[INFO] updating cached repository JellyWX/md-html
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JellyWX/md-html
[INFO] [stderr] * branch HEAD -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JellyWX/md-html" "work/ex/beta-1.37-6/sources/1.36.0/gh/JellyWX/md-html"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/JellyWX/md-html'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JellyWX/md-html" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JellyWX/md-html"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JellyWX/md-html'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3218ad34307a364968c477d0d2cafe0cdcd82efd
[INFO] sha for GitHub repo JellyWX/md-html: 3218ad34307a364968c477d0d2cafe0cdcd82efd
[INFO] validating manifest of JellyWX/md-html 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 JellyWX/md-html 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 JellyWX/md-html
[INFO] finished frobbing JellyWX/md-html
[INFO] frobbed toml for JellyWX/md-html written to work/ex/beta-1.37-6/sources/1.36.0/gh/JellyWX/md-html/Cargo.toml
[INFO] started frobbing JellyWX/md-html
[INFO] finished frobbing JellyWX/md-html
[INFO] frobbed toml for JellyWX/md-html written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JellyWX/md-html/Cargo.toml
[INFO] crate JellyWX/md-html 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing JellyWX/md-html against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JellyWX/md-html:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 9f27fd1810b061a6211ade8afb32bef66d5acb40bf44943be3b4eb5c77b61e5b
[INFO] running `"docker" "start" "-a" "9f27fd1810b061a6211ade8afb32bef66d5acb40bf44943be3b4eb5c77b61e5b"`
[INFO] [stderr] Compiling proc-macro-hack-impl v0.4.1
[INFO] [stderr] Compiling num-traits v0.2.6
[INFO] [stderr] Compiling libc v0.2.49
[INFO] [stderr] Compiling spin v0.5.0
[INFO] [stderr] Compiling syn v0.15.27
[INFO] [stderr] Compiling pyo3 v0.6.0-alpha.4
[INFO] [stderr] Compiling proc-macro-hack v0.4.1
[INFO] [stderr] Compiling mashup-impl v0.1.9
[INFO] [stderr] Compiling mashup v0.1.9
[INFO] [stderr] error: failed to run custom build command for `pyo3 v0.6.0-alpha.4`
[INFO] [stderr]
[INFO] [stderr] Caused by:
[INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/pyo3-087bab309a75b49f/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] Error: pyo3 requires a nightly or dev version of Rust.
[INFO] [stderr] Installed version is: 1.37.0-beta.6 (2019-07-22). Minimum required: 1.34.0-nightly (2019-02-06).
[INFO] [stderr] thread 'main' panicked at 'Aborting compilation due to incompatible compiler.', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pyo3-0.6.0-alpha.4/build.rs:527:17
[INFO] [stderr] stack backtrace:
[INFO] [stderr] 0: 0x563bc938f55b - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc
[INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr] 1: 0x563bc938f55b - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f
[INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr] 2: 0x563bc938f55b - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250
[INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr] 3: 0x563bc938f55b - std::sys_common::backtrace::print::h31646c3786c57441
[INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr] 4: 0x563bc938f55b - std::panicking::default_hook::{{closure}}::hda785e768c746ae7
[INFO] [stderr] at src/libstd/panicking.rs:200
[INFO] [stderr] 5: 0x563bc938f237 - std::panicking::default_hook::h0c4b76f338614ef1
[INFO] [stderr] at src/libstd/panicking.rs:214
[INFO] [stderr] 6: 0x563bc938fc70 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce
[INFO] [stderr] at src/libstd/panicking.rs:477
[INFO] [stderr] 7: 0x563bc93748a8 - std::panicking::begin_panic::hee0e18f11fab49f4
[INFO] [stderr] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:411
[INFO] [stderr] 8: 0x563bc91763aa - build_script_build::check_rustc_version::h57726934dedebe57
[INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pyo3-0.6.0-alpha.4/build.rs:527
[INFO] [stderr] 9: 0x563bc9176a6c - build_script_build::main::hde8454b2b2586326
[INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pyo3-0.6.0-alpha.4/build.rs:551
[INFO] [stderr] 10: 0x563bc917dd20 - std::rt::lang_start::{{closure}}::h9a1a9e30785442fc
[INFO] [stderr] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/rt.rs:64
[INFO] [stderr] 11: 0x563bc938f673 - std::rt::lang_start_internal::{{closure}}::h055e1fdc5578d418
[INFO] [stderr] at src/libstd/rt.rs:49
[INFO] [stderr] 12: 0x563bc938f673 - std::panicking::try::do_call::h480cafa68c9928b4
[INFO] [stderr] at src/libstd/panicking.rs:296
[INFO] [stderr] 13: 0x563bc9395efa - __rust_maybe_catch_panic
[INFO] [stderr] at src/libpanic_unwind/lib.rs:82
[INFO] [stderr] 14: 0x563bc939017d - std::panicking::try::he0549d0299de204a
[INFO] [stderr] at src/libstd/panicking.rs:275
[INFO] [stderr] 15: 0x563bc939017d - std::panic::catch_unwind::h422dc2db98f03517
[INFO] [stderr] at src/libstd/panic.rs:394
[INFO] [stderr] 16: 0x563bc939017d - std::rt::lang_start_internal::h121de03325a3f900
[INFO] [stderr] at src/libstd/rt.rs:48
[INFO] [stderr] 17: 0x563bc917dcf9 - std::rt::lang_start::hab31b02827ca6cdd
[INFO] [stderr] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/rt.rs:64
[INFO] [stderr] 18: 0x563bc9177d4a - main
[INFO] [stderr] 19: 0x7f5a216b82e1 - __libc_start_main
[INFO] [stderr] 20: 0x563bc916e26a - _start
[INFO] [stderr] 21: 0x0 -
[INFO] [stderr]
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "9f27fd1810b061a6211ade8afb32bef66d5acb40bf44943be3b4eb5c77b61e5b"`
[INFO] running `"docker" "rm" "-f" "9f27fd1810b061a6211ade8afb32bef66d5acb40bf44943be3b4eb5c77b61e5b"`
[INFO] [stdout] 9f27fd1810b061a6211ade8afb32bef66d5acb40bf44943be3b4eb5c77b61e5b