[INFO] updating cached repository vendethiel/smallstack
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vendethiel/smallstack
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vendethiel/smallstack" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/vendethiel/smallstack"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/vendethiel/smallstack'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vendethiel/smallstack" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/vendethiel/smallstack"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/vendethiel/smallstack'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 053b8d48c8de87e036a17ee7283676eeba67ba66
[INFO] sha for GitHub repo vendethiel/smallstack: 053b8d48c8de87e036a17ee7283676eeba67ba66
[INFO] validating manifest of vendethiel/smallstack on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vendethiel/smallstack on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vendethiel/smallstack
[INFO] finished frobbing vendethiel/smallstack
[INFO] frobbed toml for vendethiel/smallstack written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/vendethiel/smallstack/Cargo.toml
[INFO] started frobbing vendethiel/smallstack
[INFO] finished frobbing vendethiel/smallstack
[INFO] frobbed toml for vendethiel/smallstack written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/vendethiel/smallstack/Cargo.toml
[INFO] crate vendethiel/smallstack already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking vendethiel/smallstack against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-6/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/vendethiel/smallstack:/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f0997fcb04720cb7ca9d912a233eb81d30a7c14b6c6fe33a891cbf725f566369
[INFO] running `"docker" "start" "-a" "f0997fcb04720cb7ca9d912a233eb81d30a7c14b6c6fe33a891cbf725f566369"`
[INFO] [stderr] warning: path `/opt/crater/workdir/src/smallstack.rs` was erroneously implicitly accepted for binary `smallstack`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]     Checking smallstack v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/smallstack.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |           /// XXX this should JUST be a call!
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 149 | /         &["math", op] => if let
[INFO] [stderr] 150 | |             (Some(Expr::Int(arg1)), Some(Expr::Int(arg2)))
[INFO] [stderr] 151 | |             =
[INFO] [stderr] 152 | |             (stack.pop(), stack.pop()) {
[INFO] [stderr] ...   |
[INFO] [stderr] 162 | |           panic!("VM error: not enough arguments to `math`");
[INFO] [stderr] 163 | |         },
[INFO] [stderr]     | |_________- rustdoc does not generate documentation for match arms
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/smallstack.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |           /// XXX this should JUST be a call!
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 149 | /         &["math", op] => if let
[INFO] [stderr] 150 | |             (Some(Expr::Int(arg1)), Some(Expr::Int(arg2)))
[INFO] [stderr] 151 | |             =
[INFO] [stderr] 152 | |             (stack.pop(), stack.pop()) {
[INFO] [stderr] ...   |
[INFO] [stderr] 162 | |           panic!("VM error: not enough arguments to `math`");
[INFO] [stderr] 163 | |         },
[INFO] [stderr]     | |_________- rustdoc does not generate documentation for match arms
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "f0997fcb04720cb7ca9d912a233eb81d30a7c14b6c6fe33a891cbf725f566369"`
[INFO] running `"docker" "rm" "-f" "f0997fcb04720cb7ca9d912a233eb81d30a7c14b6c6fe33a891cbf725f566369"`
[INFO] [stdout] f0997fcb04720cb7ca9d912a233eb81d30a7c14b6c6fe33a891cbf725f566369