[INFO] fetching crate usbapi 0.4.2...
[INFO] testing usbapi-0.4.2 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate usbapi 0.4.2 into /workspace/builds/worker-104/source
[INFO] validating manifest of crates.io crate usbapi 0.4.2 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate usbapi 0.4.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate usbapi 0.4.2
[INFO] tweaked toml for crates.io crate usbapi 0.4.2 written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] crate crates.io crate usbapi 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50f61a2d7f5fcd75cefca0c110a8a9264cb0362db0cb2773b801286cd28a22e4
[INFO] running `Command { std: "docker" "start" "-a" "50f61a2d7f5fcd75cefca0c110a8a9264cb0362db0cb2773b801286cd28a22e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50f61a2d7f5fcd75cefca0c110a8a9264cb0362db0cb2773b801286cd28a22e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50f61a2d7f5fcd75cefca0c110a8a9264cb0362db0cb2773b801286cd28a22e4", kill_on_drop: false }`
[INFO] [stdout] 50f61a2d7f5fcd75cefca0c110a8a9264cb0362db0cb2773b801286cd28a22e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fee8a73b46800487fd7c071dac9c647f730b938ff8e0f788575b5af787be9238
[INFO] running `Command { std: "docker" "start" "-a" "fee8a73b46800487fd7c071dac9c647f730b938ff8e0f788575b5af787be9238", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling sysfs-serde v0.2.3
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling usbapi v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.38s
[INFO] running `Command { std: "docker" "inspect" "fee8a73b46800487fd7c071dac9c647f730b938ff8e0f788575b5af787be9238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fee8a73b46800487fd7c071dac9c647f730b938ff8e0f788575b5af787be9238", kill_on_drop: false }`
[INFO] [stdout] fee8a73b46800487fd7c071dac9c647f730b938ff8e0f788575b5af787be9238
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c56bdfd1ea836d385d0cfdff24caa52efb7748ea629f7577d842efd261bae6b7
[INFO] running `Command { std: "docker" "start" "-a" "c56bdfd1ea836d385d0cfdff24caa52efb7748ea629f7577d842efd261bae6b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling signal-hook v0.3.8
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling simple_logger v1.11.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling usbapi v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::ErrorKind`
[INFO] [stdout]  --> examples/read_strings.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::ErrorKind;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> examples/read_strings.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `Ordering`
[INFO] [stdout]  --> examples/read_strings.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::atomic::{AtomicBool, Ordering};
[INFO] [stdout]   |                         ^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> examples/read_strings.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`
[INFO] [stdout]  --> examples/read_strings.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                 ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `usbapi::endpoint::Endpoint`
[INFO] [stdout]  --> examples/read_strings.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use usbapi::endpoint::Endpoint;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.98s
[INFO] running `Command { std: "docker" "inspect" "c56bdfd1ea836d385d0cfdff24caa52efb7748ea629f7577d842efd261bae6b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c56bdfd1ea836d385d0cfdff24caa52efb7748ea629f7577d842efd261bae6b7", kill_on_drop: false }`
[INFO] [stdout] c56bdfd1ea836d385d0cfdff24caa52efb7748ea629f7577d842efd261bae6b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b38316f8fdaa1fa0cfb62cb51f6e0ddc287a116567829730b59ac7d3b8be07f6
[INFO] running `Command { std: "docker" "start" "-a" "b38316f8fdaa1fa0cfb62cb51f6e0ddc287a116567829730b59ac7d3b8be07f6", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::io::ErrorKind`
[INFO] [stderr]  --> examples/read_strings.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::ErrorKind;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> examples/read_strings.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `AtomicBool`, `Ordering`
[INFO] [stderr]  --> examples/read_strings.rs:3:25
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::sync::atomic::{AtomicBool, Ordering};
[INFO] [stderr]   |                         ^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]  --> examples/read_strings.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::sync::Arc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Duration`, `Instant`
[INFO] [stderr]  --> examples/read_strings.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::{Duration, Instant};
[INFO] [stderr]   |                 ^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `usbapi::endpoint::Endpoint`
[INFO] [stderr]  --> examples/read_strings.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use usbapi::endpoint::Endpoint;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `usbapi` (example "read_strings") generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/usbapi-5b3926ffcabfaa7f)
[INFO] [stderr]    Doc-tests usbapi
[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 5 tests
[INFO] [stdout] test src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::release_interface (line 388) ... FAILED
[INFO] [stdout] test src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::async_response (line 275) ... FAILED
[INFO] [stdout] test src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::claim_interface (line 350) ... FAILED
[INFO] [stdout] test src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::submit_bulk (line 547) ... FAILED
[INFO] [stdout] test src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::async_response_all (line 313) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::release_interface (line 388) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `usb` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:389:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | usb.release_interface(1)
[INFO] [stdout]   | ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::async_response (line 275) stdout ----
[INFO] [stdout] error: this file contains an unclosed delimiter
[INFO] [stdout]   --> src/os/linux/usbfs.rs:284:48
[INFO] [stdout]    |
[INFO] [stdout] 2  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_os_linux_usbfs_rs_275_0() {
[INFO] [stdout]    |           - unclosed delimiter
[INFO] [stdout] ...
