[INFO] crate core_io 0.1.20190701 is already in cache [INFO] checking core_io-0.1.20190701 against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140 [INFO] extracting crate core_io 0.1.20190701 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate core_io 0.1.20190701 on toolchain ba72b15666b2491415aec703a02c2364fe5e2790 [INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "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-7/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 42c260072d253957219ef6c89b628837528b17b0ffaa0a77e4cd7a15f84bf33c [INFO] running `"docker" "start" "-a" "42c260072d253957219ef6c89b628837528b17b0ffaa0a77e4cd7a15f84bf33c"` [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-8cb9beb720ccde64/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: 0x560b248ddc14 - backtrace::backtrace::libunwind::trace::ha1e5a41b7d3ba0cf [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x560b248ddc14 - backtrace::backtrace::trace_unsynchronized::hf18b8c2f3ff8383d [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x560b248ddc14 - std::sys_common::backtrace::_print_fmt::hedecd22228c490e0 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x560b248ddc14 - ::fmt::h340395315789722a [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x560b249004dc - core::fmt::write::h0facfeb5ca58bc9e [INFO] [stderr] at src/libcore/fmt/mod.rs:1069 [INFO] [stderr] 5: 0x560b248db3f3 - std::io::Write::write_fmt::h497f72bb257eb6ad [INFO] [stderr] at src/libstd/io/mod.rs:1504 [INFO] [stderr] 6: 0x560b248e01d5 - std::sys_common::backtrace::_print::h6eaeb972ca7f43b9 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x560b248e01d5 - std::sys_common::backtrace::print::h263d3fc63b334d91 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x560b248e01d5 - std::panicking::default_hook::{{closure}}::h64185686d42f14f7 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x560b248dff12 - std::panicking::default_hook::h8d87bde850f1425e [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x560b248e07e2 - std::panicking::rust_panic_with_hook::h066ce8fe1fd73277 [INFO] [stderr] at src/libstd/panicking.rs:511 [INFO] [stderr] 11: 0x560b248e03cb - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:419 [INFO] [stderr] 12: 0x560b248ff8c1 - core::panicking::panic_fmt::h8cf5d83db03cfc35 [INFO] [stderr] at src/libcore/panicking.rs:111 [INFO] [stderr] 13: 0x560b248ff653 - core::option::expect_failed::h500ab5f594b0b4b3 [INFO] [stderr] at src/libcore/option.rs:1260 [INFO] [stderr] 14: 0x560b248b578d - core::option::Option::expect::h9abeb8e30d532ed7 [INFO] [stderr] at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libcore/option.rs:347 [INFO] [stderr] 15: 0x560b248b1469 - build_script_build::main::heedd2d9ecfca5876 [INFO] [stderr] at /opt/rustwide/workdir/build.rs:73 [INFO] [stderr] 16: 0x560b248b218b - std::rt::lang_start::{{closure}}::h451b7e2509ed4749 [INFO] [stderr] at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libstd/rt.rs:67 [INFO] [stderr] 17: 0x560b248e0c28 - std::rt::lang_start_internal::{{closure}}::hc6afa970c742b02f [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 18: 0x560b248e0c28 - std::panicking::try::do_call::h1c002a9a857ea77b [INFO] [stderr] at src/libstd/panicking.rs:331 [INFO] [stderr] 19: 0x560b248e0c28 - std::panicking::try::hccaa00db5e9f336f [INFO] [stderr] at src/libstd/panicking.rs:274 [INFO] [stderr] 20: 0x560b248e0c28 - std::panic::catch_unwind::h3fae1eafc1fa8e97 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 21: 0x560b248e0c28 - std::rt::lang_start_internal::hfc8f39fad1a9db56 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 22: 0x560b248b2167 - std::rt::lang_start::hab88a408ba94c699 [INFO] [stderr] at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libstd/rt.rs:67 [INFO] [stderr] 23: 0x560b248b1fda - main [INFO] [stderr] 24: 0x7fc7b8a52b97 - __libc_start_main [INFO] [stderr] 25: 0x560b248af09a - _start [INFO] [stderr] 26: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "42c260072d253957219ef6c89b628837528b17b0ffaa0a77e4cd7a15f84bf33c"` [INFO] running `"docker" "rm" "-f" "42c260072d253957219ef6c89b628837528b17b0ffaa0a77e4cd7a15f84bf33c"` [INFO] [stdout] 42c260072d253957219ef6c89b628837528b17b0ffaa0a77e4cd7a15f84bf33c