Dec 04 07:37:36.568 INFO checking vitelabs/pow-gpu against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 07:37:36.568 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 07:37:37.259 INFO [stdout] 4c7d36c80720329811fcdfe9cbe8e48814beab1f3ff1fde4b9cbe42f2dacd5d8
Dec 04 07:37:37.261 INFO running `"docker" "start" "-a" "4c7d36c80720329811fcdfe9cbe8e48814beab1f3ff1fde4b9cbe42f2dacd5d8"`
Dec 04 07:37:38.506 INFO [stderr] usermod: no changes
Dec 04 07:37:38.863 INFO [stderr]     Checking nodrop v0.1.12
Dec 04 07:37:38.870 INFO [stderr]    Compiling cl-sys v0.4.1
Dec 04 07:37:38.871 INFO [stderr]     Checking stable_deref_trait v1.0.0
Dec 04 07:37:38.883 INFO [stderr]     Checking smallvec v0.6.1
Dec 04 07:37:38.895 INFO [stderr]     Checking serde v1.0.45
Dec 04 07:37:38.895 INFO [stderr]     Checking hex v0.3.2
Dec 04 07:37:38.895 INFO [stderr]     Checking net2 v0.2.32
Dec 04 07:37:38.895 INFO [stderr]     Checking tokio-service v0.1.0
Dec 04 07:37:39.854 INFO [stderr]     Checking relay v0.1.1
Dec 04 07:37:39.931 INFO [stderr]    Compiling backtrace-sys v0.1.16
Dec 04 07:37:40.041 INFO [stderr]     Checking num-complex v0.1.43
Dec 04 07:37:40.973 INFO [stderr]     Checking base64 v0.9.1
Dec 04 07:37:41.383 INFO [stderr]     Checking qutex v0.2.1
Dec 04 07:37:42.828 INFO [stderr]     Checking bytes v0.4.7
Dec 04 07:37:43.031 INFO [stderr]     Checking rand v0.3.22
Dec 04 07:37:44.128 INFO [stderr]     Checking futures-cpupool v0.1.8
Dec 04 07:37:44.167 INFO [stderr]     Checking log v0.3.9
Dec 04 07:37:44.811 INFO [stderr]     Checking owning_ref v0.3.3
Dec 04 07:37:44.927 INFO [stderr]     Checking arrayvec v0.4.7
Dec 04 07:37:45.176 INFO [stderr]     Checking num-bigint v0.1.43
Dec 04 07:37:46.179 INFO [stderr]    Compiling ocl-core v0.9.0
Dec 04 07:37:46.611 INFO [stderr]     Checking parking_lot_core v0.2.14
Dec 04 07:37:46.933 INFO [stderr]     Checking clap v2.31.2
Dec 04 07:37:48.969 INFO [stderr]     Checking mio v0.6.14
Dec 04 07:37:51.540 INFO [stderr]     Checking parking_lot v0.5.5
Dec 04 07:37:51.693 INFO [stderr]     Checking tokio-io v0.1.6
Dec 04 07:37:51.704 INFO [stderr]     Checking mime v0.3.7
Dec 04 07:37:54.419 INFO [stderr]     Checking crossbeam-epoch v0.4.1
Dec 04 07:37:54.983 INFO [stderr]     Checking blake2 v0.7.1
Dec 04 07:37:56.887 INFO [stderr]     Checking crossbeam-deque v0.3.1
Dec 04 07:37:57.933 INFO [stderr]     Checking num-rational v0.1.42
Dec 04 07:37:58.444 INFO [stderr]     Checking tokio-threadpool v0.1.3
Dec 04 07:37:59.722 INFO [stderr]     Checking tokio-reactor v0.1.1
Dec 04 07:38:01.438 INFO [stderr]     Checking num v0.1.42
Dec 04 07:38:02.505 INFO [stderr]     Checking ocl-core-vector v0.1.0
Dec 04 07:38:03.353 INFO [stderr]     Checking tokio-tcp v0.1.0
Dec 04 07:38:03.355 INFO [stderr]     Checking tokio-udp v0.1.0
Dec 04 07:38:06.393 INFO [stderr]     Checking tokio-fs v0.1.0
Dec 04 07:38:08.341 INFO [stderr]     Checking tokio v0.1.6
Dec 04 07:38:12.661 INFO [stderr]     Checking tokio-core v0.1.17
Dec 04 07:38:18.232 INFO [stderr]     Checking tokio-proto v0.1.1
Dec 04 07:38:19.811 INFO [stderr]     Checking backtrace v0.3.7
