build packages.x86_64-linux.backend-dev

Reproduce this run
  1. 0.01 s $ /nix/store/wkkwxc04gdw6b263l1h29pjarjnjdyb6-coreutils-9.8/bin/timeout --kill-after=15s 1800s /nix/store/vnjf0zi1lbln0srm2z743j70kjav76ln-nix-2.34.4/bin/nix --extra-experimental-features nix-command --extra-experimental-features flakes build --no-link git+https://codeberg.org/mtlynch/little-moments?ref=master&rev=9e8e88a70aa608f3d69e1f3b71659c333f09650b#packages.x86_64-linux.backend-dev --print-build-logs
  2. 0.25 s remote: Enumerating objects: 1012, done.
  3. 0.25 s remote: Counting objects: 0% (1/1012) remote: Counting objects: 1% (11/1012) remote: Counting objects: 2% (21/1012) remote: Counting objects: 3% (31/1012) remote: Counting objects: 4% (41/1012) remote: Counting objects: 5% (51/1012) remote: Counting objects: 6% (61/1012) remote: Counting objects: 7% (71/1012) remote: Counting objects: 8% (81/1012) remote: Counting objects: 9% (92/1012) remote: Counting objects: 10% (102/1012) remote: Counting objects: 11% (112/1012) remote: Counting objects: 12% (122/1012) remote: Counting objects: 13% (132/1012) remote: Counting objects: 14% (142/1012) remote: Counting objects: 15% (152/1012) remote: Counting objects: 16% (162/1012) remote: Counting objects: 17% (173/1012) remote: Counting objects: 18% (183/1012) remote: Counting objects: 19% (193/1012) remote: Counting objects: 20% (203/1012) remote: Counting objects: 21% (213/1012) remote: Counting objects: 22% (223/1012) remote: Counting objects: 23% (233/1012) remote: Counting objects: 24% (243/1012) remote: Counting objects: 25% (253/1012) remote: Counting objects: 26% (264/1012) remote: Counting objects: 27% (274/1012)
  4. 0.25 s remote: Counting objects: 28% (284/1012) remote: Counting objects: 29% (294/1012) remote: Counting objects: 30% (304/1012) remote: Counting objects: 31% (314/1012) remote: Counting objects: 32% (324/1012) remote: Counting objects: 33% (334/1012) remote: Counting objects: 34% (345/1012) remote: Counting objects: 35% (355/1012) remote: Counting objects: 36% (365/1012) remote: Counting objects: 37% (375/1012) remote: Counting objects: 38% (385/1012) remote: Counting objects: 39% (395/1012)
  5. 0.25 s remote: Counting objects: 40% (405/1012) remote: Counting objects: 41% (415/1012) remote: Counting objects: 42% (426/1012)
  6. 0.25 s remote: Counting objects: 43% (436/1012)
  7. 0.25 s remote: Counting objects: 44% (446/1012) remote: Counting objects: 45% (456/1012)
  8. 0.25 s remote: Counting objects: 46% (466/1012) remote: Counting objects: 47% (476/1012) remote: Counting objects: 48% (486/1012) remote: Counting objects: 49% (496/1012) remote: Counting objects: 50% (506/1012) remote: Counting objects: 51% (517/1012) remote: Counting objects: 52% (527/1012) remote: Counting objects: 53% (537/1012) remote: Counting objects: 54% (547/1012) remote: Counting objects: 55% (557/1012) remote: Counting objects: 56% (567/1012) remote: Counting objects: 57% (577/1012) remote: Counting objects: 58% (587/1012) remote: Counting objects: 59% (598/1012) remote: Counting objects: 60% (608/1012) remote: Counting objects: 61% (618/1012) remote: Counting objects: 62% (628/1012) remote: Counting objects: 63% (638/1012) remote: Counting objects: 64% (648/1012) remote: Counting objects: 65% (658/1012) remote: Counting objects: 66% (668/1012) remote: Counting objects: 67% (679/1012) remote: Counting objects: 68% (689/1012) remote: Counting objects: 69% (699/1012) remote: Counting objects: 70% (709/1012) remote: Counting objects: 71% (719/1012) remote: Counting objects: 72% (729/1012) remote: Counting objects: 73% (739/1012) remote: Counting objects: 74% (749/1012) remote: Counting objects: 75% (759/1012) remote: Counting objects: 76% (770/1012) remote: Counting objects: 77% (780/1012) remote: Counting objects: 