[INFO] cloning repository https://github.com/StephyGao/Programming-Language-Parser-
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/StephyGao/Programming-Language-Parser-" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStephyGao%2FProgramming-Language-Parser-", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStephyGao%2FProgramming-Language-Parser-'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 356c71008470558afab5d0ba9e6bfb39c6cee43b
[INFO] building StephyGao/Programming-Language-Parser- 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%2FStephyGao%2FProgramming-Language-Parser-" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/StephyGao/Programming-Language-Parser- 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/StephyGao/Programming-Language-Parser-
[INFO] finished tweaking git repo https://github.com/StephyGao/Programming-Language-Parser-
[INFO] tweaked toml for git repo https://github.com/StephyGao/Programming-Language-Parser- written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/StephyGao/Programming-Language-Parser- 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 42d71068bc37de58d89ba2652ecfe2a64504a05d52b5ac8c22dde946113e9116
[INFO] running `Command { std: "docker" "start" "-a" "42d71068bc37de58d89ba2652ecfe2a64504a05d52b5ac8c22dde946113e9116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42d71068bc37de58d89ba2652ecfe2a64504a05d52b5ac8c22dde946113e9116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42d71068bc37de58d89ba2652ecfe2a64504a05d52b5ac8c22dde946113e9116", kill_on_drop: false }`
[INFO] [stdout] 42d71068bc37de58d89ba2652ecfe2a64504a05d52b5ac8c22dde946113e9116
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9e2c928ca629a3d43378093f0f059f80528ef34ace9437c2ad281a4bb4ac890c
[INFO] running `Command { std: "docker" "start" "-a" "9e2c928ca629a3d43378093f0f059f80528ef34ace9437c2ad281a4bb4ac890c", kill_on_drop: false }`
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/character_stream.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryFrom`
[INFO] [stdout]  --> src/character_stream.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 127 | /         match self.check_declaration_type(pos) {
[INFO] [stdout] 128 | |             Some(next_pos) => {
[INFO] [stdout] 129 | |                 pos = next_pos;
[INFO] [stdout] 130 | |                 match self.check_variable_declaration(pos) {
[INFO] [stdout] ...   |
[INFO] [stdout] 149 | |             _ => { return None; }
[INFO] [stdout] 150 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 151 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:201:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         match self.tokens.get(pos) {
[INFO] [stdout] 156 | |             Some(token) => {
[INFO] [stdout] 157 | |                 if token.get_text() == "void" {
[INFO] [stdout] 158 | |                     pos += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 199 | |             _ => { return None; }
[INFO] [stdout] 200 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 201 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:223:9
[INFO] [stdout]     |
[INFO] [stdout] 205 | /         match self.check_declaration_type(pos) {
[INFO] [stdout] 206 | |             Some(next_pos) => {
[INFO] [stdout] 207 | |                 match self.check_parameter_block(next_pos) {
[INFO] [stdout] 208 | |                     Some(next_pos2) => {
[INFO] [stdout] ...   |
[INFO] [stdout] 221 | |             _ => { return None; }
[INFO] [stdout] 222 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 223 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:244:9
[INFO] [stdout]     |
[INFO] [stdout] 227 | /         match self.check_data_type(pos) {
[INFO] [stdout] 228 | |             Some(next_pos) => {
[INFO] [stdout] 229 | |                 pos = next_pos;
[INFO] [stdout] 230 | |                 match self.tokens.get(pos) {
[INFO] [stdout] ...   |
[INFO] [stdout] 242 | |             _ => { return None; }
[INFO] [stdout] 243 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 244 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:273:9
[INFO] [stdout]     |
[INFO] [stdout] 248 | /         match self.tokens.get(pos) {
[INFO] [stdout] 249 | |             Some(token) => {
[INFO] [stdout] 250 | |                 if token.get_text() == "=" {
[INFO] [stdout] 251 | |                     pos += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 271 | |             _ => { return None; }
