[INFO] cloning repository https://github.com/advil4rent/Stepper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/advil4rent/Stepper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadvil4rent%2FStepper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadvil4rent%2FStepper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a9d3f3d310425a52dc4fc6c39c07cbc9bd8686e
[INFO] checking advil4rent/Stepper against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadvil4rent%2FStepper" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/advil4rent/Stepper on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/advil4rent/Stepper
[INFO] finished tweaking git repo https://github.com/advil4rent/Stepper
[INFO] tweaked toml for git repo https://github.com/advil4rent/Stepper written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/advil4rent/Stepper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d45786ebf15e7cd14c7506de1382c8c2441277b53e73640a32e1cee15b84594e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d45786ebf15e7cd14c7506de1382c8c2441277b53e73640a32e1cee15b84594e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d45786ebf15e7cd14c7506de1382c8c2441277b53e73640a32e1cee15b84594e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d45786ebf15e7cd14c7506de1382c8c2441277b53e73640a32e1cee15b84594e", kill_on_drop: false }`
[INFO] [stdout] d45786ebf15e7cd14c7506de1382c8c2441277b53e73640a32e1cee15b84594e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa2d4fb022c3e369fd03f6e0d28efb289d5fe818678c131b9bc6de9127c23675
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aa2d4fb022c3e369fd03f6e0d28efb289d5fe818678c131b9bc6de9127c23675", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking object v0.26.2
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking globwalk v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.17
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking nix v0.22.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio v1.12.0
[INFO] [stderr]     Checking backtrace v0.3.61
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking clap-verbosity-flag v0.2.0
[INFO] [stderr]     Checking quicli v0.4.0
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking gpio-cdev v0.4.0
[INFO] [stderr]     Checking stepper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `task::JoinHandle`
[INFO] [stdout]  --> src/lib.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tokio::{task::JoinHandle,
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicI8`, `AtomicUsize`, `Ordering`
[INFO] [stdout]   --> src/lib.rs:14:27
[INFO] [stdout]    |
[INFO] [stdout] 14 |                  atomic::{AtomicI8, AtomicUsize, Ordering}}
[INFO] [stdout]    |                           ^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pin_mut`
[INFO] [stdout]   --> src/lib.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 16 | use futures::{pin_mut, TryFutureExt};
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::task::Poll`
[INFO] [stdout]   --> src/lib.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use std::task::Poll;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `task::JoinHandle`
[INFO] [stdout]  --> src/lib.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tokio::{task::JoinHandle,
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicI8`, `AtomicUsize`, `Ordering`
[INFO] [stdout]   --> src/lib.rs:14:27
[INFO] [stdout]    |
[INFO] [stdout] 14 |                  atomic::{AtomicI8, AtomicUsize, Ordering}}
[INFO] [stdout]    |                           ^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pin_mut`
[INFO] [stdout]   --> src/lib.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 16 | use futures::{pin_mut, TryFutureExt};
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::task::Poll`
[INFO] [stdout]   --> src/lib.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use std::task::Poll;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:94:21
[INFO] [stdout]    |
[INFO] [stdout] 94 |                 let mut state = state.lock().unwrap();
[INFO] [stdout]    |                     ----^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:94:21
[INFO] [stdout]    |
[INFO] [stdout] 94 |                 let mut state = state.lock().unwrap();
[INFO] [stdout]    |                     ----^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:198:52
[INFO] [stdout]     |
[INFO] [stdout] 197 | / ...                   match handle.line().offset() {
[INFO] [stdout] 198 | | ...                       14 => {motor.set_state(State::Backward)}
[INFO] [stdout]     | |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `()`, found enum `Result`
[INFO] [stdout] 199 | | ...                       15 => {motor.set_state(State::Forward)}
[INFO] [stdout] 200 | | ...                       _ => {println!("Invalid switch line match value")}
[INFO] [stdout] 201 | | ...                   }
[INFO] [stdout]     | |_______________________- expected this to be `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Result<(), Error>`
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 198 |                                             14 => {motor.set_state(State::Backward);}
[INFO] [stdout]     |                                                                                    ^
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 201 |                                         };
[INFO] [stdout]     |                                          ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:198:52
[INFO] [stdout]     |
[INFO] [stdout] 197 | / ...                   match handle.line().offset() {
[INFO] [stdout] 198 | | ...                       14 => {motor.set_state(State::Backward)}
[INFO] [stdout]     | |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `()`, found enum `Result`
[INFO] [stdout] 199 | | ...                       15 => {motor.set_state(State::Forward)}
[INFO] [stdout] 200 | | ...                       _ => {println!("Invalid switch line match value")}
[INFO] [stdout] 201 | | ...                   }
[INFO] [stdout]     | |_______________________- expected this to be `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Result<(), Error>`
