[INFO] updating cached repository https://github.com/pranav-ap/corrosion-lang
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2b14b671acf31488402a835b9cbcb20135da4fc8
[INFO] checking pranav-ap/corrosion-lang against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpranav-ap%2Fcorrosion-lang" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pranav-ap/corrosion-lang on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/pranav-ap/corrosion-lang
[INFO] finished tweaking git repo https://github.com/pranav-ap/corrosion-lang
[INFO] tweaked toml for git repo https://github.com/pranav-ap/corrosion-lang written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/pranav-ap/corrosion-lang already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6b67d4f89dd3773de4a89abe638f665d4269b7e9cf0561c21f74d527a9127fa9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "6b67d4f89dd3773de4a89abe638f665d4269b7e9cf0561c21f74d527a9127fa9"`
[INFO] [stderr]     Checking carbon v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `Optional`
[INFO] [stderr]   --> src/parser/types.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Optional(TypeBox),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Optional`
[INFO] [stderr]  --> src/runtime/object.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Optional(ObjectBox),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `MapLiteral`
[INFO] [stderr]   --> src/runtime/object.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     MapLiteral(HashMap<String, Object>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RecordLiteral`
[INFO] [stderr]   --> src/runtime/object.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     RecordLiteral(HashMap<String, Object>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Optional`
[INFO] [stderr]   --> src/parser/types.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Optional(TypeBox),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Optional`
[INFO] [stderr]  --> src/runtime/object.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Optional(ObjectBox),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `MapLiteral`
[INFO] [stderr]   --> src/runtime/object.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     MapLiteral(HashMap<String, Object>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RecordLiteral`
[INFO] [stderr]   --> src/runtime/object.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     RecordLiteral(HashMap<String, Object>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `"docker" "inspect" "6b67d4f89dd3773de4a89abe638f665d4269b7e9cf0561c21f74d527a9127fa9"`
[INFO] running `"docker" "rm" "-f" "6b67d4f89dd3773de4a89abe638f665d4269b7e9cf0561c21f74d527a9127fa9"`
[INFO] [stdout] 6b67d4f89dd3773de4a89abe638f665d4269b7e9cf0561c21f74d527a9127fa9