2021-07-11T17:31:34,186 Created temporary directory: /tmp/pip-ephem-wheel-cache-ig14pamd
2021-07-11T17:31:34,189 Created temporary directory: /tmp/pip-req-tracker-wdyg351s
2021-07-11T17:31:34,189 Initialized build tracking at /tmp/pip-req-tracker-wdyg351s
2021-07-11T17:31:34,190 Created build tracker: /tmp/pip-req-tracker-wdyg351s
2021-07-11T17:31:34,190 Entered build tracker: /tmp/pip-req-tracker-wdyg351s
2021-07-11T17:31:34,190 Created temporary directory: /tmp/pip-wheel-4_m03wpw
2021-07-11T17:31:34,221 1 location(s) to search for versions of ikalman:
2021-07-11T17:31:34,221 * https://pypi.org/simple/ikalman/
2021-07-11T17:31:34,221 Fetching project page and analyzing links: https://pypi.org/simple/ikalman/
2021-07-11T17:31:34,222 Getting page https://pypi.org/simple/ikalman/
2021-07-11T17:31:34,224 Found index url https://pypi.org/simple
2021-07-11T17:31:34,316   Found link https://files.pythonhosted.org/packages/41/26/c12feaef2a87320ddef3f547b7770ec97caa85e0a2ad7ccf33701925e2fb/ikalman-0.1.tar.gz#sha256=a8b84d64bc1b51088267184841a9dcdcf9882f310b971be744e8d560fc0cf4a7 (from https://pypi.org/simple/ikalman/), version: 0.1
2021-07-11T17:31:34,317   Found link https://files.pythonhosted.org/packages/2d/7a/e9a79877260f5103e0add374384a88b89b932ecaf9784c9a5b4f1b98c6ee/ikalman-0.1.2.tar.gz#sha256=f1a2b855d9f5f1bc3bf4e0fe1d8227677c5887f183e3a3cf1b2f3775631b2d7c (from https://pypi.org/simple/ikalman/), version: 0.1.2
2021-07-11T17:31:34,317   Found link https://files.pythonhosted.org/packages/f3/29/467d43484950d474e46e04156775b70bed00cc98a62d5d6e36943ddc634e/ikalman-0.1.3.tar.gz#sha256=6188f0381b3d5672a265fa45d31613ecf48a6933d31a3ab569230120c48b32ec (from https://pypi.org/simple/ikalman/), version: 0.1.3
2021-07-11T17:31:34,317   Found link https://files.pythonhosted.org/packages/91/c0/cc1d6167c7bf40f738e0a1bed2260a1047b00c32b5713dc43b03de237932/ikalman-0.1.4.tar.gz#sha256=84a9783929579c7524fe9dfba404fa3a148c73e10f90c1c71ba1ff5d91121124 (from https://pypi.org/simple/ikalman/), version: 0.1.4
2021-07-11T17:31:34,318   Found link https://files.pythonhosted.org/packages/74/33/dae32a66e3b0aa2d6f2c661b258a3768526cdba61b5d6a58c3b8c61ebd66/ikalman-0.1.5.tar.gz#sha256=83cacdc75cabeff2e020d3754d6a7019db6c5ebd1b1dbb62b7c30aedd7073e3e (from https://pypi.org/simple/ikalman/), version: 0.1.5
2021-07-11T17:31:34,318   Found link https://files.pythonhosted.org/packages/bf/81/62e071beb70ce37948b683aacccb247c61e63a1996c79aaeec354e42c91d/ikalman-0.1.7.tar.gz#sha256=54abd4567f2df2335a592f23e3fa924f0be42d0c6a431e2ed6971e64bc10deeb (from https://pypi.org/simple/ikalman/), version: 0.1.7
2021-07-11T17:31:34,318   Found link https://files.pythonhosted.org/packages/2f/a2/a5c9f36ba9c2a52986cd58aa008b3f1eb97843a33d137779de3ffa088e1e/ikalman-0.1.8.tar.gz#sha256=e02a002bbd6bf7b435affd8ed0168b730da64df847603b2fa44ba4a52f76f33c (from https://pypi.org/simple/ikalman/), version: 0.1.8
2021-07-11T17:31:34,319   Found link https://files.pythonhosted.org/packages/86/93/3f8d6cdbac8121cd0f9b6803a7b86ffbcc644773b6bf6c110aef7befc0ae/ikalman-0.1.9.tar.gz#sha256=459c6328751554d138853f6f7a727c8fe575413d0d160994cea39fbe60e8d4ba (from https://pypi.org/simple/ikalman/), version: 0.1.9
