[INFO] cloning repository https://github.com/puppynuff/Mocha
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/puppynuff/Mocha" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpuppynuff%2FMocha", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpuppynuff%2FMocha'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 31537435d8dc96d7ca2fdbb29c77c31685428eb4
[INFO] checking puppynuff/Mocha against try#51b1964e35e5e26f8cd938940f0da6f7b5cc54fc for pr-138176
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpuppynuff%2FMocha" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] error: Unable to create '/workspace/builds/worker-3-tc2/source/.git/refs/remotes/origin/HEAD.lock': No such file or directory
[INFO] [stderr] fatal: unable to update refs/remotes/origin/HEAD
[INFO] checking puppynuff/Mocha against try#51b1964e35e5e26f8cd938940f0da6f7b5cc54fc for pr-138176
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpuppynuff%2FMocha" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/puppynuff/Mocha on toolchain 51b1964e35e5e26f8cd938940f0da6f7b5cc54fc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51b1964e35e5e26f8cd938940f0da6f7b5cc54fc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/puppynuff/Mocha
[INFO] finished tweaking git repo https://github.com/puppynuff/Mocha
[INFO] tweaked toml for git repo https://github.com/puppynuff/Mocha written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/puppynuff/Mocha 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" "+51b1964e35e5e26f8cd938940f0da6f7b5cc54fc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+51b1964e35e5e26f8cd938940f0da6f7b5cc54fc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 271902f5d5e4b1bdd4a3ed8af011cbcaacf6dbee2011052977a96fa77e16058f
[INFO] running `Command { std: "docker" "start" "-a" "271902f5d5e4b1bdd4a3ed8af011cbcaacf6dbee2011052977a96fa77e16058f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "271902f5d5e4b1bdd4a3ed8af011cbcaacf6dbee2011052977a96fa77e16058f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "271902f5d5e4b1bdd4a3ed8af011cbcaacf6dbee2011052977a96fa77e16058f", kill_on_drop: false }`
[INFO] [stdout] 271902f5d5e4b1bdd4a3ed8af011cbcaacf6dbee2011052977a96fa77e16058f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+51b1964e35e5e26f8cd938940f0da6f7b5cc54fc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1107bee365ab0496901482f91d0daaedec6cac74f959859971541565cf31f9c7
[INFO] running `Command { std: "docker" "start" "-a" "1107bee365ab0496901482f91d0daaedec6cac74f959859971541565cf31f9c7", kill_on_drop: false }`
[INFO] [stderr]     Checking mocha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::lexer::tokens::Literal`
[INFO] [stdout]  --> src/interpreter/interpreter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lexer::tokens::Literal;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lexer::tokens::Literal`
[INFO] [stdout]  --> src/interpreter/interpreter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lexer::tokens::Literal;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bool_data` is never read
[INFO] [stdout]   --> src/lexer/tokens.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct Literal {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub bool_data: Option<bool>
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, 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 `string_data`, `number_data`, and `bool_data` are never read
[INFO] [stdout]   --> src/parser/expr.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub struct ExprLiteral {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 97 |     pub string_data: Option<Literal>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 98 |     pub number_data: Option<f32>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 99 |     pub bool_data: Option<bool>
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExprLiteral` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interpreter` is never constructed
[INFO] [stdout]  --> src/interpreter/interpreter.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Interpreter {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bool_data` is never read
[INFO] [stdout]   --> src/lexer/tokens.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct Literal {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub bool_data: Option<bool>
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, 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 `string_data`, `number_data`, and `bool_data` are never read
[INFO] [stdout]   --> src/parser/expr.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub struct ExprLiteral {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 97 |     pub string_data: Option<Literal>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 98 |     pub number_data: Option<f32>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 99 |     pub bool_data: Option<bool>
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExprLiteral` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interpreter` is never constructed
[INFO] [stdout]  --> src/interpreter/interpreter.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Interpreter {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "1107bee365ab0496901482f91d0daaedec6cac74f959859971541565cf31f9c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1107bee365ab0496901482f91d0daaedec6cac74f959859971541565cf31f9c7", kill_on_drop: false }`
[INFO] [stdout] 1107bee365ab0496901482f91d0daaedec6cac74f959859971541565cf31f9c7