[INFO] updating cached repository casey/janus
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/casey/janus
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/casey/janus" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/casey/janus"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/casey/janus'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/casey/janus" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/casey/janus"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/casey/janus'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c13ab0374fefc0d9b889cddbc8e8ba41c9630c1c
[INFO] sha for GitHub repo casey/janus: c13ab0374fefc0d9b889cddbc8e8ba41c9630c1c
[INFO] validating manifest of casey/janus on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of casey/janus on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing casey/janus
[INFO] removed path dependency just_dev from casey/janus
[INFO] finished frobbing casey/janus
[INFO] frobbed toml for casey/janus written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/casey/janus/Cargo.toml
[INFO] started frobbing casey/janus
[INFO] removed path dependency just_dev from casey/janus
[INFO] finished frobbing casey/janus
[INFO] frobbed toml for casey/janus written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/casey/janus/Cargo.toml
[INFO] crate casey/janus already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking casey/janus against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-0/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/casey/janus:/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 44a418f979d1e8b42d193307bae42d34405c9ac2d455bebbd513e99ff92ce9f1
[INFO] running `"docker" "start" "-a" "44a418f979d1e8b42d193307bae42d34405c9ac2d455bebbd513e99ff92ce9f1"`
[INFO] [stderr] warning: dependency (just_dev) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the crate `janus v0.0.0 (/opt/crater/workdir)` depends on crate `just v0.4.2` multiple times with different names
[INFO] running `"docker" "inspect" "44a418f979d1e8b42d193307bae42d34405c9ac2d455bebbd513e99ff92ce9f1"`
[INFO] running `"docker" "rm" "-f" "44a418f979d1e8b42d193307bae42d34405c9ac2d455bebbd513e99ff92ce9f1"`
[INFO] [stdout] 44a418f979d1e8b42d193307bae42d34405c9ac2d455bebbd513e99ff92ce9f1