[INFO] fetching crate futuresdr 0.0.37...
[INFO] building futuresdr-0.0.37 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate futuresdr 0.0.37 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate futuresdr 0.0.37 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate futuresdr 0.0.37
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate futuresdr 0.0.37
[INFO] tweaked toml for crates.io crate futuresdr 0.0.37 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate futuresdr 0.0.37 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `clang-sys`.
[INFO] [stderr]     ... required by package `bindgen v0.68.1`
[INFO] [stderr]     ... which satisfies dependency `bindgen = "^0.68"` (locked to 0.68.1) of package `coreaudio-sys v0.2.13`
[INFO] [stderr]     ... which satisfies dependency `coreaudio-sys = "^0.2"` (locked to 0.2.13) of package `coreaudio-rs v0.11.3`
[INFO] [stderr]     ... which satisfies dependency `coreaudio-rs = "^0.11"` (locked to 0.11.3) of package `cpal v0.15.2`
[INFO] [stderr]     ... which satisfies dependency `cpal = "^0.15.2"` (locked to 0.15.2) of package `futuresdr v0.0.37 (/workspace/builds/worker-6-tc1/source)`
[INFO] [stderr] versions that meet the requirements `^1` (locked to 1.6.1) are: 1.6.1
[INFO] [stderr] 
[INFO] [stderr] the package `clang-sys` links to the native library `clang`, but it conflicts with a previous package which links to `clang` as well:
[INFO] [stderr] package `clang-sys v0.21.2`
[INFO] [stderr]     ... which satisfies dependency `clang-sys = "^0.21.0"` (locked to 0.21.2) of package `bindgen v0.32.3`
[INFO] [stderr]     ... which satisfies dependency `bindgen = "^0.32.3"` (locked to 0.32.3) of package `lttng-ust-generate v0.1.1`
[INFO] [stderr]     ... which satisfies dependency `lttng-ust-generate = "^0.1.1"` (locked to 0.1.1) of package `futuresdr v0.0.37 (/workspace/builds/worker-6-tc1/source)`
[INFO] [stderr] Only one package in the dependency graph may specify the same links value. This helps ensure that only one copy of a native library is linked in the final binary. Try to adjust your dependencies so that only one package uses the `links = "clang"` value. For more information, see https://doc.rust-lang.org/cargo/reference/resolver.html#links.
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `clang-sys` which could resolve this conflict


ExecutionFailed(ExitStatus(unix_wait_status(25856)))