[INFO] cloning repository https://github.com/thoiberg/algo-playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thoiberg/algo-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthoiberg%2Falgo-playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthoiberg%2Falgo-playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ff370618f21fe4161d1c4d0ff4bcfd04866e6270 [INFO] building thoiberg/algo-playground against try#9b5e8b16bd1c4acf4cf8e6880368314cf021a987+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthoiberg%2Falgo-playground" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/thoiberg/algo-playground on toolchain 9b5e8b16bd1c4acf4cf8e6880368314cf021a987 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/thoiberg/algo-playground [INFO] finished tweaking git repo https://github.com/thoiberg/algo-playground [INFO] tweaked toml for git repo https://github.com/thoiberg/algo-playground written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/thoiberg/algo-playground already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "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] 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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b938a1d09a581681e482a3c1f8b9dc5a140ed84a3c2242d47ab3bf08e9bee665 [INFO] running `Command { std: "docker" "start" "-a" "b938a1d09a581681e482a3c1f8b9dc5a140ed84a3c2242d47ab3bf08e9bee665", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b938a1d09a581681e482a3c1f8b9dc5a140ed84a3c2242d47ab3bf08e9bee665", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b938a1d09a581681e482a3c1f8b9dc5a140ed84a3c2242d47ab3bf08e9bee665", kill_on_drop: false }` [INFO] [stdout] b938a1d09a581681e482a3c1f8b9dc5a140ed84a3c2242d47ab3bf08e9bee665 [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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a148dab6279cd9cdc01f3770373adcb5e8056debeba266229b8e168adfe334ea [INFO] running `Command { std: "docker" "start" "-a" "a148dab6279cd9cdc01f3770373adcb5e8056debeba266229b8e168adfe334ea", kill_on_drop: false }` [INFO] [stderr] Compiling algo_playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `fmt::Display` and `ops::Deref` [INFO] [stdout] --> src/main.rs:4:11 [INFO] [stdout] | [INFO] [stdout] 4 | use std::{fmt::Display, ops::Deref}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: internal compiler error: compiler/rustc_mir_build/src/builder/scope.rs:1724:17: cannot unwind from goto -> bb36 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] thread 'rustc' panicked at compiler/rustc_mir_build/src/builder/scope.rs:1724:17: [INFO] [stderr] Box [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x743b9dd81caa - ::fmt::h636462e57d5ef1e1 [INFO] [stderr] 1: 0x743b9e413cbc - core::fmt::write::h067060808ac50eb9 [INFO] [stderr] 2: 0x743b9f328e11 - std::io::Write::write_fmt::h4674fa2ed7c0dfdd [INFO] [stderr] 3: 0x743b9dd81b02 - std::sys::backtrace::BacktraceLock::print::h0c77148acfb0b5e9 [INFO] [stderr] 4: 0x743b9dd83ffa - std::panicking::default_hook::{{closure}}::h30daa8e7c6ccb09d [INFO] [stderr] 5: 0x743b9dd83e43 - std::panicking::default_hook::h25f21dc0f2064615 [INFO] [stderr] 6: 0x743b9ceeff28 - std[b36e883d67eb0403]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 7: 0x743b9dd847b8 - std::panicking::rust_panic_with_hook::hc98438687e833605 [INFO] [stderr] 8: 0x743b9cf2a341 - std[b36e883d67eb0403]::panicking::begin_panic::::{closure#0} [INFO] [stderr] 9: 0x743b9cf1f526 - std[b36e883d67eb0403]::sys::backtrace::__rust_end_short_backtrace::::{closure#0}, !> [INFO] [stderr] 10: 0x743b9cf1f50d - std[b36e883d67eb0403]::panicking::begin_panic:: [INFO] [stderr] 11: 0x743b9cf342a1 - ::emit_producing_guarantee [INFO] [stderr] 12: 0x743b9d484fdc - ::span_bug:: [INFO] [stderr] 13: 0x743b9d50a897 - rustc_middle[8ad6e8ce52578819]::util::bug::opt_span_bug_fmt::::{closure#0} [INFO] [stderr] 14: 0x743b9d4f006a - rustc_middle[8ad6e8ce52578819]::ty::context::tls::with_opt::::{closure#0}, !>::{closure#0} [INFO] [stderr] 15: 0x743b9d4efefb - rustc_middle[8ad6e8ce52578819]::ty::context::tls::with_context_opt::::{closure#0}, !>::{closure#0}, !