[INFO] fetching crate ch32v103-hal 0.0.4...
[INFO] checking ch32v103-hal-0.0.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ch32v103-hal 0.0.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate ch32v103-hal 0.0.4
[INFO] finished tweaking crates.io crate ch32v103-hal 0.0.4
[INFO] tweaked toml for crates.io crate ch32v103-hal 0.0.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ch32v103-hal 0.0.4 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding embedded-hal v0.2.7 (available: v1.0.0)
[INFO] [stderr]       Adding riscv v0.10.1 (available: v0.15.0)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9964506905cd8e5f4fe5c0b3132672b87fffb34e1a43aaaacd4cb7b40b77e8bc
[INFO] running `Command { std: "docker" "start" "-a" "9964506905cd8e5f4fe5c0b3132672b87fffb34e1a43aaaacd4cb7b40b77e8bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9964506905cd8e5f4fe5c0b3132672b87fffb34e1a43aaaacd4cb7b40b77e8bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9964506905cd8e5f4fe5c0b3132672b87fffb34e1a43aaaacd4cb7b40b77e8bc", kill_on_drop: false }`
[INFO] [stdout] 9964506905cd8e5f4fe5c0b3132672b87fffb34e1a43aaaacd4cb7b40b77e8bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7c3bc690606dd5d402f5ba455cf1f7de4c86111d3d2aa455f379022148bb0f61
[INFO] running `Command { std: "docker" "start" "-a" "7c3bc690606dd5d402f5ba455cf1f7de4c86111d3d2aa455f379022148bb0f61", kill_on_drop: false }`
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling riscv v0.10.1
[INFO] [stderr]     Checking bit_field v0.10.3
[INFO] [stderr]    Compiling ch32v1 v0.1.6
[INFO] [stderr]     Checking critical-section v1.2.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking ch32v103-hal v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/delay.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::clocks::{self, Clocks};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/delay.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::clocks::{self, Clocks};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/gpio.rs:200:28
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub fn cfg_lock(&self, value: CfgLock) {
[INFO] [stdout]     |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/gpio.rs:200:28
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub fn cfg_lock(&self, value: CfgLock) {
[INFO] [stdout]     |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:320:52
[INFO] [stdout]     |
[INFO] [stdout] 320 |       fn is_high(&self) -> Result<bool, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________^
[INFO] [stdout] 321 | |         Ok(Pin::is_high(&self))
[INFO] [stdout] 322 | |     }
[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/gpio.rs:321:9
[INFO] [stdout]     |
[INFO] [stdout] 321 |         Ok(Pin::is_high(&self))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:324:51
[INFO] [stdout]     |
[INFO] [stdout] 324 |       fn is_low(&self) -> Result<bool, Self::Error> {
[INFO] [stdout]     |  ___________________________________________________^
[INFO] [stdout] 325 | |         Ok(Pin::is_low(&self))
[INFO] [stdout] 326 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 325 |         Ok(Pin::is_low(&self))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:357:56
[INFO] [stdout]     |
[INFO] [stdout] 357 |       fn is_set_high(&self) -> Result<bool, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________^
[INFO] [stdout] 358 | |         Ok(Pin::is_high(&self))
[INFO] [stdout] 359 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:358:9
[INFO] [stdout]     |
[INFO] [stdout] 358 |         Ok(Pin::is_high(&self))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:361:55
[INFO] [stdout]     |
[INFO] [stdout] 361 |       fn is_set_low(&self) -> Result<bool, Self::Error> {
[INFO] [stdout]     |  _______________________________________________________^
[INFO] [stdout] 362 | |         Ok(Pin::is_low(&self))
[INFO] [stdout] 363 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |         Ok(Pin::is_low(&self))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:320:52
[INFO] [stdout]     |
[INFO] [stdout] 320 |       fn is_high(&self) -> Result<bool, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________^
[INFO] [stdout] 321 | |         Ok(Pin::is_high(&self))
[INFO] [stdout] 322 | |     }
[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/gpio.rs:321:9
[INFO] [stdout]     |
[INFO] [stdout] 321 |         Ok(Pin::is_high(&self))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:324:51
[INFO] [stdout]     |
[INFO] [stdout] 324 |       fn is_low(&self) -> Result<bool, Self::Error> {
[INFO] [stdout]     |  ___________________________________________________^
[INFO] [stdout] 325 | |         Ok(Pin::is_low(&self))
[INFO] [stdout] 326 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 325 |         Ok(Pin::is_low(&self))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:357:56
[INFO] [stdout]     |
[INFO] [stdout] 357 |       fn is_set_high(&self) -> Result<bool, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________^
[INFO] [stdout] 358 | |         Ok(Pin::is_high(&self))
[INFO] [stdout] 359 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:358:9
[INFO] [stdout]     |
[INFO] [stdout] 358 |         Ok(Pin::is_high(&self))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:361:55
[INFO] [stdout]     |
[INFO] [stdout] 361 |       fn is_set_low(&self) -> Result<bool, Self::Error> {
[INFO] [stdout]     |  _______________________________________________________^
[INFO] [stdout] 362 | |         Ok(Pin::is_low(&self))
[INFO] [stdout] 363 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/gpio.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |         Ok(Pin::is_low(&self))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ch32v103-hal` (lib) due to 8 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `ch32v103-hal` (lib test) due to 8 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7c3bc690606dd5d402f5ba455cf1f7de4c86111d3d2aa455f379022148bb0f61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c3bc690606dd5d402f5ba455cf1f7de4c86111d3d2aa455f379022148bb0f61", kill_on_drop: false }`
[INFO] [stdout] 7c3bc690606dd5d402f5ba455cf1f7de4c86111d3d2aa455f379022148bb0f61
