[INFO] cloning repository https://github.com/ThePerkinrex/TestLang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ThePerkinrex/TestLang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThePerkinrex%2FTestLang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThePerkinrex%2FTestLang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fea17e8ea0edd10c60a1b46eca12e7b28f2ae9a5
[INFO] checking ThePerkinrex/TestLang against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThePerkinrex%2FTestLang" "/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/ThePerkinrex/TestLang on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ThePerkinrex/TestLang
[INFO] finished tweaking git repo https://github.com/ThePerkinrex/TestLang
[INFO] tweaked toml for git repo https://github.com/ThePerkinrex/TestLang written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ThePerkinrex/TestLang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] caf8597e291e824a04ac08eeb5457c00451a15cc77e6d476c23dea0f41fd8102
[INFO] running `Command { std: "docker" "start" "-a" "caf8597e291e824a04ac08eeb5457c00451a15cc77e6d476c23dea0f41fd8102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caf8597e291e824a04ac08eeb5457c00451a15cc77e6d476c23dea0f41fd8102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caf8597e291e824a04ac08eeb5457c00451a15cc77e6d476c23dea0f41fd8102", kill_on_drop: false }`
[INFO] [stdout] caf8597e291e824a04ac08eeb5457c00451a15cc77e6d476c23dea0f41fd8102
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a749f80abdcaf96c350634ba4447bc22364efac6ee1213bcdbf9a90b3e3a0ad6
[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" "a749f80abdcaf96c350634ba4447bc22364efac6ee1213bcdbf9a90b3e3a0ad6", kill_on_drop: false }`
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Define`
[INFO] [stdout]   --> src/ast/expr.rs:31:2
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Define(Ident, Box<Span<Expr>>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DefineMut`
[INFO] [stdout]   --> src/ast/expr.rs:32:2
[INFO] [stdout]    |
[INFO] [stdout] 32 |     DefineMut(Ident, Box<Span<Expr>>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `map`
[INFO] [stdout]    --> src/scope.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn map<U: Clone, F: Fn(T) -> U>(mut self, f: &F) -> Scope<U> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Define`
[INFO] [stdout]   --> src/ast/expr.rs:31:2
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Define(Ident, Box<Span<Expr>>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DefineMut`
[INFO] [stdout]   --> src/ast/expr.rs:32:2
[INFO] [stdout]    |
[INFO] [stdout] 32 |     DefineMut(Ident, Box<Span<Expr>>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `map`
[INFO] [stdout]    --> src/scope.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn map<U: Clone, F: Fn(T) -> U>(mut self, f: &F) -> Scope<U> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.33s
[INFO] running `Command { std: "docker" "inspect" "a749f80abdcaf96c350634ba4447bc22364efac6ee1213bcdbf9a90b3e3a0ad6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a749f80abdcaf96c350634ba4447bc22364efac6ee1213bcdbf9a90b3e3a0ad6", kill_on_drop: false }`
[INFO] [stdout] a749f80abdcaf96c350634ba4447bc22364efac6ee1213bcdbf9a90b3e3a0ad6