[INFO] updating cached repository wscrimsher3/Playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wscrimsher3/Playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wscrimsher3/Playground" "work/ex/beta-1.38-1/sources/1.37.0/gh/wscrimsher3/Playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/wscrimsher3/Playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wscrimsher3/Playground" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wscrimsher3/Playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wscrimsher3/Playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3c2b94c075f3d002203561dacf13d801e54487fb
[INFO] sha for GitHub repo wscrimsher3/Playground: 3c2b94c075f3d002203561dacf13d801e54487fb
[INFO] validating manifest of wscrimsher3/Playground 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 wscrimsher3/Playground 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 wscrimsher3/Playground
[INFO] finished frobbing wscrimsher3/Playground
[INFO] frobbed toml for wscrimsher3/Playground written to work/ex/beta-1.38-1/sources/1.37.0/gh/wscrimsher3/Playground/Cargo.toml
[INFO] started frobbing wscrimsher3/Playground
[INFO] finished frobbing wscrimsher3/Playground
[INFO] frobbed toml for wscrimsher3/Playground written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wscrimsher3/Playground/Cargo.toml
[INFO] crate wscrimsher3/Playground 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 wscrimsher3/Playground 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-1/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/wscrimsher3/Playground:/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] d6fd3d159ee2595dd901ca7a05b4b3917b8cc0ae27ac183e894777496b182deb
[INFO] running `"docker" "start" "-a" "d6fd3d159ee2595dd901ca7a05b4b3917b8cc0ae27ac183e894777496b182deb"`
[INFO] [stderr]    Compiling Playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `Playground` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `playground`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "d6fd3d159ee2595dd901ca7a05b4b3917b8cc0ae27ac183e894777496b182deb"`
[INFO] running `"docker" "rm" "-f" "d6fd3d159ee2595dd901ca7a05b4b3917b8cc0ae27ac183e894777496b182deb"`
[INFO] [stdout] d6fd3d159ee2595dd901ca7a05b4b3917b8cc0ae27ac183e894777496b182deb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/wscrimsher3/Playground:/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] ac907cf0fd80d1c3a1849e6ad68ed038caa58a00d1a208e049b777c676cca9c1
[INFO] running `"docker" "start" "-a" "ac907cf0fd80d1c3a1849e6ad68ed038caa58a00d1a208e049b777c676cca9c1"`
[INFO] [stderr]    Compiling Playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `Playground` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `playground`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "ac907cf0fd80d1c3a1849e6ad68ed038caa58a00d1a208e049b777c676cca9c1"`
[INFO] running `"docker" "rm" "-f" "ac907cf0fd80d1c3a1849e6ad68ed038caa58a00d1a208e049b777c676cca9c1"`
[INFO] [stdout] ac907cf0fd80d1c3a1849e6ad68ed038caa58a00d1a208e049b777c676cca9c1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/wscrimsher3/Playground:/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] aae37a7fbd0b5cb93c3fc26764951fd422bb84403bc20fdc3c524c3b32286a81
[INFO] running `"docker" "start" "-a" "aae37a7fbd0b5cb93c3fc26764951fd422bb84403bc20fdc3c524c3b32286a81"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/Playground-bea2fd13b836009a
[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" "aae37a7fbd0b5cb93c3fc26764951fd422bb84403bc20fdc3c524c3b32286a81"`
[INFO] running `"docker" "rm" "-f" "aae37a7fbd0b5cb93c3fc26764951fd422bb84403bc20fdc3c524c3b32286a81"`
[INFO] [stdout] aae37a7fbd0b5cb93c3fc26764951fd422bb84403bc20fdc3c524c3b32286a81