[INFO] fetching crate lua_engine 0.1.1...
[INFO] checking lua_engine-0.1.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate lua_engine 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate lua_engine 0.1.1
[INFO] finished tweaking crates.io crate lua_engine 0.1.1
[INFO] tweaked toml for crates.io crate lua_engine 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate lua_engine 0.1.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lua_engine_macros v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bdf37a9227e961972f5635cc0e9ee386b90d21e3117aaa80f6f06389f963f740
[INFO] running `Command { std: "docker" "start" "-a" "bdf37a9227e961972f5635cc0e9ee386b90d21e3117aaa80f6f06389f963f740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdf37a9227e961972f5635cc0e9ee386b90d21e3117aaa80f6f06389f963f740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdf37a9227e961972f5635cc0e9ee386b90d21e3117aaa80f6f06389f963f740", kill_on_drop: false }`
[INFO] [stdout] bdf37a9227e961972f5635cc0e9ee386b90d21e3117aaa80f6f06389f963f740
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02f4b7b73749c848ffbe13df663c4e02f78cf491570306559520a155f95b4272
[INFO] running `Command { std: "docker" "start" "-a" "02f4b7b73749c848ffbe13df663c4e02f78cf491570306559520a155f95b4272", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling lua_engine_macros v0.1.0
[INFO] [stderr]     Checking lua_engine v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:189:24
[INFO] [stdout]     |
[INFO] [stdout] 189 |                     if let Some(other_character) = self.peek_char() && other_character == '=' {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:198:24
[INFO] [stdout]     |
[INFO] [stdout] 198 |                     if let Some(other_character) = self.peek_char() && other_character == '=' {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:202:29
[INFO] [stdout]     |
[INFO] [stdout] 202 |                     else if let Some(other_character) = self.peek_char() && other_character == '<' {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:210:24
[INFO] [stdout]     |
[INFO] [stdout] 210 |                     if let Some(other_character) = self.peek_char() && other_character == '=' {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:214:29
[INFO] [stdout]     |
[INFO] [stdout] 214 |                     else if let Some(other_character) = self.peek_char() && other_character == '>' {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:224:35
[INFO] [stdout]     |
[INFO] [stdout] 224 | ...                   while let Some(ch) = self.ch && ch != '\n' {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:277:15
[INFO] [stdout]     |
[INFO] [stdout] 277 |         while let Some(ch) = self.ch && ch.is_whitespace() {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:324:16
[INFO] [stdout]     |
[INFO] [stdout] 324 |             if let Some(next_char) = self.peek_char() && ch == '0' && next_char == 'x' {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/evaluation/typing.rs:94:16
[INFO] [stdout]    |
[INFO] [stdout] 94 |             if let Value::Boolean(l) = self && let Value::Boolean(r) = val{
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/evaluation/typing.rs:94:48
[INFO] [stdout]    |
[INFO] [stdout] 94 |             if let Value::Boolean(l) = self && let Value::Boolean(r) = val{
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/evaluation/typing.rs:99:16
[INFO] [stdout]    |
[INFO] [stdout] 99 |             if let Value::Number(NumberType::Int(l)) = self && let Value::Number(NumberType::Int(r)) = val{
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/evaluation/typing.rs:99:64
[INFO] [stdout]    |
[INFO] [stdout] 99 |             if let Value::Number(NumberType::Int(l)) = self && let Value::Number(NumberType::Int(r)) = val{
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/evaluation/typing.rs:113:16
[INFO] [stdout]     |
[INFO] [stdout] 113 |             if let Value::Number(NumberType::Int(l)) = self && let Value::Number(NumberType::Int(r)) = val{
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/evaluation/typing.rs:113:64
[INFO] [stdout]     |
[INFO] [stdout] 113 |             if let Value::Number(NumberType::Int(l)) = self && let Value::Number(NumberType::Int(r)) = val{
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/evaluation/typing.rs:129:16
[INFO] [stdout]     |
