[INFO] fetching crate natlex_sort 0.1.0...
[INFO] testing natlex_sort-0.1.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate natlex_sort 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate natlex_sort 0.1.0
[INFO] finished tweaking crates.io crate natlex_sort 0.1.0
[INFO] tweaked toml for crates.io crate natlex_sort 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate natlex_sort 0.1.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate natlex_sort 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded natord v1.0.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1eff04771d3c22da354341d6e3cd1d2f0b5dd63f28be971c98e0b11ca1dfd06e
[INFO] running `Command { std: "docker" "start" "-a" "1eff04771d3c22da354341d6e3cd1d2f0b5dd63f28be971c98e0b11ca1dfd06e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1eff04771d3c22da354341d6e3cd1d2f0b5dd63f28be971c98e0b11ca1dfd06e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eff04771d3c22da354341d6e3cd1d2f0b5dd63f28be971c98e0b11ca1dfd06e", kill_on_drop: false }`
[INFO] [stdout] 1eff04771d3c22da354341d6e3cd1d2f0b5dd63f28be971c98e0b11ca1dfd06e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d2b7f696af2664ea7d9cb7cc02b02fdd2121d189e640d20019d6c56f4cb61ed
[INFO] running `Command { std: "docker" "start" "-a" "8d2b7f696af2664ea7d9cb7cc02b02fdd2121d189e640d20019d6c56f4cb61ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling natord v1.0.9
[INFO] [stderr]    Compiling natlex_sort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `start_i`
[INFO] [stdout]    --> src/lib.rs:122:11
[INFO] [stdout]     |
[INFO] [stdout] 122 |       let start_i = i;
[INFO] [stdout]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_j`
[INFO] [stdout]    --> src/lib.rs:123:11
[INFO] [stdout]     |
[INFO] [stdout] 123 |       let start_j = j;
[INFO] [stdout]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_i`
[INFO] [stdout]    --> src/lib.rs:220:11
[INFO] [stdout]     |
[INFO] [stdout] 220 |       let start_i = i; // Keep track for original byte access if needed
[INFO] [stdout]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_j`
[INFO] [stdout]    --> src/lib.rs:221:11
[INFO] [stdout]     |
[INFO] [stdout] 221 |       let start_j = j;
[INFO] [stdout]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "8d2b7f696af2664ea7d9cb7cc02b02fdd2121d189e640d20019d6c56f4cb61ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d2b7f696af2664ea7d9cb7cc02b02fdd2121d189e640d20019d6c56f4cb61ed", kill_on_drop: false }`
[INFO] [stdout] 8d2b7f696af2664ea7d9cb7cc02b02fdd2121d189e640d20019d6c56f4cb61ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cf656bd7bde4f73a2f83ff2c7611ba7bbb20a612763647721a82fd230ac3436
[INFO] running `Command { std: "docker" "start" "-a" "1cf656bd7bde4f73a2f83ff2c7611ba7bbb20a612763647721a82fd230ac3436", kill_on_drop: false }`
[INFO] [stderr]    Compiling natlex_sort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `start_i`
[INFO] [stdout]    --> src/lib.rs:122:11
[INFO] [stdout]     |
[INFO] [stdout] 122 |       let start_i = i;
[INFO] [stdout]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_j`
[INFO] [stdout]    --> src/lib.rs:123:11
[INFO] [stdout]     |
[INFO] [stdout] 123 |       let start_j = j;
[INFO] [stdout]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_i`
[INFO] [stdout]    --> src/lib.rs:220:11
[INFO] [stdout]     |
[INFO] [stdout] 220 |       let start_i = i; // Keep track for original byte access if needed
[INFO] [stdout]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_j`
[INFO] [stdout]    --> src/lib.rs:221:11
[INFO] [stdout]     |
[INFO] [stdout] 221 |       let start_j = j;
[INFO] [stdout]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_i`
[INFO] [stdout]    --> src/lib.rs:122:11
[INFO] [stdout]     |
[INFO] [stdout] 122 |       let start_i = i;
[INFO] [stdout]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_j`
[INFO] [stdout]    --> src/lib.rs:123:11
[INFO] [stdout]     |
[INFO] [stdout] 123 |       let start_j = j;
[INFO] [stdout]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_i`
