[INFO] cloning repository https://github.com/mihyaeru21/monkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mihyaeru21/monkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmihyaeru21%2Fmonkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmihyaeru21%2Fmonkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bde6a0a700c1f24ce9c69c0a34abcb2285964561
[INFO] checking mihyaeru21/monkey against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmihyaeru21%2Fmonkey" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mihyaeru21/monkey on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/mihyaeru21/monkey
[INFO] finished tweaking git repo https://github.com/mihyaeru21/monkey
[INFO] tweaked toml for git repo https://github.com/mihyaeru21/monkey written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mihyaeru21/monkey 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e84ee925a2c4ff09280a1555c56313c8b1e7b5ed7e720c62dbce4e0403aa1997
[INFO] running `Command { std: "docker" "start" "-a" "e84ee925a2c4ff09280a1555c56313c8b1e7b5ed7e720c62dbce4e0403aa1997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e84ee925a2c4ff09280a1555c56313c8b1e7b5ed7e720c62dbce4e0403aa1997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e84ee925a2c4ff09280a1555c56313c8b1e7b5ed7e720c62dbce4e0403aa1997", kill_on_drop: false }`
[INFO] [stdout] e84ee925a2c4ff09280a1555c56313c8b1e7b5ed7e720c62dbce4e0403aa1997
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7047f5b664316ec8318c1d5e576eda25cfd24c6aa9afdec55d75e83145216c1e
[INFO] running `Command { std: "docker" "start" "-a" "7047f5b664316ec8318c1d5e576eda25cfd24c6aa9afdec55d75e83145216c1e", kill_on_drop: false }`
[INFO] [stderr]     Checking monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |         'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 131 |         'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stdout]     |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:145:12
[INFO] [stdout]     |
[INFO] [stdout] 145 |         '0'...'9' => true,
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |         'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 131 |         'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stdout]     |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:145:12
[INFO] [stdout]     |
[INFO] [stdout] 145 |         '0'...'9' => true,
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/parser/tests.rs:7:70
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn test(input: &str, expected_identifier: &str, expected_value: &Any) {
[INFO] [stdout]   |                                                                      ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn test(input: &str, expected_identifier: &str, expected_value: &dyn Any) {
[INFO] [stdout]   |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/tests.rs:25:37
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn test(input: &str, expected: &Any) {
[INFO] [stdout]    |                                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn test(input: &str, expected: &dyn Any) {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:101:44
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn test(input: &str, op: &str, right: &Any) {
[INFO] [stdout]     |                                            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn test(input: &str, op: &str, right: &dyn Any) {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:128:33
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn test(input: &str, left: &Any, op: &str, right: &Any) {
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn test(input: &str, left: &dyn Any, op: &str, right: &Any) {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:128:56
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn test(input: &str, left: &Any, op: &str, right: &Any) {
[INFO] [stdout]     |                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn test(input: &str, left: &Any, op: &str, right: &dyn Any) {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:405:90
[INFO] [stdout]     |
[INFO] [stdout] 405 | fn test_let_statement(statement: &Statement, expected_identifier: &str, expected_value: &Any) {
[INFO] [stdout]     |                                                                                          ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 405 | fn test_let_statement(statement: &Statement, expected_identifier: &str, expected_value: &dyn Any) {
[INFO] [stdout]     |                                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:418:60
[INFO] [stdout]     |
[INFO] [stdout] 418 | fn test_return_statement(statement: &Statement, expected: &Any) {
[INFO] [stdout]     |                                                            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 418 | fn test_return_statement(statement: &Statement, expected: &dyn Any) {
[INFO] [stdout]     |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:468:76
[INFO] [stdout]     |
[INFO] [stdout] 468 | fn test_prefix_expression(expression: &Expression, operator: &str, right: &Any) {
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 468 | fn test_prefix_expression(expression: &Expression, operator: &str, right: &dyn Any) {
[INFO] [stdout]     |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:477:58
[INFO] [stdout]     |
[INFO] [stdout] 477 | fn test_infix_expression(expression: &Expression, left: &Any, operator: &str, right: &Any) {
[INFO] [stdout]     |                                                          ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 477 | fn test_infix_expression(expression: &Expression, left: &dyn Any, operator: &str, right: &Any) {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:477:87
[INFO] [stdout]     |
[INFO] [stdout] 477 | fn test_infix_expression(expression: &Expression, left: &Any, operator: &str, right: &Any) {
[INFO] [stdout]     |                                                                                       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 477 | fn test_infix_expression(expression: &Expression, left: &Any, operator: &str, right: &dyn Any) {
[INFO] [stdout]     |                                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub struct ExpressionStatement {