2021-07-11T17:31:34,319   Found link https://files.pythonhosted.org/packages/c7/df/dddec2aac4678676f89f6af1606ad76607c446d6b4592d42512e132fc6cb/ikalman-0.1.11.tar.gz#sha256=fada72d6499a1e8a602196eca5c77521f6579bfb4ba766608319f24e62643496 (from https://pypi.org/simple/ikalman/), version: 0.1.11
2021-07-11T17:31:34,319   Found link https://files.pythonhosted.org/packages/3e/f1/2c1eb0c6080721a4ff274f3625983d5422dd034cf5a43aceb09d3ed4d05c/ikalman-0.1.12.tar.gz#sha256=82e5069fb1b1386a24ee602381f1121fd0ec6124fa6b74591ce50c8a9a7a8236 (from https://pypi.org/simple/ikalman/), version: 0.1.12
2021-07-11T17:31:34,319   Found link https://files.pythonhosted.org/packages/d5/a0/212d6930250304ea1f63a97572ad593ec7550c59848aa1d49caebd4f07b1/ikalman-0.2.0.tar.gz#sha256=8c8097dc20ca008eb24424fe26f5c2cf288d6ce0337f09543c2a1fc098b2431d (from https://pypi.org/simple/ikalman/), version: 0.2.0
2021-07-11T17:31:34,320 Skipping link: not a file: https://pypi.org/simple/ikalman/
2021-07-11T17:31:34,339 Given no hashes to check 1 links for project 'ikalman': discarding no candidates
2021-07-11T17:31:34,358 Collecting ikalman==0.1.7
2021-07-11T17:31:34,359   Created temporary directory: /tmp/pip-unpack-wi1k9dgs
2021-07-11T17:31:34,739   Downloading ikalman-0.1.7.tar.gz (7.9 kB)
2021-07-11T17:31:34,778   Added ikalman==0.1.7 from https://files.pythonhosted.org/packages/bf/81/62e071beb70ce37948b683aacccb247c61e63a1996c79aaeec354e42c91d/ikalman-0.1.7.tar.gz#sha256=54abd4567f2df2335a592f23e3fa924f0be42d0c6a431e2ed6971e64bc10deeb to build tracker '/tmp/pip-req-tracker-wdyg351s'
2021-07-11T17:31:34,779     Running setup.py (path:/tmp/pip-wheel-4_m03wpw/ikalman_729ac379abd94196aaeb544f0990ad3b/setup.py) egg_info for package ikalman
2021-07-11T17:31:34,779     Created temporary directory: /tmp/pip-pip-egg-info-q_3tu4pz
2021-07-11T17:31:34,780     Running command python setup.py egg_info
2021-07-11T17:31:35,752     running egg_info
2021-07-11T17:31:35,754     creating /tmp/pip-pip-egg-info-q_3tu4pz/ikalman.egg-info
2021-07-11T17:31:35,755     writing /tmp/pip-pip-egg-info-q_3tu4pz/ikalman.egg-info/PKG-INFO
2021-07-11T17:31:35,757     writing dependency_links to /tmp/pip-pip-egg-info-q_3tu4pz/ikalman.egg-info/dependency_links.txt
2021-07-11T17:31:35,759     writing top-level names to /tmp/pip-pip-egg-info-q_3tu4pz/ikalman.egg-info/top_level.txt
2021-07-11T17:31:35,761     writing manifest file '/tmp/pip-pip-egg-info-q_3tu4pz/ikalman.egg-info/SOURCES.txt'
2021-07-11T17:31:35,928     reading manifest file '/tmp/pip-pip-egg-info-q_3tu4pz/ikalman.egg-info/SOURCES.txt'
2021-07-11T17:31:35,931     writing manifest file '/tmp/pip-pip-egg-info-q_3tu4pz/ikalman.egg-info/SOURCES.txt'
2021-07-11T17:31:35,997   Source in /tmp/pip-wheel-4_m03wpw/ikalman_729ac379abd94196aaeb544f0990ad3b has version 0.1.7, which satisfies requirement ikalman==0.1.7 from https://files.pythonhosted.org/packages/bf/81/62e071beb70ce37948b683aacccb247c61e63a1996c79aaeec354e42c91d/ikalman-0.1.7.tar.gz#sha256=54abd4567f2df2335a592f23e3fa924f0be42d0c6a431e2ed6971e64bc10deeb
