[INFO] updating cached repository rofinn/playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rofinn/playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rofinn/playground" "work/ex/beta-1.38-1/sources/1.37.0/gh/rofinn/playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rofinn/playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rofinn/playground" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rofinn/playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rofinn/playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ed06821e3298d179b19c2110d8b9ca6354bbd1a0
[INFO] sha for GitHub repo rofinn/playground: ed06821e3298d179b19c2110d8b9ca6354bbd1a0
[INFO] validating manifest of rofinn/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 rofinn/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 rofinn/playground
[INFO] finished frobbing rofinn/playground
[INFO] frobbed toml for rofinn/playground written to work/ex/beta-1.38-1/sources/1.37.0/gh/rofinn/playground/Cargo.toml
[INFO] started frobbing rofinn/playground
[INFO] finished frobbing rofinn/playground
[INFO] frobbed toml for rofinn/playground written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rofinn/playground/Cargo.toml
[INFO] crate rofinn/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 rofinn/playground against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rofinn/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 0217e1983794726f320aa5aefd03adc33c0c05943fb5b4c7910c39fbd0945be5
[INFO] running `"docker" "start" "-a" "0217e1983794726f320aa5aefd03adc33c0c05943fb5b4c7910c39fbd0945be5"`
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.54s
[INFO] running `"docker" "inspect" "0217e1983794726f320aa5aefd03adc33c0c05943fb5b4c7910c39fbd0945be5"`
[INFO] running `"docker" "rm" "-f" "0217e1983794726f320aa5aefd03adc33c0c05943fb5b4c7910c39fbd0945be5"`
[INFO] [stdout] 0217e1983794726f320aa5aefd03adc33c0c05943fb5b4c7910c39fbd0945be5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rofinn/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 712b361e2e44725a624d73e22dfa2b9dfb297ab4d9a8896c4dcce822faf63c94
[INFO] running `"docker" "start" "-a" "712b361e2e44725a624d73e22dfa2b9dfb297ab4d9a8896c4dcce822faf63c94"`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "712b361e2e44725a624d73e22dfa2b9dfb297ab4d9a8896c4dcce822faf63c94"`
[INFO] running `"docker" "rm" "-f" "712b361e2e44725a624d73e22dfa2b9dfb297ab4d9a8896c4dcce822faf63c94"`
[INFO] [stdout] 712b361e2e44725a624d73e22dfa2b9dfb297ab4d9a8896c4dcce822faf63c94
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rofinn/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 9594b01291dc604e5464043d4a580a4972aa2fed9ff8c0a64f6b18c363b27e77
[INFO] running `"docker" "start" "-a" "9594b01291dc604e5464043d4a580a4972aa2fed9ff8c0a64f6b18c363b27e77"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/playground-2b4b173b1caf44c9
[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" "9594b01291dc604e5464043d4a580a4972aa2fed9ff8c0a64f6b18c363b27e77"`
[INFO] running `"docker" "rm" "-f" "9594b01291dc604e5464043d4a580a4972aa2fed9ff8c0a64f6b18c363b27e77"`
[INFO] [stdout] 9594b01291dc604e5464043d4a580a4972aa2fed9ff8c0a64f6b18c363b27e77