[INFO] cloning repository https://github.com/zachpeterson13/monkey-interpreter [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zachpeterson13/monkey-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzachpeterson13%2Fmonkey-interpreter", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzachpeterson13%2Fmonkey-interpreter'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0a8cc54d08f6af4e42fdd453755507de34a060de [INFO] building zachpeterson13/monkey-interpreter 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%2Fzachpeterson13%2Fmonkey-interpreter" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/zachpeterson13/monkey-interpreter 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/zachpeterson13/monkey-interpreter [INFO] finished tweaking git repo https://github.com/zachpeterson13/monkey-interpreter [INFO] tweaked toml for git repo https://github.com/zachpeterson13/monkey-interpreter written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/zachpeterson13/monkey-interpreter 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c86db9382b07e88a170b013647dd7ba2b188929660c2e615c99c2c733ce15cf8 [INFO] running `Command { std: "docker" "start" "-a" "c86db9382b07e88a170b013647dd7ba2b188929660c2e615c99c2c733ce15cf8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c86db9382b07e88a170b013647dd7ba2b188929660c2e615c99c2c733ce15cf8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c86db9382b07e88a170b013647dd7ba2b188929660c2e615c99c2c733ce15cf8", kill_on_drop: false }` [INFO] [stdout] c86db9382b07e88a170b013647dd7ba2b188929660c2e615c99c2c733ce15cf8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 28dafb6f60b64079343828a2a2cf3eb8644f33d38a9f2fb50c0f1ec3ef33fa2a [INFO] running `Command { std: "docker" "start" "-a" "28dafb6f60b64079343828a2a2cf3eb8644f33d38a9f2fb50c0f1ec3ef33fa2a", kill_on_drop: false }` [INFO] [stderr] Compiling monkey v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Parser` is never constructed [INFO] [stdout] --> src/parser/mod.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Parser { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/parser/mod.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 14 | impl Parser { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 15 | fn new(lexer: Lexer) -> Parser { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | fn errors(&self) -> &[String] { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | fn peek_error(&mut self, tok: &Token) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | fn no_prefix_parse_error(&mut self, tok: &Token) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 48 | fn next_token(&mut self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | fn parse_program(&mut self) -> ast::Program { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 67 | fn parse_statement(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 79 | fn parse_let_statement(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 105 | fn parse_return_statement(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 119 | fn parse_expression_statement(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 129 | fn parse_expression(&mut self, precedence: Precedence) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 150 | fn cur_token_is(&self, tok: Token) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 162 | fn peek_token_is(&self, tok: &Token) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 174 | fn expect_peek(&mut self, tok: &Token) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 184 | fn cur_precedence(&self) -> Precedence { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 194 | fn peek_precedence(&self) -> Precedence { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 204 | fn prefix_parse(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 226 | fn parse_prefix_expression(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 238 | fn infix_parse(&mut self, left: ast::Expression) -> Option { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 257 | fn parse_infix_expression(&mut self, left: ast::Expression) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Precedence` is never used [INFO] [stdout] --> src/parser/mod.rs:272:6 [INFO] [stdout] | [INFO] [stdout] 272 | enum Precedence { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s [INFO] running `Command { std: "docker" "inspect" "28dafb6f60b64079343828a2a2cf3eb8644f33d38a9f2fb50c0f1ec3ef33fa2a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "28dafb6f60b64079343828a2a2cf3eb8644f33d38a9f2fb50c0f1ec3ef33fa2a", kill_on_drop: false }` [INFO] [stdout] 28dafb6f60b64079343828a2a2cf3eb8644f33d38a9f2fb50c0f1ec3ef33fa2a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 855adb27bf72a55ec1391d7c6787066e2a99922768451603bbbe08f79e9ef2ad [INFO] running `Command { std: "docker" "start" "-a" "855adb27bf72a55ec1391d7c6787066e2a99922768451603bbbe08f79e9ef2ad", kill_on_drop: false }` [INFO] [stderr] Compiling monkey v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant `Call` is never constructed [INFO] [stdout] --> src/parser/mod.rs:279:5 [INFO] [stdout] | [INFO] [stdout] 272 | enum Precedence { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 279 | Call, // myFunc(X) [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s [INFO] running `Command { std: "docker" "inspect" "855adb27bf72a55ec1391d7c6787066e2a99922768451603bbbe08f79e9ef2ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "855adb27bf72a55ec1391d7c6787066e2a99922768451603bbbe08f79e9ef2ad", kill_on_drop: false }` [INFO] [stdout] 855adb27bf72a55ec1391d7c6787066e2a99922768451603bbbe08f79e9ef2ad