[INFO] updating cached repository https://github.com/adriankumpf/abacom-relay-board [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 69c517caf8fafbf9b3ffffad684a448fc060d7dd [INFO] testing adriankumpf/abacom-relay-board against 1.38.0 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadriankumpf%2Fabacom-relay-board" "work/builds/worker-8/source"` [INFO] [stderr] Cloning into 'work/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/adriankumpf/abacom-relay-board on toolchain 1.38.0 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/adriankumpf/abacom-relay-board [INFO] finished tweaking git repo https://github.com/adriankumpf/abacom-relay-board [INFO] tweaked toml for git repo https://github.com/adriankumpf/abacom-relay-board written to work/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/adriankumpf/abacom-relay-board already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /big/crater/work/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Updating git repository `https://github.com/otavio/libusb-rs` [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"` [INFO] [stdout] bae128d8c6972c0d0b240a60ac7c317cffbabf5757873cd52a32e0ec4e348a1f [INFO] running `"docker" "start" "-a" "bae128d8c6972c0d0b240a60ac7c317cffbabf5757873cd52a32e0ec4e348a1f"` [INFO] [stderr] Compiling bit-vec v0.5.1 [INFO] [stderr] Compiling libusb-sys v0.2.3 [INFO] [stderr] Compiling bit-set v0.5.1 [INFO] [stderr] Compiling libusb v0.3.0 (https://github.com/otavio/libusb-rs#8484c35d) [INFO] [stderr] Compiling arb v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.87s [INFO] running `"docker" "inspect" "bae128d8c6972c0d0b240a60ac7c317cffbabf5757873cd52a32e0ec4e348a1f"` [INFO] running `"docker" "rm" "-f" "bae128d8c6972c0d0b240a60ac7c317cffbabf5757873cd52a32e0ec4e348a1f"` [INFO] [stdout] bae128d8c6972c0d0b240a60ac7c317cffbabf5757873cd52a32e0ec4e348a1f [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 21512bbae37e5197b19714a6163a23fc08a0f873bcfa9e8808e010c0057ecf83 [INFO] running `"docker" "start" "-a" "21512bbae37e5197b19714a6163a23fc08a0f873bcfa9e8808e010c0057ecf83"` [INFO] [stderr] Compiling arb v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.05s [INFO] running `"docker" "inspect" "21512bbae37e5197b19714a6163a23fc08a0f873bcfa9e8808e010c0057ecf83"` [INFO] running `"docker" "rm" "-f" "21512bbae37e5197b19714a6163a23fc08a0f873bcfa9e8808e010c0057ecf83"` [INFO] [stdout] 21512bbae37e5197b19714a6163a23fc08a0f873bcfa9e8808e010c0057ecf83 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"` [INFO] [stdout] 6902fb03854c4d1b26c017b6d40e51a147e91e13f8be4128b730b74259ecfe85 [INFO] running `"docker" "start" "-a" "6902fb03854c4d1b26c017b6d40e51a147e91e13f8be4128b730b74259ecfe85"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/arb-93b1825a6b99c87f [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 [INFO] [stdout] [INFO] [stderr] Doc-tests arb [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/lib.rs - set_status (line 185) ... FAILED [INFO] [stdout] test src/lib.rs - reset (line 206) ... FAILED [INFO] [stdout] test src/lib.rs - get_status (line 150) ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - set_status (line 185) stdout ---- [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`) [INFO] [stdout] --> src/lib.rs:187:1 [INFO] [stdout] | [INFO] [stdout] 5 | arb::set_status(55, true, None)?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::ops::Try` is not implemented for `()` [INFO] [stdout] = note: required by `std::ops::Try::from_error` [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - reset (line 206) stdout ---- [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`) [INFO] [stdout] --> src/lib.rs:207:1 [INFO] [stdout] | [INFO] [stdout] 4 | arb::reset(None)?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::ops::Try` is not implemented for `()` [INFO] [stdout] = note: required by `std::ops::Try::from_error` [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - reset (line 206) [INFO] [stdout] src/lib.rs - set_status (line 185) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 1 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `"docker" "inspect" "6902fb03854c4d1b26c017b6d40e51a147e91e13f8be4128b730b74259ecfe85"` [INFO] running `"docker" "rm" "-f" "6902fb03854c4d1b26c017b6d40e51a147e91e13f8be4128b730b74259ecfe85"` [INFO] [stdout] 6902fb03854c4d1b26c017b6d40e51a147e91e13f8be4128b730b74259ecfe85