ICE - cannot mix `bin` crate type with others - `[E0601]`

[MahadMuhammad]

main not found in crate - E0601

• using this flag --crate-type=bin
• You can view the same on compiler-explorer

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Code

fn foo() {}

// no main function

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Expected to see this happen:

• Give error when using --crate-type=bin flag.

error[E0601]: `main` function not found in crate `example`

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Instead this happen:

• It complies successfully with warning.

<source>:1:4: warning: function is never used: 'foo'
    1 | fn foo() {}
      |    ^~~
Compiler returned: 0

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Meta

• What version of Rust GCC were you using, git sha 95dcbb2
• gccrs (Compiler-Explorer-Build-gcc-dba8bc5bf8247161b6eff4f738b6479382f770f2-binutils-2.40) 13.0.1 20230417 (experimental)

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[CohenArthur]

This ICE comes from the match statement having no match arms. This is a separate issue.

A simple test case for E601 could be the following:

fn foo() {}

// no main function

if the crate-type is bin, this should indeed produce an error. Can you open a separate issue for the empty match arm ICE, and change the testcase in this issue?