[INFO] updating cached repository https://github.com/ogata-k/monkey-rs [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d0e520c65e14d0736d14200f0b460dea85e8c67b [INFO] checking ogata-k/monkey-rs against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogata-k%2Fmonkey-rs" "/workspace/builds/worker-6/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ogata-k/monkey-rs on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/ogata-k/monkey-rs [INFO] finished tweaking git repo https://github.com/ogata-k/monkey-rs [INFO] tweaked toml for git repo https://github.com/ogata-k/monkey-rs written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/ogata-k/monkey-rs already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 9219ab9639c71a472e4c1635fa4c6bb06cc3926919e6781b0de6ed03a1e13caf [INFO] running `"docker" "start" "-a" "9219ab9639c71a472e4c1635fa4c6bb06cc3926919e6781b0de6ed03a1e13caf"` [INFO] [stderr] Checking monkey-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary trailing semicolon [INFO] [stderr] --> src/parser.rs:260:9 [INFO] [stderr] | [INFO] [stderr] 260 | ; [INFO] [stderr] | ^ help: remove this semicolon [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary trailing semicolon [INFO] [stderr] --> src/parser.rs:260:9 [INFO] [stderr] | [INFO] [stderr] 260 | ; [INFO] [stderr] | ^ help: remove this semicolon [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: irrefutable while-let pattern [INFO] [stderr] --> src/repl.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 35 | / while let tok = lexer.next_token() { [INFO] [stderr] 36 | | if tok.token_type_is(TokenType::EOF) { [INFO] [stderr] 37 | | break; [INFO] [stderr] 38 | | } [INFO] [stderr] ... | [INFO] [stderr] 43 | | write!(w, "{:?}\n", tok).unwrap(); [INFO] [stderr] 44 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `tok` is never read [INFO] [stderr] --> src/lexer.rs:109:13 [INFO] [stderr] | [INFO] [stderr] 109 | let mut tok: Option = None; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `result` is never read [INFO] [stderr] --> src/evaluator.rs:25:13 [INFO] [stderr] | [INFO] [stderr] 25 | let mut result = Object::NULL; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stmt` [INFO] [stderr] --> src/evaluator.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | / stmt @ Statement::LetStatement { [INFO] [stderr] 35 | | token: _, [INFO] [stderr] 36 | | name: _, [INFO] [stderr] 37 | | value: _, [INFO] [stderr] 38 | | } => unimplemented!(), [INFO] [stderr] | |_____________^ help: if this is intentional, prefix it with an underscore: `_stmt` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `result` is never read [INFO] [stderr] --> src/evaluator.rs:56:13 [INFO] [stderr] | [INFO] [stderr] 56 | let mut result = Object::NULL; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `result` is never read [INFO] [stderr] --> src/evaluator.rs:85:13 [INFO] [stderr] | [INFO] [stderr] 85 | let mut result = Object::NULL; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: method is never used: `peek_token_is_prefix` [INFO] [stderr] --> src/parser.rs:98:5 [INFO] [stderr] | [INFO] [stderr] 98 | fn peek_token_is_prefix(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `peek_prefix_precedence` [INFO] [stderr] --> src/parser.rs:125:5 [INFO] [stderr] | [INFO] [stderr] 125 | fn peek_prefix_precedence(&self) -> Opt { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: irrefutable while-let pattern [INFO] [stderr] --> src/repl.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 35 | / while let tok = lexer.next_token() { [INFO] [stderr] 36 | | if tok.token_type_is(TokenType::EOF) { [INFO] [stderr] 37 | | break; [INFO] [stderr] 38 | | } [INFO] [stderr] ... | [INFO] [stderr] 43 | | write!(w, "{:?}\n", tok).unwrap(); [INFO] [stderr] 44 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `tok` is never read [INFO] [stderr] --> src/lexer.rs:109:13 [INFO] [stderr] | [INFO] [stderr] 109 | let mut tok: Option = None; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `result` is never read [INFO] [stderr] --> src/evaluator.rs:25:13 [INFO] [stderr] | [INFO] [stderr] 25 | let mut result = Object::NULL; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stmt` [INFO] [stderr] --> src/evaluator.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | / stmt @ Statement::LetStatement { [INFO] [stderr] 35 | | token: _, [INFO] [stderr] 36 | | name: _, [INFO] [stderr] 37 | | value: _, [INFO] [stderr] 38 | | } => unimplemented!(), [INFO] [stderr] | |_____________^ help: if this is intentional, prefix it with an underscore: `_stmt` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `result` is never read [INFO] [stderr] --> src/evaluator.rs:56:13 [INFO] [stderr] | [INFO] [stderr] 56 | let mut result = Object::NULL; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `result` is never read [INFO] [stderr] --> src/evaluator.rs:85:13 [INFO] [stderr] | [INFO] [stderr] 85 | let mut result = Object::NULL; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/evaluator.rs:334:13 [INFO] [stderr] | [INFO] [stderr] 334 | let mut lexer = Lexer::new(input); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `peek_token_is_prefix` [INFO] [stderr] --> src/parser.rs:98:5 [INFO] [stderr] | [INFO] [stderr] 98 | fn peek_token_is_prefix(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `peek_prefix_precedence` [INFO] [stderr] --> src/parser.rs:125:5 [INFO] [stderr] | [INFO] [stderr] 125 | fn peek_prefix_precedence(&self) -> Opt { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stderr] --> src/parser.rs:1349:38 [INFO] [stderr] | [INFO] [stderr] 1349 | for (input, expect) in tests.into_iter() { [INFO] [stderr] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(array_into_iter)]` on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #66145 [INFO] [stderr] [INFO] [stderr] warning: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.97s [INFO] running `"docker" "inspect" "9219ab9639c71a472e4c1635fa4c6bb06cc3926919e6781b0de6ed03a1e13caf"` [INFO] running `"docker" "rm" "-f" "9219ab9639c71a472e4c1635fa4c6bb06cc3926919e6781b0de6ed03a1e13caf"` [INFO] [stdout] 9219ab9639c71a472e4c1635fa4c6bb06cc3926919e6781b0de6ed03a1e13caf