[INFO] fetching crate ub 0.1.0...
[INFO] testing ub-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate ub 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ub 0.1.0 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 ub 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ub 0.1.0
[INFO] tweaked toml for crates.io crate ub 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate ub 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] 7a70663a74997cdb56c1f4a79646d174842a78c4717682b19750ce7de3bfa8ba
[INFO] running `Command { std: "docker" "start" "-a" "7a70663a74997cdb56c1f4a79646d174842a78c4717682b19750ce7de3bfa8ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a70663a74997cdb56c1f4a79646d174842a78c4717682b19750ce7de3bfa8ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a70663a74997cdb56c1f4a79646d174842a78c4717682b19750ce7de3bfa8ba", kill_on_drop: false }`
[INFO] [stdout] 7a70663a74997cdb56c1f4a79646d174842a78c4717682b19750ce7de3bfa8ba
[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] ed453a400f96c2920033539455b7bf859feec0ccd613cc547d97c8032f95d269
[INFO] running `Command { std: "docker" "start" "-a" "ed453a400f96c2920033539455b7bf859feec0ccd613cc547d97c8032f95d269", kill_on_drop: false }`
[INFO] [stderr]    Compiling ub v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "ed453a400f96c2920033539455b7bf859feec0ccd613cc547d97c8032f95d269", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed453a400f96c2920033539455b7bf859feec0ccd613cc547d97c8032f95d269", kill_on_drop: false }`
[INFO] [stdout] ed453a400f96c2920033539455b7bf859feec0ccd613cc547d97c8032f95d269
[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] 92efeaef233f8db5eff6b4e094c0a00e6f5a71c6c6170289aee0b313e6db9de5
[INFO] running `Command { std: "docker" "start" "-a" "92efeaef233f8db5eff6b4e094c0a00e6f5a71c6c6170289aee0b313e6db9de5", kill_on_drop: false }`
[INFO] [stderr]    Compiling ub v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "92efeaef233f8db5eff6b4e094c0a00e6f5a71c6c6170289aee0b313e6db9de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92efeaef233f8db5eff6b4e094c0a00e6f5a71c6c6170289aee0b313e6db9de5", kill_on_drop: false }`
[INFO] [stdout] 92efeaef233f8db5eff6b4e094c0a00e6f5a71c6c6170289aee0b313e6db9de5
[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] b1c3d3587360d41316bfc47a8522ccce7a5100587b00bceaba666e3b359b1f4c
[INFO] running `Command { std: "docker" "start" "-a" "b1c3d3587360d41316bfc47a8522ccce7a5100587b00bceaba666e3b359b1f4c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ub-33130af19e2a7599)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ub
[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" "b1c3d3587360d41316bfc47a8522ccce7a5100587b00bceaba666e3b359b1f4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c3d3587360d41316bfc47a8522ccce7a5100587b00bceaba666e3b359b1f4c", kill_on_drop: false }`
[INFO] [stdout] b1c3d3587360d41316bfc47a8522ccce7a5100587b00bceaba666e3b359b1f4c