[INFO] updating cached repository RyosukeCla/rust-playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/RyosukeCla/rust-playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/RyosukeCla/rust-playground" "work/ex/beta-1.38-1/sources/1.37.0/gh/RyosukeCla/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/RyosukeCla/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RyosukeCla/rust-playground" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RyosukeCla/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RyosukeCla/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6be6477b4b03aa76fd1b2cee4952e8ddc5063fa7
[INFO] sha for GitHub repo RyosukeCla/rust-playground: 6be6477b4b03aa76fd1b2cee4952e8ddc5063fa7
[INFO] validating manifest of RyosukeCla/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 RyosukeCla/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 RyosukeCla/rust-playground
[INFO] finished frobbing RyosukeCla/rust-playground
[INFO] frobbed toml for RyosukeCla/rust-playground written to work/ex/beta-1.38-1/sources/1.37.0/gh/RyosukeCla/rust-playground/Cargo.toml
[INFO] started frobbing RyosukeCla/rust-playground
[INFO] finished frobbing RyosukeCla/rust-playground
[INFO] frobbed toml for RyosukeCla/rust-playground written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RyosukeCla/rust-playground/Cargo.toml
[INFO] crate RyosukeCla/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 RyosukeCla/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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/RyosukeCla/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] 0d01ea28334604f222932b551bfa0688540cd798ce6e2869e031c7f730d0df06
[INFO] running `"docker" "start" "-a" "0d01ea28334604f222932b551bfa0688540cd798ce6e2869e031c7f730d0df06"`
[INFO] [stderr]    Compiling rand v0.4.1
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `"docker" "inspect" "0d01ea28334604f222932b551bfa0688540cd798ce6e2869e031c7f730d0df06"`
[INFO] running `"docker" "rm" "-f" "0d01ea28334604f222932b551bfa0688540cd798ce6e2869e031c7f730d0df06"`
[INFO] [stdout] 0d01ea28334604f222932b551bfa0688540cd798ce6e2869e031c7f730d0df06
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/RyosukeCla/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] a71e6bc298b0e4d7b906d9eb82df21ea8b368c573309da9b2236c467c2975af8
[INFO] running `"docker" "start" "-a" "a71e6bc298b0e4d7b906d9eb82df21ea8b368c573309da9b2236c467c2975af8"`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "a71e6bc298b0e4d7b906d9eb82df21ea8b368c573309da9b2236c467c2975af8"`
[INFO] running `"docker" "rm" "-f" "a71e6bc298b0e4d7b906d9eb82df21ea8b368c573309da9b2236c467c2975af8"`
[INFO] [stdout] a71e6bc298b0e4d7b906d9eb82df21ea8b368c573309da9b2236c467c2975af8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/RyosukeCla/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] eb8edac73e79d40bf3189d3a242d8583ec2f562adf3807f067d561af719f9f0a
[INFO] running `"docker" "start" "-a" "eb8edac73e79d40bf3189d3a242d8583ec2f562adf3807f067d561af719f9f0a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust-eb388fe051f91bcb
[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" "eb8edac73e79d40bf3189d3a242d8583ec2f562adf3807f067d561af719f9f0a"`
[INFO] running `"docker" "rm" "-f" "eb8edac73e79d40bf3189d3a242d8583ec2f562adf3807f067d561af719f9f0a"`
[INFO] [stdout] eb8edac73e79d40bf3189d3a242d8583ec2f562adf3807f067d561af719f9f0a