[INFO] crate csv_challenge 0.1.0 is already in cache [INFO] extracting crate csv_challenge 0.1.0 into work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/csv_challenge/0.1.0 [INFO] extracting crate csv_challenge 0.1.0 into work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/csv_challenge/0.1.0 [INFO] validating manifest of csv_challenge-0.1.0 on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of csv_challenge-0.1.0 on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing csv_challenge-0.1.0 [INFO] finished frobbing csv_challenge-0.1.0 [INFO] frobbed toml for csv_challenge-0.1.0 written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/csv_challenge/0.1.0/Cargo.toml [INFO] started frobbing csv_challenge-0.1.0 [INFO] finished frobbing csv_challenge-0.1.0 [INFO] frobbed toml for csv_challenge-0.1.0 written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/csv_challenge/0.1.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking csv_challenge-0.1.0 against master#0f88167f89fffe321590c5148f21b7d51d44388d for pr-58948 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-6/master#0f88167f89fffe321590c5148f21b7d51d44388d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/csv_challenge/0.1.0:/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" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] c8f0dc6e617e70dac52f1ca28c4936059ca6acc93be0ac8971bc232285e0aaae [INFO] running `"docker" "start" "-a" "c8f0dc6e617e70dac52f1ca28c4936059ca6acc93be0ac8971bc232285e0aaae"` [INFO] [stderr] Checking csv_challenge v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `filename` [INFO] [stderr] --> src/core/read.rs:68:13 [INFO] [stderr] | [INFO] [stderr] 68 | let filename = PathBuf::from("./input/challenge.csv"); [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_filename` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Opt` [INFO] [stderr] --> benches/file_op_bench.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | Opt, [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Opt` [INFO] [stderr] --> tests/integration_test.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | Opt, [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> benches/file_op_bench.rs:19:5 [INFO] [stderr] | [INFO] [stderr] 19 | load_csv(filename); [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] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> benches/file_op_bench.rs:33:5 [INFO] [stderr] | [INFO] [stderr] 33 | write_csv(&modified_data, "output/test.csv"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [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 2.11s [INFO] running `"docker" "inspect" "c8f0dc6e617e70dac52f1ca28c4936059ca6acc93be0ac8971bc232285e0aaae"` [INFO] running `"docker" "rm" "-f" "c8f0dc6e617e70dac52f1ca28c4936059ca6acc93be0ac8971bc232285e0aaae"` [INFO] [stdout] c8f0dc6e617e70dac52f1ca28c4936059ca6acc93be0ac8971bc232285e0aaae