[INFO] cloning repository https://github.com/dotcypress/st7032i
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dotcypress/st7032i" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdotcypress%2Fst7032i", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdotcypress%2Fst7032i'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2eaf63af371652660b98c12bfb1702b303ef9cf7
[INFO] testing dotcypress/st7032i against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdotcypress%2Fst7032i" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[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-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dotcypress/st7032i on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dotcypress/st7032i already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v0.4.0
[INFO] [stderr]   Downloaded linux-embedded-hal v0.2.2
[INFO] [stderr]   Downloaded spidev v0.3.0
[INFO] [stderr]   Downloaded i2cdev v0.4.2
[INFO] [stderr]   Downloaded cast v0.2.2
[INFO] [stderr]   Downloaded sysfs_gpio v0.5.4
[INFO] [stderr]   Downloaded cc v1.0.46
[INFO] [stderr]   Downloaded bitflags v0.3.3
[INFO] [stderr]   Downloaded nix v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0efccab779b155d3ff573db28b805a0d209d1fbcb8a6670d470f32e02a13f1a
[INFO] running `Command { std: "docker" "start" "-a" "d0efccab779b155d3ff573db28b805a0d209d1fbcb8a6670d470f32e02a13f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0efccab779b155d3ff573db28b805a0d209d1fbcb8a6670d470f32e02a13f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0efccab779b155d3ff573db28b805a0d209d1fbcb8a6670d470f32e02a13f1a", kill_on_drop: false }`
[INFO] [stdout] d0efccab779b155d3ff573db28b805a0d209d1fbcb8a6670d470f32e02a13f1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0ea85f8b7493cc6dac1e094bcdf8cdc54abc7d835a1e80a855752a7e2823491
[INFO] running `Command { std: "docker" "start" "-a" "e0ea85f8b7493cc6dac1e094bcdf8cdc54abc7d835a1e80a855752a7e2823491", kill_on_drop: false }`
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nb v0.1.2
[INFO] [stderr]    Compiling embedded-hal v0.2.3
[INFO] [stderr]    Compiling st7032i v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "e0ea85f8b7493cc6dac1e094bcdf8cdc54abc7d835a1e80a855752a7e2823491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ea85f8b7493cc6dac1e094bcdf8cdc54abc7d835a1e80a855752a7e2823491", kill_on_drop: false }`
[INFO] [stdout] e0ea85f8b7493cc6dac1e094bcdf8cdc54abc7d835a1e80a855752a7e2823491
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2cf8249a1d931306c0161bef34aa2854c26fab34722263944c4ce9fe39c29e9d
[INFO] running `Command { std: "docker" "start" "-a" "2cf8249a1d931306c0161bef34aa2854c26fab34722263944c4ce9fe39c29e9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling spidev v0.3.0
[INFO] [stderr]    Compiling sysfs_gpio v0.5.4
[INFO] [stderr]    Compiling i2cdev v0.4.2
[INFO] [stderr]    Compiling linux-embedded-hal v0.2.2
[INFO] [stderr]    Compiling st7032i v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.29s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.4.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "2cf8249a1d931306c0161bef34aa2854c26fab34722263944c4ce9fe39c29e9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cf8249a1d931306c0161bef34aa2854c26fab34722263944c4ce9fe39c29e9d", kill_on_drop: false }`
[INFO] [stdout] 2cf8249a1d931306c0161bef34aa2854c26fab34722263944c4ce9fe39c29e9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f65eed9a7b0a3482122017a5c8d71154ede02db888478ba980084f2ddf9f95c7
[INFO] running `Command { std: "docker" "start" "-a" "f65eed9a7b0a3482122017a5c8d71154ede02db888478ba980084f2ddf9f95c7", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.4.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/st7032i-4df029dfb886aac4)
[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] [stderr]    Doc-tests st7032i
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 23) - compile ... 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 `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:30:36
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn main() {
[INFO] [stdout]    | --------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 30 | let dev = I2cdev::new("/dev/i2c-1")?;
[INFO] [stdout]    |                                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 29 ~ fn main() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 30 | let dev = I2cdev::new("/dev/i2c-1")?;
[INFO] [stdout] ...
[INFO] [stdout] 35 | write!(display, "Rust")?;
[INFO] [stdout] 36 +     Ok(())
[INFO] [stdout]    |
[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/lib.rs:32:15
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn main() {
[INFO] [stdout]    | --------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 32 | display.init()?;
[INFO] [stdout]    |               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 29 ~ fn main() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 30 | let dev = I2cdev::new("/dev/i2c-1")?;
[INFO] [stdout] ...
[INFO] [stdout] 35 | write!(display, "Rust")?;
[INFO] [stdout] 36 +     Ok(())
[INFO] [stdout]    |
[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/lib.rs:33:25
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn main() {
[INFO] [stdout]    | --------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 33 | write!(display, "Hello")?;
[INFO] [stdout]    |                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 29 ~ fn main() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 30 | let dev = I2cdev::new("/dev/i2c-1")?;
[INFO] [stdout] ...
[INFO] [stdout] 35 | write!(display, "Rust")?;
[INFO] [stdout] 36 +     Ok(())
[INFO] [stdout]    |
[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/lib.rs:34:26
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn main() {
[INFO] [stdout]    | --------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 34 | display.move_cursor(1, 0)?;
[INFO] [stdout]    |                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 29 ~ fn main() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 30 | let dev = I2cdev::new("/dev/i2c-1")?;
[INFO] [stdout] ...
[INFO] [stdout] 35 | write!(display, "Rust")?;
[INFO] [stdout] 36 +     Ok(())
[INFO] [stdout]    |
[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/lib.rs:35:24
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn main() {
[INFO] [stdout]    | --------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 35 | write!(display, "Rust")?;
[INFO] [stdout]    |                        ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 29 ~ fn main() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 30 | let dev = I2cdev::new("/dev/i2c-1")?;
[INFO] [stdout] ...
[INFO] [stdout] 35 | write!(display, "Rust")?;
[INFO] [stdout] 36 +     Ok(())
[INFO] [stdout]    |
[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; finished in 0.28s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "f65eed9a7b0a3482122017a5c8d71154ede02db888478ba980084f2ddf9f95c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f65eed9a7b0a3482122017a5c8d71154ede02db888478ba980084f2ddf9f95c7", kill_on_drop: false }`
[INFO] [stdout] f65eed9a7b0a3482122017a5c8d71154ede02db888478ba980084f2ddf9f95c7
