[INFO] cloning repository https://github.com/mathieuancelin/tcp-lb [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mathieuancelin/tcp-lb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmathieuancelin%2Ftcp-lb", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmathieuancelin%2Ftcp-lb'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 875880474d2a1b0fac7ecb8317df794380de9ead [INFO] checking mathieuancelin/tcp-lb against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmathieuancelin%2Ftcp-lb" "/workspace/builds/worker-19/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-19/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mathieuancelin/tcp-lb on toolchain 39e1293fce4b650061e85dda88aa428f726a8444 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mathieuancelin/tcp-lb [INFO] finished tweaking git repo https://github.com/mathieuancelin/tcp-lb [INFO] tweaked toml for git repo https://github.com/mathieuancelin/tcp-lb written to /workspace/builds/worker-19/source/Cargo.toml [INFO] crate git repo https://github.com/mathieuancelin/tcp-lb already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rand_os v0.1.2 [INFO] [stderr] Downloaded rand_isaac v0.1.1 [INFO] [stderr] Downloaded rdrand v0.4.0 [INFO] [stderr] Downloaded futures v0.1.25 [INFO] [stderr] Downloaded scopeguard v0.3.3 [INFO] [stderr] Downloaded rand_chacha v0.1.1 [INFO] [stderr] Downloaded regex v1.1.2 [INFO] [stderr] Downloaded redox_syscall v0.1.51 [INFO] [stderr] Downloaded argparse v0.2.2 [INFO] [stderr] Downloaded tokio-executor v0.1.6 [INFO] [stderr] Downloaded byteorder v1.3.1 [INFO] [stderr] Downloaded lazy_static v1.3.0 [INFO] [stderr] Downloaded tokio-sync v0.1.3 [INFO] [stderr] Downloaded bytes v0.4.11 [INFO] [stderr] Downloaded stable_deref_trait v1.1.1 [INFO] [stderr] Downloaded mio-uds v0.6.7 [INFO] [stderr] Downloaded kernel32-sys v0.2.2 [INFO] [stderr] Downloaded nodrop v0.1.13 [INFO] [stderr] Downloaded utf8-ranges v1.0.2 [INFO] [stderr] Downloaded thread_local v0.3.6 [INFO] [stderr] Downloaded env_logger v0.6.0 [INFO] [stderr] Downloaded redox_termios v0.1.1 [INFO] [stderr] Downloaded parking_lot v0.7.1 [INFO] [stderr] Downloaded rand_xorshift v0.1.1 [INFO] [stderr] Downloaded parking_lot_core v0.4.0 [INFO] [stderr] Downloaded dns-lookup v1.0.0 [INFO] [stderr] Downloaded humantime v1.2.0 [INFO] [stderr] Downloaded wincolor v1.0.1 [INFO] [stderr] Downloaded smallvec v0.6.9 [INFO] [stderr] Downloaded tokio-timer v0.2.10 [INFO] [stderr] Downloaded tokio-current-thread v0.1.5 [INFO] [stderr] Downloaded tokio-threadpool v0.1.12 [INFO] [stderr] Downloaded rand_jitter v0.1.3 [INFO] [stderr] Downloaded memchr v2.2.0 [INFO] [stderr] Downloaded atty v0.2.11 [INFO] [stderr] Downloaded winapi-build v0.1.1 [INFO] [stderr] Downloaded autocfg v0.1.2 [INFO] [stderr] Downloaded rand_hc v0.1.0 [INFO] [stderr] Downloaded tokio v0.1.16 [INFO] [stderr] Downloaded mio v0.6.16 [INFO] [stderr] Downloaded cloudabi v0.0.3 [INFO] [stderr] Downloaded crossbeam-utils v0.6.5 [INFO] [stderr] Downloaded tokio-codec v0.1.1 [INFO] [stderr] Downloaded libc v0.2.49 [INFO] [stderr] Downloaded fuchsia-cprng v0.1.1 [INFO] [stderr] Downloaded rand_pcg v0.1.2 [INFO] [stderr] Downloaded tokio-fs v0.1.6 [INFO] [stderr] Downloaded net2 v0.2.33 [INFO] [stderr] Downloaded lock_api v0.1.5 [INFO] [stderr] Downloaded