[INFO] updating cached repository https://github.com/tiffany352/tifflang
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 61df2ad44a8e3c930f1913562be669d5f30cfe90
[INFO] checking tiffany352/tifflang against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiffany352%2Ftifflang" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tiffany352/tifflang on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tiffany352/tifflang
[INFO] finished tweaking git repo https://github.com/tiffany352/tifflang
[INFO] tweaked toml for git repo https://github.com/tiffany352/tifflang written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/tiffany352/tifflang already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] da1b60885ac25e2da81686bf258e541318f0710801952de262e6d7256092b607
[INFO] running `"docker" "start" "-a" "da1b60885ac25e2da81686bf258e541318f0710801952de262e6d7256092b607"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking web-assembler v0.1.0
[INFO] [stderr]     Checking tifflang v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parser.rs:7:39
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub type TokenIterator = Peekable<Box<Iterator<Item=Span<Token>>>>;
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Span<Token>>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:51:19
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let iter: Box<Iterator<Item=Span<Token>>> = Box::new(tokens.into_iter());
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Span<Token>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parser.rs:7:39
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub type TokenIterator = Peekable<Box<Iterator<Item=Span<Token>>>>;
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Span<Token>>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:51:19
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let iter: Box<Iterator<Item=Span<Token>>> = Box::new(tokens.into_iter());
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Span<Token>>`
[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] 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 2.70s
[INFO] running `"docker" "inspect" "da1b60885ac25e2da81686bf258e541318f0710801952de262e6d7256092b607"`
[INFO] running `"docker" "rm" "-f" "da1b60885ac25e2da81686bf258e541318f0710801952de262e6d7256092b607"`
[INFO] [stdout] da1b60885ac25e2da81686bf258e541318f0710801952de262e6d7256092b607