78% (790/1012) remote: Counting objects: 79% (800/1012) remote: Counting objects: 80% (810/1012) remote: Counting objects: 81% (820/1012) remote: Counting objects: 82% (830/1012) remote: Counting objects: 83% (840/1012) remote: Counting objects: 84% (851/1012) remote: Counting objects: 85% (861/1012) remote: Counting objects: 86% (871/1012) remote: Counting objects: 87% (881/1012) remote: Counting objects: 88% (891/1012) remote: Counting objects: 89% (901/1012) remote: Counting objects: 90% (911/1012) remote: Counting objects: 91% (921/1012) remote: Counting objects: 92% (932/1012) remote: Counting objects: 93% (942/1012) remote: Counting objects: 94% (952/1012) remote: Counting objects: 95% (962/1012) remote: Counting objects: 96% (972/1012) remote: Counting objects: 97% (982/1012) remote: Counting objects: 98% (992/1012) remote: Counting objects: 99% (1002/1012) remote: Counting objects: 100% (1012/1012) remote: Counting objects: 100% (1012/1012), done.
  9. 0.25 s remote: Compressing objects: 0% (1/535) remote: Compressing objects: 1% (6/535) remote: Compressing objects: 2% (11/535) remote: Compressing objects: 3% (17/535) remote: Compressing objects: 4% (22/535) remote: Compressing objects: 5% (27/535) remote: Compressing objects: 6% (33/535) remote: Compressing objects: 7% (38/535) remote: Compressing objects: 8% (43/535) remote: Compressing objects: 9% (49/535) remote: Compressing objects: 10% (54/535) remote: Compressing objects: 11% (59/535) remote: Compressing objects: 12% (65/535) remote: Compressing objects: 13% (70/535) remote: Compressing objects: 14% (75/535) remote: Compressing objects: 15% (81/535) remote: Compressing objects: 16% (86/535) remote: Compressing objects: 17% (91/535) remote: Compressing objects: 18% (97/535) remote: Compressing objects: 19% (102/535) remote: Compressing objects: 20% (107/535) remote: Compressing objects: 21% (113/535) remote: Compressing objects: 22% (118/535) remote: Compressing objects: 23% (124/535) remote: Com
  10. 0.25 s pressing objects: 24% (129/535) remote: Compressing objects: 25% (134/535) remote: Compressing objects: 26% (140/535) remote: Compressing objects: 27% (145/535) remote: Compressing objects: 28% (150/535) remote: Compressing objects: 29% (156/535) remote: Compressing objects: 30% (161/535) remote: Compressing objects: 31% (166/535) remote: Compressing objects: 32% (172/535) remote: Compressing objects: 33% (177/535) remote: Compressing objects: 34% (182/535) remote: Compressing objects: 35% (188/535)
  11. 0.25 s remote: Compressing objects: 36% (193/535) remote: Compressing objects: 37% (198/535) remote: Compressing objects: 38% (204/535) remote: Compressing objects: 39% (209/535)
  12. 0.25 s remote: Compressing objects: 40% (214/535) remote: Compressing objects: 41% (220/535)
  13. 0.25 s remote: Compressing objects: 42% (225/535) remote: Compressing objects: 43% (231/535)
  14. 0.25 s remote: Compressing objects: 44% (236/535) remote: Compressing objects: 45% (241/535)
  15. 0.25 s remote: Compressing objects: 46% (247/535)
  16. 0.25 s remote: Compressing objects: 47% (252/535) remote: Compressing objects: 48% (257/535)
  17. 0.25 s remote: Compressing objects: 49% (263/535) remote: Compressing objects: 50% (268/535)
  18. 0.25 s remote: Compressing objects: 51% (273/535)
  19. 0.25 s remote: Compressing objects: 52% (279/535) remote: Compressing objects: 53% (284/535)
  20. 0.25 s remote: Compressing objects: 54% (289/535) remote: Compressing objects: 55% (295/535) remote: Compressing objects: 56% (300/535) remote: Compressing objects: 57% (305/535) remote: Compressing objects: 58% (311/535) remote: Compressing objects: 59% (316/535) remote: Compressing objects: 60% (321/535) remote: Compressing objects: 61% (327/535) remote: Compressing objects: 62% (332/535) remote: Compressing objects: 63% (338/535) remote: Compressing objects: 64% (343/535) remote: Compressing objects: 65% (348/535) remote: Compressing objects: 66% (354/535)