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 198 |                                             14 => {motor.set_state(State::Backward);}
[INFO] [stdout]     |                                                                                    ^
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 201 |                                         };
[INFO] [stdout]     |                                          ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:199:52
[INFO] [stdout]     |
[INFO] [stdout] 197 | / ...                   match handle.line().offset() {
[INFO] [stdout] 198 | | ...                       14 => {motor.set_state(State::Backward)}
[INFO] [stdout] 199 | | ...                       15 => {motor.set_state(State::Forward)}
[INFO] [stdout]     | |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `()`, found enum `Result`
[INFO] [stdout] 200 | | ...                       _ => {println!("Invalid switch line match value")}
[INFO] [stdout] 201 | | ...                   }
[INFO] [stdout]     | |_______________________- expected this to be `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Result<(), Error>`
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 199 |                                             15 => {motor.set_state(State::Forward);}
[INFO] [stdout]     |                                                                                   ^
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 201 |                                         };
[INFO] [stdout]     |                                          ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:199:52
[INFO] [stdout]     |
[INFO] [stdout] 197 | / ...                   match handle.line().offset() {
[INFO] [stdout] 198 | | ...                       14 => {motor.set_state(State::Backward)}
[INFO] [stdout] 199 | | ...                       15 => {motor.set_state(State::Forward)}
[INFO] [stdout]     | |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `()`, found enum `Result`
[INFO] [stdout] 200 | | ...                       _ => {println!("Invalid switch line match value")}
[INFO] [stdout] 201 | | ...                   }
[INFO] [stdout]     | |_______________________- expected this to be `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Result<(), Error>`
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 199 |                                             15 => {motor.set_state(State::Forward);}
[INFO] [stdout]     |                                                                                   ^
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 201 |                                         };
[INFO] [stdout]     |                                          ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:203:64
[INFO] [stdout]     |
[INFO] [stdout] 195 | / ...                   match event {
[INFO] [stdout] 196 | | ...                       EventType::RisingEdge => {
[INFO] [stdout] 197 | | ...                           match handle.line().offset() {
[INFO] [stdout] 198 | | ...                               14 => {motor.set_state(State::Backward)}
[INFO] [stdout] ...   |
[INFO] [stdout] 203 | | ...                       EventType::FallingEdge => {motor.set_state(State::Stop)}
[INFO] [stdout]     | |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `()`, found enum `Result`
[INFO] [stdout] 204 | | ...                   }
[INFO] [stdout]     | |_______________________- expected this to be `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Result<(), Error>`
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 203 |                                     EventType::FallingEdge => {motor.set_state(State::Stop);}
[INFO] [stdout]     |                                                                                            ^
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 204 |                                 };
[INFO] [stdout]     |                                  ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryFutureExt`
[INFO] [stdout]   --> src/lib.rs:16:24
[INFO] [stdout]    |
[INFO] [stdout] 16 | use futures::{pin_mut, TryFutureExt};
[INFO] [stdout]    |                        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:203:64
[INFO] [stdout]     |
[INFO] [stdout] 195 | / ...                   match event {
[INFO] [stdout] 196 | | ...                       EventType::RisingEdge => {
[INFO] [stdout] 197 | | ...                           match handle.line().offset() {
[INFO] [stdout] 198 | | ...                               14 => {motor.set_state(State::Backward)}
[INFO] [stdout] ...   |
[INFO] [stdout] 203 | | ...                       EventType::FallingEdge => {motor.set_state(State::Stop)}
[INFO] [stdout]     | |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `()`, found enum `Result`
[INFO] [stdout] 204 | | ...                   }
[INFO] [stdout]     | |_______________________- expected this to be `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Result<(), Error>`
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 203 |                                     EventType::FallingEdge => {motor.set_state(State::Stop);}
[INFO] [stdout]     |                                                                                            ^
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 204 |                                 };
[INFO] [stdout]     |                                  ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryFutureExt`
[INFO] [stdout]   --> src/lib.rs:16:24
[INFO] [stdout]    |
[INFO] [stdout] 16 | use futures::{pin_mut, TryFutureExt};
[INFO] [stdout]    |                        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stepper` due to 4 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "aa2d4fb022c3e369fd03f6e0d28efb289d5fe818678c131b9bc6de9127c23675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa2d4fb022c3e369fd03f6e0d28efb289d5fe818678c131b9bc6de9127c23675", kill_on_drop: false }`
[INFO] [stdout] aa2d4fb022c3e369fd03f6e0d28efb289d5fe818678c131b9bc6de9127c23675
