[INFO] updating cached repository cakey/xml_schema_finder
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cakey/xml_schema_finder
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cakey/xml_schema_finder" "work/ex/beta-1.38-1/sources/1.37.0/gh/cakey/xml_schema_finder"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cakey/xml_schema_finder'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cakey/xml_schema_finder" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cakey/xml_schema_finder"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cakey/xml_schema_finder'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9c7855b7ee19476a51ae725ecce17d029ea8e2b8
[INFO] sha for GitHub repo cakey/xml_schema_finder: 9c7855b7ee19476a51ae725ecce17d029ea8e2b8
[INFO] validating manifest of cakey/xml_schema_finder on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cakey/xml_schema_finder on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cakey/xml_schema_finder
[INFO] finished frobbing cakey/xml_schema_finder
[INFO] frobbed toml for cakey/xml_schema_finder written to work/ex/beta-1.38-1/sources/1.37.0/gh/cakey/xml_schema_finder/Cargo.toml
[INFO] started frobbing cakey/xml_schema_finder
[INFO] finished frobbing cakey/xml_schema_finder
[INFO] frobbed toml for cakey/xml_schema_finder written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cakey/xml_schema_finder/Cargo.toml
[INFO] crate cakey/xml_schema_finder already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing cakey/xml_schema_finder against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cakey/xml_schema_finder:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 7ce4a41998e46845412b9b1a65d94ec46e82306a60c6562ace7b83b8d53d035d
[INFO] running `"docker" "start" "-a" "7ce4a41998e46845412b9b1a65d94ec46e82306a60c6562ace7b83b8d53d035d"`
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling encoding_rs v0.7.1
[INFO] [stderr]    Compiling clicolors-control v0.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.2.8
[INFO] [stderr]    Compiling regex v0.2.3
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling parking_lot v0.5.3
[INFO] [stderr]    Compiling quick-xml v0.10.1
[INFO] [stderr]    Compiling console v0.5.0
[INFO] [stderr]    Compiling indicatif v0.8.0
[INFO] [stderr]    Compiling xml_schema_finder v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:80:21
[INFO] [stderr]    |
[INFO] [stderr] 80 |                 let mut attribute = schema
[INFO] [stderr]    |                     ----^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.04s
[INFO] running `"docker" "inspect" "7ce4a41998e46845412b9b1a65d94ec46e82306a60c6562ace7b83b8d53d035d"`
[INFO] running `"docker" "rm" "-f" "7ce4a41998e46845412b9b1a65d94ec46e82306a60c6562ace7b83b8d53d035d"`
[INFO] [stdout] 7ce4a41998e46845412b9b1a65d94ec46e82306a60c6562ace7b83b8d53d035d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cakey/xml_schema_finder:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f761b4d24a43e29d4176f18c28711d74d624516c8e64b8e37d76419e4c6a0b20
[INFO] running `"docker" "start" "-a" "f761b4d24a43e29d4176f18c28711d74d624516c8e64b8e37d76419e4c6a0b20"`
[INFO] [stderr]    Compiling xml_schema_finder v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:80:21
[INFO] [stderr]    |
[INFO] [stderr] 80 |                 let mut attribute = schema
[INFO] [stderr]    |                     ----^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `"docker" "inspect" "f761b4d24a43e29d4176f18c28711d74d624516c8e64b8e37d76419e4c6a0b20"`
[INFO] running `"docker" "rm" "-f" "f761b4d24a43e29d4176f18c28711d74d624516c8e64b8e37d76419e4c6a0b20"`
[INFO] [stdout] f761b4d24a43e29d4176f18c28711d74d624516c8e64b8e37d76419e4c6a0b20
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cakey/xml_schema_finder:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 0b22aebe0b0df4dda150930de497ed987f0715e309c229de53c9d06e73b4beeb
[INFO] running `"docker" "start" "-a" "0b22aebe0b0df4dda150930de497ed987f0715e309c229de53c9d06e73b4beeb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/xml_schema_finder-122fa3110765433c
[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" "0b22aebe0b0df4dda150930de497ed987f0715e309c229de53c9d06e73b4beeb"`
[INFO] running `"docker" "rm" "-f" "0b22aebe0b0df4dda150930de497ed987f0715e309c229de53c9d06e73b4beeb"`
[INFO] [stdout] 0b22aebe0b0df4dda150930de497ed987f0715e309c229de53c9d06e73b4beeb