[INFO] updating cached repository phonnz/shell-with-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/phonnz/shell-with-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/phonnz/shell-with-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/phonnz/shell-with-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/phonnz/shell-with-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/phonnz/shell-with-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/phonnz/shell-with-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/phonnz/shell-with-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fcf16b764a46609d60630fda7b0b625b036730c6
[INFO] sha for GitHub repo phonnz/shell-with-rust: fcf16b764a46609d60630fda7b0b625b036730c6
[INFO] validating manifest of phonnz/shell-with-rust 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 phonnz/shell-with-rust 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 phonnz/shell-with-rust
[INFO] finished frobbing phonnz/shell-with-rust
[INFO] frobbed toml for phonnz/shell-with-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/phonnz/shell-with-rust/Cargo.toml
[INFO] started frobbing phonnz/shell-with-rust
[INFO] finished frobbing phonnz/shell-with-rust
[INFO] frobbed toml for phonnz/shell-with-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/phonnz/shell-with-rust/Cargo.toml
[INFO] crate phonnz/shell-with-rust 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 phonnz/shell-with-rust 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/phonnz/shell-with-rust:/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] f6b3b2eadefc57c0ed5bdae41291b298527823b6f078fb9e322505c0eedbe5d0
[INFO] running `"docker" "start" "-a" "f6b3b2eadefc57c0ed5bdae41291b298527823b6f078fb9e322505c0eedbe5d0"`
[INFO] [stderr]    Compiling shell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `clean_path`
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn clean_path(path: &mut String) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `"docker" "inspect" "f6b3b2eadefc57c0ed5bdae41291b298527823b6f078fb9e322505c0eedbe5d0"`
[INFO] running `"docker" "rm" "-f" "f6b3b2eadefc57c0ed5bdae41291b298527823b6f078fb9e322505c0eedbe5d0"`
[INFO] [stdout] f6b3b2eadefc57c0ed5bdae41291b298527823b6f078fb9e322505c0eedbe5d0
[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/phonnz/shell-with-rust:/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] 9bf1cf603306139b24320aaf2f578044e4e4121f6da31f561a8e31d0354a4c85
[INFO] running `"docker" "start" "-a" "9bf1cf603306139b24320aaf2f578044e4e4121f6da31f561a8e31d0354a4c85"`
[INFO] [stderr]    Compiling shell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `clean_path`
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn clean_path(path: &mut String) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "9bf1cf603306139b24320aaf2f578044e4e4121f6da31f561a8e31d0354a4c85"`
[INFO] running `"docker" "rm" "-f" "9bf1cf603306139b24320aaf2f578044e4e4121f6da31f561a8e31d0354a4c85"`
[INFO] [stdout] 9bf1cf603306139b24320aaf2f578044e4e4121f6da31f561a8e31d0354a4c85
[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/phonnz/shell-with-rust:/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] 0d17f66dd3de589f61154a1623cd5436097bad59f11239b8a8a92c70c8d5691d
[INFO] running `"docker" "start" "-a" "0d17f66dd3de589f61154a1623cd5436097bad59f11239b8a8a92c70c8d5691d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/shell-53cb003331996c3f
[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" "0d17f66dd3de589f61154a1623cd5436097bad59f11239b8a8a92c70c8d5691d"`
[INFO] running `"docker" "rm" "-f" "0d17f66dd3de589f61154a1623cd5436097bad59f11239b8a8a92c70c8d5691d"`
[INFO] [stdout] 0d17f66dd3de589f61154a1623cd5436097bad59f11239b8a8a92c70c8d5691d