2021-07-11T17:31:35,998   Removed ikalman==0.1.7 from https://files.pythonhosted.org/packages/bf/81/62e071beb70ce37948b683aacccb247c61e63a1996c79aaeec354e42c91d/ikalman-0.1.7.tar.gz#sha256=54abd4567f2df2335a592f23e3fa924f0be42d0c6a431e2ed6971e64bc10deeb from build tracker '/tmp/pip-req-tracker-wdyg351s'
2021-07-11T17:31:36,001 Created temporary directory: /tmp/pip-unpack-ruprhxqx
2021-07-11T17:31:36,002 Building wheels for collected packages: ikalman
2021-07-11T17:31:36,006   Created temporary directory: /tmp/pip-wheel-nwaoptpy
2021-07-11T17:31:36,006   Building wheel for ikalman (setup.py): started
2021-07-11T17:31:36,007   Destination directory: /tmp/pip-wheel-nwaoptpy
2021-07-11T17:31:36,007   Running command /usr/bin/python3 -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-wheel-4_m03wpw/ikalman_729ac379abd94196aaeb544f0990ad3b/setup.py'"'"'; __file__='"'"'/tmp/pip-wheel-4_m03wpw/ikalman_729ac379abd94196aaeb544f0990ad3b/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-nwaoptpy
2021-07-11T17:31:36,921   running bdist_wheel
2021-07-11T17:31:37,077   running build
2021-07-11T17:31:37,077   running build_ext
2021-07-11T17:31:37,083   building 'ikalman' extension
2021-07-11T17:31:37,083   creating build
2021-07-11T17:31:37,085   creating build/temp.linux-armv7l-3.9
2021-07-11T17:31:37,091   arm-linux-gnueabihf-gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -ffile-prefix-map=/python3.9-3.9.2=. -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -ffile-prefix-map=/python3.9-3.9.2=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/python3.9 -c ./gps.c -o build/temp.linux-armv7l-3.9/./gps.o -std=c99
2021-07-11T17:31:37,201   ./gps.c: In function ‘alloc_filter_velocity2d’:
2021-07-11T17:31:37,202   ./gps.c:23:10: warning: unused variable ‘v2p’ [-Wunused-variable]
2021-07-11T17:31:37,202      23 |   double v2p = 0.001;
2021-07-11T17:31:37,203         |          ^~~
2021-07-11T17:31:37,383   arm-linux-gnueabihf-gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -ffile-prefix-map=/python3.9-3.9.2=. -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -ffile-prefix-map=/python3.9-3.9.2=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/python3.9 -c ./kalman.c -o build/temp.linux-armv7l-3.9/./kalman.o -std=c99
2021-07-11T17:31:37,557   arm-linux-gnueabihf-gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -ffile-prefix-map=/python3.9-3.9.2=. -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -ffile-prefix-map=/python3.9-3.9.2=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/python3.9 -c ./matrix.c -o build/temp.linux-armv7l-3.9/./matrix.o -std=c99
2021-07-11T17:31:38,338   arm-linux-gnueabihf-gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -ffile-prefix-map=/python3.9-3.9.2=. -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -ffile-prefix-map=/python3.9-3.9.2=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/python3.9 -c ./python_bindings.c -o build/temp.linux-armv7l-3.9/./python_bindings.o -std=c99
2021-07-11T17:31:38,732   ./python_bindings.c:89:32: warning: missing braces around initializer [-Wmissing-braces]
2021-07-11T17:31:38,733      89 | static PyTypeObject filterType={
2021-07-11T17:31:38,733         |                                ^
