[INFO] updating cached repository sile/skua
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sile/skua
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sile/skua" "work/ex/beta-1.38-1/sources/1.37.0/gh/sile/skua"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sile/skua'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sile/skua" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sile/skua"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sile/skua'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 037e8d969ea9fd60db8c90cccfe748f1c38c3248
[INFO] sha for GitHub repo sile/skua: 037e8d969ea9fd60db8c90cccfe748f1c38c3248
[INFO] validating manifest of sile/skua on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sile/skua on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sile/skua
[INFO] finished frobbing sile/skua
[INFO] frobbed toml for sile/skua written to work/ex/beta-1.38-1/sources/1.37.0/gh/sile/skua/Cargo.toml
[INFO] started frobbing sile/skua
[INFO] finished frobbing sile/skua
[INFO] frobbed toml for sile/skua written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sile/skua/Cargo.toml
[INFO] crate sile/skua already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing sile/skua against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sile/skua:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] d77ff4d992d0afbd5dab3c6fa7006be76b088a03ff05ccd5336bb365b2d9eeeb
[INFO] running `"docker" "start" "-a" "d77ff4d992d0afbd5dab3c6fa7006be76b088a03ff05ccd5336bb365b2d9eeeb"`
[INFO] [stderr]    Compiling trackable v0.2.10
[INFO] [stderr]    Compiling clap v2.29.4
[INFO] [stderr]    Compiling skua v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]  --> src/error.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | derive_traits_for_trackable_error_newtype!(Error, Failed);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.14s
[INFO] running `"docker" "inspect" "d77ff4d992d0afbd5dab3c6fa7006be76b088a03ff05ccd5336bb365b2d9eeeb"`
[INFO] running `"docker" "rm" "-f" "d77ff4d992d0afbd5dab3c6fa7006be76b088a03ff05ccd5336bb365b2d9eeeb"`
[INFO] [stdout] d77ff4d992d0afbd5dab3c6fa7006be76b088a03ff05ccd5336bb365b2d9eeeb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sile/skua:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] a03e2f2af04592f345c8f8c9287dd810744cf0d7cd6b9bd65df66cabbad6b5c1
[INFO] running `"docker" "start" "-a" "a03e2f2af04592f345c8f8c9287dd810744cf0d7cd6b9bd65df66cabbad6b5c1"`
[INFO] [stderr]    Compiling skua v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]  --> src/error.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | derive_traits_for_trackable_error_newtype!(Error, Failed);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "a03e2f2af04592f345c8f8c9287dd810744cf0d7cd6b9bd65df66cabbad6b5c1"`
[INFO] running `"docker" "rm" "-f" "a03e2f2af04592f345c8f8c9287dd810744cf0d7cd6b9bd65df66cabbad6b5c1"`
[INFO] [stdout] a03e2f2af04592f345c8f8c9287dd810744cf0d7cd6b9bd65df66cabbad6b5c1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sile/skua:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 0590d54c64da21b7e6bd497a2dcacf7c7d2ad59be692191db92ec4f1886159ea
[INFO] running `"docker" "start" "-a" "0590d54c64da21b7e6bd497a2dcacf7c7d2ad59be692191db92ec4f1886159ea"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/skua-de0b7f9cf3892e77
[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/skua-b97fca6054ae4e9c
[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]    Doc-tests skua
[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" "0590d54c64da21b7e6bd497a2dcacf7c7d2ad59be692191db92ec4f1886159ea"`
[INFO] running `"docker" "rm" "-f" "0590d54c64da21b7e6bd497a2dcacf7c7d2ad59be692191db92ec4f1886159ea"`
[INFO] [stdout] 0590d54c64da21b7e6bd497a2dcacf7c7d2ad59be692191db92ec4f1886159ea