[INFO] fetching crate delay_writer 0.2.1...
[INFO] testing delay_writer-0.2.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate delay_writer 0.2.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate delay_writer 0.2.1
[INFO] finished tweaking crates.io crate delay_writer 0.2.1
[INFO] tweaked toml for crates.io crate delay_writer 0.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate delay_writer 0.2.1 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] 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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fcae5e519d4cbb6cd975a23c9df3584ac6c3d8421c7a78f16b9a0fec5f934e7
[INFO] running `Command { std: "docker" "start" "-a" "1fcae5e519d4cbb6cd975a23c9df3584ac6c3d8421c7a78f16b9a0fec5f934e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fcae5e519d4cbb6cd975a23c9df3584ac6c3d8421c7a78f16b9a0fec5f934e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fcae5e519d4cbb6cd975a23c9df3584ac6c3d8421c7a78f16b9a0fec5f934e7", kill_on_drop: false }`
[INFO] [stdout] 1fcae5e519d4cbb6cd975a23c9df3584ac6c3d8421c7a78f16b9a0fec5f934e7
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01c4d032714c702f7a5c0162878df261d26f6f64ccd0da27c6ff388ce7670cf4
[INFO] running `Command { std: "docker" "start" "-a" "01c4d032714c702f7a5c0162878df261d26f6f64ccd0da27c6ff388ce7670cf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling delay_writer v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "01c4d032714c702f7a5c0162878df261d26f6f64ccd0da27c6ff388ce7670cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01c4d032714c702f7a5c0162878df261d26f6f64ccd0da27c6ff388ce7670cf4", kill_on_drop: false }`
[INFO] [stdout] 01c4d032714c702f7a5c0162878df261d26f6f64ccd0da27c6ff388ce7670cf4
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a960aea153bcf0deb508cd6a7dd504e69fcb8aee326032f37bf8b93a1e327cd
[INFO] running `Command { std: "docker" "start" "-a" "9a960aea153bcf0deb508cd6a7dd504e69fcb8aee326032f37bf8b93a1e327cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling delay_writer v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "9a960aea153bcf0deb508cd6a7dd504e69fcb8aee326032f37bf8b93a1e327cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a960aea153bcf0deb508cd6a7dd504e69fcb8aee326032f37bf8b93a1e327cd", kill_on_drop: false }`
[INFO] [stdout] 9a960aea153bcf0deb508cd6a7dd504e69fcb8aee326032f37bf8b93a1e327cd
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e4d5bdbbbbaa1d75326fdefb78906733652221b3d8734a0d2ca6d22c97a893f8
[INFO] running `Command { std: "docker" "start" "-a" "e4d5bdbbbbaa1d75326fdefb78906733652221b3d8734a0d2ca6d22c97a893f8", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/delay_writer-f96b1634f957f24d)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::new ... ok
[INFO] [stdout] test tests::write ... ok
[INFO] [stdout] test tests::bytes_written ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests delay_writer
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - DelayWriter (line 16) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e4d5bdbbbbaa1d75326fdefb78906733652221b3d8734a0d2ca6d22c97a893f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4d5bdbbbbaa1d75326fdefb78906733652221b3d8734a0d2ca6d22c97a893f8", kill_on_drop: false }`
[INFO] [stdout] e4d5bdbbbbaa1d75326fdefb78906733652221b3d8734a0d2ca6d22c97a893f8