[INFO] [stdout] 7  |    Ok(transfer) => { // do stuff }
[INFO] [stdout]    |                    - this delimiter might not be properly closed...
[INFO] [stdout] ...
[INFO] [stdout] 10 | }
[INFO] [stdout]    | - ...as it matches this but it has different indentation
[INFO] [stdout] 11 | } _doctest_main_src_os_linux_usbfs_rs_275_0() }
[INFO] [stdout]    |                                                ^
[INFO] [stdout] 
[INFO] [stdout] error: expected `;`, found keyword `match`
[INFO] [stdout]  --> src/os/linux/usbfs.rs:278:31
[INFO] [stdout]   |
[INFO] [stdout] 5 | let urb = usb.async_response()
[INFO] [stdout]   |                               ^ help: add `;` here
[INFO] [stdout] 6 | match transfer {
[INFO] [stdout]   | ----- unexpected token
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found keyword `if`
[INFO] [stdout]  --> src/os/linux/usbfs.rs:281:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_os_linux_usbfs_rs_275_0() {
[INFO] [stdout]   |           - unclosed delimiter
[INFO] [stdout] ...
[INFO] [stdout] 8 |    Err(e) if e.kind() == ErrorKind::WouldBlock => {},
[INFO] [stdout]   |          -^^ expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout]   |          |
[INFO] [stdout]   |          help: `}` may belong here
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `usb` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:276:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mut urb = usb.new_bulk(1, 64);
[INFO] [stdout]   |               ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `usb` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:278:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | let urb = usb.async_response()
[INFO] [stdout]   |           ^^^ help: a local variable with a similar name exists: `urb`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `transfer` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:279:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | match transfer {
[INFO] [stdout]   |       ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::claim_interface (line 350) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `usb` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:351:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | usb.claim_interface(1)
[INFO] [stdout]   | ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::submit_bulk (line 547) stdout ----
[INFO] [stdout] error: this file contains an unclosed delimiter
[INFO] [stdout]  --> src/os/linux/usbfs.rs:554:48
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_os_linux_usbfs_rs_547_0() {
[INFO] [stdout]   |           - unclosed delimiter
[INFO] [stdout] ...
[INFO] [stdout] 9 | } _doctest_main_src_os_linux_usbfs_rs_547_0() }
[INFO] [stdout]   |                                                ^
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `bulk_out` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:548:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | bulk_out.flush()?;
[INFO] [stdout]   | ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `bulk` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:549:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | bulk.write_all(&b"HELLO\n")?;
[INFO] [stdout]   | ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `usb` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:550:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | usb.submit_bulk(bulk);
[INFO] [stdout]   | ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `bulk` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:550:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | usb.submit_bulk(bulk);
[INFO] [stdout]   |                 ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `resp` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:552:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | resp = usb.async_response();
[INFO] [stdout]   | ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `usb` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:552:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | resp = usb.async_response();
[INFO] [stdout]   |        ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `resp` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:553:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | match resp { // do stuff }
[INFO] [stdout]   |       ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/os/linux/usbfs.rs:548:17
[INFO] [stdout]     |
[INFO] [stdout] 2   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_os_linux_usbfs_rs_547_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 3   | | bulk_out.flush()?;
[INFO] [stdout]     | |                 ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 4   | | bulk.write_all(&b"HELLO\n")?;
[INFO] [stdout] 5   | | usb.submit_bulk(bulk);
[INFO] [stdout] ...   |
[INFO] [stdout] 8   | | match resp { // do stuff }
[INFO] [stdout] 9   | | } _doctest_main_src_os_linux_usbfs_rs_547_0() }
[INFO] [stdout]     | |_______________________________________________- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/os/linux/usbfs.rs:549:28
[INFO] [stdout]     |
[INFO] [stdout] 2   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_os_linux_usbfs_rs_547_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 3   | | bulk_out.flush()?;
[INFO] [stdout] 4   | | bulk.write_all(&b"HELLO\n")?;
[INFO] [stdout]     | |                            ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 5   | | usb.submit_bulk(bulk);
[INFO] [stdout] ...   |
[INFO] [stdout] 8   | | match resp { // do stuff }
[INFO] [stdout] 9   | | } _doctest_main_src_os_linux_usbfs_rs_547_0() }
[INFO] [stdout]     | |_______________________________________________- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::async_response_all (line 313) stdout ----
[INFO] [stdout] error: this file contains an unclosed delimiter
[INFO] [stdout]  --> src/os/linux/usbfs.rs:320:48
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_os_linux_usbfs_rs_313_0() {
[INFO] [stdout]   |           - unclosed delimiter
[INFO] [stdout] ...