[INFO] [stdout]     |            ------------------- field in this struct
[INFO] [stdout] 106 |     pub token: Token, // 式の最初のtoken
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ExpressionStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub struct BlockStatement {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 118 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BlockStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub struct StringLiteral {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 157 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StringLiteral` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 168 | pub struct PrefixExpression {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] 169 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PrefixExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub struct InfixExpression {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 182 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InfixExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 195 | pub struct Boolean {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 196 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Boolean` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub struct IfExpression {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 208 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IfExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 245 | pub struct CallExpression {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 246 |     pub token: Token, // (
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CallExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub struct ExpressionStatement {
[INFO] [stdout]     |            ------------------- field in this struct
[INFO] [stdout] 106 |     pub token: Token, // 式の最初のtoken
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ExpressionStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub struct BlockStatement {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 118 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BlockStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub struct StringLiteral {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 157 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StringLiteral` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 168 | pub struct PrefixExpression {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] 169 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PrefixExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub struct InfixExpression {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 182 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InfixExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub struct IfExpression {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 208 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IfExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 245 | pub struct CallExpression {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 246 |     pub token: Token, // (
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CallExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "7047f5b664316ec8318c1d5e576eda25cfd24c6aa9afdec55d75e83145216c1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7047f5b664316ec8318c1d5e576eda25cfd24c6aa9afdec55d75e83145216c1e", kill_on_drop: false }`
[INFO] [stdout] 7047f5b664316ec8318c1d5e576eda25cfd24c6aa9afdec55d75e83145216c1e
[INFO] checking mihyaeru21/monkey against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmihyaeru21%2Fmonkey" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mihyaeru21/monkey on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/mihyaeru21/monkey
[INFO] finished tweaking git repo https://github.com/mihyaeru21/monkey
[INFO] tweaked toml for git repo https://github.com/mihyaeru21/monkey written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mihyaeru21/monkey 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc815eb9de80672e431595a4efc5e3a94782bcc830e1e7c42eb95106c987d29b
[INFO] running `Command { std: "docker" "start" "-a" "bc815eb9de80672e431595a4efc5e3a94782bcc830e1e7c42eb95106c987d29b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc815eb9de80672e431595a4efc5e3a94782bcc830e1e7c42eb95106c987d29b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc815eb9de80672e431595a4efc5e3a94782bcc830e1e7c42eb95106c987d29b", kill_on_drop: false }`
[INFO] [stdout] bc815eb9de80672e431595a4efc5e3a94782bcc830e1e7c42eb95106c987d29b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d18b130e2190bdff5e4c41ace7e46e3f27bc06a8a84b35fdd01f0db3c648e99
[INFO] running `Command { std: "docker" "start" "-a" "5d18b130e2190bdff5e4c41ace7e46e3f27bc06a8a84b35fdd01f0db3c648e99", kill_on_drop: false }`
[INFO] [stderr]     Checking monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |         'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 131 |         'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stdout]     |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:145:12
[INFO] [stdout]     |
[INFO] [stdout] 145 |         '0'...'9' => true,
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |         'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 131 |         'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stdout]     |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:145:12
[INFO] [stdout]     |
[INFO] [stdout] 145 |         '0'...'9' => true,
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/parser/tests.rs:7:70
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn test(input: &str, expected_identifier: &str, expected_value: &Any) {
[INFO] [stdout]   |                                                                      ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn test(input: &str, expected_identifier: &str, expected_value: &dyn Any) {
[INFO] [stdout]   |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/tests.rs:25:37
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn test(input: &str, expected: &Any) {
[INFO] [stdout]    |                                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn test(input: &str, expected: &dyn Any) {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:101:44
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn test(input: &str, op: &str, right: &Any) {
