[INFO] crate gpiochip 0.1.1 is already in cache
[INFO] testing gpiochip-0.1.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate gpiochip 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gpiochip 0.1.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate gpiochip 0.1.1
[INFO] finished tweaking crates.io crate gpiochip 0.1.1
[INFO] tweaked toml for crates.io crate gpiochip 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=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" "+1.44.0" "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] cf1f4d8bf34c6a8933875ef841a7d4fdfc3d507540f338613fb876d9ba4f3b01
[INFO] running `"docker" "start" "-a" "cf1f4d8bf34c6a8933875ef841a7d4fdfc3d507540f338613fb876d9ba4f3b01"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling gpiochip v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:275:20
[INFO] [stderr]     |
[INFO] [stderr] 275 |         let size = try!(from_nix_result(nix::unistd::read(self.file.as_raw_fd(), &mut buf)));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:286:26
[INFO] [stderr]     |
[INFO] [stderr] 286 |         let mut bitmap = try!(wait_for_event(&[&self], 0));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:289:13
[INFO] [stderr]     |
[INFO] [stderr] 289 |             try!(self.read());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:290:22
[INFO] [stderr]     |
[INFO] [stderr] 290 |             bitmap = try!(wait_for_event(&[&self], 0));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:300:9
[INFO] [stderr]     |
[INFO] [stderr] 300 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:313:9
[INFO] [stderr]     |
[INFO] [stderr] 313 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:325:9
[INFO] [stderr]     |
[INFO] [stderr] 325 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:338:9
[INFO] [stderr]     |
[INFO] [stderr] 338 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:372:9
[INFO] [stderr]     |
[INFO] [stderr] 372 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:386:20
[INFO] [stderr]     |
[INFO] [stderr] 386 |         let file = try!(std::fs::File::open(path));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:387:36
[INFO] [stderr]     |
[INFO] [stderr] 387 |         let (name, label, lines) = try!(GpioChip::chipinfo(file.as_raw_fd()));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:397:9
[INFO] [stderr]     |
[INFO] [stderr] 397 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:423:9
[INFO] [stderr]     |
[INFO] [stderr] 423 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:458:9
[INFO] [stderr]     |
[INFO] [stderr] 458 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:480:9
[INFO] [stderr]     |
[INFO] [stderr] 480 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:393:49
[INFO] [stderr]     |
[INFO] [stderr] 393 |     pub fn info(&self, gpio: u32) -> io::Result<(LineInfo)> {
[INFO] [stderr]     |                                                 ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:408:102
[INFO] [stderr]     |
[INFO] [stderr] 408 |     pub fn request(&self, consumer: &str, flags: RequestFlags, gpio: u32, default: u8) -> io::Result<(GpioHandle)> {
[INFO] [stderr]     |                                                                                                      ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:431:122
[INFO] [stderr]     |
[INFO] [stderr] 431 |     pub fn request_array(&self, consumer: &str, flags: RequestFlags, gpios: &[u32], default_values: &[u8]) -> io::Result<(GpioArrayHandle)> {
[INFO] [stderr]     |                                                                                                                          ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:466:132
[INFO] [stderr]     |
[INFO] [stderr] 466 |     pub fn request_event(&self, consumer: &str, gpio: u32, handleflags: RequestFlags, eventflags: EventRequestFlags) -> io::Result<(GpioEventHandle)> {
[INFO] [stderr]     |                                                                                                                                    ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:491:83
[INFO] [stderr]     |
[INFO] [stderr] 491 | pub fn wait_for_event(events: &[&GpioEventHandle], timeout_ms: i32) -> io::Result<(u64)> {
[INFO] [stderr]     |                                                                                   ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.33s
[INFO] running `"docker" "inspect" "cf1f4d8bf34c6a8933875ef841a7d4fdfc3d507540f338613fb876d9ba4f3b01"`
[INFO] running `"docker" "rm" "-f" "cf1f4d8bf34c6a8933875ef841a7d4fdfc3d507540f338613fb876d9ba4f3b01"`
[INFO] [stdout] cf1f4d8bf34c6a8933875ef841a7d4fdfc3d507540f338613fb876d9ba4f3b01
