[INFO] cloning repository rust-nairobi/rconvert [INFO] running `"git" "clone" "--bare" "git://github.com/rust-nairobi/rconvert.git" "work/cache/sources/gh/rust-nairobi/rconvert"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/rust-nairobi/rconvert'... [INFO] running `"git" "clone" "work/cache/sources/gh/rust-nairobi/rconvert" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/rust-nairobi/rconvert"` [INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/rust-nairobi/rconvert'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/rust-nairobi/rconvert" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/rust-nairobi/rconvert"` [INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/rust-nairobi/rconvert'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] eab18039f05d69995e611d5b1b52000a80eccfc1 [INFO] sha for GitHub repo rust-nairobi/rconvert: eab18039f05d69995e611d5b1b52000a80eccfc1 [INFO] validating manifest of rust-nairobi/rconvert on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of rust-nairobi/rconvert on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing rust-nairobi/rconvert [INFO] finished frobbing rust-nairobi/rconvert [INFO] frobbed toml for rust-nairobi/rconvert written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/rust-nairobi/rconvert/Cargo.toml [INFO] started frobbing rust-nairobi/rconvert [INFO] finished frobbing rust-nairobi/rconvert [INFO] frobbed toml for rust-nairobi/rconvert written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/rust-nairobi/rconvert/Cargo.toml [INFO] crate rust-nairobi/rconvert already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking rust-nairobi/rconvert against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-6/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/rust-nairobi/rconvert:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 6d5f354cb02d7149fd072a80a39c8da029b95a8976d57803896b656015015fb3 [INFO] running `"docker" "start" "-a" "6d5f354cb02d7149fd072a80a39c8da029b95a8976d57803896b656015015fb3"` [INFO] [stderr] Checking iovec v0.1.1 [INFO] [stderr] Compiling rand v0.3.20 [INFO] [stderr] Checking atty v0.2.6 [INFO] [stderr] Checking relay v0.1.0 [INFO] [stderr] Checking native-tls v0.1.5 [INFO] [stderr] Checking clap v2.29.2 [INFO] [stderr] Checking bytes v0.4.6 [INFO] [stderr] Checking mio v0.6.12 [INFO] [stderr] Checking tokio-io v0.1.4 [INFO] [stderr] Checking uuid v0.5.1 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Checking tokio-core v0.1.12 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.3 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking tokio-tls v0.1.4 [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-0ec077113fea12f7/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: 0x55ce2bc7ba6b - backtrace::backtrace::libunwind::trace::h00e2f01ca6755a19 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55ce2bc7ba6b - backtrace::backtrace::trace_unsynchronized::hc2e55f9123c24578 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55ce2bc7ba6b - std::sys_common::backtrace::_print::h878d975ca669e1b4 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55ce2bc7ba6b - std::sys_common::backtrace::print::h1b2f6b4885b021f3 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55ce2bc7ba6b - std::panicking::default_hook::{{closure}}::he9ab19abef5c787f [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x55ce2bc7b76c - std::panicking::default_hook::h9b73316e8577c3fa [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x55ce2bc7c130 - std::panicking::rust_panic_with_hook::he062866264d328c5 [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x55ce2bc7bcb2 - std::panicking::continue_panic_fmt::hd91e15ffe4fde332 [INFO] [stderr] at src/libstd/panicking.rs:382 [INFO] [stderr] 8: 0x55ce2bc7bb96 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:309 [INFO] [stderr] 9: 0x55ce2bc90cdd - core::panicking::panic_fmt::h684eb94a03e3ec1d [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55ce2bc6ee08 - core::result::unwrap_failed::h65f800de76844cd9 [INFO] [stderr] at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x55ce2bc3b2bc - core::result::Result::unwrap::h7970ddf1652c1f10 [INFO] [stderr] at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x55ce2bc42305 - build_script_gen_mime_types::main::h9d2615903110d266 [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: 0x55ce2bc5df20 - std::rt::lang_start::{{closure}}::hda65c2294e31dc83 [INFO] [stderr] at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55ce2bc7bb83 - std::rt::lang_start_internal::{{closure}}::hac4055a4b24c3806 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55ce2bc7bb83 - std::panicking::try::do_call::h0bdfdef338a7b8de [INFO] [stderr] at src/libstd/panicking.rs:294 [INFO] [stderr] 16: 0x55ce2bc7df2a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x55ce2bc7c63d - std::panicking::try::h5986cc11523af350 [INFO] [stderr] at src/libstd/panicking.rs:273 [INFO] [stderr] 18: 0x55ce2bc7c63d - std::panic::catch_unwind::h5e6e2d11127cecca [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x55ce2bc7c63d - std::rt::lang_start_internal::hd1ad303a81183dc4 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55ce2bc5def9 - std::rt::lang_start::hb9c700907a672250 [INFO] [stderr] at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55ce2bc4394a - main [INFO] [stderr] 22: 0x7f54945612e1 - __libc_start_main [INFO] [stderr] 23: 0x55ce2bc1b3fa - _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" "6d5f354cb02d7149fd072a80a39c8da029b95a8976d57803896b656015015fb3"` [INFO] running `"docker" "rm" "-f" "6d5f354cb02d7149fd072a80a39c8da029b95a8976d57803896b656015015fb3"` [INFO] [stdout] 6d5f354cb02d7149fd072a80a39c8da029b95a8976d57803896b656015015fb3