[INFO] updating cached repository hindenbug/rtstc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hindenbug/rtstc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hindenbug/rtstc" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/hindenbug/rtstc"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/hindenbug/rtstc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hindenbug/rtstc" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/hindenbug/rtstc"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/hindenbug/rtstc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 25f582d234f2b087ba11dce1444a7ca4290386bc
[INFO] sha for GitHub repo hindenbug/rtstc: 25f582d234f2b087ba11dce1444a7ca4290386bc
[INFO] validating manifest of hindenbug/rtstc on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hindenbug/rtstc on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hindenbug/rtstc
[INFO] finished frobbing hindenbug/rtstc
[INFO] frobbed toml for hindenbug/rtstc written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/hindenbug/rtstc/Cargo.toml
[INFO] started frobbing hindenbug/rtstc
[INFO] finished frobbing hindenbug/rtstc
[INFO] frobbed toml for hindenbug/rtstc written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/hindenbug/rtstc/Cargo.toml
[INFO] crate hindenbug/rtstc has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking hindenbug/rtstc against try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-6/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/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" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] badb8a08cf3267da19360d1d513b1e7db18a9277fd36ef3e8c88d71375b9d4db
[INFO] running `"docker" "start" "-a" "badb8a08cf3267da19360d1d513b1e7db18a9277fd36ef3e8c88d71375b9d4db"`
[INFO] [stderr]     Checking rtstc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `ast`
[INFO] [stderr]  --> src/traverser.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn traverse(ast: ::parser::Node) {
[INFO] [stderr]   |                 ^^^ help: consider prefixing with an underscore: `_ast`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Visitor`
[INFO] [stderr]  --> src/traverser.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Visitor {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `traverse`
[INFO] [stderr]  --> src/traverser.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn traverse(ast: ::parser::Node) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ast`
[INFO] [stderr]  --> src/traverser.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn traverse(ast: ::parser::Node) {
[INFO] [stderr]   |                 ^^^ help: consider prefixing with an underscore: `_ast`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Visitor`
[INFO] [stderr]  --> src/traverser.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Visitor {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "badb8a08cf3267da19360d1d513b1e7db18a9277fd36ef3e8c88d71375b9d4db"`
[INFO] running `"docker" "rm" "-f" "badb8a08cf3267da19360d1d513b1e7db18a9277fd36ef3e8c88d71375b9d4db"`
[INFO] [stdout] badb8a08cf3267da19360d1d513b1e7db18a9277fd36ef3e8c88d71375b9d4db