[INFO] cloning repository https://github.com/shnmorimoto/rmonkey [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shnmorimoto/rmonkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshnmorimoto%2Frmonkey", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshnmorimoto%2Frmonkey'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0dd210bcf83732ae99196e23cc0957d2e75dcc9a [INFO] building shnmorimoto/rmonkey against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshnmorimoto%2Frmonkey" "/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/shnmorimoto/rmonkey on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/shnmorimoto/rmonkey [INFO] finished tweaking git repo https://github.com/shnmorimoto/rmonkey [INFO] tweaked toml for git repo https://github.com/shnmorimoto/rmonkey written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/shnmorimoto/rmonkey 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 65e316f0817309fc9f9075ffdb95ee67059d0b8274429c0b76f152949b4be3fc [INFO] running `Command { std: "docker" "start" "-a" "65e316f0817309fc9f9075ffdb95ee67059d0b8274429c0b76f152949b4be3fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "65e316f0817309fc9f9075ffdb95ee67059d0b8274429c0b76f152949b4be3fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "65e316f0817309fc9f9075ffdb95ee67059d0b8274429c0b76f152949b4be3fc", kill_on_drop: false }` [INFO] [stdout] 65e316f0817309fc9f9075ffdb95ee67059d0b8274429c0b76f152949b4be3fc [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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e90a285c7da21c87f1aedd810939ecfe93eaffed41b9d95e01483521d456929d [INFO] running `Command { std: "docker" "start" "-a" "e90a285c7da21c87f1aedd810939ecfe93eaffed41b9d95e01483521d456929d", kill_on_drop: false }` [INFO] [stderr] Compiling itertools v0.10.0 [INFO] [stderr] Compiling once_cell v1.7.2 [INFO] [stderr] Compiling rmonkey v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `itertools::Itertools` [INFO] [stdout] --> src/parser.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use itertools::Itertools; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/parser.rs:247:13 [INFO] [stdout] | [INFO] [stdout] 247 | let mut statements: Vec = vec![]; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Let`, `Return`, and `Expression` are never constructed [INFO] [stdout] --> src/ast.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum Statement { [INFO] [stdout] | --------- variants in this enum [INFO] [stdout] 5 | Let { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 9 | Return { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 12 | Expression { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Identifier`, `IntegerLiteral`, `PrefixExpression`, `InfixExpression`, and `Boolean` are never constructed [INFO] [stdout] --> src/ast.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 33 | pub enum Expression { [INFO] [stdout] | ---------- variants in this enum [INFO] [stdout] 34 | Identifier(Ident), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 35 | IntegerLiteral(i64), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 36 | PrefixExpression { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | InfixExpression { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | Boolean(bool), [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Expression` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/ast.rs:72:12 [INFO] [stdout] | [INFO] [stdout] 71 | impl Ident { [INFO] [stdout] | ---------- associated function in this implementation [INFO] [stdout] 72 | pub fn new(s: impl Into) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/ast.rs:88:12 [INFO] [stdout] | [INFO] [stdout] 87 | impl Program { [INFO] [stdout] | ------------ associated function in this implementation [INFO] [stdout] 88 | pub fn new(statements: Vec) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Precedence` is never used [INFO] [stdout] --> src/parser.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | enum Precedence { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `get_precedence` is never used [INFO] [stdout] --> src/parser.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 17 | impl Precedence { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 18 | fn get_precedence(token: TokenType) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Parser` is never constructed [INFO] [stdout] --> src/parser.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | struct Parser { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/parser.rs:41:8 [INFO] [stdout] | [INFO] [stdout] 40 | impl Parser { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 41 | fn new(mut lexer: Lexer) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 54 | fn peek_precedence(&self) -> Precedence { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | fn cur_precedence(&self) -> Precedence { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 62 | fn peek_error(&mut self, t: TokenType) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 70 | fn next_token(&mut self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 75 | fn parse_statement(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 89 | fn parse_let_statement(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 109 | fn parse_return_statement(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 121 | fn parse_expression_statement(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 134 | fn parse_expression(&mut self, precdence: Precedence) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 178 | fn parse_grouped_expression(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 187 | fn parse_boolean(&self) -> Expression { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 191 | fn parse_infix_expression(&mut self, left: &Expression) -> Expression { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 203 | fn no_prefix_parse_error(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 211 | fn parse_prefix_expression(&mut self) -> Expression { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 220 | fn parse_identifier(&self) -> Expression { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 224 | fn parse_integer_literal(&self) -> Expression { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 228 | fn cur_token_is(&self, t: TokenType) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 232 | fn peek_token_is(&self, t: TokenType) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 236 | fn expect_peek(&mut self, t: TokenType) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 246 | fn parser_program(&mut self) -> Program { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.15s [INFO] running `Command { std: "docker" "inspect" "e90a285c7da21c87f1aedd810939ecfe93eaffed41b9d95e01483521d456929d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e90a285c7da21c87f1aedd810939ecfe93eaffed41b9d95e01483521d456929d", kill_on_drop: false }` [INFO] [stdout] e90a285c7da21c87f1aedd810939ecfe93eaffed41b9d95e01483521d456929d [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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cc8e809db622dbae09c00304de1d6f10502d03931c8e38d4631b7a406d9adc99 [INFO] running `Command { std: "docker" "start" "-a" "cc8e809db622dbae09c00304de1d6f10502d03931c8e38d4631b7a406d9adc99", kill_on_drop: false }` [INFO] [stderr] Compiling rmonkey v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/parser.rs:247:13 [INFO] [stdout] | [INFO] [stdout] 247 | let mut statements: Vec = vec![]; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `CALL` is never constructed [INFO] [stdout] --> src/parser.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 7 | enum Precedence { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 14 | CALL, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Precedence` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Str` is never constructed [INFO] [stdout] --> src/parser.rs:267:9 [INFO] [stdout] | [INFO] [stdout] 265 | enum TestValue { [INFO] [stdout] | --------- variant in this enum [INFO] [stdout] 266 | Int(i64), [INFO] [stdout] 267 | Str(String), [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TestValue` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s [INFO] running `Command { std: "docker" "inspect" "cc8e809db622dbae09c00304de1d6f10502d03931c8e38d4631b7a406d9adc99", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc8e809db622dbae09c00304de1d6f10502d03931c8e38d4631b7a406d9adc99", kill_on_drop: false }` [INFO] [stdout] cc8e809db622dbae09c00304de1d6f10502d03931c8e38d4631b7a406d9adc99