[INFO] [stdout]     |                                            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn test(input: &str, op: &str, right: &dyn Any) {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:128:33
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn test(input: &str, left: &Any, op: &str, right: &Any) {
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn test(input: &str, left: &dyn Any, op: &str, right: &Any) {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:128:56
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn test(input: &str, left: &Any, op: &str, right: &Any) {
[INFO] [stdout]     |                                                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn test(input: &str, left: &Any, op: &str, right: &dyn Any) {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:405:90
[INFO] [stdout]     |
[INFO] [stdout] 405 | fn test_let_statement(statement: &Statement, expected_identifier: &str, expected_value: &Any) {
[INFO] [stdout]     |                                                                                          ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 405 | fn test_let_statement(statement: &Statement, expected_identifier: &str, expected_value: &dyn Any) {
[INFO] [stdout]     |                                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:418:60
[INFO] [stdout]     |
[INFO] [stdout] 418 | fn test_return_statement(statement: &Statement, expected: &Any) {
[INFO] [stdout]     |                                                            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 418 | fn test_return_statement(statement: &Statement, expected: &dyn Any) {
[INFO] [stdout]     |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:468:76
[INFO] [stdout]     |
[INFO] [stdout] 468 | fn test_prefix_expression(expression: &Expression, operator: &str, right: &Any) {
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 468 | fn test_prefix_expression(expression: &Expression, operator: &str, right: &dyn Any) {
[INFO] [stdout]     |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:477:58
[INFO] [stdout]     |
[INFO] [stdout] 477 | fn test_infix_expression(expression: &Expression, left: &Any, operator: &str, right: &Any) {
[INFO] [stdout]     |                                                          ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 477 | fn test_infix_expression(expression: &Expression, left: &dyn Any, operator: &str, right: &Any) {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/tests.rs:477:87
[INFO] [stdout]     |
[INFO] [stdout] 477 | fn test_infix_expression(expression: &Expression, left: &Any, operator: &str, right: &Any) {
[INFO] [stdout]     |                                                                                       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 477 | fn test_infix_expression(expression: &Expression, left: &Any, operator: &str, right: &dyn Any) {
[INFO] [stdout]     |                                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub struct ExpressionStatement {
[INFO] [stdout]     |            ------------------- field in this struct
[INFO] [stdout] 106 |     pub token: Token, // 式の最初のtoken
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ExpressionStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub struct BlockStatement {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 118 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BlockStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub struct StringLiteral {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 157 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StringLiteral` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 168 | pub struct PrefixExpression {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] 169 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PrefixExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub struct InfixExpression {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 182 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InfixExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 195 | pub struct Boolean {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 196 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Boolean` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub struct IfExpression {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 208 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IfExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 245 | pub struct CallExpression {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 246 |     pub token: Token, // (
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CallExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/evaluator/mod.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn eval_bang_operator(right: Rc<Object>) -> Result<Rc<Object>> {
[INFO] [stdout]     |                       ----------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 130 |     Ok(Rc::new(Object::Boolean(res)))
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]     = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/evaluator/mod.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let res = match operator {
[INFO] [stdout]     |         --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 177 |     Ok(Rc::new(res))
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/evaluator/mod.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let res = match operator {
[INFO] [stdout]     |         --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 191 |     Ok(Rc::new(res))
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:125:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let value = self.parse_expression(Precedence::Lowest)?;
[INFO] [stdout]     |             ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 125 |         Ok(LetStatement { token, name, value })
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 133 |           let return_value = self.parse_expression(Precedence::Lowest)?;
[INFO] [stdout]     |               ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 139 |           Ok(ReturnStatement {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 140 | |             token,
[INFO] [stdout] 141 | |             return_value,
