[INFO] fetching crate vex-cdc 0.1.0...
[INFO] testing vex-cdc-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate vex-cdc 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate vex-cdc 0.1.0
[INFO] finished tweaking crates.io crate vex-cdc 0.1.0
[INFO] tweaked toml for crates.io crate vex-cdc 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vex-cdc 0.1.0 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 vex-cdc 0.1.0 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 21b7fac1e36488ec198288b58d024f9127a7b47f86c5beff7becf63dd9312515
[INFO] running `Command { std: "docker" "start" "-a" "21b7fac1e36488ec198288b58d024f9127a7b47f86c5beff7becf63dd9312515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21b7fac1e36488ec198288b58d024f9127a7b47f86c5beff7becf63dd9312515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21b7fac1e36488ec198288b58d024f9127a7b47f86c5beff7becf63dd9312515", kill_on_drop: false }`
[INFO] [stdout] 21b7fac1e36488ec198288b58d024f9127a7b47f86c5beff7becf63dd9312515
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 58446d6241a9495926bc41992250531d54d91af2150270555924d76dc1141547
[INFO] running `Command { std: "docker" "start" "-a" "58446d6241a9495926bc41992250531d54d91af2150270555924d76dc1141547", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling crc v3.2.1
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling vex-cdc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.34s
[INFO] running `Command { std: "docker" "inspect" "58446d6241a9495926bc41992250531d54d91af2150270555924d76dc1141547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58446d6241a9495926bc41992250531d54d91af2150270555924d76dc1141547", kill_on_drop: false }`
[INFO] [stdout] 58446d6241a9495926bc41992250531d54d91af2150270555924d76dc1141547
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ac6852cea9623eedc14b1ca16f040c0a48e8cb89457f42f1053af3449782ca9c
[INFO] running `Command { std: "docker" "start" "-a" "ac6852cea9623eedc14b1ca16f040c0a48e8cb89457f42f1053af3449782ca9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling vex-cdc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "ac6852cea9623eedc14b1ca16f040c0a48e8cb89457f42f1053af3449782ca9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac6852cea9623eedc14b1ca16f040c0a48e8cb89457f42f1053af3449782ca9c", kill_on_drop: false }`
[INFO] [stdout] ac6852cea9623eedc14b1ca16f040c0a48e8cb89457f42f1053af3449782ca9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3952241e130104605928ea70f7731b438e570f5e270fb5ffc5a561e6af17eadc
[INFO] running `Command { std: "docker" "start" "-a" "3952241e130104605928ea70f7731b438e570f5e270fb5ffc5a561e6af17eadc", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/vex_cdc-8e9b60823830dbaa)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests vex_cdc
[INFO] [stdout] running 2 tests
[INFO] [stdout] test varint::tests::thin ... ok
[INFO] [stdout] test varint::tests::wide ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/encode.rs - encode::MessageEncoder (line 9) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/encode.rs - encode::MessageEncoder (line 9) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `MessageEncoder`
[INFO] [stdout]  --> src/encode.rs:11:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | let mut enc = MessageEncoder::new(&mut buf);
[INFO] [stdout]   |               ^^^^^^^^^^^^^^ use of undeclared type `MessageEncoder`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use vex_cdc::MessageEncoder;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/encode.rs - encode::MessageEncoder (line 9)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.27s; merged doctests compilation took 0.09s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "3952241e130104605928ea70f7731b438e570f5e270fb5ffc5a561e6af17eadc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3952241e130104605928ea70f7731b438e570f5e270fb5ffc5a561e6af17eadc", kill_on_drop: false }`
[INFO] [stdout] 3952241e130104605928ea70f7731b438e570f5e270fb5ffc5a561e6af17eadc