[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-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/tiffany352/tifflang"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/tiffany352/tifflang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tiffany352/tifflang" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tiffany352/tifflang"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tiffany352/tifflang on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-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-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tiffany352/tifflang/Cargo.toml
[INFO] crate tiffany352/tifflang has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tiffany352/tifflang against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tiffany352/tifflang:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 57fabc6eb4da74f81ac01913e89cbf962e099a78ca8f48c125e543992dca6f73
[INFO] running `"docker" "start" "-a" "57fabc6eb4da74f81ac01913e89cbf962e099a78ca8f48c125e543992dca6f73"`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling web-assembler v0.1.0
[INFO] [stderr]    Compiling memchr v2.0.2
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 20.35s
[INFO] running `"docker" "inspect" "57fabc6eb4da74f81ac01913e89cbf962e099a78ca8f48c125e543992dca6f73"`
[INFO] running `"docker" "rm" "-f" "57fabc6eb4da74f81ac01913e89cbf962e099a78ca8f48c125e543992dca6f73"`
[INFO] [stdout] 57fabc6eb4da74f81ac01913e89cbf962e099a78ca8f48c125e543992dca6f73
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tiffany352/tifflang:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7c22ddd1cd1b6fd990edf65fbb4163fe2e2edb25668f77c0ae1ac3c3f1148382
[INFO] running `"docker" "start" "-a" "7c22ddd1cd1b6fd990edf65fbb4163fe2e2edb25668f77c0ae1ac3c3f1148382"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `"docker" "inspect" "7c22ddd1cd1b6fd990edf65fbb4163fe2e2edb25668f77c0ae1ac3c3f1148382"`
[INFO] running `"docker" "rm" "-f" "7c22ddd1cd1b6fd990edf65fbb4163fe2e2edb25668f77c0ae1ac3c3f1148382"`
[INFO] [stdout] 7c22ddd1cd1b6fd990edf65fbb4163fe2e2edb25668f77c0ae1ac3c3f1148382
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tiffany352/tifflang:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 4400b6559226d065a7291a98daa601a5a287d3ae6c1b72ade4547c482597c14c
[INFO] running `"docker" "start" "-a" "4400b6559226d065a7291a98daa601a5a287d3ae6c1b72ade4547c482597c14c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tifflang-d8493609eb836b3c
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4400b6559226d065a7291a98daa601a5a287d3ae6c1b72ade4547c482597c14c"`
[INFO] running `"docker" "rm" "-f" "4400b6559226d065a7291a98daa601a5a287d3ae6c1b72ade4547c482597c14c"`
[INFO] [stdout] 4400b6559226d065a7291a98daa601a5a287d3ae6c1b72ade4547c482597c14c