[INFO] fetching crate core_io 0.1.20190701... [INFO] documenting core_io-0.1.20190701 against beta-2020-08-29 for beta-1.47-rustdoc-1 [INFO] extracting crate core_io 0.1.20190701 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate core_io 0.1.20190701 on toolchain beta-2020-08-29 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 369c9bd211841e97878e493fbb7f34eac4c1987c44f576e8fad12e8816baa7bb [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "369c9bd211841e97878e493fbb7f34eac4c1987c44f576e8fad12e8816baa7bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "369c9bd211841e97878e493fbb7f34eac4c1987c44f576e8fad12e8816baa7bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "369c9bd211841e97878e493fbb7f34eac4c1987c44f576e8fad12e8816baa7bb", kill_on_drop: false }` [INFO] [stdout] 369c9bd211841e97878e493fbb7f34eac4c1987c44f576e8fad12e8816baa7bb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 6edd32f07139bc7b5663303f3911d1c7328eb5d80a31991423a7c9d1d423b39f [INFO] running `Command { std: "docker" "start" "-a" "6edd32f07139bc7b5663303f3911d1c7328eb5d80a31991423a7c9d1d423b39f", kill_on_drop: false }` [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-16fdc6f54fb67db7/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'Unknown compiler version, upgrade core_io?', build.rs:73:69 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55b55096ad20 - std::backtrace_rs::backtrace::libunwind::trace::h9e3e6d9b3369e699 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96 [INFO] [stderr] 1: 0x55b55096ad20 - std::backtrace_rs::backtrace::trace_unsynchronized::he58aba3ac08ed12a [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/../../backtrace/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55b55096ad20 - std::sys_common::backtrace::_print_fmt::hbbbd4c92d537cef4 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/sys_common/backtrace.rs:79 [INFO] [stderr] 3: 0x55b55096ad20 - ::fmt::h80c2ae080004cc83 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/sys_common/backtrace.rs:58 [INFO] [stderr] 4: 0x55b550987cdc - core::fmt::write::h0c11e16fd03fe660 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/core/src/fmt/mod.rs:1082 [INFO] [stderr] 5: 0x55b550968577 - std::io::Write::write_fmt::h2e2072ff86131fcd [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/io/mod.rs:1514 [INFO] [stderr] 6: 0x55b55096ce10 - std::sys_common::backtrace::_print::h165e6476adb4cb58 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/sys_common/backtrace.rs:61 [INFO] [stderr] 7: 0x55b55096ce10 - std::sys_common::backtrace::print::hbbfa32a92cd1fc34 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/sys_common/backtrace.rs:48 [INFO] [stderr] 8: 0x55b55096ce10 - std::panicking::default_hook::{{closure}}::h3a02067ca7f64068 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/panicking.rs:200 [INFO] [stderr] 9: 0x55b55096cb5c - std::panicking::default_hook::ha3137d6f4e961fe2 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/panicking.rs:219 [INFO] [stderr] 10: 0x55b55096d473 - std::panicking::rust_panic_with_hook::he6505c3b9d82db8b [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/panicking.rs:569 [INFO] [stderr] 11: 0x55b55096d049 - std::panicking::begin_panic_handler::{{closure}}::h4aa640a9e8494520 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/panicking.rs:476 [INFO] [stderr] 12: 0x55b55096b18c - std::sys_common::backtrace::__rust_end_short_backtrace::h85d2ae6a90dead9c [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/sys_common/backtrace.rs:153 [INFO] [stderr] 13: 0x55b55096d009 - rust_begin_unwind [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/panicking.rs:475 [INFO] [stderr] 14: 0x55b550987001 - core::panicking::panic_fmt::hbf8b471a26c80149 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/core/src/panicking.rs:85 [INFO] [stderr] 15: 0x55b550986d93 - core::option::expect_failed::ha4390247d473d6e0 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/core/src/option.rs:1213 [INFO] [stderr] 16: 0x55b55093909c - core::option::Option::expect::h07f458639cd99e64 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/core/src/option.rs:333 [INFO] [stderr] 17: 0x55b5509353e5 - build_script_build::main::h09e897d663ef0b6b [INFO] [stderr] at /opt/rustwide/workdir/build.rs:73 [INFO] [stderr] 18: 0x55b55093769b - core::ops::function::FnOnce::call_once::h09222431565fa3e3 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/core/src/ops/function.rs:227 [INFO] [stderr] 19: 0x55b55093606e - std::sys_common::backtrace::__rust_begin_short_backtrace::hc9e04328f34fdd51 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/sys_common/backtrace.rs:137 [INFO] [stderr] 20: 0x55b55093a9e1 - std::rt::lang_start::{{closure}}::h8441242a634b9976 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/rt.rs:66 [INFO] [stderr] 21: 0x55b55096d871 - core::ops::function::impls:: for &F>::call_once::hdabbbe0d2c6ccde8 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/core/src/ops/function.rs:259 [INFO] [stderr] 22: 0x55b55096d871 - std::panicking::try::do_call::h0c8c1cd19bf9d385 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/panicking.rs:373 [INFO] [stderr] 23: 0x55b55096d871 - std::panicking::try::h357e78da017bc4a8 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/panicking.rs:337 [INFO] [stderr] 24: 0x55b55096d871 - std::panic::catch_unwind::h72f31b36adf61841 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/panic.rs:379 [INFO] [stderr] 25: 0x55b55096d871 - std::rt::lang_start_internal::h634502e153211333 [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/rt.rs:51 [INFO] [stderr] 26: 0x55b55093a9b7 - std::rt::lang_start::h55212ec6d2431e4a [INFO] [stderr] at /rustc/84b047bf64dfcfa12867781e9c23dfa4f2e6082c/library/std/src/rt.rs:65 [INFO] [stderr] 27: 0x55b550935f6a - main [INFO] [stderr] 28: 0x7efcf9ca60b3 - __libc_start_main [INFO] [stderr] 29: 0x55b5509330ae - _start [INFO] [stderr] 30: 0x0 - [INFO] running `Command { std: "docker" "inspect" "6edd32f07139bc7b5663303f3911d1c7328eb5d80a31991423a7c9d1d423b39f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6edd32f07139bc7b5663303f3911d1c7328eb5d80a31991423a7c9d1d423b39f", kill_on_drop: false }` [INFO] [stdout] 6edd32f07139bc7b5663303f3911d1c7328eb5d80a31991423a7c9d1d423b39f