[INFO] fetching crate c2-mmap-gpio 0.2.1...
[INFO] checking c2-mmap-gpio-0.2.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate c2-mmap-gpio 0.2.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate c2-mmap-gpio 0.2.1
[INFO] finished tweaking crates.io crate c2-mmap-gpio 0.2.1
[INFO] tweaked toml for crates.io crate c2-mmap-gpio 0.2.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate c2-mmap-gpio 0.2.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate c2-mmap-gpio 0.2.1 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a4976e4609eac7c49c95bffac175101da925bf0c85d32c80f551c8c277f6be9
[INFO] running `Command { std: "docker" "start" "-a" "2a4976e4609eac7c49c95bffac175101da925bf0c85d32c80f551c8c277f6be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a4976e4609eac7c49c95bffac175101da925bf0c85d32c80f551c8c277f6be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a4976e4609eac7c49c95bffac175101da925bf0c85d32c80f551c8c277f6be9", kill_on_drop: false }`
[INFO] [stdout] 2a4976e4609eac7c49c95bffac175101da925bf0c85d32c80f551c8c277f6be9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82c30879315111b8e50d834a6e5601455eeafac6e3d293cf78313b98b63d3d51
[INFO] running `Command { std: "docker" "start" "-a" "82c30879315111b8e50d834a6e5601455eeafac6e3d293cf78313b98b63d3d51", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking nix v0.19.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling derive-try-from-primitive v1.0.0
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking c2-mmap-gpio v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/device/pin.rs:294:52
[INFO] [stdout]     |
[INFO] [stdout] 294 |       fn is_high(&self) -> Result<bool, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________^
[INFO] [stdout] 295 | |         use Value::*;
[INFO] [stdout] 296 | |
[INFO] [stdout] 297 | |         Ok(match self.get_value() {
[INFO] [stdout] ...   |
[INFO] [stdout] 300 | |         })
[INFO] [stdout] 301 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/device/pin.rs:297:9
[INFO] [stdout]     |
[INFO] [stdout] 297 | /         Ok(match self.get_value() {
[INFO] [stdout] 298 | |             High => true,
[INFO] [stdout] 299 | |             Low => false,
[INFO] [stdout] 300 | |         })
[INFO] [stdout]     | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/device/pin.rs:303:51
[INFO] [stdout]     |
[INFO] [stdout] 303 |       fn is_low(&self) -> Result<bool, Self::Error> {
[INFO] [stdout]     |  ___________________________________________________^
[INFO] [stdout] 304 | |         self.is_high().map(|v| !v)
[INFO] [stdout] 305 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/device/pin.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 |         self.is_high().map(|v| !v)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/device/pin.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 |         self.is_high().map(|v| !v)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `c2-mmap-gpio` (lib test) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/device/pin.rs:294:52
[INFO] [stdout]     |
[INFO] [stdout] 294 |       fn is_high(&self) -> Result<bool, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________^
[INFO] [stdout] 295 | |         use Value::*;
[INFO] [stdout] 296 | |
[INFO] [stdout] 297 | |         Ok(match self.get_value() {
[INFO] [stdout] ...   |
[INFO] [stdout] 300 | |         })
[INFO] [stdout] 301 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/device/pin.rs:297:9
[INFO] [stdout]     |
[INFO] [stdout] 297 | /         Ok(match self.get_value() {
[INFO] [stdout] 298 | |             High => true,
[INFO] [stdout] 299 | |             Low => false,
[INFO] [stdout] 300 | |         })
[INFO] [stdout]     | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/device/pin.rs:303:51
[INFO] [stdout]     |
[INFO] [stdout] 303 |       fn is_low(&self) -> Result<bool, Self::Error> {
[INFO] [stdout]     |  ___________________________________________________^
[INFO] [stdout] 304 | |         self.is_high().map(|v| !v)
[INFO] [stdout] 305 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/device/pin.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 |         self.is_high().map(|v| !v)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/device/pin.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 |         self.is_high().map(|v| !v)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `c2-mmap-gpio` (lib) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "82c30879315111b8e50d834a6e5601455eeafac6e3d293cf78313b98b63d3d51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82c30879315111b8e50d834a6e5601455eeafac6e3d293cf78313b98b63d3d51", kill_on_drop: false }`
[INFO] [stdout] 82c30879315111b8e50d834a6e5601455eeafac6e3d293cf78313b98b63d3d51
