[INFO] updating cached repository https://github.com/Hand-of-Cthulhu/rust_offbrand_synergy
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 453fbdef00b20e642bc246a20b17669670352d91
[INFO] checking Hand-of-Cthulhu/rust_offbrand_synergy against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHand-of-Cthulhu%2Frust_offbrand_synergy" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hand-of-Cthulhu/rust_offbrand_synergy on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Hand-of-Cthulhu/rust_offbrand_synergy
[INFO] finished tweaking git repo https://github.com/Hand-of-Cthulhu/rust_offbrand_synergy
[INFO] tweaked toml for git repo https://github.com/Hand-of-Cthulhu/rust_offbrand_synergy written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Hand-of-Cthulhu/rust_offbrand_synergy already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 401f5881b7c694952b298a67942a3f8c4d80aa9869e64b38950776abbcf9573f
[INFO] running `"docker" "start" "-a" "401f5881b7c694952b298a67942a3f8c4d80aa9869e64b38950776abbcf9573f"`
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]    Compiling libxdo-sys v0.11.0
[INFO] [stderr]     Checking urlencoding v1.0.0
[INFO] [stderr]    Compiling x11 v2.18.0
[INFO] [stderr]    Compiling enigo v0.0.12 (https://github.com/enigo-rs/enigo.git#9b4bb18b)
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling webview-sys v0.1.0
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling aho-corasick v0.6.5
[INFO] [stderr]    Compiling regex-syntax v0.6.1
[INFO] [stderr]    Compiling base64 v0.9.2
[INFO] [stderr]     Checking web-view v0.2.1
[INFO] [stderr]    Compiling inline_assets v0.2.1
[INFO] [stderr]    Compiling offbrand_synergy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `offbrand_synergy v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/offbrand_synergy-6bf487c63b2ef9a4/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'File write failed: Os { code: 30, kind: Other, message: "Read-only file system" }', build.rs:16:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x561efe1c8b44 - backtrace::backtrace::libunwind::trace::hda902e3a4eb9d449
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x561efe1c8b44 - backtrace::backtrace::trace_unsynchronized::h06df0062bb63b7e2
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x561efe1c8b44 - std::sys_common::backtrace::_print_fmt::ha5249daf78f399e8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x561efe1c8b44 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h68243ef2eafa8843
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x561efe1e7f7c - core::fmt::write::h8b50d07b82ae3922
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x561efe1c6b13 - std::io::Write::write_fmt::h9a5b9a212b705549
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x561efe1cb115 - std::sys_common::backtrace::_print::hcd11fe8eb9e7335d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x561efe1cb115 - std::sys_common::backtrace::print::h475286256f91474c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x561efe1cb115 - std::panicking::default_hook::{{closure}}::h2a45e9d6ef27161b
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x561efe1cae52 - std::panicking::default_hook::h76adec688b27abdd
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x561efe1cb772 - std::panicking::rust_panic_with_hook::h121f4f2c52efbcbf
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x561efe1cb35b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:419
[INFO] [stderr]   12:     0x561efe1e7361 - core::panicking::panic_fmt::hee64f597d93665b6
[INFO] [stderr]                                at src/libcore/panicking.rs:111
[INFO] [stderr]   13:     0x561efe1e7183 - core::option::expect_none_failed::h90fed74f6e49bf90
[INFO] [stderr]                                at src/libcore/option.rs:1268
[INFO] [stderr]   14:     0x561efe0090df - core::result::Result<T,E>::expect::h136cd864e09136d0
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libcore/result.rs:963
[INFO] [stderr]   15:     0x561efe00bb0a - build_script_build::main::h21cc4f431df4d5cb
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:16
[INFO] [stderr]   16:     0x561efe01275b - std::rt::lang_start::{{closure}}::h1ee7287a9039105c
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x561efe1cbbb8 - std::rt::lang_start_internal::{{closure}}::h15b56bd7f81214ad
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x561efe1cbbb8 - std::panicking::try::do_call::hbe8467da291bc822
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   19:     0x561efe1cbbb8 - std::panicking::try::hde3b5cbc6989304d
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   20:     0x561efe1cbbb8 - std::panic::catch_unwind::h56844acb323fdd6c
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x561efe1cbbb8 - std::rt::lang_start_internal::hae379591a9420b87
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x561efe012737 - std::rt::lang_start::h948b923d65aacc13
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x561efe00bc5a - main
[INFO] [stderr]   24:     0x7f6266d31b97 - __libc_start_main
[INFO] [stderr]   25:     0x561efdffedca - _start
[INFO] [stderr]   26:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "401f5881b7c694952b298a67942a3f8c4d80aa9869e64b38950776abbcf9573f"`
[INFO] running `"docker" "rm" "-f" "401f5881b7c694952b298a67942a3f8c4d80aa9869e64b38950776abbcf9573f"`
[INFO] [stdout] 401f5881b7c694952b298a67942a3f8c4d80aa9869e64b38950776abbcf9573f
