[INFO] fetching crate wasmer-c-api 1.0.0-alpha4...
[INFO] testing wasmer-c-api-1.0.0-alpha4 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate wasmer-c-api 1.0.0-alpha4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate wasmer-c-api 1.0.0-alpha4 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasmer-emscripten v1.0.0-alpha4
[INFO] [stderr]   Downloaded wasmer-compiler-llvm v1.0.0-alpha4
[INFO] [stderr]   Downloaded abort_on_panic v2.0.0
[INFO] [stderr]   Downloaded wasmer-compiler-singlepass v1.0.0-alpha4
[INFO] [stderr]   Downloaded libffi v0.9.0
[INFO] [stderr]   Downloaded wasmer-engine-object-file v1.0.0-alpha4
[INFO] [stderr]   Downloaded wasmer-engine-native v1.0.0-alpha4
[INFO] [stderr]   Downloaded wasmer-compiler-cranelift v1.0.0-alpha4
[INFO] [stderr]   Downloaded libffi-sys v0.9.1
[INFO] [stderr]   Downloaded wasmer-engine-jit v1.0.0-alpha4
[INFO] [stderr]   Downloaded cbindgen v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f3f71b0f898e210e3b3da9a400351b9a014edb17fe4959daea3adbfc617d7c8
[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" "6f3f71b0f898e210e3b3da9a400351b9a014edb17fe4959daea3adbfc617d7c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f3f71b0f898e210e3b3da9a400351b9a014edb17fe4959daea3adbfc617d7c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f3f71b0f898e210e3b3da9a400351b9a014edb17fe4959daea3adbfc617d7c8", kill_on_drop: false }`
[INFO] [stdout] 6f3f71b0f898e210e3b3da9a400351b9a014edb17fe4959daea3adbfc617d7c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d8439cf91fa7decc532e0fe3c2b24a2410adc73cb445ee4824b7b07def6d746
[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" "6d8439cf91fa7decc532e0fe3c2b24a2410adc73cb445ee4824b7b07def6d746", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling version_check v0.1.5
[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 shlex v0.1.1
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]    Compiling pin-project-lite v0.1.10
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling inventory v0.1.9
[INFO] [stderr]    Compiling make-cmd v0.1.0
[INFO] [stderr]    Compiling cbindgen v0.15.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[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 libloading v0.6.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]    Compiling wast v25.0.2
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling regalloc v0.0.26
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling wat v1.0.26
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling ctor v0.1.16
[INFO] [stderr]    Compiling inventory-impl v0.1.9
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling typetag-impl v0.1.6
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling libffi-sys v0.9.1
[INFO] [stderr]    Compiling tracing v0.1.21
[INFO] [stderr]    Compiling thiserror v1.0.21
[INFO] [stderr]    Compiling which v4.0.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling enumset_derive v0.5.0
[INFO] [stderr]    Compiling enumset v1.0.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling cranelift-entity v0.65.0
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling erased-serde v0.3.12
[INFO] [stderr]    Compiling generational-arena v0.2.8
[INFO] [stderr]    Compiling object v0.19.0
[INFO] [stderr]    Compiling gimli v0.21.0
[INFO] [stderr]    Compiling wasmer-types v1.0.0-alpha4
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.65.0
[INFO] [stderr]    Compiling cranelift-bforest v0.65.0
[INFO] [stderr]    Compiling typetag v0.1.6
[INFO] [stderr]    Compiling wasmer-vm v1.0.0-alpha4
[INFO] [stderr]    Compiling wasmer-compiler v1.0.0-alpha4
[INFO] [stderr]    Compiling wasmer-engine v1.0.0-alpha4
[INFO] [stderr]    Compiling wasmer-object v1.0.0-alpha4
[INFO] [stderr]    Compiling wasmer v1.0.0-alpha4
[INFO] [stderr]    Compiling wasmer-engine-object-file 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-wasi v1.0.0-alpha4
[INFO] [stderr]    Compiling wasmer-c-api v1.0.0-alpha4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cranelift-codegen v0.65.0
[INFO] [stderr] error: failed to run custom build command for `wasmer-c-api v1.0.0-alpha4 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/wasmer-c-api-d4029fb73b901f59/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Unable to copy the generated C bindings: Os { code: 30, kind: Other, message: "Read-only file system" }', build.rs:120:14
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55ddac371510 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x55ddac371510 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x55ddac371510 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x55ddac371510 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x55ddac397b6c - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stderr]      5:     0x55ddac36e162 - std::io::Write::write_fmt::hac97d5cb5753e2ec
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stderr]      6:     0x55ddac373e2d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x55ddac373e2d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x55ddac373e2d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stderr]      9:     0x55ddac373ad8 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:227
[INFO] [stderr]     10:     0x55ddac374536 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:581
[INFO] [stderr]     11:     0x55ddac3740b9 - std::panicking::begin_panic_handler::{{closure}}::h8b43445b254eeb30
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:484
[INFO] [stderr]     12:     0x55ddac37199c - std::sys_common::backtrace::__rust_end_short_backtrace::hacd691450edfeae0
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x55ddac374079 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:483
[INFO] [stderr]     14:     0x55ddac395a41 - core::panicking::panic_fmt::h5b17d4a0e853d0f5
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/panicking.rs:85
[INFO] [stderr]     15:     0x55ddac395863 - core::option::expect_none_failed::hd08bf36cae411fff
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/option.rs:1234
[INFO] [stderr]     16:     0x55ddabe6c717 - core::result::Result<T,E>::expect::hf628d42ec9ba3bd2
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/result.rs:933
[INFO] [stderr]     17:     0x55ddabe752d7 - build_script_build::build_wasm_c_api_headers::h8e616c6dbb0e9f49
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:119
[INFO] [stderr]     18:     0x55ddabe74a97 - build_script_build::main::hfc4612a21a10b9c1
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:62
[INFO] [stderr]     19:     0x55ddabe68f2b - core::ops::function::FnOnce::call_once::hf8e75844c037ce34
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stderr]     20:     0x55ddabe708be - std::sys_common::backtrace::__rust_begin_short_backtrace::h59407dfd9fca87c6
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     21:     0x55ddabe68df1 - std::rt::lang_start::{{closure}}::h7dd803a76668a675
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/rt.rs:66
[INFO] [stderr]     22:     0x55ddac374a27 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h908982dfc31b926f
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:259
[INFO] [stderr]     23:     0x55ddac374a27 - std::panicking::try::do_call::h92777899503b7584
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stderr]     24:     0x55ddac374a27 - std::panicking::try::h8815656b2b76e792
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stderr]     25:     0x55ddac374a27 - std::panic::catch_unwind::h112ab81228f50b46
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stderr]     26:     0x55ddac374a27 - std::rt::lang_start_internal::h1772a706c7575c24
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/rt.rs:51
[INFO] [stderr]     27:     0x55ddabe68dc7 - std::rt::lang_start::ha23347e3ae2ad00e
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/rt.rs:65
[INFO] [stderr]     28:     0x55ddabe77aca - main
[INFO] [stderr]     29:     0x7ff0e68c50b3 - __libc_start_main
[INFO] [stderr]     30:     0x55ddabe440de - _start
[INFO] [stderr]     31:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6d8439cf91fa7decc532e0fe3c2b24a2410adc73cb445ee4824b7b07def6d746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d8439cf91fa7decc532e0fe3c2b24a2410adc73cb445ee4824b7b07def6d746", kill_on_drop: false }`
[INFO] [stdout] 6d8439cf91fa7decc532e0fe3c2b24a2410adc73cb445ee4824b7b07def6d746
