[INFO] fetching crate core_io 0.1.20210325... [INFO] checking core_io-0.1.20210325 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384 [INFO] extracting crate core_io 0.1.20210325 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate core_io 0.1.20210325 on toolchain 506512391b1a75ae450d36c9420978402a91abcc [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate core_io 0.1.20210325 [INFO] finished tweaking crates.io crate core_io 0.1.20210325 [INFO] tweaked toml for crates.io crate core_io 0.1.20210325 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 3 packages to latest compatible versions [INFO] [stderr] Adding rustc_version v0.1.7 (latest: v0.4.0) [INFO] [stderr] Adding semver v0.1.20 (latest: v1.0.23) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded semver v0.1.20 [INFO] [stderr] Downloaded rustc_version v0.1.7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9cb5ec13cc3d5aff554d58fe405ca7218474f5ce508238b7cd46b966ad5147d3 [INFO] running `Command { std: "docker" "start" "-a" "9cb5ec13cc3d5aff554d58fe405ca7218474f5ce508238b7cd46b966ad5147d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9cb5ec13cc3d5aff554d58fe405ca7218474f5ce508238b7cd46b966ad5147d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9cb5ec13cc3d5aff554d58fe405ca7218474f5ce508238b7cd46b966ad5147d3", kill_on_drop: false }` [INFO] [stdout] 9cb5ec13cc3d5aff554d58fe405ca7218474f5ce508238b7cd46b966ad5147d3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9c523d11c2c84f8a41d0a43dd237e10f5827371a2b73e7c29c2920cb45175a55 [INFO] running `Command { std: "docker" "start" "-a" "9c523d11c2c84f8a41d0a43dd237e10f5827371a2b73e7c29c2920cb45175a55", kill_on_drop: false }` [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Compiling core_io v0.1.20210325 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `core_io v0.1.20210325 (/opt/rustwide/workdir)` [INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation. [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/core_io-e046b7e4ae24a641/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at build.rs:73:69: [INFO] [stderr] Unknown compiler version, upgrade core_io? [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x5569415598e5 - std::backtrace_rs::backtrace::libunwind::trace::h876d7c806a499a4c [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5 [INFO] [stderr] 1: 0x5569415598e5 - std::backtrace_rs::backtrace::trace_unsynchronized::h93aa6ac20204363f [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x5569415598e5 - std::sys_common::backtrace::_print_fmt::haa4d06348037420c [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stderr] 3: 0x5569415598e5 - ::fmt::hb19a1068483db389 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stderr] 4: 0x55694157b62b - core::fmt::rt::Argument::fmt::he1186800a1f8dba1 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/fmt/rt.rs:165:63 [INFO] [stderr] 5: 0x55694157b62b - core::fmt::write::h93b97d526ac83ab7 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/fmt/mod.rs:1169:21 [INFO] [stderr] 6: 0x55694155730f - std::io::Write::write_fmt::h5b8b8a434bcca5dd [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/io/mod.rs:1835:15 [INFO] [stderr] 7: 0x5569415596be - std::sys_common::backtrace::_print::h68eb04d9824256f0 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stderr] 8: 0x5569415596be - std::sys_common::backtrace::print::h9c98f0d9c4306586 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stderr] 9: 0x55694155aa29 - std::panicking::default_hook::{{closure}}::hcf6830dc400daae4 [INFO] [stderr] 10: 0x55694155a76d - std::panicking::default_hook::h483615856e3a5cc0 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:298:9 [INFO] [stderr] 11: 0x55694155aee3 - std::panicking::rust_panic_with_hook::h36ebc998f351e5fd [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:795:13 [INFO] [stderr] 12: 0x55694155adc4 - std::panicking::begin_panic_handler::{{closure}}::h686207a93492b797 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:664:13 [INFO] [stderr] 13: 0x556941559da9 - std::sys_common::backtrace::__rust_end_short_backtrace::h2e37e6bf5aac538a [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stderr] 14: 0x55694155aaf7 - rust_begin_unwind [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:652:5 [INFO] [stderr] 15: 0x55694157a7c3 - core::panicking::panic_fmt::heae5d8e5e3703b89 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/panicking.rs:72:14 [INFO] [stderr] 16: 0x55694157a95c - core::panicking::panic_display::h98b8c8030581323c [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/panicking.rs:262:5 [INFO] [stderr] 17: 0x55694157a56c - core::option::expect_failed::h75d16d6f0c14e1dc [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/option.rs:1994:5 [INFO] [stderr] 18: 0x556941528c2a - core::option::Option::expect::h56a4085dd9df254a [INFO] [stderr] 19: 0x55694152ab0f - build_script_build::main::h17cd97c4f29eb582 [INFO] [stderr] 20: 0x5569415278f3 - core::ops::function::FnOnce::call_once::h4c0df6a1b62961f3 [INFO] [stderr] 21: 0x556941527056 - std::sys_common::backtrace::__rust_begin_short_backtrace::habf1a03a9aa9abfe [INFO] [stderr] 22: 0x5569415273b9 - std::rt::lang_start::{{closure}}::hf9c61200c45cb67c [INFO] [stderr] 23: 0x556941553f2d - core::ops::function::impls:: for &F>::call_once::h75d0a4fe40296b94 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/ops/function.rs:284:13 [INFO] [stderr] 24: 0x556941553f2d - std::panicking::try::do_call::ha27ca65264b021a4 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:559:40 [INFO] [stderr] 25: 0x556941553f2d - std::panicking::try::h901e100a17b3cd54 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:523:19 [INFO] [stderr] 26: 0x556941553f2d - std::panic::catch_unwind::h13d256f1691dfb07 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panic.rs:149:14 [INFO] [stderr] 27: 0x556941553f2d - std::rt::lang_start_internal::{{closure}}::hdf5a5a26190e1fd8 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/rt.rs:141:48 [INFO] [stderr] 28: 0x556941553f2d - std::panicking::try::do_call::h3a8fb98242ec30e5 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:559:40 [INFO] [stderr] 29: 0x556941553f2d - std::panicking::try::h881801cd3cb8ba77 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:523:19 [INFO] [stderr] 30: 0x556941553f2d - std::panic::catch_unwind::he14d380083644433 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panic.rs:149:14 [INFO] [stderr] 31: 0x556941553f2d - std::rt::lang_start_internal::hf560e7575b65e65f [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/rt.rs:141:20 [INFO] [stderr] 32: 0x556941527397 - std::rt::lang_start::h9bfe1e037da90dc5 [INFO] [stderr] 33: 0x55694152b985 - main [INFO] [stderr] 34: 0x7f208e6d0d90 - [INFO] [stderr] 35: 0x7f208e6d0e40 - __libc_start_main [INFO] [stderr] 36: 0x556941526eb5 - _start [INFO] [stderr] 37: 0x0 - [INFO] running `Command { std: "docker" "inspect" "9c523d11c2c84f8a41d0a43dd237e10f5827371a2b73e7c29c2920cb45175a55", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c523d11c2c84f8a41d0a43dd237e10f5827371a2b73e7c29c2920cb45175a55", kill_on_drop: false }` [INFO] [stdout] 9c523d11c2c84f8a41d0a43dd237e10f5827371a2b73e7c29c2920cb45175a55