[INFO] fetching crate polychat-core 0.1.5... [INFO] testing polychat-core-0.1.5 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1 [INFO] extracting crate polychat-core 0.1.5 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate polychat-core 0.1.5 [INFO] finished tweaking crates.io crate polychat-core 0.1.5 [INFO] tweaked toml for crates.io crate polychat-core 0.1.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate polychat-core 0.1.5 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 53 packages to latest compatible versions [INFO] [stderr] Adding libloading v0.7.4 (available: v0.8.9) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 63f55cdc1bb2cfa28ad8493cbfbdf24dfbd4438a3c2a135e2a28a12de93344ac [INFO] running `Command { std: "docker" "start" "-a" "63f55cdc1bb2cfa28ad8493cbfbdf24dfbd4438a3c2a135e2a28a12de93344ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "63f55cdc1bb2cfa28ad8493cbfbdf24dfbd4438a3c2a135e2a28a12de93344ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "63f55cdc1bb2cfa28ad8493cbfbdf24dfbd4438a3c2a135e2a28a12de93344ac", kill_on_drop: false }` [INFO] [stdout] 63f55cdc1bb2cfa28ad8493cbfbdf24dfbd4438a3c2a135e2a28a12de93344ac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fdfa8fe6aba2c5b5aaea8951138d788c3355f34750715f3f4383880a50be5ca2 [INFO] running `Command { std: "docker" "start" "-a" "fdfa8fe6aba2c5b5aaea8951138d788c3355f34750715f3f4383880a50be5ca2", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling unicode-width v0.1.14 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling libc v0.2.176 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling cbindgen v0.20.0 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling libloading v0.7.4 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling getrandom v0.3.3 [INFO] [stderr] Compiling tempfile v3.23.0 [INFO] [stderr] Compiling clap v2.34.0 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling polychat-plugin v0.3.1 [INFO] [stderr] error: failed to run custom build command for `polychat-plugin v0.3.1` [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/polychat-plugin-807c60316f79a1f4/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] [INFO] [stderr] thread 'main' (436) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/polychat-plugin-0.3.1/build.rs:16:10: [INFO] [stderr] called `Result::unwrap()` on an `Err` value: CargoMetadata("/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/polychat-plugin-0.3.1/Cargo.toml", Metadata(Output { status: ExitStatus(unix_wait_status(25856)), stdout: "", stderr: " Updating crates.io index\nwarning: spurious network error (3 tries remaining): [6] Could not resolve hostname (Could not resolve host: index.crates.io)\nwarning: spurious network error (2 tries remaining): [6] Could not resolve hostname (Could not resolve host: index.crates.io)\nwarning: spurious network error (1 try remaining): [6] Could not resolve hostname (Could not resolve host: index.crates.io)\nerror: failed to get `libc` as a dependency of package `polychat-plugin v0.3.1 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/polychat-plugin-0.3.1)`\n\nCaused by:\n download of config.json failed\n\nCaused by:\n failed to download from `https://index.crates.io/config.json`\n\nCaused by:\n [6] Could not resolve hostname (Could not resolve host: index.crates.io)\n" })) [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x5795877845e2 - std::backtrace_rs::backtrace::libunwind::trace::h22a6a535a50603c6 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stderr] 1: 0x5795877845e2 - std::backtrace_rs::backtrace::trace_unsynchronized::h2503a4f30dbfbaa2 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stderr] 2: 0x5795877845e2 - std::sys::backtrace::_print_fmt::hec54e31f36456895 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:66:9 [INFO] [stderr] 3: 0x5795877845e2 - ::fmt::hb1988e8b50fa5f19 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:39:26 [INFO] [stderr] 4: 0x57958779687f - core::fmt::rt::Argument::fmt::h3118a66e1a57a586 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/fmt/rt.rs:173:76 [INFO] [stderr] 5: 0x57958779687f - core::fmt::write::hcd056e06a609f600 