[INFO] crate r-rust 0.0.11 is already in cache
[INFO] checking r-rust-0.0.11 against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672
[INFO] extracting crate r-rust 0.0.11 into work/builds/worker-6/source
[INFO] validating manifest of crates.io crate r-rust 0.0.11 on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate r-rust 0.0.11
[INFO] finished tweaking crates.io crate r-rust 0.0.11
[INFO] tweaked toml for crates.io crate r-rust 0.0.11 written to work/builds/worker-6/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 64606b8c2854aaac9eb253c7afc6d2876cc3aa49de91c49c8ae2350ae684a8c5
[INFO] running `"docker" "start" "-a" "64606b8c2854aaac9eb253c7afc6d2876cc3aa49de91c49c8ae2350ae684a8c5"`
[INFO] [stderr]    Compiling r-rust v0.0.11 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `r-rust v0.0.11 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/r-rust-8ed705a5e018ab73/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] cargo:rerun-if-env-changed=SYSTEM_CPU_COUNT
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:1165:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55e3cf5dc2f4 - backtrace::backtrace::libunwind::trace::h837858cfeddf7a26
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55e3cf5dc2f4 - backtrace::backtrace::trace_unsynchronized::hf450b231b66758d5
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55e3cf5dc2f4 - std::sys_common::backtrace::_print_fmt::h368e3c833d23dd1d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:76
[INFO] [stderr]    3:     0x55e3cf5dc2f4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h99a560994a9a8770
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:60
[INFO] [stderr]    4:     0x55e3cf5fae2c - core::fmt::write::h331a8aee5b7f3512
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1030
[INFO] [stderr]    5:     0x55e3cf5da0e7 - std::io::Write::write_fmt::hf05660e3e7df1eca
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x55e3cf5de675 - std::sys_common::backtrace::_print::h2a131efc4c0ac3fa
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:64
[INFO] [stderr]    7:     0x55e3cf5de675 - std::sys_common::backtrace::print::h983d88dd719c12ff
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55e3cf5de675 - std::panicking::default_hook::{{closure}}::h663d5da304a5132f
[INFO] [stderr]                                at src/libstd/panicking.rs:196
[INFO] [stderr]    9:     0x55e3cf5de366 - std::panicking::default_hook::hf37841c3986e6801
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x55e3cf5decc5 - std::panicking::rust_panic_with_hook::hb2227d83b88686af
[INFO] [stderr]                                at src/libstd/panicking.rs:473
[INFO] [stderr]   11:     0x55e3cf5de862 - std::panicking::continue_panic_fmt::h8dcb675c0adec47c
[INFO] [stderr]                                at src/libstd/panicking.rs:380
[INFO] [stderr]   12:     0x55e3cf5de756 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:307
[INFO] [stderr]   13:     0x55e3cf5f7e3a - core::panicking::panic_fmt::h34237ab75d721bef
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   14:     0x55e3cf5f7f37 - core::result::unwrap_failed::h73569ff13c30ae81
[INFO] [stderr]                                at src/libcore/result.rs:1165
[INFO] [stderr]   15:     0x55e3cf55c360 - core::result::Result<T,E>::unwrap::h6551fcc01522263f
[INFO] [stderr]                                at /rustc/4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb/src/libcore/result.rs:933
[INFO] [stderr]   16:     0x55e3cf556ed2 - build_script_build::cpu_count::h855c3513473cbb74
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:15
[INFO] [stderr]   17:     0x55e3cf55b38b - build_script_build::main::h42b0ed9f6a277211
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:186
[INFO] [stderr]   18:     0x55e3cf5609d0 - std::rt::lang_start::{{closure}}::h7b8edc2ea447e522
[INFO] [stderr]                                at /rustc/4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb/src/libstd/rt.rs:64
[INFO] [stderr]   19:     0x55e3cf5de743 - std::rt::lang_start_internal::{{closure}}::hcbc0d39047dfb53e
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   20:     0x55e3cf5de743 - std::panicking::try::do_call::h8b5ef32d822a8d8f
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   21:     0x55e3cf5e09ea - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   22:     0x55e3cf5df1bd - std::panicking::try::h9b6fb4e6a40ce0cb
[INFO] [stderr]                                at src/libstd/panicking.rs:271
[INFO] [stderr]   23:     0x55e3cf5df1bd - std::panic::catch_unwind::h2fbf9b8ead8e504a
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   24:     0x55e3cf5df1bd - std::rt::lang_start_internal::hb6581c1f21bf501d
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   25:     0x55e3cf5609a9 - std::rt::lang_start::h21b270ef39a93f7f
[INFO] [stderr]                                at /rustc/4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb/src/libstd/rt.rs:64
[INFO] [stderr]   26:     0x55e3cf55b42a - main
[INFO] [stderr]   27:     0x7fd1b003ab97 - __libc_start_main
[INFO] [stderr]   28:     0x55e3cf556c1a - _start
[INFO] [stderr]   29:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "64606b8c2854aaac9eb253c7afc6d2876cc3aa49de91c49c8ae2350ae684a8c5"`
[INFO] running `"docker" "rm" "-f" "64606b8c2854aaac9eb253c7afc6d2876cc3aa49de91c49c8ae2350ae684a8c5"`
[INFO] [stdout] 64606b8c2854aaac9eb253c7afc6d2876cc3aa49de91c49c8ae2350ae684a8c5