[INFO] updating cached repository https://github.com/dotcypress/st7032i [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 2eaf63af371652660b98c12bfb1702b303ef9cf7 [INFO] testing dotcypress/st7032i against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdotcypress%2Fst7032i" "/workspace/builds/worker-8/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dotcypress/st7032i on toolchain 41997647ba6a77908f6ef64401414feb00bccf16 [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/dotcypress/st7032i [INFO] finished tweaking git repo https://github.com/dotcypress/st7032i [INFO] tweaked toml for git repo https://github.com/dotcypress/st7032i written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/dotcypress/st7032i already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 39cb4a0eed3f70b5db1bfd777688088d415bf991a9f7e945fd6d7e9364780fdf [INFO] running `"docker" "start" "-a" "39cb4a0eed3f70b5db1bfd777688088d415bf991a9f7e945fd6d7e9364780fdf"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling nb v0.1.2 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling embedded-hal v0.2.3 [INFO] [stderr] Compiling st7032i v0.0.4 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.35s [INFO] running `"docker" "inspect" "39cb4a0eed3f70b5db1bfd777688088d415bf991a9f7e945fd6d7e9364780fdf"` [INFO] running `"docker" "rm" "-f" "39cb4a0eed3f70b5db1bfd777688088d415bf991a9f7e945fd6d7e9364780fdf"` [INFO] [stdout] 39cb4a0eed3f70b5db1bfd777688088d415bf991a9f7e945fd6d7e9364780fdf [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 18145d533cdd8f0e351f8fd5bc5009e1e37feb399f0141f77d4f4eb8bcb17db6 [INFO] running `"docker" "start" "-a" "18145d533cdd8f0e351f8fd5bc5009e1e37feb399f0141f77d4f4eb8bcb17db6"` [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling cast v0.2.2 [INFO] [stderr] Compiling nix v0.6.0 [INFO] [stderr] Compiling spidev v0.3.0 [INFO] [stderr] Compiling i2cdev v0.4.2 [INFO] [stderr] Compiling sysfs_gpio v0.5.4 [INFO] [stderr] Compiling linux-embedded-hal v0.2.2 [INFO] [stderr] Compiling st7032i v0.0.4 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 14.84s [INFO] running `"docker" "inspect" "18145d533cdd8f0e351f8fd5bc5009e1e37feb399f0141f77d4f4eb8bcb17db6"` [INFO] running `"docker" "rm" "-f" "18145d533cdd8f0e351f8fd5bc5009e1e37feb399f0141f77d4f4eb8bcb17db6"` [INFO] [stdout] 18145d533cdd8f0e351f8fd5bc5009e1e37feb399f0141f77d4f4eb8bcb17db6 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 0c2be519a4baee4c5b3463474d45df35dd93c78e2fabd12a12ae7080ec8f7028 [INFO] running `"docker" "start" "-a" "0c2be519a4baee4c5b3463474d45df35dd93c78e2fabd12a12ae7080ec8f7028"` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.19s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/st7032i-d81f7b5054a7e02b [INFO] [stderr] Doc-tests st7032i [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] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/lib.rs - (line 23) ... FAILED [INFO] [stdout] test src/lib.rs - (line 16) ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 23) 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:29:11 [INFO] [stdout] | [INFO] [stdout] 7 | / fn main() { [INFO] [stdout] 8 | | let dev = I2cdev::new("/dev/i2c-1")?; [INFO] [stdout] | | ^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 9 | | let mut display = ST7032i::new(dev, Delay, 2); [INFO] [stdout] 10 | | display.init()?; [INFO] [stdout] ... | [INFO] [stdout] 13 | | write!(display, "Rust")?; [INFO] [stdout] 14 | | } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [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[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:31:1 [INFO] [stdout] | [INFO] [stdout] 7 | / fn main() { [INFO] [stdout] 8 | | let dev = I2cdev::new("/dev/i2c-1")?; [INFO] [stdout] 9 | | let mut display = ST7032i::new(dev, Delay, 2); [INFO] [stdout] 10 | | display.init()?; [INFO] [stdout] | | ^^^^^^^^^^^^^^^ [INFO] [stdout] | | | [INFO] [stdout] | | cannot use the `?` operator in a function that returns `()` [INFO] [stdout] ... | [INFO] [stdout] 13 | | write!(display, "Rust")?; [INFO] [stdout] 14 | | } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [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[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:32:1 [INFO] [stdout] | [INFO] [stdout] 7 | / fn main() { [INFO] [stdout] 8 | | let dev = I2cdev::new("/dev/i2c-1")?; [INFO] [stdout] 9 | | let mut display = ST7032i::new(dev, Delay, 2); [INFO] [stdout] 10 | | display.init()?; [INFO] [stdout] 11 | | write!(display, "Hello")?; [INFO] [stdout] | | ^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 12 | | display.move_cursor(1, 0)?; [INFO] [stdout] 13 | | write!(display, "Rust")?; [INFO] [stdout] 14 | | } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [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[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:33:1 [INFO] [stdout] | [INFO] [stdout] 7 | / fn main() { [INFO] [stdout] 8 | | let dev = I2cdev::new("/dev/i2c-1")?; [INFO] [stdout] 9 | | let mut display = ST7032i::new(dev, Delay, 2); [INFO] [stdout] 10 | | display.init()?; [INFO] [stdout] 11 | | write!(display, "Hello")?; [INFO] [stdout] 12 | | display.move_cursor(1, 0)?; [INFO] [stdout] | | ^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 13 | | write!(display, "Rust")?; [INFO] [stdout] 14 | | } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [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[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:34:1 [INFO] [stdout] | [INFO] [stdout] 7 | / fn main() { [INFO] [stdout] 8 | | let dev = I2cdev::new("/dev/i2c-1")?; [INFO] [stdout] 9 | | let mut display = ST7032i::new(dev, Delay, 2); [INFO] [stdout] 10 | | display.init()?; [INFO] [stdout] ... | [INFO] [stdout] 13 | | write!(display, "Rust")?; [INFO] [stdout] | | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | | [INFO] [stdout] | | cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 14 | | } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [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 5 previous errors [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 - (line 23) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `"docker" "inspect" "0c2be519a4baee4c5b3463474d45df35dd93c78e2fabd12a12ae7080ec8f7028"` [INFO] running `"docker" "rm" "-f" "0c2be519a4baee4c5b3463474d45df35dd93c78e2fabd12a12ae7080ec8f7028"` [INFO] [stdout] 0c2be519a4baee4c5b3463474d45df35dd93c78e2fabd12a12ae7080ec8f7028