[INFO] cloning repository https://github.com/flatkvm/flatkvm-paste
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flatkvm/flatkvm-paste" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatkvm%2Fflatkvm-paste", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatkvm%2Fflatkvm-paste'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51dbd6408fb887faa375c775c226bbb55afbafba
[INFO] checking flatkvm/flatkvm-paste against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatkvm%2Fflatkvm-paste" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flatkvm/flatkvm-paste on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/flatkvm/flatkvm-paste
[INFO] finished tweaking git repo https://github.com/flatkvm/flatkvm-paste
[INFO] tweaked toml for git repo https://github.com/flatkvm/flatkvm-paste written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/flatkvm/flatkvm-paste already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/flatkvm/x11-clipboard`
[INFO] [stderr]     Updating git repository `https://github.com/flatkvm/rust-xcb`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bc3b9cbbf17de7b75def81acecc8c5b6736351e050b03648f6cc0ba9b0b5e8c
[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" "8bc3b9cbbf17de7b75def81acecc8c5b6736351e050b03648f6cc0ba9b0b5e8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bc3b9cbbf17de7b75def81acecc8c5b6736351e050b03648f6cc0ba9b0b5e8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bc3b9cbbf17de7b75def81acecc8c5b6736351e050b03648f6cc0ba9b0b5e8c", kill_on_drop: false }`
[INFO] [stdout] 8bc3b9cbbf17de7b75def81acecc8c5b6736351e050b03648f6cc0ba9b0b5e8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34fc12233cdc08b148350092232769ad993a092c6a479a599c5b6e2150ed45da
[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" "34fc12233cdc08b148350092232769ad993a092c6a479a599c5b6e2150ed45da", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling xcb v0.8.2 (https://github.com/flatkvm/rust-xcb#d7cb614a)
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr] error: failed to run custom build command for `xcb v0.8.2 (https://github.com/flatkvm/rust-xcb#d7cb614a)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/xcb-c28e6e724f4d8710/build-script-build` (exit code: 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/git/checkouts/rust-xcb-9e5ec3ffdc1c7df2/d7cb614/rs_client.py", line 2448, in <module>
[INFO] [stderr]       module.generate()
[INFO] [stderr]     File "/opt/rustwide/cargo-home/git/checkouts/rust-xcb-9e5ec3ffdc1c7df2/d7cb614/xcbgen/state.py", line 108, in generate
[INFO] [stderr]       self.close()
[INFO] [stderr]     File "/opt/rustwide/cargo-home/git/checkouts/rust-xcb-9e5ec3ffdc1c7df2/d7cb614/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/git/checkouts/rust-xcb-9e5ec3ffdc1c7df2/d7cb614/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/git/checkouts/rust-xcb-9e5ec3ffdc1c7df2/d7cb614/src/ffi/sync.rs'
[INFO] [stderr]   thread 'main' panicked at 'processing of /opt/rustwide/cargo-home/git/checkouts/rust-xcb-9e5ec3ffdc1c7df2/d7cb614/xml/sync.xml returned non-zero (1)', /opt/rustwide/cargo-home/git/checkouts/rust-xcb-9e5ec3ffdc1c7df2/d7cb614/build.rs:75:17
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55835d03ffc0 - std::backtrace_rs::backtrace::libunwind::trace::h448c56741b6011d3
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5
[INFO] [stderr]      1:     0x55835d03ffc0 - std::backtrace_rs::backtrace::trace_unsynchronized::h2d26397c5720fdbb
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55835d03ffc0 - std::sys_common::backtrace::_print_fmt::h720a2f61f75b9f58
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55835d03ffc0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h8d62bbfda6d5c836
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55835d05d98c - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/core/src/fmt/mod.rs:1078:17
[INFO] [stderr]      5:     0x55835d03d362 - std::io::Write::write_fmt::h16a9fe7680ac245c
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/io/mod.rs:1518:15
[INFO] [stderr]      6:     0x55835d042265 - std::sys_common::backtrace::_print::h9ba51a6db618de7d
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55835d042265 - std::sys_common::backtrace::print::h5f20e41c85e91716
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55835d042265 - std::panicking::default_hook::{{closure}}::h5b7294ca19e8edab
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55835d041f08 - std::panicking::default_hook::hb3948d1f74b6ff4c
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/panicking.rs:227:9
[INFO] [stderr]     10:     0x55835d0429a1 - std::panicking::rust_panic_with_hook::h55d23fef0ad751bc
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/panicking.rs:593:17
[INFO] [stderr]     11:     0x55835d0424e7 - std::panicking::begin_panic_handler::{{closure}}::h56ae74c6dea6e141
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/panicking.rs:499:13
[INFO] [stderr]     12:     0x55835d04045c - std::sys_common::backtrace::__rust_end_short_backtrace::h3c4721f56689fae4
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55835d042449 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/panicking.rs:495:5
[INFO] [stderr]     14:     0x55835d0423fb - std::panicking::begin_panic_fmt::h447a9fe10c3ac155
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/panicking.rs:437:5
[INFO] [stderr]     15:     0x55835d020cfa - build_script_build::main::{{closure}}::hd37370b9970c1400
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/git/checkouts/rust-xcb-9e5ec3ffdc1c7df2/d7cb614/build.rs:75:17
[INFO] [stderr]     16:     0x55835d01f978 - build_script_build::visit_xml::h87f2d4a4de688369
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/git/checkouts/rust-xcb-9e5ec3ffdc1c7df2/d7cb614/build.rs:20:44
[INFO] [stderr]     17:     0x55835d0200ef - build_script_build::main::ha4306c26cf6157d1
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/git/checkouts/rust-xcb-9e5ec3ffdc1c7df2/d7cb614/build.rs:56:5
[INFO] [stderr]     18:     0x55835d025a8b - core::ops::function::FnOnce::call_once::h49af3f6aedb965d1
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x55835d0240be - std::sys_common::backtrace::__rust_begin_short_backtrace::hdb3d333f268c3043
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x55835d027d71 - std::rt::lang_start::{{closure}}::hb4c676dc3f1ebc2b
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/rt.rs:66:18
[INFO] [stderr]     21:     0x55835d042dc7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h3f3ba5d1e0ce8d49
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x55835d042dc7 - std::panicking::try::do_call::hd7a374fc87b951e7
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/panicking.rs:381:40
[INFO] [stderr]     23:     0x55835d042dc7 - std::panicking::try::h068087b173f80a49
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/panicking.rs:345:19
[INFO] [stderr]     24:     0x55835d042dc7 - std::panic::catch_unwind::h1f8259807e825279
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/panic.rs:396:14
[INFO] [stderr]     25:     0x55835d042dc7 - std::rt::lang_start_internal::h8ff82302dd620b52
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/rt.rs:51:25
[INFO] [stderr]     26:     0x55835d027d47 - std::rt::lang_start::h9d981c19370bf9df
[INFO] [stderr]                                  at /rustc/7f5a42b073dc2bee2aa625052eb066ee07072048/library/std/src/rt.rs:65:5
[INFO] [stderr]     27:     0x55835d020dfa - main
[INFO] [stderr]     28:     0x7fc31c1060b3 - __libc_start_main
[INFO] [stderr]     29:     0x55835d01f0ae - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "34fc12233cdc08b148350092232769ad993a092c6a479a599c5b6e2150ed45da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34fc12233cdc08b148350092232769ad993a092c6a479a599c5b6e2150ed45da", kill_on_drop: false }`
[INFO] [stdout] 34fc12233cdc08b148350092232769ad993a092c6a479a599c5b6e2150ed45da