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5fe4c5df90f18ca10945521c7abfd96c4d125c829b087ab3ffcfd29db60e1918
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "5fe4c5df90f18ca10945521c7abfd96c4d125c829b087ab3ffcfd29db60e1918"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling gpiochip v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:275:20
[INFO] [stderr]     |
[INFO] [stderr] 275 |         let size = try!(from_nix_result(nix::unistd::read(self.file.as_raw_fd(), &mut buf)));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:286:26
[INFO] [stderr]     |
[INFO] [stderr] 286 |         let mut bitmap = try!(wait_for_event(&[&self], 0));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:289:13
[INFO] [stderr]     |
[INFO] [stderr] 289 |             try!(self.read());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:290:22
[INFO] [stderr]     |
[INFO] [stderr] 290 |             bitmap = try!(wait_for_event(&[&self], 0));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:300:9
[INFO] [stderr]     |
[INFO] [stderr] 300 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:313:9
[INFO] [stderr]     |
[INFO] [stderr] 313 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:325:9
[INFO] [stderr]     |
[INFO] [stderr] 325 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:338:9
[INFO] [stderr]     |
[INFO] [stderr] 338 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:372:9
[INFO] [stderr]     |
[INFO] [stderr] 372 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:386:20
[INFO] [stderr]     |
[INFO] [stderr] 386 |         let file = try!(std::fs::File::open(path));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:387:36
[INFO] [stderr]     |
[INFO] [stderr] 387 |         let (name, label, lines) = try!(GpioChip::chipinfo(file.as_raw_fd()));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:397:9
[INFO] [stderr]     |
[INFO] [stderr] 397 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:423:9
[INFO] [stderr]     |
[INFO] [stderr] 423 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:458:9
[INFO] [stderr]     |
[INFO] [stderr] 458 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:480:9
[INFO] [stderr]     |
[INFO] [stderr] 480 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:393:49
[INFO] [stderr]     |
[INFO] [stderr] 393 |     pub fn info(&self, gpio: u32) -> io::Result<(LineInfo)> {
[INFO] [stderr]     |                                                 ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:408:102
[INFO] [stderr]     |
[INFO] [stderr] 408 |     pub fn request(&self, consumer: &str, flags: RequestFlags, gpio: u32, default: u8) -> io::Result<(GpioHandle)> {
[INFO] [stderr]     |                                                                                                      ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:431:122
[INFO] [stderr]     |
[INFO] [stderr] 431 |     pub fn request_array(&self, consumer: &str, flags: RequestFlags, gpios: &[u32], default_values: &[u8]) -> io::Result<(GpioArrayHandle)> {
[INFO] [stderr]     |                                                                                                                          ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:466:132
[INFO] [stderr]     |
[INFO] [stderr] 466 |     pub fn request_event(&self, consumer: &str, gpio: u32, handleflags: RequestFlags, eventflags: EventRequestFlags) -> io::Result<(GpioEventHandle)> {
[INFO] [stderr]     |                                                                                                                                    ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:491:83
[INFO] [stderr]     |
[INFO] [stderr] 491 | pub fn wait_for_event(events: &[&GpioEventHandle], timeout_ms: i32) -> io::Result<(u64)> {
[INFO] [stderr]     |                                                                                   ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:275:20
[INFO] [stderr]     |
[INFO] [stderr] 275 |         let size = try!(from_nix_result(nix::unistd::read(self.file.as_raw_fd(), &mut buf)));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:286:26
[INFO] [stderr]     |
[INFO] [stderr] 286 |         let mut bitmap = try!(wait_for_event(&[&self], 0));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:289:13
[INFO] [stderr]     |
[INFO] [stderr] 289 |             try!(self.read());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:290:22
[INFO] [stderr]     |
[INFO] [stderr] 290 |             bitmap = try!(wait_for_event(&[&self], 0));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:300:9
[INFO] [stderr]     |
[INFO] [stderr] 300 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:313:9
[INFO] [stderr]     |
[INFO] [stderr] 313 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:325:9
