[INFO] updating cached repository vitelabs/pow-gpu [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/vitelabs/pow-gpu [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/vitelabs/pow-gpu" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/vitelabs/pow-gpu"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/vitelabs/pow-gpu'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/vitelabs/pow-gpu" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/vitelabs/pow-gpu"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/vitelabs/pow-gpu'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 6c8e872111e715adb30ea99a71738cd5931284ac [INFO] sha for GitHub repo vitelabs/pow-gpu: 6c8e872111e715adb30ea99a71738cd5931284ac [INFO] validating manifest of vitelabs/pow-gpu on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of vitelabs/pow-gpu on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing vitelabs/pow-gpu [INFO] finished frobbing vitelabs/pow-gpu [INFO] frobbed toml for vitelabs/pow-gpu written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/vitelabs/pow-gpu/Cargo.toml [INFO] started frobbing vitelabs/pow-gpu [INFO] finished frobbing vitelabs/pow-gpu [INFO] frobbed toml for vitelabs/pow-gpu written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/vitelabs/pow-gpu/Cargo.toml [INFO] crate vitelabs/pow-gpu already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking vitelabs/pow-gpu against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-1/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/vitelabs/pow-gpu:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 85cea6aac10fac04670a46af408f2fdcac22d5cca1137854e6973f63cffcbd17 [INFO] running `"docker" "start" "-a" "85cea6aac10fac04670a46af408f2fdcac22d5cca1137854e6973f63cffcbd17"` [INFO] [stderr] Compiling cl-sys v0.4.1 [INFO] [stderr] Checking serde v1.0.45 [INFO] [stderr] Checking num-integer v0.1.36 [INFO] [stderr] Checking tokio-service v0.1.0 [INFO] [stderr] Checking relay v0.1.1 [INFO] [stderr] Checking time v0.1.39 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Checking base64 v0.9.1 [INFO] [stderr] Checking qutex v0.2.1 [INFO] [stderr] Checking crossbeam-epoch v0.4.1 [INFO] [stderr] Checking bytes v0.4.7 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Compiling ocl-core v0.9.0 [INFO] [stderr] Checking num-bigint v0.1.43 [INFO] [stderr] Checking num-iter v0.1.35 [INFO] [stderr] Checking parking_lot v0.5.5 [INFO] [stderr] Checking crossbeam-deque v0.3.1 [INFO] [stderr] Checking backtrace v0.3.7 [INFO] [stderr] Checking digest v0.7.2 [INFO] [stderr] Checking tokio-threadpool v0.1.3 [INFO] [stderr] Checking blake2 v0.7.1 [INFO] [stderr] Checking failure v0.1.1 [INFO] [stderr] Checking tokio-io v0.1.6 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking tokio-reactor v0.1.1 [INFO] [stderr] Checking tokio-fs v0.1.0 [INFO] [stderr] Checking tokio-udp v0.1.0 [INFO] [stderr] Checking tokio-tcp v0.1.0 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking ocl-core-vector v0.1.0 [INFO] [stderr] Checking tokio v0.1.6 [INFO] [stderr] Checking tokio-core v0.1.17 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking hyper v0.11.25 [INFO] [stderr] Checking serde_json v1.0.17 [INFO] [stderr] Checking ocl v0.18.0 [INFO] [stderr] warning[E0502]: cannot borrow `self.cmd.buffer.obj_core` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocl-0.18.0/src/standard/buffer.rs:1609:13 [INFO] [stderr] | [INFO] [stderr] 1606 | let (offset, len, queue, flags, ewait, enew, /*is_mapped*/) = self.enq_details()?; [INFO] [stderr] | ---- mutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 1609 | &self.cmd.buffer.obj_core, true, flags, offset, len, ewait, enew)?; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 1614 | queue.clone())) [INFO] [stderr] | ----- mutable borrow later used here [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `self.cmd.buffer.obj_core` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocl-0.18.0/src/standard/buffer.rs:1613:57 [INFO] [stderr] | [INFO] [stderr] 1606 | let (offset, len, queue, flags, ewait, enew, /*is_mapped*/) = self.enq_details()?; [INFO] [stderr] | ---- mutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 1613 | Ok(MemMap::new(mm_core, len, None, unmap_event, self.cmd.buffer.obj_core.clone(), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ immutable borrow occurs here [INFO] [stderr] 1614 | queue.clone())) [INFO] [stderr] | ----- mutable borrow later used here [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `self.cmd.buffer.obj_core` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocl-0.18.0/src/standard/buffer.rs:1635:13 [INFO] [stderr] | [INFO] [stderr] 1630 | let (offset, len, queue, flags, ewait, enew, /*is_mapped*/) = self.enq_details()?; [INFO] [stderr] | ---- mutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 1635 | &self.cmd.buffer.obj_core, false, flags, offset, len, ewait, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 1646 | self.cmd.buffer.obj_core.clone(), queue.clone(), /*is_mapped*/)) [INFO] [stderr] | ----- mutable borrow later used here [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] warning[E0502]: cannot borrow `self.cmd.buffer.obj_core` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocl-0.18.0/src/standard/buffer.rs:1646:13 [INFO] [stderr] | [INFO] [stderr] 1630 | let (offset, len, queue, flags, ewait, enew, /*is_mapped*/) = self.enq_details()?; [INFO] [stderr] | ---- mutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 1646 | self.cmd.buffer.obj_core.clone(), queue.clone(), /*is_mapped*/)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ ----- mutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | immutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Checking dpow-work-server v0.1.7 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `ocl::prm::Ulong` [INFO] [stderr] --> src/gpu.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use ocl::prm::Ulong; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:109:73 [INFO] [stderr] | [INFO] [stderr] 109 | fn generate_work(&self, root: [u8; 32], threshold: [u8; 32]) -> Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:246:14 [INFO] [stderr] | [INFO] [stderr] 246 | ) -> Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:315:23 [INFO] [stderr] | [INFO] [stderr] 315 | type Future = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future` [INFO] [stderr] [INFO] [stderr] warning: unused import: `ocl::prm::Ulong` [INFO] [stderr] --> src/gpu.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use ocl::prm::Ulong; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:109:73 [INFO] [stderr] | [INFO] [stderr] 109 | fn generate_work(&self, root: [u8; 32], threshold: [u8; 32]) -> Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:246:14 [INFO] [stderr] | [INFO] [stderr] 246 | ) -> Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:315:23 [INFO] [stderr] | [INFO] [stderr] 315 | type Future = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `root` [INFO] [stderr] --> src/main.rs:58:15 [INFO] [stderr] | [INFO] [stderr] 58 | fn work_valid(root: [u8; 32], work: [u8; 8], threshold: [u8; 32]) -> bool { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_root` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `work` [INFO] [stderr] --> src/main.rs:58:31 [INFO] [stderr] | [INFO] [stderr] 58 | fn work_valid(root: [u8; 32], work: [u8; 8], threshold: [u8; 32]) -> bool { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_work` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `threshold` [INFO] [stderr] --> src/main.rs:58:46 [INFO] [stderr] | [INFO] [stderr] 58 | fn work_valid(root: [u8; 32], work: [u8; 8], threshold: [u8; 32]) -> bool { [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_threshold` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `root` [INFO] [stderr] --> src/main.rs:58:15 [INFO] [stderr] | [INFO] [stderr] 58 | fn work_valid(root: [u8; 32], work: [u8; 8], threshold: [u8; 32]) -> bool { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_root` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `work` [INFO] [stderr] --> src/main.rs:58:31 [INFO] [stderr] | [INFO] [stderr] 58 | fn work_valid(root: [u8; 32], work: [u8; 8], threshold: [u8; 32]) -> bool { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_work` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `threshold` [INFO] [stderr] --> src/main.rs:58:46 [INFO] [stderr] | [INFO] [stderr] 58 | fn work_valid(root: [u8; 32], work: [u8; 8], threshold: [u8; 32]) -> bool { [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_threshold` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `work_value` [INFO] [stderr] --> src/main.rs:48:1 [INFO] [stderr] | [INFO] [stderr] 48 | fn work_value(root: [u8; 32], work: [u8; 8]) -> u64 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `parse_work_json` [INFO] [stderr] --> src/main.rs:155:7 [INFO] [stderr] | [INFO] [stderr] 155 | fn parse_work_json(json: &Value) -> Result<[u8; 8], Value> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `work_value` [INFO] [stderr] --> src/main.rs:48:1 [INFO] [stderr] | [INFO] [stderr] 48 | fn work_value(root: [u8; 32], work: [u8; 8]) -> u64 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `parse_work_json` [INFO] [stderr] --> src/main.rs:155:7 [INFO] [stderr] | [INFO] [stderr] 155 | fn parse_work_json(json: &Value) -> Result<[u8; 8], Value> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 41.39s [INFO] running `"docker" "inspect" "85cea6aac10fac04670a46af408f2fdcac22d5cca1137854e6973f63cffcbd17"` [INFO] running `"docker" "rm" "-f" "85cea6aac10fac04670a46af408f2fdcac22d5cca1137854e6973f63cffcbd17"` [INFO] [stdout] 85cea6aac10fac04670a46af408f2fdcac22d5cca1137854e6973f63cffcbd17