[INFO] updating cached repository tsathishkumar/csvdiff-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tsathishkumar/csvdiff-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tsathishkumar/csvdiff-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/tsathishkumar/csvdiff-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tsathishkumar/csvdiff-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tsathishkumar/csvdiff-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tsathishkumar/csvdiff-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tsathishkumar/csvdiff-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e3a28ebaeaae610c98dcb55ca0065d725b5ad62c
[INFO] sha for GitHub repo tsathishkumar/csvdiff-rs: e3a28ebaeaae610c98dcb55ca0065d725b5ad62c
[INFO] validating manifest of tsathishkumar/csvdiff-rs 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 tsathishkumar/csvdiff-rs 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 tsathishkumar/csvdiff-rs
[INFO] finished frobbing tsathishkumar/csvdiff-rs
[INFO] frobbed toml for tsathishkumar/csvdiff-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/tsathishkumar/csvdiff-rs/Cargo.toml
[INFO] started frobbing tsathishkumar/csvdiff-rs
[INFO] finished frobbing tsathishkumar/csvdiff-rs
[INFO] frobbed toml for tsathishkumar/csvdiff-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tsathishkumar/csvdiff-rs/Cargo.toml
[INFO] crate tsathishkumar/csvdiff-rs 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 tsathishkumar/csvdiff-rs 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-1/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/tsathishkumar/csvdiff-rs:/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] 36d50b06d649b3b24c96b6a836ca6d93b220a3727cf9a427d8216431bca45ec7
[INFO] running `"docker" "start" "-a" "36d50b06d649b3b24c96b6a836ca6d93b220a3727cf9a427d8216431bca45ec7"`
[INFO] [stderr]    Compiling serde v1.0.48
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling chan v0.1.21
[INFO] [stderr]    Compiling twox-hash v1.1.0
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling csv-core v0.1.4
[INFO] [stderr]    Compiling csv v1.0.0-beta.5
[INFO] [stderr]    Compiling csvdiff-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cmp::Ordering`
[INFO] [stderr]  --> src/digest.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cmp::Ordering;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let mut reader1 = csv::Reader::from_reader(File::open(first_file).unwrap());
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let mut reader2 = csv::Reader::from_reader(File::open(second_file).unwrap());
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.21s
[INFO] running `"docker" "inspect" "36d50b06d649b3b24c96b6a836ca6d93b220a3727cf9a427d8216431bca45ec7"`
[INFO] running `"docker" "rm" "-f" "36d50b06d649b3b24c96b6a836ca6d93b220a3727cf9a427d8216431bca45ec7"`
[INFO] [stdout] 36d50b06d649b3b24c96b6a836ca6d93b220a3727cf9a427d8216431bca45ec7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/tsathishkumar/csvdiff-rs:/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] 26ca9796cf0cbe3cccfab06f046d449e49f26df27baae79a777a1a5cc4323b9b
[INFO] running `"docker" "start" "-a" "26ca9796cf0cbe3cccfab06f046d449e49f26df27baae79a777a1a5cc4323b9b"`
[INFO] [stderr]    Compiling csvdiff-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cmp::Ordering`
[INFO] [stderr]  --> src/digest.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cmp::Ordering;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let mut reader1 = csv::Reader::from_reader(File::open(first_file).unwrap());
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let mut reader2 = csv::Reader::from_reader(File::open(second_file).unwrap());
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "26ca9796cf0cbe3cccfab06f046d449e49f26df27baae79a777a1a5cc4323b9b"`
[INFO] running `"docker" "rm" "-f" "26ca9796cf0cbe3cccfab06f046d449e49f26df27baae79a777a1a5cc4323b9b"`
[INFO] [stdout] 26ca9796cf0cbe3cccfab06f046d449e49f26df27baae79a777a1a5cc4323b9b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/tsathishkumar/csvdiff-rs:/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] b738f335ef644ea90d7791a5cc547c1288bccccdd4c71a6975450b6c1d9f31a7
[INFO] running `"docker" "start" "-a" "b738f335ef644ea90d7791a5cc547c1288bccccdd4c71a6975450b6c1d9f31a7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/csvdiff_rs-5568e48c7458b252
[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" "b738f335ef644ea90d7791a5cc547c1288bccccdd4c71a6975450b6c1d9f31a7"`
[INFO] running `"docker" "rm" "-f" "b738f335ef644ea90d7791a5cc547c1288bccccdd4c71a6975450b6c1d9f31a7"`
[INFO] [stdout] b738f335ef644ea90d7791a5cc547c1288bccccdd4c71a6975450b6c1d9f31a7