[INFO] fetching crate vc-holder 0.1.0-alpha...
[INFO] testing vc-holder-0.1.0-alpha against 1.91.0 for beta-1.92-2
[INFO] extracting crate vc-holder 0.1.0-alpha into /workspace/builds/worker-5-tc1/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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vc-holder 0.1.0-alpha on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cd63e1c9bc976f3ddcf1f6556d6bead8e7c1bdf3962c0d7ad0527cc910fb292
[INFO] running `Command { std: "docker" "start" "-a" "0cd63e1c9bc976f3ddcf1f6556d6bead8e7c1bdf3962c0d7ad0527cc910fb292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cd63e1c9bc976f3ddcf1f6556d6bead8e7c1bdf3962c0d7ad0527cc910fb292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cd63e1c9bc976f3ddcf1f6556d6bead8e7c1bdf3962c0d7ad0527cc910fb292", kill_on_drop: false }`
[INFO] [stdout] 0cd63e1c9bc976f3ddcf1f6556d6bead8e7c1bdf3962c0d7ad0527cc910fb292
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5cbaaa0f057544fd7cd0c0475b140c1d6109f289bb291a628fc3be32f98c763b
[INFO] running `Command { std: "docker" "start" "-a" "5cbaaa0f057544fd7cd0c0475b140c1d6109f289bb291a628fc3be32f98c763b", 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 0.12s
[INFO] running `Command { std: "docker" "inspect" "5cbaaa0f057544fd7cd0c0475b140c1d6109f289bb291a628fc3be32f98c763b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cbaaa0f057544fd7cd0c0475b140c1d6109f289bb291a628fc3be32f98c763b", kill_on_drop: false }`
[INFO] [stdout] 5cbaaa0f057544fd7cd0c0475b140c1d6109f289bb291a628fc3be32f98c763b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54f3a2c3bbb6d58a7f14d4a21a00f815cf36e5d889e169ece27052dfa00f8944
[INFO] running `Command { std: "docker" "start" "-a" "54f3a2c3bbb6d58a7f14d4a21a00f815cf36e5d889e169ece27052dfa00f8944", 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 0.25s
[INFO] running `Command { std: "docker" "inspect" "54f3a2c3bbb6d58a7f14d4a21a00f815cf36e5d889e169ece27052dfa00f8944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f3a2c3bbb6d58a7f14d4a21a00f815cf36e5d889e169ece27052dfa00f8944", kill_on_drop: false }`
[INFO] [stdout] 54f3a2c3bbb6d58a7f14d4a21a00f815cf36e5d889e169ece27052dfa00f8944
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aee2abccd230f6911567b1c0e4cb3441ed4e79cbc1434e0d7a7bf7affa3c35b8
[INFO] running `Command { std: "docker" "start" "-a" "aee2abccd230f6911567b1c0e4cb3441ed4e79cbc1434e0d7a7bf7affa3c35b8", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/vc_holder-66031725e95d0af1)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests vc_holder
[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" "aee2abccd230f6911567b1c0e4cb3441ed4e79cbc1434e0d7a7bf7affa3c35b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aee2abccd230f6911567b1c0e4cb3441ed4e79cbc1434e0d7a7bf7affa3c35b8", kill_on_drop: false }`
[INFO] [stdout] aee2abccd230f6911567b1c0e4cb3441ed4e79cbc1434e0d7a7bf7affa3c35b8