[INFO] updating cached repository zhunor/fkin-sweet-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zhunor/fkin-sweet-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zhunor/fkin-sweet-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/zhunor/fkin-sweet-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/zhunor/fkin-sweet-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zhunor/fkin-sweet-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zhunor/fkin-sweet-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zhunor/fkin-sweet-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 78194fc1acf562a1b508135f7c1356ccef265c5f
[INFO] sha for GitHub repo zhunor/fkin-sweet-rust: 78194fc1acf562a1b508135f7c1356ccef265c5f
[INFO] validating manifest of zhunor/fkin-sweet-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 zhunor/fkin-sweet-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 zhunor/fkin-sweet-rust
[INFO] finished frobbing zhunor/fkin-sweet-rust
[INFO] frobbed toml for zhunor/fkin-sweet-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/zhunor/fkin-sweet-rust/Cargo.toml
[INFO] started frobbing zhunor/fkin-sweet-rust
[INFO] finished frobbing zhunor/fkin-sweet-rust
[INFO] frobbed toml for zhunor/fkin-sweet-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zhunor/fkin-sweet-rust/Cargo.toml
[INFO] crate zhunor/fkin-sweet-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 zhunor/fkin-sweet-rust against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zhunor/fkin-sweet-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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 5adee966a562e55d460a120501703fc419486ed3e1e7eb5dc99185db3c719a00
[INFO] running `"docker" "start" "-a" "5adee966a562e55d460a120501703fc419486ed3e1e7eb5dc99185db3c719a00"`
[INFO] [stderr]    Compiling cc v1.0.32
[INFO] [stderr]    Compiling smallvec v0.4.5
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling ferris-says v0.1.1
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `my_vec2`
[INFO] [stderr]  --> src/ref_pointer.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 |   let my_vec2 = &my_vec;
[INFO] [stderr]   |       ^^^^^^^ help: consider prefixing with an underscore: `_my_vec2`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/conditionals.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn run(){
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/loops.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn run(){
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Right`
[INFO] [stderr]  --> src/enums.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Right
[INFO] [stderr]   |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.22s
[INFO] running `"docker" "inspect" "5adee966a562e55d460a120501703fc419486ed3e1e7eb5dc99185db3c719a00"`
[INFO] running `"docker" "rm" "-f" "5adee966a562e55d460a120501703fc419486ed3e1e7eb5dc99185db3c719a00"`
[INFO] [stdout] 5adee966a562e55d460a120501703fc419486ed3e1e7eb5dc99185db3c719a00
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zhunor/fkin-sweet-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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8643d2573a08edfc3050183e600e7223a60cc8274326cd7fa15af9e6f58830a6
[INFO] running `"docker" "start" "-a" "8643d2573a08edfc3050183e600e7223a60cc8274326cd7fa15af9e6f58830a6"`
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `my_vec2`
[INFO] [stderr]  --> src/ref_pointer.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 |   let my_vec2 = &my_vec;
[INFO] [stderr]   |       ^^^^^^^ help: consider prefixing with an underscore: `_my_vec2`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/conditionals.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn run(){
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/loops.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn run(){
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Right`
[INFO] [stderr]  --> src/enums.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Right
[INFO] [stderr]   |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "8643d2573a08edfc3050183e600e7223a60cc8274326cd7fa15af9e6f58830a6"`
[INFO] running `"docker" "rm" "-f" "8643d2573a08edfc3050183e600e7223a60cc8274326cd7fa15af9e6f58830a6"`
[INFO] [stdout] 8643d2573a08edfc3050183e600e7223a60cc8274326cd7fa15af9e6f58830a6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zhunor/fkin-sweet-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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] f93e831099d9e3b3e29e1492300218c337c6750839bc2890eaa5e3c5a2e9c92a
[INFO] running `"docker" "start" "-a" "f93e831099d9e3b3e29e1492300218c337c6750839bc2890eaa5e3c5a2e9c92a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_rust-b98b2e0acdf28020
[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" "f93e831099d9e3b3e29e1492300218c337c6750839bc2890eaa5e3c5a2e9c92a"`
[INFO] running `"docker" "rm" "-f" "f93e831099d9e3b3e29e1492300218c337c6750839bc2890eaa5e3c5a2e9c92a"`
[INFO] [stdout] f93e831099d9e3b3e29e1492300218c337c6750839bc2890eaa5e3c5a2e9c92a