[INFO] [stdout] 272 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 273 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 277 | /         match self.check_parameter_block(pos) {
[INFO] [stdout] 278 | |             Some(next_pos) => {
[INFO] [stdout] 279 | |                 pos = next_pos;
[INFO] [stdout] 280 | |                 match self.tokens.get(pos) {
[INFO] [stdout] ...   |
[INFO] [stdout] 292 | |             _ => { return None; }
[INFO] [stdout] 293 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 294 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:337:9
[INFO] [stdout]     |
[INFO] [stdout] 298 | /         match self.tokens.get(pos) {
[INFO] [stdout] 299 | |             Some(token) => {
[INFO] [stdout] 300 | |                 if token.get_text() == "{" {
[INFO] [stdout] 301 | |                     pos += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 335 | |             _ => { return None; }
[INFO] [stdout] 336 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 337 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:392:9
[INFO] [stdout]     |
[INFO] [stdout] 343 | /         match self.tokens.get(pos) {
[INFO] [stdout] 344 | |             Some(token) => {
[INFO] [stdout] 345 | |                 if token.get_text() == "(" { //是不是 （
[INFO] [stdout] 346 | |                     pos += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 390 | |             _ => { return None; }
[INFO] [stdout] 391 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 392 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:419:9
[INFO] [stdout]     |
[INFO] [stdout] 408 | /         match self.tokens.get(pos) {
[INFO] [stdout] 409 | |             Some(token) => {
[INFO] [stdout] 410 | |                 if token.is_constant() {
[INFO] [stdout] 411 | |                     pos += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 417 | |             _ => { return None; }
[INFO] [stdout] 418 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 419 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:475:9
[INFO] [stdout]     |
[INFO] [stdout] 458 | /         match self.check_data_type(pos) {
[INFO] [stdout] 459 | |             Some(next_pos) => {
[INFO] [stdout] 460 | |                 pos = next_pos;
[INFO] [stdout] 461 | |                 match self.tokens.get(pos) {
[INFO] [stdout] ...   |
[INFO] [stdout] 473 | |             _ => { return None; }
[INFO] [stdout] 474 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 475 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:499:9
[INFO] [stdout]     |
[INFO] [stdout] 487 | /         match self.tokens.get(pos) {
[INFO] [stdout] 488 | |             Some(token) => {
[INFO] [stdout] 489 | |                 match token.get_text() {
[INFO] [stdout] 490 | |                     "char" | "short" | "int" | "long" => {
[INFO] [stdout] ...   |
[INFO] [stdout] 497 | |             _ => { return None; }
[INFO] [stdout] 498 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 499 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:575:9
[INFO] [stdout]     |
[INFO] [stdout] 519 | /         match self.tokens.get(pos) {
[INFO] [stdout] 520 | |             Some(token) => {
[INFO] [stdout] 521 | |                 if token.is_identifier() {
[INFO] [stdout] 522 | |                     pos += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 573 | |             _ => { return None; }
[INFO] [stdout] 574 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 575 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:621:9
[INFO] [stdout]     |
[INFO] [stdout] 579 | /         match self.tokens.get(pos) {
[INFO] [stdout] 580 | |             Some(token) => {
[INFO] [stdout] 581 | |                 if token.get_text() == "while" {
[INFO] [stdout] 582 | |                     pos += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 619 | |             _ => { return None; }
[INFO] [stdout] 620 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 621 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:667:9
[INFO] [stdout]     |
[INFO] [stdout] 625 | /         match self.tokens.get(pos) {
[INFO] [stdout] 626 | |             Some(token) => {
[INFO] [stdout] 627 | |                 if token.get_text() == "if" {
[INFO] [stdout] 628 | |                     pos += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 665 | |             _ => { return None; }
[INFO] [stdout] 666 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 667 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:698:9
[INFO] [stdout]     |
[INFO] [stdout] 671 | /         match self.tokens.get(pos) {
