[INFO] fetching crate core_io 0.1.20190701... [INFO] checking core_io-0.1.20190701 against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472 [INFO] extracting crate core_io 0.1.20190701 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate core_io 0.1.20190701 on toolchain c9228570668803e3e6402770d55f23a12c9ae686 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "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-6/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 07fd8cf068f1ef9a505d0d1b575e351f19f870dfcb1cd5bdb5e5b7549fdb6419 [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" "07fd8cf068f1ef9a505d0d1b575e351f19f870dfcb1cd5bdb5e5b7549fdb6419", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "07fd8cf068f1ef9a505d0d1b575e351f19f870dfcb1cd5bdb5e5b7549fdb6419", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07fd8cf068f1ef9a505d0d1b575e351f19f870dfcb1cd5bdb5e5b7549fdb6419", kill_on_drop: false }` [INFO] [stdout] 07fd8cf068f1ef9a505d0d1b575e351f19f870dfcb1cd5bdb5e5b7549fdb6419 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 81b7a89cb0cb4e6dd324c2d74491a5a8b0f889c72bf41af84cd59e50bba1b292 [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" "81b7a89cb0cb4e6dd324c2d74491a5a8b0f889c72bf41af84cd59e50bba1b292", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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-3c9d997b075d3cfa/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: 0x5650b54ecbe0 - std::backtrace_rs::backtrace::libunwind::trace::h746c3e9529d524bc [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x5650b54ecbe0 - std::backtrace_rs::backtrace::trace_unsynchronized::h86340908ff889faa [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x5650b54ecbe0 - std::sys_common::backtrace::_print_fmt::h43f85f9b18230404 [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x5650b54ecbe0 - ::fmt::hc132ae1a5b5aa7cd [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x5650b550a44c - core::fmt::write::hdf023a0036d2a25f [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/core/src/fmt/mod.rs:1078:17 [INFO] [stderr] 5: 0x5650b54ea062 - std::io::Write::write_fmt::h8580846154bcb66a [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/io/mod.rs:1519:15 [INFO] [stderr] 6: 0x5650b54ee935 - std::sys_common::backtrace::_print::h7ee55fed88d107a3 [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x5650b54ee935 - std::sys_common::backtrace::print::h54a7d3e52a524177 [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x5650b54ee935 - std::panicking::default_hook::{{closure}}::h60921e857bf55a40 [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x5650b54ee48a - std::panicking::default_hook::hf0f9afb1017317fc [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x5650b54ef0d1 - std::panicking::rust_panic_with_hook::h8d66bf42b407aaea [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:591:17 [INFO] [stderr] 11: 0x5650b54eec17 - std::panicking::begin_panic_handler::{{closure}}::hde71edcd925d0c5e [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:497:13 [INFO] [stderr] 12: 0x5650b54ed09c - std::sys_common::backtrace::__rust_end_short_backtrace::h8a3c7d6cea578919 [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x5650b54eeb79 - rust_begin_unwind [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:493:5 [INFO] [stderr] 14: 0x5650b55097f1 - core::panicking::panic_fmt::h20225113c4a2f8fd [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/core/src/panicking.rs:92:14 [INFO] [stderr] 15: 0x5650b5509583 - core::option::expect_failed::h8be1ca96ca0d69ca [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/core/src/option.rs:1260:5 [INFO] [stderr] 16: 0x5650b54bbdf1 - core::option::Option::expect::hbb012ce0a1b7841f [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/core/src/option.rs:349:21 [INFO] [stderr] 17: 0x5650b54b72f4 - build_script_build::main::h8d152481f86ba820 [INFO] [stderr] at /opt/rustwide/workdir/build.rs:73:4 [INFO] [stderr] 18: 0x5650b54bb30b - core::ops::function::FnOnce::call_once::h23a37bcec9ce84c3 [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 19: 0x5650b54bc06e - std::sys_common::backtrace::__rust_begin_short_backtrace::hd758d3aec902691d [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 20: 0x5650b54bc191 - std::rt::lang_start::{{closure}}::ha481f10c0b284939 [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/rt.rs:66:18 [INFO] [stderr] 21: 0x5650b54ef4f7 - core::ops::function::impls:: for &F>::call_once::h54c39b9b8451875a [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 22: 0x5650b54ef4f7 - std::panicking::try::do_call::hcdfba51a06e21b42 [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:379:40 [INFO] [stderr] 23: 0x5650b54ef4f7 - std::panicking::try::hb36953ccd24f930d [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:343:19 [INFO] [stderr] 24: 0x5650b54ef4f7 - std::panic::catch_unwind::hbb374cd03beb3824 [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panic.rs:396:14 [INFO] [stderr] 25: 0x5650b54ef4f7 - std::rt::lang_start_internal::h97dca9624db2aa85 [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/rt.rs:51:25 [INFO] [stderr] 26: 0x5650b54bc167 - std::rt::lang_start::hfaa761d513415eb2 [INFO] [stderr] at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/rt.rs:65:5 [INFO] [stderr] 27: 0x5650b54b7f1a - main [INFO] [stderr] 28: 0x7f4e3315f0b3 - __libc_start_main [INFO] [stderr] 29: 0x5650b54b50ae - _start [INFO] [stderr] 30: 0x0 - [INFO] running `Command { std: "docker" "inspect" "81b7a89cb0cb4e6dd324c2d74491a5a8b0f889c72bf41af84cd59e50bba1b292", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81b7a89cb0cb4e6dd324c2d74491a5a8b0f889c72bf41af84cd59e50bba1b292", kill_on_drop: false }` [INFO] [stdout] 81b7a89cb0cb4e6dd324c2d74491a5a8b0f889c72bf41af84cd59e50bba1b292