[INFO] updating cached repository 5830ification/rust-simple-ml [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/5830ification/rust-simple-ml [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/5830ification/rust-simple-ml" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/5830ification/rust-simple-ml"` [INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/5830ification/rust-simple-ml'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/5830ification/rust-simple-ml" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/5830ification/rust-simple-ml"` [INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/5830ification/rust-simple-ml'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] a05e04c91a7804be657965e4ca473e7597e7d5ff [INFO] sha for GitHub repo 5830ification/rust-simple-ml: a05e04c91a7804be657965e4ca473e7597e7d5ff [INFO] validating manifest of 5830ification/rust-simple-ml 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 5830ification/rust-simple-ml 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 5830ification/rust-simple-ml [INFO] finished frobbing 5830ification/rust-simple-ml [INFO] frobbed toml for 5830ification/rust-simple-ml written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/5830ification/rust-simple-ml/Cargo.toml [INFO] started frobbing 5830ification/rust-simple-ml [INFO] finished frobbing 5830ification/rust-simple-ml [INFO] frobbed toml for 5830ification/rust-simple-ml written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/5830ification/rust-simple-ml/Cargo.toml [INFO] crate 5830ification/rust-simple-ml 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 5830ification/rust-simple-ml against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-3/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/5830ification/rust-simple-ml:/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] 6dfaf9711dedc526fcff57b6dca94544ba445605cd00600ef48e1167fa1d283e [INFO] running `"docker" "start" "-a" "6dfaf9711dedc526fcff57b6dca94544ba445605cd00600ef48e1167fa1d283e"` [INFO] [stderr] Checking libc v0.2.33 [INFO] [stderr] Compiling openssl v0.9.20 [INFO] [stderr] Checking futures v0.1.16 [INFO] [stderr] Checking lazy_static v0.2.9 [INFO] [stderr] Compiling crc-core v0.1.0 [INFO] [stderr] Compiling typenum v1.9.0 [INFO] [stderr] Checking build_const v0.2.0 [INFO] [stderr] Compiling matrixmultiply v0.1.13 [INFO] [stderr] Checking serde v1.0.16 [INFO] [stderr] Compiling miniz-sys v0.1.10 [INFO] [stderr] Compiling openssl-sys v0.9.20 [INFO] [stderr] Compiling crc v1.5.0 [INFO] [stderr] Checking num-complex v0.1.40 [INFO] [stderr] Checking iovec v0.1.1 [INFO] [stderr] Checking net2 v0.2.31 [INFO] [stderr] Checking rand v0.3.17 [INFO] [stderr] Checking num_cpus v1.7.0 [INFO] [stderr] Checking time v0.1.38 [INFO] [stderr] Checking atty v0.2.3 [INFO] [stderr] Compiling unicase v2.0.0 [INFO] [stderr] Checking bytes v0.4.5 [INFO] [stderr] Checking alga v0.5.2 [INFO] [stderr] Checking mio v0.6.11 [INFO] [stderr] Compiling serde_derive_internals v0.16.0 [INFO] [stderr] Checking clap v2.27.1 [INFO] [stderr] Checking tokio-service v0.1.0 [INFO] [stderr] Checking futures-cpupool v0.1.7 [INFO] [stderr] Checking relay v0.1.0 [INFO] [stderr] Checking uuid v0.5.1 [INFO] [stderr] Checking tokio-io v0.1.3 [INFO] [stderr] Checking libflate v0.1.12 [INFO] [stderr] Checking flate2 v0.2.20 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Checking tokio-core v0.1.10 [INFO] [stderr] Checking mime v0.3.5 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.2 [INFO] [stderr] Checking generic-array v0.8.3 [INFO] [stderr] Compiling serde_derive v1.0.16 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] error: failed to run custom build command for `mime_guess v2.0.0-alpha.2` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mime_guess-1f48e1813122da73/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: 0x556f68fd718b - 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: 0x556f68fd718b - 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: 0x556f68fd718b - std::sys_common::backtrace::_print::hccf66646430a9cbc [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x556f68fd718b - std::sys_common::backtrace::print::h6c902507aa1c61bf [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x556f68fd718b - std::panicking::default_hook::{{closure}}::hc0c79151a0a4b58f [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x556f68fd6e67 - std::panicking::default_hook::hfd408bb664bf319a [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x556f68fd7850 - std::panicking::rust_panic_with_hook::hb2d4371b6afbe17a [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x556f68fd73d2 - std::panicking::continue_panic_fmt::h6eef1f2d6e3abc2b [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x556f68fd72b6 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x556f68febfbd - core::panicking::panic_fmt::h9f3781beea83a294 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x556f68fca938 - core::result::unwrap_failed::hbc45925fdf985d74 [INFO] [stderr] at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x556f68f9746c - core::result::Result::unwrap::hcfe7dc89ff40f72a [INFO] [stderr] at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x556f68f9a665 - build_script_gen_mime_types::main::hc25daa1600379433 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-2.0.0-alpha.2/src/gen_mime_types.rs:22 [INFO] [stderr] 13: 0x556f68fc0e40 - std::rt::lang_start::{{closure}}::h50aa8f628dd9f583 [INFO] [stderr] at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x556f68fd72a3 - std::rt::lang_start_internal::{{closure}}::h86569d7197572496 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x556f68fd72a3 - std::panicking::try::do_call::hc05ef3c0bbb0a2c9 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x556f68fd91ea - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x556f68fd7d5d - std::panicking::try::h5f7f6728fc93999f [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x556f68fd7d5d - std::panic::catch_unwind::h9120cbd852b844f2 [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x556f68fd7d5d - std::rt::lang_start_internal::h20e51e71516fa081 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x556f68fc0e19 - std::rt::lang_start::hc58049a4c961f006 [INFO] [stderr] at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x556f68f9bc9a - main [INFO] [stderr] 22: 0x7f4130e722e1 - __libc_start_main [INFO] [stderr] 23: 0x556f68f760ba - _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" "6dfaf9711dedc526fcff57b6dca94544ba445605cd00600ef48e1167fa1d283e"` [INFO] running `"docker" "rm" "-f" "6dfaf9711dedc526fcff57b6dca94544ba445605cd00600ef48e1167fa1d283e"` [INFO] [stdout] 6dfaf9711dedc526fcff57b6dca94544ba445605cd00600ef48e1167fa1d283e