[INFO] fetching crate bindgen 0.54.1...
[INFO] checking bindgen-0.54.1 against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] extracting crate bindgen 0.54.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate bindgen 0.54.1 on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bindgen 0.54.1
[INFO] finished tweaking crates.io crate bindgen 0.54.1
[INFO] tweaked toml for crates.io crate bindgen 0.54.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate bindgen 0.54.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clang-sys v0.29.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 737e6b1711d6b8fc2a4f204772fd70fd157b9a7f8fbf6accd3332b3fc08b0bed
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "737e6b1711d6b8fc2a4f204772fd70fd157b9a7f8fbf6accd3332b3fc08b0bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "737e6b1711d6b8fc2a4f204772fd70fd157b9a7f8fbf6accd3332b3fc08b0bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "737e6b1711d6b8fc2a4f204772fd70fd157b9a7f8fbf6accd3332b3fc08b0bed", kill_on_drop: false }`
[INFO] [stdout] 737e6b1711d6b8fc2a4f204772fd70fd157b9a7f8fbf6accd3332b3fc08b0bed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "-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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 533df81925bb38190d7ce3dfeffbfe93401a294336b50e0121fb318fb3fc00bb
[INFO] running `Command { std: "docker" "start" "-a" "533df81925bb38190d7ce3dfeffbfe93401a294336b50e0121fb318fb3fc00bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]     Checking unicode-xid v0.2.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]    Compiling bindgen v0.54.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking peeking_take_while v0.1.2
[INFO] [stderr]     Checking diff v0.1.11
[INFO] [stderr]    Compiling clang-sys v0.29.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking which v3.0.0
[INFO] [stderr]     Checking rustc-hash v1.0.1
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking quote v1.0.2
[INFO] [stderr]     Checking env_logger v0.7.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking cexpr v0.4.0
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/ir/comp.rs:751:17
[INFO] [stdout]     |
[INFO] [stdout] 751 | /                 mem::replace(
[INFO] [stdout] 752 | |                     self,
[INFO] [stdout] 753 | |                     CompFields::AfterComputingBitfieldUnits {
[INFO] [stdout] 754 | |                         fields,
[INFO] [stdout] 755 | |                         has_bitfield_units,
[INFO] [stdout] 756 | |                     },
[INFO] [stdout] 757 | |                 );
[INFO] [stdout]     | |__________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/ir/comp.rs:760:17
[INFO] [stdout]     |
[INFO] [stdout] 760 |                 mem::replace(self, CompFields::ErrorComputingBitfieldUnits);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/ir/comp.rs:751:17
[INFO] [stdout]     |
[INFO] [stdout] 751 | /                 mem::replace(
[INFO] [stdout] 752 | |                     self,
[INFO] [stdout] 753 | |                     CompFields::AfterComputingBitfieldUnits {
[INFO] [stdout] 754 | |                         fields,
[INFO] [stdout] 755 | |                         has_bitfield_units,
[INFO] [stdout] 756 | |                     },
[INFO] [stdout] 757 | |                 );
[INFO] [stdout]     | |__________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/ir/comp.rs:760:17
[INFO] [stdout]     |
[INFO] [stdout] 760 |                 mem::replace(self, CompFields::ErrorComputingBitfieldUnits);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.77s
[INFO] running `Command { std: "docker" "inspect" "533df81925bb38190d7ce3dfeffbfe93401a294336b50e0121fb318fb3fc00bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "533df81925bb38190d7ce3dfeffbfe93401a294336b50e0121fb318fb3fc00bb", kill_on_drop: false }`
[INFO] [stdout] 533df81925bb38190d7ce3dfeffbfe93401a294336b50e0121fb318fb3fc00bb