[INFO] updating cached repository adammartinez271828/rust-csv-reader
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/adammartinez271828/rust-csv-reader
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/adammartinez271828/rust-csv-reader" "work/ex/beta-1.38-1/sources/1.37.0/gh/adammartinez271828/rust-csv-reader"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/adammartinez271828/rust-csv-reader'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/adammartinez271828/rust-csv-reader" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/adammartinez271828/rust-csv-reader"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/adammartinez271828/rust-csv-reader'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 606c82945f9c97e0a97540618c09dd90267c34df
[INFO] sha for GitHub repo adammartinez271828/rust-csv-reader: 606c82945f9c97e0a97540618c09dd90267c34df
[INFO] validating manifest of adammartinez271828/rust-csv-reader 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 adammartinez271828/rust-csv-reader 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 adammartinez271828/rust-csv-reader
[INFO] finished frobbing adammartinez271828/rust-csv-reader
[INFO] frobbed toml for adammartinez271828/rust-csv-reader written to work/ex/beta-1.38-1/sources/1.37.0/gh/adammartinez271828/rust-csv-reader/Cargo.toml
[INFO] started frobbing adammartinez271828/rust-csv-reader
[INFO] finished frobbing adammartinez271828/rust-csv-reader
[INFO] frobbed toml for adammartinez271828/rust-csv-reader written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/adammartinez271828/rust-csv-reader/Cargo.toml
[INFO] crate adammartinez271828/rust-csv-reader 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 adammartinez271828/rust-csv-reader 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/adammartinez271828/rust-csv-reader:/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] 0bc250c433f2de24553ca9600dcabaa1e4e36a5775bbddf6de71c9c49dde3bd1
[INFO] running `"docker" "start" "-a" "0bc250c433f2de24553ca9600dcabaa1e4e36a5775bbddf6de71c9c49dde3bd1"`
[INFO] [stderr]    Compiling csv_reader v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `AbaloneResult`
[INFO] [stderr]  --> src/main.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct AbaloneResult {}
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     reader.read_line(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "0bc250c433f2de24553ca9600dcabaa1e4e36a5775bbddf6de71c9c49dde3bd1"`
[INFO] running `"docker" "rm" "-f" "0bc250c433f2de24553ca9600dcabaa1e4e36a5775bbddf6de71c9c49dde3bd1"`
[INFO] [stdout] 0bc250c433f2de24553ca9600dcabaa1e4e36a5775bbddf6de71c9c49dde3bd1
[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/adammartinez271828/rust-csv-reader:/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] 686a826e75920142a1a40c297217152fca2d1218fafb747c14757b4000c7d48a
[INFO] running `"docker" "start" "-a" "686a826e75920142a1a40c297217152fca2d1218fafb747c14757b4000c7d48a"`
[INFO] [stderr]    Compiling csv_reader v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `AbaloneResult`
[INFO] [stderr]  --> src/main.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct AbaloneResult {}
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     reader.read_line(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "686a826e75920142a1a40c297217152fca2d1218fafb747c14757b4000c7d48a"`
[INFO] running `"docker" "rm" "-f" "686a826e75920142a1a40c297217152fca2d1218fafb747c14757b4000c7d48a"`
[INFO] [stdout] 686a826e75920142a1a40c297217152fca2d1218fafb747c14757b4000c7d48a
[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/adammartinez271828/rust-csv-reader:/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] 85138e30a2f31a9b36ef8f7b0453664d7d7da24d304f7bc44a2fb015bbbbaed7
[INFO] running `"docker" "start" "-a" "85138e30a2f31a9b36ef8f7b0453664d7d7da24d304f7bc44a2fb015bbbbaed7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/csv_reader-8796f81c958c3598
[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" "85138e30a2f31a9b36ef8f7b0453664d7d7da24d304f7bc44a2fb015bbbbaed7"`
[INFO] running `"docker" "rm" "-f" "85138e30a2f31a9b36ef8f7b0453664d7d7da24d304f7bc44a2fb015bbbbaed7"`
[INFO] [stdout] 85138e30a2f31a9b36ef8f7b0453664d7d7da24d304f7bc44a2fb015bbbbaed7