[INFO] fetching crate webvtt 0.2.0...
[INFO] testing webvtt-0.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate webvtt 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate webvtt 0.2.0
[INFO] finished tweaking crates.io crate webvtt 0.2.0
[INFO] tweaked toml for crates.io crate webvtt 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate webvtt 0.2.0 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 6 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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] 8719221edb3d91a47dec3edf2e3e0eb93a3fadd06219d313108f0999e2cc19e7
[INFO] running `Command { std: "docker" "start" "-a" "8719221edb3d91a47dec3edf2e3e0eb93a3fadd06219d313108f0999e2cc19e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8719221edb3d91a47dec3edf2e3e0eb93a3fadd06219d313108f0999e2cc19e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8719221edb3d91a47dec3edf2e3e0eb93a3fadd06219d313108f0999e2cc19e7", kill_on_drop: false }`
[INFO] [stdout] 8719221edb3d91a47dec3edf2e3e0eb93a3fadd06219d313108f0999e2cc19e7
[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] a6870b43e43bcdc07e4dccee6a7c1814937c9410c015c77acc9268d5a2dceb21
[INFO] running `Command { std: "docker" "start" "-a" "a6870b43e43bcdc07e4dccee6a7c1814937c9410c015c77acc9268d5a2dceb21", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling webvtt v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `expect_pred` is never used
[INFO] [stdout]    --> src/lib.rs:395:4
[INFO] [stdout]     |
[INFO] [stdout] 395 | fn expect_pred<'a, F: FnMut(char) -> bool>(
[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 5.20s
[INFO] running `Command { std: "docker" "inspect" "a6870b43e43bcdc07e4dccee6a7c1814937c9410c015c77acc9268d5a2dceb21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6870b43e43bcdc07e4dccee6a7c1814937c9410c015c77acc9268d5a2dceb21", kill_on_drop: false }`
[INFO] [stdout] a6870b43e43bcdc07e4dccee6a7c1814937c9410c015c77acc9268d5a2dceb21
[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] f66cb4aeb0f011b89b888dfb31fc2b7269ac4ff23453dcc1faf7694d6cdded6d
[INFO] running `Command { std: "docker" "start" "-a" "f66cb4aeb0f011b89b888dfb31fc2b7269ac4ff23453dcc1faf7694d6cdded6d", kill_on_drop: false }`
[INFO] [stdout] warning: function `expect_pred` is never used
[INFO] [stdout]    --> src/lib.rs:395:4
[INFO] [stdout]     |
[INFO] [stdout] 395 | fn expect_pred<'a, F: FnMut(char) -> bool>(
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling webvtt v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `expect_pred` is never used
[INFO] [stdout]    --> src/lib.rs:395:4
[INFO] [stdout]     |
[INFO] [stdout] 395 | fn expect_pred<'a, F: FnMut(char) -> bool>(
[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 0.63s
[INFO] running `Command { std: "docker" "inspect" "f66cb4aeb0f011b89b888dfb31fc2b7269ac4ff23453dcc1faf7694d6cdded6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f66cb4aeb0f011b89b888dfb31fc2b7269ac4ff23453dcc1faf7694d6cdded6d", kill_on_drop: false }`
[INFO] [stdout] f66cb4aeb0f011b89b888dfb31fc2b7269ac4ff23453dcc1faf7694d6cdded6d
[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] ccc743cf64e2d28429759bebb4a34fa358c4a8cd3a8ec3eed21b6587b107b1cc
[INFO] running `Command { std: "docker" "start" "-a" "ccc743cf64e2d28429759bebb4a34fa358c4a8cd3a8ec3eed21b6587b107b1cc", kill_on_drop: false }`
[INFO] [stderr] warning: function `expect_pred` is never used
[INFO] [stderr]    --> src/lib.rs:395:4
[INFO] [stderr]     |
[INFO] [stderr] 395 | fn expect_pred<'a, F: FnMut(char) -> bool>(
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `webvtt` (lib) generated 1 warning
[INFO] [stderr] warning: `webvtt` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/webvtt-f60a7c57d6723f45)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test::sample1 ... ok
[INFO] [stdout] test test::sample2 ... ok
[INFO] [stdout] test test::timestamp ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests webvtt
[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" "ccc743cf64e2d28429759bebb4a34fa358c4a8cd3a8ec3eed21b6587b107b1cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccc743cf64e2d28429759bebb4a34fa358c4a8cd3a8ec3eed21b6587b107b1cc", kill_on_drop: false }`
[INFO] [stdout] ccc743cf64e2d28429759bebb4a34fa358c4a8cd3a8ec3eed21b6587b107b1cc