guix package: error: build failed: some substitutes for the outputs of derivation hash.drv failed (usually happens due to networking issues); try `--fallback' to build derivation from source

guix package: error: build failed: some substitutes for the outputs of derivation hash.drv failed (usually happens due to networking issues); try `--fallback' to build derivation from source

[znavko]

[-- Attachment #1: Type: text/plain, Size: 1931 bytes --]

Is there any description of mechanism of updating and package installation.
I think guix downloads sources and then build them. I think there is a cache od downloaded archives.
But what exactly do here?

# guix package -u
updating substitutes from 'https://mirror.hydra.gnu.org <https://mirror.hydra.gnu.org>'... 100.0%
substitute: updating substitutes from 'https://mirror.hydra.gnu.org <https://mirror.hydra.gnu.org>'... 100.0%
guix substitute: error: download from 'https://mirror.hydra.gnu.org/guix/nar/gzip/yq82kwc1id78087idl8j4ywmy22b4v80-gtksourceview-3.24.8' <https://mirror.hydra.gnu.org/guix/nar/gzip/yq82kwc1id78087idl8j4ywmy22b4v80-gtksourceview-3.24.8'> failed: 504, "Gateway Time-out"
substitution of /gnu/store/yq82kwc1id78087idl8j4ywmy22b4v80-gtksourceview-3.24.8 failed
killing process 32540
guix package: error: build failed: some substitutes for the outputs of derivation `/gnu/store/8z50cls0f27yimw3qyn90ck2fwndsic9-gtksourceview-3.24.8.drv' failed (usually happens due to networking issues); try `--fallback' to build derivation from source 

# guix package --fallback
# guix package -u
guix substitute: error: download from 'https://mirror.hydra.gnu.org/guix/nar/gzip/yq82kwc1id78087idl8j4ywmy22b4v80-gtksourceview-3.24.8' <https://mirror.hydra.gnu.org/guix/nar/gzip/yq82kwc1id78087idl8j4ywmy22b4v80-gtksourceview-3.24.8'> failed: 504, "Gateway Time-out"
substitution of /gnu/store/yq82kwc1id78087idl8j4ywmy22b4v80-gtksourceview-3.24.8 failed
killing process 32581
guix package: error: build failed: some substitutes for the outputs of derivation `/gnu/store/8z50cls0f27yimw3qyn90ck2fwndsic9-gtksourceview-3.24.8.drv' failed (usually happens due to networking issues); try `--fallback' to build derivation from source 

# guix package -u --fallback
guix package: warning: upgrade regexp '--fallback' looks like a command-line option
guix package: warning: is this intended?


Do I need to delete cache files?

[-- Attachment #2: Type: text/html, Size: 2424 bytes --]

Re: guix package: error: build failed: some substitutes for the outputs of derivation hash.drv failed (usually happens due to networking issues); try `--fallback' to build derivation from source

[Ricardo Wurmus]

Hi,

> # guix package -u --fallback
> guix package: warning: upgrade regexp '--fallback' looks like a command-line option
> guix package: warning: is this intended?

The correct invokation is:

    guix package -u . --fallback

because “-u” takes an optional regular expression.

When hydra is not responsive you could try to fetch substitutes from a
different build farm such as berlin.guixsd.org.  Note that you may need
to authorize the public key for berlin.guixsd.org first before Guix will
accept substitutes from there.

--
Ricardo