[INFO] updating cached repository sgraf812/bench-mode
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sgraf812/bench-mode
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sgraf812/bench-mode" "work/ex/beta-1.37-6/sources/1.36.0/gh/sgraf812/bench-mode"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/sgraf812/bench-mode'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sgraf812/bench-mode" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sgraf812/bench-mode"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sgraf812/bench-mode'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 15ece805c450d3477a0a6e980c36535fdc95b149
[INFO] sha for GitHub repo sgraf812/bench-mode: 15ece805c450d3477a0a6e980c36535fdc95b149
[INFO] validating manifest of sgraf812/bench-mode 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 sgraf812/bench-mode 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 sgraf812/bench-mode
[INFO] finished frobbing sgraf812/bench-mode
[INFO] frobbed toml for sgraf812/bench-mode written to work/ex/beta-1.37-6/sources/1.36.0/gh/sgraf812/bench-mode/Cargo.toml
[INFO] started frobbing sgraf812/bench-mode
[INFO] finished frobbing sgraf812/bench-mode
[INFO] frobbed toml for sgraf812/bench-mode written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sgraf812/bench-mode/Cargo.toml
[INFO] crate sgraf812/bench-mode 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing sgraf812/bench-mode 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-4/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/sgraf812/bench-mode:/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] 3ea6099f3c0804a3b1a6c84057941ac7c5004c91c8654b350ab8d5d825dfc0b3
[INFO] running `"docker" "start" "-a" "3ea6099f3c0804a3b1a6c84057941ac7c5004c91c8654b350ab8d5d825dfc0b3"`
[INFO] [stderr]    Compiling regex v1.0.3
[INFO] [stderr]    Compiling aho-corasick v0.6.6
[INFO] [stderr]    Compiling bench-mode v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Balanced`
[INFO] [stderr]   --> src/main.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     Balanced,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Max`
[INFO] [stderr]   --> src/main.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     Max,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.51s
[INFO] running `"docker" "inspect" "3ea6099f3c0804a3b1a6c84057941ac7c5004c91c8654b350ab8d5d825dfc0b3"`
[INFO] running `"docker" "rm" "-f" "3ea6099f3c0804a3b1a6c84057941ac7c5004c91c8654b350ab8d5d825dfc0b3"`
[INFO] [stdout] 3ea6099f3c0804a3b1a6c84057941ac7c5004c91c8654b350ab8d5d825dfc0b3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/sgraf812/bench-mode:/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] 838f4d5c1bf2b72b79fc2a90c6102256595f4de8b91eab9a0fd76859227083ac
[INFO] running `"docker" "start" "-a" "838f4d5c1bf2b72b79fc2a90c6102256595f4de8b91eab9a0fd76859227083ac"`
[INFO] [stderr]    Compiling bench-mode v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Balanced`
[INFO] [stderr]   --> src/main.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     Balanced,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Max`
[INFO] [stderr]   --> src/main.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     Max,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `"docker" "inspect" "838f4d5c1bf2b72b79fc2a90c6102256595f4de8b91eab9a0fd76859227083ac"`
[INFO] running `"docker" "rm" "-f" "838f4d5c1bf2b72b79fc2a90c6102256595f4de8b91eab9a0fd76859227083ac"`
[INFO] [stdout] 838f4d5c1bf2b72b79fc2a90c6102256595f4de8b91eab9a0fd76859227083ac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/sgraf812/bench-mode:/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] 15291b62681dcc73cc6afd85fe0eb9540bca567021dfd37634509f74b061c8f8
[INFO] running `"docker" "start" "-a" "15291b62681dcc73cc6afd85fe0eb9540bca567021dfd37634509f74b061c8f8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[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] [stderr]      Running /opt/crater/target/debug/deps/bench_mode-fe3d94547572058b
[INFO] running `"docker" "inspect" "15291b62681dcc73cc6afd85fe0eb9540bca567021dfd37634509f74b061c8f8"`
[INFO] running `"docker" "rm" "-f" "15291b62681dcc73cc6afd85fe0eb9540bca567021dfd37634509f74b061c8f8"`
[INFO] [stdout] 15291b62681dcc73cc6afd85fe0eb9540bca567021dfd37634509f74b061c8f8