[INFO] [stdout] 672 | |             Some(token) => {
[INFO] [stdout] 673 | |                 if token.get_text() == "return" {
[INFO] [stdout] 674 | |                     pos += 1;
[INFO] [stdout] ...   |
[INFO] [stdout] 696 | |             _ => { return None; }
[INFO] [stdout] 697 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 698 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:719:9
[INFO] [stdout]     |
[INFO] [stdout] 702 | /         match self.check_simple_expression(pos) {
[INFO] [stdout] 703 | |             Some(next_pos) => {
[INFO] [stdout] 704 | |                 pos = next_pos;
[INFO] [stdout] 705 | |                 match self.check_relation_operator(pos) {
[INFO] [stdout] ...   |
[INFO] [stdout] 717 | |             _ => { return None; }
[INFO] [stdout] 718 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 719 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:742:9
[INFO] [stdout]     |
[INFO] [stdout] 723 | /         match self.check_term(pos) {
[INFO] [stdout] 724 | |             Some(next_pos) => {
[INFO] [stdout] 725 | |                 pos = next_pos;
[INFO] [stdout] 726 | |                 loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 740 | |             _ => { return None; }
[INFO] [stdout] 741 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 742 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:765:9
[INFO] [stdout]     |
[INFO] [stdout] 746 | /         match self.check_factor(pos) {
[INFO] [stdout] 747 | |             Some(next_pos) => {
[INFO] [stdout] 748 | |                 pos = next_pos;
[INFO] [stdout] 749 | |                 loop {
[INFO] [stdout] ...   |
[INFO] [stdout] 763 | |             _ => { return None; }
[INFO] [stdout] 764 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 765 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:869:9
[INFO] [stdout]     |
[INFO] [stdout] 857 | /         match self.tokens.get(pos) {
[INFO] [stdout] 858 | |             Some(token) => {
[INFO] [stdout] 859 | |                 match token.get_text() {
[INFO] [stdout] 860 | |                     "==" | "<" | ">" | "<=" | ">=" | "!=" => { 
[INFO] [stdout] ...   |
[INFO] [stdout] 867 | |             _ => { return None; }
[INFO] [stdout] 868 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 869 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:885:9
[INFO] [stdout]     |
[INFO] [stdout] 873 | /         match self.tokens.get(pos) {
[INFO] [stdout] 874 | |             Some(token) => {
[INFO] [stdout] 875 | |                 match token.get_text() {
[INFO] [stdout] 876 | |                     "+" | "-" => { 
[INFO] [stdout] ...   |
[INFO] [stdout] 883 | |             _ => { return None; }
[INFO] [stdout] 884 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 885 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:901:9
[INFO] [stdout]     |
[INFO] [stdout] 889 | /         match self.tokens.get(pos) {
[INFO] [stdout] 890 | |             Some(token) => {
[INFO] [stdout] 891 | |                 match token.get_text() {
[INFO] [stdout] 892 | |                     "*" | "/" => {
[INFO] [stdout] ...   |
[INFO] [stdout] 899 | |             _ => { return None; }
[INFO] [stdout] 900 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 901 |           None
[INFO] [stdout]     |           ^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: internal compiler error: compiler/rustc_mir_build/src/builder/scope.rs:1724:17: cannot unwind from goto -> bb82
[INFO] [stdout]    --> src/scanner.rs:192:6
[INFO] [stdout]     |
[INFO] [stdout] 192 |     }
[INFO] [stdout]     |      ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] thread 'rustc' panicked at compiler/rustc_mir_build/src/builder/scope.rs:1724:17:
[INFO] [stderr] Box<dyn Any>
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7bc007581caa - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h636462e57d5ef1e1
[INFO] [stderr]    1:     0x7bc007c13cbc - core::fmt::write::h067060808ac50eb9
[INFO] [stderr]    2:     0x7bc008b28e11 - std::io::Write::write_fmt::h4674fa2ed7c0dfdd
[INFO] [stderr]    3:     0x7bc007581b02 - std::sys::backtrace::BacktraceLock::print::h0c77148acfb0b5e9
[INFO] [stderr]    4:     0x7bc007583ffa - std::panicking::default_hook::{{closure}}::h30daa8e7c6ccb09d
[INFO] [stderr]    5:     0x7bc007583e43 - std::panicking::default_hook::h25f21dc0f2064615
[INFO] [stderr]    6:     0x7bc0066eff28 - std[b36e883d67eb0403]::panicking::update_hook::<alloc[b228c160e2f6f380]::boxed::Box<rustc_driver_impl[be5855d19ccc8b6c]::install_ice_hook::{closure#0}>>::{closure#0}