[INFO] [stderr]     |
[INFO] [stderr] 325 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:338:9
[INFO] [stderr]     |
[INFO] [stderr] 338 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:372:9
[INFO] [stderr]     |
[INFO] [stderr] 372 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:386:20
[INFO] [stderr]     |
[INFO] [stderr] 386 |         let file = try!(std::fs::File::open(path));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:387:36
[INFO] [stderr]     |
[INFO] [stderr] 387 |         let (name, label, lines) = try!(GpioChip::chipinfo(file.as_raw_fd()));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:397:9
[INFO] [stderr]     |
[INFO] [stderr] 397 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:423:9
[INFO] [stderr]     |
[INFO] [stderr] 423 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:458:9
[INFO] [stderr]     |
[INFO] [stderr] 458 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:480:9
[INFO] [stderr]     |
[INFO] [stderr] 480 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:393:49
[INFO] [stderr]     |
[INFO] [stderr] 393 |     pub fn info(&self, gpio: u32) -> io::Result<(LineInfo)> {
[INFO] [stderr]     |                                                 ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:408:102
[INFO] [stderr]     |
[INFO] [stderr] 408 |     pub fn request(&self, consumer: &str, flags: RequestFlags, gpio: u32, default: u8) -> io::Result<(GpioHandle)> {
[INFO] [stderr]     |                                                                                                      ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:431:122
[INFO] [stderr]     |
[INFO] [stderr] 431 |     pub fn request_array(&self, consumer: &str, flags: RequestFlags, gpios: &[u32], default_values: &[u8]) -> io::Result<(GpioArrayHandle)> {
[INFO] [stderr]     |                                                                                                                          ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:466:132
[INFO] [stderr]     |
[INFO] [stderr] 466 |     pub fn request_event(&self, consumer: &str, gpio: u32, handleflags: RequestFlags, eventflags: EventRequestFlags) -> io::Result<(GpioEventHandle)> {
[INFO] [stderr]     |                                                                                                                                    ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:491:83
[INFO] [stderr]     |
[INFO] [stderr] 491 | pub fn wait_for_event(events: &[&GpioEventHandle], timeout_ms: i32) -> io::Result<(u64)> {
[INFO] [stderr]     |                                                                                   ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "5fe4c5df90f18ca10945521c7abfd96c4d125c829b087ab3ffcfd29db60e1918"`
[INFO] running `"docker" "rm" "-f" "5fe4c5df90f18ca10945521c7abfd96c4d125c829b087ab3ffcfd29db60e1918"`
[INFO] [stdout] 5fe4c5df90f18ca10945521c7abfd96c4d125c829b087ab3ffcfd29db60e1918
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=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" "+1.44.0" "test" "--frozen"`
[INFO] [stdout] 7a54c6d1bffa319b6358a2bd6ce70ecde011175f7db69f5f50fe3935a03e3bd4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7a54c6d1bffa319b6358a2bd6ce70ecde011175f7db69f5f50fe3935a03e3bd4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:275:20
[INFO] [stderr]     |
[INFO] [stderr] 275 |         let size = try!(from_nix_result(nix::unistd::read(self.file.as_raw_fd(), &mut buf)));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:286:26
[INFO] [stderr]     |
[INFO] [stderr] 286 |         let mut bitmap = try!(wait_for_event(&[&self], 0));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:289:13
[INFO] [stderr]     |
[INFO] [stderr] 289 |             try!(self.read());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:290:22
[INFO] [stderr]     |
[INFO] [stderr] 290 |             bitmap = try!(wait_for_event(&[&self], 0));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:300:9
[INFO] [stderr]     |
[INFO] [stderr] 300 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:313:9
[INFO] [stderr]     |
[INFO] [stderr] 313 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:325:9
[INFO] [stderr]     |
[INFO] [stderr] 325 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:338:9
[INFO] [stderr]     |
[INFO] [stderr] 338 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:372:9
[INFO] [stderr]     |
[INFO] [stderr] 372 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:386:20
[INFO] [stderr]     |
[INFO] [stderr] 386 |         let file = try!(std::fs::File::open(path));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:387:36
[INFO] [stderr]     |
