[INFO] updating cached repository Jengamon/Kobold
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Jengamon/Kobold
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Jengamon/Kobold" "work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/Jengamon/Kobold"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/Jengamon/Kobold'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Jengamon/Kobold" "work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/Jengamon/Kobold"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/Jengamon/Kobold'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dd47af29c5303ab4a099441929f6a81541cff1d8
[INFO] sha for GitHub repo Jengamon/Kobold: dd47af29c5303ab4a099441929f6a81541cff1d8
[INFO] validating manifest of Jengamon/Kobold on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Jengamon/Kobold on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Jengamon/Kobold
[INFO] finished frobbing Jengamon/Kobold
[INFO] frobbed toml for Jengamon/Kobold written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/Jengamon/Kobold/Cargo.toml
[INFO] started frobbing Jengamon/Kobold
[INFO] finished frobbing Jengamon/Kobold
[INFO] frobbed toml for Jengamon/Kobold written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/Jengamon/Kobold/Cargo.toml
[INFO] crate Jengamon/Kobold already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/Jengamon/Kobold/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Jengamon/Kobold against try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-4/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/Jengamon/Kobold:/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" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d301207a2f2ce247f9bf4b6d45d0df9321f15bfd95515afaef949bc78d356286
[INFO] running `"docker" "start" "-a" "d301207a2f2ce247f9bf4b6d45d0df9321f15bfd95515afaef949bc78d356286"`
[INFO] [stderr]     Checking kobold v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/compiler/module.rs:82:31
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn find_module(&self, s: &str) -> Option<Module> {
[INFO] [stderr]    |                               ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/compiler/module.rs:82:31
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn find_module(&self, s: &str) -> Option<Module> {
[INFO] [stderr]    |                               ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `find_module`
[INFO] [stderr]   --> src/compiler/module.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn find_module(&self, s: &str) -> Option<Module> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `find_module`
[INFO] [stderr]   --> src/compiler/module.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn find_module(&self, s: &str) -> Option<Module> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "d301207a2f2ce247f9bf4b6d45d0df9321f15bfd95515afaef949bc78d356286"`
[INFO] running `"docker" "rm" "-f" "d301207a2f2ce247f9bf4b6d45d0df9321f15bfd95515afaef949bc78d356286"`
[INFO] [stdout] d301207a2f2ce247f9bf4b6d45d0df9321f15bfd95515afaef949bc78d356286