[INFO] cloning repository 5830ification/rust-simple-ml [INFO] running `"git" "clone" "--bare" "git://github.com/5830ification/rust-simple-ml.git" "work/cache/sources/gh/5830ification/rust-simple-ml"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/5830ification/rust-simple-ml'... [INFO] running `"git" "clone" "work/cache/sources/gh/5830ification/rust-simple-ml" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/5830ification/rust-simple-ml"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/5830ification/rust-simple-ml'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/5830ification/rust-simple-ml" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/5830ification/rust-simple-ml"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/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#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of 5830ification/rust-simple-ml on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-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-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/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-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/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/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking 5830ification/rust-simple-ml against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008 [INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/5830ification/rust-simple-ml:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] c171cd3556ae4234fdea01602c3584d45be25f221ec24e39fd67efef968deb10 [INFO] running `"docker" "start" "-a" "c171cd3556ae4234fdea01602c3584d45be25f221ec24e39fd67efef968deb10"` [INFO] [stderr] Checking num-complex v0.1.40 [INFO] [stderr] Checking bincode v0.9.2 [INFO] [stderr] Checking futures-cpupool v0.1.7 [INFO] [stderr] Checking uuid v0.5.1 [INFO] [stderr] Checking tokio-io v0.1.3 [INFO] [stderr] Checking serde_urlencoded v0.5.1 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Checking tokio-core v0.1.10 [INFO] [stderr] Checking alga v0.5.2 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.2 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking tokio-tls v0.1.3 [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-8968935d54801387/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: 0x5602df506b9b - backtrace::backtrace::libunwind::trace::h3eb7dec79b0cb248 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x5602df506b9b - backtrace::backtrace::trace_unsynchronized::h828522acfd8fecfd [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x5602df506b9b - std::sys_common::backtrace::_print::ha50329dede3e270e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x5602df506b9b - std::sys_common::backtrace::print::ha6d7f96740481555 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x5602df506b9b - std::panicking::default_hook::{{closure}}::h48c4812e51e499b0 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x5602df506877 - std::panicking::default_hook::h5d25d0fa83093442 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x5602df507260 - std::panicking::rust_panic_with_hook::h1babb2b4ac73106c [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x5602df506de2 - std::panicking::continue_panic_fmt::hb318720956a96dd4 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x5602df506cc6 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x5602df51b9cd - core::panicking::panic_fmt::h78250769f89ff6a0 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x5602df4fa138 - core::result::unwrap_failed::h4c0fcf4d5aaec28d [INFO] [stderr] at /rustc/848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x5602df4c773c - core::result::Result::unwrap::h7f2abdc8398c984d [INFO] [stderr] at /rustc/848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x5602df4ca995 - build_script_gen_mime_types::main::h64d91909f72f251b [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: 0x5602df4f1170 - std::rt::lang_start::{{closure}}::h0499465da21f46c5 [INFO] [stderr] at /rustc/848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x5602df506cb3 - std::rt::lang_start_internal::{{closure}}::h8302806cea4153ed [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x5602df506cb3 - std::panicking::try::do_call::hc811096721c4b953 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x5602df508bfa - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x5602df50776d - std::panicking::try::h132c927956f6dad4 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x5602df50776d - std::panic::catch_unwind::h2f6ea137782ab73f [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x5602df50776d - std::rt::lang_start_internal::h0f27bcf63030d183 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x5602df4f1149 - std::rt::lang_start::h65fc2e44a70f168e [INFO] [stderr] at /rustc/848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x5602df4cbfca - main [INFO] [stderr] 22: 0x7f87dd7422e1 - __libc_start_main [INFO] [stderr] 23: 0x5602df4a63ca - _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" "c171cd3556ae4234fdea01602c3584d45be25f221ec24e39fd67efef968deb10"` [INFO] running `"docker" "rm" "-f" "c171cd3556ae4234fdea01602c3584d45be25f221ec24e39fd67efef968deb10"` [INFO] [stdout] c171cd3556ae4234fdea01602c3584d45be25f221ec24e39fd67efef968deb10