[INFO] updating cached repository wmww/rust_json_parser
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wmww/rust_json_parser
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wmww/rust_json_parser" "work/ex/beta-1.38-1/sources/1.37.0/gh/wmww/rust_json_parser"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/wmww/rust_json_parser'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wmww/rust_json_parser" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmww/rust_json_parser"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmww/rust_json_parser'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c892f3345f10abd9dd9426e42976cead9ef96fe5
[INFO] sha for GitHub repo wmww/rust_json_parser: c892f3345f10abd9dd9426e42976cead9ef96fe5
[INFO] validating manifest of wmww/rust_json_parser 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 wmww/rust_json_parser 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 wmww/rust_json_parser
[INFO] finished frobbing wmww/rust_json_parser
[INFO] frobbed toml for wmww/rust_json_parser written to work/ex/beta-1.38-1/sources/1.37.0/gh/wmww/rust_json_parser/Cargo.toml
[INFO] started frobbing wmww/rust_json_parser
[INFO] finished frobbing wmww/rust_json_parser
[INFO] frobbed toml for wmww/rust_json_parser written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmww/rust_json_parser/Cargo.toml
[INFO] crate wmww/rust_json_parser 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 wmww/rust_json_parser 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/wmww/rust_json_parser:/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] ecf46c39248909064eb90769f6e4f8d65fea3fb910a5d139cd2b1a405e69ce83
[INFO] running `"docker" "start" "-a" "ecf46c39248909064eb90769f6e4f8d65fea3fb910a5d139cd2b1a405e69ce83"`
[INFO] [stderr]    Compiling json_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `"docker" "inspect" "ecf46c39248909064eb90769f6e4f8d65fea3fb910a5d139cd2b1a405e69ce83"`
[INFO] running `"docker" "rm" "-f" "ecf46c39248909064eb90769f6e4f8d65fea3fb910a5d139cd2b1a405e69ce83"`
[INFO] [stdout] ecf46c39248909064eb90769f6e4f8d65fea3fb910a5d139cd2b1a405e69ce83
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/wmww/rust_json_parser:/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] 0cb04c88ec1477cbd518e052928e61aae8bef19dc4ccfcf27a269815fe66e517
[INFO] running `"docker" "start" "-a" "0cb04c88ec1477cbd518e052928e61aae8bef19dc4ccfcf27a269815fe66e517"`
[INFO] [stderr]    Compiling json_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "0cb04c88ec1477cbd518e052928e61aae8bef19dc4ccfcf27a269815fe66e517"`
[INFO] running `"docker" "rm" "-f" "0cb04c88ec1477cbd518e052928e61aae8bef19dc4ccfcf27a269815fe66e517"`
[INFO] [stdout] 0cb04c88ec1477cbd518e052928e61aae8bef19dc4ccfcf27a269815fe66e517
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/wmww/rust_json_parser:/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] efd75d04a3166dac03404d3d03075cc5b23f87780016d468b2416962d7490c10
[INFO] running `"docker" "start" "-a" "efd75d04a3166dac03404d3d03075cc5b23f87780016d468b2416962d7490c10"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/json_rust-84bbd116f2dcadb3
[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" "efd75d04a3166dac03404d3d03075cc5b23f87780016d468b2416962d7490c10"`
[INFO] running `"docker" "rm" "-f" "efd75d04a3166dac03404d3d03075cc5b23f87780016d468b2416962d7490c10"`
[INFO] [stdout] efd75d04a3166dac03404d3d03075cc5b23f87780016d468b2416962d7490c10