[INFO] fetching crate yarr 0.0.1...
[INFO] checking yarr-0.0.1 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate yarr 0.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate yarr 0.0.1
[INFO] finished tweaking crates.io crate yarr 0.0.1
[INFO] tweaked toml for crates.io crate yarr 0.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate yarr 0.0.1 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 25 packages to latest compatible versions
[INFO] [stderr]       Adding riscv v0.10.1 (available: v0.14.0)
[INFO] [stderr]       Adding riscv-rt v0.11.0 (available: v0.15.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fbdf3cc170ac9499630630c9c57da8bcd74d2e26db11655194cab693ca0c483
[INFO] running `Command { std: "docker" "start" "-a" "4fbdf3cc170ac9499630630c9c57da8bcd74d2e26db11655194cab693ca0c483", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fbdf3cc170ac9499630630c9c57da8bcd74d2e26db11655194cab693ca0c483", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fbdf3cc170ac9499630630c9c57da8bcd74d2e26db11655194cab693ca0c483", kill_on_drop: false }`
[INFO] [stdout] 4fbdf3cc170ac9499630630c9c57da8bcd74d2e26db11655194cab693ca0c483
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e70f1adc92a25ae789eca3c99595d2d07c114fe1a210849c2eac100cf7bc92f
[INFO] running `Command { std: "docker" "start" "-a" "1e70f1adc92a25ae789eca3c99595d2d07c114fe1a210849c2eac100cf7bc92f", kill_on_drop: false }`
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling riscv v0.10.1
[INFO] [stderr]     Checking r0 v1.0.0
[INFO] [stderr]    Compiling riscv-target v0.1.2
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking yarr-common v0.0.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling riscv-rt v0.11.0
[INFO] [stderr]     Checking yarr-riscv v0.0.0
[INFO] [stderr]    Compiling riscv-rt-macros v0.2.2
[INFO] [stderr]     Checking yarr v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `duration`
[INFO] [stdout]   --> src/syscall.rs:28:26
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn syscall_sleep_for(duration: u64) {
[INFO] [stdout]    |                          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_duration`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ticks`
[INFO] [stdout]   --> src/syscall.rs:42:28
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn syscall_sleep_ticks(ticks: u64) {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_ticks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]   --> src/schedule.rs:38:28
[INFO] [stdout]    |
[INFO] [stdout] 38 |             if self.idx >= (*self.processes).len() {
[INFO] [stdout]    |                            ^^--------------^^^^^^^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              this raw pointer has type `*mut [Process]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[Process]`
[INFO] [stdout]   --> src/schedule.rs:38:28
[INFO] [stdout]    |
[INFO] [stdout] 38 |             if self.idx >= (*self.processes).len() {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `len` require a reference
[INFO] [stdout]   --> /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/core/src/slice/mod.rs:114:5
[INFO] [stdout]    = note: `#[deny(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]    |
[INFO] [stdout] 38 |             if self.idx >= (&(*self.processes)).len() {
[INFO] [stdout]    |                            ++                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `duration`
[INFO] [stdout]   --> src/syscall.rs:28:26
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn syscall_sleep_for(duration: u64) {
[INFO] [stdout]    |                          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_duration`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ticks`
[INFO] [stdout]   --> src/syscall.rs:42:28
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn syscall_sleep_ticks(ticks: u64) {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_ticks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]   --> src/schedule.rs:38:28
[INFO] [stdout]    |
[INFO] [stdout] 38 |             if self.idx >= (*self.processes).len() {
[INFO] [stdout]    |                            ^^--------------^^^^^^^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              this raw pointer has type `*mut [Process]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[Process]`
[INFO] [stdout]   --> src/schedule.rs:38:28
[INFO] [stdout]    |
[INFO] [stdout] 38 |             if self.idx >= (*self.processes).len() {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `len` require a reference
[INFO] [stdout]   --> /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/core/src/slice/mod.rs:114:5
[INFO] [stdout]    = note: `#[deny(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]    |
[INFO] [stdout] 38 |             if self.idx >= (&(*self.processes)).len() {
[INFO] [stdout]    |                            ++                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yarr` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `yarr` (lib) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1e70f1adc92a25ae789eca3c99595d2d07c114fe1a210849c2eac100cf7bc92f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e70f1adc92a25ae789eca3c99595d2d07c114fe1a210849c2eac100cf7bc92f", kill_on_drop: false }`
[INFO] [stdout] 1e70f1adc92a25ae789eca3c99595d2d07c114fe1a210849c2eac100cf7bc92f