  21. 0.25 s remote: Compressing objects: 67% (359/535) remote: Compressing objects: 68% (364/535)
  22. 0.25 s remote: Compressing objects: 69% (370/535)
  23. 0.25 s remote: Compressing objects: 70% (375/535) remote: Compressing objects: 71% (380/535)
  24. 0.25 s remote: Compressing objects: 72% (386/535) remote: Compressing objects: 73% (391/535)
  25. 0.25 s remote: Compressing objects: 74% (396/535)
  26. 0.25 s remote: Compressing objects: 75% (402/535) remote: Compressing objects: 76% (407/535) remote: Compressing objects: 77% (412/535)
  27. 0.25 s remote: Compressing objects: 78% (418/535) remote: Compressing objects: 79% (423/535) remote: Compressing objects: 80% (428/535) remote: Compressing objects: 81% (434/535)
  28. 0.25 s remote: Compressing objects: 82% (439/535) remote: Compressing objects: 83% (445/535) remote: Compressing objects: 84% (450/535)
  29. 0.25 s remote: Compressing objects: 85% (455/535) remote: Compressing objects: 86% (461/535)
  30. 0.25 s remote: Compressing objects: 87% (466/535) remote: Compressing objects: 88% (471/535)
  31. 0.25 s remote: Compressing objects: 89% (477/535) remote: Compressing objects: 90% (482/535) remote: Compressing objects: 91% (487/535) remote: Compressing objects: 92% (493/535) remote: Compressing objects: 93% (498/535) remote: Compressing objects: 94% (503/535) remote: Compressing objects: 95% (509/535) remote: Compressing objects: 96% (514/535) remote: Compressing objects: 97% (519/535) remote: Compressing objects: 98% (525/535) remote: Compressing objects: 99% (530/535) remote: Compressing objects: 100% (535/535) remote: Compressing objects: 100% (535/535), done.
  32. 0.27 s Receiving objects: 0% (1/1012)
  33. 0.27 s Receiving objects: 1% (11/1012)
  34. 0.27 s Receiving objects: 2% (21/1012)
  35. 0.27 s Receiving objects: 3% (31/1012)
  36. 0.27 s Receiving objects: 4% (41/1012)
  37. 0.27 s Receiving objects: 5% (51/1012)
  38. 0.27 s Receiving objects: 6% (61/1012)
  39. 0.27 s Receiving objects: 7% (71/1012)
  40. 0.28 s Receiving objects: 8% (81/1012)
  41. 0.28 s Receiving objects: 9% (92/1012)
  42. 0.28 s Receiving objects: 10% (102/1012)
  43. 0.28 s Receiving objects: 11% (112/1012)
  44. 0.28 s Receiving objects: 12% (122/1012)
  45. 0.28 s Receiving objects: 13% (132/1012)
  46. 0.28 s Receiving objects: 14% (142/1012)
  47. 0.29 s Receiving objects: 15% (152/1012)
  48. 0.29 s Receiving objects: 16% (162/1012)
  49. 0.29 s Receiving objects: 17% (173/1012)
  50. 0.29 s Receiving objects: 18% (183/1012)
  51. 0.30 s Receiving objects: 19% (193/1012)
  52. 0.30 s Receiving objects: 20% (203/1012)
  53. 0.30 s Receiving objects: 21% (213/1012)
  54. 0.32 s Receiving objects: 22% (223/1012)
  55. 0.32 s Receiving objects: 23% (233/1012)
  56. 0.32 s Receiving objects: 24% (243/1012)
  57. 0.32 s Receiving objects: 25% (253/1012)
  58. 0.32 s Receiving objects: 26% (264/1012)
  59. 0.32 s Receiving objects: 27% (274/1012)
  60. 0.32 s Receiving objects: 28% (284/1012)
  61. 0.32 s Receiving objects: 29% (294/1012)
  62. 0.32 s Receiving objects: 30% (304/1012)
  63. 0.34 s Receiving objects: 31% (314/1012)
  64. 0.34 s Receiving objects: 32% (324/1012)
  65. 0.34 s Receiving objects: 33% (334/1012)
  66. 0.34 s Receiving objects: 34% (345/1012) Receiving objects: 35% (355/1012)
  67. 0.34 s Receiving objects: 36% (365/1012) Receiving objects: 37% (375/1012) Receiving objects: 38% (385/1012)
  68. 0.34 s Receiving objects: 39% (395/1012) Receiving objects: 40% (405/1012)
  69. 0.34 s Receiving objects: 41% (415/1012) Receiving objects: 42% (426/1012)
  70. 0.34 s Receiving objects: 43% (436/1012) Receiving objects: 44% (446/1012)
