[INFO] fetching crate rmp-serde 1.3.1...
[INFO] testing rmp-serde-1.3.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rmp-serde 1.3.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rmp-serde 1.3.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rmp-serde 1.3.1
[INFO] tweaked toml for crates.io crate rmp-serde 1.3.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmp-serde 1.3.1 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 rmp-serde 1.3.1 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-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce632c5fed1ce4bc73a066940a10569161891a783cd21c6be15fced8cd7d3f81
[INFO] running `Command { std: "docker" "start" "-a" "ce632c5fed1ce4bc73a066940a10569161891a783cd21c6be15fced8cd7d3f81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce632c5fed1ce4bc73a066940a10569161891a783cd21c6be15fced8cd7d3f81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce632c5fed1ce4bc73a066940a10569161891a783cd21c6be15fced8cd7d3f81", kill_on_drop: false }`
[INFO] [stdout] ce632c5fed1ce4bc73a066940a10569161891a783cd21c6be15fced8cd7d3f81
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e869ffc6ab55d93536813dc6177a61e8e2edc26f97b0fba3daa98b244d59814
[INFO] running `Command { std: "docker" "start" "-a" "9e869ffc6ab55d93536813dc6177a61e8e2edc26f97b0fba3daa98b244d59814", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rmp v0.8.15
[INFO] [stderr]    Compiling rmp-serde v1.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.62s
[INFO] running `Command { std: "docker" "inspect" "9e869ffc6ab55d93536813dc6177a61e8e2edc26f97b0fba3daa98b244d59814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e869ffc6ab55d93536813dc6177a61e8e2edc26f97b0fba3daa98b244d59814", kill_on_drop: false }`
[INFO] [stdout] 9e869ffc6ab55d93536813dc6177a61e8e2edc26f97b0fba3daa98b244d59814
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0157429b0f86e9bed4bd3adf182df55c50f3ed23d69b409b4f6dedc535080bb3
[INFO] running `Command { std: "docker" "start" "-a" "0157429b0f86e9bed4bd3adf182df55c50f3ed23d69b409b4f6dedc535080bb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling rmp-serde v1.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: cannot find module or crate `rmpv` in this scope
[INFO] [stdout]    --> tests/round.rs:753:17
[INFO] [stdout]     |
[INFO] [stdout] 753 |                 rmpv::decode::value::read_value(&mut serialized.as_slice())
[INFO] [stdout]     |                 ^^^^ use of unresolved module or unlinked crate `rmpv`
[INFO] [stdout]     |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 753 -                 rmpv::decode::value::read_value(&mut serialized.as_slice())
[INFO] [stdout] 753 +                 rmp::decode::value::read_value(&mut serialized.as_slice())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rmp-serde` (test "round") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0157429b0f86e9bed4bd3adf182df55c50f3ed23d69b409b4f6dedc535080bb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0157429b0f86e9bed4bd3adf182df55c50f3ed23d69b409b4f6dedc535080bb3", kill_on_drop: false }`
[INFO] [stdout] 0157429b0f86e9bed4bd3adf182df55c50f3ed23d69b409b4f6dedc535080bb3
