[INFO] fetching crate usbd-serial 0.2.2...
[INFO] testing usbd-serial-0.2.2 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate usbd-serial 0.2.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate usbd-serial 0.2.2
[INFO] finished tweaking crates.io crate usbd-serial 0.2.2
[INFO] tweaked toml for crates.io crate usbd-serial 0.2.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate usbd-serial 0.2.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding embedded-hal v0.2.7 (available: v1.0.0)
[INFO] [stderr]       Adding embedded-io v0.6.1 (available: v0.7.1)
[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] [stderr]     Blocking waiting for file lock on package cache
[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] 9ba41f6a0341192e9cf76d30534c71ec8ea6b5aed9787a95deaee7ed81ca7107
[INFO] running `Command { std: "docker" "start" "-a" "9ba41f6a0341192e9cf76d30534c71ec8ea6b5aed9787a95deaee7ed81ca7107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ba41f6a0341192e9cf76d30534c71ec8ea6b5aed9787a95deaee7ed81ca7107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ba41f6a0341192e9cf76d30534c71ec8ea6b5aed9787a95deaee7ed81ca7107", kill_on_drop: false }`
[INFO] [stdout] 9ba41f6a0341192e9cf76d30534c71ec8ea6b5aed9787a95deaee7ed81ca7107
[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] 5f4359c778faf8aa8cfbcdaf230c7bdf47aecc099bdf9b8116b68ac3ad2458a5
[INFO] running `Command { std: "docker" "start" "-a" "5f4359c778faf8aa8cfbcdaf230c7bdf47aecc099bdf9b8116b68ac3ad2458a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling portable-atomic v1.11.1
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling embedded-io v0.6.1
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling usb-device v0.3.2
[INFO] [stderr]    Compiling usbd-serial v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `Command { std: "docker" "inspect" "5f4359c778faf8aa8cfbcdaf230c7bdf47aecc099bdf9b8116b68ac3ad2458a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4359c778faf8aa8cfbcdaf230c7bdf47aecc099bdf9b8116b68ac3ad2458a5", kill_on_drop: false }`
[INFO] [stdout] 5f4359c778faf8aa8cfbcdaf230c7bdf47aecc099bdf9b8116b68ac3ad2458a5
[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] 2d95bb94908bd6ee7a7ceb28ebdfd95cb3bfc750c06061b9a6a17a352a437aa0
[INFO] running `Command { std: "docker" "start" "-a" "2d95bb94908bd6ee7a7ceb28ebdfd95cb3bfc750c06061b9a6a17a352a437aa0", kill_on_drop: false }`
[INFO] [stderr]    Compiling usbd-serial v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "2d95bb94908bd6ee7a7ceb28ebdfd95cb3bfc750c06061b9a6a17a352a437aa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d95bb94908bd6ee7a7ceb28ebdfd95cb3bfc750c06061b9a6a17a352a437aa0", kill_on_drop: false }`
[INFO] [stdout] 2d95bb94908bd6ee7a7ceb28ebdfd95cb3bfc750c06061b9a6a17a352a437aa0
[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] 43b3c59afa666c8a9f04c424f821032da82e0751584d0a93149c25ba62249da9
[INFO] running `Command { std: "docker" "start" "-a" "43b3c59afa666c8a9f04c424f821032da82e0751584d0a93149c25ba62249da9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/usbd_serial-851bf997febbc289)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]    Doc-tests usbd_serial
[INFO] [stdout] test buffer::tests::read ... ok
[INFO] [stdout] test buffer::tests::write ... ok
[INFO] [stdout] test buffer::tests::discard ... ok
[INFO] [stdout] test buffer::tests::clear ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 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/lib.rs - (line 16) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 16) stdout ----
[INFO] [stdout] error: expected one of `,`, `.`, `?`, `}`, or an operator, found `=>`
[INFO] [stdout]   --> src/lib.rs:36:18
[INFO] [stdout]    |
[INFO] [stdout] 22 |         Err(err) => // An error occurred
[INFO] [stdout]    |                  ^^ expected one of `,`, `.`, `?`, `}`, or an operator
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `,`, `.`, `?`, `}`, or an operator, found `=>`
[INFO] [stdout]   --> src/lib.rs:44:18
[INFO] [stdout]    |
[INFO] [stdout] 30 |         Err(err) => // An error occurred
[INFO] [stdout]    |                  ^^ expected one of `,`, `.`, `?`, `}`, or an operator
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SerialPort`
[INFO] [stdout]  --> src/lib.rs:17:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mut serial = SerialPort::new(&usb_bus);
[INFO] [stdout]   |                  ^^^^^^^^^^ use of undeclared type `SerialPort`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use usbd_serial::SerialPort;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `usb_bus` in this scope
[INFO] [stdout]  --> src/lib.rs:17:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mut serial = SerialPort::new(&usb_bus);
[INFO] [stdout]   |                                   ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `UsbDeviceBuilder`
[INFO] [stdout]  --> src/lib.rs:19:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | let mut usb_dev = UsbDeviceBuilder::new(&usb_bus, UsbVidPid(0x16c0, 0x27dd))
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^ use of undeclared type `UsbDeviceBuilder`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use usb_device::prelude::UsbDeviceBuilder;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `usb_bus` in this scope
[INFO] [stdout]  --> src/lib.rs:19:42
[INFO] [stdout]   |
[INFO] [stdout] 5 | let mut usb_dev = UsbDeviceBuilder::new(&usb_bus, UsbVidPid(0x16c0, 0x27dd))
[INFO] [stdout]   |                                          ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function, tuple struct or tuple variant `UsbVidPid` in this scope
[INFO] [stdout]  --> src/lib.rs:19:51
[INFO] [stdout]   |
[INFO] [stdout] 5 | let mut usb_dev = UsbDeviceBuilder::new(&usb_bus, UsbVidPid(0x16c0, 0x27dd))
[INFO] [stdout]   |                                                   ^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this tuple struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use usb_device::prelude::UsbVidPid;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `USB_CLASS_CDC` in this scope
[INFO] [stdout]  --> src/lib.rs:21:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     .device_class(USB_CLASS_CDC)
[INFO] [stdout]   |                   ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this constant
[INFO] [stdout]   |
[INFO] [stdout] 2 + use usbd_serial::USB_CLASS_CDC;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 16)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "43b3c59afa666c8a9f04c424f821032da82e0751584d0a93149c25ba62249da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43b3c59afa666c8a9f04c424f821032da82e0751584d0a93149c25ba62249da9", kill_on_drop: false }`
[INFO] [stdout] 43b3c59afa666c8a9f04c424f821032da82e0751584d0a93149c25ba62249da9
