[INFO] fetching crate ssh_tools 0.1.0... [INFO] checking ssh_tools-0.1.0 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041 [INFO] extracting crate ssh_tools 0.1.0 into /workspace/builds/worker-20/source [INFO] validating manifest of crates.io crate ssh_tools 0.1.0 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate ssh_tools 0.1.0 [INFO] finished tweaking crates.io crate ssh_tools 0.1.0 [INFO] tweaked toml for crates.io crate ssh_tools 0.1.0 written to /workspace/builds/worker-20/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1ac3c63ec38c20af45e617fce3f827e94194261126c254737e9a7ef90a7224ca [INFO] running `Command { std: "docker" "start" "-a" "1ac3c63ec38c20af45e617fce3f827e94194261126c254737e9a7ef90a7224ca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1ac3c63ec38c20af45e617fce3f827e94194261126c254737e9a7ef90a7224ca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ac3c63ec38c20af45e617fce3f827e94194261126c254737e9a7ef90a7224ca", kill_on_drop: false }` [INFO] [stdout] 1ac3c63ec38c20af45e617fce3f827e94194261126c254737e9a7ef90a7224ca [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 29314502a7796cba68958b630a7fbc6919a4cf8a00b56263df539bf762e947ef [INFO] running `Command { std: "docker" "start" "-a" "29314502a7796cba68958b630a7fbc6919a4cf8a00b56263df539bf762e947ef", kill_on_drop: false }` [INFO] [stderr] error: failed to run `rustc` to learn about target-specific information [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc - --crate-name ___ --print=file-names --cap-lints=forbid --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro --print=sysroot --print=cfg` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'rustc' panicked at 'failed to create jobserver: Custom { kind: PermissionDenied, error: "failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock" }', compiler/rustc_data_structures/src/jobserver.rs:23:38 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7f627df39630 - std::backtrace_rs::backtrace::libunwind::trace::h0197874f43e7190f [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x7f627df39630 - std::backtrace_rs::backtrace::trace_unsynchronized::hfdfd566bbbda6f2d [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7f627df39630 - std::sys_common::backtrace::_print_fmt::hb3b4707c15b032a1 [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x7f627df39630 - ::fmt::had1dceac8b072f88 [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x7f627dfa7bfc - core::fmt::write::h9a6d9c74526a6c1b [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/core/src/fmt/mod.rs:1117:17 [INFO] [stderr] 5: 0x7f627df2ae85 - std::io::Write::write_fmt::h05c3bb2bc83b8ed0 [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/io/mod.rs:1667:15 [INFO] [stderr] 6: 0x7f627df3cbfb - std::sys_common::backtrace::_print::h10f0826b2a586b58 [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x7f627df3cbfb - std::sys_common::backtrace::print::h0d4242fbd1ac3eb6 [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x7f627df3cbfb - std::panicking::default_hook::{{closure}}::h275ead39fe8b8e2a [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:210:50 [INFO] [stderr] 9: 0x7f627df3c770 - std::panicking::default_hook::h5505d4d90f5984d9 [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:227:9 [INFO] [stderr] 10: 0x7f627e71d3f1 - rustc_driver::DEFAULT_HOOK::{{closure}}::{{closure}}::hee2ebc973f73a8d6 [INFO] [stderr] 11: 0x7f627df3d429 - std::panicking::rust_panic_with_hook::h2f8980d1d9fd4ca0 [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:628:17 [INFO] [stderr] 12: 0x7f627df3cee0 - std::panicking::begin_panic_handler::{{closure}}::hd87853ef7e40ae97 [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:521:13 [INFO] [stderr] 13: 0x7f627df39b34 - std::sys_common::backtrace::__rust_end_short_backtrace::hcab167aa940694a2 [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 14: 0x7f627df3ce49 - rust_begin_unwind [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:517:5 [INFO] [stderr] 15: 0x7f627df08791 - core::panicking::panic_fmt::hcf5f6d96e1dd7099 [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/core/src/panicking.rs:93:14 [INFO] [stderr] 16: 0x7f627df08883 - core::result::unwrap_failed::he898b02f57993c42 [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/core/src/result.rs:1617:5 [INFO] [stderr] 17: 0x7f6280b9458e - core::ops::function::FnOnce::call_once::hb8a895ec037a41bd [INFO] [stderr] 18: 0x7f6280b9483d - std::sync::once::Once::call_once_force::{{closure}}::hf22fcb7786575799 [INFO] [stderr] 19: 0x7f627df0643c - std::sync::once::Once::call_inner::hc2acff14d719784d [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/sync/once.rs:418:21 [INFO] [stderr] 20: 0x7f6280b94634 - rustc_data_structures::jobserver::client::h6a333a6ac68471d6 [INFO] [stderr] 21: 0x7f6280b4ce1e - rustc_session::session::build_session::h9a6e984c28ebf5d1 [INFO] [stderr] 22: 0x7f6280223c99 - rustc_interface::util::create_session::h34b8795d6c3fb4bb [INFO] [stderr] 23: 0x7f62801f0ce0 - rustc_interface::interface::create_compiler_and_run::hbb51e06a6bec0cbf [INFO] [stderr] 24: 0x7f62801e2b79 - scoped_tls::ScopedKey::set::hecbcef0aa7ef3aaf [INFO] [stderr] 25: 0x7f62801df01a - std::sys_common::backtrace::__rust_begin_short_backtrace::h613e6113ac84bdcd [INFO] [stderr] 26: 0x7f62801de355 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h44574c2a5516ec83 [INFO] [stderr] 27: 0x7f627df4a0f3 - as core::ops::function::FnOnce>::call_once::h9c4443ed82ca1eae [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/alloc/src/boxed.rs:1636:9 [INFO] [stderr] 28: 0x7f627df4a0f3 - as core::ops::function::FnOnce>::call_once::h4b334c81001270ca [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/alloc/src/boxed.rs:1636:9 [INFO] [stderr] 29: 0x7f627df4a0f3 - std::sys::unix::thread::Thread::new::thread_start::h092d15d6be9ed8c7 [INFO] [stderr] at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/sys/unix/thread.rs:106:17 [INFO] [stderr] 30: 0x7f627de65609 - start_thread [INFO] [stderr] 31: 0x7f627dd79293 - clone [INFO] [stderr] 32: 0x0 - [INFO] [stderr] [INFO] [stderr] error: internal compiler error: unexpected panic [INFO] [stderr] [INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md [INFO] [stderr] [INFO] [stderr] note: rustc 1.56.0-nightly (8007b506a 2021-08-14) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro [INFO] [stderr] [INFO] [stderr] query stack during panic: [INFO] [stderr] end of query stack [INFO] running `Command { std: "docker" "inspect" "29314502a7796cba68958b630a7fbc6919a4cf8a00b56263df539bf762e947ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "29314502a7796cba68958b630a7fbc6919a4cf8a00b56263df539bf762e947ef", kill_on_drop: false }` [INFO] [stdout] 29314502a7796cba68958b630a7fbc6919a4cf8a00b56263df539bf762e947ef