[INFO] updating cached repository staktrace/jsontest
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/staktrace/jsontest
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/staktrace/jsontest" "work/ex/beta-1.38-1/sources/1.37.0/gh/staktrace/jsontest"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/staktrace/jsontest'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/staktrace/jsontest" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/staktrace/jsontest"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/staktrace/jsontest'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ee2d4e43e1e165e0756c86d96129dbaed15a7096
[INFO] sha for GitHub repo staktrace/jsontest: ee2d4e43e1e165e0756c86d96129dbaed15a7096
[INFO] validating manifest of staktrace/jsontest 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 staktrace/jsontest 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 staktrace/jsontest
[INFO] finished frobbing staktrace/jsontest
[INFO] frobbed toml for staktrace/jsontest written to work/ex/beta-1.38-1/sources/1.37.0/gh/staktrace/jsontest/Cargo.toml
[INFO] started frobbing staktrace/jsontest
[INFO] finished frobbing staktrace/jsontest
[INFO] frobbed toml for staktrace/jsontest written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/staktrace/jsontest/Cargo.toml
[INFO] crate staktrace/jsontest 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 staktrace/jsontest 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/staktrace/jsontest:/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] 6442e285411853c3935ca5da6800f5f5a621d3175e5896893530859ee6fe5f2a
[INFO] running `"docker" "start" "-a" "6442e285411853c3935ca5da6800f5f5a621d3175e5896893530859ee6fe5f2a"`
[INFO] [stderr]    Compiling jsontest v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "6442e285411853c3935ca5da6800f5f5a621d3175e5896893530859ee6fe5f2a"`
[INFO] running `"docker" "rm" "-f" "6442e285411853c3935ca5da6800f5f5a621d3175e5896893530859ee6fe5f2a"`
[INFO] [stdout] 6442e285411853c3935ca5da6800f5f5a621d3175e5896893530859ee6fe5f2a
[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/staktrace/jsontest:/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] 6af7f5a989218658b6928bb0ec28205e86c22450bcb655b280b38a8e28f51f6d
[INFO] running `"docker" "start" "-a" "6af7f5a989218658b6928bb0ec28205e86c22450bcb655b280b38a8e28f51f6d"`
[INFO] [stderr]    Compiling jsontest v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "6af7f5a989218658b6928bb0ec28205e86c22450bcb655b280b38a8e28f51f6d"`
[INFO] running `"docker" "rm" "-f" "6af7f5a989218658b6928bb0ec28205e86c22450bcb655b280b38a8e28f51f6d"`
[INFO] [stdout] 6af7f5a989218658b6928bb0ec28205e86c22450bcb655b280b38a8e28f51f6d
[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/staktrace/jsontest:/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] cb0dcd49ab65ff55057f79459a218ee9e59844b26f70a71d06554355b34240ec
[INFO] running `"docker" "start" "-a" "cb0dcd49ab65ff55057f79459a218ee9e59844b26f70a71d06554355b34240ec"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/jsontest-c79dcec94a79db49
[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" "cb0dcd49ab65ff55057f79459a218ee9e59844b26f70a71d06554355b34240ec"`
[INFO] running `"docker" "rm" "-f" "cb0dcd49ab65ff55057f79459a218ee9e59844b26f70a71d06554355b34240ec"`
[INFO] [stdout] cb0dcd49ab65ff55057f79459a218ee9e59844b26f70a71d06554355b34240ec