[INFO] cloning repository https://github.com/perlindgren/array_list [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/perlindgren/array_list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Farray_list", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Farray_list'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 968b3d2e58566fdad8e28f94f8565f2495200922 [INFO] checking perlindgren/array_list against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Farray_list" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/perlindgren/array_list on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/perlindgren/array_list [INFO] finished tweaking git repo https://github.com/perlindgren/array_list [INFO] tweaked toml for git repo https://github.com/perlindgren/array_list written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/perlindgren/array_list already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3036234736de0e03964cb9ffdf1eb12b5a4ff94a63df88e0a4103c04b69f4232 [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" "3036234736de0e03964cb9ffdf1eb12b5a4ff94a63df88e0a4103c04b69f4232", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3036234736de0e03964cb9ffdf1eb12b5a4ff94a63df88e0a4103c04b69f4232", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3036234736de0e03964cb9ffdf1eb12b5a4ff94a63df88e0a4103c04b69f4232", kill_on_drop: false }` [INFO] [stdout] 3036234736de0e03964cb9ffdf1eb12b5a4ff94a63df88e0a4103c04b69f4232 [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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] a5ae4b457c2659f36a802ec399e42cc7408db221a5b899e595b6358e9d503fee [INFO] running `Command { std: "docker" "start" "-a" "a5ae4b457c2659f36a802ec399e42cc7408db221a5b899e595b6358e9d503fee", kill_on_drop: false }` [INFO] [stderr] Checking array_list v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] thread 'rustc' panicked at 'assertion failed: promoted.is_none()', src/librustc_mir/transform/check_consts/qualifs.rs:248:9 [INFO] [stderr] stack backtrace: [INFO] [stdout] warning: associated function is never used: `free` [INFO] [stdout] --> src/main.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 48 | fn free(&mut self, i: u8) { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `push` [INFO] [stdout] --> src/main.rs:78:8 [INFO] [stdout] | [INFO] [stdout] 78 | fn push(&mut self, v: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `pop` [INFO] [stdout] --> src/main.rs:92:8 [INFO] [stdout] | [INFO] [stdout] 92 | fn pop(&mut self) -> T { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:115:9 [INFO] [stdout] | [INFO] [stdout] 115 | write!(f, "List :"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:118:13 [INFO] [stdout] | [INFO] [stdout] 118 | write!(f, "{:?}, ", self.nodes[i as usize].data); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `free` [INFO] [stdout] --> src/main.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 48 | fn free(&mut self, i: u8) { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `push` [INFO] [stdout] --> src/main.rs:78:8 [INFO] [stdout] | [INFO] [stdout] 78 | fn push(&mut self, v: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `pop` [INFO] [stdout] --> src/main.rs:92:8 [INFO] [stdout] | [INFO] [stdout] 92 | fn pop(&mut self) -> T { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:115:9 [INFO] [stdout] | [INFO] [stdout] 115 | write!(f, "List :"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:118:13 [INFO] [stdout] | [INFO] [stdout] 118 | write!(f, "{:?}, ", self.nodes[i as usize].data); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 0: 0x7f9988fcf200 - std::backtrace_rs::backtrace::libunwind::trace::ha1eabb142084ea37 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96 [INFO] [stderr] 1: 0x7f9988fcf200 - std::backtrace_rs::backtrace::trace_unsynchronized::hbb8825661d997281 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/../../backtrace/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7f9988fcf200 - std::sys_common::backtrace::_print_fmt::h26d850e2f7183914 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/sys_common/backtrace.rs:79 [INFO] [stderr] 3: 0x7f9988fcf200 - ::fmt::h3834b06f68a2b012 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/sys_common/backtrace.rs:58 [INFO] [stderr] 4: 0x7f998903f15c - core::fmt::write::h3a043650ba7bf668 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/core/src/fmt/mod.rs:1117 [INFO] [stderr] 5: 0x7f9988fc1df5 - std::io::Write::write_fmt::h9c0c8944a1898139 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/io/mod.rs:1510 [INFO] [stderr] 6: 0x7f9988fd3cb0 - std::sys_common::backtrace::_print::h693c0c2cc41d4d10 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/sys_common/backtrace.rs:61 [INFO] [stderr] 7: 0x7f9988fd3cb0 - std::sys_common::backtrace::print::h213be73e5670b8ea [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/sys_common/backtrace.rs:48 [INFO] [stderr] 8: 0x7f9988fd3cb0 - std::panicking::default_hook::{{closure}}::h2d49a3361cc4e7ea [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/panicking.rs:200 [INFO] [stderr] 9: 0x7f9988fd39fc - std::panicking::default_hook::hd41fbdeba93207ba [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/panicking.rs:219 [INFO] [stderr] 10: 0x7f998980f2a9 - rustc_driver::report_ice::h1120fbf2656cc9f3 [INFO] [stderr] 11: 