image build error

[LHolst]

when i run docker build -t whitebox-tools . i am getting these errors

error[E0658]: `crate` in paths is experimental (see issue #45477)
  --> src/main.rs:44:5
   |
44 | use crate::tools::ToolManager;
   |     ^^^^^

error: aborting due to 1545 previous errors

Some errors occurred: E0412, E0425, E0432, E0433, E0658.
For more information about an error, try `rustc --explain E0412`.
error: Could not compile `whitebox_tools`.

To learn more, run the command again with --verbose.
The command '/bin/sh -c git clone https://github.com/jblindsay/whitebox-tools.git ${APP_HOME}/whitebox &&     cd ${APP_HOME}/whitebox &&     cargo build --release &&     mv target/release/whitebox_tools /usr/local/bin' returned a non-zero code: 101

[LHolst]

changes in Dockerfile

-FROM rust:1.26.2-slim-stretch
+FROM rust:1.31.1-slim-stretch

solved the issue and builds whitebox_tools v0.13.0 just fine

[wchatx]

@LHolst thanks for the heads up! for reference, when I started the project, whitebox-tools didn't have any releases. I see that's changed now so I'll tie this to the upstream tags.