[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 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/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] d9aee6f2f88a7756cabff743b1bb88c27c091dc463301d5cbe359f61e6c7c60a
[INFO] running `"docker" "start" "-a" "d9aee6f2f88a7756cabff743b1bb88c27c091dc463301d5cbe359f61e6c7c60a"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling json_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `"docker" "inspect" "d9aee6f2f88a7756cabff743b1bb88c27c091dc463301d5cbe359f61e6c7c60a"`
[INFO] running `"docker" "rm" "-f" "d9aee6f2f88a7756cabff743b1bb88c27c091dc463301d5cbe359f61e6c7c60a"`
[INFO] [stdout] d9aee6f2f88a7756cabff743b1bb88c27c091dc463301d5cbe359f61e6c7c60a
[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/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] f889fdc24492e04ac8ccbf4ccd9dffa2bd3b998c04a5717c214afa888e0c7e66
[INFO] running `"docker" "start" "-a" "f889fdc24492e04ac8ccbf4ccd9dffa2bd3b998c04a5717c214afa888e0c7e66"`
[INFO] [stderr]    Compiling json_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "f889fdc24492e04ac8ccbf4ccd9dffa2bd3b998c04a5717c214afa888e0c7e66"`
[INFO] running `"docker" "rm" "-f" "f889fdc24492e04ac8ccbf4ccd9dffa2bd3b998c04a5717c214afa888e0c7e66"`
[INFO] [stdout] f889fdc24492e04ac8ccbf4ccd9dffa2bd3b998c04a5717c214afa888e0c7e66
[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/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 244f7cb5b16089888e2d36574e22f9087b189869c502c023f6d78dc99fa8456a
[INFO] running `"docker" "start" "-a" "244f7cb5b16089888e2d36574e22f9087b189869c502c023f6d78dc99fa8456a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/json_rust-f336e7e7100b39f4
[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" "244f7cb5b16089888e2d36574e22f9087b189869c502c023f6d78dc99fa8456a"`
[INFO] running `"docker" "rm" "-f" "244f7cb5b16089888e2d36574e22f9087b189869c502c023f6d78dc99fa8456a"`
[INFO] [stdout] 244f7cb5b16089888e2d36574e22f9087b189869c502c023f6d78dc99fa8456a