[INFO] [stderr] 387 |         let (name, label, lines) = try!(GpioChip::chipinfo(file.as_raw_fd()));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:397:9
[INFO] [stderr]     |
[INFO] [stderr] 397 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:423:9
[INFO] [stderr]     |
[INFO] [stderr] 423 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:458:9
[INFO] [stderr]     |
[INFO] [stderr] 458 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:480:9
[INFO] [stderr]     |
[INFO] [stderr] 480 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:393:49
[INFO] [stderr]     |
[INFO] [stderr] 393 |     pub fn info(&self, gpio: u32) -> io::Result<(LineInfo)> {
[INFO] [stderr]     |                                                 ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:408:102
[INFO] [stderr]     |
[INFO] [stderr] 408 |     pub fn request(&self, consumer: &str, flags: RequestFlags, gpio: u32, default: u8) -> io::Result<(GpioHandle)> {
[INFO] [stderr]     |                                                                                                      ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:431:122
[INFO] [stderr]     |
[INFO] [stderr] 431 |     pub fn request_array(&self, consumer: &str, flags: RequestFlags, gpios: &[u32], default_values: &[u8]) -> io::Result<(GpioArrayHandle)> {
[INFO] [stderr]     |                                                                                                                          ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:466:132
[INFO] [stderr]     |
[INFO] [stderr] 466 |     pub fn request_event(&self, consumer: &str, gpio: u32, handleflags: RequestFlags, eventflags: EventRequestFlags) -> io::Result<(GpioEventHandle)> {
[INFO] [stderr]     |                                                                                                                                    ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:491:83
[INFO] [stderr]     |
[INFO] [stderr] 491 | pub fn wait_for_event(events: &[&GpioEventHandle], timeout_ms: i32) -> io::Result<(u64)> {
[INFO] [stderr]     |                                                                                   ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:275:20
[INFO] [stderr]     |
[INFO] [stderr] 275 |         let size = try!(from_nix_result(nix::unistd::read(self.file.as_raw_fd(), &mut buf)));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:286:26
[INFO] [stderr]     |
[INFO] [stderr] 286 |         let mut bitmap = try!(wait_for_event(&[&self], 0));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:289:13
[INFO] [stderr]     |
[INFO] [stderr] 289 |             try!(self.read());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:290:22
[INFO] [stderr]     |
[INFO] [stderr] 290 |             bitmap = try!(wait_for_event(&[&self], 0));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:300:9
[INFO] [stderr]     |
[INFO] [stderr] 300 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:313:9
[INFO] [stderr]     |
[INFO] [stderr] 313 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:325:9
[INFO] [stderr]     |
[INFO] [stderr] 325 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:338:9
[INFO] [stderr]     |
[INFO] [stderr] 338 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:372:9
[INFO] [stderr]     |
[INFO] [stderr] 372 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:386:20
[INFO] [stderr]     |
[INFO] [stderr] 386 |         let file = try!(std::fs::File::open(path));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:387:36
[INFO] [stderr]     |
[INFO] [stderr] 387 |         let (name, label, lines) = try!(GpioChip::chipinfo(file.as_raw_fd()));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:397:9
[INFO] [stderr]     |
[INFO] [stderr] 397 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:423:9
[INFO] [stderr]     |
[INFO] [stderr] 423 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:458:9
[INFO] [stderr]     |
[INFO] [stderr] 458 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:480:9
[INFO] [stderr]     |
[INFO] [stderr] 480 |         try!(from_nix_result(unsafe {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:393:49
[INFO] [stderr]     |
[INFO] [stderr] 393 |     pub fn info(&self, gpio: u32) -> io::Result<(LineInfo)> {
[INFO] [stderr]     |                                                 ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:408:102
[INFO] [stderr]     |
[INFO] [stderr] 408 |     pub fn request(&self, consumer: &str, flags: RequestFlags, gpio: u32, default: u8) -> io::Result<(GpioHandle)> {
[INFO] [stderr]     |                                                                                                      ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:431:122
