[INFO] fetching crate object-chain 0.1.3...
[INFO] testing object-chain-0.1.3 against 1.91.0 for beta-1.92-2
[INFO] extracting crate object-chain 0.1.3 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate object-chain 0.1.3
[INFO] finished tweaking crates.io crate object-chain 0.1.3
[INFO] tweaked toml for crates.io crate object-chain 0.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate object-chain 0.1.3 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] bc5da2277f722f351711fdffd2ba254d3ce04d91743f9b58d61c0a2dfe6633fa
[INFO] running `Command { std: "docker" "start" "-a" "bc5da2277f722f351711fdffd2ba254d3ce04d91743f9b58d61c0a2dfe6633fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc5da2277f722f351711fdffd2ba254d3ce04d91743f9b58d61c0a2dfe6633fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc5da2277f722f351711fdffd2ba254d3ce04d91743f9b58d61c0a2dfe6633fa", kill_on_drop: false }`
[INFO] [stdout] bc5da2277f722f351711fdffd2ba254d3ce04d91743f9b58d61c0a2dfe6633fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 519e6a6328a716a953ee5359d625ac91a71cf78fbd0199691440c0b7e33f65aa
[INFO] running `Command { std: "docker" "start" "-a" "519e6a6328a716a953ee5359d625ac91a71cf78fbd0199691440c0b7e33f65aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling object-chain v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "519e6a6328a716a953ee5359d625ac91a71cf78fbd0199691440c0b7e33f65aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "519e6a6328a716a953ee5359d625ac91a71cf78fbd0199691440c0b7e33f65aa", kill_on_drop: false }`
[INFO] [stdout] 519e6a6328a716a953ee5359d625ac91a71cf78fbd0199691440c0b7e33f65aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 94e26385061488d693e4e6144c46435753c17a30d4f8529fd6e9636dca24aa80
[INFO] running `Command { std: "docker" "start" "-a" "94e26385061488d693e4e6144c46435753c17a30d4f8529fd6e9636dca24aa80", kill_on_drop: false }`
[INFO] [stderr]    Compiling object-chain v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "94e26385061488d693e4e6144c46435753c17a30d4f8529fd6e9636dca24aa80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e26385061488d693e4e6144c46435753c17a30d4f8529fd6e9636dca24aa80", kill_on_drop: false }`
[INFO] [stdout] 94e26385061488d693e4e6144c46435753c17a30d4f8529fd6e9636dca24aa80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2b8b9cb4f2b507cd5391285c6757229cb9fc882d8fbdf766ffe5d85491f07f12
[INFO] running `Command { std: "docker" "start" "-a" "2b8b9cb4f2b507cd5391285c6757229cb9fc882d8fbdf766ffe5d85491f07f12", 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/object_chain-3f5a5a50f6a7af22)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test::test ... ok
[INFO] [stdout] test test::test_accessing_elements_with_common_interface ... ok
[INFO] [stdout] test test::test_count ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests object_chain
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - chain (line 158) ... ok
[INFO] [stdout] test src/lib.rs - chain (line 168) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2b8b9cb4f2b507cd5391285c6757229cb9fc882d8fbdf766ffe5d85491f07f12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b8b9cb4f2b507cd5391285c6757229cb9fc882d8fbdf766ffe5d85491f07f12", kill_on_drop: false }`
[INFO] [stdout] 2b8b9cb4f2b507cd5391285c6757229cb9fc882d8fbdf766ffe5d85491f07f12