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/fmt/mod.rs:1468:25 [INFO] [stderr] 6: 0x579587755fe1 - std::io::default_write_fmt::h45f0f9de0268fdcb [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/io/mod.rs:639:11 [INFO] [stderr] 7: 0x579587755fe1 - std::io::Write::write_fmt::hc685c74e0b8ce55d [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/io/mod.rs:1954:13 [INFO] [stderr] 8: 0x579587760472 - std::sys::backtrace::BacktraceLock::print::h69f50ba7cfff8317 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:42:9 [INFO] [stderr] 9: 0x579587762a1f - std::panicking::default_hook::{{closure}}::hfa978eb2255ab3ab [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:301:27 [INFO] [stderr] 10: 0x579587762879 - std::panicking::default_hook::h09da2eaf8f1deadd [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:328:9 [INFO] [stderr] 11: 0x579587763155 - std::panicking::panic_with_hook::h13c40d280d130fd3 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:834:13 [INFO] [stderr] 12: 0x579587762f3a - std::panicking::panic_handler::{{closure}}::hd79d22e8a1d3b951 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:707:13 [INFO] [stderr] 13: 0x5795877605b9 - std::sys::backtrace::__rust_end_short_backtrace::h83414d1ec69cf3a6 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:174:18 [INFO] [stderr] 14: 0x57958774983d - __rustc[b78aa6c7b08e5dc4]::rust_begin_unwind [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:698:5 [INFO] [stderr] 15: 0x5795877a0820 - core::panicking::panic_fmt::h326b75cf8ee01b13 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/panicking.rs:78:14 [INFO] [stderr] 16: 0x57958779f556 - core::result::unwrap_failed::h38baee32fdec5ac8 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/result.rs:1855:5 [INFO] [stderr] 17: 0x5795874530c4 - build_script_build::main::h7473694dfc8fa867 [INFO] [stderr] 18: 0x579587459e13 - core::ops::function::FnOnce::call_once::he5e78a8b12fe79e3 [INFO] [stderr] 19: 0x579587439b16 - std::sys::backtrace::__rust_begin_short_backtrace::hf85491043fdfa9be [INFO] [stderr] 20: 0x579587468339 - std::rt::lang_start::{{closure}}::h2fc5571dc00e556d [INFO] [stderr] 21: 0x579587757250 - core::ops::function::impls:: for &F>::call_once::h387c5546b57ddfde [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/ops/function.rs:287:21 [INFO] [stderr] 22: 0x579587757250 - std::panicking::catch_unwind::do_call::hf9fdd250c001d1cd [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:590:40 [INFO] [stderr] 23: 0x579587757250 - std::panicking::catch_unwind::hc213e1339e7313f3 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:553:19 [INFO] [stderr] 24: 0x579587757250 - std::panic::catch_unwind::h7e2e13142bd98e67 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panic.rs:359:14 [INFO] [stderr] 25: 0x579587757250 - std::rt::lang_start_internal::{{closure}}::ha8eea67def213c83 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/rt.rs:175:24 [INFO] [stderr] 26: 0x579587757250 - std::panicking::catch_unwind::do_call::hc6f04b090be4f56e [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:590:40 [INFO] [stderr] 27: 0x579587757250 - std::panicking::catch_unwind::hfb8ae23b2e34f7c2 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:553:19 [INFO] [stderr] 28: 0x579587757250 - std::panic::catch_unwind::hf2cef20feb3addd6 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panic.rs:359:14 [INFO] [stderr] 29: 0x579587757250 - std::rt::lang_start_internal::h1ca864a6b9355c57 [INFO] [stderr] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/rt.rs:171:5 [INFO] [stderr] 30: 0x579587468321 - std::rt::lang_start::h3c0e0c978e9d05d0 [INFO] [stderr] 31: 0x579587458c55 - main [INFO] [stderr] 32: 0x789468f381ca - [INFO] [stderr] 33: 0x789468f3828b - __libc_start_main [INFO] [stderr] 34: 0x5795873392c5 - _start [INFO] [stderr] 35: 0x0 - [INFO] running `Command { std: "docker" "inspect" "fdfa8fe6aba2c5b5aaea8951138d788c3355f34750715f3f4383880a50be5ca2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fdfa8fe6aba2c5b5aaea8951138d788c3355f34750715f3f4383880a50be5ca2", kill_on_drop: false }` [INFO] [stdout] fdfa8fe6aba2c5b5aaea8951138d788c3355f34750715f3f4383880a50be5ca2