[INFO] cloning repository https://github.com/Aiffelowy/robot-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Aiffelowy/robot-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiffelowy%2Frobot-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiffelowy%2Frobot-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1914437bb3381bab4faf8bc5cd599eb72d547965
[INFO] building Aiffelowy/robot-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%2FAiffelowy%2Frobot-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/Aiffelowy/robot-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/Aiffelowy/robot-lang
[INFO] finished tweaking git repo https://github.com/Aiffelowy/robot-lang
[INFO] tweaked toml for git repo https://github.com/Aiffelowy/robot-lang written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Aiffelowy/robot-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] a9f21309da32e0b4722380da9bef20ce6c4fa1ef486a0da738f272864c3c1510
[INFO] running `Command { std: "docker" "start" "-a" "a9f21309da32e0b4722380da9bef20ce6c4fa1ef486a0da738f272864c3c1510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9f21309da32e0b4722380da9bef20ce6c4fa1ef486a0da738f272864c3c1510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9f21309da32e0b4722380da9bef20ce6c4fa1ef486a0da738f272864c3c1510", kill_on_drop: false }`
[INFO] [stdout] a9f21309da32e0b4722380da9bef20ce6c4fa1ef486a0da738f272864c3c1510
[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] e7e0f3a882f98e1bea1ac93a9af139b0e1082f0380b60434042831a67c79d238
[INFO] running `Command { std: "docker" "start" "-a" "e7e0f3a882f98e1bea1ac93a9af139b0e1082f0380b60434042831a67c79d238", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling arm-shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/interpreter.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::symbols::{self, SymbolError, SymbolTableBuilder};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peek` is never used
[INFO] [stdout]   --> src/lexer.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Lexer {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn peek(&self) -> Option<char> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Unknown` is never constructed
[INFO] [stdout]   --> src/symbols.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum Symbol {
[INFO] [stdout]    |      ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 26 |     Unknown
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Symbol` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "e7e0f3a882f98e1bea1ac93a9af139b0e1082f0380b60434042831a67c79d238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7e0f3a882f98e1bea1ac93a9af139b0e1082f0380b60434042831a67c79d238", kill_on_drop: false }`
[INFO] [stdout] e7e0f3a882f98e1bea1ac93a9af139b0e1082f0380b60434042831a67c79d238
[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] 15723307268ee9c8a20b431a97f4046ccaf4413552e94bdaf7bd6b0018ee20c6
[INFO] running `Command { std: "docker" "start" "-a" "15723307268ee9c8a20b431a97f4046ccaf4413552e94bdaf7bd6b0018ee20c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling arm-shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/interpreter.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::symbols::{self, SymbolError, SymbolTableBuilder};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peek` is never used
[INFO] [stdout]   --> src/lexer.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Lexer {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn peek(&self) -> Option<char> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Unknown` is never constructed
[INFO] [stdout]   --> src/symbols.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum Symbol {
[INFO] [stdout]    |      ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 26 |     Unknown
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Symbol` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "15723307268ee9c8a20b431a97f4046ccaf4413552e94bdaf7bd6b0018ee20c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15723307268ee9c8a20b431a97f4046ccaf4413552e94bdaf7bd6b0018ee20c6", kill_on_drop: false }`
[INFO] [stdout] 15723307268ee9c8a20b431a97f4046ccaf4413552e94bdaf7bd6b0018ee20c6