2021-07-11T17:31:38,733   ./python_bindings.c:92:5: warning: initialization of ‘int’ from ‘char *’ makes integer from pointer without a cast [-Wint-conversion]
2021-07-11T17:31:38,733      92 |     "PyKalmanFilter",        /*tp_name*/
2021-07-11T17:31:38,733         |     ^~~~~~~~~~~~~~~~
2021-07-11T17:31:38,734   ./python_bindings.c:92:5: note: (near initialization for ‘filterType.tp_basicsize’)
2021-07-11T17:31:38,734   ./python_bindings.c:95:5: warning: initialization of ‘int’ from ‘void (*)(PyObject *)’ {aka ‘void (*)(struct _object *)’} makes integer from pointer without a cast [-Wint-conversion]
2021-07-11T17:31:38,734      95 |     (destructor)py_free_filter,/*tp_dealloc*/
2021-07-11T17:31:38,734         |     ^
2021-07-11T17:31:38,734   ./python_bindings.c:95:5: note: (near initialization for ‘filterType.tp_vectorcall_offset’)
2021-07-11T17:31:38,735   In file included from /usr/include/python3.9/pytime.h:6,
2021-07-11T17:31:38,736                    from /usr/include/python3.9/Python.h:85,
2021-07-11T17:31:38,736                    from ./python_bindings.c:2:
2021-07-11T17:31:38,736   /usr/include/python3.9/object.h:350:29: warning: initialization of ‘const char *’ from ‘long unsigned int’ makes pointer from integer without a cast [-Wint-conversion]
2021-07-11T17:31:38,736     350 | #define Py_TPFLAGS_DEFAULT  ( \
2021-07-11T17:31:38,736         |                             ^
2021-07-11T17:31:38,736   ./python_bindings.c:110:5: note: in expansion of macro ‘Py_TPFLAGS_DEFAULT’
2021-07-11T17:31:38,736     110 |     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
2021-07-11T17:31:38,737         |     ^~~~~~~~~~~~~~~~~~
2021-07-11T17:31:38,737   /usr/include/python3.9/object.h:350:29: note: (near initialization for ‘filterType.tp_doc’)
2021-07-11T17:31:38,737     350 | #define Py_TPFLAGS_DEFAULT  ( \
2021-07-11T17:31:38,737         |                             ^
2021-07-11T17:31:38,737   ./python_bindings.c:110:5: note: in expansion of macro ‘Py_TPFLAGS_DEFAULT’
2021-07-11T17:31:38,737     110 |     Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
2021-07-11T17:31:38,737         |     ^~~~~~~~~~~~~~~~~~
2021-07-11T17:31:38,738   ./python_bindings.c:111:5: warning: initialization of ‘int (*)(PyObject *, int (*)(PyObject *, void *), void *)’ {aka ‘int (*)(struct _object *, int (*)(struct _object *, void *), void *)’} from incompatible pointer type ‘char *’ [-Wincompatible-pointer-types]
2021-07-11T17:31:38,738     111 |     "Kalman Filter",           /* tp_doc */
2021-07-11T17:31:38,738         |     ^~~~~~~~~~~~~~~
2021-07-11T17:31:38,738   ./python_bindings.c:111:5: note: (near initialization for ‘filterType.tp_traverse’)
2021-07-11T17:31:38,738   ./python_bindings.c:118:5: warning: initialization of ‘struct PyMemberDef *’ from incompatible pointer type ‘PyMethodDef *’ [-Wincompatible-pointer-types]
2021-07-11T17:31:38,738     118 |     filter_methods,            /* tp_methods */
2021-07-11T17:31:38,738         |     ^~~~~~~~~~~~~~
2021-07-11T17:31:38,739   ./python_bindings.c:118:5: note: (near initialization for ‘filterType.tp_members’)
