native-tls v0.2.18
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling try-lock v0.2.5
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling tower-service v0.3.3
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling ref-cast v1.0.25
[INFO] [stderr]    Compiling openssl-probe v0.2.1
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling tower-layer v0.3.3
[INFO] [stderr]    Compiling ipnet v2.12.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling socket2 v0.6.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling iana-time-zone v0.1.65
[INFO] [stderr]    Compiling utf8_iter v1.0.4
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling ryu v1.0.23
[INFO] [stderr]    Compiling dyn-clone v1.0.20
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling iri-string v0.7.10
[INFO] [stderr]    Compiling rmcp v0.14.0
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]    Compiling rustls-pki-types v1.14.0
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling pastey v0.2.1
[INFO] [stderr]    Compiling openssl-sys v0.9.111
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling zerovec-derive v0.11.2
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling tokio-macros v2.6.1
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling ref-cast-impl v1.0.25
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling schemars_derive v1.2.1
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.1
[INFO] [stderr]    Compiling darling_macro v0.23.0
[INFO] [stderr]    Compiling tokio v1.50.0
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling darling v0.23.0
[INFO] [stderr]    Compiling rmcp-macros v0.14.0
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling zerofrom v0.1.6
[INFO] [stderr]    Compiling yoke v0.8.1
[INFO] [stderr]    Compiling zerovec v0.11.5
[INFO] [stderr]    Compiling zerotrie v0.2.3
[INFO] [stderr]    Compiling tokio-util v0.7.18
[INFO] [stderr]    Compiling tower v0.5.3
[INFO] [stderr]    Compiling tinystr v0.8.2
[INFO] [stderr]    Compiling potential_utf v0.1.4
[INFO] [stderr]    Compiling icu_locale_core v2.1.1
[INFO] [stderr]    Compiling icu_collections v2.1.1
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.4.13
[INFO] [stderr]    Compiling tower-http v0.6.8
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling icu_provider v2.1.1
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling icu_properties v2.1.2
[INFO] [stderr]    Compiling icu_normalizer v2.1.1
[INFO] [stderr]    Compiling schemars v1.2.1
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling url v2.5.8
[INFO] [stderr]    Compiling hyper v1.8.1
[INFO] [stderr]    Compiling hyper-util v0.1.20
[INFO] [stderr]    Compiling hyper-tls v0.6.0
[INFO] [stderr]    Compiling reqwest v0.12.28
[INFO] [stderr]    Compiling arena v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 5m 10s
[INFO] running `Command { std: "docker" "inspect" "24f220aecbfb7ef2899325bdacbc83c5e978835c4874c6c1615900ef36509f36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24f220aecbfb7ef2899325bdacbc83c5e978835c4874c6c1615900ef36509f36", kill_on_drop: false }`
[INFO] [stdout] 24f220aecbfb7ef2899325bdacbc83c5e978835c4874c6c1615900ef36509f36
[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-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 758cb16ef088c208b93e9f536d7d77ebbc2c8728e17969b391ec342c5adcebb0
[INFO] running `Command { std: "docker" "start" "-a" "758cb16ef088c208b93e9f536d7d77ebbc2c8728e17969b391ec342c5adcebb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling arena v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 23.00s
[INFO] running `Command { std: "docker" "inspect" "758cb16ef088c208b93e9f536d7d77ebbc2c8728e17969b391ec342c5adcebb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "758cb16ef088c208b93e9f536d7d77ebbc2c8728e17969b391ec342c5adcebb0", kill_on_drop: false }`
[INFO] [stdout] 758cb16ef088c208b93e9f536d7d77ebbc2c8728e17969b391ec342c5adcebb0
[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-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4cb543d83d2093d4d818f56563437f27e232a5ed35bf305d6127a5ed263d89f3
[INFO] running `Command { std: "docker" "start" "-a" "4cb543d83d2093d4d818f56563437f27e232a5ed35bf305d6127a5ed263d89f3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/arena-7dc62ff254047a92)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/arena-736d788d8d715625)
[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] [stderr]    Doc-tests arena
[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" "4cb543d83d2093d4d818f56563437f27e232a5ed35bf305d6127a5ed263d89f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cb543d83d2093d4d818f56563437f27e232a5ed35bf305d6127a5ed263d89f3", kill_on_drop: false }`
[INFO] [stdout] 4cb543d83d2093d4d818f56563437f27e232a5ed35bf305d6127a5ed263d89f3
