[INFO] cloning repository https://github.com/Sparkmasterflex/tableflip
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sparkmasterflex/tableflip" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSparkmasterflex%2Ftableflip", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSparkmasterflex%2Ftableflip'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fad391ccf17810fd7ee16b4e46b892eb9d683c15
[INFO] checking Sparkmasterflex/tableflip against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSparkmasterflex%2Ftableflip" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sparkmasterflex/tableflip on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Sparkmasterflex/tableflip
[INFO] finished tweaking git repo https://github.com/Sparkmasterflex/tableflip
[INFO] tweaked toml for git repo https://github.com/Sparkmasterflex/tableflip written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Sparkmasterflex/tableflip already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 324fae9baa538b2becd74de3ba4c4a9b328e1fae41713355fb0d1905dbf769ea
[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" "324fae9baa538b2becd74de3ba4c4a9b328e1fae41713355fb0d1905dbf769ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "324fae9baa538b2becd74de3ba4c4a9b328e1fae41713355fb0d1905dbf769ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "324fae9baa538b2becd74de3ba4c4a9b328e1fae41713355fb0d1905dbf769ea", kill_on_drop: false }`
[INFO] [stdout] 324fae9baa538b2becd74de3ba4c4a9b328e1fae41713355fb0d1905dbf769ea
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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] dda82f4d2d05d12334d8fc51eb1f80cb4a686653cc46fa46d123c33e7ad8909b
[INFO] running `Command { std: "docker" "start" "-a" "dda82f4d2d05d12334d8fc51eb1f80cb4a686653cc46fa46d123c33e7ad8909b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling xcb v0.8.2
[INFO] [stderr] error: failed to run custom build command for `xcb v0.8.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/xcb-d20f8644dd717acf/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   error occured in handler:  ('event:   ', ('xcb', 'Sync', 'AlarmNotify'))
[INFO] [stderr]   Traceback (most recent call last):
[INFO] [stderr]     File "/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/rs_client.py", line 2448, in <module>
[INFO] [stderr]       module.generate()
[INFO] [stderr]     File "/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/xcbgen/state.py", line 108, in generate
[INFO] [stderr]       self.close()
[INFO] [stderr]     File "/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/rs_client.py", line 296, in rs_close
[INFO] [stderr]       _f.writeout(os.path.join(module.rs_srcdir, "ffi", "%s.rs" % _module_name(_ns.ext_name)))
[INFO] [stderr]     File "/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/rs_client.py", line 114, in writeout
[INFO] [stderr]       with open(path, 'w') as f:
[INFO] [stderr]   OSError: [Errno 30] Read-only file system: '/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/src/ffi/sync.rs'
[INFO] [stderr]   thread 'main' panicked at 'processing of /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/xml/sync.xml returned non-zero (1)', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/build.rs:75:17
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55de7eb94740 - std::backtrace_rs::backtrace::libunwind::trace::hec7eaac9435d3512
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55de7eb94740 - std::backtrace_rs::backtrace::trace_unsynchronized::h42791b8fa12b7daa
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55de7eb94740 - std::sys_common::backtrace::_print_fmt::h3da3ebe04fb665a8
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55de7eb94740 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he40bcdde3c4491cd
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55de7ebb236f - core::fmt::write::h2c729149c08098ab
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/core/src/fmt/mod.rs:1094:17
[INFO] [stderr]      5:     0x55de7eb92495 - std::io::Write::write_fmt::h28e0f2f58b8d7b7e
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/io/mod.rs:1578:15
[INFO] [stderr]      6:     0x55de7eb9641b - std::sys_common::backtrace::_print::h7f0223b1e3d898fc
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55de7eb9641b - std::sys_common::backtrace::print::h58edd634a14c2d4c
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55de7eb9641b - std::panicking::default_hook::{{closure}}::h71657a7591430164
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55de7eb95efd - std::panicking::default_hook::hcdf4eb5db072c85b
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55de7eb969cd - std::panicking::rust_panic_with_hook::hfb91e961ffb5b8e0
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x55de7eb965c7 - std::panicking::begin_panic_handler::{{closure}}::h984d540e84311150
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x55de7eb94bdc - std::sys_common::backtrace::__rust_end_short_backtrace::h32354258ff2aecd1
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55de7eb96529 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x55de7eb769bb - std::panicking::begin_panic_fmt::ha0ce415375ca426f
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/panicking.rs:435:5
[INFO] [stderr]     15:     0x55de7eb7d4f4 - build_script_build::main::{{closure}}::h7c6ab66aa9e04bd6
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/build.rs:75:17
[INFO] [stderr]     16:     0x55de7eb7c085 - build_script_build::visit_xml::haea15a5273b4396d
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/build.rs:20:44
[INFO] [stderr]     17:     0x55de7eb7c863 - build_script_build::main::h2e982caae20196cb
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xcb-0.8.2/build.rs:56:5
[INFO] [stderr]     18:     0x55de7eb7a25b - core::ops::function::FnOnce::call_once::hf27a131a41af4062
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x55de7eb7b12e - std::sys_common::backtrace::__rust_begin_short_backtrace::h1303edfb77a56b2d
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x55de7eb7f3b1 - std::rt::lang_start::{{closure}}::hf2b2ae28c702d711
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/rt.rs:66:18
[INFO] [stderr]     21:     0x55de7eb96dca - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd5953dadf0bc8f54
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x55de7eb96dca - std::panicking::try::do_call::h23b369f1996fb7d4
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/panicking.rs:379:40
[INFO] [stderr]     23:     0x55de7eb96dca - std::panicking::try::he017ee9ed6bce192
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/panicking.rs:343:19
[INFO] [stderr]     24:     0x55de7eb96dca - std::panic::catch_unwind::hbfb892340a78b30d
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/panic.rs:431:14
[INFO] [stderr]     25:     0x55de7eb96dca - std::rt::lang_start_internal::hce6e4c0ce56abb51
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/rt.rs:51:25
[INFO] [stderr]     26:     0x55de7eb7f390 - std::rt::lang_start::hdfa88dd654a481cc
[INFO] [stderr]                                  at /rustc/4fa76a4a7742bb9c1febe33019f5a9e7e4839a65/library/std/src/rt.rs:65:5
[INFO] [stderr]     27:     0x55de7eb7d5fc - main
[INFO] [stderr]     28:     0x7fcdc5e740b3 - __libc_start_main
[INFO] [stderr]     29:     0x55de7eb776ee - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "dda82f4d2d05d12334d8fc51eb1f80cb4a686653cc46fa46d123c33e7ad8909b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dda82f4d2d05d12334d8fc51eb1f80cb4a686653cc46fa46d123c33e7ad8909b", kill_on_drop: false }`
[INFO] [stdout] dda82f4d2d05d12334d8fc51eb1f80cb4a686653cc46fa46d123c33e7ad8909b