[INFO] updating cached repository demurgos/detect-desktop-environment
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/demurgos/detect-desktop-environment
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/demurgos/detect-desktop-environment" "work/ex/beta-1.38-1/sources/1.37.0/gh/demurgos/detect-desktop-environment"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/demurgos/detect-desktop-environment'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/demurgos/detect-desktop-environment" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/demurgos/detect-desktop-environment"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/demurgos/detect-desktop-environment'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d6bcd24aca61957c9c4b8e18f058036fa33a2a7f
[INFO] sha for GitHub repo demurgos/detect-desktop-environment: d6bcd24aca61957c9c4b8e18f058036fa33a2a7f
[INFO] validating manifest of demurgos/detect-desktop-environment 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 demurgos/detect-desktop-environment 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 demurgos/detect-desktop-environment
[INFO] finished frobbing demurgos/detect-desktop-environment
[INFO] frobbed toml for demurgos/detect-desktop-environment written to work/ex/beta-1.38-1/sources/1.37.0/gh/demurgos/detect-desktop-environment/Cargo.toml
[INFO] started frobbing demurgos/detect-desktop-environment
[INFO] finished frobbing demurgos/detect-desktop-environment
[INFO] frobbed toml for demurgos/detect-desktop-environment written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/demurgos/detect-desktop-environment/Cargo.toml
[INFO] crate demurgos/detect-desktop-environment 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 demurgos/detect-desktop-environment 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-5/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/demurgos/detect-desktop-environment:/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] ea495cec5a14e339b9994cee42c599bad7298f307a87fe4391a1b7ae32c27d3a
[INFO] running `"docker" "start" "-a" "ea495cec5a14e339b9994cee42c599bad7298f307a87fe4391a1b7ae32c27d3a"`
[INFO] [stderr]    Compiling detect-desktop-environment v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `"docker" "inspect" "ea495cec5a14e339b9994cee42c599bad7298f307a87fe4391a1b7ae32c27d3a"`
[INFO] running `"docker" "rm" "-f" "ea495cec5a14e339b9994cee42c599bad7298f307a87fe4391a1b7ae32c27d3a"`
[INFO] [stdout] ea495cec5a14e339b9994cee42c599bad7298f307a87fe4391a1b7ae32c27d3a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/demurgos/detect-desktop-environment:/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] 521a27d751d6de8de3507ee5958dae4d73ddaf762bb86db3a6b7651c1efb816b
[INFO] running `"docker" "start" "-a" "521a27d751d6de8de3507ee5958dae4d73ddaf762bb86db3a6b7651c1efb816b"`
[INFO] [stderr]    Compiling detect-desktop-environment v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `"docker" "inspect" "521a27d751d6de8de3507ee5958dae4d73ddaf762bb86db3a6b7651c1efb816b"`
[INFO] running `"docker" "rm" "-f" "521a27d751d6de8de3507ee5958dae4d73ddaf762bb86db3a6b7651c1efb816b"`
[INFO] [stdout] 521a27d751d6de8de3507ee5958dae4d73ddaf762bb86db3a6b7651c1efb816b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/demurgos/detect-desktop-environment:/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] e2d5cdad24c54db772892eac970b2030f216b931afa418d74164d93756640cef
[INFO] running `"docker" "start" "-a" "e2d5cdad24c54db772892eac970b2030f216b931afa418d74164d93756640cef"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/detect_desktop_environment-e8fabe759e860f2a
[INFO] [stderr]      Running /opt/crater/target/debug/deps/detect_desktop_environment-75e0118ddc9cfe29
[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] [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 detect_desktop_environment
[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" "e2d5cdad24c54db772892eac970b2030f216b931afa418d74164d93756640cef"`
[INFO] running `"docker" "rm" "-f" "e2d5cdad24c54db772892eac970b2030f216b931afa418d74164d93756640cef"`
[INFO] [stdout] e2d5cdad24c54db772892eac970b2030f216b931afa418d74164d93756640cef