[INFO] updating cached repository divyekapoor/csv_to_json
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/divyekapoor/csv_to_json
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/divyekapoor/csv_to_json" "work/ex/beta-1.38-1/sources/1.37.0/gh/divyekapoor/csv_to_json"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/divyekapoor/csv_to_json'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/divyekapoor/csv_to_json" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/divyekapoor/csv_to_json"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/divyekapoor/csv_to_json'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d101c5e81f740383a3148d4fe783acdb93e65151
[INFO] sha for GitHub repo divyekapoor/csv_to_json: d101c5e81f740383a3148d4fe783acdb93e65151
[INFO] validating manifest of divyekapoor/csv_to_json 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 divyekapoor/csv_to_json 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 divyekapoor/csv_to_json
[INFO] finished frobbing divyekapoor/csv_to_json
[INFO] frobbed toml for divyekapoor/csv_to_json written to work/ex/beta-1.38-1/sources/1.37.0/gh/divyekapoor/csv_to_json/Cargo.toml
[INFO] started frobbing divyekapoor/csv_to_json
[INFO] finished frobbing divyekapoor/csv_to_json
[INFO] frobbed toml for divyekapoor/csv_to_json written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/divyekapoor/csv_to_json/Cargo.toml
[INFO] crate divyekapoor/csv_to_json 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/divyekapoor/csv_to_json/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 divyekapoor/csv_to_json 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-5/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/divyekapoor/csv_to_json:/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] b20fa48f89b24349797e22834c49ebec2af9925bec55de5b3df36883cb0a99e7
[INFO] running `"docker" "start" "-a" "b20fa48f89b24349797e22834c49ebec2af9925bec55de5b3df36883cb0a99e7"`
[INFO] [stderr]    Compiling csv v0.14.7
[INFO] [stderr]    Compiling csv_to_json v1.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:14:65
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn arg_or_stdin(filename_or_none: Option<String>) -> Result<Box<Read>, 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] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:18:32
[INFO] [stderr]    |
[INFO] [stderr] 18 |       Ok(Box::new(file) as Box<Read>)
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:21:39
[INFO] [stderr]    |
[INFO] [stderr] 21 |       Ok(Box::new(io::stdin()) as Box<Read>)
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.91s
[INFO] running `"docker" "inspect" "b20fa48f89b24349797e22834c49ebec2af9925bec55de5b3df36883cb0a99e7"`
[INFO] running `"docker" "rm" "-f" "b20fa48f89b24349797e22834c49ebec2af9925bec55de5b3df36883cb0a99e7"`
[INFO] [stdout] b20fa48f89b24349797e22834c49ebec2af9925bec55de5b3df36883cb0a99e7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/divyekapoor/csv_to_json:/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] 0b56e5a446a56d5a2d033ccfb505714cf3825ece5daf90c7e73b46471cbc22d4
[INFO] running `"docker" "start" "-a" "0b56e5a446a56d5a2d033ccfb505714cf3825ece5daf90c7e73b46471cbc22d4"`
[INFO] [stderr]    Compiling csv_to_json v1.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:14:65
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn arg_or_stdin(filename_or_none: Option<String>) -> Result<Box<Read>, 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] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:18:32
[INFO] [stderr]    |
[INFO] [stderr] 18 |       Ok(Box::new(file) as Box<Read>)
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:21:39
[INFO] [stderr]    |
[INFO] [stderr] 21 |       Ok(Box::new(io::stdin()) as Box<Read>)
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "0b56e5a446a56d5a2d033ccfb505714cf3825ece5daf90c7e73b46471cbc22d4"`
[INFO] running `"docker" "rm" "-f" "0b56e5a446a56d5a2d033ccfb505714cf3825ece5daf90c7e73b46471cbc22d4"`
[INFO] [stdout] 0b56e5a446a56d5a2d033ccfb505714cf3825ece5daf90c7e73b46471cbc22d4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/divyekapoor/csv_to_json:/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] e389e305891aa430ea1ef9c726bb9204e71180c8b962b37a51670fa0fc78debf
[INFO] running `"docker" "start" "-a" "e389e305891aa430ea1ef9c726bb9204e71180c8b962b37a51670fa0fc78debf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/csv_to_json-35925481a30ceb6f
[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" "e389e305891aa430ea1ef9c726bb9204e71180c8b962b37a51670fa0fc78debf"`
[INFO] running `"docker" "rm" "-f" "e389e305891aa430ea1ef9c726bb9204e71180c8b962b37a51670fa0fc78debf"`
[INFO] [stdout] e389e305891aa430ea1ef9c726bb9204e71180c8b962b37a51670fa0fc78debf