[INFO] crate okra 0.2.0 is already in cache
[INFO] extracting crate okra 0.2.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/okra/0.2.0
[INFO] extracting crate okra 0.2.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/okra/0.2.0
[INFO] validating manifest of okra-0.2.0 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 okra-0.2.0 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 okra-0.2.0
[INFO] finished frobbing okra-0.2.0
[INFO] frobbed toml for okra-0.2.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/okra/0.2.0/Cargo.toml
[INFO] started frobbing okra-0.2.0
[INFO] finished frobbing okra-0.2.0
[INFO] frobbed toml for okra-0.2.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/okra/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 okra-0.2.0 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/okra/0.2.0:/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] b206a73cf080d32649a0833d34af4b21519a8fd41901ec83b68f36be7e2d61dd
[INFO] running `"docker" "start" "-a" "b206a73cf080d32649a0833d34af4b21519a8fd41901ec83b68f36be7e2d61dd"`
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.15
[INFO] [stderr]    Compiling openapi-codegen v0.1.0
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling okra v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr] error: failed to run custom build command for `okra v0.2.0 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/okra-fabc00e1b6c4b12f/build-script-build` (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" }
[INFO] [stderr] 
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0: failure::backtrace::internal::InternalBacktrace::new::hfeab119dddb60f1c (0x560b38207863)
[INFO] [stderr]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/internal.rs:44
[INFO] [stderr]    1: failure::backtrace::Backtrace::new::hc4037e0989566921 (0x560b3820760e)
[INFO] [stderr]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/mod.rs:111
[INFO] [stderr]    2: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::hd654678984c71bf6 (0x560b37bc820a)
[INFO] [stderr]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/error/error_impl.rs:19
[INFO] [stderr]    3: <failure::error::Error as core::convert::From<F>>::from::h77be3f9e0f8182b7 (0x560b37dc60a0)
[INFO] [stderr]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/error/mod.rs:36
[INFO] [stderr]    4: openapi_codegen::client::client::h11a49cb709551cd9 (0x560b37acc04f)
[INFO] [stderr]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/openapi-codegen-0.1.0/src/client/mod.rs:47
[INFO] [stderr]    5: build_script_build::main::h6d529a0a23e5b5f2 (0x560b37a9186e)
[INFO] [stderr]              at /opt/crater/workdir/build.rs:2
[INFO] [stderr]    6: std::rt::lang_start::{{closure}}::hd90a192bea2bdc3f (0x560b37a91820)
[INFO] [stderr]              at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]    7: std::rt::lang_start_internal::{{closure}}::h3a7adfabc7c47a5f (0x560b38254cd3)
[INFO] [stderr]              at src/libstd/rt.rs:49
[INFO] [stderr]       std::panicking::try::do_call::hc3d8373a0b215f51
[INFO] [stderr]              at src/libstd/panicking.rs:293
[INFO] [stderr]    8: __rust_maybe_catch_panic (0x560b382577ca)
[INFO] [stderr]              at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]    9: std::panicking::try::hfb06c315006b63ac (0x560b382557dd)
[INFO] [stderr]              at src/libstd/panicking.rs:272
[INFO] [stderr]       std::panic::catch_unwind::h6cd8469da971482b
[INFO] [stderr]              at src/libstd/panic.rs:394
[INFO] [stderr]       std::rt::lang_start_internal::he5218c8b95d395f2
[INFO] [stderr]              at src/libstd/rt.rs:48
[INFO] [stderr]   10: std::rt::lang_start::h92540b57d69439a3 (0x560b37a917f9)
[INFO] [stderr]              at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   11: main (0x560b37a918ba)
[INFO] [stderr]   12: __libc_start_main (0x7f50e61d82e1)
[INFO] [stderr]   13: _start (0x560b37a916aa)
[INFO] [stderr]   14: <unknown> (0x0)', src/libcore/result.rs:999:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x560b38255e03 - 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:     0x560b3825199b - std::sys_common::backtrace::_print::h49a82ae9552e35c7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x560b38254c26 - 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:     0x560b382549b9 - std::panicking::default_hook::he4af6af4ac7fef7b
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x560b382552cf - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x560b38254e51 - std::panicking::continue_panic_fmt::ha6d6ae144369025b
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x560b38254d35 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:308
[INFO] [stderr]    7:     0x560b3826b2dc - core::panicking::panic_fmt::hc4f83bfed80aeabd
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x560b37a91ac4 - core::result::unwrap_failed::h5e81ed3be2008719
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/macros.rs:18
[INFO] [stderr]    9:     0x560b37a91b6f - core::result::Result<T,E>::unwrap::hefb2d80191b27b38
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/result.rs:800
[INFO] [stderr]   10:     0x560b37a91886 - build_script_build::main::h6d529a0a23e5b5f2
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:2
[INFO] [stderr]   11:     0x560b37a9181f - std::rt::lang_start::{{closure}}::hd90a192bea2bdc3f
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x560b38254cd2 - 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:     0x560b382577c9 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   14:     0x560b382557dc - 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:     0x560b37a917f8 - std::rt::lang_start::h92540b57d69439a3
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   16:     0x560b37a918b9 - main
[INFO] [stderr]   17:     0x7f50e61d82e0 - __libc_start_main
[INFO] [stderr]   18:     0x560b37a916a9 - _start
[INFO] [stderr]   19:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "b206a73cf080d32649a0833d34af4b21519a8fd41901ec83b68f36be7e2d61dd"`
[INFO] running `"docker" "rm" "-f" "b206a73cf080d32649a0833d34af4b21519a8fd41901ec83b68f36be7e2d61dd"`
[INFO] [stdout] b206a73cf080d32649a0833d34af4b21519a8fd41901ec83b68f36be7e2d61dd