[INFO] [stderr]    7:     0x7bc0075847b8 - std::panicking::rust_panic_with_hook::hc98438687e833605
[INFO] [stderr]    8:     0x7bc00672a341 - std[b36e883d67eb0403]::panicking::begin_panic::<rustc_errors[485cd74d39701405]::ExplicitBug>::{closure#0}
[INFO] [stderr]    9:     0x7bc00671f526 - std[b36e883d67eb0403]::sys::backtrace::__rust_end_short_backtrace::<std[b36e883d67eb0403]::panicking::begin_panic<rustc_errors[485cd74d39701405]::ExplicitBug>::{closure#0}, !>
[INFO] [stderr]   10:     0x7bc00671f50d - std[b36e883d67eb0403]::panicking::begin_panic::<rustc_errors[485cd74d39701405]::ExplicitBug>
[INFO] [stderr]   11:     0x7bc0067342a1 - <rustc_errors[485cd74d39701405]::diagnostic::BugAbort as rustc_errors[485cd74d39701405]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
[INFO] [stderr]   12:     0x7bc006c84fdc - <rustc_errors[485cd74d39701405]::DiagCtxtHandle>::span_bug::<rustc_span[26755a3edc0cc6c0]::span_encoding::Span, alloc[b228c160e2f6f380]::string::String>
[INFO] [stderr]   13:     0x7bc006d0a897 - rustc_middle[8ad6e8ce52578819]::util::bug::opt_span_bug_fmt::<rustc_span[26755a3edc0cc6c0]::span_encoding::Span>::{closure#0}
[INFO] [stderr]   14:     0x7bc006cf006a - rustc_middle[8ad6e8ce52578819]::ty::context::tls::with_opt::<rustc_middle[8ad6e8ce52578819]::util::bug::opt_span_bug_fmt<rustc_span[26755a3edc0cc6c0]::span_encoding::Span>::{closure#0}, !>::{closure#0}
[INFO] [stderr]   15:     0x7bc006cefefb - rustc_middle[8ad6e8ce52578819]::ty::context::tls::with_context_opt::<rustc_middle[8ad6e8ce52578819]::ty::context::tls::with_opt<rustc_middle[8ad6e8ce52578819]::util::bug::opt_span_bug_fmt<rustc_span[26755a3edc0cc6c0]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
[INFO] [stderr]   16:     0x7bc005134437 - rustc_middle[8ad6e8ce52578819]::util::bug::span_bug_fmt::<rustc_span[26755a3edc0cc6c0]::span_encoding::Span>
[INFO] [stderr]   17:     0x7bc0085d541b - <rustc_mir_build[73684a27b88b946a]::builder::Builder>::build_unwind_tree
[INFO] [stderr]   18:     0x7bc0085cd7cd - rustc_mir_build[73684a27b88b946a]::builder::mir_build
[INFO] [stderr]   19:     0x7bc007c07714 - rustc_mir_transform[857cd804783fef4d]::mir_built
[INFO] [stderr]   20:     0x7bc007c076d7 - rustc_query_impl[1e55094a59e290f4]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[1e55094a59e290f4]::query_impl::mir_built::dynamic_query::{closure#2}::{closure#0}, rustc_middle[8ad6e8ce52578819]::query::erase::Erased<[u8; 8usize]>>
[INFO] [stderr]   21:     0x7bc007e953d1 - rustc_query_system[67781f9dc633c543]::query::plumbing::try_execute_query::<rustc_query_impl[1e55094a59e290f4]::DynamicConfig<rustc_data_structures[e21ff9714bc20455]::vec_cache::VecCache<rustc_span[26755a3edc0cc6c0]::def_id::LocalDefId, rustc_middle[8ad6e8ce52578819]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[67781f9dc633c543]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[1e55094a59e290f4]::plumbing::QueryCtxt, false>
[INFO] [stderr]   22:     0x7bc007e94f8d - rustc_query_impl[1e55094a59e290f4]::query_impl::mir_built::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   23:     0x7bc004c67185 - rustc_mir_build[73684a27b88b946a]::check_unsafety::check_unsafety
[INFO] [stderr]   24:     0x7bc0084e98a7 - rustc_query_impl[1e55094a59e290f4]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[1e55094a59e290f4]::query_impl::check_unsafety::dynamic_query::{closure#2}::{closure#0}, rustc_middle[8ad6e8ce52578819]::query::erase::Erased<[u8; 0usize]>>
[INFO] [stderr]   25:     0x7bc0084e9b69 - rustc_query_system[67781f9dc633c543]::query::plumbing::try_execute_query::<rustc_query_impl[1e55094a59e290f4]::DynamicConfig<rustc_data_structures[e21ff9714bc20455]::vec_cache::VecCache<rustc_span[26755a3edc0cc6c0]::def_id::LocalDefId, rustc_middle[8ad6e8ce52578819]::query::erase::Erased<[u8; 0usize]>, rustc_query_system[67781f9dc633c543]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[1e55094a59e290f4]::plumbing::QueryCtxt, false>
[INFO] [stderr]   26:     0x7bc0084e97d1 - rustc_query_impl[1e55094a59e290f4]::query_impl::check_unsafety::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   27:     0x7bc00809bd32 - rustc_interface[b59e7ee7606ca029]::passes::run_required_analyses
[INFO] [stderr]   28:     0x7bc008b2cc9e - rustc_interface[b59e7ee7606ca029]::passes::analysis
[INFO] [stderr]   29:     0x7bc008b2cc6f - rustc_query_impl[1e55094a59e290f4]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[1e55094a59e290f4]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[8ad6e8ce52578819]::query::erase::Erased<[u8; 0usize]>>
