[INFO] updating cached repository vishusandy/splitter [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/vishusandy/splitter [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/vishusandy/splitter" "work/ex/beta-1.37-6/sources/1.36.0/gh/vishusandy/splitter"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/vishusandy/splitter'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/vishusandy/splitter" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/vishusandy/splitter"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/vishusandy/splitter'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 152dbe5fbe5f658e1446fc91529c0fdb79fbb2d1 [INFO] sha for GitHub repo vishusandy/splitter: 152dbe5fbe5f658e1446fc91529c0fdb79fbb2d1 [INFO] validating manifest of vishusandy/splitter on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of vishusandy/splitter on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing vishusandy/splitter [INFO] finished frobbing vishusandy/splitter [INFO] frobbed toml for vishusandy/splitter written to work/ex/beta-1.37-6/sources/1.36.0/gh/vishusandy/splitter/Cargo.toml [INFO] started frobbing vishusandy/splitter [INFO] finished frobbing vishusandy/splitter [INFO] frobbed toml for vishusandy/splitter written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/vishusandy/splitter/Cargo.toml [INFO] crate vishusandy/splitter already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing vishusandy/splitter against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/vishusandy/splitter:/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-2019-07-23" "build" "--frozen"` [INFO] [stdout] d36eea9017f0ced8e6f6f5fe8bf0885110c68f34cc2006a56735c05f32c6a4fb [INFO] running `"docker" "start" "-a" "d36eea9017f0ced8e6f6f5fe8bf0885110c68f34cc2006a56735c05f32c6a4fb"` [INFO] [stderr] Compiling libc v0.2.30 [INFO] [stderr] Compiling memchr v1.0.1 [INFO] [stderr] Compiling time v0.1.38 [INFO] [stderr] Compiling aho-corasick v0.6.3 [INFO] [stderr] Compiling regex v0.2.2 [INFO] [stderr] Compiling splitter v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `BufReader` [INFO] [stderr] --> src/main.rs:9:15 [INFO] [stderr] | [INFO] [stderr] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read}; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::prelude::*` [INFO] [stderr] --> src/main.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | use std::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `StoreFalse` [INFO] [stderr] --> src/main.rs:14:59 [INFO] [stderr] | [INFO] [stderr] 14 | use argparse::{ArgumentParser, Collect, StoreTrue, Store, StoreFalse}; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `regex::Regex` [INFO] [stderr] --> src/main.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | use regex::Regex; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `BufRead` [INFO] [stderr] --> src/main.rs:9:26 [INFO] [stderr] | [INFO] [stderr] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `size` [INFO] [stderr] --> src/main.rs:54:9 [INFO] [stderr] | [INFO] [stderr] 54 | let size = f.read_to_end(&mut b); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_size` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `file_path` [INFO] [stderr] --> src/main.rs:137:9 [INFO] [stderr] | [INFO] [stderr] 137 | let file_path = path.parent().unwrap().to_str().unwrap(); [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_file_path` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:62:9 [INFO] [stderr] | [INFO] [stderr] 62 | let mut text = &contents[..]; [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: function is never used: `is_sep` [INFO] [stderr] --> src/main.rs:18:1 [INFO] [stderr] | [INFO] [stderr] 18 | fn is_sep(r: &str) -> bool { [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:178:9 [INFO] [stderr] | [INFO] [stderr] 178 | o.write(chunk.as_bytes()); [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 14.58s [INFO] running `"docker" "inspect" "d36eea9017f0ced8e6f6f5fe8bf0885110c68f34cc2006a56735c05f32c6a4fb"` [INFO] running `"docker" "rm" "-f" "d36eea9017f0ced8e6f6f5fe8bf0885110c68f34cc2006a56735c05f32c6a4fb"` [INFO] [stdout] d36eea9017f0ced8e6f6f5fe8bf0885110c68f34cc2006a56735c05f32c6a4fb [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/vishusandy/splitter:/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-2019-07-23" "test" "--frozen" "--no-run"` [INFO] [stdout] 3f86a9febe4e57121358f55a70c94c66b5a725b2ad468ae38b503c1f67f285b6 [INFO] running `"docker" "start" "-a" "3f86a9febe4e57121358f55a70c94c66b5a725b2ad468ae38b503c1f67f285b6"` [INFO] [stderr] Compiling splitter v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `BufReader` [INFO] [stderr] --> src/main.rs:9:15 [INFO] [stderr] | [INFO] [stderr] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read}; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::prelude::*` [INFO] [stderr] --> src/main.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | use std::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `StoreFalse` [INFO] [stderr] --> src/main.rs:14:59 [INFO] [stderr] | [INFO] [stderr] 14 | use argparse::{ArgumentParser, Collect, StoreTrue, Store, StoreFalse}; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `regex::Regex` [INFO] [stderr] --> src/main.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | use regex::Regex; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `BufRead` [INFO] [stderr] --> src/main.rs:9:26 [INFO] [stderr] | [INFO] [stderr] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `size` [INFO] [stderr] --> src/main.rs:54:9 [INFO] [stderr] | [INFO] [stderr] 54 | let size = f.read_to_end(&mut b); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_size` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `file_path` [INFO] [stderr] --> src/main.rs:137:9 [INFO] [stderr] | [INFO] [stderr] 137 | let file_path = path.parent().unwrap().to_str().unwrap(); [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_file_path` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:62:9 [INFO] [stderr] | [INFO] [stderr] 62 | let mut text = &contents[..]; [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: function is never used: `is_sep` [INFO] [stderr] --> src/main.rs:18:1 [INFO] [stderr] | [INFO] [stderr] 18 | fn is_sep(r: &str) -> bool { [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:178:9 [INFO] [stderr] | [INFO] [stderr] 178 | o.write(chunk.as_bytes()); [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 0.87s [INFO] running `"docker" "inspect" "3f86a9febe4e57121358f55a70c94c66b5a725b2ad468ae38b503c1f67f285b6"` [INFO] running `"docker" "rm" "-f" "3f86a9febe4e57121358f55a70c94c66b5a725b2ad468ae38b503c1f67f285b6"` [INFO] [stdout] 3f86a9febe4e57121358f55a70c94c66b5a725b2ad468ae38b503c1f67f285b6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/vishusandy/splitter:/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-2019-07-23" "test" "--frozen"` [INFO] [stdout] 6318dab5a0e628a77e6b0b6c18ec221a98a47f0394e403ce124102b47f92a17f [INFO] running `"docker" "start" "-a" "6318dab5a0e628a77e6b0b6c18ec221a98a47f0394e403ce124102b47f92a17f"` [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] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/crater/target/debug/deps/splitter-d2898ca68d4fb373 [INFO] running `"docker" "inspect" "6318dab5a0e628a77e6b0b6c18ec221a98a47f0394e403ce124102b47f92a17f"` [INFO] running `"docker" "rm" "-f" "6318dab5a0e628a77e6b0b6c18ec221a98a47f0394e403ce124102b47f92a17f"` [INFO] [stdout] 6318dab5a0e628a77e6b0b6c18ec221a98a47f0394e403ce124102b47f92a17f