[INFO] cloning repository https://github.com/gerardabello/rusty-monkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gerardabello/rusty-monkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgerardabello%2Frusty-monkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgerardabello%2Frusty-monkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8fce8f0d3af5893f644a46b200ecf61d4f766ead
[INFO] checking gerardabello/rusty-monkey against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgerardabello%2Frusty-monkey" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gerardabello/rusty-monkey on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gerardabello/rusty-monkey
[INFO] finished tweaking git repo https://github.com/gerardabello/rusty-monkey
[INFO] tweaked toml for git repo https://github.com/gerardabello/rusty-monkey written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/gerardabello/rusty-monkey already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--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-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" "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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f5812b9a3cfb9759e8ce8a148b9ac796bbca2ff938fd917591751d1a8f1133a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9f5812b9a3cfb9759e8ce8a148b9ac796bbca2ff938fd917591751d1a8f1133a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f5812b9a3cfb9759e8ce8a148b9ac796bbca2ff938fd917591751d1a8f1133a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f5812b9a3cfb9759e8ce8a148b9ac796bbca2ff938fd917591751d1a8f1133a", kill_on_drop: false }`
[INFO] [stdout] 9f5812b9a3cfb9759e8ce8a148b9ac796bbca2ff938fd917591751d1a8f1133a
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a32fe40e8f4a4ade24ab37e2c6056767b98ade1ac9d1483868a8c3f9f9d26e2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2a32fe40e8f4a4ade24ab37e2c6056767b98ade1ac9d1483868a8c3f9f9d26e2", kill_on_drop: false }`
[INFO] [stderr]     Checking parser v0.1.0 (/opt/rustwide/workdir/parser)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> parser/src/lexer/mod.rs:235:29
[INFO] [stdout]     |
[INFO] [stdout] 235 |                 _ => panic!(format!("Unexpected character '{}'", c)),
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 235 |                 _ => panic!("Unexpected character '{}'", c),
[INFO] [stdout]     |                            --                            --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> parser/src/lexer/mod.rs:235:29
[INFO] [stdout]     |
[INFO] [stdout] 235 |                 _ => panic!(format!("Unexpected character '{}'", c)),
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 235 |                 _ => panic!("Unexpected character '{}'", c),
[INFO] [stdout]     |                            --                            --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking repl v0.1.0 (/opt/rustwide/workdir/repl)
[INFO] [stderr]     Checking evaluator v0.1.0 (/opt/rustwide/workdir/evaluator)
[INFO] [stderr]     Checking rusty-monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "2a32fe40e8f4a4ade24ab37e2c6056767b98ade1ac9d1483868a8c3f9f9d26e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a32fe40e8f4a4ade24ab37e2c6056767b98ade1ac9d1483868a8c3f9f9d26e2", kill_on_drop: false }`
[INFO] [stdout] 2a32fe40e8f4a4ade24ab37e2c6056767b98ade1ac9d1483868a8c3f9f9d26e2