[INFO] cloning repository henryroyal/cli-fractional-knapsack [INFO] running `"git" "clone" "--bare" "git://github.com/henryroyal/cli-fractional-knapsack.git" "work/cache/sources/gh/henryroyal/cli-fractional-knapsack"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/henryroyal/cli-fractional-knapsack'... [INFO] running `"git" "clone" "work/cache/sources/gh/henryroyal/cli-fractional-knapsack" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/henryroyal/cli-fractional-knapsack"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/henryroyal/cli-fractional-knapsack'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/henryroyal/cli-fractional-knapsack" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/henryroyal/cli-fractional-knapsack"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/henryroyal/cli-fractional-knapsack'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] aad60f6e27baaad53767c4245a6d82b33105d7fd [INFO] sha for GitHub repo henryroyal/cli-fractional-knapsack: aad60f6e27baaad53767c4245a6d82b33105d7fd [INFO] validating manifest of henryroyal/cli-fractional-knapsack on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of henryroyal/cli-fractional-knapsack on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing henryroyal/cli-fractional-knapsack [INFO] finished frobbing henryroyal/cli-fractional-knapsack [INFO] frobbed toml for henryroyal/cli-fractional-knapsack written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/henryroyal/cli-fractional-knapsack/Cargo.toml [INFO] started frobbing henryroyal/cli-fractional-knapsack [INFO] finished frobbing henryroyal/cli-fractional-knapsack [INFO] frobbed toml for henryroyal/cli-fractional-knapsack written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/henryroyal/cli-fractional-knapsack/Cargo.toml [INFO] crate henryroyal/cli-fractional-knapsack already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing henryroyal/cli-fractional-knapsack against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/henryroyal/cli-fractional-knapsack:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"` [INFO] [stdout] f8c7c1d941d886476c0be92d8e3ba3a3feedd8c587e905c6283c60bbb86b2164 [INFO] running `"docker" "start" "-a" "f8c7c1d941d886476c0be92d8e3ba3a3feedd8c587e905c6283c60bbb86b2164"` [INFO] [stderr] Compiling fractional_knapsack v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `ix` [INFO] [stderr] --> src/main.rs:67:13 [INFO] [stderr] | [INFO] [stderr] 67 | let mut ix: usize = 0; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_ix` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `remaining_weight` [INFO] [stderr] --> src/main.rs:86:13 [INFO] [stderr] | [INFO] [stderr] 86 | let remaining_weight = max_weight - weight; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_remaining_weight` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `remaining_count` [INFO] [stderr] --> src/main.rs:87:13 [INFO] [stderr] | [INFO] [stderr] 87 | let remaining_count = max_count - count; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_remaining_count` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `other` [INFO] [stderr] --> src/main.rs:29:18 [INFO] [stderr] | [INFO] [stderr] 29 | fn eq(&self, other: &Item) -> bool { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_other` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:67:9 [INFO] [stderr] | [INFO] [stderr] 67 | let mut ix: usize = 0; [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 `DEBUG` should have a snake case name [INFO] [stderr] --> src/main.rs:66:9 [INFO] [stderr] | [INFO] [stderr] 66 | let DEBUG = false; [INFO] [stderr] | ^^^^^ help: convert the identifier to snake case: `debug` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:123:5 [INFO] [stderr] | [INFO] [stderr] 123 | std::io::stdin().read_line(&mut stdin); [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 return value of `std::str::::replace` that must be used [INFO] [stderr] --> src/main.rs:124:5 [INFO] [stderr] | [INFO] [stderr] 124 | stdin.replace("\n", ""); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this returns the replaced string as a new allocation, without modifying the original [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.62s [INFO] running `"docker" "inspect" "f8c7c1d941d886476c0be92d8e3ba3a3feedd8c587e905c6283c60bbb86b2164"` [INFO] running `"docker" "rm" "-f" "f8c7c1d941d886476c0be92d8e3ba3a3feedd8c587e905c6283c60bbb86b2164"` [INFO] [stdout] f8c7c1d941d886476c0be92d8e3ba3a3feedd8c587e905c6283c60bbb86b2164 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/henryroyal/cli-fractional-knapsack:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] bc2d793dce3380570bcd8a874fc6a19d20badca4678501607e79eda63a7bd96e [INFO] running `"docker" "start" "-a" "bc2d793dce3380570bcd8a874fc6a19d20badca4678501607e79eda63a7bd96e"` [INFO] [stderr] Compiling fractional_knapsack v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `ix` [INFO] [stderr] --> src/main.rs:67:13 [INFO] [stderr] | [INFO] [stderr] 67 | let mut ix: usize = 0; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_ix` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `remaining_weight` [INFO] [stderr] --> src/main.rs:86:13 [INFO] [stderr] | [INFO] [stderr] 86 | let remaining_weight = max_weight - weight; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_remaining_weight` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `remaining_count` [INFO] [stderr] --> src/main.rs:87:13 [INFO] [stderr] | [INFO] [stderr] 87 | let remaining_count = max_count - count; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_remaining_count` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `other` [INFO] [stderr] --> src/main.rs:29:18 [INFO] [stderr] | [INFO] [stderr] 29 | fn eq(&self, other: &Item) -> bool { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_other` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:67:9 [INFO] [stderr] | [INFO] [stderr] 67 | let mut ix: usize = 0; [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 `DEBUG` should have a snake case name [INFO] [stderr] --> src/main.rs:66:9 [INFO] [stderr] | [INFO] [stderr] 66 | let DEBUG = false; [INFO] [stderr] | ^^^^^ help: convert the identifier to snake case: `debug` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:123:5 [INFO] [stderr] | [INFO] [stderr] 123 | std::io::stdin().read_line(&mut stdin); [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 return value of `std::str::::replace` that must be used [INFO] [stderr] --> src/main.rs:124:5 [INFO] [stderr] | [INFO] [stderr] 124 | stdin.replace("\n", ""); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this returns the replaced string as a new allocation, without modifying the original [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.38s [INFO] running `"docker" "inspect" "bc2d793dce3380570bcd8a874fc6a19d20badca4678501607e79eda63a7bd96e"` [INFO] running `"docker" "rm" "-f" "bc2d793dce3380570bcd8a874fc6a19d20badca4678501607e79eda63a7bd96e"` [INFO] [stdout] bc2d793dce3380570bcd8a874fc6a19d20badca4678501607e79eda63a7bd96e [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/henryroyal/cli-fractional-knapsack:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"` [INFO] [stdout] 3e4497b8e41659169df9a904409436281b03257ba2d419018057c725dd1df1db [INFO] running `"docker" "start" "-a" "3e4497b8e41659169df9a904409436281b03257ba2d419018057c725dd1df1db"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.31s [INFO] [stderr] Running /opt/crater/target/debug/deps/fractional_knapsack-34a49c247439c147 [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" "3e4497b8e41659169df9a904409436281b03257ba2d419018057c725dd1df1db"` [INFO] running `"docker" "rm" "-f" "3e4497b8e41659169df9a904409436281b03257ba2d419018057c725dd1df1db"` [INFO] [stdout] 3e4497b8e41659169df9a904409436281b03257ba2d419018057c725dd1df1db