[INFO] cloning repository https://github.com/reidswan/monkey-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reidswan/monkey-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Fmonkey-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Fmonkey-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2a1dcbf90bf6f62739b657aae3e1c710ee48efc1 [INFO] checking reidswan/monkey-rs against master#e23ae72ac7a393961886ea62df065ebb6def7d51 for pr-126571 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Fmonkey-rs" "/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/reidswan/monkey-rs on toolchain e23ae72ac7a393961886ea62df065ebb6def7d51 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e23ae72ac7a393961886ea62df065ebb6def7d51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/reidswan/monkey-rs [INFO] finished tweaking git repo https://github.com/reidswan/monkey-rs [INFO] tweaked toml for git repo https://github.com/reidswan/monkey-rs written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/reidswan/monkey-rs 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" "+e23ae72ac7a393961886ea62df065ebb6def7d51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking reidswan/monkey-rs against try#397f8958d101b259f6baaf92d107d770c95c3ce0 for pr-126571 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Fmonkey-rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/reidswan/monkey-rs on toolchain 397f8958d101b259f6baaf92d107d770c95c3ce0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/reidswan/monkey-rs [INFO] finished tweaking git repo https://github.com/reidswan/monkey-rs [INFO] tweaked toml for git repo https://github.com/reidswan/monkey-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/reidswan/monkey-rs 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" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking reidswan/monkey-rs against try#397f8958d101b259f6baaf92d107d770c95c3ce0 for pr-126571 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Fmonkey-rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/reidswan/monkey-rs on toolchain 397f8958d101b259f6baaf92d107d770c95c3ce0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/reidswan/monkey-rs [INFO] finished tweaking git repo https://github.com/reidswan/monkey-rs [INFO] tweaked toml for git repo https://github.com/reidswan/monkey-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/reidswan/monkey-rs 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" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 09ab5c8efff1cc6fd26bad82c17d66d0a20951b43046abdad0f61aa81531eb2c [INFO] running `Command { std: "docker" "start" "-a" "09ab5c8efff1cc6fd26bad82c17d66d0a20951b43046abdad0f61aa81531eb2c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "09ab5c8efff1cc6fd26bad82c17d66d0a20951b43046abdad0f61aa81531eb2c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "09ab5c8efff1cc6fd26bad82c17d66d0a20951b43046abdad0f61aa81531eb2c", kill_on_drop: false }` [INFO] [stdout] 09ab5c8efff1cc6fd26bad82c17d66d0a20951b43046abdad0f61aa81531eb2c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6c28d300e96dd18a62cc9834c048d2f076cd3605640a26f1f0d75ed1770e5fff [INFO] running `Command { std: "docker" "start" "-a" "6c28d300e96dd18a62cc9834c048d2f076cd3605640a26f1f0d75ed1770e5fff", kill_on_drop: false }` [INFO] [stderr] Checking monkey-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Parser` is never constructed [INFO] [stdout] --> src/parser/mod.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct Parser<'a> { [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:20:8 [INFO] [stdout] | [INFO] [stdout] 19 | impl<'a> Parser<'a> { [INFO] [stdout] | ------------------- associated items in this implementation [INFO] [stdout] 20 | fn new(l: lexer::Lexer<'a>) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | fn parse(&mut self) -> Program { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | fn parse_statement(&mut self) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 54 | fn parse_let_statement(&mut self, start: Token) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 72 | fn expect_peek(&'a mut self, typ: TokenType) -> Result<&'a Token, ParseError> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 84 | fn peek(&'a mut self) -> Result<&'a Token, ParseError> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 91 | fn expect_next(&mut self, typ: TokenType) -> Result { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 103 | fn next(&mut self) -> Result { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `statements` and `errors` are never read [INFO] [stdout] --> src/parser/ast.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Program { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 6 | pub statements: Vec, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 7 | pub errors: Vec, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `LetStatement` is never constructed [INFO] [stdout] --> src/parser/ast.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 11 | pub enum Statement { [INFO] [stdout] | --------- variant in this enum [INFO] [stdout] 12 | LetStatement { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Dummy` is never constructed [INFO] [stdout] --> src/parser/ast.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 20 | pub enum Expression { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 21 | Dummy, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `token` and `value` are never read [INFO] [stdout] --> src/parser/ast.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 25 | pub struct Identifier { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 26 | pub token: tokens::Token, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 27 | pub value: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Identifier` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/parser/mod.rs:145:13 [INFO] [stdout] | [INFO] [stdout] 145 | _ => panic!("not a let statement"), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `expect_peek` and `peek` are never used [INFO] [stdout] --> src/parser/mod.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 19 | impl<'a> Parser<'a> { [INFO] [stdout] | ------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 72 | fn expect_peek(&'a mut self, typ: TokenType) -> Result<&'a Token, ParseError> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 84 | fn peek(&'a mut self) -> Result<&'a Token, ParseError> { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `token` and `value` are never read [INFO] [stdout] --> src/parser/ast.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 12 | LetStatement { [INFO] [stdout] | ------------ fields in this variant [INFO] [stdout] 13 | token: tokens::Token, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 14 | identifier: Identifier, [INFO] [stdout] 15 | value: Expression, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `token` is never read [INFO] [stdout] --> src/parser/ast.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 25 | pub struct Identifier { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 26 | pub token: tokens::Token, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Identifier` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s [INFO] running `Command { std: "docker" "inspect" "6c28d300e96dd18a62cc9834c048d2f076cd3605640a26f1f0d75ed1770e5fff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c28d300e96dd18a62cc9834c048d2f076cd3605640a26f1f0d75ed1770e5fff", kill_on_drop: false }` [INFO] [stdout] 6c28d300e96dd18a62cc9834c048d2f076cd3605640a26f1f0d75ed1770e5fff