[INFO] fetching crate dune-block 0.0.0...
[INFO] testing dune-block-0.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate dune-block 0.0.0 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate dune-block 0.0.0 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 dune-block 0.0.0
[INFO] finished tweaking crates.io crate dune-block 0.0.0
[INFO] tweaked toml for crates.io crate dune-block 0.0.0 written to /workspace/builds/worker-52/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] bbe4b15fd0842ef397dd2828f91b833aa518719f52fc95d2927a3ea6417a3fbe
[INFO] running `Command { std: "docker" "start" "-a" "bbe4b15fd0842ef397dd2828f91b833aa518719f52fc95d2927a3ea6417a3fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbe4b15fd0842ef397dd2828f91b833aa518719f52fc95d2927a3ea6417a3fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbe4b15fd0842ef397dd2828f91b833aa518719f52fc95d2927a3ea6417a3fbe", kill_on_drop: false }`
[INFO] [stdout] bbe4b15fd0842ef397dd2828f91b833aa518719f52fc95d2927a3ea6417a3fbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 05397f7a0a0529e0fa00e4f85351eca2b5698ea1ee1727caa48dfe97c3025774
[INFO] running `Command { std: "docker" "start" "-a" "05397f7a0a0529e0fa00e4f85351eca2b5698ea1ee1727caa48dfe97c3025774", 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 dune-block v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "05397f7a0a0529e0fa00e4f85351eca2b5698ea1ee1727caa48dfe97c3025774", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05397f7a0a0529e0fa00e4f85351eca2b5698ea1ee1727caa48dfe97c3025774", kill_on_drop: false }`
[INFO] [stdout] 05397f7a0a0529e0fa00e4f85351eca2b5698ea1ee1727caa48dfe97c3025774
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 5e903e22ad1ffba2bb7ebc72b8a7d4437cb860c10e98ece86c066fbc48d5e678
[INFO] running `Command { std: "docker" "start" "-a" "5e903e22ad1ffba2bb7ebc72b8a7d4437cb860c10e98ece86c066fbc48d5e678", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling dune-block v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.75s
[INFO] running `Command { std: "docker" "inspect" "5e903e22ad1ffba2bb7ebc72b8a7d4437cb860c10e98ece86c066fbc48d5e678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e903e22ad1ffba2bb7ebc72b8a7d4437cb860c10e98ece86c066fbc48d5e678", kill_on_drop: false }`
[INFO] [stdout] 5e903e22ad1ffba2bb7ebc72b8a7d4437cb860c10e98ece86c066fbc48d5e678
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 059b10e5fa8ceb55880a2bead5532bf33d34606750fb06fb1bab4b6cf713b95f
[INFO] running `Command { std: "docker" "start" "-a" "059b10e5fa8ceb55880a2bead5532bf33d34606750fb06fb1bab4b6cf713b95f", 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]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dune_block-4e89cb6b5c49bf65)
[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] [stderr]    Doc-tests dune-block
[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" "059b10e5fa8ceb55880a2bead5532bf33d34606750fb06fb1bab4b6cf713b95f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "059b10e5fa8ceb55880a2bead5532bf33d34606750fb06fb1bab4b6cf713b95f", kill_on_drop: false }`
[INFO] [stdout] 059b10e5fa8ceb55880a2bead5532bf33d34606750fb06fb1bab4b6cf713b95f