0x7f9988fd4448 - std::panicking::rust_panic_with_hook::hcab398664b4bd473 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/panicking.rs:573 [INFO] [stderr] 12: 0x7f998b055334 - std::panicking::begin_panic::{{closure}}::hc4efd01f624adfdd [INFO] [stderr] 13: 0x7f998b05529c - std::sys_common::backtrace::__rust_end_short_backtrace::h793ac6199bad5388 [INFO] [stderr] 14: 0x7f998ae9e92c - std::panicking::begin_panic::h8d674f1a029a00a2 [INFO] [stderr] 15: 0x7f998acedb23 - rustc_mir::transform::check_consts::qualifs::in_operand::hc5014fa52d7225d2 [INFO] [stderr] 16: 0x7f998ae00ef9 - rustc_mir::transform::promote_consts::Validator::qualif_local::ha5bfeca5f8830763 [INFO] [stderr] 17: 0x7f998ae01dfc - rustc_mir::transform::promote_consts::Validator::validate_local::ha3c94cfb1ae8a74d [INFO] [stderr] 18: 0x7f998ae01de1 - rustc_mir::transform::promote_consts::Validator::validate_local::ha3c94cfb1ae8a74d [INFO] [stderr] 19: 0x7f998ae01a3d - rustc_mir::transform::promote_consts::Validator::validate_local::ha3c94cfb1ae8a74d [INFO] [stderr] 20: 0x7f998ae06db5 - rustc_mir::transform::promote_consts::should_suggest_const_in_array_repeat_expressions_attribute::hcc39c27adb6bcebb [INFO] [stderr] 21: 0x7f998b1477b0 - rustc_mir::borrow_check::type_check::TypeChecker::check_rvalue::h35ec4ad8ec138813 [INFO] [stderr] 22: 0x7f998b14b720 - rustc_mir::borrow_check::type_check::TypeChecker::typeck_mir::hf285cae8c4f7750d [INFO] [stderr] 23: 0x7f998b13e823 - rustc_mir::borrow_check::type_check::type_check::h7a8fd9e125a04c1c [INFO] [stderr] 24: 0x7f998ac1774d - rustc_mir::borrow_check::nll::compute_regions::h1caf7e76a91a5518 [INFO] [stderr] 25: 0x7f998b0c1d8a - rustc_mir::borrow_check::do_mir_borrowck::hb8f3cac81904aa7e [INFO] [stderr] 26: 0x7f998adcf965 - rustc_infer::infer::InferCtxtBuilder::enter::hc6b1dadd04f04f6e [INFO] [stderr] 27: 0x7f998b0bee2f - rustc_mir::borrow_check::mir_borrowck::h48717e7ce369818f [INFO] [stderr] 28: 0x7f998b09430c - core::ops::function::FnOnce::call_once::hcdf094e85a4ce079 [INFO] [stderr] 29: 0x7f9989b8a42e - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_borrowck>::compute::hfa4a3abe675cd211 [INFO] [stderr] 30: 0x7f9989b92057 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h1380ca2a61c460e4 [INFO] [stderr] 31: 0x7f9989bf4ffa - rustc_data_structures::stack::ensure_sufficient_stack::hf3937c2079b8174a [INFO] [stderr] 32: 0x7f9989b4adac - rustc_query_system::query::plumbing::get_query_impl::h89dc2c9bceeeb6a2 [INFO] [stderr] 33: 0x7f9989b5c2f9 - rustc_query_system::query::plumbing::ensure_query_impl::h7f7fe7a513fdc009 [INFO] [stderr] 34: 0x7f9989b8ddd9 - rustc_session::utils::::time::ha66aa83f835849b6 [INFO] [stderr] 35: 0x7f9989be0efb - rustc_interface::passes::analysis::h87ba6970405358f9 [INFO] [stderr] 36: 0x7f99898796fb - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::analysis>::compute::hb654f058e736d7c5 [INFO] [stderr] 37: 0x7f998985d6a7 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h161b791097581916 [INFO] [stderr] 38: 0x7f99897ef1a3 - rustc_data_structures::stack::ensure_sufficient_stack::hc783a9f4c640ffbc [INFO] [stderr] 39: 0x7f998985a764 - rustc_query_system::query::plumbing::get_query_impl::he95d1dd93896c72a [INFO] [stderr] 40: 0x7f9989879d7b - rustc_interface::passes::QueryContext::enter::h646280c86eb0a127 [INFO] [stderr] 41: 0x7f9989852a79 - rustc_interface::queries::::enter::hdf18b982b0040d8c [INFO] [stderr] 42: 0x7f998981437d - rustc_span::with_source_map::h4312ff0660509f98 [INFO] [stderr] 43: 0x7f99898537f5 - rustc_interface::interface::create_compiler_and_run::hb2f7781764c10c57 [INFO] [stderr] 44: 0x7f99898154bb - rustc_span::with_session_globals::h6f0396829c123936 [INFO] [stderr] 45: 0x7f99898433fd - std::sys_common::backtrace::__rust_begin_short_backtrace::habb527642304c3bb [INFO] [stderr] 46: 0x7f99897f971e - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbe0f8ecc165e4f02 [INFO] [stderr] 47: 0x7f9988fe527a - as core::ops::function::FnOnce>::call_once::h8a8db08de617a605 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/alloc/src/boxed.rs:1025 [INFO] [stderr] 48: 0x7f9988fe527a - as core::ops::function::FnOnce>::call_once::hddfcff0ffd25c0c4 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/alloc/src/boxed.rs:1025 [INFO] [stderr] 49: 0x7f9988fe527a - std::sys::unix::thread::Thread::new::thread_start::h8e648f9ee2e9cb3a [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/sys/unix/thread.rs:87 [INFO] [stderr] 50: 0x7f9988f02609 - start_thread [INFO] [stderr] 51: 0x7f9988e16103 - clone [INFO] [stderr] 52: 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 1.47.0-nightly (5e3f1b148 2020-08-13) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type bin [INFO] [stderr] [INFO] [stderr] note: some of the compiler flags provided by cargo are hidden [INFO] [stderr] [INFO] [stderr] query stack during panic: [INFO] [stderr] #0 [mir_borrowck] borrow-checking `A` [INFO] [stderr] #1 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stderr] error: could not compile `array_list`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "a5ae4b457c2659f36a802ec399e42cc7408db221a5b899e595b6358e9d503fee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a5ae4b457c2659f36a802ec399e42cc7408db221a5b899e595b6358e9d503fee", kill_on_drop: false }` [INFO] [stdout] a5ae4b457c2659f36a802ec399e42cc7408db221a5b899e595b6358e9d503fee