Dec 04 07:38:21.347 INFO [stderr]     Checking failure v0.1.1
Dec 04 07:38:24.563 INFO [stderr]     Checking hyper v0.11.25
Dec 04 07:38:27.375 INFO [stderr]     Checking serde_json v1.0.17
Dec 04 07:38:33.578 INFO [stderr]     Checking ocl v0.18.0
Dec 04 07:38:36.835 INFO [stderr]     Checking dpow-work-server v0.1.7 (/source)
Dec 04 07:38:37.651 INFO [stderr] warning: unused import: `ocl::prm::Ulong`
Dec 04 07:38:37.651 INFO [stderr]  --> src/gpu.rs:6:5
Dec 04 07:38:37.651 INFO [stderr]   |
Dec 04 07:38:37.651 INFO [stderr] 6 | use ocl::prm::Ulong;
Dec 04 07:38:37.651 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 04 07:38:37.651 INFO [stderr]   |
Dec 04 07:38:37.651 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 07:38:37.651 INFO [stderr] 
Dec 04 07:38:37.907 INFO [stderr] warning: unused import: `ocl::prm::Ulong`
Dec 04 07:38:37.907 INFO [stderr]  --> src/gpu.rs:6:5
Dec 04 07:38:37.908 INFO [stderr]   |
Dec 04 07:38:37.908 INFO [stderr] 6 | use ocl::prm::Ulong;
Dec 04 07:38:37.908 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 04 07:38:37.908 INFO [stderr]   |
Dec 04 07:38:37.908 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 07:38:37.908 INFO [stderr] 
Dec 04 07:38:38.027 INFO [stderr] warning: unused variable: `root`
Dec 04 07:38:38.027 INFO [stderr]   --> src/main.rs:58:15
Dec 04 07:38:38.027 INFO [stderr]    |
Dec 04 07:38:38.027 INFO [stderr] 58 | fn work_valid(root: [u8; 32], work: [u8; 8], threshold:  [u8; 32]) -> bool {
Dec 04 07:38:38.027 INFO [stderr]    |               ^^^^ help: consider using `_root` instead
Dec 04 07:38:38.027 INFO [stderr]    |
Dec 04 07:38:38.027 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 07:38:38.027 INFO [stderr] 
Dec 04 07:38:38.027 INFO [stderr] warning: unused variable: `work`
Dec 04 07:38:38.027 INFO [stderr]   --> src/main.rs:58:31
Dec 04 07:38:38.027 INFO [stderr]    |
Dec 04 07:38:38.027 INFO [stderr] 58 | fn work_valid(root: [u8; 32], work: [u8; 8], threshold:  [u8; 32]) -> bool {
Dec 04 07:38:38.027 INFO [stderr]    |                               ^^^^ help: consider using `_work` instead
Dec 04 07:38:38.027 INFO [stderr] 
Dec 04 07:38:38.027 INFO [stderr] warning: unused variable: `threshold`
Dec 04 07:38:38.027 INFO [stderr]   --> src/main.rs:58:46
Dec 04 07:38:38.027 INFO [stderr]    |
Dec 04 07:38:38.027 INFO [stderr] 58 | fn work_valid(root: [u8; 32], work: [u8; 8], threshold:  [u8; 32]) -> bool {
Dec 04 07:38:38.027 INFO [stderr]    |                                              ^^^^^^^^^ help: consider using `_threshold` instead
Dec 04 07:38:38.027 INFO [stderr] 
Dec 04 07:38:38.151 INFO [stderr] warning: function is never used: `work_value`
Dec 04 07:38:38.151 INFO [stderr]   --> src/main.rs:48:1
Dec 04 07:38:38.151 INFO [stderr]    |
Dec 04 07:38:38.151 INFO [stderr] 48 | fn work_value(root: [u8; 32], work: [u8; 8]) -> u64 {
Dec 04 07:38:38.151 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:38:38.151 INFO [stderr]    |
Dec 04 07:38:38.151 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 07:38:38.151 INFO [stderr] 
