[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 try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585 [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 ffa4a0215752773248fb0f0a8092f1c3e7907e9e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "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" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--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-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fc872eecfb73a9d5d6bb1f8941604a0593394c0289819b37de804ea580fb5054 [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" "fc872eecfb73a9d5d6bb1f8941604a0593394c0289819b37de804ea580fb5054", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fc872eecfb73a9d5d6bb1f8941604a0593394c0289819b37de804ea580fb5054", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc872eecfb73a9d5d6bb1f8941604a0593394c0289819b37de804ea580fb5054", kill_on_drop: false }` [INFO] [stdout] fc872eecfb73a9d5d6bb1f8941604a0593394c0289819b37de804ea580fb5054 [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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0fa2b47eba0db2006a61a8ac61c9dd8b807bd973776ded880639cc974c17a990 [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" "0fa2b47eba0db2006a61a8ac61c9dd8b807bd973776ded880639cc974c17a990", 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] [stderr] 0: 0x7ff7383da230 - std::backtrace_rs::backtrace::libunwind::trace::ha1eabb142084ea37 [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96 [INFO] [stderr] 1: 0x7ff7383da230 - std::backtrace_rs::backtrace::trace_unsynchronized::hbb8825661d997281 [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/std/src/../../backtrace/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7ff7383da230 - std::sys_common::backtrace::_print_fmt::h26d850e2f7183914 [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/std/src/sys_common/backtrace.rs:79 [INFO] [stderr] 3: 0x7ff7383da230 - ::fmt::h3834b06f68a2b012 [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/std/src/sys_common/backtrace.rs:58 [INFO] [stderr] 4: 0x7ff73844a11c - core::fmt::write::h3a043650ba7bf668 [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/core/src/fmt/mod.rs:1117 [INFO] [stderr] 5: 0x7ff7383cce25 - std::io::Write::write_fmt::h9c0c8944a1898139 [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/std/src/io/mod.rs:1510 [INFO] [stderr] 6: 0x7ff7383ded00 - std::sys_common::backtrace::_print::h693c0c2cc41d4d10 [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/std/src/sys_common/backtrace.rs:61 [INFO] [stderr] 7: 0x7ff7383ded00 - std::sys_common::backtrace::print::h213be73e5670b8ea [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/std/src/sys_common/backtrace.rs:48 [INFO] [stderr] 8: 0x7ff7383ded00 - std::panicking::default_hook::{{closure}}::h2d49a3361cc4e7ea [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/std/src/panicking.rs:200 [INFO] [stderr] 9: 0x7ff7383dea4c - std::panicking::default_hook::hd41fbdeba93207ba [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/std/src/panicking.rs:219 [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] [stderr] 10: 0x7ff738c72179 - rustc_driver::report_ice::he3f4ee9b37091a36 [INFO] [stderr] 11: 0x7ff7383df498 - std::panicking::rust_panic_with_hook::hcab398664b4bd473 [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/std/src/panicking.rs:573 [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] [stderr] 12: 0x7ff73a4ce9f4 - std::panicking::begin_panic::{{closure}}::h4cebc58ad9b9691c [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] [stderr] 13: 0x7ff73a4ce9ac - std::sys_common::backtrace::__rust_end_short_backtrace::h4fa9e222676869d6 [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] [stderr] 14: 0x7ff73a308f4c - std::panicking::begin_panic::h1a2c0b034838d9a5 [INFO] [stderr] 15: 0x7ff73a153053 - rustc_mir::transform::check_consts::qualifs::in_operand::h59056ffcf4625fe0 [INFO] [stderr] 16: 0x7ff73a266ae9 - rustc_mir::transform::promote_consts::Validator::qualif_local::he0818e4c5468528f [INFO] [stderr] 17: 0x7ff73a2678d8 - rustc_mir::transform::promote_consts::Validator::validate_local::h9851249f5a6345bc [INFO] [stderr] 18: 0x7ff73a2678bd - rustc_mir::transform::promote_consts::Validator::validate_local::h9851249f5a6345bc [INFO] [stderr] 19: 0x7ff73a26762d - rustc_mir::transform::promote_consts::Validator::validate_local::h9851249f5a6345bc [INFO] [stderr] 20: 0x7ff73a26c7f5 - rustc_mir::transform::promote_consts::should_suggest_const_in_array_repeat_expressions_attribute::ha8bb71d48b94fd32 [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] [stderr] 21: 0x7ff73a5aef30 - rustc_mir::borrow_check::type_check::TypeChecker::check_rvalue::h9c08d087e520663e [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] [stderr] 22: 0x7ff73a5b2988 - rustc_mir::borrow_check::type_check::TypeChecker::typeck_mir::h7d2652fc1b5fc744 [INFO] [stderr] 23: 0x7ff73a5a5f0a - rustc_mir::borrow_check::type_check::type_check::h5daf431977e8528b [INFO] [stderr] 24: 0x7ff73a07d25f - rustc_mir::borrow_check::nll::compute_regions::h749ac0c289a229d5 [INFO] [stderr] 25: 0x7ff73a539077 - rustc_mir::borrow_check::do_mir_borrowck::hea5efaf115e9553e [INFO] [stderr] 26: 0x7ff73a22f965 - rustc_infer::infer::InferCtxtBuilder::enter::h16a4f76cc310c03b [INFO] [stderr] 27: 0x7ff73a53618f - rustc_mir::borrow_check::mir_borrowck::h0105ad9ab7a1a386 [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 28: 0x7ff73a508f3c - core::ops::function::FnOnce::call_once::h93e7e37ec4ba854f [INFO] [stderr] 29: 0x7ff738f1ca3e - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_borrowck>::compute::h270e767f26ed59e7 [INFO] [stderr] 30: 0x7ff738fbd877 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h117c3cfa5073c27f [INFO] [stderr] 31: 0x7ff738f1f633 - rustc_data_structures::stack::ensure_sufficient_stack::hae61167abe67a746 [INFO] [stderr] 32: 0x7ff738f72fdc - rustc_query_system::query::plumbing::get_query_impl::h3870c707c09a87e3 [INFO] [stderr] 33: 0x7ff738f8ed89 - rustc_query_system::query::plumbing::ensure_query_impl::hef506fe98ec07366 [INFO] [stderr] 34: 0x7ff738fee5b9 - rustc_session::utils::::time::h98927e4805692e3c [INFO] [stderr] 35: 0x7ff73902af0b - rustc_interface::passes::analysis::hbab36b8508cec69b [INFO] [stderr] 36: 0x7ff738c94b4b - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::analysis>::compute::h96007a4daac172e3 [INFO] [stderr] 37: 0x7ff738c7aeb7 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h870d464b3c273ad9 [INFO] [stderr] 38: 0x7ff738c8a2f9 - rustc_data_structures::stack::ensure_sufficient_stack::hed1aaed0e48de538 [INFO] [stderr] 39: 0x7ff738c215f7 - rustc_query_system::query::plumbing::get_query_impl::hd80659b22c46a034 [INFO] [stderr] 40: 0x7ff738c962d9 - rustc_interface::queries::::enter::he8d067e5cc2e5cf3 [INFO] [stderr] 41: 0x7ff738c2b0b7 - rustc_span::with_source_map::hb4903a6e020779b8 [INFO] [stderr] 42: 0x7ff738c97173 - rustc_interface::interface::create_compiler_and_run::h7cf1df49d3b886b9 [INFO] [stderr] 43: 0x7ff738c75f8a - scoped_tls::ScopedKey::set::h4355e69f8f27c5a3 [INFO] [stderr] 44: 0x7ff738c8ac73 - std::sys_common::backtrace::__rust_begin_short_backtrace::h648a46294b533bfb [INFO] [stderr] 45: 0x7ff738c155ce - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbcb747b579a7a881 [INFO] [stderr] 46: 0x7ff7383f01fa - as core::ops::function::FnOnce>::call_once::h8a8db08de617a605 [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/alloc/src/boxed.rs:1025 [INFO] [stderr] 47: 0x7ff7383f01fa - as core::ops::function::FnOnce>::call_once::hddfcff0ffd25c0c4 [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/alloc/src/boxed.rs:1025 [INFO] [stderr] 48: 0x7ff7383f01fa - std::sys::unix::thread::Thread::new::thread_start::h8e648f9ee2e9cb3a [INFO] [stderr] at /rustc/ffa4a0215752773248fb0f0a8092f1c3e7907e9e/library/std/src/sys/unix/thread.rs:87 [INFO] [stderr] 49: 0x7ff73830c609 - start_thread [INFO] [stderr] 50: 0x7ff738220103 - clone [INFO] [stderr] 51: 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 (ffa4a0215 2020-08-16) 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" "0fa2b47eba0db2006a61a8ac61c9dd8b807bd973776ded880639cc974c17a990", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0fa2b47eba0db2006a61a8ac61c9dd8b807bd973776ded880639cc974c17a990", kill_on_drop: false }` [INFO] [stdout] 0fa2b47eba0db2006a61a8ac61c9dd8b807bd973776ded880639cc974c17a990