[INFO] updating cached repository hamadu/rjson
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hamadu/rjson
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hamadu/rjson" "work/ex/beta-1.38-1/sources/1.37.0/gh/hamadu/rjson"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hamadu/rjson'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hamadu/rjson" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hamadu/rjson"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hamadu/rjson'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c421c97b3f69436983149f42de70b72b56335677
[INFO] sha for GitHub repo hamadu/rjson: c421c97b3f69436983149f42de70b72b56335677
[INFO] validating manifest of hamadu/rjson 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 hamadu/rjson 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 hamadu/rjson
[INFO] finished frobbing hamadu/rjson
[INFO] frobbed toml for hamadu/rjson written to work/ex/beta-1.38-1/sources/1.37.0/gh/hamadu/rjson/Cargo.toml
[INFO] started frobbing hamadu/rjson
[INFO] finished frobbing hamadu/rjson
[INFO] frobbed toml for hamadu/rjson written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hamadu/rjson/Cargo.toml
[INFO] crate hamadu/rjson 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 hamadu/rjson 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-0/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/hamadu/rjson:/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] 631121494a558a753d3f23a4cd725e821721cae0ffc681defa2ed81d55c02119
[INFO] running `"docker" "start" "-a" "631121494a558a753d3f23a4cd725e821721cae0ffc681defa2ed81d55c02119"`
[INFO] [stderr]    Compiling ascii v0.7.1
[INFO] [stderr]    Compiling combine v2.5.2
[INFO] [stderr]    Compiling rjson v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `ParseResult`, `State`
[INFO] [stderr]  --> src/main.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 | use combine::primitives::{State, Stream, ParseResult};
[INFO] [stderr]   |                           ^^^^^          ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.64s
[INFO] running `"docker" "inspect" "631121494a558a753d3f23a4cd725e821721cae0ffc681defa2ed81d55c02119"`
[INFO] running `"docker" "rm" "-f" "631121494a558a753d3f23a4cd725e821721cae0ffc681defa2ed81d55c02119"`
[INFO] [stdout] 631121494a558a753d3f23a4cd725e821721cae0ffc681defa2ed81d55c02119
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/hamadu/rjson:/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] b15feb161e6888d44b5e707843fbba783a724050d48e422d3a113ab4d2289f1d
[INFO] running `"docker" "start" "-a" "b15feb161e6888d44b5e707843fbba783a724050d48e422d3a113ab4d2289f1d"`
[INFO] [stderr]    Compiling rjson v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `ParseResult`, `State`
[INFO] [stderr]  --> src/main.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 | use combine::primitives::{State, Stream, ParseResult};
[INFO] [stderr]   |                           ^^^^^          ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "b15feb161e6888d44b5e707843fbba783a724050d48e422d3a113ab4d2289f1d"`
[INFO] running `"docker" "rm" "-f" "b15feb161e6888d44b5e707843fbba783a724050d48e422d3a113ab4d2289f1d"`
[INFO] [stdout] b15feb161e6888d44b5e707843fbba783a724050d48e422d3a113ab4d2289f1d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/hamadu/rjson:/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] 39f3fe0964a24b906e5e683015a54585980248800b048f1d6fe124763bce121a
[INFO] running `"docker" "start" "-a" "39f3fe0964a24b906e5e683015a54585980248800b048f1d6fe124763bce121a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rjson-4a07685ff9c56dbf
[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" "39f3fe0964a24b906e5e683015a54585980248800b048f1d6fe124763bce121a"`
[INFO] running `"docker" "rm" "-f" "39f3fe0964a24b906e5e683015a54585980248800b048f1d6fe124763bce121a"`
[INFO] [stdout] 39f3fe0964a24b906e5e683015a54585980248800b048f1d6fe124763bce121a