[INFO] cloning repository https://github.com/lolgeny/copper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lolgeny/copper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolgeny%2Fcopper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolgeny%2Fcopper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d808ed9070dee5cd4ce477b35e09fa4b9713ae2
[INFO] checking lolgeny/copper against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolgeny%2Fcopper" "/workspace/builds/worker-70/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-70/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lolgeny/copper on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lolgeny/copper
[INFO] finished tweaking git repo https://github.com/lolgeny/copper
[INFO] tweaked toml for git repo https://github.com/lolgeny/copper written to /workspace/builds/worker-70/source/Cargo.toml
[INFO] crate git repo https://github.com/lolgeny/copper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a64186c91f9e8eae9d71bf02297c5cd523b061e511cbe666ce9d47cbb1aaa115
[INFO] running `Command { std: "docker" "start" "-a" "a64186c91f9e8eae9d71bf02297c5cd523b061e511cbe666ce9d47cbb1aaa115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a64186c91f9e8eae9d71bf02297c5cd523b061e511cbe666ce9d47cbb1aaa115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a64186c91f9e8eae9d71bf02297c5cd523b061e511cbe666ce9d47cbb1aaa115", kill_on_drop: false }`
[INFO] [stdout] a64186c91f9e8eae9d71bf02297c5cd523b061e511cbe666ce9d47cbb1aaa115
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9c044cbd0b2adc3613360c6059fdcc0f8148c43557c2ea2d3f594ad8c532653
[INFO] running `Command { std: "docker" "start" "-a" "b9c044cbd0b2adc3613360c6059fdcc0f8148c43557c2ea2d3f594ad8c532653", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling copper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stdout] warning: lint `rustdoc` has been removed: use `rustdoc::all` instead
[INFO] [stdout]  --> src/lib.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![warn(rustdoc)]
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `rustdoc` has been removed: use `rustdoc::all` instead
[INFO] [stdout]  --> src/lib.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![warn(rustdoc)]
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] thread 'rustc' panicked at 'Stack should be empty: final_buf=FrameData { open: /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:4:16: 4:17 (#0), open_delim: Brace, inner: [(Token(Token { kind: Ident("AcaciaButton", false), span: /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:5:5: 5:17 (#0) }), Alone), (Token(Token { kind: Ident("minecraft", false), span: /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:6:1: 6:10 (#0) }), Joint)] } stack=[FrameData { open: no-location (#0), open_delim: NoDelim, inner: [(Token(Token { kind: Ident("pub", false), span: /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:4:1: 4:4 (#0) }), Alone), (Token(Token { kind: Ident("enum", false), span: /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:4:5: 4:9 (#0) }), Alone), (Token(Token { kind: Ident("Block", false), span: /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:4:10: 4:15 (#0) }), Alone)] }]', compiler/rustc_parse/src/parser/attr_wrapper.rs:501:5
[INFO] [stdout] error: expected one of `(`, `,`, `=`, `{`, or `}`, found `minecraft`
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 5 |     AcaciaButton
[INFO] [stdout]   |                 -
[INFO] [stdout]   |                 |
[INFO] [stdout]   |                 expected one of `(`, `,`, `=`, `{`, or `}`
[INFO] [stdout]   |                 help: missing `,`
[INFO] [stdout] 6 | minecraft:acaciaDoor
[INFO] [stdout]   | ^^^^^^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] stack backtrace:
[INFO] [stdout] error: expected one of `(`, `,`, `=`, `{`, or `}`, found `:`
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | minecraft:acaciaDoor
[INFO] [stdout]   |          ^ expected one of `(`, `,`, `=`, `{`, or `}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected item, found `:`
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | minecraft:acaciaDoor
[INFO] [stdout]   |          ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    0:     0x7f45dbedab40 - std::backtrace_rs::backtrace::libunwind::trace::ha0ad43e8a952bfe7
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]    1:     0x7f45dbedab40 - std::backtrace_rs::backtrace::trace_unsynchronized::h6830419c0c4130dc
