[INFO] fetching crate vc-holder 0.1.0-alpha...
[INFO] testing vc-holder-0.1.0-alpha against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate vc-holder 0.1.0-alpha into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate vc-holder 0.1.0-alpha
[INFO] finished tweaking crates.io crate vc-holder 0.1.0-alpha
[INFO] tweaked toml for crates.io crate vc-holder 0.1.0-alpha written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vc-holder 0.1.0-alpha 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] crate crates.io crate vc-holder 0.1.0-alpha 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ca38bdf69f1f3da8e47990b7ec844df6c518a0afecf2ca17cf2adf09bf61e852
[INFO] running `Command { std: "docker" "start" "-a" "ca38bdf69f1f3da8e47990b7ec844df6c518a0afecf2ca17cf2adf09bf61e852", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca38bdf69f1f3da8e47990b7ec844df6c518a0afecf2ca17cf2adf09bf61e852", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca38bdf69f1f3da8e47990b7ec844df6c518a0afecf2ca17cf2adf09bf61e852", kill_on_drop: false }`
[INFO] [stdout] ca38bdf69f1f3da8e47990b7ec844df6c518a0afecf2ca17cf2adf09bf61e852
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3493d4c0cb0ba4cbd04ba9a5aae5b213ca506c0482475842e682b1f769fc96ef
[INFO] running `Command { std: "docker" "start" "-a" "3493d4c0cb0ba4cbd04ba9a5aae5b213ca506c0482475842e682b1f769fc96ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling vc-holder v0.1.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "3493d4c0cb0ba4cbd04ba9a5aae5b213ca506c0482475842e682b1f769fc96ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3493d4c0cb0ba4cbd04ba9a5aae5b213ca506c0482475842e682b1f769fc96ef", kill_on_drop: false }`
[INFO] [stdout] 3493d4c0cb0ba4cbd04ba9a5aae5b213ca506c0482475842e682b1f769fc96ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 1fea45811ca66e7fa5ed540d0b6e605f376bf0c3500475351274ed4012184972
[INFO] running `Command { std: "docker" "start" "-a" "1fea45811ca66e7fa5ed540d0b6e605f376bf0c3500475351274ed4012184972", kill_on_drop: false }`
[INFO] [stderr]    Compiling vc-holder v0.1.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "1fea45811ca66e7fa5ed540d0b6e605f376bf0c3500475351274ed4012184972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fea45811ca66e7fa5ed540d0b6e605f376bf0c3500475351274ed4012184972", kill_on_drop: false }`
[INFO] [stdout] 1fea45811ca66e7fa5ed540d0b6e605f376bf0c3500475351274ed4012184972
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] bd3865f62a28d41112b1abef5ef8540e34aa11af2f72709f66fcc16307387896
[INFO] running `Command { std: "docker" "start" "-a" "bd3865f62a28d41112b1abef5ef8540e34aa11af2f72709f66fcc16307387896", 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/vc_holder-a0352d7708e23889)
[INFO] [stderr]    Doc-tests vc_holder
[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] [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" "bd3865f62a28d41112b1abef5ef8540e34aa11af2f72709f66fcc16307387896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd3865f62a28d41112b1abef5ef8540e34aa11af2f72709f66fcc16307387896", kill_on_drop: false }`
[INFO] [stdout] bd3865f62a28d41112b1abef5ef8540e34aa11af2f72709f66fcc16307387896