[INFO] cloning repository https://github.com/PiNengShaoNian/rs-monkey-lang [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PiNengShaoNian/rs-monkey-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPiNengShaoNian%2Frs-monkey-lang", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPiNengShaoNian%2Frs-monkey-lang'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6db6d36c5cc5f6a2ada52cf04ab23ec28f248fa2 [INFO] building PiNengShaoNian/rs-monkey-lang 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%2FPiNengShaoNian%2Frs-monkey-lang" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/PiNengShaoNian/rs-monkey-lang 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/PiNengShaoNian/rs-monkey-lang [INFO] finished tweaking git repo https://github.com/PiNengShaoNian/rs-monkey-lang [INFO] tweaked toml for git repo https://github.com/PiNengShaoNian/rs-monkey-lang written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/PiNengShaoNian/rs-monkey-lang 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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 1f8180048fe417bef500b284ff06c8dbf30f0d1fc55999bfb9a3071715376c2d [INFO] running `Command { std: "docker" "start" "-a" "1f8180048fe417bef500b284ff06c8dbf30f0d1fc55999bfb9a3071715376c2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1f8180048fe417bef500b284ff06c8dbf30f0d1fc55999bfb9a3071715376c2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f8180048fe417bef500b284ff06c8dbf30f0d1fc55999bfb9a3071715376c2d", kill_on_drop: false }` [INFO] [stdout] 1f8180048fe417bef500b284ff06c8dbf30f0d1fc55999bfb9a3071715376c2d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] c4a69ed7e8fbb15235a5acb2ab8663e63ed886d51e315a1508bc57496fd956d5 [INFO] running `Command { std: "docker" "start" "-a" "c4a69ed7e8fbb15235a5acb2ab8663e63ed886d51e315a1508bc57496fd956d5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.158 [INFO] [stderr] Compiling bitflags v0.4.0 [INFO] [stderr] Compiling encode_unicode v0.1.3 [INFO] [stderr] Compiling unicode-width v0.1.13 [INFO] [stderr] Compiling nix v0.5.1 [INFO] [stderr] Compiling rustyline v1.0.0 [INFO] [stderr] Compiling rs-monkey-lang v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant `Plus` is never constructed [INFO] [stdout] --> src/ast.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub enum Prefix { [INFO] [stdout] | ------ variant in this enum [INFO] [stdout] 8 | Plus, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Prefix` has derived impls for the traits `Debug` and `Clone`, 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: fields `kind` and `msg` are never read [INFO] [stdout] --> src/parser/mod.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | pub struct ParseError { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 15 | kind: ParseErrorKind, [INFO] [stdout] | ^^^^ [INFO] [stdout] 16 | msg: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ParseError` 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 `dev` profile [unoptimized + debuginfo] target(s) in 5.64s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.4.0 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "c4a69ed7e8fbb15235a5acb2ab8663e63ed886d51e315a1508bc57496fd956d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4a69ed7e8fbb15235a5acb2ab8663e63ed886d51e315a1508bc57496fd956d5", kill_on_drop: false }` [INFO] [stdout] c4a69ed7e8fbb15235a5acb2ab8663e63ed886d51e315a1508bc57496fd956d5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ecc248b4d5e02b98d4a509a777e0d4bba8048d3c4a804ff5744cf5331365b9e7 [INFO] running `Command { std: "docker" "start" "-a" "ecc248b4d5e02b98d4a509a777e0d4bba8048d3c4a804ff5744cf5331365b9e7", kill_on_drop: false }` [INFO] [stderr] Compiling rs-monkey-lang v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant `Plus` is never constructed [INFO] [stdout] --> src/ast.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub enum Prefix { [INFO] [stdout] | ------ variant in this enum [INFO] [stdout] 8 | Plus, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Prefix` has derived impls for the traits `Debug` and `Clone`, 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: fields `kind` and `msg` are never read [INFO] [stdout] --> src/parser/mod.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | pub struct ParseError { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 15 | kind: ParseErrorKind, [INFO] [stdout] | ^^^^ [INFO] [stdout] 16 | msg: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ParseError` 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 0.86s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.4.0 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "ecc248b4d5e02b98d4a509a777e0d4bba8048d3c4a804ff5744cf5331365b9e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ecc248b4d5e02b98d4a509a777e0d4bba8048d3c4a804ff5744cf5331365b9e7", kill_on_drop: false }` [INFO] [stdout] ecc248b4d5e02b98d4a509a777e0d4bba8048d3c4a804ff5744cf5331365b9e7