[INFO] cloning repository https://github.com/samkevich/rust_c_ffi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samkevich/rust_c_ffi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamkevich%2Frust_c_ffi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamkevich%2Frust_c_ffi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3c2c6b1ba4ef692c659e11fbf0ace33f18d3b85
[INFO] building samkevich/rust_c_ffi/d3c2c6b1ba4ef692c659e11fbf0ace33f18d3b85 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%2Fsamkevich%2Frust_c_ffi" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samkevich/rust_c_ffi 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/samkevich/rust_c_ffi
[INFO] finished tweaking git repo https://github.com/samkevich/rust_c_ffi
[INFO] tweaked toml for git repo https://github.com/samkevich/rust_c_ffi written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/samkevich/rust_c_ffi 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]  Downloading crates ...
[INFO] [stderr]   Downloaded cmake v0.1.48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d01f82db3e6fc84489aaea647fc41b598bed1e18fca878296a4c092faab2ab97
[INFO] running `Command { std: "docker" "start" "-a" "d01f82db3e6fc84489aaea647fc41b598bed1e18fca878296a4c092faab2ab97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d01f82db3e6fc84489aaea647fc41b598bed1e18fca878296a4c092faab2ab97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d01f82db3e6fc84489aaea647fc41b598bed1e18fca878296a4c092faab2ab97", kill_on_drop: false }`
[INFO] [stdout] d01f82db3e6fc84489aaea647fc41b598bed1e18fca878296a4c092faab2ab97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 911c50c20e9ff79b534126e9ce771939d6e94e16593c83f9b37c09f1ecad2204
[INFO] running `Command { std: "docker" "start" "-a" "911c50c20e9ff79b534126e9ce771939d6e94e16593c83f9b37c09f1ecad2204", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling ffi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `ffi v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/ffi-62b4d694c362cc48/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=libvec/vec.h
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at build.rs:23:10:
[INFO] [stderr]   Couldn't write bindings!: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5df5ff476dfa - std::backtrace_rs::backtrace::libunwind::trace::h03d03be113421afc
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]      1:     0x5df5ff476dfa - std::backtrace_rs::backtrace::trace_unsynchronized::h2e7fbcd6665cc8d2
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5df5ff476dfa - std::sys::backtrace::_print_fmt::h720ceb660845092e
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5df5ff476dfa - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h14a5ea82748e51db
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5df5ff4a0643 - core::fmt::rt::Argument::fmt::hb123d25d7a6c0099
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/core/src/fmt/rt.rs:177:76
[INFO] [stderr]      5:     0x5df5ff4a0643 - core::fmt::write::h1f5d4cac72759b92
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/core/src/fmt/mod.rs:1437:21
[INFO] [stderr]      6:     0x5df5ff4735c3 - std::io::Write::write_fmt::hd77689551d7e0db4
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/io/mod.rs:1887:15
[INFO] [stderr]      7:     0x5df5ff476c42 - std::sys::backtrace::BacktraceLock::print::h5523db2e94994c49
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      8:     0x5df5ff477e3d - std::panicking::default_hook::{{closure}}::h5eea9ea15ac78b20
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/panicking.rs:284:22
[INFO] [stderr]      9:     0x5df5ff477c82 - std::panicking::default_hook::h9d26c32202d6f689
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/panicking.rs:311:9
[INFO] [stderr]     10:     0x5df5ff478587 - std::panicking::rust_panic_with_hook::he9d3ca25c928edc3
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/panicking.rs:817:13
[INFO] [stderr]     11:     0x5df5ff47830a - std::panicking::begin_panic_handler::{{closure}}::h8c0cb0d933cb59f1
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/panicking.rs:690:13
[INFO] [stderr]     12:     0x5df5ff4772c9 - std::sys::backtrace::__rust_end_short_backtrace::h4c2f8c4fb123f0c5
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     13:     0x5df5ff477f9d - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/panicking.rs:681:5
[INFO] [stderr]     14:     0x5df5ff49e900 - core::panicking::panic_fmt::hcf90950f6fcf87bc
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/core/src/panicking.rs:75:14
[INFO] [stderr]     15:     0x5df5ff49ed76 - core::result::unwrap_failed::h6839134d0a1e8b2a
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/core/src/result.rs:1699:5
[INFO] [stderr]     16:     0x5df5ff24f773 - core::result::Result<T,E>::expect::hc8e706e2fc0c9a5c
[INFO] [stderr]     17:     0x5df5ff0d3539 - build_script_build::main::hc2a77c228e0d062e
[INFO] [stderr]     18:     0x5df5ff0d12f3 - core::ops::function::FnOnce::call_once::h4b85031fa85c351a
[INFO] [stderr]     19:     0x5df5ff0d1226 - std::sys::backtrace::__rust_begin_short_backtrace::hcc966ef112d3bdd8
[INFO] [stderr]     20:     0x5df5ff0d11a9 - std::rt::lang_start::{{closure}}::h2215dc938730c597
[INFO] [stderr]     21:     0x5df5ff46eb57 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hf08fb67e9418333f
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     22:     0x5df5ff46eb57 - std::panicking::try::do_call::h8df3b748bac18aae
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/panicking.rs:573:40
[INFO] [stderr]     23:     0x5df5ff46eb57 - std::panicking::try::h9ecf18fe7012c636
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/panicking.rs:536:19
[INFO] [stderr]     24:     0x5df5ff46eb57 - std::panic::catch_unwind::h9f95aef6e1ba0a11
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/panic.rs:358:14
[INFO] [stderr]     25:     0x5df5ff46eb57 - std::rt::lang_start_internal::{{closure}}::h5d469f75a5a1ee00
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/rt.rs:174:48
[INFO] [stderr]     26:     0x5df5ff46eb57 - std::panicking::try::do_call::he58ac8839da95dde
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/panicking.rs:573:40
[INFO] [stderr]     27:     0x5df5ff46eb57 - std::panicking::try::h91f7f8bff400e6d2
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/panicking.rs:536:19
[INFO] [stderr]     28:     0x5df5ff46eb57 - std::panic::catch_unwind::h14d5f90943d607f6
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/panic.rs:358:14
[INFO] [stderr]     29:     0x5df5ff46eb57 - std::rt::lang_start_internal::h35c0458ae72f8d99
[INFO] [stderr]                                  at /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/rt.rs:174:20
[INFO] [stderr]     30:     0x5df5ff0d1187 - std::rt::lang_start::h0b3e05ac667cc871
[INFO] [stderr]     31:     0x5df5ff0d3735 - main
[INFO] [stderr]     32:     0x7adf54ecbd90 - <unknown>
[INFO] [stderr]     33:     0x7adf54ecbe40 - __libc_start_main
[INFO] [stderr]     34:     0x5df5ff0d0ad5 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "911c50c20e9ff79b534126e9ce771939d6e94e16593c83f9b37c09f1ecad2204", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "911c50c20e9ff79b534126e9ce771939d6e94e16593c83f9b37c09f1ecad2204", kill_on_drop: false }`
[INFO] [stdout] 911c50c20e9ff79b534126e9ce771939d6e94e16593c83f9b37c09f1ecad2204