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7f45dbedab40 - std::sys_common::backtrace::_print_fmt::h8f3516631ffa1ef5
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x7f45dbedab40 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he1640d5f0d93f618
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]    4:     0x7f45dbf486bc - core::fmt::write::h88012e1f01caeebf
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]    5:     0x7f45dbecc2d5 - std::io::Write::write_fmt::h360fa85b30182555
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/io/mod.rs:1665:15
[INFO] [stderr]    6:     0x7f45dbede89b - std::sys_common::backtrace::_print::ha1f00492f406a015
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]    7:     0x7f45dbede89b - std::sys_common::backtrace::print::hd54561b13feb6af3
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]    8:     0x7f45dbede89b - std::panicking::default_hook::{{closure}}::h84fe124cd0864662
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:208:50
[INFO] [stderr]    9:     0x7f45dbede371 - std::panicking::default_hook::h5a8e74a76ce290a7
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:225:9
[INFO] [stdout] error: expected one of `(`, `,`, `=`, `{`, or `}`, found `minecraft`
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 5 |     AcaciaButton
[INFO] [stdout]   |                 -
[INFO] [stdout]   |                 |
[INFO] [stdout]   |                 expected one of `(`, `,`, `=`, `{`, or `}`
[INFO] [stdout]   |                 help: missing `,`
[INFO] [stdout] 6 | minecraft:acaciaDoor
[INFO] [stdout]   | ^^^^^^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `(`, `,`, `=`, `{`, or `}`, found `:`
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | minecraft:acaciaDoor
[INFO] [stdout]   |          ^ expected one of `(`, `,`, `=`, `{`, or `}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected item, found `:`
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | minecraft:acaciaDoor
[INFO] [stdout]   |          ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] thread 'rustc' panicked at 'Stack should be empty: final_buf=FrameData { open: /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:4:16: 4:17 (#0), open_delim: Brace, inner: [(Token(Token { kind: Ident("AcaciaButton", false), span: /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:5:5: 5:17 (#0) }), Alone), (Token(Token { kind: Ident("minecraft", false), span: /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:6:1: 6:10 (#0) }), Joint)] } stack=[FrameData { open: no-location (#0), open_delim: NoDelim, inner: [(Token(Token { kind: Ident("pub", false), span: /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:4:1: 4:4 (#0) }), Alone), (Token(Token { kind: Ident("enum", false), span: /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:4:5: 4:9 (#0) }), Alone), (Token(Token { kind: Ident("Block", false), span: /opt/rustwide/target/debug/build/copper-bd46317e4a0636af/out/blocks.rs:4:10: 4:15 (#0) }), Alone)] }]', compiler/rustc_parse/src/parser/attr_wrapper.rs:501:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7f4115e5ab40 - std::backtrace_rs::backtrace::libunwind::trace::ha0ad43e8a952bfe7
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]    1:     0x7f4115e5ab40 - std::backtrace_rs::backtrace::trace_unsynchronized::h6830419c0c4130dc
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7f4115e5ab40 - std::sys_common::backtrace::_print_fmt::h8f3516631ffa1ef5
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x7f4115e5ab40 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he1640d5f0d93f618
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]    4:     0x7f4115ec86bc - core::fmt::write::h88012e1f01caeebf
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]    5:     0x7f4115e4c2d5 - std::io::Write::write_fmt::h360fa85b30182555
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/io/mod.rs:1665:15
[INFO] [stderr]    6:     0x7f4115e5e89b - std::sys_common::backtrace::_print::ha1f00492f406a015
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]    7:     0x7f4115e5e89b - std::sys_common::backtrace::print::hd54561b13feb6af3
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]    8:     0x7f4115e5e89b - std::panicking::default_hook::{{closure}}::h84fe124cd0864662
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:208:50