> [INFO] [stderr] 16: 0x743b9b934437 - rustc_middle[8ad6e8ce52578819]::util::bug::span_bug_fmt:: [INFO] [stderr] 17: 0x743b9edd541b - ::build_unwind_tree [INFO] [stderr] 18: 0x743b9edcd7cd - rustc_mir_build[73684a27b88b946a]::builder::mir_build [INFO] [stderr] 19: 0x743b9e407714 - rustc_mir_transform[857cd804783fef4d]::mir_built [INFO] [stderr] 20: 0x743b9e4076d7 - rustc_query_impl[1e55094a59e290f4]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 21: 0x743b9e6953d1 - rustc_query_system[67781f9dc633c543]::query::plumbing::try_execute_query::, rustc_query_system[67781f9dc633c543]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[1e55094a59e290f4]::plumbing::QueryCtxt, false> [INFO] [stderr] 22: 0x743b9e694f8d - rustc_query_impl[1e55094a59e290f4]::query_impl::mir_built::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 23: 0x743b9b467185 - rustc_mir_build[73684a27b88b946a]::check_unsafety::check_unsafety [INFO] [stderr] 24: 0x743b9ece98a7 - rustc_query_impl[1e55094a59e290f4]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 25: 0x743b9ece9b69 - rustc_query_system[67781f9dc633c543]::query::plumbing::try_execute_query::, rustc_query_system[67781f9dc633c543]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[1e55094a59e290f4]::plumbing::QueryCtxt, false> [INFO] [stderr] 26: 0x743b9ece97d1 - rustc_query_impl[1e55094a59e290f4]::query_impl::check_unsafety::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 27: 0x743b9e89bd32 - rustc_interface[b59e7ee7606ca029]::passes::run_required_analyses [INFO] [stderr] 28: 0x743b9f32cc9e - rustc_interface[b59e7ee7606ca029]::passes::analysis [INFO] [stderr] 29: 0x743b9f32cc6f - rustc_query_impl[1e55094a59e290f4]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 30: 0x743b9f37b355 - rustc_query_system[67781f9dc633c543]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[1e55094a59e290f4]::plumbing::QueryCtxt, false> [INFO] [stderr] 31: 0x743b9f37b08e - rustc_query_impl[1e55094a59e290f4]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 32: 0x743b9f3701de - rustc_interface[b59e7ee7606ca029]::passes::create_and_enter_global_ctxt::, rustc_driver_impl[be5855d19ccc8b6c]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0} [INFO] [stderr] 33: 0x743b9f3dff51 - rustc_interface[b59e7ee7606ca029]::interface::run_compiler::<(), rustc_driver_impl[be5855d19ccc8b6c]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 34: 0x743b9f2f5087 - std[b36e883d67eb0403]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 35: 0x743b9f2f551c - <::spawn_unchecked_::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[303105738bd0c2ae]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 36: 0x743b9f2f6aef - std::sys::pal::unix::thread::Thread::new::thread_start::ha554cc4ba6335b05 [INFO] [stderr] 37: 0x743ba0b44ac3 - [INFO] [stderr] 38: 0x743ba0bd5a04 - clone [INFO] [stderr] 39: 0x0 - [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: please make sure that you have updated to the latest nightly [INFO] [stderr] [INFO] [stderr] warning: the ICE couldn't be written to `/opt/rustwide/workdir/rustc-ice-2025-01-01T02_55_48-8.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.85.0-nightly (9b5e8b16b 2024-12-19) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: --crate-type bin -C embed-bitcode=no -C debuginfo=2 [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_built] building MIR for `::find` [INFO] [stderr] #1 [check_unsafety] unsafety-checking `::find` [INFO] [stderr] #2 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stdout] warning: unused variable: `child` [INFO] [stdout] --> src/main.rs:92:29 [INFO] [stdout] | [INFO] [stdout] 92 | let child = *left.left.unwrap(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_child` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0507]: cannot move out of `left.left` which is behind a mutable reference [INFO] [stdout] --> src/main.rs:92:38 [INFO] [stdout] | [INFO] [stdout] 92 | let child = *left.left.unwrap(); [INFO] [stdout] | ^^^^^^^^^ -------- `left.left` moved due to this method call [INFO] [stdout] | | [INFO] [stdout] | help: consider calling `.as_ref()` or `.as_mut()` to borrow the type's contents [INFO] [stdout] | move occurs because `left.left` has type `Option>>`, which does not implement the `Copy` trait [INFO] [stdout] | [INFO] [stdout] note: `Option::::unwrap` takes ownership of the receiver `self`, which moves `left.left` [INFO] [stdout] --> /rustc/9b5e8b16bd1c4acf4cf8e6880368314cf021a987/library/core/src/option.rs:969:25 [INFO] [stdout] help: you could `clone` the value and consume it, if the `Node: Clone` trait bound could be satisfied [INFO] [stdout] | [INFO] [stdout] 92 | let child = *>> as Clone>::clone(&left.left).unwrap(); [INFO] [stdout] | ++++++++++++++++++++++++++++++++++++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0507`. [INFO] [stdout] [INFO] [stderr] error: could not compile `algo_playground` (bin "algo_playground") due to 1 previous error; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "a148dab6279cd9cdc01f3770373adcb5e8056debeba266229b8e168adfe334ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a148dab6279cd9cdc01f3770373adcb5e8056debeba266229b8e168adfe334ea", kill_on_drop: false }` [INFO] [stdout] a148dab6279cd9cdc01f3770373adcb5e8056debeba266229b8e168adfe334ea