[INFO] updating cached repository pavelovcharov/readrust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/pavelovcharov/readrust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/pavelovcharov/readrust" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/pavelovcharov/readrust"` [INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/pavelovcharov/readrust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/pavelovcharov/readrust" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/pavelovcharov/readrust"` [INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/pavelovcharov/readrust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 127b0639bfdb617443d9a6a0b9f0390c819230d8 [INFO] sha for GitHub repo pavelovcharov/readrust: 127b0639bfdb617443d9a6a0b9f0390c819230d8 [INFO] validating manifest of pavelovcharov/readrust on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of pavelovcharov/readrust on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing pavelovcharov/readrust [INFO] finished frobbing pavelovcharov/readrust [INFO] frobbed toml for pavelovcharov/readrust written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/pavelovcharov/readrust/Cargo.toml [INFO] started frobbing pavelovcharov/readrust [INFO] finished frobbing pavelovcharov/readrust [INFO] frobbed toml for pavelovcharov/readrust written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/pavelovcharov/readrust/Cargo.toml [INFO] crate pavelovcharov/readrust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking pavelovcharov/readrust against try#8ec8125bea94852768b56958f05da47666c21ab0 for pr-62133 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-1/try#8ec8125bea94852768b56958f05da47666c21ab0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/pavelovcharov/readrust:/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" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 23159cb03a366bcb63a5ccb5cf82ee001f44656013ecdc26fb88ea43031342b2 [INFO] running `"docker" "start" "-a" "23159cb03a366bcb63a5ccb5cf82ee001f44656013ecdc26fb88ea43031342b2"` [INFO] [stderr] Checking csv v0.15.0 [INFO] [stderr] Checking tokio-tls v0.1.4 [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-361ebf07e3d4f158/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: 0x55bdbbb33e6b - backtrace::backtrace::libunwind::trace::h65f453dfe0027df1 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55bdbbb33e6b - backtrace::backtrace::trace_unsynchronized::hcf757005c6accfed [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55bdbbb33e6b - std::sys_common::backtrace::_print::h3230a9d2592a2eba [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55bdbbb33e6b - std::sys_common::backtrace::print::h19f579688627ee7e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55bdbbb33e6b - std::panicking::default_hook::{{closure}}::h472b43365b331815 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x55bdbbb33b47 - std::panicking::default_hook::h0857821e5ff5a369 [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x55bdbbb34530 - std::panicking::rust_panic_with_hook::ha9d31dc2aa8d852d [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x55bdbbb340b2 - std::panicking::continue_panic_fmt::hf0afac1d5f249c91 [INFO] [stderr] at src/libstd/panicking.rs:382 [INFO] [stderr] 8: 0x55bdbbb33f96 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:309 [INFO] [stderr] 9: 0x55bdbbb48c9d - core::panicking::panic_fmt::h0c0cb0551736f849 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55bdbbb24458 - core::result::unwrap_failed::hefb3cc89bff605e5 [INFO] [stderr] at /rustc/8ec8125bea94852768b56958f05da47666c21ab0/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x55bdbbaf5ffc - core::result::Result::unwrap::h6791e4a1dae36b4d [INFO] [stderr] at /rustc/8ec8125bea94852768b56958f05da47666c21ab0/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x55bdbbafef15 - build_script_gen_mime_types::main::h94e239f05ccc4e26 [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: 0x55bdbbb1d890 - std::rt::lang_start::{{closure}}::h26cec58bf6816640 [INFO] [stderr] at /rustc/8ec8125bea94852768b56958f05da47666c21ab0/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55bdbbb33f83 - std::rt::lang_start_internal::{{closure}}::h358a76ea39d8997f [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55bdbbb33f83 - std::panicking::try::do_call::h1fdcc0a978075552 [INFO] [stderr] at src/libstd/panicking.rs:294 [INFO] [stderr] 16: 0x55bdbbb35eca - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x55bdbbb34a3d - std::panicking::try::hd48ddd0547e22f90 [INFO] [stderr] at src/libstd/panicking.rs:273 [INFO] [stderr] 18: 0x55bdbbb34a3d - std::panic::catch_unwind::heb66ca2bf3960f9b [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x55bdbbb34a3d - std::rt::lang_start_internal::h7208f2146229fed7 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55bdbbb1d869 - std::rt::lang_start::hb52810db1f8e7360 [INFO] [stderr] at /rustc/8ec8125bea94852768b56958f05da47666c21ab0/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55bdbbb0054a - main [INFO] [stderr] 22: 0x7ffa189792e1 - __libc_start_main [INFO] [stderr] 23: 0x55bdbbad35ba - _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" "23159cb03a366bcb63a5ccb5cf82ee001f44656013ecdc26fb88ea43031342b2"` [INFO] running `"docker" "rm" "-f" "23159cb03a366bcb63a5ccb5cf82ee001f44656013ecdc26fb88ea43031342b2"` [INFO] [stdout] 23159cb03a366bcb63a5ccb5cf82ee001f44656013ecdc26fb88ea43031342b2