[INFO] [stderr]    9:     0x7f4115e5e371 - std::panicking::default_hook::h5a8e74a76ce290a7
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:225:9
[INFO] [stderr]   10:     0x7f45dc6b7251 - rustc_driver::DEFAULT_HOOK::{{closure}}::{{closure}}::h6de3be617154114e
[INFO] [stderr]   11:     0x7f45dbedf0c9 - std::panicking::rust_panic_with_hook::h67c812a4fe9d4c91
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:626:17
[INFO] [stderr]   12:     0x7f45dbedeb87 - std::panicking::begin_panic_handler::{{closure}}::h33f9c1b96af300d7
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:519:13
[INFO] [stderr]   13:     0x7f45dbedb03c - std::sys_common::backtrace::__rust_end_short_backtrace::h51bae64be5921f0e
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]   14:     0x7f45dbedeae9 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:515:5
[INFO] [stderr]   15:     0x7f45dbea7aab - std::panicking::begin_panic_fmt::h7ab3d84aa4ae32a2
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:457:5
[INFO] [stderr]   16:     0x7f45ddfa411b - <rustc_parse::parser::attr_wrapper::LazyTokenStreamImpl as rustc_ast::tokenstream::CreateTokenStream>::create_token_stream::h747ab3c76fa32858
[INFO] [stderr]   17:     0x7f45deb2de59 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &mut F>::call_once::ha426a63a86c8841b
[INFO] [stderr]   18:     0x7f45de17cf2f - <core::iter::adapters::flatten::FlatMap<I,U,F> as core::iter::traits::iterator::Iterator>::next::ha2ed15702fe00a51
[INFO] [stderr]   19:     0x7f45de17e257 - <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter::ha6ca0a342a24cce8
[INFO] [stderr]   20:     0x7f45deb2e968 - rustc_ast::tokenstream::AttrAnnotatedTokenStream::to_tokenstream::ha57cbdbb40bd8730
[INFO] [stderr]   21:     0x7f45de937aaf - rustc_parse::prepend_attrs::h2f8fbc245ad11be1
[INFO] [stderr]   22:     0x7f45de937044 - rustc_parse::nt_to_tokenstream::h500e61a3577de974
[INFO] [stderr]   23:     0x7f45de8c131b - <rustc_expand::proc_macro::ProcMacroDerive as rustc_expand::base::MultiItemModifier>::expand::ha7964cda1859bc10
[INFO] [stderr]   24:     0x7f45ddea8a71 - rustc_expand::expand::MacroExpander::fully_expand_fragment::h9c88bd08102b332f
[INFO] [stderr]   25:     0x7f45de8bcc6b - rustc_expand::expand::MacroExpander::expand_crate::h4cdd16c34d68fb61
[INFO] [stderr]   26:     0x7f45de1ff042 - rustc_session::utils::<impl rustc_session::session::Session>::time::h6a599d78d74f81b4
[INFO] [stderr]   27:     0x7f45de1d96dc - rustc_interface::passes::configure_and_expand::h42c2bbd6fabcbf88
[INFO] [stderr]   28:     0x7f45de1d3843 - rustc_interface::queries::Queries::expansion::h4830aa84e78751b5
[INFO] [stderr]   29:     0x7f45de1b28a3 - rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter::h2007d30ef68567cb
[INFO] [stderr]   30:     0x7f45de1a244c - rustc_span::with_source_map::hc5adfd8eb2dd5236
[INFO] [stderr]   31:     0x7f45de1b3c8a - rustc_interface::interface::create_compiler_and_run::h976ed8e22b4f89b8
[INFO] [stderr]   32:     0x7f45de1a6e89 - scoped_tls::ScopedKey<T>::set::h4a2887b4d5b96c48
[INFO] [stderr]   33:     0x7f45de1a39aa - std::sys_common::backtrace::__rust_begin_short_backtrace::h220030c0c75c9d89
[INFO] [stderr]   34:     0x7f45de1a2df5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hd62830e2741d6b63
[INFO] [stderr]   35:     0x7f45dbeeb657 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6bff7798948b1075
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/alloc/src/boxed.rs:1572:9
[INFO] [stderr]   36:     0x7f45dbeeb657 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc2d25ac38f6b2342
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/alloc/src/boxed.rs:1572:9
[INFO] [stderr]   37:     0x7f45dbeeb657 - std::sys::unix::thread::Thread::new::thread_start::hbba5bc368baac205
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys/unix/thread.rs:74:17
[INFO] [stderr]   38:     0x7f45dbe05609 - start_thread
[INFO] [stderr]   10:     0x7f4116637251 - rustc_driver::DEFAULT_HOOK::{{closure}}::{{closure}}::h6de3be617154114e
[INFO] [stderr]   11:     0x7f4115e5f0c9 - std::panicking::rust_panic_with_hook::h67c812a4fe9d4c91
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:626:17
[INFO] [stderr]   12:     0x7f4115e5eb87 - std::panicking::begin_panic_handler::{{closure}}::h33f9c1b96af300d7
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:519:13
