[INFO] fetching crate my_rust_learn_20250812 3.2010.20772025192168... [INFO] testing my_rust_learn_20250812-3.2010.20772025192168 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate my_rust_learn_20250812 3.2010.20772025192168 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate my_rust_learn_20250812 3.2010.20772025192168 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate my_rust_learn_20250812 3.2010.20772025192168 [INFO] tweaked toml for crates.io crate my_rust_learn_20250812 3.2010.20772025192168 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate my_rust_learn_20250812 3.2010.20772025192168 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate my_rust_learn_20250812 3.2010.20772025192168 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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 68c0307ca8bd7b5432958a510ca3e5f96afa3050a730e478100e75c6c85a4e52 [INFO] running `Command { std: "docker" "start" "-a" "68c0307ca8bd7b5432958a510ca3e5f96afa3050a730e478100e75c6c85a4e52", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "68c0307ca8bd7b5432958a510ca3e5f96afa3050a730e478100e75c6c85a4e52", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "68c0307ca8bd7b5432958a510ca3e5f96afa3050a730e478100e75c6c85a4e52", kill_on_drop: false }` [INFO] [stdout] 68c0307ca8bd7b5432958a510ca3e5f96afa3050a730e478100e75c6c85a4e52 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 812355a4174f977784aeac99995fb817e945d3dc4432ca9958a4679fc5e15a82 [INFO] running `Command { std: "docker" "start" "-a" "812355a4174f977784aeac99995fb817e945d3dc4432ca9958a4679fc5e15a82", kill_on_drop: false }` [INFO] [stderr] Compiling regex-syntax v0.8.5 [INFO] [stderr] Compiling smawk v0.3.2 [INFO] [stderr] Compiling unicode-width v0.2.1 [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Compiling unicode-linebreak v0.1.5 [INFO] [stderr] Compiling smallvec v1.15.1 [INFO] [stderr] Compiling unicode-width v0.1.14 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling textwrap v0.16.2 [INFO] [stderr] Compiling regex-automata v0.4.9 [INFO] [stderr] Compiling regex v1.11.1 [INFO] [stderr] Compiling ferris-says v0.3.2 [INFO] [stderr] Compiling my_rust_learn_20250812 v3.2010.20772025192168 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `c1` [INFO] [stdout] --> src/lib.rs:36:16 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c2` [INFO] [stdout] --> src/lib.rs:36:34 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c2` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.37s [INFO] running `Command { std: "docker" "inspect" "812355a4174f977784aeac99995fb817e945d3dc4432ca9958a4679fc5e15a82", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "812355a4174f977784aeac99995fb817e945d3dc4432ca9958a4679fc5e15a82", kill_on_drop: false }` [INFO] [stdout] 812355a4174f977784aeac99995fb817e945d3dc4432ca9958a4679fc5e15a82 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4c64c14c438f579b8f3b84d9c79425384a89115da650151cf7b952ea78720bf6 [INFO] running `Command { std: "docker" "start" "-a" "4c64c14c438f579b8f3b84d9c79425384a89115da650151cf7b952ea78720bf6", kill_on_drop: false }` [INFO] [stderr] Compiling my_rust_learn_20250812 v3.2010.20772025192168 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `c1` [INFO] [stdout] --> src/lib.rs:36:16 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c2` [INFO] [stdout] --> src/lib.rs:36:34 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c1` [INFO] [stdout] --> src/lib.rs:36:16 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c2` [INFO] [stdout] --> src/lib.rs:36:34 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c2` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s [INFO] running `Command { std: "docker" "inspect" "4c64c14c438f579b8f3b84d9c79425384a89115da650151cf7b952ea78720bf6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4c64c14c438f579b8f3b84d9c79425384a89115da650151cf7b952ea78720bf6", kill_on_drop: false }` [INFO] [stdout] 4c64c14c438f579b8f3b84d9c79425384a89115da650151cf7b952ea78720bf6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a3c6ee3a7828368046e37590be040f0cb42c34f0feb9863f426d8150b2f1fb8d [INFO] running `Command { std: "docker" "start" "-a" "a3c6ee3a7828368046e37590be040f0cb42c34f0feb9863f426d8150b2f1fb8d", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `c1` [INFO] [stderr] --> src/lib.rs:36:16 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_c1` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c2` [INFO] [stderr] --> src/lib.rs:36:34 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_c2` [INFO] [stderr] [INFO] [stderr] warning: `my_rust_learn_20250812` (lib) generated 2 warnings (run `cargo fix --lib -p my_rust_learn_20250812` to apply 2 suggestions) [INFO] [stderr] warning: `my_rust_learn_20250812` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stdout] [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/my_rust_learn_20250812-53ada559e45c3d65) [INFO] [stdout] running 4 tests [INFO] [stdout] test c12_grep_lib::tests::search_one_result_case_insensitive ... ok [INFO] [stdout] test c13_3_grep_lib_improve::tests::search_one_result ... ok [INFO] [stdout] test c13_3_grep_lib_improve::tests::search_one_result_case_insensitive ... ok [INFO] [stdout] test c12_grep_lib::tests::search_one_result ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/my_rust_learn_20250812-74a8249d1ee1f345) [INFO] [stderr] Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-94240214eeda8258) [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; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test integration_t1 ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests my_rust_learn_20250812 [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/c13_3_grep_lib_improve.rs - c13_3_grep_lib_improve::search (line 10) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] all doctests ran in 0.47s; merged doctests compilation took 0.46s [INFO] running `Command { std: "docker" "inspect" "a3c6ee3a7828368046e37590be040f0cb42c34f0feb9863f426d8150b2f1fb8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3c6ee3a7828368046e37590be040f0cb42c34f0feb9863f426d8150b2f1fb8d", kill_on_drop: false }` [INFO] [stdout] a3c6ee3a7828368046e37590be040f0cb42c34f0feb9863f426d8150b2f1fb8d