[INFO] updating cached repository goodeggs/docker-compose-cacher
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/goodeggs/docker-compose-cacher
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/goodeggs/docker-compose-cacher" "work/ex/beta-1.37-6/sources/1.36.0/gh/goodeggs/docker-compose-cacher"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/goodeggs/docker-compose-cacher'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/goodeggs/docker-compose-cacher" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/goodeggs/docker-compose-cacher"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/goodeggs/docker-compose-cacher'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 50fe0b2765ee170d888b238cf519b07942691e28
[INFO] sha for GitHub repo goodeggs/docker-compose-cacher: 50fe0b2765ee170d888b238cf519b07942691e28
[INFO] validating manifest of goodeggs/docker-compose-cacher 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 goodeggs/docker-compose-cacher 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 goodeggs/docker-compose-cacher
[INFO] finished frobbing goodeggs/docker-compose-cacher
[INFO] frobbed toml for goodeggs/docker-compose-cacher written to work/ex/beta-1.37-6/sources/1.36.0/gh/goodeggs/docker-compose-cacher/Cargo.toml
[INFO] started frobbing goodeggs/docker-compose-cacher
[INFO] finished frobbing goodeggs/docker-compose-cacher
[INFO] frobbed toml for goodeggs/docker-compose-cacher written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/goodeggs/docker-compose-cacher/Cargo.toml
[INFO] crate goodeggs/docker-compose-cacher 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 goodeggs/docker-compose-cacher 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/goodeggs/docker-compose-cacher:/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] a8ea7296d5991aeba19c4768d76c108dd441cde573c4652e4efd01d3a0c55b0c
[INFO] running `"docker" "start" "-a" "a8ea7296d5991aeba19c4768d76c108dd441cde573c4652e4efd01d3a0c55b0c"`
[INFO] [stderr]    Compiling getopts v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.3.0
[INFO] [stderr]    Compiling deque v0.3.1
[INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.14/src/lib.rs:1008:33
[INFO] [stderr]      |
[INFO] [stderr] 955  |     let mut machine = |cont: &mut bool, (i, c): (usize, char)| {
[INFO] [stderr]      |                       ---------------------------------------- borrow of `state` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 959  |         state = match (state, whitespace, limit) {
[INFO] [stderr]      |                        ----- borrow occurs due to use of `state` in closure
[INFO] [stderr] ...
[INFO] [stderr] 1008 |     while cont && match state { B | C => true, A => false } {
[INFO] [stderr]      |                                 ^ use of borrowed `state`
[INFO] [stderr] 1009 |         machine(&mut cont, (fake_i, ' '));
[INFO] [stderr]      |         ------- borrow later used here
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]      = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]      = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling rayon v0.6.0
[INFO] [stderr]    Compiling docker-compose-cacher v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.90s
[INFO] running `"docker" "inspect" "a8ea7296d5991aeba19c4768d76c108dd441cde573c4652e4efd01d3a0c55b0c"`
[INFO] running `"docker" "rm" "-f" "a8ea7296d5991aeba19c4768d76c108dd441cde573c4652e4efd01d3a0c55b0c"`
[INFO] [stdout] a8ea7296d5991aeba19c4768d76c108dd441cde573c4652e4efd01d3a0c55b0c
[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/goodeggs/docker-compose-cacher:/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] 99ec68674ccfee087810db24a71e1b5fffac50e72366c2863eb6f174f3276944
[INFO] running `"docker" "start" "-a" "99ec68674ccfee087810db24a71e1b5fffac50e72366c2863eb6f174f3276944"`
[INFO] [stderr]    Compiling docker-compose-cacher v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "99ec68674ccfee087810db24a71e1b5fffac50e72366c2863eb6f174f3276944"`
[INFO] running `"docker" "rm" "-f" "99ec68674ccfee087810db24a71e1b5fffac50e72366c2863eb6f174f3276944"`
[INFO] [stdout] 99ec68674ccfee087810db24a71e1b5fffac50e72366c2863eb6f174f3276944
[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/goodeggs/docker-compose-cacher:/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] 7f3f97a20c4c6a36d716e699833ae5d256a56c865a1c263884d6df6fe7b8261d
[INFO] running `"docker" "start" "-a" "7f3f97a20c4c6a36d716e699833ae5d256a56c865a1c263884d6df6fe7b8261d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/docker_compose_cacher-c038e542108383a5
[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" "7f3f97a20c4c6a36d716e699833ae5d256a56c865a1c263884d6df6fe7b8261d"`
[INFO] running `"docker" "rm" "-f" "7f3f97a20c4c6a36d716e699833ae5d256a56c865a1c263884d6df6fe7b8261d"`
[INFO] [stdout] 7f3f97a20c4c6a36d716e699833ae5d256a56c865a1c263884d6df6fe7b8261d