[INFO] updating cached repository archer884/swaptracker
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/archer884/swaptracker
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/archer884/swaptracker" "work/ex/beta-1.37-6/sources/1.36.0/gh/archer884/swaptracker"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/archer884/swaptracker'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/archer884/swaptracker" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/archer884/swaptracker"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/archer884/swaptracker'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e95e27ca1b6b97b0d896e88843b955f4b54830cf
[INFO] sha for GitHub repo archer884/swaptracker: e95e27ca1b6b97b0d896e88843b955f4b54830cf
[INFO] validating manifest of archer884/swaptracker 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 archer884/swaptracker 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 archer884/swaptracker
[INFO] finished frobbing archer884/swaptracker
[INFO] frobbed toml for archer884/swaptracker written to work/ex/beta-1.37-6/sources/1.36.0/gh/archer884/swaptracker/Cargo.toml
[INFO] started frobbing archer884/swaptracker
[INFO] finished frobbing archer884/swaptracker
[INFO] frobbed toml for archer884/swaptracker written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/archer884/swaptracker/Cargo.toml
[INFO] crate archer884/swaptracker 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 archer884/swaptracker 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-1/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/archer884/swaptracker:/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] 59da5ffed00b54b1063f8846b5b7970936534b4fb9a466f8a643fbbd329a262d
[INFO] running `"docker" "start" "-a" "59da5ffed00b54b1063f8846b5b7970936534b4fb9a466f8a643fbbd329a262d"`
[INFO] [stderr]    Compiling sys-info v0.5.6
[INFO] [stderr]    Compiling swaptracker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:42:32
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:57:35
[INFO] [stderr]    |
[INFO] [stderr] 57 |         if let Some(cause) = self.cause() {
[INFO] [stderr]    |                                   ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.34s
[INFO] running `"docker" "inspect" "59da5ffed00b54b1063f8846b5b7970936534b4fb9a466f8a643fbbd329a262d"`
[INFO] running `"docker" "rm" "-f" "59da5ffed00b54b1063f8846b5b7970936534b4fb9a466f8a643fbbd329a262d"`
[INFO] [stdout] 59da5ffed00b54b1063f8846b5b7970936534b4fb9a466f8a643fbbd329a262d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/archer884/swaptracker:/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] 01f6e1e920c582eddf746f3822bc8331ca9c251a38a9d14531b55c12e1608291
[INFO] running `"docker" "start" "-a" "01f6e1e920c582eddf746f3822bc8331ca9c251a38a9d14531b55c12e1608291"`
[INFO] [stderr]    Compiling swaptracker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:42:32
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:57:35
[INFO] [stderr]    |
[INFO] [stderr] 57 |         if let Some(cause) = self.cause() {
[INFO] [stderr]    |                                   ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "01f6e1e920c582eddf746f3822bc8331ca9c251a38a9d14531b55c12e1608291"`
[INFO] running `"docker" "rm" "-f" "01f6e1e920c582eddf746f3822bc8331ca9c251a38a9d14531b55c12e1608291"`
[INFO] [stdout] 01f6e1e920c582eddf746f3822bc8331ca9c251a38a9d14531b55c12e1608291
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/archer884/swaptracker:/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] 866ba0197bf9d81a6605cf4d6317bae206e11ce47783ca0c6d9cbfdecd10628d
[INFO] running `"docker" "start" "-a" "866ba0197bf9d81a6605cf4d6317bae206e11ce47783ca0c6d9cbfdecd10628d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/swaptracker-d3c30878695fc140
[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" "866ba0197bf9d81a6605cf4d6317bae206e11ce47783ca0c6d9cbfdecd10628d"`
[INFO] running `"docker" "rm" "-f" "866ba0197bf9d81a6605cf4d6317bae206e11ce47783ca0c6d9cbfdecd10628d"`
[INFO] [stdout] 866ba0197bf9d81a6605cf4d6317bae206e11ce47783ca0c6d9cbfdecd10628d