  71. 0.34 s Receiving objects: 45% (456/1012) Receiving objects: 46% (466/1012) Receiving objects: 47% (476/1012)
  72. 0.34 s Receiving objects: 48% (486/1012)
  73. 0.34 s Receiving objects: 49% (496/1012) Receiving objects: 50% (506/1012)
  74. 0.34 s Receiving objects: 51% (517/1012)
  75. 0.34 s Receiving objects: 52% (527/1012) Receiving objects: 53% (537/1012)
  76. 0.34 s Receiving objects: 54% (547/1012) Receiving objects: 55% (557/1012) Receiving objects: 56% (567/1012)
  77. 0.34 s Receiving objects: 57% (577/1012)
  78. 0.34 s Receiving objects: 58% (587/1012) Receiving objects: 59% (598/1012)
  79. 0.34 s Receiving objects: 60% (608/1012)
  80. 0.34 s Receiving objects: 61% (618/1012)
  81. 0.34 s Receiving objects: 62% (628/1012)
  82. 0.34 s Receiving objects: 63% (638/1012) Receiving objects: 64% (648/1012) Receiving objects: 65% (658/1012) Receiving objects: 66% (668/1012)
  83. 0.34 s Receiving objects: 67% (679/1012) Receiving objects: 68% (689/1012) Receiving objects: 69% (699/1012)
  84. 0.34 s Receiving objects: 70% (709/1012) Receiving objects: 71% (719/1012)
  85. 0.34 s Receiving objects: 72% (729/1012) Receiving objects: 73% (739/1012)
  86. 0.34 s Receiving objects: 74% (749/1012) Receiving objects: 75% (759/1012)
  87. 0.34 s Receiving objects: 76% (770/1012)
  88. 0.34 s Receiving objects: 77% (780/1012) Receiving objects: 78% (790/1012) Receiving objects: 79% (800/1012)
  89. 0.34 s Receiving objects: 80% (810/1012)
  90. 0.34 s Receiving objects: 81% (820/1012)
  91. 0.35 s Receiving objects: 82% (830/1012)
  92. 0.35 s Receiving objects: 83% (840/1012)
  93. 0.35 s Receiving objects: 84% (851/1012) Receiving objects: 85% (861/1012) Receiving objects: 86% (871/1012)
  94. 0.35 s Receiving objects: 87% (881/1012)
  95. 0.35 s Receiving objects: 88% (891/1012)
  96. 0.35 s Receiving objects: 89% (901/1012) remote: Total 1012 (delta 543), reused 863 (delta 412), pack-reused 0 (from 0)
  97. 0.35 s Receiving objects: 90% (911/1012) Receiving objects: 91% (921/1012) Receiving objects: 92% (932/1012)
  98. 0.35 s Receiving objects: 93% (942/1012)
  99. 0.35 s Receiving objects: 94% (952/1012) Receiving objects: 95% (962/1012)
  100. 0.35 s Receiving objects: 96% (972/1012) Receiving objects: 97% (982/1012)
  101. 0.35 s Receiving objects: 98% (992/1012) Receiving objects: 99% (1002/1012)
  102. 0.35 s Receiving objects: 100% (1012/1012)
  103. 0.35 s Receiving objects: 100% (1012/1012), 1.84 MiB | 22.15 MiB/s, done.
  104. 0.35 s Resolving deltas: 0% (0/543)
  105. 0.35 s Resolving deltas: 1% (6/543)
  106. 0.35 s Resolving deltas: 2% (11/543)
  107. 0.35 s Resolving deltas: 3% (17/543)
  108. 0.35 s Resolving deltas: 4% (22/543)
  109. 0.35 s Resolving deltas: 5% (28/543)
  110. 0.35 s Resolving deltas: 6% (33/543)
  111. 0.35 s Resolving deltas: 7% (39/543)
  112. 0.35 s Resolving deltas: 8% (44/543)
  113. 0.35 s Resolving deltas: 9% (49/543)
  114. 0.35 s Resolving deltas: 10% (55/543)
  115. 0.35 s Resolving deltas: 11% (60/543)
  116. 0.35 s Resolving deltas: 12% (66/543)
  117. 0.35 s Resolving deltas: 13% (71/543)
  118. 0.35 s Resolving deltas: 14% (77/543)
  119. 0.35 s Resolving deltas: 15% (82/543)
  120. 0.35 s Resolving deltas: 16% (87/543)
  121. 0.35 s Resolving deltas: 17% (94/543)
  122. 0.35 s Resolving deltas: 18% (98/543)
  123. 0.35 s Resolving deltas: 19% (106/543)
  124. 0.35 s Resolving deltas: 20% (109/543)
  125. 0.35 s Resolving deltas: 21% (115/543)
  126. 0.35 s Resolving deltas: 22% (120/543)
  127. 0.35 s Resolving deltas: 23% (125/543) Resolving deltas: 24% (131/543)
  128. 0.35 s Resolving deltas: 25% (136/543)
  129. 0.35 s Resolving deltas: 26% (142/543)
  130. 0.35 s Resolving deltas: 27% (147/543)
  131. 0.35 s Resolving deltas: 28% (153/543)