[INFO] [stdout] 142 | |         })
[INFO] [stdout]     | |         ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |_________|
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let expression = self.parse_expression(Precedence::Lowest)?;
[INFO] [stdout]     |             ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 153 |         Ok(ExpressionStatement { token, expression })
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let mut statements = Vec::new();
[INFO] [stdout]     |                 ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 167 |         Ok(BlockStatement { token, statements })
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:246:12
[INFO] [stdout]     |
[INFO] [stdout] 244 |           let right = self.parse_expression(Precedence::Prefix)?;
[INFO] [stdout]     |               ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 245 |
[INFO] [stdout] 246 |           Ok(PrefixExpression {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 247 | |             token,
[INFO] [stdout] 248 | |             operator,
[INFO] [stdout] 249 | |             right: Box::new(right),
[INFO] [stdout] 250 | |         })
[INFO] [stdout]     | |         ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |_________|
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:261:12
[INFO] [stdout]     |
[INFO] [stdout] 253 |       fn parse_infix_expression(&mut self, left: Expression) -> Result<Expression> {
[INFO] [stdout]     |                                            ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 258 |           let right = self.parse_expression(precedence)?;
[INFO] [stdout]     |               ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 261 |           Ok(Expression::Infix(InfixExpression {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 262 | |             token,
[INFO] [stdout] 263 | |             left: Box::new(left),
[INFO] [stdout] 264 | |             operator,
[INFO] [stdout] 265 | |             right: Box::new(right),
[INFO] [stdout] 266 | |         }))
[INFO] [stdout]     | |          ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |__________|
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:316:12
[INFO] [stdout]     |
[INFO] [stdout] 295 |           let condition = self.parse_expression(Precedence::Lowest)?;
[INFO] [stdout]     |               --------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 305 |           let consequence = self.parse_block_statement()?;
[INFO] [stdout]     |               ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 306 |           let alternative = if self.peek_token_is(TokenType::Else) {
[INFO] [stdout]     |               ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 316 |           Ok(IfExpression {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 317 | |             token,
[INFO] [stdout] 318 | |             condition: Box::new(condition),
[INFO] [stdout] 319 | |             consequence: Box::new(Statement::Block(consequence)),
[INFO] [stdout] 320 | |             alternative,
[INFO] [stdout] 321 | |         })
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |_________these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:339:12
[INFO] [stdout]     |
[INFO] [stdout] 337 |           let body = self.parse_block_statement()?;
[INFO] [stdout]     |               ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 338 |
[INFO] [stdout] 339 |           Ok(FunctionLiteral {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 340 | |             token,
[INFO] [stdout] 341 | |             parameters,
[INFO] [stdout] 342 | |             body: Rc::new(body),
[INFO] [stdout] 343 | |         })
[INFO] [stdout]     | |         ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |_________|
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:380:12
[INFO] [stdout]     |
[INFO] [stdout] 377 |       fn parse_call_expression(&mut self, function: Expression) -> Result<Expression> {
[INFO] [stdout]     |                                           -------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 380 |           Ok(Expression::Call(CallExpression {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 381 | |             token,
[INFO] [stdout] 382 | |             function: Box::new(function),
[INFO] [stdout] 383 | |             arguments: self.parse_call_arguments()?,
[INFO] [stdout] 384 | |         }))
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monkey` (bin "monkey") due to 13 previous errors; 11 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub struct ExpressionStatement {
[INFO] [stdout]     |            ------------------- field in this struct
[INFO] [stdout] 106 |     pub token: Token, // 式の最初のtoken
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ExpressionStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub struct BlockStatement {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 118 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BlockStatement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub struct StringLiteral {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 157 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StringLiteral` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 168 | pub struct PrefixExpression {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] 169 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PrefixExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub struct InfixExpression {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 182 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InfixExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub struct IfExpression {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 208 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IfExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 245 | pub struct CallExpression {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 246 |     pub token: Token, // (
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CallExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/evaluator/mod.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn eval_bang_operator(right: Rc<Object>) -> Result<Rc<Object>> {
[INFO] [stdout]     |                       ----------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 130 |     Ok(Rc::new(Object::Boolean(res)))
