[INFO] updating cached repository arcade/lab
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/arcade/lab
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/arcade/lab" "work/ex/beta-1.38-1/sources/1.37.0/gh/arcade/lab"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/arcade/lab'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/arcade/lab" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arcade/lab"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arcade/lab'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 041dbe619a6aa07f36c3ee479a66f1a192df06f2
[INFO] sha for GitHub repo arcade/lab: 041dbe619a6aa07f36c3ee479a66f1a192df06f2
[INFO] validating manifest of arcade/lab 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 arcade/lab 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 arcade/lab
[INFO] finished frobbing arcade/lab
[INFO] frobbed toml for arcade/lab written to work/ex/beta-1.38-1/sources/1.37.0/gh/arcade/lab/Cargo.toml
[INFO] started frobbing arcade/lab
[INFO] finished frobbing arcade/lab
[INFO] frobbed toml for arcade/lab written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arcade/lab/Cargo.toml
[INFO] crate arcade/lab 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 arcade/lab 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-2/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/arcade/lab:/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] 832fd047bbaeaa30654078c72e6bca68afdcca96b3c2f60f7ca19a262c16cbf0
[INFO] running `"docker" "start" "-a" "832fd047bbaeaa30654078c72e6bca68afdcca96b3c2f60f7ca19a262c16cbf0"`
[INFO] [stderr]    Compiling lab v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "832fd047bbaeaa30654078c72e6bca68afdcca96b3c2f60f7ca19a262c16cbf0"`
[INFO] running `"docker" "rm" "-f" "832fd047bbaeaa30654078c72e6bca68afdcca96b3c2f60f7ca19a262c16cbf0"`
[INFO] [stdout] 832fd047bbaeaa30654078c72e6bca68afdcca96b3c2f60f7ca19a262c16cbf0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/arcade/lab:/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] b2449a03c3f1fa49d104f34dbf1e658636af620400b0012504fa6f4642c25248
[INFO] running `"docker" "start" "-a" "b2449a03c3f1fa49d104f34dbf1e658636af620400b0012504fa6f4642c25248"`
[INFO] [stderr]    Compiling lab v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "b2449a03c3f1fa49d104f34dbf1e658636af620400b0012504fa6f4642c25248"`
[INFO] running `"docker" "rm" "-f" "b2449a03c3f1fa49d104f34dbf1e658636af620400b0012504fa6f4642c25248"`
[INFO] [stdout] b2449a03c3f1fa49d104f34dbf1e658636af620400b0012504fa6f4642c25248
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/arcade/lab:/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] 7b11edea5cbfbe9117be22225e40c2402b5619447d3cc587248c6d394fb937a7
[INFO] running `"docker" "start" "-a" "7b11edea5cbfbe9117be22225e40c2402b5619447d3cc587248c6d394fb937a7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lab-4b06eef097b74c15
[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" "7b11edea5cbfbe9117be22225e40c2402b5619447d3cc587248c6d394fb937a7"`
[INFO] running `"docker" "rm" "-f" "7b11edea5cbfbe9117be22225e40c2402b5619447d3cc587248c6d394fb937a7"`
[INFO] [stdout] 7b11edea5cbfbe9117be22225e40c2402b5619447d3cc587248c6d394fb937a7