[INFO] updating cached repository https://github.com/golddranks/kadouchi
[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] 3b230bae30f046fc427ef4cac3f919cb7c0bc1a9
[INFO] checking golddranks/kadouchi against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgolddranks%2Fkadouchi" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/golddranks/kadouchi on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/golddranks/kadouchi
[INFO] finished tweaking git repo https://github.com/golddranks/kadouchi
[INFO] tweaked toml for git repo https://github.com/golddranks/kadouchi written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/golddranks/kadouchi already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-3/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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a9dbf9b20b1898eb069d5c9d9d8ec7baba72968f8921de6d8feb6a334c45e41e
[INFO] running `"docker" "start" "-a" "a9dbf9b20b1898eb069d5c9d9d8ec7baba72968f8921de6d8feb6a334c45e41e"`
[INFO] [stderr]     Checking scoped_stack v0.1.0 (https://github.com/golddranks/scoped_stack#0cbf7808)
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking kadouchi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `obj_idx`
[INFO] [stderr]    --> src/typecheck.rs:209:17
[INFO] [stderr]     |
[INFO] [stderr] 209 |             let obj_idx = parent.add_arg(new_obj);
[INFO] [stderr]     |                 ^^^^^^^ help: consider prefixing with an underscore: `_obj_idx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `natives`
[INFO] [stderr]    --> src/typecheck.rs:106:35
[INFO] [stderr]     |
[INFO] [stderr] 106 |     fn build_extern_caller_object(natives: &'str Library) -> Object<'str> {
[INFO] [stderr]     |                                   ^^^^^^^ help: consider prefixing with an underscore: `_natives`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `obj_idx`
[INFO] [stderr]    --> src/typecheck.rs:209:17
[INFO] [stderr]     |
[INFO] [stderr] 209 |             let obj_idx = parent.add_arg(new_obj);
[INFO] [stderr]     |                 ^^^^^^^ help: consider prefixing with an underscore: `_obj_idx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `natives`
[INFO] [stderr]    --> src/typecheck.rs:106:35
[INFO] [stderr]     |
[INFO] [stderr] 106 |     fn build_extern_caller_object(natives: &'str Library) -> Object<'str> {
[INFO] [stderr]     |                                   ^^^^^^^ help: consider prefixing with an underscore: `_natives`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.59s
[INFO] running `"docker" "inspect" "a9dbf9b20b1898eb069d5c9d9d8ec7baba72968f8921de6d8feb6a334c45e41e"`
[INFO] running `"docker" "rm" "-f" "a9dbf9b20b1898eb069d5c9d9d8ec7baba72968f8921de6d8feb6a334c45e41e"`
[INFO] [stdout] a9dbf9b20b1898eb069d5c9d9d8ec7baba72968f8921de6d8feb6a334c45e41e