Dec 17 23:16:25.360 INFO checking hindenbug/rtstc against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 23:16:25.361 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/hindenbug/rtstc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 23:16:25.564 INFO [stdout] 0d3da0afcb380948b8f91e1b897d26306e00f4bb79fa6331f2ba3f3a1145ec18
Dec 17 23:16:25.567 INFO running `"docker" "start" "-a" "0d3da0afcb380948b8f91e1b897d26306e00f4bb79fa6331f2ba3f3a1145ec18"`
Dec 17 23:16:26.134 INFO [stderr]     Checking rtstc v0.1.0 (/opt/crater/workdir)
Dec 17 23:16:26.352 INFO [stderr] warning: unused variable: `ast`
Dec 17 23:16:26.352 INFO [stderr]  --> src/traverser.rs:8:17
Dec 17 23:16:26.352 INFO [stderr]   |
Dec 17 23:16:26.353 INFO [stderr] 8 | pub fn traverse(ast: ::parser::Node) {
Dec 17 23:16:26.353 INFO [stderr]   |                 ^^^ help: consider using `_ast` instead
Dec 17 23:16:26.354 INFO [stderr]   |
Dec 17 23:16:26.354 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 17 23:16:26.354 INFO [stderr] 
Dec 17 23:16:26.372 INFO [stderr] warning: struct is never constructed: `Visitor`
Dec 17 23:16:26.373 INFO [stderr]  --> src/traverser.rs:1:1
Dec 17 23:16:26.373 INFO [stderr]   |
Dec 17 23:16:26.373 INFO [stderr] 1 | struct Visitor {
Dec 17 23:16:26.374 INFO [stderr]   | ^^^^^^^^^^^^^^
Dec 17 23:16:26.374 INFO [stderr]   |
Dec 17 23:16:26.374 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 23:16:26.375 INFO [stderr] 
Dec 17 23:16:26.375 INFO [stderr] warning: function is never used: `traverse`
Dec 17 23:16:26.375 INFO [stderr]  --> src/traverser.rs:8:1
Dec 17 23:16:26.376 INFO [stderr]   |
Dec 17 23:16:26.376 INFO [stderr] 8 | pub fn traverse(ast: ::parser::Node) {
Dec 17 23:16:26.376 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:16:26.377 INFO [stderr] 
Dec 17 23:16:26.404 INFO [stderr] warning: unused variable: `ast`
Dec 17 23:16:26.405 INFO [stderr]  --> src/traverser.rs:8:17
Dec 17 23:16:26.405 INFO [stderr]   |
Dec 17 23:16:26.405 INFO [stderr] 8 | pub fn traverse(ast: ::parser::Node) {
Dec 17 23:16:26.406 INFO [stderr]   |                 ^^^ help: consider using `_ast` instead
Dec 17 23:16:26.406 INFO [stderr]   |
Dec 17 23:16:26.407 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 17 23:16:26.407 INFO [stderr] 
Dec 17 23:16:26.429 INFO [stderr] warning: struct is never constructed: `Visitor`
Dec 17 23:16:26.429 INFO [stderr]  --> src/traverser.rs:1:1
Dec 17 23:16:26.429 INFO [stderr]   |
Dec 17 23:16:26.429 INFO [stderr] 1 | struct Visitor {
Dec 17 23:16:26.430 INFO [stderr]   | ^^^^^^^^^^^^^^
Dec 17 23:16:26.430 INFO [stderr]   |
Dec 17 23:16:26.430 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 23:16:26.430 INFO [stderr] 
Dec 17 23:16:26.449 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
Dec 17 23:16:26.743 INFO running `"docker" "inspect" "0d3da0afcb380948b8f91e1b897d26306e00f4bb79fa6331f2ba3f3a1145ec18"`
Dec 17 23:16:26.874 INFO running `"docker" "rm" "-f" "0d3da0afcb380948b8f91e1b897d26306e00f4bb79fa6331f2ba3f3a1145ec18"`
Dec 17 23:16:27.000 INFO [stdout] 0d3da0afcb380948b8f91e1b897d26306e00f4bb79fa6331f2ba3f3a1145ec18