[INFO] fetching crate nails-fork 0.12.0...
[INFO] testing nails-fork-0.12.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate nails-fork 0.12.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate nails-fork 0.12.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nails-fork 0.12.0
[INFO] finished tweaking crates.io crate nails-fork 0.12.0
[INFO] tweaked toml for crates.io crate nails-fork 0.12.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nails v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3673bbc19ff67db4ff85abe787dfb2642e8b82f93e8db707a57566a1cac1ce09
[INFO] running `Command { std: "docker" "start" "-a" "3673bbc19ff67db4ff85abe787dfb2642e8b82f93e8db707a57566a1cac1ce09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3673bbc19ff67db4ff85abe787dfb2642e8b82f93e8db707a57566a1cac1ce09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3673bbc19ff67db4ff85abe787dfb2642e8b82f93e8db707a57566a1cac1ce09", kill_on_drop: false }`
[INFO] [stdout] 3673bbc19ff67db4ff85abe787dfb2642e8b82f93e8db707a57566a1cac1ce09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bf2b40327a099ba93bfc52831e9b81e782167efd2d910b8d3271a5a6a20d5d9
[INFO] running `Command { std: "docker" "start" "-a" "1bf2b40327a099ba93bfc52831e9b81e782167efd2d910b8d3271a5a6a20d5d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling tokio-util v0.6.8
[INFO] [stderr]    Compiling nails v0.12.0
[INFO] [stderr]    Compiling nails-fork v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.92s
[INFO] running `Command { std: "docker" "inspect" "1bf2b40327a099ba93bfc52831e9b81e782167efd2d910b8d3271a5a6a20d5d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bf2b40327a099ba93bfc52831e9b81e782167efd2d910b8d3271a5a6a20d5d9", kill_on_drop: false }`
[INFO] [stdout] 1bf2b40327a099ba93bfc52831e9b81e782167efd2d910b8d3271a5a6a20d5d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb2241d13e5d28aeaed45a065f39ac2b852e3f10e037804f6cd0a8a25ac7454b
[INFO] running `Command { std: "docker" "start" "-a" "fb2241d13e5d28aeaed45a065f39ac2b852e3f10e037804f6cd0a8a25ac7454b", kill_on_drop: false }`
[INFO] [stderr]    Compiling nails-fork v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "fb2241d13e5d28aeaed45a065f39ac2b852e3f10e037804f6cd0a8a25ac7454b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb2241d13e5d28aeaed45a065f39ac2b852e3f10e037804f6cd0a8a25ac7454b", kill_on_drop: false }`
[INFO] [stdout] fb2241d13e5d28aeaed45a065f39ac2b852e3f10e037804f6cd0a8a25ac7454b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 71899a3549aa3970a1ec08bc83d2f8a3a48ae29f23ff3a6aceb6e62891c6abd1
[INFO] running `Command { std: "docker" "start" "-a" "71899a3549aa3970a1ec08bc83d2f8a3a48ae29f23ff3a6aceb6e62891c6abd1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nails_fork-32e4c972b2513e97)
[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] [stderr]    Doc-tests nails-fork
[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" "71899a3549aa3970a1ec08bc83d2f8a3a48ae29f23ff3a6aceb6e62891c6abd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71899a3549aa3970a1ec08bc83d2f8a3a48ae29f23ff3a6aceb6e62891c6abd1", kill_on_drop: false }`
[INFO] [stdout] 71899a3549aa3970a1ec08bc83d2f8a3a48ae29f23ff3a6aceb6e62891c6abd1