2021-07-11T17:31:38,739   ./python_bindings.c:126:5: warning: initialization of ‘PyObject * (*)(PyTypeObject *, Py_ssize_t)’ {aka ‘struct _object * (*)(struct _typeobject *, int)’} from incompatible pointer type ‘int (*)(PyObject *, PyObject *, PyObject *)’ {aka ‘int (*)(struct _object *, struct _object *, struct _object *)’} [-Wincompatible-pointer-types]
2021-07-11T17:31:38,739     126 |     (initproc)py_filter_init,      /* tp_init */
2021-07-11T17:31:38,739         |     ^
2021-07-11T17:31:38,739   ./python_bindings.c:126:5: note: (near initialization for ‘filterType.tp_alloc’)
2021-07-11T17:31:38,739   ./python_bindings.c:128:5: warning: initialization of ‘void (*)(void *)’ from incompatible pointer type ‘PyObject * (*)(PyTypeObject *, PyObject *, PyObject *)’ {aka ‘struct _object * (*)(struct _typeobject *, struct _object *, struct _object *)’} [-Wincompatible-pointer-types]
2021-07-11T17:31:38,739     128 |     PyType_GenericNew,        /* tp_new */
2021-07-11T17:31:38,739         |     ^~~~~~~~~~~~~~~~~
2021-07-11T17:31:38,740   ./python_bindings.c:128:5: note: (near initialization for ‘filterType.tp_free’)
2021-07-11T17:31:38,740   ./python_bindings.c:89:32: warning: missing braces around initializer [-Wmissing-braces]
2021-07-11T17:31:38,740      89 | static PyTypeObject filterType={
2021-07-11T17:31:38,740         |                                ^
2021-07-11T17:31:38,740   ./python_bindings.c: In function ‘initikalman’:
2021-07-11T17:31:38,740   ./python_bindings.c:137:9: warning: ‘return’ with no value, in function returning non-void [-Wreturn-type]
2021-07-11T17:31:38,740     137 |         return;
2021-07-11T17:31:38,741         |         ^~~~~~
2021-07-11T17:31:38,741   ./python_bindings.c:134:16: note: declared here
2021-07-11T17:31:38,741     134 | PyMODINIT_FUNC initikalman(void) {
2021-07-11T17:31:38,741         |                ^~~~~~~~~~~
2021-07-11T17:31:38,746   ./python_bindings.c:139:9: warning: implicit declaration of function ‘Py_InitModule3’ [-Wimplicit-function-declaration]
2021-07-11T17:31:38,746     139 |     m = Py_InitModule3("ikalman", NULL, "");
2021-07-11T17:31:38,746         |         ^~~~~~~~~~~~~~
2021-07-11T17:31:38,747   ./python_bindings.c:139:7: warning: assignment to ‘PyObject *’ {aka ‘struct _object *’} from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
2021-07-11T17:31:38,747     139 |     m = Py_InitModule3("ikalman", NULL, "");
2021-07-11T17:31:38,748         |       ^
2021-07-11T17:31:38,748   ./python_bindings.c:141:9: warning: ‘return’ with no value, in function returning non-void [-Wreturn-type]
2021-07-11T17:31:38,749     141 |         return;
2021-07-11T17:31:38,749         |         ^~~~~~
2021-07-11T17:31:38,750   ./python_bindings.c:134:16: note: declared here
2021-07-11T17:31:38,750     134 | PyMODINIT_FUNC initikalman(void) {
2021-07-11T17:31:38,750         |                ^~~~~~~~~~~
2021-07-11T17:31:38,878   creating build/lib.linux-armv7l-3.9
2021-07-11T17:31:38,878   arm-linux-gnueabihf-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-z,relro -g -fwrapv -O2 -Wl,-z,relro -g -fwrapv -O2 -g -ffile-prefix-map=/python3.9-3.9.2=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 build/temp.linux-armv7l-3.9/./gps.o build/temp.linux-armv7l-3.9/./kalman.o build/temp.linux-armv7l-3.9/./matrix.o build/temp.linux-armv7l-3.9/./python_bindings.o -o build/lib.linux-armv7l-3.9/ikalman.cpython-39-arm-linux-gnueabihf.so
