[INFO] crate lark-type-check 0.1.0 is already in cache
[INFO] checking lark-type-check-0.1.0 against try#e60d9e09c55855f5a848fde8ad83e13131a5b241 for pr-68350
[INFO] extracting crate lark-type-check 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate lark-type-check 0.1.0 on toolchain e60d9e09c55855f5a848fde8ad83e13131a5b241
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e60d9e09c55855f5a848fde8ad83e13131a5b241" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate lark-type-check 0.1.0
[INFO] finished tweaking crates.io crate lark-type-check 0.1.0
[INFO] tweaked toml for crates.io crate lark-type-check 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e60d9e09c55855f5a848fde8ad83e13131a5b241" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e60d9e09c55855f5a848fde8ad83e13131a5b241" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+e60d9e09c55855f5a848fde8ad83e13131a5b241" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bae0e374e1af28a634859fc70c00bff4d23386b3e2810b68b13864db9e1d4408
[INFO] running `"docker" "start" "-a" "bae0e374e1af28a634859fc70c00bff4d23386b3e2810b68b13864db9e1d4408"`
[INFO] [stderr]     Checking datafrog v2.0.1
[INFO] [stderr]     Checking render-tree v0.1.1
[INFO] [stderr]    Compiling lark-debug-derive v0.1.0
[INFO] [stderr]     Checking languageserver-types v0.53.1
[INFO] [stderr]     Checking lark-unify v0.1.0
[INFO] [stderr]     Checking lark-intern v0.1.0
[INFO] [stderr]     Checking salsa v0.9.2
[INFO] [stderr]     Checking language-reporting v0.3.1
[INFO] [stderr]     Checking lark-string v0.1.0
[INFO] [stderr]     Checking lark-span v0.1.0
[INFO] [stderr]     Checking lark-error v0.1.0
[INFO] [stderr]     Checking lark-entity v0.1.0
[INFO] [stderr]     Checking lark-ty v0.1.0
[INFO] [stderr]     Checking lark-hir v0.1.0
[INFO] [stderr]     Checking lark-parser v0.1.0
[INFO] [stderr]     Checking lark-pretty-print v0.1.0
[INFO] [stderr]     Checking lark-type-check v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/full_inference/perm.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  |   /// An intern'd permission.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 10 | / lark_collections::index_type! {
[INFO] [stderr] 11 | |     crate struct Perm { .. }
[INFO] [stderr] 12 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/full_inference/perm.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  |   /// An intern'd permission.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 10 | / lark_collections::index_type! {
[INFO] [stderr] 11 | |     crate struct Perm { .. }
[INFO] [stderr] 12 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Placeholder`
[INFO] [stderr]   --> src/full_inference/perm.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     Placeholder(Placeholder),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Placeholder`
[INFO] [stderr]   --> src/full_inference/perm.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     Placeholder(Placeholder),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.79s
[INFO] running `"docker" "inspect" "bae0e374e1af28a634859fc70c00bff4d23386b3e2810b68b13864db9e1d4408"`
[INFO] running `"docker" "rm" "-f" "bae0e374e1af28a634859fc70c00bff4d23386b3e2810b68b13864db9e1d4408"`
[INFO] [stdout] bae0e374e1af28a634859fc70c00bff4d23386b3e2810b68b13864db9e1d4408