[INFO] fetching crate bincode-no-std 1.0.0... [INFO] extracting crate bincode-no-std 1.0.0 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/bincode-no-std/1.0.0 [INFO] extracting crate bincode-no-std 1.0.0 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/bincode-no-std/1.0.0 [INFO] validating manifest of bincode-no-std-1.0.0 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of bincode-no-std-1.0.0 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing bincode-no-std-1.0.0 [INFO] finished frobbing bincode-no-std-1.0.0 [INFO] frobbed toml for bincode-no-std-1.0.0 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/bincode-no-std/1.0.0/Cargo.toml [INFO] started frobbing bincode-no-std-1.0.0 [INFO] finished frobbing bincode-no-std-1.0.0 [INFO] frobbed toml for bincode-no-std-1.0.0 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/bincode-no-std/1.0.0/Cargo.toml [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking bincode-no-std-1.0.0 against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008 [INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-4/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/bincode-no-std/1.0.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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=forbid" "-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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 51ca410ae6b6ec159f3ea28a2c4eafc9c483bc764ca8a3da50d45bac363d23d8 [INFO] running `"docker" "start" "-a" "51ca410ae6b6ec159f3ea28a2c4eafc9c483bc764ca8a3da50d45bac363d23d8"` [INFO] [stderr] Compiling serde v1.0.94 [INFO] [stderr] Compiling core_io v0.1.20190701 [INFO] [stderr] Compiling serde_derive v1.0.94 [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/crater/target/debug/build/core_io-a27abbf4d23bc24c/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:1034:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x556979fc4ecb - backtrace::backtrace::libunwind::trace::h8758853b907b30fd [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x556979fc4ecb - backtrace::backtrace::trace_unsynchronized::h979d07d4bfdce29c [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x556979fc4ecb - std::sys_common::backtrace::_print::ha749bbdb811617ea [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x556979fc4ecb - std::sys_common::backtrace::print::h86a6ff63a904e869 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x556979fc4ecb - std::panicking::default_hook::{{closure}}::h68500b20afb715b9 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x556979fc4ba7 - std::panicking::default_hook::ha801ade4ae33c264 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x556979fc5590 - std::panicking::rust_panic_with_hook::hfb51b615c6060100 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x556979fc5112 - std::panicking::continue_panic_fmt::h94bd84d5bf32c833 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x556979fc4ff6 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x556979fdde7d - core::panicking::panic_fmt::h8a74e5820cacd07c [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x556979fddee7 - core::option::expect_failed::hc233d79a7845c56c [INFO] [stderr] at src/libcore/option.rs:1034 [INFO] [stderr] 11: 0x556979f97e1d - core::option::Option::expect::h54a959e4bd3a42b8 [INFO] [stderr] at /rustc/8f81d0bf6baf07b92f1246696722485c4ca0b049/src/libcore/option.rs:314 [INFO] [stderr] 12: 0x556979f927cb - build_script_build::main::hb14631aa0722505d [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/core_io-0.1.20190701/build.rs:73 [INFO] [stderr] 13: 0x556979f99870 - std::rt::lang_start::{{closure}}::h94c9194dda9e4281 [INFO] [stderr] at /rustc/8f81d0bf6baf07b92f1246696722485c4ca0b049/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x556979fc4fe3 - std::rt::lang_start_internal::{{closure}}::h25858f7dd6124e1a [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x556979fc4fe3 - std::panicking::try::do_call::h51cc84caa9338daf [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x556979fcb54a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x556979fc5a9d - std::panicking::try::heb9d5da34e3fa707 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x556979fc5a9d - std::panic::catch_unwind::he2a2041733180f4c [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x556979fc5a9d - std::rt::lang_start_internal::h9e24cef029766dfd [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x556979f99849 - std::rt::lang_start::h1450fc276afea19b [INFO] [stderr] at /rustc/8f81d0bf6baf07b92f1246696722485c4ca0b049/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x556979f9338a - main [INFO] [stderr] 22: 0x7fcfda4442e1 - __libc_start_main [INFO] [stderr] 23: 0x556979f8fffa - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "51ca410ae6b6ec159f3ea28a2c4eafc9c483bc764ca8a3da50d45bac363d23d8"` [INFO] running `"docker" "rm" "-f" "51ca410ae6b6ec159f3ea28a2c4eafc9c483bc764ca8a3da50d45bac363d23d8"` [INFO] [stdout] 51ca410ae6b6ec159f3ea28a2c4eafc9c483bc764ca8a3da50d45bac363d23d8