[INFO] [stdout]    --> src/lib.rs:220:11
[INFO] [stdout]     |
[INFO] [stdout] 220 |       let start_i = i; // Keep track for original byte access if needed
[INFO] [stdout]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_j`
[INFO] [stdout]    --> src/lib.rs:221:11
[INFO] [stdout]     |
[INFO] [stdout] 221 |       let start_j = j;
[INFO] [stdout]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "1cf656bd7bde4f73a2f83ff2c7611ba7bbb20a612763647721a82fd230ac3436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cf656bd7bde4f73a2f83ff2c7611ba7bbb20a612763647721a82fd230ac3436", kill_on_drop: false }`
[INFO] [stdout] 1cf656bd7bde4f73a2f83ff2c7611ba7bbb20a612763647721a82fd230ac3436
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7648286832deb4fee057b1294056f2148a43fabbf790951ddc32ebfd64f7bfd2
[INFO] running `Command { std: "docker" "start" "-a" "7648286832deb4fee057b1294056f2148a43fabbf790951ddc32ebfd64f7bfd2", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `start_i`
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:122:11
[INFO] [stdout] running 22 tests
[INFO] [stderr]     |
[INFO] [stderr] 122 |       let start_i = i;
[INFO] [stderr]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_j`
[INFO] [stderr]    --> src/lib.rs:123:11
[INFO] [stderr]     |
[INFO] [stderr] 123 |       let start_j = j;
[INFO] [stderr]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_j`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_i`
[INFO] [stderr]    --> src/lib.rs:220:11
[INFO] [stderr]     |
[INFO] [stderr] 220 |       let start_i = i; // Keep track for original byte access if needed
[INFO] [stderr]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_j`
[INFO] [stderr]    --> src/lib.rs:221:11
[INFO] [stderr]     |
[INFO] [stderr] 221 |       let start_j = j;
[INFO] [stderr]     |           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_j`
[INFO] [stderr] 
[INFO] [stderr] warning: `natlex_sort` (lib) generated 4 warnings (run `cargo fix --lib -p natlex_sort` to apply 4 suggestions)
[INFO] [stderr] warning: `natlex_sort` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/natlex_sort-768a5475edda720d)
[INFO] [stdout] test tests::test_byte_cmp_basic_numbers ... ok
[INFO] [stdout] test tests::test_byte_cmp_same_length ... ok
[INFO] [stdout] test tests::test_byte_cmp_ignore_case ... ok
[INFO] [stdout] test tests::test_byte_cmp_numeric_prefix ... ok
[INFO] [stdout] test tests::test_cmp_empty_strings ... ok
[INFO] [stdout] test tests::test_byte_cmp_mixed_behavior ... ok
[INFO] [stdout] test tests::test_cmp_fixed_length ... ok
[INFO] [stdout] test tests::test_cmp_ignore_fixed_length ... ok
[INFO] [stdout] test tests::test_cmp_ignore_mixed_length_types ... ok
[INFO] [stdout] test tests::test_cmp_ignore_variable_length_natural ... ok
[INFO] [stdout] test tests::test_cmp_leading_zeros_natural ... ok
[INFO] [stdout] test tests::test_cmp_mixed_length_types ... ok
[INFO] [stdout] test tests::test_cmp_variable_length_natural ... ok
[INFO] [stdout] test tests::test_ordered_string_hash ... ok
[INFO] [stdout] test tests::test_ordered_string_sorting ... ok
[INFO] [stdout] test tests::test_sort_bytes_ignore_case ... ok
[INFO] [stdout] test tests::test_sort_bytes_mixed_keys ... ok
[INFO] [stdout] test tests::test_sort_bytes_simple ... ok
[INFO] [stdout] test tests::test_sort_strings_fixed_length ... ok
[INFO] [stdout] test tests::test_sort_strings_ignore_case ... ok
[INFO] [stdout] test tests::test_sort_strings_mixed_keys ... ok
[INFO] [stdout] test tests::test_sort_strings_variable_length ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests natlex_sort
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - nat_lex_sort (line 356) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7648286832deb4fee057b1294056f2148a43fabbf790951ddc32ebfd64f7bfd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7648286832deb4fee057b1294056f2148a43fabbf790951ddc32ebfd64f7bfd2", kill_on_drop: false }`
[INFO] [stdout] 7648286832deb4fee057b1294056f2148a43fabbf790951ddc32ebfd64f7bfd2