[INFO] updating cached repository nsmryan/Bit-Patterns [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/nsmryan/Bit-Patterns [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/nsmryan/Bit-Patterns" "work/ex/beta-1.38-1/sources/1.37.0/gh/nsmryan/Bit-Patterns"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/nsmryan/Bit-Patterns'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/nsmryan/Bit-Patterns" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nsmryan/Bit-Patterns"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nsmryan/Bit-Patterns'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e5db7b71fc4ac42ae40ec34780a34f7cb29e244a [INFO] sha for GitHub repo nsmryan/Bit-Patterns: e5db7b71fc4ac42ae40ec34780a34f7cb29e244a [INFO] validating manifest of nsmryan/Bit-Patterns 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 nsmryan/Bit-Patterns 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 nsmryan/Bit-Patterns [INFO] finished frobbing nsmryan/Bit-Patterns [INFO] frobbed toml for nsmryan/Bit-Patterns written to work/ex/beta-1.38-1/sources/1.37.0/gh/nsmryan/Bit-Patterns/Cargo.toml [INFO] started frobbing nsmryan/Bit-Patterns [INFO] finished frobbing nsmryan/Bit-Patterns [INFO] frobbed toml for nsmryan/Bit-Patterns written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nsmryan/Bit-Patterns/Cargo.toml [INFO] crate nsmryan/Bit-Patterns 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 nsmryan/Bit-Patterns against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nsmryan/Bit-Patterns:/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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 7777df9b1bbe3214a9e62f36337f9705a132e970015aa5311af56bd11c32bfa8 [INFO] running `"docker" "start" "-a" "7777df9b1bbe3214a9e62f36337f9705a132e970015aa5311af56bd11c32bfa8"` [INFO] [stderr] Compiling git_pattern v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::env::args` [INFO] [stderr] --> src/main.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::env::args; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::borrow::Cow` [INFO] [stderr] --> src/main.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::borrow::Cow; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `percent_ones` [INFO] [stderr] --> src/main.rs:71:9 [INFO] [stderr] | [INFO] [stderr] 71 | let percent_ones: f64 = bits.clone().map(|bit| if bit { 1.0 } else { 0.0 } ).sum::() / num_bits as f64; [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_percent_ones` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `bit_pattern` [INFO] [stderr] --> src/main.rs:120:21 [INFO] [stderr] | [INFO] [stderr] 120 | let bit_pattern = (index / divisor as usize) as u16; [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_bit_pattern` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:98:21 [INFO] [stderr] | [INFO] [stderr] 98 | let mut count = bit_pattern_map.get_mut(&bit_pattern).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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:65:5 [INFO] [stderr] | [INFO] [stderr] 65 | file.read_to_end(&mut byte_vec); [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 1.42s [INFO] running `"docker" "inspect" "7777df9b1bbe3214a9e62f36337f9705a132e970015aa5311af56bd11c32bfa8"` [INFO] running `"docker" "rm" "-f" "7777df9b1bbe3214a9e62f36337f9705a132e970015aa5311af56bd11c32bfa8"` [INFO] [stdout] 7777df9b1bbe3214a9e62f36337f9705a132e970015aa5311af56bd11c32bfa8 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nsmryan/Bit-Patterns:/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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] fbbe9762ec18df64a8c4e0acc0b55533ccf1871f17ed9bb843448669373d28b6 [INFO] running `"docker" "start" "-a" "fbbe9762ec18df64a8c4e0acc0b55533ccf1871f17ed9bb843448669373d28b6"` [INFO] [stderr] Compiling git_pattern v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::env::args` [INFO] [stderr] --> src/main.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::env::args; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::borrow::Cow` [INFO] [stderr] --> src/main.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::borrow::Cow; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `percent_ones` [INFO] [stderr] --> src/main.rs:71:9 [INFO] [stderr] | [INFO] [stderr] 71 | let percent_ones: f64 = bits.clone().map(|bit| if bit { 1.0 } else { 0.0 } ).sum::() / num_bits as f64; [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_percent_ones` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `bit_pattern` [INFO] [stderr] --> src/main.rs:120:21 [INFO] [stderr] | [INFO] [stderr] 120 | let bit_pattern = (index / divisor as usize) as u16; [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_bit_pattern` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:98:21 [INFO] [stderr] | [INFO] [stderr] 98 | let mut count = bit_pattern_map.get_mut(&bit_pattern).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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:65:5 [INFO] [stderr] | [INFO] [stderr] 65 | file.read_to_end(&mut byte_vec); [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 0.69s [INFO] running `"docker" "inspect" "fbbe9762ec18df64a8c4e0acc0b55533ccf1871f17ed9bb843448669373d28b6"` [INFO] running `"docker" "rm" "-f" "fbbe9762ec18df64a8c4e0acc0b55533ccf1871f17ed9bb843448669373d28b6"` [INFO] [stdout] fbbe9762ec18df64a8c4e0acc0b55533ccf1871f17ed9bb843448669373d28b6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nsmryan/Bit-Patterns:/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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] 351a3e8c71304c1edaad548dcfd7ada2798d2373be935d75508ded6d399dcca2 [INFO] running `"docker" "start" "-a" "351a3e8c71304c1edaad548dcfd7ada2798d2373be935d75508ded6d399dcca2"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/crater/target/debug/deps/git_pattern-d9e7474daa04d9cd [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" "351a3e8c71304c1edaad548dcfd7ada2798d2373be935d75508ded6d399dcca2"` [INFO] running `"docker" "rm" "-f" "351a3e8c71304c1edaad548dcfd7ada2798d2373be935d75508ded6d399dcca2"` [INFO] [stdout] 351a3e8c71304c1edaad548dcfd7ada2798d2373be935d75508ded6d399dcca2