[INFO] updating cached repository fcobackup/fco-backup-fetcher [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/fcobackup/fco-backup-fetcher [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/fcobackup/fco-backup-fetcher" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/fcobackup/fco-backup-fetcher"` [INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/fcobackup/fco-backup-fetcher'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/fcobackup/fco-backup-fetcher" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/fcobackup/fco-backup-fetcher"` [INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/fcobackup/fco-backup-fetcher'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 404d5969525c04eccc8432524bc32421347a2aa0 [INFO] sha for GitHub repo fcobackup/fco-backup-fetcher: 404d5969525c04eccc8432524bc32421347a2aa0 [INFO] validating manifest of fcobackup/fco-backup-fetcher on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of fcobackup/fco-backup-fetcher on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing fcobackup/fco-backup-fetcher [INFO] finished frobbing fcobackup/fco-backup-fetcher [INFO] frobbed toml for fcobackup/fco-backup-fetcher written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/fcobackup/fco-backup-fetcher/Cargo.toml [INFO] started frobbing fcobackup/fco-backup-fetcher [INFO] finished frobbing fcobackup/fco-backup-fetcher [INFO] frobbed toml for fcobackup/fco-backup-fetcher written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/fcobackup/fco-backup-fetcher/Cargo.toml [INFO] crate fcobackup/fco-backup-fetcher already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking fcobackup/fco-backup-fetcher against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-1/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/fcobackup/fco-backup-fetcher:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 3037d66a6f734393ed46676f8293428c58fb0a51ab315ba6a887333e0a52318e [INFO] running `"docker" "start" "-a" "3037d66a6f734393ed46676f8293428c58fb0a51ab315ba6a887333e0a52318e"` [INFO] [stderr] Checking peresil v0.3.0 [INFO] [stderr] Checking rustyline v1.0.0 [INFO] [stderr] Checking env_logger v0.4.3 [INFO] [stderr] Checking stderrlog v0.2.3 [INFO] [stderr] Checking quick-xml v0.10.1 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.3 [INFO] [stderr] error: failed to run custom build command for `mime_guess v2.0.0-alpha.3` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mime_guess-57a154284d79f827/build-script-gen_mime_types` (exit code: 101) [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:999:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x561ecd9efbcb - backtrace::backtrace::libunwind::trace::hc5a758871b6ebf05 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x561ecd9efbcb - backtrace::backtrace::trace_unsynchronized::hdad9729cc53c45f3 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x561ecd9efbcb - std::sys_common::backtrace::_print::hccf66646430a9cbc [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x561ecd9efbcb - std::sys_common::backtrace::print::h6c902507aa1c61bf [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x561ecd9efbcb - std::panicking::default_hook::{{closure}}::hc0c79151a0a4b58f [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x561ecd9ef8a7 - std::panicking::default_hook::hfd408bb664bf319a [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x561ecd9f0290 - std::panicking::rust_panic_with_hook::hb2d4371b6afbe17a [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x561ecd9efe12 - std::panicking::continue_panic_fmt::h6eef1f2d6e3abc2b [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x561ecd9efcf6 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x561ecda049fd - core::panicking::panic_fmt::h9f3781beea83a294 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x561ecd9e2aa8 - core::result::unwrap_failed::h40594f5ce831bae9 [INFO] [stderr] at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x561ecd9b088c - core::result::Result::unwrap::hc69385e178544b5d [INFO] [stderr] at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x561ecd9b39a5 - build_script_gen_mime_types::main::h9e7ee49af2c9f49b [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-2.0.0-alpha.3/src/gen_mime_types.rs:22 [INFO] [stderr] 13: 0x561ecd9da180 - std::rt::lang_start::{{closure}}::h8ab4be3104a30feb [INFO] [stderr] at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x561ecd9efce3 - std::rt::lang_start_internal::{{closure}}::h86569d7197572496 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x561ecd9efce3 - std::panicking::try::do_call::hc05ef3c0bbb0a2c9 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x561ecd9f1c2a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x561ecd9f079d - std::panicking::try::h5f7f6728fc93999f [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x561ecd9f079d - std::panic::catch_unwind::h9120cbd852b844f2 [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x561ecd9f079d - std::rt::lang_start_internal::h20e51e71516fa081 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x561ecd9da159 - std::rt::lang_start::h8285560c31ec0393 [INFO] [stderr] at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x561ecd9b4fda - main [INFO] [stderr] 22: 0x7fed4f6ec2e1 - __libc_start_main [INFO] [stderr] 23: 0x561ecd98f3fa - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "3037d66a6f734393ed46676f8293428c58fb0a51ab315ba6a887333e0a52318e"` [INFO] running `"docker" "rm" "-f" "3037d66a6f734393ed46676f8293428c58fb0a51ab315ba6a887333e0a52318e"` [INFO] [stdout] 3037d66a6f734393ed46676f8293428c58fb0a51ab315ba6a887333e0a52318e