[INFO] updating cached repository soenkehahn/rust-playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/soenkehahn/rust-playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/soenkehahn/rust-playground" "work/ex/beta-1.37-6/sources/1.36.0/gh/soenkehahn/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/soenkehahn/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/soenkehahn/rust-playground" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/soenkehahn/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/soenkehahn/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 41d472a9b04cdb02312edfa8b05bd2d9f85789fb
[INFO] sha for GitHub repo soenkehahn/rust-playground: 41d472a9b04cdb02312edfa8b05bd2d9f85789fb
[INFO] validating manifest of soenkehahn/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 soenkehahn/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 soenkehahn/rust-playground
[INFO] finished frobbing soenkehahn/rust-playground
[INFO] frobbed toml for soenkehahn/rust-playground written to work/ex/beta-1.37-6/sources/1.36.0/gh/soenkehahn/rust-playground/Cargo.toml
[INFO] started frobbing soenkehahn/rust-playground
[INFO] finished frobbing soenkehahn/rust-playground
[INFO] frobbed toml for soenkehahn/rust-playground written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/soenkehahn/rust-playground/Cargo.toml
[INFO] crate soenkehahn/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 soenkehahn/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-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/soenkehahn/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] 7db2c46c50d690112c7aea68857fefafa5d85da93afaa29480ec760999aed275
[INFO] running `"docker" "start" "-a" "7db2c46c50d690112c7aea68857fefafa5d85da93afaa29480ec760999aed275"`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.86s
[INFO] running `"docker" "inspect" "7db2c46c50d690112c7aea68857fefafa5d85da93afaa29480ec760999aed275"`
[INFO] running `"docker" "rm" "-f" "7db2c46c50d690112c7aea68857fefafa5d85da93afaa29480ec760999aed275"`
[INFO] [stdout] 7db2c46c50d690112c7aea68857fefafa5d85da93afaa29480ec760999aed275
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/soenkehahn/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] b536b811f5daa3a52d0f37a2be1ce0d3aa9c0ea9130ebc1f2cbdf1d8f51c59df
[INFO] running `"docker" "start" "-a" "b536b811f5daa3a52d0f37a2be1ce0d3aa9c0ea9130ebc1f2cbdf1d8f51c59df"`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `"docker" "inspect" "b536b811f5daa3a52d0f37a2be1ce0d3aa9c0ea9130ebc1f2cbdf1d8f51c59df"`
[INFO] running `"docker" "rm" "-f" "b536b811f5daa3a52d0f37a2be1ce0d3aa9c0ea9130ebc1f2cbdf1d8f51c59df"`
[INFO] [stdout] b536b811f5daa3a52d0f37a2be1ce0d3aa9c0ea9130ebc1f2cbdf1d8f51c59df
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/soenkehahn/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] 1e550d2c2fb00c7802851fd50b4eebf0f635f6a7ba5929e228433226ce16ae95
[INFO] running `"docker" "start" "-a" "1e550d2c2fb00c7802851fd50b4eebf0f635f6a7ba5929e228433226ce16ae95"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/playground-c35d062be61b86b7
[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" "1e550d2c2fb00c7802851fd50b4eebf0f635f6a7ba5929e228433226ce16ae95"`
[INFO] running `"docker" "rm" "-f" "1e550d2c2fb00c7802851fd50b4eebf0f635f6a7ba5929e228433226ce16ae95"`
[INFO] [stdout] 1e550d2c2fb00c7802851fd50b4eebf0f635f6a7ba5929e228433226ce16ae95