[INFO] [stderr]     |
[INFO] [stderr] 431 |     pub fn request_array(&self, consumer: &str, flags: RequestFlags, gpios: &[u32], default_values: &[u8]) -> io::Result<(GpioArrayHandle)> {
[INFO] [stderr]     |                                                                                                                          ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:466:132
[INFO] [stderr]     |
[INFO] [stderr] 466 |     pub fn request_event(&self, consumer: &str, gpio: u32, handleflags: RequestFlags, eventflags: EventRequestFlags) -> io::Result<(GpioEventHandle)> {
[INFO] [stderr]     |                                                                                                                                    ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:491:83
[INFO] [stderr]     |
[INFO] [stderr] 491 | pub fn wait_for_event(events: &[&GpioEventHandle], timeout_ms: i32) -> io::Result<(u64)> {
[INFO] [stderr]     |                                                                                   ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gpiochip-ebb4f357116a2ab4
[INFO] [stderr]    Doc-tests gpiochip
[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 3 tests
[INFO] [stdout] test src/lib.rs -  (line 50) ... FAILED
[INFO] [stdout] test src/lib.rs -  (line 36) ... FAILED
[INFO] [stdout] test src/lib.rs -  (line 13) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs -  (line 50) stdout ----
[INFO] [stdout] error[E0277]: `gpio::EventId` doesn't implement `std::fmt::Debug`
[INFO] [stdout]   --> src/lib.rs:64:65
[INFO] [stdout]    |
[INFO] [stdout] 15 |         println!("gpioA: event @ {:?} - {:?}", event.timestamp, event.id);
[INFO] [stdout]    |                                                                 ^^^^^^^^ `gpio::EventId` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Debug` is not implemented for `gpio::EventId`
[INFO] [stdout]    = note: required by `std::fmt::Debug::fmt`
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `gpio::EventId` doesn't implement `std::fmt::Debug`
[INFO] [stdout]   --> src/lib.rs:69:65
[INFO] [stdout]    |
[INFO] [stdout] 20 |         println!("gpioB: event @ {:?} - {:?}", event.timestamp, event.id);
[INFO] [stdout]    |                                                                 ^^^^^^^^ `gpio::EventId` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Debug` is not implemented for `gpio::EventId`
[INFO] [stdout]    = note: required by `std::fmt::Debug::fmt`
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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] ---- src/lib.rs -  (line 36) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }', src/lib.rs:6:16
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5571c624f384 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stdout]    1:     0x5571c624f384 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x5571c624f384 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stdout]    3:     0x5571c624f384 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stdout]    4:     0x5571c626d61c - core::fmt::write::hdaea18585065a96d
[INFO] [stdout]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stdout]    5:     0x5571c624db73 - std::io::Write::write_fmt::h0cea70c809005252
[INFO] [stdout]                                at src/libstd/io/mod.rs:1504
[INFO] [stdout]    6:     0x5571c6251925 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stdout]    7:     0x5571c6251925 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stdout]    8:     0x5571c6251925 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stdout]                                at src/libstd/panicking.rs:198
[INFO] [stdout]    9:     0x5571c6251662 - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stdout]                                at src/libstd/panicking.rs:218
[INFO] [stdout]   10:     0x5571c6251f32 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stdout]                                at src/libstd/panicking.rs:511
[INFO] [stdout]   11:     0x5571c6251b1b - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:419
[INFO] [stdout]   12:     0x5571c626ca01 - core::panicking::panic_fmt::h1ac71ad045d55416
[INFO] [stdout]                                at src/libcore/panicking.rs:111
[INFO] [stdout]   13:     0x5571c626c823 - core::option::expect_none_failed::hb40004d71d61b685
[INFO] [stdout]                                at src/libcore/option.rs:1268
[INFO] [stdout]   14:     0x5571c623f8fa - core::result::Result<T,E>::unwrap::hd391fa0c6de75c8d
[INFO] [stdout]   15:     0x5571c623fe0a - rust_out::main::hce5147e828914a17
[INFO] [stdout]   16:     0x5571c623f433 - std::rt::lang_start::{{closure}}::hb15f61f8249547b1