Dec 04 07:38:38.151 INFO [stderr] warning: method is never used: `parse_work_json`
Dec 04 07:38:38.151 INFO [stderr]    --> src/main.rs:155:7
Dec 04 07:38:38.151 INFO [stderr]     |
Dec 04 07:38:38.151 INFO [stderr] 155 |       fn parse_work_json(json: &Value) -> Result<[u8; 8], Value> {
Dec 04 07:38:38.151 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:38:38.151 INFO [stderr] 
Dec 04 07:38:38.263 INFO [stderr] warning: unused variable: `root`
Dec 04 07:38:38.263 INFO [stderr]   --> src/main.rs:58:15
Dec 04 07:38:38.263 INFO [stderr]    |
Dec 04 07:38:38.263 INFO [stderr] 58 | fn work_valid(root: [u8; 32], work: [u8; 8], threshold:  [u8; 32]) -> bool {
Dec 04 07:38:38.263 INFO [stderr]    |               ^^^^ help: consider using `_root` instead
Dec 04 07:38:38.263 INFO [stderr]    |
Dec 04 07:38:38.263 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 07:38:38.263 INFO [stderr] 
Dec 04 07:38:38.263 INFO [stderr] warning: unused variable: `work`
Dec 04 07:38:38.263 INFO [stderr]   --> src/main.rs:58:31
Dec 04 07:38:38.263 INFO [stderr]    |
Dec 04 07:38:38.263 INFO [stderr] 58 | fn work_valid(root: [u8; 32], work: [u8; 8], threshold:  [u8; 32]) -> bool {
Dec 04 07:38:38.263 INFO [stderr]    |                               ^^^^ help: consider using `_work` instead
Dec 04 07:38:38.263 INFO [stderr] 
Dec 04 07:38:38.263 INFO [stderr] warning: unused variable: `threshold`
Dec 04 07:38:38.263 INFO [stderr]   --> src/main.rs:58:46
Dec 04 07:38:38.263 INFO [stderr]    |
Dec 04 07:38:38.263 INFO [stderr] 58 | fn work_valid(root: [u8; 32], work: [u8; 8], threshold:  [u8; 32]) -> bool {
Dec 04 07:38:38.263 INFO [stderr]    |                                              ^^^^^^^^^ help: consider using `_threshold` instead
Dec 04 07:38:38.263 INFO [stderr] 
Dec 04 07:38:38.343 INFO [stderr] warning: function is never used: `work_value`
Dec 04 07:38:38.343 INFO [stderr]   --> src/main.rs:48:1
Dec 04 07:38:38.343 INFO [stderr]    |
Dec 04 07:38:38.343 INFO [stderr] 48 | fn work_value(root: [u8; 32], work: [u8; 8]) -> u64 {
Dec 04 07:38:38.343 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:38:38.343 INFO [stderr]    |
Dec 04 07:38:38.343 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 07:38:38.343 INFO [stderr] 
Dec 04 07:38:38.343 INFO [stderr] warning: method is never used: `parse_work_json`
Dec 04 07:38:38.343 INFO [stderr]    --> src/main.rs:155:7
Dec 04 07:38:38.343 INFO [stderr]     |
Dec 04 07:38:38.343 INFO [stderr] 155 |       fn parse_work_json(json: &Value) -> Result<[u8; 8], Value> {
Dec 04 07:38:38.343 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:38:38.343 INFO [stderr] 
Dec 04 07:38:38.383 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.83s
Dec 04 07:38:38.395 INFO [stderr] su: No module specific data is present
Dec 04 07:38:39.119 INFO running `"docker" "inspect" "4c7d36c80720329811fcdfe9cbe8e48814beab1f3ff1fde4b9cbe42f2dacd5d8"`
Dec 04 07:38:39.396 INFO running `"docker" "rm" "-f" "4c7d36c80720329811fcdfe9cbe8e48814beab1f3ff1fde4b9cbe42f2dacd5d8"`
Dec 04 07:38:39.514 INFO [stdout] 4c7d36c80720329811fcdfe9cbe8e48814beab1f3ff1fde4b9cbe42f2dacd5d8