[INFO] cloning repository zolkko/rust-katas [INFO] running `"git" "clone" "--bare" "git://github.com/zolkko/rust-katas.git" "work/cache/sources/gh/zolkko/rust-katas"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/zolkko/rust-katas'... [INFO] running `"git" "clone" "work/cache/sources/gh/zolkko/rust-katas" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/zolkko/rust-katas"` [INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/zolkko/rust-katas'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/zolkko/rust-katas" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/zolkko/rust-katas"` [INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/zolkko/rust-katas'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 19d81f9122deee2ecc15d139475374b6f940d79c [INFO] sha for GitHub repo zolkko/rust-katas: 19d81f9122deee2ecc15d139475374b6f940d79c [INFO] validating manifest of zolkko/rust-katas on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of zolkko/rust-katas on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing zolkko/rust-katas [INFO] finished frobbing zolkko/rust-katas [INFO] frobbed toml for zolkko/rust-katas written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/zolkko/rust-katas/Cargo.toml [INFO] started frobbing zolkko/rust-katas [INFO] finished frobbing zolkko/rust-katas [INFO] frobbed toml for zolkko/rust-katas written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/zolkko/rust-katas/Cargo.toml [INFO] crate zolkko/rust-katas already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking zolkko/rust-katas against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-4/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/zolkko/rust-katas:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] e356d7445dd504c26e4a9f02d38414e64009d1f9d7ee413c3b55b27bc3abb8ca [INFO] running `"docker" "start" "-a" "e356d7445dd504c26e4a9f02d38414e64009d1f9d7ee413c3b55b27bc3abb8ca"` [INFO] [stderr] Compiling rust-katas v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: struct is never constructed: `ToplistWithoutFilter` [INFO] [stderr] --> src/lib.rs:34:1 [INFO] [stderr] | [INFO] [stderr] 34 | struct ToplistWithoutFilter { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `ToplistWithFilter` [INFO] [stderr] --> src/lib.rs:40:1 [INFO] [stderr] | [INFO] [stderr] 40 | struct ToplistWithFilter { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/insertion_sort.rs:13:15 [INFO] [stderr] | [INFO] [stderr] 13 | while index >= 0 && array[index] > array[index + 1] { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_comparisons)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::stdin` [INFO] [stderr] --> src/merge_arrays.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::io::stdin; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `ToplistWithoutFilter` [INFO] [stderr] --> src/lib.rs:34:1 [INFO] [stderr] | [INFO] [stderr] 34 | struct ToplistWithoutFilter { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `ToplistWithFilter` [INFO] [stderr] --> src/lib.rs:40:1 [INFO] [stderr] | [INFO] [stderr] 40 | struct ToplistWithFilter { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/insertion_sort.rs:13:15 [INFO] [stderr] | [INFO] [stderr] 13 | while index >= 0 && array[index] > array[index + 1] { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_comparisons)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'core::str::::trim_right': superseded by `trim_end` [INFO] [stderr] --> src/read_ints.rs:5:22 [INFO] [stderr] | [INFO] [stderr] 5 | let input = line.trim_right(); [INFO] [stderr] | ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `arrays` [INFO] [stderr] --> src/merge_arrays.rs:4:17 [INFO] [stderr] | [INFO] [stderr] 4 | fn merge_arrays(arrays: &[&[i32]]) -> Vec { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_arrays` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `merge_arrays` [INFO] [stderr] --> src/merge_arrays.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | fn merge_arrays(arrays: &[&[i32]]) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::stdin` [INFO] [stderr] --> src/merge_arrays.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::io::stdin; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `size` is never read [INFO] [stderr] --> src/print_exec.rs:32:13 [INFO] [stderr] | [INFO] [stderr] 32 | let mut size = 0usize; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `arrays` [INFO] [stderr] --> src/merge_arrays.rs:4:17 [INFO] [stderr] | [INFO] [stderr] 4 | fn merge_arrays(arrays: &[&[i32]]) -> Vec { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_arrays` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `merge_arrays` [INFO] [stderr] --> src/merge_arrays.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | fn merge_arrays(arrays: &[&[i32]]) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/print_exec.rs:31:9 [INFO] [stderr] | [INFO] [stderr] 31 | let mut read_buf: &mut [u8] = &mut [0u8; 1024]; [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] warning: use of deprecated item 'core::str::::trim_right': superseded by `trim_end` [INFO] [stderr] --> src/read_ints.rs:5:22 [INFO] [stderr] | [INFO] [stderr] 5 | let input = line.trim_right(); [INFO] [stderr] | ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `size` is never read [INFO] [stderr] --> src/print_exec.rs:32:13 [INFO] [stderr] | [INFO] [stderr] 32 | let mut size = 0usize; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/print_exec.rs:31:9 [INFO] [stderr] | [INFO] [stderr] 31 | let mut read_buf: &mut [u8] = &mut [0u8; 1024]; [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] Finished dev [unoptimized + debuginfo] target(s) in 2.28s [INFO] running `"docker" "inspect" "e356d7445dd504c26e4a9f02d38414e64009d1f9d7ee413c3b55b27bc3abb8ca"` [INFO] running `"docker" "rm" "-f" "e356d7445dd504c26e4a9f02d38414e64009d1f9d7ee413c3b55b27bc3abb8ca"` [INFO] [stdout] e356d7445dd504c26e4a9f02d38414e64009d1f9d7ee413c3b55b27bc3abb8ca