[INFO] [stdout]   17:     0x5571c6252378 - std::rt::lang_start_internal::{{closure}}::h7a212202ff76034b
[INFO] [stdout]                                at src/libstd/rt.rs:52
[INFO] [stdout]   18:     0x5571c6252378 - std::panicking::try::do_call::h6d214a73427d759b
[INFO] [stdout]                                at src/libstd/panicking.rs:331
[INFO] [stdout]   19:     0x5571c6252378 - std::panicking::try::hc078f0e11721d1cb
[INFO] [stdout]                                at src/libstd/panicking.rs:274
[INFO] [stdout]   20:     0x5571c6252378 - std::panic::catch_unwind::hb31c05be30625612
[INFO] [stdout]                                at src/libstd/panic.rs:394
[INFO] [stdout]   21:     0x5571c6252378 - std::rt::lang_start_internal::hcf7fb98a775d5af0
[INFO] [stdout]                                at src/libstd/rt.rs:51
[INFO] [stdout]   22:     0x5571c623f418 - std::rt::lang_start::h80cabc1387d7a5d8
[INFO] [stdout]   23:     0x5571c623ffeb - main
[INFO] [stdout]   24:     0x7f82727800b3 - __libc_start_main
[INFO] [stdout]   25:     0x5571c623f17e - _start
[INFO] [stdout]   26:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs -  (line 13) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }', src/lib.rs:6:16
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55ddb50454e4 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stdout]    1:     0x55ddb50454e4 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55ddb50454e4 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stdout]    3:     0x55ddb50454e4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stdout]    4:     0x55ddb50637ec - core::fmt::write::hdaea18585065a96d
[INFO] [stdout]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stdout]    5:     0x55ddb50439f3 - std::io::Write::write_fmt::h0cea70c809005252
[INFO] [stdout]                                at src/libstd/io/mod.rs:1504
[INFO] [stdout]    6:     0x55ddb5047a85 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stdout]    7:     0x55ddb5047a85 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stdout]    8:     0x55ddb5047a85 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stdout]                                at src/libstd/panicking.rs:198
[INFO] [stdout]    9:     0x55ddb50477c2 - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stdout]                                at src/libstd/panicking.rs:218
[INFO] [stdout]   10:     0x55ddb5048092 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stdout]                                at src/libstd/panicking.rs:511
[INFO] [stdout]   11:     0x55ddb5047c7b - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:419
[INFO] [stdout]   12:     0x55ddb5062bd1 - core::panicking::panic_fmt::h1ac71ad045d55416
[INFO] [stdout]                                at src/libcore/panicking.rs:111
[INFO] [stdout]   13:     0x55ddb50629f3 - core::option::expect_none_failed::hb40004d71d61b685
[INFO] [stdout]                                at src/libcore/option.rs:1268
[INFO] [stdout]   14:     0x55ddb5033e8a - core::result::Result<T,E>::unwrap::hd391fa0c6de75c8d
[INFO] [stdout]   15:     0x55ddb5034463 - rust_out::main::hce5147e828914a17
[INFO] [stdout]   16:     0x55ddb5033433 - std::rt::lang_start::{{closure}}::hb15f61f8249547b1
[INFO] [stdout]   17:     0x55ddb50484d8 - std::rt::lang_start_internal::{{closure}}::h7a212202ff76034b
[INFO] [stdout]                                at src/libstd/rt.rs:52
[INFO] [stdout]   18:     0x55ddb50484d8 - std::panicking::try::do_call::h6d214a73427d759b
[INFO] [stdout]                                at src/libstd/panicking.rs:331
[INFO] [stdout]   19:     0x55ddb50484d8 - std::panicking::try::hc078f0e11721d1cb
[INFO] [stdout]                                at src/libstd/panicking.rs:274
[INFO] [stdout]   20:     0x55ddb50484d8 - std::panic::catch_unwind::hb31c05be30625612
[INFO] [stdout]                                at src/libstd/panic.rs:394
[INFO] [stdout]   21:     0x55ddb50484d8 - std::rt::lang_start_internal::hcf7fb98a775d5af0
[INFO] [stdout]                                at src/libstd/rt.rs:51
[INFO] [stdout]   22:     0x55ddb5033418 - std::rt::lang_start::h80cabc1387d7a5d8
[INFO] [stdout]   23:     0x55ddb5034a5b - main
[INFO] [stdout]   24:     0x7f66943fd0b3 - __libc_start_main
[INFO] [stdout]   25:     0x55ddb503317e - _start
[INFO] [stdout]   26:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs -  (line 13)
[INFO] [stdout]     src/lib.rs -  (line 36)
[INFO] [stdout]     src/lib.rs -  (line 50)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "7a54c6d1bffa319b6358a2bd6ce70ecde011175f7db69f5f50fe3935a03e3bd4"`
[INFO] running `"docker" "rm" "-f" "7a54c6d1bffa319b6358a2bd6ce70ecde011175f7db69f5f50fe3935a03e3bd4"`
[INFO] [stdout] 7a54c6d1bffa319b6358a2bd6ce70ecde011175f7db69f5f50fe3935a03e3bd4