  132. 0.35 s Resolving deltas: 29% (159/543)
  133. 0.35 s Resolving deltas: 30% (163/543)
  134. 0.35 s Resolving deltas: 31% (169/543)
  135. 0.35 s Resolving deltas: 32% (174/543)
  136. 0.35 s Resolving deltas: 33% (180/543)
  137. 0.35 s Resolving deltas: 34% (185/543)
  138. 0.35 s Resolving deltas: 35% (191/543)
  139. 0.35 s Resolving deltas: 36% (196/543)
  140. 0.35 s Resolving deltas: 37% (201/543)
  141. 0.35 s Resolving deltas: 38% (208/543)
  142. 0.35 s Resolving deltas: 39% (212/543)
  143. 0.35 s Resolving deltas: 40% (218/543)
  144. 0.35 s Resolving deltas: 41% (223/543)
  145. 0.35 s Resolving deltas: 42% (229/543)
  146. 0.35 s Resolving deltas: 43% (234/543)
  147. 0.35 s Resolving deltas: 44% (239/543)
  148. 0.35 s Resolving deltas: 45% (245/543)
  149. 0.35 s Resolving deltas: 46% (250/543)
  150. 0.35 s Resolving deltas: 47% (256/543)
  151. 0.35 s Resolving deltas: 48% (261/543)
  152. 0.35 s Resolving deltas: 49% (267/543)
  153. 0.36 s Resolving deltas: 50% (272/543)
  154. 0.36 s Resolving deltas: 51% (278/543)
  155. 0.36 s Resolving deltas: 52% (283/543)
  156. 0.36 s Resolving deltas: 53% (288/543)
  157. 0.36 s Resolving deltas: 54% (294/543)
  158. 0.36 s Resolving deltas: 55% (299/543)
  159. 0.36 s Resolving deltas: 56% (305/543)
  160. 0.36 s Resolving deltas: 57% (310/543)
  161. 0.36 s Resolving deltas: 58% (315/543)
  162. 0.36 s Resolving deltas: 59% (321/543)
  163. 0.36 s Resolving deltas: 60% (326/543)
  164. 0.36 s Resolving deltas: 61% (332/543)
  165. 0.36 s Resolving deltas: 62% (337/543)
  166. 0.36 s Resolving deltas: 63% (343/543)
  167. 0.36 s Resolving deltas: 64% (348/543)
  168. 0.36 s Resolving deltas: 65% (353/543)
  169. 0.36 s Resolving deltas: 66% (359/543)
  170. 0.36 s Resolving deltas: 67% (364/543)
  171. 0.36 s Resolving deltas: 68% (370/543)
  172. 0.36 s Resolving deltas: 69% (375/543)
  173. 0.36 s Resolving deltas: 70% (381/543)
  174. 0.36 s Resolving deltas: 71% (386/543)
  175. 0.36 s Resolving deltas: 72% (391/543)
  176. 0.36 s Resolving deltas: 73% (397/543)
  177. 0.36 s Resolving deltas: 74% (402/543)
  178. 0.36 s Resolving deltas: 75% (408/543)
  179. 0.36 s Resolving deltas: 76% (413/543)
  180. 0.36 s Resolving deltas: 77% (419/543)
  181. 0.36 s Resolving deltas: 78% (424/543)
  182. 0.36 s Resolving deltas: 79% (429/543)
  183. 0.36 s Resolving deltas: 80% (435/543)
  184. 0.36 s Resolving deltas: 81% (440/543)
  185. 0.36 s Resolving deltas: 82% (449/543)
  186. 0.36 s Resolving deltas: 83% (451/543)
  187. 0.36 s Resolving deltas: 84% (457/543)
  188. 0.36 s Resolving deltas: 85% (462/543)
  189. 0.36 s Resolving deltas: 86% (467/543)
  190. 0.36 s Resolving deltas: 87% (473/543)
  191. 0.36 s Resolving deltas: 88% (479/543)
  192. 0.36 s Resolving deltas: 89% (484/543)
  193. 0.36 s Resolving deltas: 90% (489/543)
  194. 0.36 s Resolving deltas: 91% (496/543)
  195. 0.36 s Resolving deltas: 92% (501/543)
  196. 0.36 s Resolving deltas: 93% (505/543)
  197. 0.36 s Resolving deltas: 94% (513/543)
  198. 0.36 s Resolving deltas: 95% (516/543)
  199. 0.36 s Resolving deltas: 96% (522/543)
  200. 0.36 s Resolving deltas: 97% (527/543)
  201. 0.36 s Resolving deltas: 98% (533/543)
  202. 0.36 s Resolving deltas: 99% (538/543)
  203. 0.36 s Resolving deltas: 100% (543/543)
  204. 0.36 s Resolving deltas: 100% (543/543), done.
  205. 0.37 s From https://codeberg.org/mtlynch/little-moments
  206. 0.37 s * branch 9e8e88a70aa608f3d69e1f3b71659c333f09650b -> FETCH_HEAD
  207. 1.24 s this path will be fetched (4.1 MiB download, 14.4 MiB unpacked):
  208. 1.24 s /nix/store/xq4yksnckkay7phn4x749zc602sb11cg-little-moments-dev-0.0.1
  209. 1.24 s copying path '/nix/store/xq4yksnckkay7phn4x749zc602sb11cg-little-moments-dev-0.0.1' from 'https://cache.nix-ci.com'...
More Logs Raw Logs

