/bin/sh: 1: cargo: not found

[ppdogg]

I was building the project in ssh connected to a remote virtual machine.
when I execute make, the error comes with:

/bin/sh: 1: cargo: not found

I look it up and found this solution works for me: https://stackoverflow.com/questions/49676490/when-installing-rust-toolchain-in-docker-bash-source-command-doesnt-work

I made these changes in toda/Dockerfile:

• change sh to bash

RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | bash -s -- --default-toolchain nightly-2021-12-23 -y

• modify ENV grammer

ENV PATH="/root/.cargo/bin:${PATH}"

However, in my own computer, which is mac os, I build this project successfully without changing anything. I believe remote virtual machine might encounter this problem.

[YangKeao]

I don't think these modification is needed.

For the first, https://rustup.rs/ told me it supports the sh.

For the second, see the "Alternative syntax" in https://docs.docker.com/engine/reference/builder/#env (though, I agree that including the "=" is better 🤦‍♂️ )

As the Dockerfile are executed inside a container, I don't think there are any difference between a mac os and a virtual machine (actually, the docker will run a virtual machine for mac os).

I guess there were some network issues, which cause the rustup script somehow failed to install the rustc, cargo, etc but doesn't return the error. I'm not sure.

[ppdogg]

I agree that building a docker image has nothing to do with host os, but that's the part that confused me.
I believe the error comes from either a modified centos or a rust installation problem. thanks for replying