Building samus after a sync, coreboot-sdk takes forever to build:

Total: 2 packages (2 upgrades, 1 binary), Size of downloads: 0 KiB
Pending 0/2, Fetching 2/2, [Time 10:43:29 | Elapsed 0m28.8s | Load 6.19 11.29 10.81]
Fetched virtual/target-chromium-os-sdk-1-r96 in 0.15s
Fetched dev-embedded/coreboot-sdk-0.0.1-r63 in 7.83s
Started dev-embedded/coreboot-sdk-0.0.1-r63 (logged in /tmp/coreboot-sdk-0.0.1-r63-DwPalu)
Pending 1/2, Building 1/1, [Time 10:44:37 | Elapsed 1m36.7s | Load 3.53 9.42 10.19]
Still building coreboot-sdk-0.0.1-r63 (2m0.1s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu
Pending 1/2, Building 1/1, [Time 10:46:37 | Elapsed 3m36.8s | Load 5.46 8.19 9.64]
Still building coreboot-sdk-0.0.1-r63 (4m0.2s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu
Pending 1/2, Building 1/1, [Time 10:48:37 | Elapsed 5m36.9s | Load 10.44 9.14 9.8]
Still building coreboot-sdk-0.0.1-r63 (6m0.3s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu
Pending 1/2, Building 1/1, [Time 10:50:37 | Elapsed 7m37.0s | Load 7.37 7.81 9.2]
Still building coreboot-sdk-0.0.1-r63 (8m0.4s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu
Pending 1/2, Building 1/1, [Time 10:52:37 | Elapsed 9m37.1s | Load 4.12 6.74 8.66]
Still building coreboot-sdk-0.0.1-r63 (10m0.5s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu
Pending 1/2, Building 1/1, [Time 10:54:37 | Elapsed 11m37.2s | Load 39.91 18.22 12.53]
Still building coreboot-sdk-0.0.1-r63 (12m0.6s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu
Pending 1/2, Building 1/1, [Time 10:56:37 | Elapsed 13m37.3s | Load 15.07 18.07 13.33]
Still building coreboot-sdk-0.0.1-r63 (14m0.7s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu
Pending 1/2, Building 1/1, [Time 10:58:37 | Elapsed 15m37.4s | Load 3.22 12.57 11.88]
Still building coreboot-sdk-0.0.1-r63 (16m0.8s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu
Pending 1/2, Building 1/1, [Time 11:00:37 | Elapsed 17m37.5s | Load 18.54 13.26 12.09]
Still building coreboot-sdk-0.0.1-r63 (18m0.9s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu
Pending 1/2, Building 1/1, [Time 11:02:38 | Elapsed 19m37.6s | Load 8.49 10.34 11.12]
Still building coreboot-sdk-0.0.1-r63 (20m1.0s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu
Pending 1/2, Building 1/1, [Time 11:04:38 | Elapsed 21m37.7s | Load 1.78 7.25 9.89]
Still building coreboot-sdk-0.0.1-r63 (22m1.1s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu
Pending 1/2, Building 1/1, [Time 11:06:38 | Elapsed 23m37.8s | Load 6.82 7.16 9.52]
Still building coreboot-sdk-0.0.1-r63 (24m1.2s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu
Pending 1/2, Building 1/1, [Time 11:08:38 | Elapsed 25m37.9s | Load 10.53 9.18 10.0]

Still building coreboot-sdk-0.0.1-r63 (26m1.3s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu
Pending 1/2, Building 1/1, [Time 11:10:38 | Elapsed 27m38.0s | Load 8.36 8.53 9.65]
Still building coreboot-sdk-0.0.1-r63 (28m1.4s). Logs in /tmp/coreboot-sdk-0.0.1-r63-DwPalu

This is blocking important Meltdown/Spectre work.