[INFO] [stdout] 129 |             if let Value::Number(NumberType::Int(l)) = self && let Value::Number(NumberType::Int(r)) = val{
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/evaluation/typing.rs:129:64
[INFO] [stdout]     |
[INFO] [stdout] 129 |             if let Value::Number(NumberType::Int(l)) = self && let Value::Number(NumberType::Int(r)) = val{
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:189:24
[INFO] [stdout]     |
[INFO] [stdout] 189 |                     if let Some(other_character) = self.peek_char() && other_character == '=' {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:198:24
[INFO] [stdout]     |
[INFO] [stdout] 198 |                     if let Some(other_character) = self.peek_char() && other_character == '=' {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:202:29
[INFO] [stdout]     |
[INFO] [stdout] 202 |                     else if let Some(other_character) = self.peek_char() && other_character == '<' {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:210:24
[INFO] [stdout]     |
[INFO] [stdout] 210 |                     if let Some(other_character) = self.peek_char() && other_character == '=' {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:214:29
[INFO] [stdout]     |
[INFO] [stdout] 214 |                     else if let Some(other_character) = self.peek_char() && other_character == '>' {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:224:35
[INFO] [stdout]     |
[INFO] [stdout] 224 | ...                   while let Some(ch) = self.ch && ch != '\n' {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:277:15
[INFO] [stdout]     |
[INFO] [stdout] 277 |         while let Some(ch) = self.ch && ch.is_whitespace() {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/parsing/lexer.rs:324:16
[INFO] [stdout]     |
[INFO] [stdout] 324 |             if let Some(next_char) = self.peek_char() && ch == '0' && next_char == 'x' {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/evaluation/typing.rs:94:16
[INFO] [stdout]    |
[INFO] [stdout] 94 |             if let Value::Boolean(l) = self && let Value::Boolean(r) = val{
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/evaluation/typing.rs:94:48
[INFO] [stdout]    |
[INFO] [stdout] 94 |             if let Value::Boolean(l) = self && let Value::Boolean(r) = val{
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/evaluation/typing.rs:99:16
[INFO] [stdout]    |
[INFO] [stdout] 99 |             if let Value::Number(NumberType::Int(l)) = self && let Value::Number(NumberType::Int(r)) = val{
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/evaluation/typing.rs:99:64
[INFO] [stdout]    |
[INFO] [stdout] 99 |             if let Value::Number(NumberType::Int(l)) = self && let Value::Number(NumberType::Int(r)) = val{
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/evaluation/typing.rs:113:16
[INFO] [stdout]     |
[INFO] [stdout] 113 |             if let Value::Number(NumberType::Int(l)) = self && let Value::Number(NumberType::Int(r)) = val{
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/evaluation/typing.rs:113:64
[INFO] [stdout]     |
[INFO] [stdout] 113 |             if let Value::Number(NumberType::Int(l)) = self && let Value::Number(NumberType::Int(r)) = val{
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/evaluation/typing.rs:129:16
[INFO] [stdout]     |
[INFO] [stdout] 129 |             if let Value::Number(NumberType::Int(l)) = self && let Value::Number(NumberType::Int(r)) = val{
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/evaluation/typing.rs:129:64
[INFO] [stdout]     |
[INFO] [stdout] 129 |             if let Value::Number(NumberType::Int(l)) = self && let Value::Number(NumberType::Int(r)) = val{
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret`
[INFO] [stdout]    --> src/parsing/parser.rs:749:13
[INFO] [stdout]     |
[INFO] [stdout] 749 |         let ret = stmt.as_any().downcast_ref::<ReturnStatement>().unwrap();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lua_engine` (lib test) due to 16 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `lua_engine` (lib) due to 16 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "02f4b7b73749c848ffbe13df663c4e02f78cf491570306559520a155f95b4272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02f4b7b73749c848ffbe13df663c4e02f78cf491570306559520a155f95b4272", kill_on_drop: false }`
[INFO] [stdout] 02f4b7b73749c848ffbe13df663c4e02f78cf491570306559520a155f95b4272