[INFO] cloning repository https://github.com/shirakaba/clang_metagen_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shirakaba/clang_metagen_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshirakaba%2Fclang_metagen_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshirakaba%2Fclang_metagen_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df59ac3facf46bd1d6568eb38265ce72a604f12b
[INFO] building shirakaba/clang_metagen_rs against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshirakaba%2Fclang_metagen_rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shirakaba/clang_metagen_rs 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] started tweaking git repo https://github.com/shirakaba/clang_metagen_rs
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/shirakaba/clang_metagen_rs
[INFO] tweaked toml for git repo https://github.com/shirakaba/clang_metagen_rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/shirakaba/clang_metagen_rs 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clang v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f33f9fb709979a75a0d1efb4434d13cd3c2980a54222931140f0348b70e4466
[INFO] running `Command { std: "docker" "start" "-a" "4f33f9fb709979a75a0d1efb4434d13cd3c2980a54222931140f0348b70e4466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f33f9fb709979a75a0d1efb4434d13cd3c2980a54222931140f0348b70e4466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f33f9fb709979a75a0d1efb4434d13cd3c2980a54222931140f0348b70e4466", kill_on_drop: false }`
[INFO] [stdout] 4f33f9fb709979a75a0d1efb4434d13cd3c2980a54222931140f0348b70e4466
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15f50f142ff148002706d49bca62d95b80af02c4a0055c9a7199e553269506a7
[INFO] running `Command { std: "docker" "start" "-a" "15f50f142ff148002706d49bca62d95b80af02c4a0055c9a7199e553269506a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling clang-sys v1.4.0
[INFO] [stderr]    Compiling clang v2.0.0
[INFO] [stderr]    Compiling clang_metagen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `Command { std: "docker" "inspect" "15f50f142ff148002706d49bca62d95b80af02c4a0055c9a7199e553269506a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f50f142ff148002706d49bca62d95b80af02c4a0055c9a7199e553269506a7", kill_on_drop: false }`
[INFO] [stdout] 15f50f142ff148002706d49bca62d95b80af02c4a0055c9a7199e553269506a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c01fbf84f6faa8bddb8c5d7493d36e7370ac15abf157ec621012483c434963a
[INFO] running `Command { std: "docker" "start" "-a" "9c01fbf84f6faa8bddb8c5d7493d36e7370ac15abf157ec621012483c434963a", kill_on_drop: false }`
[INFO] [stderr]    Compiling clang_metagen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition: `assert_location_eq`
[INFO] [stdout]   --> tests/tests.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 | macro_rules! assert_location_eq {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_6_0`
[INFO] [stdout]    --> tests/tests.rs:142:15
[INFO] [stdout]     |
[INFO] [stdout] 142 |         #[cfg(feature="clang_6_0")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_6_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_6_0`
[INFO] [stdout]    --> tests/tests.rs:148:19
[INFO] [stdout]     |
[INFO] [stdout] 148 |         #[cfg(not(feature="clang_6_0"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_6_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_6_0`
[INFO] [stdout]    --> tests/tests.rs:160:15
[INFO] [stdout]     |
[INFO] [stdout] 160 |         #[cfg(feature="clang_6_0")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_6_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_6_0`
[INFO] [stdout]    --> tests/tests.rs:167:19
[INFO] [stdout]     |
[INFO] [stdout] 167 |         #[cfg(not(feature="clang_6_0"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_6_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_5_0`
[INFO] [stdout]    --> tests/tests.rs:174:15
[INFO] [stdout]     |
[INFO] [stdout] 174 |         #[cfg(feature="clang_5_0")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_5_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_5_0`
[INFO] [stdout]    --> tests/tests.rs:181:19
[INFO] [stdout]     |
[INFO] [stdout] 181 |         #[cfg(not(feature="clang_5_0"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_5_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_4_0`
[INFO] [stdout]    --> tests/tests.rs:228:15
[INFO] [stdout]     |
[INFO] [stdout] 228 |         #[cfg(feature="clang_4_0")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_4_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_9`
[INFO] [stdout]    --> tests/tests.rs:240:19
[INFO] [stdout]     |
[INFO] [stdout] 240 |         #[cfg(all(feature="clang_3_9", not(feature="clang_4_0")))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_9` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_4_0`
[INFO] [stdout]    --> tests/tests.rs:240:44
[INFO] [stdout]     |
[INFO] [stdout] 240 |         #[cfg(all(feature="clang_3_9", not(feature="clang_4_0")))]
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_4_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_9`
[INFO] [stdout]    --> tests/tests.rs:252:19
[INFO] [stdout]     |
[INFO] [stdout] 252 |         #[cfg(not(feature="clang_3_9"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_9` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_7`
[INFO] [stdout]    --> tests/tests.rs:319:15
[INFO] [stdout]     |
[INFO] [stdout] 319 |         #[cfg(feature="clang_3_7")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_7` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_7`
[INFO] [stdout]    --> tests/tests.rs:328:19
[INFO] [stdout]     |
