[INFO] updating cached repository adriankumpf/abacom-relay-board
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/adriankumpf/abacom-relay-board
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/adriankumpf/abacom-relay-board" "work/ex/beta-1.37-6/sources/1.36.0/gh/adriankumpf/abacom-relay-board"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/adriankumpf/abacom-relay-board'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/adriankumpf/abacom-relay-board" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/adriankumpf/abacom-relay-board"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/adriankumpf/abacom-relay-board'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 69c517caf8fafbf9b3ffffad684a448fc060d7dd
[INFO] sha for GitHub repo adriankumpf/abacom-relay-board: 69c517caf8fafbf9b3ffffad684a448fc060d7dd
[INFO] validating manifest of adriankumpf/abacom-relay-board on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of adriankumpf/abacom-relay-board on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing adriankumpf/abacom-relay-board
[INFO] finished frobbing adriankumpf/abacom-relay-board
[INFO] frobbed toml for adriankumpf/abacom-relay-board written to work/ex/beta-1.37-6/sources/1.36.0/gh/adriankumpf/abacom-relay-board/Cargo.toml
[INFO] started frobbing adriankumpf/abacom-relay-board
[INFO] finished frobbing adriankumpf/abacom-relay-board
[INFO] frobbed toml for adriankumpf/abacom-relay-board written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/adriankumpf/abacom-relay-board/Cargo.toml
[INFO] crate adriankumpf/abacom-relay-board already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/adriankumpf/abacom-relay-board/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/otavio/libusb-rs`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/otavio/libusb-rs`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing adriankumpf/abacom-relay-board against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/adriankumpf/abacom-relay-board:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 056b5e64b5de34de05740da5e8175e21969d205d9e1ca8f21dea45299e4f9855
[INFO] running `"docker" "start" "-a" "056b5e64b5de34de05740da5e8175e21969d205d9e1ca8f21dea45299e4f9855"`
[INFO] [stderr]    Compiling libusb-sys v0.2.3
[INFO] [stderr]    Compiling libusb v0.3.0 (https://github.com/otavio/libusb-rs#8484c35d)
[INFO] [stderr]    Compiling arb v0.4.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.76s
[INFO] running `"docker" "inspect" "056b5e64b5de34de05740da5e8175e21969d205d9e1ca8f21dea45299e4f9855"`
[INFO] running `"docker" "rm" "-f" "056b5e64b5de34de05740da5e8175e21969d205d9e1ca8f21dea45299e4f9855"`
[INFO] [stdout] 056b5e64b5de34de05740da5e8175e21969d205d9e1ca8f21dea45299e4f9855
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/adriankumpf/abacom-relay-board:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7380bd6245cfd91c6a526a08c1253031043383e917382bb4c25db8f2688c8f57
[INFO] running `"docker" "start" "-a" "7380bd6245cfd91c6a526a08c1253031043383e917382bb4c25db8f2688c8f57"`
[INFO] [stderr]    Compiling arb v0.4.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "7380bd6245cfd91c6a526a08c1253031043383e917382bb4c25db8f2688c8f57"`
[INFO] running `"docker" "rm" "-f" "7380bd6245cfd91c6a526a08c1253031043383e917382bb4c25db8f2688c8f57"`
[INFO] [stdout] 7380bd6245cfd91c6a526a08c1253031043383e917382bb4c25db8f2688c8f57
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/adriankumpf/abacom-relay-board:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] c0f10a98a570c5748134f6dce9e6b6eec9654136178c857f467a44ec16a45b83
[INFO] running `"docker" "start" "-a" "c0f10a98a570c5748134f6dce9e6b6eec9654136178c857f467a44ec16a45b83"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/arb-c22389bfdfc2b59b
[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 - reset (line 206) ... FAILED
[INFO] [stdout] test src/lib.rs - set_status (line 185) ... FAILED
[INFO] [stdout] test src/lib.rs - get_status (line 150) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[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] ---- 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] 
[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" "c0f10a98a570c5748134f6dce9e6b6eec9654136178c857f467a44ec16a45b83"`
[INFO] running `"docker" "rm" "-f" "c0f10a98a570c5748134f6dce9e6b6eec9654136178c857f467a44ec16a45b83"`
[INFO] [stdout] c0f10a98a570c5748134f6dce9e6b6eec9654136178c857f467a44ec16a45b83