[INFO] fetching crate varcon-core 2.1.1...
[INFO] testing varcon-core-2.1.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate varcon-core 2.1.1 into /workspace/builds/worker-45/source
[INFO] validating manifest of crates.io crate varcon-core 2.1.1 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 varcon-core 2.1.1
[INFO] finished tweaking crates.io crate varcon-core 2.1.1
[INFO] tweaked toml for crates.io crate varcon-core 2.1.1 written to /workspace/builds/worker-45/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 enumflags2_derive v0.7.0
[INFO] [stderr]   Downloaded enumflags2 v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 83aeb57994432a42b73c32a073273d6550a2b840243aa9fcd0fd0cad3a5f1cc7
[INFO] running `Command { std: "docker" "start" "-a" "83aeb57994432a42b73c32a073273d6550a2b840243aa9fcd0fd0cad3a5f1cc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83aeb57994432a42b73c32a073273d6550a2b840243aa9fcd0fd0cad3a5f1cc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83aeb57994432a42b73c32a073273d6550a2b840243aa9fcd0fd0cad3a5f1cc7", kill_on_drop: false }`
[INFO] [stdout] 83aeb57994432a42b73c32a073273d6550a2b840243aa9fcd0fd0cad3a5f1cc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 7b902b74a536e60c38693d2e33601157916bd40020aafb848e565cb47a14c6f3
[INFO] running `Command { std: "docker" "start" "-a" "7b902b74a536e60c38693d2e33601157916bd40020aafb848e565cb47a14c6f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling varcon-core v2.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "7b902b74a536e60c38693d2e33601157916bd40020aafb848e565cb47a14c6f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b902b74a536e60c38693d2e33601157916bd40020aafb848e565cb47a14c6f3", kill_on_drop: false }`
[INFO] [stdout] 7b902b74a536e60c38693d2e33601157916bd40020aafb848e565cb47a14c6f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 8a2ca1a54e56ac32efe448988631179cc46e128d04c0c5960f4a09cb0dc5f635
[INFO] running `Command { std: "docker" "start" "-a" "8a2ca1a54e56ac32efe448988631179cc46e128d04c0c5960f4a09cb0dc5f635", kill_on_drop: false }`
[INFO] [stderr]    Compiling varcon-core v2.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "8a2ca1a54e56ac32efe448988631179cc46e128d04c0c5960f4a09cb0dc5f635", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a2ca1a54e56ac32efe448988631179cc46e128d04c0c5960f4a09cb0dc5f635", kill_on_drop: false }`
[INFO] [stdout] 8a2ca1a54e56ac32efe448988631179cc46e128d04c0c5960f4a09cb0dc5f635
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 5326c7fc3a1280dff2f5e2c800a28e3e3d192089e75fe80aa809be423e78a812
[INFO] running `Command { std: "docker" "start" "-a" "5326c7fc3a1280dff2f5e2c800a28e3e3d192089e75fe80aa809be423e78a812", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/varcon_core-ccf5ecbe11f4fdff)
[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 varcon-core
[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" "5326c7fc3a1280dff2f5e2c800a28e3e3d192089e75fe80aa809be423e78a812", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5326c7fc3a1280dff2f5e2c800a28e3e3d192089e75fe80aa809be423e78a812", kill_on_drop: false }`
[INFO] [stdout] 5326c7fc3a1280dff2f5e2c800a28e3e3d192089e75fe80aa809be423e78a812