[INFO] fetching crate spdl 0.0.1...
[INFO] testing spdl-0.0.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate spdl 0.0.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate spdl 0.0.1
[INFO] finished tweaking crates.io crate spdl 0.0.1
[INFO] tweaked toml for crates.io crate spdl 0.0.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate spdl 0.0.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92c8a4a3f88d5c9b15f4b8b03a856601ed89d19a20fd6dc5c53ff4d68cc8d792
[INFO] running `Command { std: "docker" "start" "-a" "92c8a4a3f88d5c9b15f4b8b03a856601ed89d19a20fd6dc5c53ff4d68cc8d792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92c8a4a3f88d5c9b15f4b8b03a856601ed89d19a20fd6dc5c53ff4d68cc8d792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92c8a4a3f88d5c9b15f4b8b03a856601ed89d19a20fd6dc5c53ff4d68cc8d792", kill_on_drop: false }`
[INFO] [stdout] 92c8a4a3f88d5c9b15f4b8b03a856601ed89d19a20fd6dc5c53ff4d68cc8d792
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7e7445b5ddf74720911549620aa797e138b4a3e53c33c1dd0e8b144c2a50dd6
[INFO] running `Command { std: "docker" "start" "-a" "f7e7445b5ddf74720911549620aa797e138b4a3e53c33c1dd0e8b144c2a50dd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling spdl v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:925:21
[INFO] [stdout]     |
[INFO] [stdout] 925 |                 let mut finding: &mut SyntacticalInstance = finding.unwrap();
[INFO] [stdout]     |                     ----^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Leak` is never used
[INFO] [stdout]    --> src/lib.rs:163:7
[INFO] [stdout]     |
[INFO] [stdout] 163 | trait Leak<T: ?Sized> {
[INFO] [stdout]     |       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.47s
[INFO] running `Command { std: "docker" "inspect" "f7e7445b5ddf74720911549620aa797e138b4a3e53c33c1dd0e8b144c2a50dd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7e7445b5ddf74720911549620aa797e138b4a3e53c33c1dd0e8b144c2a50dd6", kill_on_drop: false }`
[INFO] [stdout] f7e7445b5ddf74720911549620aa797e138b4a3e53c33c1dd0e8b144c2a50dd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be9faeb95880f660bf1407bba1c008d9c6b428ae2edd290d7d9b55093184d493
[INFO] running `Command { std: "docker" "start" "-a" "be9faeb95880f660bf1407bba1c008d9c6b428ae2edd290d7d9b55093184d493", kill_on_drop: false }`
[INFO] [stderr]    Compiling spdl v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:925:21
[INFO] [stdout]     |
[INFO] [stdout] 925 |                 let mut finding: &mut SyntacticalInstance = finding.unwrap();
[INFO] [stdout]     |                     ----^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Leak` is never used
[INFO] [stdout]    --> src/lib.rs:163:7
[INFO] [stdout]     |
[INFO] [stdout] 163 | trait Leak<T: ?Sized> {
[INFO] [stdout]     |       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:925:21
[INFO] [stdout]     |
[INFO] [stdout] 925 |                 let mut finding: &mut SyntacticalInstance = finding.unwrap();
[INFO] [stdout]     |                     ----^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Leak` is never used
[INFO] [stdout]    --> src/lib.rs:163:7
[INFO] [stdout]     |
[INFO] [stdout] 163 | trait Leak<T: ?Sized> {
[INFO] [stdout]     |       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "be9faeb95880f660bf1407bba1c008d9c6b428ae2edd290d7d9b55093184d493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be9faeb95880f660bf1407bba1c008d9c6b428ae2edd290d7d9b55093184d493", kill_on_drop: false }`
[INFO] [stdout] be9faeb95880f660bf1407bba1c008d9c6b428ae2edd290d7d9b55093184d493
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0af8f23b2a45475e0ae692e6a5ad811ee0d51f3bfbde68c87f875d538a8b9a8e
[INFO] running `Command { std: "docker" "start" "-a" "0af8f23b2a45475e0ae692e6a5ad811ee0d51f3bfbde68c87f875d538a8b9a8e", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:925:21
[INFO] [stderr]     |
[INFO] [stderr] 925 |                 let mut finding: &mut SyntacticalInstance = finding.unwrap();
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Leak` is never used
[INFO] [stderr]    --> src/lib.rs:163:7
[INFO] [stderr]     |
[INFO] [stderr] 163 | trait Leak<T: ?Sized> {
[INFO] [stderr]     |       ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `spdl` (lib) generated 2 warnings (run `cargo fix --lib -p spdl` to apply 1 suggestion)
[INFO] [stderr] warning: `spdl` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/spdl-536bdb9d4d0fc8eb)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::printing_language ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 6.87s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests spdl
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 54) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 6.51s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0af8f23b2a45475e0ae692e6a5ad811ee0d51f3bfbde68c87f875d538a8b9a8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0af8f23b2a45475e0ae692e6a5ad811ee0d51f3bfbde68c87f875d538a8b9a8e", kill_on_drop: false }`
[INFO] [stdout] 0af8f23b2a45475e0ae692e6a5ad811ee0d51f3bfbde68c87f875d538a8b9a8e