[INFO] crate bincode-no-std 1.0.0 is already in cache
[INFO] checking bincode-no-std-1.0.0 against master#9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7 for pr-64564
[INFO] extracting crate bincode-no-std 1.0.0 into work/builds/worker-7/source
[INFO] validating manifest of crates.io crate bincode-no-std 1.0.0 on toolchain 9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bincode-no-std 1.0.0
[INFO] finished tweaking crates.io crate bincode-no-std 1.0.0
[INFO] tweaked toml for crates.io crate bincode-no-std 1.0.0 written to work/builds/worker-7/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/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=forbid" "-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" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 212944845bf0c663e55307103088016092701756d97d46967624b35a68ce8ee5
[INFO] running `"docker" "start" "-a" "212944845bf0c663e55307103088016092701756d97d46967624b35a68ce8ee5"`
[INFO] [stderr]    Compiling core_io v0.1.20190701
[INFO] [stderr]     Checking serde_bytes v0.10.5
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr] error: failed to run custom build command for `core_io v0.1.20190701`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/core_io-4d0d144ec20f34af/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:     0x555ab33bfbb4 - backtrace::backtrace::libunwind::trace::h3c777145747bb537
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x555ab33bfbb4 - backtrace::backtrace::trace_unsynchronized::h66b9e4a5d8dcdac1
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x555ab33bfbb4 - std::sys_common::backtrace::_print_fmt::h67af8761982571ce
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:76
[INFO] [stderr]    3:     0x555ab33bfbb4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hd2414c318764e035
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:60
[INFO] [stderr]    4:     0x555ab33dd49c - core::fmt::write::h6b1d9e7d0caf83ef
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1030
[INFO] [stderr]    5:     0x555ab33bd3d7 - std::io::Write::write_fmt::h7d23ef4c2e86d894
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x555ab33c1f55 - std::sys_common::backtrace::_print::h95f9ce51820bb860
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:64
[INFO] [stderr]    7:     0x555ab33c1f55 - std::sys_common::backtrace::print::h60cdacab02cba05c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x555ab33c1f55 - std::panicking::default_hook::{{closure}}::hd6f0e16d93b9b5c8
[INFO] [stderr]                                at src/libstd/panicking.rs:196
[INFO] [stderr]    9:     0x555ab33c1c46 - std::panicking::default_hook::hd45736b469c8d928
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x555ab33c25a5 - std::panicking::rust_panic_with_hook::hcc17bc0996b76a4c
[INFO] [stderr]                                at src/libstd/panicking.rs:473
[INFO] [stderr]   11:     0x555ab33c2142 - std::panicking::continue_panic_fmt::hacd60ce981312f06
[INFO] [stderr]                                at src/libstd/panicking.rs:380
[INFO] [stderr]   12:     0x555ab33c2036 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:307
[INFO] [stderr]   13:     0x555ab33dabaa - core::panicking::panic_fmt::h1ebeaa41bf98abea
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   14:     0x555ab33dac17 - core::option::expect_failed::h79a55707b6554f35
[INFO] [stderr]                                at src/libcore/option.rs:1190
[INFO] [stderr]   15:     0x555ab3394d7a - core::option::Option<T>::expect::h1dc2d346537c2208
[INFO] [stderr]                                at /rustc/9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7/src/libcore/option.rs:345
[INFO] [stderr]   16:     0x555ab338f9eb - build_script_build::main::h53bdb1269ae08fd0
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/core_io-0.1.20190701/build.rs:73
[INFO] [stderr]   17:     0x555ab33963b0 - std::rt::lang_start::{{closure}}::h89b265c9b6042bc6
[INFO] [stderr]                                at /rustc/9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7/src/libstd/rt.rs:64
[INFO] [stderr]   18:     0x555ab33c2023 - std::rt::lang_start_internal::{{closure}}::h677067c06c8055b2
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   19:     0x555ab33c2023 - std::panicking::try::do_call::h02b31030ec0cae5e
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   20:     0x555ab33c83da - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   21:     0x555ab33c2a9d - std::panicking::try::h3d608dc302373513
[INFO] [stderr]                                at src/libstd/panicking.rs:271
[INFO] [stderr]   22:     0x555ab33c2a9d - std::panic::catch_unwind::hbd3bc0654419de57
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   23:     0x555ab33c2a9d - std::rt::lang_start_internal::hb18b97680fa7fcd0
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   24:     0x555ab3396389 - std::rt::lang_start::h3ae98c5cdef8c434
[INFO] [stderr]                                at /rustc/9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7/src/libstd/rt.rs:64
[INFO] [stderr]   25:     0x555ab339055a - main
[INFO] [stderr]   26:     0x7fea46624b97 - __libc_start_main
[INFO] [stderr]   27:     0x555ab338d3ca - _start
[INFO] [stderr]   28:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "212944845bf0c663e55307103088016092701756d97d46967624b35a68ce8ee5"`
[INFO] running `"docker" "rm" "-f" "212944845bf0c663e55307103088016092701756d97d46967624b35a68ce8ee5"`
[INFO] [stdout] 212944845bf0c663e55307103088016092701756d97d46967624b35a68ce8ee5