[INFO] updating cached repository vlttnv/rusty-shell
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vlttnv/rusty-shell
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vlttnv/rusty-shell" "work/ex/beta-1.37-6/sources/1.36.0/gh/vlttnv/rusty-shell"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/vlttnv/rusty-shell'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vlttnv/rusty-shell" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/vlttnv/rusty-shell"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/vlttnv/rusty-shell'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 32312888362183d17b23a778368864b9c7c54dae
[INFO] sha for GitHub repo vlttnv/rusty-shell: 32312888362183d17b23a778368864b9c7c54dae
[INFO] validating manifest of vlttnv/rusty-shell on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vlttnv/rusty-shell on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vlttnv/rusty-shell
[INFO] finished frobbing vlttnv/rusty-shell
[INFO] frobbed toml for vlttnv/rusty-shell written to work/ex/beta-1.37-6/sources/1.36.0/gh/vlttnv/rusty-shell/Cargo.toml
[INFO] started frobbing vlttnv/rusty-shell
[INFO] finished frobbing vlttnv/rusty-shell
[INFO] frobbed toml for vlttnv/rusty-shell written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/vlttnv/rusty-shell/Cargo.toml
[INFO] crate vlttnv/rusty-shell already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing vlttnv/rusty-shell against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/vlttnv/rusty-shell:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 4c6caa964b8a12a6cadb5a44ce9de4e6172463c55836b08a7667726da851a035
[INFO] running `"docker" "start" "-a" "4c6caa964b8a12a6cadb5a44ce9de4e6172463c55836b08a7667726da851a035"`
[INFO] [stderr]    Compiling rusty_shell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `exit_code` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut exit_code;
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_exit_code` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `exit_code` is never read
[INFO] [stderr]   --> src/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         exit_code = rsh_run(&args)
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `"docker" "inspect" "4c6caa964b8a12a6cadb5a44ce9de4e6172463c55836b08a7667726da851a035"`
[INFO] running `"docker" "rm" "-f" "4c6caa964b8a12a6cadb5a44ce9de4e6172463c55836b08a7667726da851a035"`
[INFO] [stdout] 4c6caa964b8a12a6cadb5a44ce9de4e6172463c55836b08a7667726da851a035
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/vlttnv/rusty-shell:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] de132d724d44e3461f1f733acbbbb23fb659106fa6e2953d0bf296a97fecd281
[INFO] running `"docker" "start" "-a" "de132d724d44e3461f1f733acbbbb23fb659106fa6e2953d0bf296a97fecd281"`
[INFO] [stderr]    Compiling rusty_shell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `exit_code` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut exit_code;
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_exit_code` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `exit_code` is never read
[INFO] [stderr]   --> src/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         exit_code = rsh_run(&args)
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "de132d724d44e3461f1f733acbbbb23fb659106fa6e2953d0bf296a97fecd281"`
[INFO] running `"docker" "rm" "-f" "de132d724d44e3461f1f733acbbbb23fb659106fa6e2953d0bf296a97fecd281"`
[INFO] [stdout] de132d724d44e3461f1f733acbbbb23fb659106fa6e2953d0bf296a97fecd281
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/vlttnv/rusty-shell:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 9d6134588d69f580793bc405274436dea0a4cf39a884d3bc7ca3157adb4df3d6
[INFO] running `"docker" "start" "-a" "9d6134588d69f580793bc405274436dea0a4cf39a884d3bc7ca3157adb4df3d6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_shell-150bc5b8d14f6f06
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_rsh_cd ... ok
[INFO] [stdout] test tests::test_rsh_parse_line ... ok
[INFO] [stdout] /opt/crater
[INFO] [stdout] test tests::test_rsh_run ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9d6134588d69f580793bc405274436dea0a4cf39a884d3bc7ca3157adb4df3d6"`
[INFO] running `"docker" "rm" "-f" "9d6134588d69f580793bc405274436dea0a4cf39a884d3bc7ca3157adb4df3d6"`
[INFO] [stdout] 9d6134588d69f580793bc405274436dea0a4cf39a884d3bc7ca3157adb4df3d6