[INFO] updating cached repository matthunz/emul8r
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/matthunz/emul8r
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/matthunz/emul8r" "work/ex/beta-1.37-6/sources/1.36.0/gh/matthunz/emul8r"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/matthunz/emul8r'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/matthunz/emul8r" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/matthunz/emul8r"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/matthunz/emul8r'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c62a2b457ba63c2a51f03f56c4079389ad022ca3
[INFO] sha for GitHub repo matthunz/emul8r: c62a2b457ba63c2a51f03f56c4079389ad022ca3
[INFO] validating manifest of matthunz/emul8r 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 matthunz/emul8r 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 matthunz/emul8r
[INFO] finished frobbing matthunz/emul8r
[INFO] frobbed toml for matthunz/emul8r written to work/ex/beta-1.37-6/sources/1.36.0/gh/matthunz/emul8r/Cargo.toml
[INFO] started frobbing matthunz/emul8r
[INFO] finished frobbing matthunz/emul8r
[INFO] frobbed toml for matthunz/emul8r written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/matthunz/emul8r/Cargo.toml
[INFO] crate matthunz/emul8r 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 matthunz/emul8r against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/matthunz/emul8r:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 55492bbc41623c92a978dbd893c7cf0a2d490827cd62c07a428b5e14dada894c
[INFO] running `"docker" "start" "-a" "55492bbc41623c92a978dbd893c7cf0a2d490827cd62c07a428b5e14dada894c"`
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling emul8r v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Cpu`
[INFO] [stderr]  --> src/cpu.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Cpu {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/cpu.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new() -> Self {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `opcode`
[INFO] [stderr]   --> src/cpu.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn opcode(&mut self, op: Op) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.12s
[INFO] running `"docker" "inspect" "55492bbc41623c92a978dbd893c7cf0a2d490827cd62c07a428b5e14dada894c"`
[INFO] running `"docker" "rm" "-f" "55492bbc41623c92a978dbd893c7cf0a2d490827cd62c07a428b5e14dada894c"`
[INFO] [stdout] 55492bbc41623c92a978dbd893c7cf0a2d490827cd62c07a428b5e14dada894c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/matthunz/emul8r:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] da787b52f6a9ddd641fab6d0a40d7689a45858e26a5ed60cabb24d930e6c18f6
[INFO] running `"docker" "start" "-a" "da787b52f6a9ddd641fab6d0a40d7689a45858e26a5ed60cabb24d930e6c18f6"`
[INFO] [stderr]    Compiling emul8r v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `"docker" "inspect" "da787b52f6a9ddd641fab6d0a40d7689a45858e26a5ed60cabb24d930e6c18f6"`
[INFO] running `"docker" "rm" "-f" "da787b52f6a9ddd641fab6d0a40d7689a45858e26a5ed60cabb24d930e6c18f6"`
[INFO] [stdout] da787b52f6a9ddd641fab6d0a40d7689a45858e26a5ed60cabb24d930e6c18f6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/matthunz/emul8r:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 687ba1cd938cb97286fac56eda10362dee1e6a68da78000be6f4c6a963e330a9
[INFO] running `"docker" "start" "-a" "687ba1cd938cb97286fac56eda10362dee1e6a68da78000be6f4c6a963e330a9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/emul8r-b170da0c2d27bb6c
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test cpu::test::cpu ... 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" "687ba1cd938cb97286fac56eda10362dee1e6a68da78000be6f4c6a963e330a9"`
[INFO] running `"docker" "rm" "-f" "687ba1cd938cb97286fac56eda10362dee1e6a68da78000be6f4c6a963e330a9"`
[INFO] [stdout] 687ba1cd938cb97286fac56eda10362dee1e6a68da78000be6f4c6a963e330a9