[INFO] [stderr]   13:     0x7f4115e5b03c - std::sys_common::backtrace::__rust_end_short_backtrace::h51bae64be5921f0e
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]   14:     0x7f4115e5eae9 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:515:5
[INFO] [stderr]   15:     0x7f4115e27aab - std::panicking::begin_panic_fmt::h7ab3d84aa4ae32a2
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:457:5
[INFO] [stderr]   16:     0x7f4117f2411b - <rustc_parse::parser::attr_wrapper::LazyTokenStreamImpl as rustc_ast::tokenstream::CreateTokenStream>::create_token_stream::h747ab3c76fa32858
[INFO] [stderr]   17:     0x7f4118aade59 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &mut F>::call_once::ha426a63a86c8841b
[INFO] [stderr]   18:     0x7f41180fcf2f - <core::iter::adapters::flatten::FlatMap<I,U,F> as core::iter::traits::iterator::Iterator>::next::ha2ed15702fe00a51
[INFO] [stderr]   19:     0x7f41180fe257 - <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter::ha6ca0a342a24cce8
[INFO] [stderr]   20:     0x7f4118aae968 - rustc_ast::tokenstream::AttrAnnotatedTokenStream::to_tokenstream::ha57cbdbb40bd8730
[INFO] [stderr]   21:     0x7f41188b7aaf - rustc_parse::prepend_attrs::h2f8fbc245ad11be1
[INFO] [stderr]   22:     0x7f41188b7044 - rustc_parse::nt_to_tokenstream::h500e61a3577de974
[INFO] [stderr]   39:     0x7f45dbd19293 - clone
[INFO] [stderr]   23:     0x7f411884131b - <rustc_expand::proc_macro::ProcMacroDerive as rustc_expand::base::MultiItemModifier>::expand::ha7964cda1859bc10
[INFO] [stderr]   24:     0x7f4117e28a71 - rustc_expand::expand::MacroExpander::fully_expand_fragment::h9c88bd08102b332f
[INFO] [stderr]   25:     0x7f411883cc6b - rustc_expand::expand::MacroExpander::expand_crate::h4cdd16c34d68fb61
[INFO] [stderr]   26:     0x7f411817f042 - rustc_session::utils::<impl rustc_session::session::Session>::time::h6a599d78d74f81b4
[INFO] [stderr]   27:     0x7f41181596dc - rustc_interface::passes::configure_and_expand::h42c2bbd6fabcbf88
[INFO] [stderr]   28:     0x7f4118153843 - rustc_interface::queries::Queries::expansion::h4830aa84e78751b5
[INFO] [stderr]   29:     0x7f41181328a3 - rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter::h2007d30ef68567cb
[INFO] [stderr]   30:     0x7f411812244c - rustc_span::with_source_map::hc5adfd8eb2dd5236
[INFO] [stderr]   31:     0x7f4118133c8a - rustc_interface::interface::create_compiler_and_run::h976ed8e22b4f89b8
[INFO] [stderr]   32:     0x7f4118126e89 - scoped_tls::ScopedKey<T>::set::h4a2887b4d5b96c48
[INFO] [stderr]   33:     0x7f41181239aa - std::sys_common::backtrace::__rust_begin_short_backtrace::h220030c0c75c9d89
[INFO] [stderr]   34:     0x7f4118122df5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hd62830e2741d6b63
[INFO] [stderr]   35:     0x7f4115e6b657 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6bff7798948b1075
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/alloc/src/boxed.rs:1572:9
[INFO] [stderr]   36:     0x7f4115e6b657 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc2d25ac38f6b2342
[INFO] [stderr]   40:                0x0 - <unknown>
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/alloc/src/boxed.rs:1572:9
[INFO] [stderr]   37:     0x7f4115e6b657 - std::sys::unix::thread::Thread::new::thread_start::hbba5bc368baac205
[INFO] [stderr]                                at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys/unix/thread.rs:74:17
[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]   38:     0x7f4115d85609 - start_thread
[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 1.55.0 (c8dfcfe04 2021-09-06) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type lib
[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] end of query stack
[INFO] [stderr]   39:     0x7f4115c99293 - clone
[INFO] [stderr]   40:                0x0 - <unknown>
[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 1.55.0 (c8dfcfe04 2021-09-06) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: -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] end of query stack
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `copper` due to 4 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b9c044cbd0b2adc3613360c6059fdcc0f8148c43557c2ea2d3f594ad8c532653", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9c044cbd0b2adc3613360c6059fdcc0f8148c43557c2ea2d3f594ad8c532653", kill_on_drop: false }`
[INFO] [stdout] b9c044cbd0b2adc3613360c6059fdcc0f8148c43557c2ea2d3f594ad8c532653
