[INFO] cloning repository elbart/jf
[INFO] running `"git" "clone" "--bare" "git://github.com/elbart/jf.git" "work/cache/sources/gh/elbart/jf"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/elbart/jf'...
[INFO] running `"git" "clone" "work/cache/sources/gh/elbart/jf" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/elbart/jf"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/elbart/jf'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/elbart/jf" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/elbart/jf"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/elbart/jf'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8847d70527843afd5cdc96b56203c97736d9a0c2
[INFO] sha for GitHub repo elbart/jf: 8847d70527843afd5cdc96b56203c97736d9a0c2
[INFO] validating manifest of elbart/jf on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of elbart/jf on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing elbart/jf
[INFO] finished frobbing elbart/jf
[INFO] frobbed toml for elbart/jf written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/elbart/jf/Cargo.toml
[INFO] started frobbing elbart/jf
[INFO] finished frobbing elbart/jf
[INFO] frobbed toml for elbart/jf written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/elbart/jf/Cargo.toml
[INFO] crate elbart/jf already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing elbart/jf against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/elbart/jf:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 88e90809d1cbf86b68a1d2a45744c3d7f4b06cd778b9be929cfe8a48eff4a41c
[INFO] running `"docker" "start" "-a" "88e90809d1cbf86b68a1d2a45744c3d7f4b06cd778b9be929cfe8a48eff4a41c"`
[INFO] [stderr]    Compiling serde v1.0.37
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling atty v0.2.8
[INFO] [stderr]    Compiling encoding_rs v0.7.2
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling serde_json v1.0.13
[INFO] [stderr]    Compiling jf v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:71:37
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn read_json_to_string(reader: &mut Read) -> Result<String, std::io::Error> {
[INFO] [stderr]    |                                     ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.08s
[INFO] running `"docker" "inspect" "88e90809d1cbf86b68a1d2a45744c3d7f4b06cd778b9be929cfe8a48eff4a41c"`
[INFO] running `"docker" "rm" "-f" "88e90809d1cbf86b68a1d2a45744c3d7f4b06cd778b9be929cfe8a48eff4a41c"`
[INFO] [stdout] 88e90809d1cbf86b68a1d2a45744c3d7f4b06cd778b9be929cfe8a48eff4a41c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/elbart/jf:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0416fce383018ecaefb9588f071116bc7b39f34a63f05138dceeec7fff8eb5c2
[INFO] running `"docker" "start" "-a" "0416fce383018ecaefb9588f071116bc7b39f34a63f05138dceeec7fff8eb5c2"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling jf v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:71:37
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn read_json_to_string(reader: &mut Read) -> Result<String, std::io::Error> {
[INFO] [stderr]    |                                     ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "0416fce383018ecaefb9588f071116bc7b39f34a63f05138dceeec7fff8eb5c2"`
[INFO] running `"docker" "rm" "-f" "0416fce383018ecaefb9588f071116bc7b39f34a63f05138dceeec7fff8eb5c2"`
[INFO] [stdout] 0416fce383018ecaefb9588f071116bc7b39f34a63f05138dceeec7fff8eb5c2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/elbart/jf:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 965a43a3a23ecaeaee6f3eaacfb48d950abcf5156e67a0d2beda203c509f3937
[INFO] running `"docker" "start" "-a" "965a43a3a23ecaeaee6f3eaacfb48d950abcf5156e67a0d2beda203c509f3937"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/jf-bcd16d97b2ad36f0
[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" "965a43a3a23ecaeaee6f3eaacfb48d950abcf5156e67a0d2beda203c509f3937"`
[INFO] running `"docker" "rm" "-f" "965a43a3a23ecaeaee6f3eaacfb48d950abcf5156e67a0d2beda203c509f3937"`
[INFO] [stdout] 965a43a3a23ecaeaee6f3eaacfb48d950abcf5156e67a0d2beda203c509f3937