[INFO] [stdout] 328 |         #[cfg(not(feature="clang_3_7"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_7` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_5_0`
[INFO] [stdout]    --> tests/tests.rs:410:15
[INFO] [stdout]     |
[INFO] [stdout] 410 |         #[cfg(feature="clang_5_0")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_5_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_5_0`
[INFO] [stdout]    --> tests/tests.rs:417:19
[INFO] [stdout]     |
[INFO] [stdout] 417 |         #[cfg(not(feature="clang_5_0"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_5_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_6`
[INFO] [stdout]    --> tests/tests.rs:482:15
[INFO] [stdout]     |
[INFO] [stdout] 482 |         #[cfg(feature="clang_3_6")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_6` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_6`
[INFO] [stdout]    --> tests/tests.rs:491:19
[INFO] [stdout]     |
[INFO] [stdout] 491 |         #[cfg(not(feature="clang_3_6"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_6` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_6`
[INFO] [stdout]    --> tests/tests.rs:555:15
[INFO] [stdout]     |
[INFO] [stdout] 555 |         #[cfg(feature="clang_3_6")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_6` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_6`
[INFO] [stdout]    --> tests/tests.rs:565:19
[INFO] [stdout]     |
[INFO] [stdout] 565 |         #[cfg(not(feature="clang_3_6"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_6` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_8`
[INFO] [stdout]    --> tests/tests.rs:602:15
[INFO] [stdout]     |
[INFO] [stdout] 602 |         #[cfg(feature="clang_3_8")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_8` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_8`
[INFO] [stdout]    --> tests/tests.rs:608:19
[INFO] [stdout]     |
[INFO] [stdout] 608 |         #[cfg(not(feature="clang_3_8"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_8` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_9`
[INFO] [stdout]    --> tests/tests.rs:623:15
[INFO] [stdout]     |
[INFO] [stdout] 623 |         #[cfg(feature="clang_3_9")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_9` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_9`
[INFO] [stdout]    --> tests/tests.rs:629:19
[INFO] [stdout]     |
[INFO] [stdout] 629 |         #[cfg(not(feature="clang_3_9"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_9` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_5_0`
[INFO] [stdout]    --> tests/tests.rs:672:15
[INFO] [stdout]     |
[INFO] [stdout] 672 |         #[cfg(feature="clang_5_0")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_5_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_5_0`
[INFO] [stdout]    --> tests/tests.rs:678:19
[INFO] [stdout]     |
[INFO] [stdout] 678 |         #[cfg(not(feature="clang_5_0"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_5_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_9`
[INFO] [stdout]    --> tests/tests.rs:697:15
[INFO] [stdout]     |
[INFO] [stdout] 697 |         #[cfg(feature="clang_3_9")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_9` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_9`
[INFO] [stdout]    --> tests/tests.rs:715:19
[INFO] [stdout]     |
[INFO] [stdout] 715 |         #[cfg(not(feature="clang_3_9"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_9` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_5_0`
[INFO] [stdout]    --> tests/tests.rs:755:15
[INFO] [stdout]     |
[INFO] [stdout] 755 |         #[cfg(feature="clang_5_0")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_5_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_5_0`
[INFO] [stdout]    --> tests/tests.rs:766:19
[INFO] [stdout]     |
[INFO] [stdout] 766 |         #[cfg(not(feature="clang_5_0"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_5_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_8`
[INFO] [stdout]    --> tests/tests.rs:783:15
[INFO] [stdout]     |
[INFO] [stdout] 783 |         #[cfg(feature="clang_3_8")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_8` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_8`
[INFO] [stdout]    --> tests/tests.rs:789:19
[INFO] [stdout]     |
[INFO] [stdout] 789 |         #[cfg(not(feature="clang_3_8"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_8` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_6_0`
[INFO] [stdout]    --> tests/tests.rs:853:19
[INFO] [stdout]     |
[INFO] [stdout] 853 |         #[cfg(all(feature="clang_6_0", target_os="macos"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_6_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_6_0`
[INFO] [stdout]    --> tests/tests.rs:859:19
[INFO] [stdout]     |
[INFO] [stdout] 859 |         #[cfg(all(feature="clang_6_0", not(target_os="macos")))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_6_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_6_0`
[INFO] [stdout]    --> tests/tests.rs:865:19
[INFO] [stdout]     |
[INFO] [stdout] 865 |         #[cfg(not(feature="clang_6_0"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_6_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_7`
[INFO] [stdout]    --> tests/tests.rs:881:15
[INFO] [stdout]     |
[INFO] [stdout] 881 |         #[cfg(feature="clang_3_7")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_7` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_7`
[INFO] [stdout]    --> tests/tests.rs:887:19
[INFO] [stdout]     |
[INFO] [stdout] 887 |         #[cfg(not(feature="clang_3_7"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_3_7` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_7_0`
