[INFO] crate core_io 0.1.20190701 is already in cache [INFO] checking core_io-0.1.20190701 against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350 [INFO] extracting crate core_io 0.1.20190701 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate core_io 0.1.20190701 on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1 [INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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 /workspace/builds/worker-5/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 7198ef51284983dc37a5560049e9b6fa5355bb083a516f6be6c2ba16b55b7f81 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "7198ef51284983dc37a5560049e9b6fa5355bb083a516f6be6c2ba16b55b7f81"` [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-6fae671c9392c80e/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'Unknown compiler version, upgrade core_io?', build.rs:73:13 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x56188d46d444 - backtrace::backtrace::libunwind::trace::hc26826043b7bf82f [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x56188d46d444 - backtrace::backtrace::trace_unsynchronized::hf9fe7343abcf3b6a [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x56188d46d444 - std::sys_common::backtrace::_print_fmt::hf5f83f377bc8d868 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 3: 0x56188d46d444 - ::fmt::hb2a7a6aa1b182a99 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x56188d48895c - core::fmt::write::hc09f142ab04e56d2 [INFO] [stderr] at src/libcore/fmt/mod.rs:1057 [INFO] [stderr] 5: 0x56188d46ace7 - std::io::Write::write_fmt::hafa429c292548705 [INFO] [stderr] at src/libstd/io/mod.rs:1426 [INFO] [stderr] 6: 0x56188d46f4d5 - std::sys_common::backtrace::_print::hcf3fff603fe810fd [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x56188d46f4d5 - std::sys_common::backtrace::print::h5ea515a32d6700a5 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x56188d46f4d5 - std::panicking::default_hook::{{closure}}::h324ce5172a1777e2 [INFO] [stderr] at src/libstd/panicking.rs:204 [INFO] [stderr] 9: 0x56188d46f1c1 - std::panicking::default_hook::h6593dbc4932c953a [INFO] [stderr] at src/libstd/panicking.rs:224 [INFO] [stderr] 10: 0x56188d46fa8a - std::panicking::rust_panic_with_hook::h04729d51ab5f86cb [INFO] [stderr] at src/libstd/panicking.rs:472 [INFO] [stderr] 11: 0x56188d46f670 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:380 [INFO] [stderr] 12: 0x56188d487ca1 - core::panicking::panic_fmt::h13aca3a92bd42a1a [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 13: 0x56188d487a33 - core::option::expect_failed::hd5ae7e973fe0d064 [INFO] [stderr] at src/libcore/option.rs:1190 [INFO] [stderr] 14: 0x56188d442355 - core::option::Option::expect::had32ddc0ac98b849 [INFO] [stderr] at /rustc/6250d56355d72264ece721e8d0dc95b16a6824b1/src/libcore/option.rs:346 [INFO] [stderr] 15: 0x56188d43e1f9 - build_script_build::main::h93a3ac2f7829d19b [INFO] [stderr] at /opt/rustwide/workdir/build.rs:73 [INFO] [stderr] 16: 0x56188d444370 - std::rt::lang_start::{{closure}}::hb8326478dc1497d4 [INFO] [stderr] at /rustc/6250d56355d72264ece721e8d0dc95b16a6824b1/src/libstd/rt.rs:67 [INFO] [stderr] 17: 0x56188d46f5a3 - std::rt::lang_start_internal::{{closure}}::h5c17144678350141 [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 18: 0x56188d46f5a3 - std::panicking::try::do_call::h8eaf10466ef75c80 [INFO] [stderr] at src/libstd/panicking.rs:305 [INFO] [stderr] 19: 0x56188d4757d7 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:86 [INFO] [stderr] 20: 0x56188d46ff30 - std::panicking::try::hbd218b3dcbe12757 [INFO] [stderr] at src/libstd/panicking.rs:281 [INFO] [stderr] 21: 0x56188d46ff30 - std::panic::catch_unwind::h0175a6dbda08cacb [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 22: 0x56188d46ff30 - std::rt::lang_start_internal::h09fd43f7d6ed11c7 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 23: 0x56188d444349 - std::rt::lang_start::h712406b151013d9c [INFO] [stderr] at /rustc/6250d56355d72264ece721e8d0dc95b16a6824b1/src/libstd/rt.rs:67 [INFO] [stderr] 24: 0x56188d43ed8a - main [INFO] [stderr] 25: 0x7fc1a6e50b97 - __libc_start_main [INFO] [stderr] 26: 0x56188d43bb8a - _start [INFO] [stderr] 27: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "7198ef51284983dc37a5560049e9b6fa5355bb083a516f6be6c2ba16b55b7f81"` [INFO] running `"docker" "rm" "-f" "7198ef51284983dc37a5560049e9b6fa5355bb083a516f6be6c2ba16b55b7f81"` [INFO] [stdout] 7198ef51284983dc37a5560049e9b6fa5355bb083a516f6be6c2ba16b55b7f81