[INFO] updating cached repository Murtaza0xFF/Rust-Playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Murtaza0xFF/Rust-Playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Murtaza0xFF/Rust-Playground" "work/ex/beta-1.37-6/sources/1.36.0/gh/Murtaza0xFF/Rust-Playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Murtaza0xFF/Rust-Playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Murtaza0xFF/Rust-Playground" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Murtaza0xFF/Rust-Playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Murtaza0xFF/Rust-Playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2117cbce957456e035f370e30bf09888ab181af4
[INFO] sha for GitHub repo Murtaza0xFF/Rust-Playground: 2117cbce957456e035f370e30bf09888ab181af4
[INFO] validating manifest of Murtaza0xFF/Rust-Playground 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 Murtaza0xFF/Rust-Playground 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 Murtaza0xFF/Rust-Playground
[INFO] finished frobbing Murtaza0xFF/Rust-Playground
[INFO] frobbed toml for Murtaza0xFF/Rust-Playground written to work/ex/beta-1.37-6/sources/1.36.0/gh/Murtaza0xFF/Rust-Playground/Cargo.toml
[INFO] started frobbing Murtaza0xFF/Rust-Playground
[INFO] finished frobbing Murtaza0xFF/Rust-Playground
[INFO] frobbed toml for Murtaza0xFF/Rust-Playground written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Murtaza0xFF/Rust-Playground/Cargo.toml
[INFO] crate Murtaza0xFF/Rust-Playground 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 Murtaza0xFF/Rust-Playground against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Murtaza0xFF/Rust-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 4a49dbc67ab91c72583f1ad644e647cf96aea1fa7684a013cadaa7534bf701cc
[INFO] running `"docker" "start" "-a" "4a49dbc67ab91c72583f1ad644e647cf96aea1fa7684a013cadaa7534bf701cc"`
[INFO] [stderr]    Compiling rust_playground v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "4a49dbc67ab91c72583f1ad644e647cf96aea1fa7684a013cadaa7534bf701cc"`
[INFO] running `"docker" "rm" "-f" "4a49dbc67ab91c72583f1ad644e647cf96aea1fa7684a013cadaa7534bf701cc"`
[INFO] [stdout] 4a49dbc67ab91c72583f1ad644e647cf96aea1fa7684a013cadaa7534bf701cc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Murtaza0xFF/Rust-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 91ad8913b8f1349312d5ed1675c1b3840e5234f4b24042a33eb5e60df03759c5
[INFO] running `"docker" "start" "-a" "91ad8913b8f1349312d5ed1675c1b3840e5234f4b24042a33eb5e60df03759c5"`
[INFO] [stderr]    Compiling rust_playground v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "91ad8913b8f1349312d5ed1675c1b3840e5234f4b24042a33eb5e60df03759c5"`
[INFO] running `"docker" "rm" "-f" "91ad8913b8f1349312d5ed1675c1b3840e5234f4b24042a33eb5e60df03759c5"`
[INFO] [stdout] 91ad8913b8f1349312d5ed1675c1b3840e5234f4b24042a33eb5e60df03759c5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Murtaza0xFF/Rust-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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 32088748a3fdc052d35bf4d221a00e63639bbb76cf349704d9b216fc5bf31965
[INFO] running `"docker" "start" "-a" "32088748a3fdc052d35bf4d221a00e63639bbb76cf349704d9b216fc5bf31965"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_playground-5550e3382dcdd3a8
[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" "32088748a3fdc052d35bf4d221a00e63639bbb76cf349704d9b216fc5bf31965"`
[INFO] running `"docker" "rm" "-f" "32088748a3fdc052d35bf4d221a00e63639bbb76cf349704d9b216fc5bf31965"`
[INFO] [stdout] 32088748a3fdc052d35bf4d221a00e63639bbb76cf349704d9b216fc5bf31965