[INFO] updating cached repository lshlyapnikov/grokking-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lshlyapnikov/grokking-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lshlyapnikov/grokking-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/lshlyapnikov/grokking-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/lshlyapnikov/grokking-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lshlyapnikov/grokking-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lshlyapnikov/grokking-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lshlyapnikov/grokking-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 32a6326f7d1443ec01c0a022a8bf14d260729d80
[INFO] sha for GitHub repo lshlyapnikov/grokking-rust: 32a6326f7d1443ec01c0a022a8bf14d260729d80
[INFO] validating manifest of lshlyapnikov/grokking-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 lshlyapnikov/grokking-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 lshlyapnikov/grokking-rust
[INFO] finished frobbing lshlyapnikov/grokking-rust
[INFO] frobbed toml for lshlyapnikov/grokking-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/lshlyapnikov/grokking-rust/Cargo.toml
[INFO] started frobbing lshlyapnikov/grokking-rust
[INFO] finished frobbing lshlyapnikov/grokking-rust
[INFO] frobbed toml for lshlyapnikov/grokking-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lshlyapnikov/grokking-rust/Cargo.toml
[INFO] crate lshlyapnikov/grokking-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 lshlyapnikov/grokking-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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lshlyapnikov/grokking-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] a75d7e820522b2ea63740c11d6192c1883f342ba0960324005a4709c9ddc83b8
[INFO] running `"docker" "start" "-a" "a75d7e820522b2ea63740c11d6192c1883f342ba0960324005a4709c9ddc83b8"`
[INFO] [stderr]    Compiling libc v0.2.6
[INFO] [stderr]    Compiling winapi v0.2.5
[INFO] [stderr]    Compiling regex-syntax v0.2.2
[INFO] [stderr]    Compiling advapi32-sys v0.1.2
[INFO] [stderr]    Compiling memchr v0.1.7
[INFO] [stderr]    Compiling log v0.3.5
[INFO] [stderr]    Compiling rand v0.3.13
[INFO] [stderr]    Compiling aho-corasick v0.4.1
[INFO] [stderr]    Compiling regex v0.1.48
[INFO] [stderr]    Compiling env_logger v0.3.2
[INFO] [stderr]    Compiling quickcheck v0.2.25
[INFO] [stderr]    Compiling grokking-rust v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `volumes`
[INFO] [stderr]   --> src/grok/waterpouring.rs:40:7
[INFO] [stderr]    |
[INFO] [stderr] 40 |   let volumes: Vec<usize> = vec![0, max_volumes.len()];
[INFO] [stderr]    |       ^^^^^^^ help: consider prefixing with an underscore: `_volumes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `required_volume`
[INFO] [stderr]   --> src/grok/waterpouring.rs:39:40
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn solve(max_volumes: &Vec<usize>, required_volume: usize) -> State {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_required_volume`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Fill`
[INFO] [stderr]  --> src/grok/waterpouring.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   Fill { glass: usize },
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Empty`
[INFO] [stderr]  --> src/grok/waterpouring.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Empty { glass: usize },
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Transfer`
[INFO] [stderr]  --> src/grok/waterpouring.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   Transfer { from: usize, to: usize },
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]   --> src/grok/waterpouring.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn solve(max_volumes: &Vec<usize>, required_volume: usize) -> State {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.80s
[INFO] running `"docker" "inspect" "a75d7e820522b2ea63740c11d6192c1883f342ba0960324005a4709c9ddc83b8"`
[INFO] running `"docker" "rm" "-f" "a75d7e820522b2ea63740c11d6192c1883f342ba0960324005a4709c9ddc83b8"`
[INFO] [stdout] a75d7e820522b2ea63740c11d6192c1883f342ba0960324005a4709c9ddc83b8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lshlyapnikov/grokking-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] 17e5725a1c4fc536a266af2af0ad07fe9ee53f58d602c0bca99349db981ade02
[INFO] running `"docker" "start" "-a" "17e5725a1c4fc536a266af2af0ad07fe9ee53f58d602c0bca99349db981ade02"`
[INFO] [stderr]    Compiling grokking-rust v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `volumes`
[INFO] [stderr]   --> src/grok/waterpouring.rs:40:7
[INFO] [stderr]    |
[INFO] [stderr] 40 |   let volumes: Vec<usize> = vec![0, max_volumes.len()];
[INFO] [stderr]    |       ^^^^^^^ help: consider prefixing with an underscore: `_volumes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `required_volume`
[INFO] [stderr]   --> src/grok/waterpouring.rs:39:40
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn solve(max_volumes: &Vec<usize>, required_volume: usize) -> State {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_required_volume`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Fill`
[INFO] [stderr]  --> src/grok/waterpouring.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   Fill { glass: usize },
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Empty`
[INFO] [stderr]  --> src/grok/waterpouring.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Empty { glass: usize },
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Transfer`
[INFO] [stderr]  --> src/grok/waterpouring.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   Transfer { from: usize, to: usize },
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]   --> src/grok/waterpouring.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn solve(max_volumes: &Vec<usize>, required_volume: usize) -> State {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "17e5725a1c4fc536a266af2af0ad07fe9ee53f58d602c0bca99349db981ade02"`
[INFO] running `"docker" "rm" "-f" "17e5725a1c4fc536a266af2af0ad07fe9ee53f58d602c0bca99349db981ade02"`
[INFO] [stdout] 17e5725a1c4fc536a266af2af0ad07fe9ee53f58d602c0bca99349db981ade02
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lshlyapnikov/grokking-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] 275f574f578519b54962656b00b12ba3782fcdb1e7716d71aabc1718bfab7018
[INFO] running `"docker" "start" "-a" "275f574f578519b54962656b00b12ba3782fcdb1e7716d71aabc1718bfab7018"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/grokking_rust-1a5a3d508f1f35ff
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_mergesort ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "275f574f578519b54962656b00b12ba3782fcdb1e7716d71aabc1718bfab7018"`
[INFO] running `"docker" "rm" "-f" "275f574f578519b54962656b00b12ba3782fcdb1e7716d71aabc1718bfab7018"`
[INFO] [stdout] 275f574f578519b54962656b00b12ba3782fcdb1e7716d71aabc1718bfab7018