[INFO] fetching crate tree_gen 0.1.3...
[INFO] testing tree_gen-0.1.3 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate tree_gen 0.1.3 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tree_gen 0.1.3
[INFO] finished tweaking crates.io crate tree_gen 0.1.3
[INFO] tweaked toml for crates.io crate tree_gen 0.1.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tree_gen 0.1.3 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 tree_gen 0.1.3 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3a0d1342b0b766dda20ce09d0466188a2cffc0e97f78aab1fab624f8d2706531
[INFO] running `Command { std: "docker" "start" "-a" "3a0d1342b0b766dda20ce09d0466188a2cffc0e97f78aab1fab624f8d2706531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a0d1342b0b766dda20ce09d0466188a2cffc0e97f78aab1fab624f8d2706531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a0d1342b0b766dda20ce09d0466188a2cffc0e97f78aab1fab624f8d2706531", kill_on_drop: false }`
[INFO] [stdout] 3a0d1342b0b766dda20ce09d0466188a2cffc0e97f78aab1fab624f8d2706531
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9fc98faed9c28fe6594ff1ed59f219b10ab0357687690059d03f2aed378d7f66
[INFO] running `Command { std: "docker" "start" "-a" "9fc98faed9c28fe6594ff1ed59f219b10ab0357687690059d03f2aed378d7f66", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]    Compiling anstyle v1.0.9
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling regex-automata v0.4.8
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling colored v2.1.0
[INFO] [stderr]    Compiling anstream v0.6.17
[INFO] [stderr]    Compiling clap_builder v4.5.20
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.86
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.214
[INFO] [stderr]    Compiling clap v4.5.20
[INFO] [stderr]    Compiling tree_gen v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `close_line`
[INFO] [stdout]   --> src/lib/generate.rs:49:45
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let (branch, last_branch, continuation, close_line) = match branch_style {
[INFO] [stdout]    |                                             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_close_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.78s
[INFO] running `Command { std: "docker" "inspect" "9fc98faed9c28fe6594ff1ed59f219b10ab0357687690059d03f2aed378d7f66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fc98faed9c28fe6594ff1ed59f219b10ab0357687690059d03f2aed378d7f66", kill_on_drop: false }`
[INFO] [stdout] 9fc98faed9c28fe6594ff1ed59f219b10ab0357687690059d03f2aed378d7f66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 015d4b03f6c5a782474c2dd83d2cc74126511550c5107bf3511f2159967db2e5
[INFO] running `Command { std: "docker" "start" "-a" "015d4b03f6c5a782474c2dd83d2cc74126511550c5107bf3511f2159967db2e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree_gen v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `close_line`
[INFO] [stdout]   --> src/lib/generate.rs:49:45
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let (branch, last_branch, continuation, close_line) = match branch_style {
[INFO] [stdout]    |                                             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_close_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "015d4b03f6c5a782474c2dd83d2cc74126511550c5107bf3511f2159967db2e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "015d4b03f6c5a782474c2dd83d2cc74126511550c5107bf3511f2159967db2e5", kill_on_drop: false }`
[INFO] [stdout] 015d4b03f6c5a782474c2dd83d2cc74126511550c5107bf3511f2159967db2e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a782d92651aa7d8e9cd8bbae09df96d41fb093fcc78af59bbb0682bff6bbee15
[INFO] running `Command { std: "docker" "start" "-a" "a782d92651aa7d8e9cd8bbae09df96d41fb093fcc78af59bbb0682bff6bbee15", kill_on_drop: false }`
[INFO] [stderr] warning: found module declaration for lib.rs
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | mod lib;
[INFO] [stderr]   | ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: lib.rs is the root of this crate's library target
[INFO] [stderr]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stderr]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `close_line`
[INFO] [stderr]   --> src/lib/generate.rs:49:45
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let (branch, last_branch, continuation, close_line) = match branch_style {
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_close_line`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tree_gen` (bin "tree_gen" test) generated 2 warnings (run `cargo fix --bin "tree_gen" -p tree_gen --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tree_gen-681bb42ad7e4ef0a)
[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] running `Command { std: "docker" "inspect" "a782d92651aa7d8e9cd8bbae09df96d41fb093fcc78af59bbb0682bff6bbee15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a782d92651aa7d8e9cd8bbae09df96d41fb093fcc78af59bbb0682bff6bbee15", kill_on_drop: false }`
[INFO] [stdout] a782d92651aa7d8e9cd8bbae09df96d41fb093fcc78af59bbb0682bff6bbee15