We want to make additions to our crate's hardware and need to generate our own board files. I am encountering an issue in trying to follow the instructions at https://m-labs.hk/artiq/manual/developing.html on our Ubuntu 20.04 VM. Namely, when trying nix develop git+https://github.com/m-labs/artiq.git\?ref=release-7, I see
warning: ignoring untrusted substituter 'https://nixbld.m-labs.hk'
warning: Using saved setting for 'extra-sandbox-paths = /opt' from ~/.local/share/nix/trusted-settings.json.
warning: Using saved setting for 'extra-substituters = https://nixbld.m-labs.hk' from ~/.local/share/nix/trusted-settings.json.
warning: Using saved setting for 'extra-trusted-public-keys = nixbld.m-labs.hk-1:5aSRVA5b320xbNvu30tqxVPXpld73bhtOeH6uAjRyHc=' from ~/.local/share/nix/trusted-settings.json.
warning: ignoring untrusted substituter 'https://nixbld.m-labs.hk'
warning: ignoring untrusted substituter 'https://nixbld.m-labs.hk'
warning: ignoring untrusted substituter 'https://nixbld.m-labs.hk'
warning: ignoring untrusted substituter 'https://nixbld.m-labs.hk'
I am starting to suspect that the issue is not related to the untrusted substituter, but I have tried changing trusted-users and trusted-substituters in nix.conf with no luck. Vivado 2022.2 installed successfully has a symlink to the appropriate location in /opt. I am able to spawn a nix shell and start the dashboard.
The output of nix show-config is currently (with "user" in trusted-user replaced):
accept-flake-config = false
access-tokens =
allow-dirty = true
allow-import-from-derivation = true
allow-new-privileges = false
allow-symlinked-store = false
allow-unsafe-native-code-during-evaluation = false
allowed-impure-host-deps =
allowed-uris =
allowed-users = *
auto-optimise-store = false
bash-prompt =
bash-prompt-prefix =
bash-prompt-suffix =
build-hook = /nix/store/xdlpraypxdimjyfrr4k06narrv8nmfgh-nix-2.11.1/bin/nix __build-remote
build-poll-interval = 5
build-users-group = nixbld
builders = @/etc/nix/machines
builders-use-substitutes = false
commit-lockfile-summary =
compress-build-log = true
connect-timeout = 0
cores = 8
diff-hook =
download-attempts = 5
download-speed = 0
enforce-determinism = true
eval-cache = true
experimental-features = flakes nix-command
extra-platforms = i686-linux x86_64-v1-linux x86_64-v2-linux
fallback = false
filter-syscalls = true
flake-registry = https://channels.nixos.org/flake-registry.json
fsync-metadata = true
gc-reserved-space = 8388608
hashed-mirrors =
http-connections = 25
http2 = true
ignore-try = false
ignored-acls = security.csm security.selinux system.nfs4_acl
impersonate-linux-26 = false
keep-build-log = true
keep-derivations = true
keep-env-derivations = false
keep-failed = false
keep-going = false
keep-outputs = false
log-lines = 10
max-build-log-size = 0
max-free = 18446744073709551615
max-jobs = 1
max-silent-time = 0
min-free = 0
min-free-check-interval = 5
nar-buffer-size = 33554432
narinfo-cache-negative-ttl = 3600
narinfo-cache-positive-ttl = 2592000
netrc-file = /etc/nix/netrc
nix-path = nixpkgs=/nix/var/nix/profiles/per-user/root/channels/nixpkgs /nix/var/nix/profiles/per-user/root/channels
plugin-files =
post-build-hook =
pre-build-hook =
preallocate-contents = false
print-missing = true
pure-eval = true
repeat = 0
require-sigs = true
restrict-eval = false
run-diff-hook = false
sandbox = true
sandbox-build-dir = /build
sandbox-dev-shm-size = 50%
sandbox-fallback = true
sandbox-paths = /bin/sh=/nix/store/0296qxvn30z9b2ah1g5p97k5wr9k8y78-busybox-static-x86_64-unknown-linux-musl-1.35.0/bin/busybox
secret-key-files =
show-trace = false
stalled-download-timeout = 300
store = auto
substitute = true
substituters = https://cache.nixos.org https://nixbld.m-labs.hk
sync-before-registering = false
system = x86_64-linux
system-features = benchmark big-parallel nixos-test
tarball-ttl = 3600
timeout = 0
trace-function-calls = false
trace-verbose = false
trusted-public-keys = nixbld.m-labs.hk-1:5aSRVA5b320xbNvu30tqxVPXpld73bhtOeH6uAjRyHc= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
trusted-substituters =
trusted-users = root user
use-case-hack = false
use-registries = true
use-sqlite-wal = true
user-agent-suffix =
warn-dirty = true
and nix.conf is currently
experimental-features = nix-command flakes
trusted-users = root user
substituters = https://cache.nixos.org https://nixbld.m-labs.hk
trusted-public-keys = nixbld.m-labs.hk-1:5aSRVA5b320xbNvu30tqxVPXpld73bhtOeH6uAjRyHc= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
I have tried with and without the additional lines in nix.conf to attempt to address the "untrusted substituter" issue and won't be surprised if it is something else entirely; any help identifying this issue would be appreciated. Please let me know if I can provide anymore information and thank you!