[INFO] crate core_io 0.1.20190701 is already in cache [INFO] testing core_io-0.1.20190701 against beta-2019-09-28 for beta-1.39-1 [INFO] extracting crate core_io 0.1.20190701 into work/builds/worker-6/source [INFO] validating manifest of crates.io crate core_io 0.1.20190701 on toolchain beta-2019-09-28 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate core_io 0.1.20190701 [INFO] finished tweaking crates.io crate core_io 0.1.20190701 [INFO] tweaked toml for crates.io crate core_io 0.1.20190701 written to work/builds/worker-6/source/Cargo.toml [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"` [INFO] [stdout] d5e9daa538627678be1a9e36daa53c5522d449ca007c7dfd920217eef02533fa [INFO] running `"docker" "start" "-a" "d5e9daa538627678be1a9e36daa53c5522d449ca007c7dfd920217eef02533fa"` [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Compiling core_io v0.1.20190701 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `core_io v0.1.20190701 (/opt/rustwide/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/core_io-b2d582d608a803ae/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'Unknown compiler version, upgrade core_io?', src/libcore/option.rs:1190:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x560980ad6c94 - backtrace::backtrace::libunwind::trace::hf625d18232cbbbd4 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x560980ad6c94 - backtrace::backtrace::trace_unsynchronized::h41d74150fc6ff542 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x560980ad6c94 - std::sys_common::backtrace::_print_fmt::h85d37830c667a1f9 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:76 [INFO] [stderr] 3: 0x560980ad6c94 - ::fmt::h2b7ac01d5feaf9b2 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:60 [INFO] [stderr] 4: 0x560980af457c - core::fmt::write::h7fd0d904495c035f [INFO] [stderr] at src/libcore/fmt/mod.rs:1030 [INFO] [stderr] 5: 0x560980ad44b7 - std::io::Write::write_fmt::h663e4bf63637c947 [INFO] [stderr] at src/libstd/io/mod.rs:1412 [INFO] [stderr] 6: 0x560980ad9035 - std::sys_common::backtrace::_print::h4c743f7c274a5a74 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:64 [INFO] [stderr] 7: 0x560980ad9035 - std::sys_common::backtrace::print::ha5c4f4bf03800d4d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x560980ad9035 - std::panicking::default_hook::{{closure}}::h8b842185774c09e6 [INFO] [stderr] at src/libstd/panicking.rs:196 [INFO] [stderr] 9: 0x560980ad8d26 - std::panicking::default_hook::hd8ec13ee1bc2a65a [INFO] [stderr] at src/libstd/panicking.rs:210 [INFO] [stderr] 10: 0x560980ad9685 - std::panicking::rust_panic_with_hook::hf3b27166e5f403e7 [INFO] [stderr] at src/libstd/panicking.rs:473 [INFO] [stderr] 11: 0x560980ad9222 - std::panicking::continue_panic_fmt::hd961751be84a6f83 [INFO] [stderr] at src/libstd/panicking.rs:380 [INFO] [stderr] 12: 0x560980ad9116 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:307 [INFO] [stderr] 13: 0x560980af1c8a - core::panicking::panic_fmt::h467e0364f9237670 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 14: 0x560980af1cf7 - core::option::expect_failed::h9131e4db7f00ccd6 [INFO] [stderr] at src/libcore/option.rs:1190 [INFO] [stderr] 15: 0x560980aabdaa - core::option::Option::expect::h6077d40cf4fc3d2e [INFO] [stderr] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libcore/option.rs:345 [INFO] [stderr] 16: 0x560980aa6a1b - build_script_build::main::hddecec13c3ae32d4 [INFO] [stderr] at /opt/rustwide/workdir/build.rs:73 [INFO] [stderr] 17: 0x560980aad3e0 - std::rt::lang_start::{{closure}}::h5810ae39673f3df2 [INFO] [stderr] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/rt.rs:64 [INFO] [stderr] 18: 0x560980ad9103 - std::rt::lang_start_internal::{{closure}}::hf85bf15597d76295 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 19: 0x560980ad9103 - std::panicking::try::do_call::hd308ec0604b9bc21 [INFO] [stderr] at src/libstd/panicking.rs:292 [INFO] [stderr] 20: 0x560980adf4ba - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 21: 0x560980ad9b7d - std::panicking::try::hafc45125a5bd2b22 [INFO] [stderr] at src/libstd/panicking.rs:271 [INFO] [stderr] 22: 0x560980ad9b7d - std::panic::catch_unwind::h8494678ec44c4b51 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 23: 0x560980ad9b7d - std::rt::lang_start_internal::h7404667a595739f8 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 24: 0x560980aad3b9 - std::rt::lang_start::he9c280b7c852dc19 [INFO] [stderr] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/rt.rs:64 [INFO] [stderr] 25: 0x560980aa758a - main [INFO] [stderr] 26: 0x7f5e0334cb97 - __libc_start_main [INFO] [stderr] 27: 0x560980aa43fa - _start [INFO] [stderr] 28: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "d5e9daa538627678be1a9e36daa53c5522d449ca007c7dfd920217eef02533fa"` [INFO] running `"docker" "rm" "-f" "d5e9daa538627678be1a9e36daa53c5522d449ca007c7dfd920217eef02533fa"` [INFO] [stdout] d5e9daa538627678be1a9e36daa53c5522d449ca007c7dfd920217eef02533fa