[INFO] updating cached repository nosferatu500/Aurora_VB
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nosferatu500/Aurora_VB
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nosferatu500/Aurora_VB" "work/ex/beta-1.37-6/sources/1.36.0/gh/nosferatu500/Aurora_VB"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/nosferatu500/Aurora_VB'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nosferatu500/Aurora_VB" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nosferatu500/Aurora_VB"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nosferatu500/Aurora_VB'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 66cdef0445cc54333d6bc3c7b8b3fb4c72f11bfd
[INFO] sha for GitHub repo nosferatu500/Aurora_VB: 66cdef0445cc54333d6bc3c7b8b3fb4c72f11bfd
[INFO] validating manifest of nosferatu500/Aurora_VB 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 nosferatu500/Aurora_VB 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 nosferatu500/Aurora_VB
[INFO] finished frobbing nosferatu500/Aurora_VB
[INFO] frobbed toml for nosferatu500/Aurora_VB written to work/ex/beta-1.37-6/sources/1.36.0/gh/nosferatu500/Aurora_VB/Cargo.toml
[INFO] started frobbing nosferatu500/Aurora_VB
[INFO] finished frobbing nosferatu500/Aurora_VB
[INFO] frobbed toml for nosferatu500/Aurora_VB written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nosferatu500/Aurora_VB/Cargo.toml
[INFO] crate nosferatu500/Aurora_VB 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 nosferatu500/Aurora_VB 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-7/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/nosferatu500/Aurora_VB:/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] 344f4e4cdba34f4acf3e6f2143deaaed47ade617bd625a0e185f0ba40ce05d6b
[INFO] running `"docker" "start" "-a" "344f4e4cdba34f4acf3e6f2143deaaed47ade617bd625a0e185f0ba40ce05d6b"`
[INFO] [stderr]    Compiling aurora_vb v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `cycles`
[INFO] [stderr]   --> src/interconnect.rs:54:30
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn cycles(&mut self, cycles: usize) {
[INFO] [stderr]    |                              ^^^^^^ help: consider prefixing with an underscore: `_cycles`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `"docker" "inspect" "344f4e4cdba34f4acf3e6f2143deaaed47ade617bd625a0e185f0ba40ce05d6b"`
[INFO] running `"docker" "rm" "-f" "344f4e4cdba34f4acf3e6f2143deaaed47ade617bd625a0e185f0ba40ce05d6b"`
[INFO] [stdout] 344f4e4cdba34f4acf3e6f2143deaaed47ade617bd625a0e185f0ba40ce05d6b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/nosferatu500/Aurora_VB:/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] b6731cac9fe635dc7680e638cd57998d624a35973bdd3a04cdf5627551b30131
[INFO] running `"docker" "start" "-a" "b6731cac9fe635dc7680e638cd57998d624a35973bdd3a04cdf5627551b30131"`
[INFO] [stderr]    Compiling aurora_vb v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `cycles`
[INFO] [stderr]   --> src/interconnect.rs:54:30
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn cycles(&mut self, cycles: usize) {
[INFO] [stderr]    |                              ^^^^^^ help: consider prefixing with an underscore: `_cycles`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "b6731cac9fe635dc7680e638cd57998d624a35973bdd3a04cdf5627551b30131"`
[INFO] running `"docker" "rm" "-f" "b6731cac9fe635dc7680e638cd57998d624a35973bdd3a04cdf5627551b30131"`
[INFO] [stdout] b6731cac9fe635dc7680e638cd57998d624a35973bdd3a04cdf5627551b30131
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/nosferatu500/Aurora_VB:/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] b4db97ebae5695f80f95c8e6060867031d4597565eff17daf3b1f02eb487d64d
[INFO] running `"docker" "start" "-a" "b4db97ebae5695f80f95c8e6060867031d4597565eff17daf3b1f02eb487d64d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/aurora_vb-77a3536904ca24f7
[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" "b4db97ebae5695f80f95c8e6060867031d4597565eff17daf3b1f02eb487d64d"`
[INFO] running `"docker" "rm" "-f" "b4db97ebae5695f80f95c8e6060867031d4597565eff17daf3b1f02eb487d64d"`
[INFO] [stdout] b4db97ebae5695f80f95c8e6060867031d4597565eff17daf3b1f02eb487d64d