bitflags v1.0.4 [INFO] [stderr] Downloaded winapi v0.3.6 [INFO] [stderr] Downloaded memoffset v0.2.1 [INFO] [stderr] Downloaded cfg-if v0.1.6 [INFO] [stderr] Downloaded ucd-util v0.1.3 [INFO] [stderr] Downloaded termcolor v1.0.4 [INFO] [stderr] Downloaded lazycell v1.2.1 [INFO] [stderr] Downloaded arrayvec v0.4.10 [INFO] [stderr] Downloaded crossbeam-queue v0.1.2 [INFO] [stderr] Downloaded miow v0.2.1 [INFO] [stderr] Downloaded num_cpus v1.10.0 [INFO] [stderr] Downloaded rand_core v0.3.1 [INFO] [stderr] Downloaded rand_core v0.4.0 [INFO] [stderr] Downloaded rand v0.6.5 [INFO] [stderr] Downloaded log v0.4.6 [INFO] [stderr] Downloaded tokio-io v0.1.12 [INFO] [stderr] Downloaded tokio-reactor v0.1.9 [INFO] [stderr] Downloaded tokio-uds v0.2.5 [INFO] [stderr] Downloaded socket2 v0.3.8 [INFO] [stderr] Downloaded termion v1.5.1 [INFO] [stderr] Downloaded quick-error v1.2.2 [INFO] [stderr] Downloaded aho-corasick v0.6.10 [INFO] [stderr] Downloaded regex-syntax v0.6.5 [INFO] [stderr] Downloaded winapi-util v0.1.2 [INFO] [stderr] Downloaded tokio-tcp v0.1.3 [INFO] [stderr] Downloaded crossbeam-epoch v0.7.1 [INFO] [stderr] Downloaded crossbeam-deque v0.7.1 [INFO] [stderr] Downloaded tokio-udp v0.1.3 [INFO] [stderr] Downloaded ws2_32-sys v0.2.1 [INFO] [stderr] Downloaded owning_ref v0.4.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d6cd43ab85a3de0a64abbb21a3c2614954dc3f02113eeff576c3305999bc9519 [INFO] running `Command { std: "docker" "start" "-a" "d6cd43ab85a3de0a64abbb21a3c2614954dc3f02113eeff576c3305999bc9519", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d6cd43ab85a3de0a64abbb21a3c2614954dc3f02113eeff576c3305999bc9519", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d6cd43ab85a3de0a64abbb21a3c2614954dc3f02113eeff576c3305999bc9519", kill_on_drop: false }` [INFO] [stdout] d6cd43ab85a3de0a64abbb21a3c2614954dc3f02113eeff576c3305999bc9519 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dbabb7ca0e560220705dce9cd244f26d0ff6f13ca732afecc3703c21124a1227 [INFO] running `Command { std: "docker" "start" "-a" "dbabb7ca0e560220705dce9cd244f26d0ff6f13ca732afecc3703c21124a1227", 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: 0x7ffb0077a630 - std::backtrace_rs::backtrace::libunwind::trace::h0197874f43e7190f [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x7ffb0077a630 - std::backtrace_rs::backtrace::trace_unsynchronized::hfdfd566bbbda6f2d [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7ffb0077a630 - std::sys_common::backtrace::_print_fmt::hb3b4707c15b032a1 [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x7ffb0077a630 - ::fmt::had1dceac8b072f88 [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x7ffb007e8bfc - core::fmt::write::h9a6d9c74526a6c1b [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/core/src/fmt/mod.rs:1117:17 [INFO] [stderr] 5: 0x7ffb0076be85 - std::io::Write::write_fmt::h05c3bb2bc83b8ed0 [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/io/mod.rs:1667:15 [INFO] [stderr] 6: 0x7ffb0077dbfb - std::sys_common::backtrace::_print::h10f0826b2a586b58 [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x7ffb0077dbfb - std::sys_common::backtrace::print::h0d4242fbd1ac3eb6 [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x7ffb0077dbfb - std::panicking::default_hook::{{closure}}::h275ead39fe8b8e2a [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:210:50 [INFO] [stderr] 9: 0x7ffb0077d770 - std::panicking::default_hook::h5505d4d90f5984d9 [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:227:9 [INFO] [stderr] 10: 0x7ffb00f5e3f1 - rustc_driver::DEFAULT_HOOK::{{closure}}::{{closure}}::hee2ebc973f73a8d6 [INFO] [stderr] 11: 0x7ffb0077e429 - std::panicking::rust_panic_with_hook::h2f8980d1d9fd4ca0 [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:628:17 [INFO] [stderr] 12: 0x7ffb0077dee0 - std::panicking::begin_panic_handler::{{closure}}::hd87853ef7e40ae97 [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:521:13 [INFO] [stderr] 13: 0x7ffb0077ab34 - std::sys_common::backtrace::__rust_end_short_backtrace::hcab167aa940694a2 [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 14: 0x7ffb0077de49 - rust_begin_unwind [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:517:5 [INFO] [stderr] 15: 0x7ffb00749791 - core::panicking::panic_fmt::hcf5f6d96e1dd7099 [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/core/src/panicking.rs:93:14 [INFO] [stderr] 16: 0x7ffb00749883 - core::result::unwrap_failed::he898b02f57993c42 [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/core/src/result.rs:1617:5 [INFO] [stderr] 17: 0x7ffb033d532e - core::ops::function::FnOnce::call_once::hb8a895ec037a41bd [INFO] [stderr] 18: 0x7ffb033d55dd - std::sync::once::Once::call_once_force::{{closure}}::hf22fcb7786575799 [INFO] [stderr] 19: 0x7ffb0074743c - std::sync::once::Once::call_inner::hc2acff14d719784d [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sync/once.rs:418:21 [INFO] [stderr] 20: 0x7ffb033d53d4 - rustc_data_structures::jobserver::client::h6a333a6ac68471d6 [INFO] [stderr] 21: 0x7ffb0338dbbe - rustc_session::session::build_session::h9a6e984c28ebf5d1 [INFO] [stderr] 22: 0x7ffb02a64ca9 - rustc_interface::util::create_session::h34b8795d6c3fb4bb [INFO] [stderr] 23: 0x7ffb02a31cf0 - rustc_interface::interface::create_compiler_and_run::hbb51e06a6bec0cbf [INFO] [stderr] 24: 0x7ffb02a23b89 - scoped_tls::ScopedKey::set::hecbcef0aa7ef3aaf [INFO] [stderr] 25: 0x7ffb02a2002a - std::sys_common::backtrace::__rust_begin_short_backtrace::h613e6113ac84bdcd [INFO] [stderr] 26: 0x7ffb02a1f365 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h44574c2a5516ec83 [INFO] [stderr] 27: 0x7ffb0078b0f3 - as core::ops::function::FnOnce>::call_once::h9c4443ed82ca1eae [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/alloc/src/boxed.rs:1636:9 [INFO] [stderr] 28: 0x7ffb0078b0f3 - as core::ops::function::FnOnce>::call_once::h4b334c81001270ca [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/alloc/src/boxed.rs:1636:9 [INFO] [stderr] 29: 0x7ffb0078b0f3 - std::sys::unix::thread::Thread::new::thread_start::h092d15d6be9ed8c7 [INFO] [stderr] at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys/unix/thread.rs:106:17 [INFO] [stderr] 30: 0x7ffb006a6609 - start_thread [INFO] [stderr] 31: 0x7ffb005ba293 - 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 (39e1293fc 2021-08-15) 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" "dbabb7ca0e560220705dce9cd244f26d0ff6f13ca732afecc3703c21124a1227", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dbabb7ca0e560220705dce9cd244f26d0ff6f13ca732afecc3703c21124a1227", kill_on_drop: false }` [INFO] [stdout] dbabb7ca0e560220705dce9cd244f26d0ff6f13ca732afecc3703c21124a1227