[INFO] updating cached repository rodrigomg/shell-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rodrigomg/shell-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rodrigomg/shell-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/rodrigomg/shell-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/rodrigomg/shell-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rodrigomg/shell-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rodrigomg/shell-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rodrigomg/shell-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 993810fd81c3db03e02dfc48da8fea0580e551df
[INFO] sha for GitHub repo rodrigomg/shell-rust: 993810fd81c3db03e02dfc48da8fea0580e551df
[INFO] validating manifest of rodrigomg/shell-rust 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 rodrigomg/shell-rust 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 rodrigomg/shell-rust
[INFO] finished frobbing rodrigomg/shell-rust
[INFO] frobbed toml for rodrigomg/shell-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/rodrigomg/shell-rust/Cargo.toml
[INFO] started frobbing rodrigomg/shell-rust
[INFO] finished frobbing rodrigomg/shell-rust
[INFO] frobbed toml for rodrigomg/shell-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rodrigomg/shell-rust/Cargo.toml
[INFO] crate rodrigomg/shell-rust 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 rodrigomg/shell-rust against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rodrigomg/shell-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 7b54638a7e6380c5d95aaa43da0847d9be79b39505c96f316ad4869deda56c1b
[INFO] running `"docker" "start" "-a" "7b54638a7e6380c5d95aaa43da0847d9be79b39505c96f316ad4869deda56c1b"`
[INFO] [stderr]    Compiling shell_sample v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `exec_the_command`
[INFO] [stderr]   --> src/main.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn exec_the_command(command_executor: &mut Command) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "7b54638a7e6380c5d95aaa43da0847d9be79b39505c96f316ad4869deda56c1b"`
[INFO] running `"docker" "rm" "-f" "7b54638a7e6380c5d95aaa43da0847d9be79b39505c96f316ad4869deda56c1b"`
[INFO] [stdout] 7b54638a7e6380c5d95aaa43da0847d9be79b39505c96f316ad4869deda56c1b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rodrigomg/shell-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 131c1912c657c9cad7e3a7e6433b32b011209029860419393aa5e1cfde769b92
[INFO] running `"docker" "start" "-a" "131c1912c657c9cad7e3a7e6433b32b011209029860419393aa5e1cfde769b92"`
[INFO] [stderr]    Compiling shell_sample v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `exec_the_command`
[INFO] [stderr]   --> src/main.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn exec_the_command(command_executor: &mut Command) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "131c1912c657c9cad7e3a7e6433b32b011209029860419393aa5e1cfde769b92"`
[INFO] running `"docker" "rm" "-f" "131c1912c657c9cad7e3a7e6433b32b011209029860419393aa5e1cfde769b92"`
[INFO] [stdout] 131c1912c657c9cad7e3a7e6433b32b011209029860419393aa5e1cfde769b92
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rodrigomg/shell-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] dfcdad749e15d4de82e0798e4e6e5be822f570dc813b4a0b84b962709764b0c8
[INFO] running `"docker" "start" "-a" "dfcdad749e15d4de82e0798e4e6e5be822f570dc813b4a0b84b962709764b0c8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/shell_sample-5d8c336cd49bfa04
[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" "dfcdad749e15d4de82e0798e4e6e5be822f570dc813b4a0b84b962709764b0c8"`
[INFO] running `"docker" "rm" "-f" "dfcdad749e15d4de82e0798e4e6e5be822f570dc813b4a0b84b962709764b0c8"`
[INFO] [stdout] dfcdad749e15d4de82e0798e4e6e5be822f570dc813b4a0b84b962709764b0c8