[INFO] fetching crate wasmer-c-api 1.0.0-alpha4...
[INFO] testing wasmer-c-api-1.0.0-alpha4 against 1.47.0 for beta-1.48-1
[INFO] extracting crate wasmer-c-api 1.0.0-alpha4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate wasmer-c-api 1.0.0-alpha4 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-c-api 1.0.0-alpha4
[INFO] finished tweaking crates.io crate wasmer-c-api 1.0.0-alpha4
[INFO] tweaked toml for crates.io crate wasmer-c-api 1.0.0-alpha4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 654a608bf0f40032163886503531435264ad87c18532d5c07062c0b04367fb42
[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" "654a608bf0f40032163886503531435264ad87c18532d5c07062c0b04367fb42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "654a608bf0f40032163886503531435264ad87c18532d5c07062c0b04367fb42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "654a608bf0f40032163886503531435264ad87c18532d5c07062c0b04367fb42", kill_on_drop: false }`
[INFO] [stdout] 654a608bf0f40032163886503531435264ad87c18532d5c07062c0b04367fb42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c3633f9da0a0b683af3790968a3184455d15ae7122745bd9a068c7affd43ca2
[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" "4c3633f9da0a0b683af3790968a3184455d15ae7122745bd9a068c7affd43ca2", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling bindgen v0.52.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.65.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling cbindgen v0.15.0
[INFO] [stderr]    Compiling make-cmd v0.1.0
[INFO] [stderr]    Compiling wasmer-compiler-cranelift v1.0.0-alpha4
[INFO] [stderr]    Compiling abort_on_panic v2.0.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling regalloc v0.0.26
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling tracing v0.1.21
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.65.0
[INFO] [stderr]    Compiling cranelift-bforest v0.65.0
[INFO] [stderr]    Compiling gimli v0.21.0
[INFO] [stderr]    Compiling wasmer-compiler v1.0.0-alpha4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling wasmer-engine v1.0.0-alpha4
[INFO] [stderr]    Compiling wasmer-object v1.0.0-alpha4
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling wasmer v1.0.0-alpha4
[INFO] [stderr]    Compiling wasmer-engine-jit v1.0.0-alpha4
[INFO] [stderr]    Compiling wasmer-engine-native v1.0.0-alpha4
[INFO] [stderr]    Compiling wasmer-engine-object-file v1.0.0-alpha4
[INFO] [stderr] error: could not compile `clang-sys`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name clang_sys /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clang-sys-0.28.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clang_6_0"' --cfg 'feature="gte_clang_3_6"' --cfg 'feature="gte_clang_3_7"' --cfg 'feature="gte_clang_3_8"' --cfg 'feature="gte_clang_3_9"' --cfg 'feature="gte_clang_4_0"' --cfg 'feature="gte_clang_5_0"' --cfg 'feature="gte_clang_6_0"' --cfg 'feature="libloading"' --cfg 'feature="runtime"' -C metadata=752ede123c9aa0bd -C extra-filename=-752ede123c9aa0bd --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern glob=/opt/rustwide/target/debug/deps/libglob-918b5d1fb8a81879.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-0a43f320b0d2a047.rmeta --extern libloading=/opt/rustwide/target/debug/deps/liblibloading-44dd922025e5c3e6.rmeta --cap-lints allow --cap-lints=warn -L native=/opt/rustwide/target/debug/build/libloading-e1e508248d873438/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4c3633f9da0a0b683af3790968a3184455d15ae7122745bd9a068c7affd43ca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c3633f9da0a0b683af3790968a3184455d15ae7122745bd9a068c7affd43ca2", kill_on_drop: false }`
[INFO] [stdout] 4c3633f9da0a0b683af3790968a3184455d15ae7122745bd9a068c7affd43ca2