Agent Instructions

Wait for completion, without logs:

curl --netrc -N https://nix-ci.com/cb:mtlynch:little-moments/master/9e8e88a70aa608f3d69e1f3b71659c333f09650b/7613db68-8f7c-4523-94f0-44373e6c7c7f/wait

Latest logs, with timestamps (streams while running):

curl --netrc -N https://nix-ci.com/cb:mtlynch:little-moments/master/9e8e88a70aa608f3d69e1f3b71659c333f09650b/7613db68-8f7c-4523-94f0-44373e6c7c7f/tail

All logs, with timestamps (available after completion):

curl --netrc https://nix-ci.com/cb:mtlynch:little-moments/master/9e8e88a70aa608f3d69e1f3b71659c333f09650b/7613db68-8f7c-4523-94f0-44373e6c7c7f/logs

Raw logs, from the start (no timestamps):

curl --netrc -N https://nix-ci.com/cb:mtlynch:little-moments/master/9e8e88a70aa608f3d69e1f3b71659c333f09650b/7613db68-8f7c-4523-94f0-44373e6c7c7f/raw-logs

Content types available for /logs and /tail (use Accept header):

Example:

curl --netrc -H "Accept: text/csv" https://nix-ci.com/cb:mtlynch:little-moments/master/9e8e88a70aa608f3d69e1f3b71659c333f09650b/7613db68-8f7c-4523-94f0-44373e6c7c7f/logs

Reproduce locally: https://nix-ci.com/cb:mtlynch:little-moments/master/9e8e88a70aa608f3d69e1f3b71659c333f09650b/7613db68-8f7c-4523-94f0-44373e6c7c7f/repro

For more instructions, fetch https://nix-ci.com/instructions .