[INFO] [stdout] 7 |     for transfer in usb.collect_responses() { // Do stuff }
[INFO] [stdout]   |                                             - this delimiter might not be properly closed...
[INFO] [stdout] 8 | }
[INFO] [stdout]   | - ...as it matches this but it has different indentation
[INFO] [stdout] 9 | } _doctest_main_src_os_linux_usbfs_rs_313_0() }
[INFO] [stdout]   |                                                ^
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `usb` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:314:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | usb.submit_bulk(bulk);
[INFO] [stdout]   | ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `bulk` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:314:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | usb.submit_bulk(bulk);
[INFO] [stdout]   |                 ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `poll` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:315:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | poll.poll(&mut events, Duration::from_secs(1))?;
[INFO] [stdout]   | ^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 2 | use libc::poll;
[INFO] [stdout]   |
[INFO] [stdout] 2 | use nix::poll::poll;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `events` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:315:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | poll.poll(&mut events, Duration::from_secs(1))?;
[INFO] [stdout]   |                ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Duration`
[INFO] [stdout]  --> src/os/linux/usbfs.rs:315:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | poll.poll(&mut events, Duration::from_secs(1))?;
[INFO] [stdout]   |                        ^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::time::Duration;
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::time::Duration;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `events` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:316:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | if !events.is_empty() {
[INFO] [stdout]   |     ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `usb` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:317:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     usb.async_response_all()?;
[INFO] [stdout]   |     ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `usb` in this scope
[INFO] [stdout]  --> src/os/linux/usbfs.rs:318:21
[INFO] [stdout]   |
[INFO] [stdout] 7 |     for transfer in usb.collect_responses() { // Do stuff }
[INFO] [stdout]   |                     ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/os/linux/usbfs.rs:315:47
[INFO] [stdout]     |
[INFO] [stdout] 2   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_os_linux_usbfs_rs_313_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 3   | | usb.submit_bulk(bulk);
[INFO] [stdout] 4   | | poll.poll(&mut events, Duration::from_secs(1))?;
[INFO] [stdout]     | |                                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 5   | | if !events.is_empty() {
[INFO] [stdout] ...   |
[INFO] [stdout] 8   | | }
[INFO] [stdout] 9   | | } _doctest_main_src_os_linux_usbfs_rs_313_0() }
[INFO] [stdout]     | |_______________________________________________- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/os/linux/usbfs.rs:317:29
[INFO] [stdout]     |
[INFO] [stdout] 2   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_os_linux_usbfs_rs_313_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 3   | | usb.submit_bulk(bulk);
[INFO] [stdout] 4   | | poll.poll(&mut events, Duration::from_secs(1))?;
[INFO] [stdout] 5   | | if !events.is_empty() {
[INFO] [stdout] 6   | |     usb.async_response_all()?;
[INFO] [stdout]     | |                             ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 7   | |     for transfer in usb.collect_responses() { // Do stuff }
[INFO] [stdout] 8   | | }
[INFO] [stdout] 9   | | } _doctest_main_src_os_linux_usbfs_rs_313_0() }
[INFO] [stdout]     | |_______________________________________________- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 11 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::async_response (line 275)
[INFO] [stdout]     src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::async_response_all (line 313)
[INFO] [stdout]     src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::claim_interface (line 350)
[INFO] [stdout]     src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::release_interface (line 388)
[INFO] [stdout]     src/os/linux/usbfs.rs - os::linux::usbfs::UsbFs::submit_bulk (line 547)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 5 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.25s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "b38316f8fdaa1fa0cfb62cb51f6e0ddc287a116567829730b59ac7d3b8be07f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b38316f8fdaa1fa0cfb62cb51f6e0ddc287a116567829730b59ac7d3b8be07f6", kill_on_drop: false }`
[INFO] [stdout] b38316f8fdaa1fa0cfb62cb51f6e0ddc287a116567829730b59ac7d3b8be07f6
