[INFO] updating cached repository ChalkPE/rust-playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ChalkPE/rust-playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ChalkPE/rust-playground" "work/ex/beta-1.37-6/sources/1.36.0/gh/ChalkPE/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ChalkPE/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ChalkPE/rust-playground" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ChalkPE/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ChalkPE/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ce5291c7e5bf4ea81a07e761331e8985958ca714
[INFO] sha for GitHub repo ChalkPE/rust-playground: ce5291c7e5bf4ea81a07e761331e8985958ca714
[INFO] validating manifest of ChalkPE/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 ChalkPE/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 ChalkPE/rust-playground
[INFO] finished frobbing ChalkPE/rust-playground
[INFO] frobbed toml for ChalkPE/rust-playground written to work/ex/beta-1.37-6/sources/1.36.0/gh/ChalkPE/rust-playground/Cargo.toml
[INFO] started frobbing ChalkPE/rust-playground
[INFO] finished frobbing ChalkPE/rust-playground
[INFO] frobbed toml for ChalkPE/rust-playground written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ChalkPE/rust-playground/Cargo.toml
[INFO] crate ChalkPE/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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ChalkPE/rust-playground against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ChalkPE/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] dac1b0991e94d5e13a45639e15743b665c7526d1b32f252c0e21915b0a9d21a6
[INFO] running `"docker" "start" "-a" "dac1b0991e94d5e13a45639e15743b665c7526d1b32f252c0e21915b0a9d21a6"`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "dac1b0991e94d5e13a45639e15743b665c7526d1b32f252c0e21915b0a9d21a6"`
[INFO] running `"docker" "rm" "-f" "dac1b0991e94d5e13a45639e15743b665c7526d1b32f252c0e21915b0a9d21a6"`
[INFO] [stdout] dac1b0991e94d5e13a45639e15743b665c7526d1b32f252c0e21915b0a9d21a6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ChalkPE/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] d30102d6ee5e9ed126ac03a1dacee272c9a8b139f48bc8f6a9848dfb86aa9020
[INFO] running `"docker" "start" "-a" "d30102d6ee5e9ed126ac03a1dacee272c9a8b139f48bc8f6a9848dfb86aa9020"`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "d30102d6ee5e9ed126ac03a1dacee272c9a8b139f48bc8f6a9848dfb86aa9020"`
[INFO] running `"docker" "rm" "-f" "d30102d6ee5e9ed126ac03a1dacee272c9a8b139f48bc8f6a9848dfb86aa9020"`
[INFO] [stdout] d30102d6ee5e9ed126ac03a1dacee272c9a8b139f48bc8f6a9848dfb86aa9020
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ChalkPE/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 638aad3ec47aa1c5db35bb087151cc565f1ab717eaac2cd7d39ee48989543977
[INFO] running `"docker" "start" "-a" "638aad3ec47aa1c5db35bb087151cc565f1ab717eaac2cd7d39ee48989543977"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/playground-7377fbfcbe5e7799
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "638aad3ec47aa1c5db35bb087151cc565f1ab717eaac2cd7d39ee48989543977"`
[INFO] running `"docker" "rm" "-f" "638aad3ec47aa1c5db35bb087151cc565f1ab717eaac2cd7d39ee48989543977"`
[INFO] [stdout] 638aad3ec47aa1c5db35bb087151cc565f1ab717eaac2cd7d39ee48989543977