[INFO] updating cached repository aapis/rust-playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aapis/rust-playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aapis/rust-playground" "work/ex/beta-1.38-1/sources/1.37.0/gh/aapis/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/aapis/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aapis/rust-playground" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aapis/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aapis/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 92d08d5fbbcd994f82e1ca4ba60325d90822f6bb
[INFO] sha for GitHub repo aapis/rust-playground: 92d08d5fbbcd994f82e1ca4ba60325d90822f6bb
[INFO] validating manifest of aapis/rust-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 aapis/rust-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 aapis/rust-playground
[INFO] finished frobbing aapis/rust-playground
[INFO] frobbed toml for aapis/rust-playground written to work/ex/beta-1.38-1/sources/1.37.0/gh/aapis/rust-playground/Cargo.toml
[INFO] started frobbing aapis/rust-playground
[INFO] finished frobbing aapis/rust-playground
[INFO] frobbed toml for aapis/rust-playground written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aapis/rust-playground/Cargo.toml
[INFO] crate aapis/rust-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 aapis/rust-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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aapis/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] d3c21917bb1cbae6cd8b94582ed1eac87baa6867f3a7fd3763c0d533eac9ec2b
[INFO] running `"docker" "start" "-a" "d3c21917bb1cbae6cd8b94582ed1eac87baa6867f3a7fd3763c0d533eac9ec2b"`
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling colored v1.6.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling chrono v0.4.5
[INFO] [stderr]    Compiling rust_playground v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.70s
[INFO] running `"docker" "inspect" "d3c21917bb1cbae6cd8b94582ed1eac87baa6867f3a7fd3763c0d533eac9ec2b"`
[INFO] running `"docker" "rm" "-f" "d3c21917bb1cbae6cd8b94582ed1eac87baa6867f3a7fd3763c0d533eac9ec2b"`
[INFO] [stdout] d3c21917bb1cbae6cd8b94582ed1eac87baa6867f3a7fd3763c0d533eac9ec2b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aapis/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1b4feeeaa9e146ce9cccc4985518fe6966af5c2e9da82cf8a318bf32f1253da3
[INFO] running `"docker" "start" "-a" "1b4feeeaa9e146ce9cccc4985518fe6966af5c2e9da82cf8a318bf32f1253da3"`
[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" "1b4feeeaa9e146ce9cccc4985518fe6966af5c2e9da82cf8a318bf32f1253da3"`
[INFO] running `"docker" "rm" "-f" "1b4feeeaa9e146ce9cccc4985518fe6966af5c2e9da82cf8a318bf32f1253da3"`
[INFO] [stdout] 1b4feeeaa9e146ce9cccc4985518fe6966af5c2e9da82cf8a318bf32f1253da3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aapis/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 3b6b3f5dbfb83d1a606f260962ccb6e557e37e8eb710f44507d3a5deec4834e3
[INFO] running `"docker" "start" "-a" "3b6b3f5dbfb83d1a606f260962ccb6e557e37e8eb710f44507d3a5deec4834e3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_playground-9378ba45959af4d7
[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" "3b6b3f5dbfb83d1a606f260962ccb6e557e37e8eb710f44507d3a5deec4834e3"`
[INFO] running `"docker" "rm" "-f" "3b6b3f5dbfb83d1a606f260962ccb6e557e37e8eb710f44507d3a5deec4834e3"`
[INFO] [stdout] 3b6b3f5dbfb83d1a606f260962ccb6e557e37e8eb710f44507d3a5deec4834e3