[INFO] fetching crate core_io 0.1.20190701... [INFO] checking core_io-0.1.20190701 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781 [INFO] extracting crate core_io 0.1.20190701 into /workspace/builds/worker-3/source [INFO] validating manifest of crates.io crate core_io 0.1.20190701 on toolchain 195ad4830e11a544391abe296b146450dea8411b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-3/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 30d8278e346fae938a55d908e1e1d0fe67bc6d0ea948e2685cb5812adc124dfc [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" "30d8278e346fae938a55d908e1e1d0fe67bc6d0ea948e2685cb5812adc124dfc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "30d8278e346fae938a55d908e1e1d0fe67bc6d0ea948e2685cb5812adc124dfc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "30d8278e346fae938a55d908e1e1d0fe67bc6d0ea948e2685cb5812adc124dfc", kill_on_drop: false }` [INFO] [stdout] 30d8278e346fae938a55d908e1e1d0fe67bc6d0ea948e2685cb5812adc124dfc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ad38ced99d23e64d1cd72c53ec7fc51a1fcc6bc6e7d4a546bd9ba28995568271 [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" "ad38ced99d23e64d1cd72c53ec7fc51a1fcc6bc6e7d4a546bd9ba28995568271", kill_on_drop: false }` [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Compiling core_io v0.1.20190701 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> build.rs:15:37 [INFO] [stdout] | [INFO] [stdout] 15 | const P2: &'static str = r#"",""#; ; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [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-6924459115f11547/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: 0x55657bc920f0 - std::backtrace_rs::backtrace::libunwind::trace::hfe3b1cace85e87d8 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x55657bc920f0 - std::backtrace_rs::backtrace::trace_unsynchronized::h542330af06479043 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x55657bc920f0 - std::sys_common::backtrace::_print_fmt::h6b88726367858985 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x55657bc920f0 - ::fmt::hcd76ce6b485adbea [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x55657bcabc3f - core::fmt::write::h127419eb46f2ecc9 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/core/src/fmt/mod.rs:1092:17 [INFO] [stderr] 5: 0x55657bc8fc22 - std::io::Write::write_fmt::h0facb64ef2e7f5d8 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/io/mod.rs:1567:15 [INFO] [stderr] 6: 0x55657bc93df5 - std::sys_common::backtrace::_print::h7bf1633ea5421f7b [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x55657bc93df5 - std::sys_common::backtrace::print::h5cc4d09049928ba5 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x55657bc93df5 - std::panicking::default_hook::{{closure}}::h9e84dc005bfc9fc7 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x55657bc938a3 - std::panicking::default_hook::h123278a03b1f796b [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x55657bc943fd - std::panicking::rust_panic_with_hook::h4040631aa6c7bc27 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:591:17 [INFO] [stderr] 11: 0x55657bc93f97 - std::panicking::begin_panic_handler::{{closure}}::h02a17b22ac092d08 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:497:13 [INFO] [stderr] 12: 0x55657bc925ac - std::sys_common::backtrace::__rust_end_short_backtrace::h6063b024443b5852 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x55657bc93ef9 - rust_begin_unwind [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:493:5 [INFO] [stderr] 14: 0x55657bc582a1 - core::panicking::panic_fmt::h5322a082d19786c3 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/core/src/panicking.rs:92:14 [INFO] [stderr] 15: 0x55657bc58103 - core::option::expect_failed::ha46361805fef8730 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/core/src/option.rs:1321:5 [INFO] [stderr] 16: 0x55657bc5fb9c - core::option::Option::expect::h52036b0b9ad8c20b [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/core/src/option.rs:349:21 [INFO] [stderr] 17: 0x55657bc5ddf2 - build_script_build::main::h20ff62b842a84cf4 [INFO] [stderr] at /opt/rustwide/workdir/build.rs:73:4 [INFO] [stderr] 18: 0x55657bc5eb6b - core::ops::function::FnOnce::call_once::hfeda0d70a8351adb [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 19: 0x55657bc6039e - std::sys_common::backtrace::__rust_begin_short_backtrace::h97e072486dc65ef6 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 20: 0x55657bc60421 - std::rt::lang_start::{{closure}}::h5420420f68792f5d [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/rt.rs:66:18 [INFO] [stderr] 21: 0x55657bc947fa - core::ops::function::impls:: for &F>::call_once::h3695a3fbbe44c001 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 22: 0x55657bc947fa - std::panicking::try::do_call::he9f4b5f706c7e58d [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:379:40 [INFO] [stderr] 23: 0x55657bc947fa - std::panicking::try::h789d448ccf87fe6d [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:343:19 [INFO] [stderr] 24: 0x55657bc947fa - std::panic::catch_unwind::h7a6b31f16004913a [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panic.rs:431:14 [INFO] [stderr] 25: 0x55657bc947fa - std::rt::lang_start_internal::h80897b41b254b288 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/rt.rs:51:25 [INFO] [stderr] 26: 0x55657bc60400 - std::rt::lang_start::h1e58eacb2be73b63 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/rt.rs:65:5 [INFO] [stderr] 27: 0x55657bc5ea6c - main [INFO] [stderr] 28: 0x7f8764b860b3 - __libc_start_main [INFO] [stderr] 29: 0x55657bc5890e - _start [INFO] [stderr] 30: 0x0 - [INFO] running `Command { std: "docker" "inspect" "ad38ced99d23e64d1cd72c53ec7fc51a1fcc6bc6e7d4a546bd9ba28995568271", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ad38ced99d23e64d1cd72c53ec7fc51a1fcc6bc6e7d4a546bd9ba28995568271", kill_on_drop: false }` [INFO] [stdout] ad38ced99d23e64d1cd72c53ec7fc51a1fcc6bc6e7d4a546bd9ba28995568271