[INFO] crate parker 0.0.0 is already in cache [INFO] extracting crate parker 0.0.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/parker/0.0.0 [INFO] extracting crate parker 0.0.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/parker/0.0.0 [INFO] validating manifest of parker-0.0.0 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 parker-0.0.0 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 parker-0.0.0 [INFO] finished frobbing parker-0.0.0 [INFO] frobbed toml for parker-0.0.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/parker/0.0.0/Cargo.toml [INFO] started frobbing parker-0.0.0 [INFO] finished frobbing parker-0.0.0 [INFO] frobbed toml for parker-0.0.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/parker/0.0.0/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing parker-0.0.0 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-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/parker/0.0.0:/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] 4f0c9d1d3ff7545c4174138cfc9352995f5f23b3b78786c26ce2be411c97ddf0 [INFO] running `"docker" "start" "-a" "4f0c9d1d3ff7545c4174138cfc9352995f5f23b3b78786c26ce2be411c97ddf0"` [INFO] [stderr] Compiling syn v0.15.42 [INFO] [stderr] Compiling unic-char-range v0.7.0 [INFO] [stderr] Compiling serde v1.0.98 [INFO] [stderr] Compiling unic-common v0.7.0 [INFO] [stderr] Compiling deunicode v0.4.3 [INFO] [stderr] Compiling humansize v1.1.0 [INFO] [stderr] Compiling ring v0.13.5 [INFO] [stderr] Compiling pear_codegen v0.1.2 [INFO] [stderr] error: failed to run custom build command for `pear_codegen v0.1.2` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/pear_codegen-0adab3ac63d3511e/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] Error: Pear requires a nightly or dev version of Rust. [INFO] [stderr] Installed version is: 1.36.0 (2019-07-03). Minimum required: 1.31.0-nightly (2018-10-05). [INFO] [stderr] thread 'main' panicked at 'Aborting compilation due to incompatible compiler.', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.2/build.rs:31:13 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x5575f40a6b93 - 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: 0x5575f40a27cb - std::sys_common::backtrace::_print::h49a82ae9552e35c7 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stderr] 2: 0x5575f40a5a26 - 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: 0x5575f40a57b9 - std::panicking::default_hook::he4af6af4ac7fef7b [INFO] [stderr] at src/libstd/panicking.rs:211 [INFO] [stderr] 4: 0x5575f40a607f - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f [INFO] [stderr] at src/libstd/panicking.rs:474 [INFO] [stderr] 5: 0x5575f4079193 - std::panicking::begin_panic::h0bfecc8f7c48d9cf [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:408 [INFO] [stderr] 6: 0x5575f407721e - build_script_build::main::h62ce5a50516d2fa8 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.2/build.rs:31 [INFO] [stderr] 7: 0x5575f4079b7f - std::rt::lang_start::{{closure}}::h8dacd6ecc58c5ac4 [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64 [INFO] [stderr] 8: 0x5575f40a5ad2 - std::panicking::try::do_call::hc3d8373a0b215f51 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] at src/libstd/panicking.rs:293 [INFO] [stderr] 9: 0x5575f40abfc9 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 10: 0x5575f40a658c - 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] 11: 0x5575f4079b58 - std::rt::lang_start::hab29b371b8b34776 [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64 [INFO] [stderr] 12: 0x5575f4078089 - main [INFO] [stderr] 13: 0x7f7cc2f0d2e0 - __libc_start_main [INFO] [stderr] 14: 0x5575f4076b79 - _start [INFO] [stderr] 15: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "4f0c9d1d3ff7545c4174138cfc9352995f5f23b3b78786c26ce2be411c97ddf0"` [INFO] running `"docker" "rm" "-f" "4f0c9d1d3ff7545c4174138cfc9352995f5f23b3b78786c26ce2be411c97ddf0"` [INFO] [stdout] 4f0c9d1d3ff7545c4174138cfc9352995f5f23b3b78786c26ce2be411c97ddf0