2021-07-11T17:31:39,004   installing to build/bdist.linux-armv7l/wheel
2021-07-11T17:31:39,004   running install
2021-07-11T17:31:39,005   running install_lib
2021-07-11T17:31:39,009   creating build/bdist.linux-armv7l
2021-07-11T17:31:39,009   creating build/bdist.linux-armv7l/wheel
2021-07-11T17:31:39,011   copying build/lib.linux-armv7l-3.9/ikalman.cpython-39-arm-linux-gnueabihf.so -> build/bdist.linux-armv7l/wheel
2021-07-11T17:31:39,015   running install_headers
2021-07-11T17:31:39,018   creating build/bdist.linux-armv7l/wheel/ikalman-0.1.7.data
2021-07-11T17:31:39,018   creating build/bdist.linux-armv7l/wheel/ikalman-0.1.7.data/headers
2021-07-11T17:31:39,019   copying ./gps.h -> build/bdist.linux-armv7l/wheel/ikalman-0.1.7.data/headers
2021-07-11T17:31:39,021   copying ./matrix.h -> build/bdist.linux-armv7l/wheel/ikalman-0.1.7.data/headers
2021-07-11T17:31:39,024   copying kalman.h -> build/bdist.linux-armv7l/wheel/ikalman-0.1.7.data/headers
2021-07-11T17:31:39,026   error: can't copy 'gpx.h': doesn't exist or not a regular file
2021-07-11T17:31:39,099   Building wheel for ikalman (setup.py): finished with status 'error'
2021-07-11T17:31:39,100   ERROR: Failed building wheel for ikalman
2021-07-11T17:31:39,101   Running setup.py clean for ikalman
2021-07-11T17:31:39,101   Running command /usr/bin/python3 -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-wheel-4_m03wpw/ikalman_729ac379abd94196aaeb544f0990ad3b/setup.py'"'"'; __file__='"'"'/tmp/pip-wheel-4_m03wpw/ikalman_729ac379abd94196aaeb544f0990ad3b/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' clean --all
2021-07-11T17:31:39,993   running clean
2021-07-11T17:31:39,995   removing 'build/temp.linux-armv7l-3.9' (and everything under it)
2021-07-11T17:31:39,997   removing 'build/lib.linux-armv7l-3.9' (and everything under it)
2021-07-11T17:31:39,998   removing 'build/bdist.linux-armv7l' (and everything under it)
2021-07-11T17:31:40,002   'build/scripts-3.9' does not exist -- can't clean it
2021-07-11T17:31:40,003   removing 'build'
2021-07-11T17:31:40,058 Failed to build ikalman
2021-07-11T17:31:40,059 ERROR: Failed to build one or more wheels
2021-07-11T17:31:40,060 Exception information:
2021-07-11T17:31:40,060 Traceback (most recent call last):
2021-07-11T17:31:40,060   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/cli/base_command.py", line 180, in _main
2021-07-11T17:31:40,060     status = self.run(options, args)
2021-07-11T17:31:40,060   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/cli/req_command.py", line 205, in wrapper
2021-07-11T17:31:40,060     return func(self, options, args)
2021-07-11T17:31:40,060   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/commands/wheel.py", line 174, in run
2021-07-11T17:31:40,060     raise CommandError(
2021-07-11T17:31:40,060 pip._internal.exceptions.CommandError: Failed to build one or more wheels
2021-07-11T17:31:40,063 Removed build tracker: '/tmp/pip-req-tracker-wdyg351s'