[BUG] Building with Docker Fails (Couldn't resolve host name)

[davidallendj]

When running the docker build command mentioned in the README, I get the following error:

docker build -t manta .
[+] Building 41.6s (11/16)                                                                                                                                    docker:default
 => [internal] load build definition from Dockerfile                                                                                                                    0.1s
 => => transferring dockerfile: 849B                                                                                                                                    0.0s
 => WARN: FromAsCasing: 'as' and 'FROM' keywords' casing do not match (line 1)                                                                                          0.1s
 => [internal] load metadata for docker.io/library/debian:bookworm-slim                                                                                                 6.8s
 => [internal] load metadata for docker.io/library/rust:1.72.1                                                                                                          6.9s
 => [internal] load .dockerignore                                                                                                                                       0.0s
 => => transferring context: 2B                                                                                                                                         0.0s
 => [builder 1/4] FROM docker.io/library/rust:1.72.1@sha256:911acdfd39276ead0dfb583a833f1db7d787ad0d5333848378d88f19e5fc158c                                            0.0s
 => CACHED [stage-1 1/7] FROM docker.io/library/debian:bookworm-slim@sha256:12c396bd585df7ec21d5679bb6a83d4878bc4415ce926c9e5ea6426d23c60bdc                            0.0s
 => [internal] load build context                                                                                                                                       0.2s
 => => transferring context: 474.61kB                                                                                                                                   0.1s
 => CANCELED [stage-1 2/7] RUN apt-get update && apt-get install -y pkg-config libssl-dev && rm -rf /var/lib/apt/lists/*                                               34.4s
 => CACHED [builder 2/4] WORKDIR /usr/src/manta                                                                                                                         0.0s
 => CACHED [builder 3/4] COPY . .                                                                                                                                       0.0s
 => ERROR [builder 4/4] RUN cargo install --path .                                                                                                                     34.0s
------                                                                                                                                                                       
 > [builder 4/4] RUN cargo install --path .:                                                                                                                                 
0.355   Installing manta v1.54.31 (/usr/src/manta)                                                                                                                           
0.377     Updating crates.io index                                                                                                                                           
6.249 warning: spurious network error (3 tries remaining): [6] Couldn't resolve host name (Could not resolve host: index.crates.io)                                          
12.39 warning: spurious network error (2 tries remaining): [6] Couldn't resolve host name (Could not resolve host: index.crates.io)                                          
21.61 warning: spurious network error (1 tries remaining): [6] Couldn't resolve host name (Could not resolve host: index.crates.io)                                          
33.90 error: failed to compile `manta v1.54.31 (/usr/src/manta)`, intermediate artifacts can be found at `/usr/src/manta/target`.                                            
33.90 To reuse those artifacts with a future compilation, set the environment variable `CARGO_TARGET_DIR` to that path.
33.90 
33.90 Caused by:
33.90   failed to get `anyhow` as a dependency of package `manta v1.54.31 (/usr/src/manta)`
33.90 
33.90 Caused by:
33.90   failed to query replaced source registry `crates-io`
33.90 
33.90 Caused by:
33.90   download of config.json failed
33.90 
33.90 Caused by:
33.90   failed to download from `https://index.crates.io/config.json`
33.90 
33.90 Caused by:
33.90   [6] Couldn't resolve host name (Could not resolve host: index.crates.io)
------

 1 warning found (use docker --debug to expand):
 - FromAsCasing: 'as' and 'FROM' keywords' casing do not match (line 1)
Dockerfile:8
--------------------
   6 |     COPY . .
   7 |     # RUN cargo install --target x86_64-unknown-linux-gnu --path .
   8 | >>> RUN cargo install --path .
   9 |     
  10 |     # FROM debian:bullseye
--------------------
ERROR: failed to solve: process "/bin/sh -c cargo install --path ." did not complete successfully: exit code: 101
exit status 1

It looks like a name resolution failure, but I'm about to ping the host with no issue.

ping index.crates.io   
PING index.crates.io (2600:9000:20f4:4800:1f:a9f5:69c0:93a1) 56 data bytes
64 bytes from 2600:9000:20f4:4800:1f:a9f5:69c0:93a1: icmp_seq=1 ttl=53 time=23.1 ms
64 bytes from 2600:9000:20f4:4800:1f:a9f5:69c0:93a1: icmp_seq=2 ttl=53 time=24.5 ms
64 bytes from 2600:9000:20f4:4800:1f:a9f5:69c0:93a1: icmp_seq=3 ttl=53 time=31.6 ms
64 bytes from 2600:9000:20f4:4800:1f:a9f5:69c0:93a1: icmp_seq=4 ttl=53 time=23.9 ms
^C
--- index.crates.io ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3002ms
rtt min/avg/max/mdev = 23.079/25.779/31.621/3.410 ms

Any ideas what may be causing this?

[davidallendj]

I was able to get past this error by adding --network=host to the command. So now the command looks like docker build -t manta --network=host . instead.