[INFO] updating cached repository heycam/json-describe
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/heycam/json-describe
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/heycam/json-describe" "work/ex/beta-1.38-1/sources/1.37.0/gh/heycam/json-describe"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/heycam/json-describe'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/heycam/json-describe" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/heycam/json-describe"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/heycam/json-describe'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ee0e70e85a23f3223f65fb8740ec411b096e9128
[INFO] sha for GitHub repo heycam/json-describe: ee0e70e85a23f3223f65fb8740ec411b096e9128
[INFO] validating manifest of heycam/json-describe 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 heycam/json-describe 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 heycam/json-describe
[INFO] finished frobbing heycam/json-describe
[INFO] frobbed toml for heycam/json-describe written to work/ex/beta-1.38-1/sources/1.37.0/gh/heycam/json-describe/Cargo.toml
[INFO] started frobbing heycam/json-describe
[INFO] finished frobbing heycam/json-describe
[INFO] frobbed toml for heycam/json-describe written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/heycam/json-describe/Cargo.toml
[INFO] crate heycam/json-describe 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 heycam/json-describe 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-3/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/heycam/json-describe:/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] c5849e4e57e6e95a5b129c9c469d1a3a195971113a4dfb3fb27ecf5695c4cb94
[INFO] running `"docker" "start" "-a" "c5849e4e57e6e95a5b129c9c469d1a3a195971113a4dfb3fb27ecf5695c4cb94"`
[INFO] [stderr]    Compiling json-tools v1.0.1 (https://github.com/heycam/json-tools?branch=num-str-fixes#df37dc8d)
[INFO] [stderr]    Compiling json-describe v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.43s
[INFO] running `"docker" "inspect" "c5849e4e57e6e95a5b129c9c469d1a3a195971113a4dfb3fb27ecf5695c4cb94"`
[INFO] running `"docker" "rm" "-f" "c5849e4e57e6e95a5b129c9c469d1a3a195971113a4dfb3fb27ecf5695c4cb94"`
[INFO] [stdout] c5849e4e57e6e95a5b129c9c469d1a3a195971113a4dfb3fb27ecf5695c4cb94
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/heycam/json-describe:/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] 043833e301cec46630040bb58923ee3f08e1890dc5a127bf7442f5b372fa22da
[INFO] running `"docker" "start" "-a" "043833e301cec46630040bb58923ee3f08e1890dc5a127bf7442f5b372fa22da"`
[INFO] [stderr]    Compiling json-describe v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `"docker" "inspect" "043833e301cec46630040bb58923ee3f08e1890dc5a127bf7442f5b372fa22da"`
[INFO] running `"docker" "rm" "-f" "043833e301cec46630040bb58923ee3f08e1890dc5a127bf7442f5b372fa22da"`
[INFO] [stdout] 043833e301cec46630040bb58923ee3f08e1890dc5a127bf7442f5b372fa22da
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/heycam/json-describe:/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] 3a5153b288f3771cc1d062fe1e93c9dbbd3660efafe6268f62401e05260ce78f
[INFO] running `"docker" "start" "-a" "3a5153b288f3771cc1d062fe1e93c9dbbd3660efafe6268f62401e05260ce78f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/json_describe-af37533d0d9622fe
[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" "3a5153b288f3771cc1d062fe1e93c9dbbd3660efafe6268f62401e05260ce78f"`
[INFO] running `"docker" "rm" "-f" "3a5153b288f3771cc1d062fe1e93c9dbbd3660efafe6268f62401e05260ce78f"`
[INFO] [stdout] 3a5153b288f3771cc1d062fe1e93c9dbbd3660efafe6268f62401e05260ce78f