[INFO] updating cached repository spacekookie/thingymabobby [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/spacekookie/thingymabobby [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/spacekookie/thingymabobby" "work/ex/beta-1.37-6/sources/1.36.0/gh/spacekookie/thingymabobby"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/spacekookie/thingymabobby'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/spacekookie/thingymabobby" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/spacekookie/thingymabobby"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/spacekookie/thingymabobby'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 9bf7891b977ec60c0909fe6bbcf68457b6d5e8aa [INFO] sha for GitHub repo spacekookie/thingymabobby: 9bf7891b977ec60c0909fe6bbcf68457b6d5e8aa [INFO] validating manifest of spacekookie/thingymabobby on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of spacekookie/thingymabobby on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing spacekookie/thingymabobby [INFO] finished frobbing spacekookie/thingymabobby [INFO] frobbed toml for spacekookie/thingymabobby written to work/ex/beta-1.37-6/sources/1.36.0/gh/spacekookie/thingymabobby/Cargo.toml [INFO] started frobbing spacekookie/thingymabobby [INFO] finished frobbing spacekookie/thingymabobby [INFO] frobbed toml for spacekookie/thingymabobby written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/spacekookie/thingymabobby/Cargo.toml [INFO] crate spacekookie/thingymabobby already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing spacekookie/thingymabobby against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/spacekookie/thingymabobby:/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=warn" "-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" "+1.36.0" "build" "--frozen"` [INFO] [stdout] 7c3ba73f8fd6c4a021c79b1d22f152d228a2a5c0aae7eb0630ac1a756b1c23bf [INFO] running `"docker" "start" "-a" "7c3ba73f8fd6c4a021c79b1d22f152d228a2a5c0aae7eb0630ac1a756b1c23bf"` [INFO] [stderr] Compiling utf-8 v0.7.2 [INFO] [stderr] Compiling procedural-masquerade v0.1.5 [INFO] [stderr] Compiling openssl-sys v0.9.26 [INFO] [stderr] Compiling tokio-service v0.1.0 [INFO] [stderr] Compiling relay v0.1.1 [INFO] [stderr] Compiling dtoa-short v0.3.1 [INFO] [stderr] Compiling servo_arc v0.1.0 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling tokio-io v0.1.5 [INFO] [stderr] Compiling serde_derive_internals v0.19.0 [INFO] [stderr] Compiling cssparser v0.23.2 [INFO] [stderr] Compiling html5ever v0.22.0 [INFO] [stderr] Compiling backtrace-sys v0.1.16 [INFO] [stderr] Compiling futf v0.1.3 [INFO] [stderr] Compiling backtrace v0.3.5 [INFO] [stderr] Compiling digest v0.6.2 [INFO] [stderr] Compiling crypto-mac v0.4.0 [INFO] [stderr] Compiling serde_urlencoded v0.5.1 [INFO] [stderr] Compiling tendril v0.4.0 [INFO] [stderr] Compiling sha-1 v0.4.1 [INFO] [stderr] Compiling hmac v0.4.2 [INFO] [stderr] Compiling string_cache_codegen v0.4.0 [INFO] [stderr] Compiling tokio-core v0.1.12 [INFO] [stderr] Compiling error-chain v0.11.0 [INFO] [stderr] Compiling selectors v0.19.0 [INFO] [stderr] Compiling cssparser-macros v0.3.0 [INFO] [stderr] Compiling openssl v0.9.24 [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-83a59ed50388b36b/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: 0x55cc2bb15003 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55 [INFO] [stderr] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stderr] 1: 0x55cc2bb10c1b - std::sys_common::backtrace::_print::h49a82ae9552e35c7 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stderr] 2: 0x55cc2bb13e76 - std::panicking::default_hook::{{closure}}::he20974adbefcc046 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] at src/libstd/panicking.rs:197 [INFO] [stderr] 3: 0x55cc2bb13c09 - std::panicking::default_hook::he4af6af4ac7fef7b [INFO] [stderr] at src/libstd/panicking.rs:211 [INFO] [stderr] 4: 0x55cc2bb144cf - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f [INFO] [stderr] at src/libstd/panicking.rs:474 [INFO] [stderr] 5: 0x55cc2bb14051 - std::panicking::continue_panic_fmt::ha6d6ae144369025b [INFO] [stderr] at src/libstd/panicking.rs:381 [INFO] [stderr] 6: 0x55cc2bb13f35 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:308 [INFO] [stderr] 7: 0x55cc2bb24dac - core::panicking::panic_fmt::hc4f83bfed80aeabd [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 8: 0x55cc2bb06ef6 - core::result::unwrap_failed::hec71880df7822237 [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/macros.rs:18 [INFO] [stderr] 9: 0x55cc2bad242a - core::result::Result::unwrap::hb6de2115c9558492 [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/result.rs:800 [INFO] [stderr] 10: 0x55cc2badd4e4 - build_script_gen_mime_types::main::h665542eb714ac01c [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] 11: 0x55cc2bafc38f - std::rt::lang_start::{{closure}}::hd495a7723e1e697e [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64 [INFO] [stderr] 12: 0x55cc2bb13f22 - std::panicking::try::do_call::hc3d8373a0b215f51 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] at src/libstd/panicking.rs:293 [INFO] [stderr] 13: 0x55cc2bb16459 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 14: 0x55cc2bb149dc - std::rt::lang_start_internal::he5218c8b95d395f2 [INFO] [stderr] at src/libstd/panicking.rs:272 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 15: 0x55cc2bafc368 - std::rt::lang_start::h1f4febb4b73bc558 [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64 [INFO] [stderr] 16: 0x55cc2badeb29 - main [INFO] [stderr] 17: 0x7fa7a07e62e0 - __libc_start_main [INFO] [stderr] 18: 0x55cc2bab26f9 - _start [INFO] [stderr] 19: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "7c3ba73f8fd6c4a021c79b1d22f152d228a2a5c0aae7eb0630ac1a756b1c23bf"` [INFO] running `"docker" "rm" "-f" "7c3ba73f8fd6c4a021c79b1d22f152d228a2a5c0aae7eb0630ac1a756b1c23bf"` [INFO] [stdout] 7c3ba73f8fd6c4a021c79b1d22f152d228a2a5c0aae7eb0630ac1a756b1c23bf