[INFO] [stdout]    --> tests/tests.rs:900:15
[INFO] [stdout]     |
[INFO] [stdout] 900 |         #[cfg(feature="clang_7_0")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_7_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_7_0`
[INFO] [stdout]    --> tests/tests.rs:905:19
[INFO] [stdout]     |
[INFO] [stdout] 905 |         #[cfg(not(feature="clang_7_0"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_7_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_7_0`
[INFO] [stdout]    --> tests/tests.rs:920:15
[INFO] [stdout]     |
[INFO] [stdout] 920 |         #[cfg(feature="clang_7_0")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_7_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_7_0`
[INFO] [stdout]    --> tests/tests.rs:953:19
[INFO] [stdout]     |
[INFO] [stdout] 953 |         #[cfg(not(feature="clang_7_0"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_7_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_8_0`
[INFO] [stdout]    --> tests/tests.rs:968:15
[INFO] [stdout]     |
[INFO] [stdout] 968 |         #[cfg(feature="clang_8_0")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_8_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_8_0`
[INFO] [stdout]    --> tests/tests.rs:974:19
[INFO] [stdout]     |
[INFO] [stdout] 974 |         #[cfg(not(feature="clang_8_0"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `clang_8_0` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_9`
[INFO] [stdout]     --> tests/tests.rs:1106:15
[INFO] [stdout]      |
[INFO] [stdout] 1106 |         #[cfg(feature="clang_3_9")]
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]      |
[INFO] [stdout]      = note: no expected values for `feature`
[INFO] [stdout]      = help: consider adding `clang_3_9` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_9`
[INFO] [stdout]     --> tests/tests.rs:1111:19
[INFO] [stdout]      |
[INFO] [stdout] 1111 |         #[cfg(not(feature="clang_3_9"))]
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]      |
[INFO] [stdout]      = note: no expected values for `feature`
[INFO] [stdout]      = help: consider adding `clang_3_9` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_5_0`
[INFO] [stdout]     --> tests/tests.rs:1137:15
[INFO] [stdout]      |
[INFO] [stdout] 1137 |         #[cfg(feature="clang_5_0")]
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]      |
[INFO] [stdout]      = note: no expected values for `feature`
[INFO] [stdout]      = help: consider adding `clang_5_0` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_5_0`
[INFO] [stdout]     --> tests/tests.rs:1144:19
[INFO] [stdout]      |
[INFO] [stdout] 1144 |         #[cfg(not(feature="clang_5_0"))]
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]      |
[INFO] [stdout]      = note: no expected values for `feature`
[INFO] [stdout]      = help: consider adding `clang_5_0` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_7`
[INFO] [stdout]     --> tests/tests.rs:1155:15
[INFO] [stdout]      |
[INFO] [stdout] 1155 |         #[cfg(feature="clang_3_7")]
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]      |
[INFO] [stdout]      = note: no expected values for `feature`
[INFO] [stdout]      = help: consider adding `clang_3_7` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_3_7`
[INFO] [stdout]     --> tests/tests.rs:1160:19
[INFO] [stdout]      |
[INFO] [stdout] 1160 |         #[cfg(not(feature="clang_3_7"))]
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]      |
[INFO] [stdout]      = note: no expected values for `feature`
[INFO] [stdout]      = help: consider adding `clang_3_7` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_5_0`
[INFO] [stdout]     --> tests/tests.rs:1212:15
[INFO] [stdout]      |
[INFO] [stdout] 1212 |         #[cfg(feature="clang_5_0")]
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]      |
[INFO] [stdout]      = note: no expected values for `feature`
[INFO] [stdout]      = help: consider adding `clang_5_0` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_5_0`
[INFO] [stdout]     --> tests/tests.rs:1219:19
[INFO] [stdout]      |
[INFO] [stdout] 1219 |         #[cfg(not(feature="clang_5_0"))]
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]      |
[INFO] [stdout]      = note: no expected values for `feature`
[INFO] [stdout]      = help: consider adding `clang_5_0` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_8_0`
[INFO] [stdout]     --> tests/tests.rs:1278:15
[INFO] [stdout]      |
[INFO] [stdout] 1278 |         #[cfg(feature="clang_8_0")]
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]      |
[INFO] [stdout]      = note: no expected values for `feature`
[INFO] [stdout]      = help: consider adding `clang_8_0` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clang_8_0`
[INFO] [stdout]     --> tests/tests.rs:1290:19
[INFO] [stdout]      |
[INFO] [stdout] 1290 |         #[cfg(not(feature="clang_8_0"))]
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]      |
[INFO] [stdout]      = note: no expected values for `feature`
[INFO] [stdout]      = help: consider adding `clang_8_0` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `with_file` is never used
[INFO] [stdout]   --> tests/tests.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn with_file<'c, F: FnOnce(&Path, File)>(clang: &'c Clang, contents: &str, f: F) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.34s
[INFO] running `Command { std: "docker" "inspect" "9c01fbf84f6faa8bddb8c5d7493d36e7370ac15abf157ec621012483c434963a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c01fbf84f6faa8bddb8c5d7493d36e7370ac15abf157ec621012483c434963a", kill_on_drop: false }`
[INFO] [stdout] 9c01fbf84f6faa8bddb8c5d7493d36e7370ac15abf157ec621012483c434963a