[INFO] fetching crate ruby-sys 0.3.0...
[INFO] checking ruby-sys-0.3.0 against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] extracting crate ruby-sys 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ruby-sys 0.3.0 on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ruby-sys 0.3.0
[INFO] finished tweaking crates.io crate ruby-sys 0.3.0
[INFO] tweaked toml for crates.io crate ruby-sys 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80821157531db7b151283761318647933b838b2f4a4fdda2bf3e48ec3b6db0ee
[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" "80821157531db7b151283761318647933b838b2f4a4fdda2bf3e48ec3b6db0ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80821157531db7b151283761318647933b838b2f4a4fdda2bf3e48ec3b6db0ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80821157531db7b151283761318647933b838b2f4a4fdda2bf3e48ec3b6db0ee", kill_on_drop: false }`
[INFO] [stdout] 80821157531db7b151283761318647933b838b2f4a4fdda2bf3e48ec3b6db0ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6603bf2e0d76c1f223d3b398e3d5baf5727ab2e215802a7a9abb68ec675fc07b
[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" "6603bf2e0d76c1f223d3b398e3d5baf5727ab2e215802a7a9abb68ec675fc07b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling ruby-sys v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to a foreign function or static
[INFO] [stdout]   --> src/value.rs:46:1
[INFO] [stdout]    |
[INFO] [stdout] 46 |   #[link_name = "ruby_value_type"]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 47 |   #[repr(C)]
[INFO] [stdout] 48 | / pub enum ValueType {
[INFO] [stdout] 49 | |     None = 0x00,
[INFO] [stdout] 50 | |     Object = 0x01,
[INFO] [stdout] 51 | |     Class = 0x02,
[INFO] [stdout] ...  |
[INFO] [stdout] 74 | |     Mask = 0x1f,
[INFO] [stdout] 75 | | }
[INFO] [stdout]    | |_- not a foreign function or static
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to a foreign function or static
[INFO] [stdout]   --> src/value.rs:46:1
[INFO] [stdout]    |
[INFO] [stdout] 46 |   #[link_name = "ruby_value_type"]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 47 |   #[repr(C)]
[INFO] [stdout] 48 | / pub enum ValueType {
[INFO] [stdout] 49 | |     None = 0x00,
[INFO] [stdout] 50 | |     Object = 0x01,
[INFO] [stdout] 51 | |     Class = 0x02,
[INFO] [stdout] ...  |
[INFO] [stdout] 74 | |     Mask = 0x1f,
[INFO] [stdout] 75 | | }
[INFO] [stdout]    | |_- not a foreign function or static
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.73s
[INFO] running `Command { std: "docker" "inspect" "6603bf2e0d76c1f223d3b398e3d5baf5727ab2e215802a7a9abb68ec675fc07b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6603bf2e0d76c1f223d3b398e3d5baf5727ab2e215802a7a9abb68ec675fc07b", kill_on_drop: false }`
[INFO] [stdout] 6603bf2e0d76c1f223d3b398e3d5baf5727ab2e215802a7a9abb68ec675fc07b