[INFO] fetching crate object-chain 0.1.3...
[INFO] testing object-chain-0.1.3 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate object-chain 0.1.3 into /workspace/builds/worker-94/source
[INFO] validating manifest of crates.io crate object-chain 0.1.3 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-94/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23e668db40d856e2fe4d2cd2e07f4cb818f5f984b6cf97c89ada053debc07ca5
[INFO] running `Command { std: "docker" "start" "-a" "23e668db40d856e2fe4d2cd2e07f4cb818f5f984b6cf97c89ada053debc07ca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23e668db40d856e2fe4d2cd2e07f4cb818f5f984b6cf97c89ada053debc07ca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23e668db40d856e2fe4d2cd2e07f4cb818f5f984b6cf97c89ada053debc07ca5", kill_on_drop: false }`
[INFO] [stdout] 23e668db40d856e2fe4d2cd2e07f4cb818f5f984b6cf97c89ada053debc07ca5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac78ebf0b928881c271741924c469c858bfe9022d28df47a19487e3502eb7987
[INFO] running `Command { std: "docker" "start" "-a" "ac78ebf0b928881c271741924c469c858bfe9022d28df47a19487e3502eb7987", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling object-chain v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "ac78ebf0b928881c271741924c469c858bfe9022d28df47a19487e3502eb7987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac78ebf0b928881c271741924c469c858bfe9022d28df47a19487e3502eb7987", kill_on_drop: false }`
[INFO] [stdout] ac78ebf0b928881c271741924c469c858bfe9022d28df47a19487e3502eb7987
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 939bce30012c03b0e56810ffb2ecd01487feacfcaad22b1a22a3e3041c102f73
[INFO] running `Command { std: "docker" "start" "-a" "939bce30012c03b0e56810ffb2ecd01487feacfcaad22b1a22a3e3041c102f73", kill_on_drop: false }`
[INFO] [stderr]    Compiling object-chain v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "939bce30012c03b0e56810ffb2ecd01487feacfcaad22b1a22a3e3041c102f73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "939bce30012c03b0e56810ffb2ecd01487feacfcaad22b1a22a3e3041c102f73", kill_on_drop: false }`
[INFO] [stdout] 939bce30012c03b0e56810ffb2ecd01487feacfcaad22b1a22a3e3041c102f73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2a6f3e02fe0204e74abc9ed3f152811e81bca614cbb94190a780a3f20c1e94a3
[INFO] running `Command { std: "docker" "start" "-a" "2a6f3e02fe0204e74abc9ed3f152811e81bca614cbb94190a780a3f20c1e94a3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/object_chain-883d27e6d33a0940)
[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 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests object-chain
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - chain (line 168) ... ok
[INFO] [stdout] test src/lib.rs - chain (line 158) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2a6f3e02fe0204e74abc9ed3f152811e81bca614cbb94190a780a3f20c1e94a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a6f3e02fe0204e74abc9ed3f152811e81bca614cbb94190a780a3f20c1e94a3", kill_on_drop: false }`
[INFO] [stdout] 2a6f3e02fe0204e74abc9ed3f152811e81bca614cbb94190a780a3f20c1e94a3