[INFO] fetching crate mcp2221 0.1.1...
[INFO] testing mcp2221-0.1.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate mcp2221 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mcp2221 0.1.1
[INFO] finished tweaking crates.io crate mcp2221 0.1.1
[INFO] tweaked toml for crates.io crate mcp2221 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mcp2221 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 mcp2221 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] f69ed328b8301468c6a1dddfaf47c03d367e6188f7cb8e59f435ca1c34efcd3d
[INFO] running `Command { std: "docker" "start" "-a" "f69ed328b8301468c6a1dddfaf47c03d367e6188f7cb8e59f435ca1c34efcd3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f69ed328b8301468c6a1dddfaf47c03d367e6188f7cb8e59f435ca1c34efcd3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f69ed328b8301468c6a1dddfaf47c03d367e6188f7cb8e59f435ca1c34efcd3d", kill_on_drop: false }`
[INFO] [stdout] f69ed328b8301468c6a1dddfaf47c03d367e6188f7cb8e59f435ca1c34efcd3d
[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] 3ae626d9e287cdeab72ed8f7d06f7a1b4bad2588135199d9e9e51d7edf36a1db
[INFO] running `Command { std: "docker" "start" "-a" "3ae626d9e287cdeab72ed8f7d06f7a1b4bad2588135199d9e9e51d7edf36a1db", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling rusb v0.8.1
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling libusb1-sys v0.5.0
[INFO] [stderr]    Compiling mcp2221 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `Command { std: "docker" "inspect" "3ae626d9e287cdeab72ed8f7d06f7a1b4bad2588135199d9e9e51d7edf36a1db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ae626d9e287cdeab72ed8f7d06f7a1b4bad2588135199d9e9e51d7edf36a1db", kill_on_drop: false }`
[INFO] [stdout] 3ae626d9e287cdeab72ed8f7d06f7a1b4bad2588135199d9e9e51d7edf36a1db
[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] 442730546d7771e164f388adbc80228af241ab765ff847b014b9857ab99c3340
[INFO] running `Command { std: "docker" "start" "-a" "442730546d7771e164f388adbc80228af241ab765ff847b014b9857ab99c3340", kill_on_drop: false }`
[INFO] [stderr]    Compiling mcp2221 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "442730546d7771e164f388adbc80228af241ab765ff847b014b9857ab99c3340", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "442730546d7771e164f388adbc80228af241ab765ff847b014b9857ab99c3340", kill_on_drop: false }`
[INFO] [stdout] 442730546d7771e164f388adbc80228af241ab765ff847b014b9857ab99c3340
[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] 60678d94e5426b6f39bbdbcbbdf36b6343bb6c0e5cffec42bd0b96736b12cd40
[INFO] running `Command { std: "docker" "start" "-a" "60678d94e5426b6f39bbdbcbbdf36b6343bb6c0e5cffec42bd0b96736b12cd40", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mcp2221-c133ba4a002bd1c2)
[INFO] [stderr]    Doc-tests mcp2221
[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] [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" "60678d94e5426b6f39bbdbcbbdf36b6343bb6c0e5cffec42bd0b96736b12cd40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60678d94e5426b6f39bbdbcbbdf36b6343bb6c0e5cffec42bd0b96736b12cd40", kill_on_drop: false }`
[INFO] [stdout] 60678d94e5426b6f39bbdbcbbdf36b6343bb6c0e5cffec42bd0b96736b12cd40