[INFO] updating cached repository tiffany352/tifflang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tiffany352/tifflang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tiffany352/tifflang" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/tiffany352/tifflang"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/tiffany352/tifflang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tiffany352/tifflang" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/tiffany352/tifflang"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/tiffany352/tifflang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 61df2ad44a8e3c930f1913562be669d5f30cfe90
[INFO] sha for GitHub repo tiffany352/tifflang: 61df2ad44a8e3c930f1913562be669d5f30cfe90
[INFO] validating manifest of tiffany352/tifflang on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tiffany352/tifflang on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tiffany352/tifflang
[INFO] finished frobbing tiffany352/tifflang
[INFO] frobbed toml for tiffany352/tifflang written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/tiffany352/tifflang/Cargo.toml
[INFO] started frobbing tiffany352/tifflang
[INFO] finished frobbing tiffany352/tifflang
[INFO] frobbed toml for tiffany352/tifflang written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/tiffany352/tifflang/Cargo.toml
[INFO] crate tiffany352/tifflang already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking tiffany352/tifflang against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-1/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/tiffany352/tifflang:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9c50350ed2c8183d6d73b575ad4a838919eaa08176e7dc503298d1badca8d872
[INFO] running `"docker" "start" "-a" "9c50350ed2c8183d6d73b575ad4a838919eaa08176e7dc503298d1badca8d872"`
[INFO] [stderr]     Checking web-assembler v0.1.0
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking regex v1.0.5
[INFO] [stderr]     Checking tifflang v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/typecheck.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     Function {
[INFO] [stderr] 47 | |         result: Box<Type>,
[INFO] [stderr] 48 | |         args: Vec<Type>,
[INFO] [stderr] 49 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/typecheck.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     Function {
[INFO] [stderr] 47 | |         result: Box<Type>,
[INFO] [stderr] 48 | |         args: Vec<Type>,
[INFO] [stderr] 49 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.98s
[INFO] running `"docker" "inspect" "9c50350ed2c8183d6d73b575ad4a838919eaa08176e7dc503298d1badca8d872"`
[INFO] running `"docker" "rm" "-f" "9c50350ed2c8183d6d73b575ad4a838919eaa08176e7dc503298d1badca8d872"`
[INFO] [stdout] 9c50350ed2c8183d6d73b575ad4a838919eaa08176e7dc503298d1badca8d872