Downloaded quote v1.0.33
  Downloaded bitflags v1.3.2
  Downloaded semver v1.0.18
  Downloaded log v0.4.20
  Downloaded ryu v1.0.15
  Downloaded term v0.6.1
  Downloaded unicode-ident v1.0.12
  Downloaded serde v1.0.188
  Downloaded proc-macro2 v1.0.67
  Downloaded serde_json v1.0.107
  Downloaded syn v2.0.37
  Downloaded garando_syntax v0.1.0
  Downloaded libc v0.2.148
   Compiling proc-macro2 v1.0.67
   Compiling unicode-ident v1.0.12
   Compiling libc v0.2.148
   Compiling quote v1.0.33
   Compiling syn v2.0.37
   Compiling serde v1.0.188
   Compiling dirs-sys v0.3.7
   Compiling cfg-if v0.1.10
   Compiling dirs v2.0.2
   Compiling serde_json v1.0.107
   Compiling semver v1.0.18
   Compiling term v0.6.1
   Compiling itoa v1.0.9
   Compiling unicode-xid v0.2.4
   Compiling ryu v1.0.15
   Compiling bitflags v1.3.2
   Compiling log v0.4.20
   Compiling rustc_version v0.4.0
   Compiling cc v1.0.83
   Compiling serde_derive v1.0.188
   Compiling libc v0.2.147 (/tmp/cirrus-ci-build)
   Compiling garando_pos v0.1.0
   Compiling garando_errors v0.1.0
   Compiling garando_syntax v0.1.0
   Compiling ctest2 v0.4.7
   Compiling libc-test v0.2.147 (/tmp/cirrus-ci-build/libc-test)
error: call to `.clone()` on a reference in this situation does nothing
   --> libc-test/build.rs:645:22
    |
645 |                 if ty.clone().chars().next().unwrap().is_uppercase() {
    |                      ^^^^^^^^ help: remove this redundant call
    |
    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
note: the lint level is defined here
   --> libc-test/build.rs:1:9
    |
1   | #![deny(warnings)]
    |         ^^^^^^^^
    = note: `#[deny(noop_method_call)]` implied by `#[deny(warnings)]`

error: could not compile `libc-test` (build script) due to previous error

Exit status: 101