[INFO] fetching crate zyx-opencl 0.1.1...
[INFO] checking zyx-opencl-0.1.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate zyx-opencl 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate zyx-opencl 0.1.1 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zyx-opencl 0.1.1
[INFO] finished tweaking crates.io crate zyx-opencl 0.1.1
[INFO] tweaked toml for crates.io crate zyx-opencl 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding opencl-sys v0.2.9 (available: v0.3.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 173f5c7debb29d133f10e8573c920718671abffefeb03b25b468374bb6c0960d
[INFO] running `Command { std: "docker" "start" "-a" "173f5c7debb29d133f10e8573c920718671abffefeb03b25b468374bb6c0960d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "173f5c7debb29d133f10e8573c920718671abffefeb03b25b468374bb6c0960d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "173f5c7debb29d133f10e8573c920718671abffefeb03b25b468374bb6c0960d", kill_on_drop: false }`
[INFO] [stdout] 173f5c7debb29d133f10e8573c920718671abffefeb03b25b468374bb6c0960d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ece4d8d30690820b95943a9f487f004a99c00c22d2a999f285de1ae12c973f45
[INFO] running `Command { std: "docker" "start" "-a" "ece4d8d30690820b95943a9f487f004a99c00c22d2a999f285de1ae12c973f45", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling opencl-sys v0.2.9
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking zyx-core v0.1.1
[INFO] [stderr]     Checking zyx-compiler v0.1.1
[INFO] [stderr]     Checking zyx-opencl v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/lib.rs:356:5
[INFO] [stdout]     |
[INFO] [stdout] 355 |     panic!();
[INFO] [stdout]     |     -------- any code following this expression is unreachable
[INFO] [stdout] 356 |     Ok(())
[INFO] [stdout]     |     ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_ocl_str` is never used
[INFO] [stdout]    --> src/compiler.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 212 | trait OpenCLDType {
[INFO] [stdout]     |       ----------- associated function in this trait
[INFO] [stdout] 213 |     fn ocl_str(&self) -> &'static str;
[INFO] [stdout] 214 |     fn from_ocl_str(str: &str) -> DType;
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_ocl_str` is never used
[INFO] [stdout]    --> src/compiler.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 212 | trait OpenCLDType {
[INFO] [stdout]     |       ----------- associated function in this trait
[INFO] [stdout] 213 |     fn ocl_str(&self) -> &'static str;
[INFO] [stdout] 214 |     fn from_ocl_str(str: &str) -> DType;
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.34s
[INFO] running `Command { std: "docker" "inspect" "ece4d8d30690820b95943a9f487f004a99c00c22d2a999f285de1ae12c973f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ece4d8d30690820b95943a9f487f004a99c00c22d2a999f285de1ae12c973f45", kill_on_drop: false }`
[INFO] [stdout] ece4d8d30690820b95943a9f487f004a99c00c22d2a999f285de1ae12c973f45