[INFO] fetching crate my_rust_learn_20250812 3.2010.20772025192168...
[INFO] testing my_rust_learn_20250812-3.2010.20772025192168 against 1.91.0 for beta-1.92-2
[INFO] extracting crate my_rust_learn_20250812 3.2010.20772025192168 into /workspace/builds/worker-1-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate my_rust_learn_20250812 3.2010.20772025192168 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ferris-says v0.3.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.96
[INFO] [stderr]   Downloaded unicode-width v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 158ea3c800e307a06de57cf5f08f4efc26cee14c9381ad5834946fdbca337f59
[INFO] running `Command { std: "docker" "start" "-a" "158ea3c800e307a06de57cf5f08f4efc26cee14c9381ad5834946fdbca337f59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "158ea3c800e307a06de57cf5f08f4efc26cee14c9381ad5834946fdbca337f59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "158ea3c800e307a06de57cf5f08f4efc26cee14c9381ad5834946fdbca337f59", kill_on_drop: false }`
[INFO] [stdout] 158ea3c800e307a06de57cf5f08f4efc26cee14c9381ad5834946fdbca337f59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9990567ee777f7fce55d6473057b96d5af00009b053a7a6429f68b745fccbfde
[INFO] running `Command { std: "docker" "start" "-a" "9990567ee777f7fce55d6473057b96d5af00009b053a7a6429f68b745fccbfde", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling unicode-width v0.2.1
[INFO] [stderr]    Compiling smawk v0.3.2
[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 7.65s
[INFO] running `Command { std: "docker" "inspect" "9990567ee777f7fce55d6473057b96d5af00009b053a7a6429f68b745fccbfde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9990567ee777f7fce55d6473057b96d5af00009b053a7a6429f68b745fccbfde", kill_on_drop: false }`
[INFO] [stdout] 9990567ee777f7fce55d6473057b96d5af00009b053a7a6429f68b745fccbfde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82491acaf1ba2245fc423642e6f61be9d7b4263422ea595fc3adde570c1b851c
[INFO] running `Command { std: "docker" "start" "-a" "82491acaf1ba2245fc423642e6f61be9d7b4263422ea595fc3adde570c1b851c", kill_on_drop: false }`
[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]    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 `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "82491acaf1ba2245fc423642e6f61be9d7b4263422ea595fc3adde570c1b851c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82491acaf1ba2245fc423642e6f61be9d7b4263422ea595fc3adde570c1b851c", kill_on_drop: false }`
[INFO] [stdout] 82491acaf1ba2245fc423642e6f61be9d7b4263422ea595fc3adde570c1b851c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1fdd7e021dbf141371ee9cdd4442276ac1c723b9e60b2531ac4dd77bdf260c0a
[INFO] running `Command { std: "docker" "start" "-a" "1fdd7e021dbf141371ee9cdd4442276ac1c723b9e60b2531ac4dd77bdf260c0a", 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
[INFO] [stderr] warning: `my_rust_learn_20250812` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/my_rust_learn_20250812-f42756e6210ac44b)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[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_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_20250812-15b698cde6fcc983)
[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] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-2a8391acbd5ece64)
[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 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1fdd7e021dbf141371ee9cdd4442276ac1c723b9e60b2531ac4dd77bdf260c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fdd7e021dbf141371ee9cdd4442276ac1c723b9e60b2531ac4dd77bdf260c0a", kill_on_drop: false }`
[INFO] [stdout] 1fdd7e021dbf141371ee9cdd4442276ac1c723b9e60b2531ac4dd77bdf260c0a