[INFO] [stderr]   30:     0x7bc008b7b355 - rustc_query_system[67781f9dc633c543]::query::plumbing::try_execute_query::<rustc_query_impl[1e55094a59e290f4]::DynamicConfig<rustc_query_system[67781f9dc633c543]::query::caches::SingleCache<rustc_middle[8ad6e8ce52578819]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[1e55094a59e290f4]::plumbing::QueryCtxt, false>
[INFO] [stderr]   31:     0x7bc008b7b08e - rustc_query_impl[1e55094a59e290f4]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   32:     0x7bc008b701de - rustc_interface[b59e7ee7606ca029]::passes::create_and_enter_global_ctxt::<core[303105738bd0c2ae]::option::Option<rustc_interface[b59e7ee7606ca029]::queries::Linker>, rustc_driver_impl[be5855d19ccc8b6c]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
[INFO] [stderr]   33:     0x7bc008bdff51 - rustc_interface[b59e7ee7606ca029]::interface::run_compiler::<(), rustc_driver_impl[be5855d19ccc8b6c]::run_compiler::{closure#0}>::{closure#1}
[INFO] [stderr]   34:     0x7bc008af5087 - std[b36e883d67eb0403]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[b59e7ee7606ca029]::util::run_in_thread_with_globals<rustc_interface[b59e7ee7606ca029]::util::run_in_thread_pool_with_globals<rustc_interface[b59e7ee7606ca029]::interface::run_compiler<(), rustc_driver_impl[be5855d19ccc8b6c]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   35:     0x7bc008af551c - <<std[b36e883d67eb0403]::thread::Builder>::spawn_unchecked_<rustc_interface[b59e7ee7606ca029]::util::run_in_thread_with_globals<rustc_interface[b59e7ee7606ca029]::util::run_in_thread_pool_with_globals<rustc_interface[b59e7ee7606ca029]::interface::run_compiler<(), rustc_driver_impl[be5855d19ccc8b6c]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[303105738bd0c2ae]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   36:     0x7bc008af6aef - std::sys::pal::unix::thread::Thread::new::thread_start::ha554cc4ba6335b05
[INFO] [stderr]   37:     0x7bc002e6bac3 - <unknown>
[INFO] [stderr]   38:     0x7bc002efca04 - clone
[INFO] [stderr]   39:                0x0 - <unknown>
[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-2024-12-31T21_57_14-9.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 `scanner::<impl at src/scanner.rs:49:1: 49:13>::handle_operator`
[INFO] [stderr] #1 [check_unsafety] unsafety-checking `scanner::<impl at src/scanner.rs:49:1: 49:13>::handle_operator`
[INFO] [stderr] #2 [analysis] running analysis passes on this crate
[INFO] [stderr] end of query stack
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:24:22
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 Some(mut token) => {
[INFO] [stdout]    |                      ----^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/parser.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Some(x) => {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `space_num` is never read
[INFO] [stdout]   --> src/parser.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let mut space_num = 0;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/parser.rs:99:21
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 for j in 0..space_num {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |             let mut text = self.tokens[i].get_text();
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:204:49
[INFO] [stdout]     |
[INFO] [stdout] 204 |     pub fn check_function_definition(&mut self, mut pos: usize) -> Option<usize> {
[INFO] [stdout]     |                                                 ----^^^
[INFO] [stdout]     |                                                 |
[INFO] [stdout]     |                                                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:801:13
[INFO] [stdout]     |
[INFO] [stdout] 801 |         let mut last_pos = pos;
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `parser` (bin "parser"); 30 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/9b5e8b16bd1c4acf4cf8e6880368314cf021a987/bin/rustc --crate-name parser --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values())' -C metadata=1153fb06ae0b0045 -C extra-filename=-e6adb9ff1634f4f9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid -Dtail-expr-drop-order` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "9e2c928ca629a3d43378093f0f059f80528ef34ace9437c2ad281a4bb4ac890c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e2c928ca629a3d43378093f0f059f80528ef34ace9437c2ad281a4bb4ac890c", kill_on_drop: false }`
[INFO] [stdout] 9e2c928ca629a3d43378093f0f059f80528ef34ace9437c2ad281a4bb4ac890c