[INFO] cloning repository https://github.com/onsdagens/syncrim-hal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/onsdagens/syncrim-hal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonsdagens%2Fsyncrim-hal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonsdagens%2Fsyncrim-hal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5efa6a159be1408edeec31478063959e1f53cfe5
[INFO] checking onsdagens/syncrim-hal against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonsdagens%2Fsyncrim-hal" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/onsdagens/syncrim-hal
[INFO] finished tweaking git repo https://github.com/onsdagens/syncrim-hal
[INFO] tweaked toml for git repo https://github.com/onsdagens/syncrim-hal written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/onsdagens/syncrim-hal 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 git repo https://github.com/onsdagens/syncrim-hal 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] bbc7b41bdbd116391c1b8789b6ffb0bd5c71302e525b7db0e77255a7e9b752c3
[INFO] running `Command { std: "docker" "start" "-a" "bbc7b41bdbd116391c1b8789b6ffb0bd5c71302e525b7db0e77255a7e9b752c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbc7b41bdbd116391c1b8789b6ffb0bd5c71302e525b7db0e77255a7e9b752c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbc7b41bdbd116391c1b8789b6ffb0bd5c71302e525b7db0e77255a7e9b752c3", kill_on_drop: false }`
[INFO] [stdout] bbc7b41bdbd116391c1b8789b6ffb0bd5c71302e525b7db0e77255a7e9b752c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] aa9ad9763ac3307fae8b4a1659e6b4661df1fe0bc67de6162f953fa1004b1eb7
[INFO] running `Command { std: "docker" "start" "-a" "aa9ad9763ac3307fae8b4a1659e6b4661df1fe0bc67de6162f953fa1004b1eb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling riscv-rt v0.12.1
[INFO] [stderr]    Compiling riscv v0.11.0
[INFO] [stderr]     Checking critical-section v1.1.2
[INFO] [stderr]    Compiling syncrim-pac v0.1.0 (https://github.com/onsdagens/syncrim-pac?branch=gen#5e4da644)
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling riscv-rt-macros v0.2.1
[INFO] [stderr]     Checking syncrim-hal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> src/gpio/mod.rs:94:59
[INFO] [stdout]    |
[INFO] [stdout] 94 |       fn is_set_low(&mut self) -> Result<bool, Self::Error> {
[INFO] [stdout]    |  ___________________________________________________________^
[INFO] [stdout] 95 | |         Ok(true)
[INFO] [stdout] 96 | |     }
[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/mod.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         Ok(true)
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> src/gpio/mod.rs:97:60
[INFO] [stdout]    |
[INFO] [stdout] 97 |       fn is_set_high(&mut self) -> Result<bool, Self::Error> {
[INFO] [stdout]    |  ____________________________________________________________^
[INFO] [stdout] 98 | |         Ok(true)
[INFO] [stdout] 99 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> src/gpio/mod.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         Ok(true)
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syncrim-hal` (lib) due to 4 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/gpio/mod.rs:94:59
[INFO] [stdout]    |
[INFO] [stdout] 94 |       fn is_set_low(&mut self) -> Result<bool, Self::Error> {
[INFO] [stdout]    |  ___________________________________________________________^
[INFO] [stdout] 95 | |         Ok(true)
[INFO] [stdout] 96 | |     }
[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/mod.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         Ok(true)
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> src/gpio/mod.rs:97:60
[INFO] [stdout]    |
[INFO] [stdout] 97 |       fn is_set_high(&mut self) -> Result<bool, Self::Error> {
[INFO] [stdout]    |  ____________________________________________________________^
[INFO] [stdout] 98 | |         Ok(true)
[INFO] [stdout] 99 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> src/gpio/mod.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         Ok(true)
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syncrim-hal` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "aa9ad9763ac3307fae8b4a1659e6b4661df1fe0bc67de6162f953fa1004b1eb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa9ad9763ac3307fae8b4a1659e6b4661df1fe0bc67de6162f953fa1004b1eb7", kill_on_drop: false }`
[INFO] [stdout] aa9ad9763ac3307fae8b4a1659e6b4661df1fe0bc67de6162f953fa1004b1eb7