[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 try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolgeny%2Fcopper" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/lolgeny/copper on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "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-1/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" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d9ee6cc0414dc03606b947e80ba342f296abc81b2cc36562aad97bfba703b7c5 [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" "d9ee6cc0414dc03606b947e80ba342f296abc81b2cc36562aad97bfba703b7c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d9ee6cc0414dc03606b947e80ba342f296abc81b2cc36562aad97bfba703b7c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d9ee6cc0414dc03606b947e80ba342f296abc81b2cc36562aad97bfba703b7c5", kill_on_drop: false }` [INFO] [stdout] d9ee6cc0414dc03606b947e80ba342f296abc81b2cc36562aad97bfba703b7c5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d8525ef610a7601b6e2cb2e63541ee1620b23112438cfb399fea767879df5b59 [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" "d8525ef610a7601b6e2cb2e63541ee1620b23112438cfb399fea767879df5b59", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling convert_case v0.4.0 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Compiling copper v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling serde_derive v1.0.123 [INFO] [stderr] Checking serde 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 `missing_doc_code_examples` has been removed: use `rustdoc::missing_doc_code_examples` instead [INFO] [stdout] --> src/lib.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #![allow(missing_doc_code_examples)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [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] [stdout] warning: lint `missing_doc_code_examples` has been removed: use `rustdoc::missing_doc_code_examples` instead [INFO] [stdout] --> src/lib.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #![allow(missing_doc_code_examples)] [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-b091888c425c33e9/out/blocks.rs:4:16: 4:17 (#0), inner: [(Token(Token { kind: Ident("AcaciaButton", false), span: /opt/rustwide/target/debug/build/copper-b091888c425c33e9/out/blocks.rs:5:5: 5:17 (#0) }), Alone), (Token(Token { kind: Ident("minecraft", false), span: /opt/rustwide/target/debug/build/copper-b091888c425c33e9/out/blocks.rs:6:1: 6:10 (#0) }), Joint)] } stack=[FrameData { open: src/lib.rs:1:1: 1:1 (#0), inner: [(Token(Token { kind: Ident("pub", false), span: /opt/rustwide/target/debug/build/copper-b091888c425c33e9/out/blocks.rs:4:1: 4:4 (#0) }), Alone), (Token(Token { kind: Ident("enum", false), span: /opt/rustwide/target/debug/build/copper-b091888c425c33e9/out/blocks.rs:4:5: 4:9 (#0) }), Alone), (Token(Token { kind: Ident("Block", false), span: /opt/rustwide/target/debug/build/copper-b091888c425c33e9/out/blocks.rs:4:10: 4:15 (#0) }), Alone)] }]', compiler/rustc_parse/src/parser/attr_wrapper.rs:187:5 [INFO] [stdout] error: expected one of `(`, `,`, `=`, `{`, or `}`, found `minecraft` [INFO] [stdout] --> /opt/rustwide/target/debug/build/copper-b091888c425c33e9/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-b091888c425c33e9/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-b091888c425c33e9/out/blocks.