[INFO] fetching crate just-mcp-lib 0.1.1...
[INFO] checking just-mcp-lib-0.1.1 against try#fcfb0ffc7ed7fc631df1136063939ef648434735 for pr-152543
[INFO] extracting crate just-mcp-lib 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate just-mcp-lib 0.1.1
[INFO] finished tweaking crates.io crate just-mcp-lib 0.1.1
[INFO] tweaked toml for crates.io crate just-mcp-lib 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate just-mcp-lib 0.1.1 on toolchain fcfb0ffc7ed7fc631df1136063939ef648434735
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate just-mcp-lib 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" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3a12d483be17076739306d8083f895f53dbdd2853329b63beb0eee4cd565322
[INFO] running `Command { std: "docker" "start" "-a" "f3a12d483be17076739306d8083f895f53dbdd2853329b63beb0eee4cd565322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3a12d483be17076739306d8083f895f53dbdd2853329b63beb0eee4cd565322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3a12d483be17076739306d8083f895f53dbdd2853329b63beb0eee4cd565322", kill_on_drop: false }`
[INFO] [stdout] f3a12d483be17076739306d8083f895f53dbdd2853329b63beb0eee4cd565322
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0527fa64ad95e338596c4f2874de70af94025add20cd61b45ccafec436aa9393
[INFO] running `Command { std: "docker" "start" "-a" "0527fa64ad95e338596c4f2874de70af94025add20cd61b45ccafec436aa9393", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling serde_json v1.0.141
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]     Checking linux-raw-sys v0.9.4
[INFO] [stderr]     Checking tempfile v3.20.0
[INFO] [stderr]    Compiling darling_core v0.21.0
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[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 ref-cast-impl v1.0.24
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling schemars_derive v1.0.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling snafu-derive v0.8.6
[INFO] [stderr]     Checking tokio v1.46.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking thiserror v2.0.12
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling darling_macro v0.21.0
[INFO] [stderr]     Checking snafu v0.8.6
[INFO] [stderr]    Compiling darling v0.21.0
[INFO] [stderr]    Compiling rmcp-macros v0.3.0
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking tokio-util v0.7.15
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking schemars v1.0.4
[INFO] [stderr]     Checking rmcp v0.3.0
[INFO] [stderr]     Checking just-mcp-lib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 52.70s
[INFO] running `Command { std: "docker" "inspect" "0527fa64ad95e338596c4f2874de70af94025add20cd61b45ccafec436aa9393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0527fa64ad95e338596c4f2874de70af94025add20cd61b45ccafec436aa9393", kill_on_drop: false }`
[INFO] [stdout] 0527fa64ad95e338596c4f2874de70af94025add20cd61b45ccafec436aa9393