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]     = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/evaluator/mod.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let res = match operator {
[INFO] [stdout]     |         --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 177 |     Ok(Rc::new(res))
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/evaluator/mod.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let res = match operator {
[INFO] [stdout]     |         --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 191 |     Ok(Rc::new(res))
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:125:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let value = self.parse_expression(Precedence::Lowest)?;
[INFO] [stdout]     |             ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 125 |         Ok(LetStatement { token, name, value })
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 133 |           let return_value = self.parse_expression(Precedence::Lowest)?;
[INFO] [stdout]     |               ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 139 |           Ok(ReturnStatement {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 140 | |             token,
[INFO] [stdout] 141 | |             return_value,
[INFO] [stdout] 142 | |         })
[INFO] [stdout]     | |         ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |_________|
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let expression = self.parse_expression(Precedence::Lowest)?;
[INFO] [stdout]     |             ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 153 |         Ok(ExpressionStatement { token, expression })
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let mut statements = Vec::new();
[INFO] [stdout]     |                 ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 167 |         Ok(BlockStatement { token, statements })
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:246:12
[INFO] [stdout]     |
[INFO] [stdout] 244 |           let right = self.parse_expression(Precedence::Prefix)?;
[INFO] [stdout]     |               ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 245 |
[INFO] [stdout] 246 |           Ok(PrefixExpression {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 247 | |             token,
[INFO] [stdout] 248 | |             operator,
[INFO] [stdout] 249 | |             right: Box::new(right),
[INFO] [stdout] 250 | |         })
[INFO] [stdout]     | |         ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |_________|
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:261:12
[INFO] [stdout]     |
[INFO] [stdout] 253 |       fn parse_infix_expression(&mut self, left: Expression) -> Result<Expression> {
[INFO] [stdout]     |                                            ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 258 |           let right = self.parse_expression(precedence)?;
[INFO] [stdout]     |               ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 261 |           Ok(Expression::Infix(InfixExpression {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 262 | |             token,
[INFO] [stdout] 263 | |             left: Box::new(left),
[INFO] [stdout] 264 | |             operator,
[INFO] [stdout] 265 | |             right: Box::new(right),
[INFO] [stdout] 266 | |         }))
[INFO] [stdout]     | |          ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |__________|
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:316:12
[INFO] [stdout]     |
[INFO] [stdout] 295 |           let condition = self.parse_expression(Precedence::Lowest)?;
[INFO] [stdout]     |               --------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 305 |           let consequence = self.parse_block_statement()?;
[INFO] [stdout]     |               ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 306 |           let alternative = if self.peek_token_is(TokenType::Else) {
[INFO] [stdout]     |               ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 316 |           Ok(IfExpression {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 317 | |             token,
[INFO] [stdout] 318 | |             condition: Box::new(condition),
[INFO] [stdout] 319 | |             consequence: Box::new(Statement::Block(consequence)),
[INFO] [stdout] 320 | |             alternative,
[INFO] [stdout] 321 | |         })
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |         these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |_________these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:339:12
[INFO] [stdout]     |
[INFO] [stdout] 337 |           let body = self.parse_block_statement()?;
[INFO] [stdout]     |               ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 338 |
[INFO] [stdout] 339 |           Ok(FunctionLiteral {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 340 | |             token,
[INFO] [stdout] 341 | |             parameters,
[INFO] [stdout] 342 | |             body: Rc::new(body),
[INFO] [stdout] 343 | |         })
[INFO] [stdout]     | |         ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     | |_________|
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/parser/mod.rs:380:12
[INFO] [stdout]     |
[INFO] [stdout] 377 |       fn parse_call_expression(&mut self, function: Expression) -> Result<Expression> {
[INFO] [stdout]     |                                           -------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 380 |           Ok(Expression::Call(CallExpression {
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 381 | |             token,
[INFO] [stdout] 382 | |             function: Box::new(function),
[INFO] [stdout] 383 | |             arguments: self.parse_call_arguments()?,
[INFO] [stdout] 384 | |         }))
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors; 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monkey` (bin "monkey" test) due to 13 previous errors; 20 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5d18b130e2190bdff5e4c41ace7e46e3f27bc06a8a84b35fdd01f0db3c648e99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d18b130e2190bdff5e4c41ace7e46e3f27bc06a8a84b35fdd01f0db3c648e99", kill_on_drop: false }`
[INFO] [stdout] 5d18b130e2190bdff5e4c41ace7e46e3f27bc06a8a84b35fdd01f0db3c648e99