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | minecraft:acaciaDoor [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: expected one of `(`, `,`, `=`, `{`, or `}`, found `minecraft` [INFO] [stdout] --> /opt/rustwide/target/debug/build/copper-b091888c425c33e9/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-b091888c425c33e9/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-b091888c425c33e9/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-b091888c425c33e9/out/blocks.rs:4:16: 4:17 (#0), inner: [(Token(Token { kind: Ident("AcaciaButton", false), span: /opt/rustwide/target/debug/build/copper-b091888c425c33e9/out/blocks.rs:5:5: 5:17 (#0) }), Alone), (Token(Token { kind: Ident("minecraft", false), span: /opt/rustwide/target/debug/build/copper-b091888c425c33e9/out/blocks.rs:6:1: 6:10 (#0) }), Joint)] } stack=[FrameData { open: src/lib.rs:1:1: 1:1 (#0), inner: [(Token(Token { kind: Ident("pub", false), span: /opt/rustwide/target/debug/build/copper-b091888c425c33e9/out/blocks.rs:4:1: 4:4 (#0) }), Alone), (Token(Token { kind: Ident("enum", false), span: /opt/rustwide/target/debug/build/copper-b091888c425c33e9/out/blocks.rs:4:5: 4:9 (#0) }), Alone), (Token(Token { kind: Ident("Block", false), span: /opt/rustwide/target/debug/build/copper-b091888c425c33e9/out/blocks.rs:4:10: 4:15 (#0) }), Alone)] }]', compiler/rustc_parse/src/parser/attr_wrapper.rs:187:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7f18d3bfda10 - std::backtrace_rs::backtrace::libunwind::trace::hfe3b1cace85e87d8 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x7f18d3bfda10 - std::backtrace_rs::backtrace::trace_unsynchronized::h542330af06479043 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7f18d3bfda10 - std::sys_common::backtrace::_print_fmt::h6b88726367858985 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x7f18d3bfda10 - ::fmt::hcd76ce6b485adbea [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 0: 0x7fe23e0daa10 - std::backtrace_rs::backtrace::libunwind::trace::hfe3b1cace85e87d8 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x7fe23e0daa10 - std::backtrace_rs::backtrace::trace_unsynchronized::h542330af06479043 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7fe23e0daa10 - std::sys_common::backtrace::_print_fmt::h6b88726367858985 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x7fe23e0daa10 - ::fmt::hcd76ce6b485adbea [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x7f18d3c6bf8f - core::fmt::write::h127419eb46f2ecc9 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/core/src/fmt/mod.rs:1092:17 [INFO] [stderr] 5: 0x7f18d3bf1b22 - std::io::Write::write_fmt::h0facb64ef2e7f5d8 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/io/mod.rs:1567:15 [INFO] [stderr] 6: 0x7f18d3c01745 - std::sys_common::backtrace::_print::h7bf1633ea5421f7b [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x7f18d3c01745 - std::sys_common::backtrace::print::h5cc4d09049928ba5 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x7f18d3c01745 - std::panicking::default_hook::{{closure}}::h9e84dc005bfc9fc7 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/panicking.rs:208:50 [INFO] [stderr] 4: 0x7fe23e148f8f - core::fmt::write::h127419eb46f2ecc9 [INFO] [stderr] 9: 0x7f18d3c011f3 - std::panicking::default_hook::h123278a03b1f796b [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/core/src/fmt/mod.rs:1092:17 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/panicking.rs:225:9 [INFO] [stderr] 5: 0x7fe23e0ceb22 - std::io::Write::write_fmt::h0facb64ef2e7f5d8 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/io/mod.rs:1567:15 [INFO] [stderr] 6: 0x7fe23e0de745 - std::sys_common::backtrace::_print::h7bf1633ea5421f7b [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x7fe23e0de745 - std::sys_common::backtrace::print::h5cc4d09049928ba5 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x7fe23e0de745 - std::panicking::default_hook::{{closure}}::h9e84dc005bfc9fc7 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x7fe23e0de1f3 - std::panicking::default_hook::h123278a03b1f796b [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x7fe23e8b19cb - rustc_driver::report_ice::h0dd0a80bb463fc7e [INFO] [stderr] 11: 0x7fe23e0deeb0 - std::panicking::rust_panic_with_hook::h4040631aa6c7bc27 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/panicking.rs:595:17 [INFO] [stderr] 12: 0x7fe23e0dea27 - std::panicking::begin_panic_handler::{{closure}}::h02a17b22ac092d08 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/panicking.rs:497:13 [INFO] [stderr] 13: 0x7fe23e0daecc - std::sys_common::backtrace::__rust_end_short_backtrace::h6063b024443b5852 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 14: 0x7fe23e0de989 - rust_begin_unwind [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/panicking.rs:493:5 [INFO] [stderr] 15: 0x7fe23e0a314b - std::panicking::begin_panic_fmt::h10b51f96d6207ff1 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/panicking.rs:435:5 [INFO] [stderr] 16: 0x7fe240ddc3e0 - ::collect_tokens_trailing_token::LazyTokenStreamImpl as rustc_ast::tokenstream::CreateTokenStream>::create_token_stream::h323597aa351e7b41 [INFO] [stderr] 17: 0x7fe240de853d - rustc_parse::prepend_attrs::h46a0b95ff8ce70d6 [INFO] [stderr] 18: 0x7fe240de7f35 - rustc_parse::nt_to_tokenstream::hb2f5090bc1fe0c59 [INFO] [stderr] 19: 0x7fe240d7184c - ::expand::hd7c34f919427f771 [INFO] [stderr] 20: 0x7fe2403296a0 - rustc_expand::expand::MacroExpander::fully_expand_fragment::h0b0045ddf50d63e3 [INFO] [stderr] 21: 0x7fe240d68753 - rustc_expand::expand::MacroExpander::expand_crate::h4719fe8de65d166b [INFO] [stderr] 22: 0x7fe2406353a4 - rustc_session::utils::::time::hc027b8626b165945 [INFO] [stderr] 23: 0x7fe24063cb3c - rustc_interface::passes::configure_and_expand_inner::ha548a296951ac995 [INFO] [stderr] 10: 0x7f18d43d49cb - rustc_driver::report_ice::h0dd0a80bb463fc7e [INFO] [stderr] 11: 0x7f18d3c01eb0 - std::panicking::rust_panic_with_hook::h4040631aa6c7bc27 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/panicking.rs:595:17 [INFO] [stderr] 12: 0x7f18d3c01a27 - std::panicking::begin_panic_handler::{{closure}}::h02a17b22ac092d08 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/panicking.rs:497:13 [INFO] [stderr] 24: 0x7fe24063a41f - rustc_interface::passes::configure_and_expand::{{closure}}::h61a2b0caf9e94c98 [INFO] [stderr] 13: 0x7f18d3bfdecc - std::sys_common::backtrace::__rust_end_short_backtrace::h6063b024443b5852 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 14: 0x7f18d3c01989 - rust_begin_unwind [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/panicking.rs:493:5 [INFO] [stderr] 15: 0x7f18d3bc614b - std::panicking::begin_panic_fmt::h10b51f96d6207ff1 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/panicking.rs:435:5 [INFO] [stderr] 16: 0x7f18d68ff3e0 - ::collect_tokens_trailing_token::LazyTokenStreamImpl as rustc_ast::tokenstream::CreateTokenStream>::create_token_stream::h323597aa351e7b41 [INFO] [stderr] 17: 0x7f18d690b53d - rustc_parse::prepend_attrs::h46a0b95ff8ce70d6 [INFO] [stderr] 18: 0x7f18d690af35 - rustc_parse::nt_to_tokenstream::hb2f5090bc1fe0c59 [INFO] [stderr] 19: 0x7f18d689484c - ::expand::hd7c34f919427f771 [INFO] [stderr] 25: 0x7fe240636778 - rustc_data_structures::box_region::PinnedGenerator::new::hb107e9bc8fba03dd [INFO] [stderr] 26: 0x7fe24063bfac - rustc_interface::passes::configure_and_expand::h5a2d62106a7023df [INFO] [stderr] 20: 0x7f18d5e4c6a0 - rustc_expand::expand::MacroExpander::fully_expand_fragment::h0b0045ddf50d63e3 [INFO] [stderr] 27: 0x7fe240646214 - rustc_interface::queries::Queries::expansion::ha9ee338af9034db7 [INFO] [stderr] 21: 0x7f18d688b753 - rustc_expand::expand::MacroExpander::expand_crate::h4719fe8de65d166b [INFO] [stderr] 28: 0x7fe240601ff3 - rustc_interface::queries::::enter::h570982e14391824d [INFO] [stderr] 29: 0x7fe2405fc611 - rustc_span::with_source_map::h19c02e2b8cd97d79 [INFO] [stderr] 22: 0x7f18d61583a4 - rustc_session::utils::::time::hc027b8626b165945 [INFO] [stderr] 23: 0x7f18d615fb3c - rustc_interface::passes::configure_and_expand_inner::ha548a296951ac995 [INFO] [stderr] 30: 0x7fe2406018a6 - scoped_tls::ScopedKey::set::ha910f4dd75d3f2b6 [INFO] [stderr] 31: 0x7fe2406030d4 - std::sys_common::backtrace::__rust_begin_short_backtrace::h9028e0cefdffcecf [INFO] [stderr] 24: 0x7f18d615d41f - rustc_interface::passes::configure_and_expand::{{closure}}::h61a2b0caf9e94c98 [INFO] [stderr] 25: 0x7f18d6159778 - rustc_data_structures::box_region::PinnedGenerator::new::hb107e9bc8fba03dd [INFO] [stderr] 32: 0x7fe24061e235 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88ad06dc90d5e88d [INFO] [stderr] 26: 0x7f18d615efac - rustc_interface::passes::configure_and_expand::h5a2d62106a7023df [INFO] [stderr] 27: 0x7f18d6169214 - rustc_interface::queries::Queries::expansion::ha9ee338af9034db7 [INFO] [stderr] 33: 0x7fe23e0ee728 - as core::ops::function::FnOnce>::call_once::hd8ea7ada17dfa868 [INFO] [stderr] 28: 0x7f18d6124ff3 - rustc_interface::queries::::enter::h570982e14391824d [INFO] [stderr] 29: 0x7f18d611f611 - rustc_span::with_source_map::h19c02e2b8cd97d79 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/alloc/src/boxed.rs:1546:9 [INFO] [stderr] 30: 0x7f18d61248a6 - scoped_tls::ScopedKey::set::ha910f4dd75d3f2b6 [INFO] [stderr] 31: 0x7f18d61260d4 - std::sys_common::backtrace::__rust_begin_short_backtrace::h9028e0cefdffcecf [INFO] [stderr] 34: 0x7fe23e0ee728 - as core::ops::function::FnOnce>::call_once::h91ce3a636c58b978 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/alloc/src/boxed.rs:1546:9 [INFO] [stderr] 35: 0x7fe23e0ee728 - std::sys::unix::thread::Thread::new::thread_start::h2e193c2e23720fdf [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/sys/unix/thread.rs:71:17 [INFO] [stderr] 36: 0x7fe23e004609 - start_thread [INFO] [stderr] 37: 0x7fe23df18293 - clone [INFO] [stderr] 38: 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 1.52.0-nightly (b09a3e9a7 2021-03-16) 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] 32: 0x7f18d6141235 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88ad06dc90d5e88d [INFO] [stderr] 33: 0x7f18d3c11728 - as core::ops::function::FnOnce>::call_once::hd8ea7ada17dfa868 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/alloc/src/boxed.rs:1546:9 [INFO] [stderr] 34: 0x7f18d3c11728 - as core::ops::function::FnOnce>::call_once::h91ce3a636c58b978 [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/alloc/src/boxed.rs:1546:9 [INFO] [stderr] 35: 0x7f18d3c11728 - std::sys::unix::thread::Thread::new::thread_start::h2e193c2e23720fdf [INFO] [stderr] at /rustc/b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b/library/std/src/sys/unix/thread.rs:71:17 [INFO] [stderr] 36: 0x7f18d3b27609 - start_thread [INFO] [stderr] 37: 0x7f18d3a3b293 - clone [INFO] [stderr] 38: 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 1.52.0-nightly (b09a3e9a7 2021-03-16) 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] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stderr] query stack during panic: [INFO] [stderr] end of query stack [INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `copper` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "d8525ef610a7601b6e2cb2e63541ee1620b23112438cfb399fea767879df5b59", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d8525ef610a7601b6e2cb2e63541ee1620b23112438cfb399fea767879df5b59", kill_on_drop: false }` [INFO] [stdout] d8525ef610a7601b6e2cb2e63541ee1620b23112438cfb399fea767879df5b59