[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 beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] a2fbf52ea25e311d14955f57ac1d7e30b4955a9dbba318938441141e26e33b0c
[INFO] running `"docker" "start" "-a" "a2fbf52ea25e311d14955f57ac1d7e30b4955a9dbba318938441141e26e33b0c"`
[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 3.07s
[INFO] running `"docker" "inspect" "a2fbf52ea25e311d14955f57ac1d7e30b4955a9dbba318938441141e26e33b0c"`
[INFO] running `"docker" "rm" "-f" "a2fbf52ea25e311d14955f57ac1d7e30b4955a9dbba318938441141e26e33b0c"`
[INFO] [stdout] a2fbf52ea25e311d14955f57ac1d7e30b4955a9dbba318938441141e26e33b0c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6569f0d4a5908d21ff6d3dd4b7a76b76ccf69b46483f850f59f86b922a78f992
[INFO] running `"docker" "start" "-a" "6569f0d4a5908d21ff6d3dd4b7a76b76ccf69b46483f850f59f86b922a78f992"`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "6569f0d4a5908d21ff6d3dd4b7a76b76ccf69b46483f850f59f86b922a78f992"`
[INFO] running `"docker" "rm" "-f" "6569f0d4a5908d21ff6d3dd4b7a76b76ccf69b46483f850f59f86b922a78f992"`
[INFO] [stdout] 6569f0d4a5908d21ff6d3dd4b7a76b76ccf69b46483f850f59f86b922a78f992
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 1cf39e8dd9a314620bea95fc8b34a8aae564bb517b211b79cc0745d062d56f1e
[INFO] running `"docker" "start" "-a" "1cf39e8dd9a314620bea95fc8b34a8aae564bb517b211b79cc0745d062d56f1e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust-3cfd694a2d12c7b9
[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" "1cf39e8dd9a314620bea95fc8b34a8aae564bb517b211b79cc0745d062d56f1e"`
[INFO] running `"docker" "rm" "-f" "1cf39e8dd9a314620bea95fc8b34a8aae564bb517b211b79cc0745d062d56f1e"`
[INFO] [stdout] 1cf39e8dd9a314620bea95fc8b34a8aae564bb517b211b79cc0745d062d56f1e