[INFO] fetching crate rust-quiz 0.0.4...
[INFO] testing rust-quiz-0.0.4 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rust-quiz 0.0.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rust-quiz 0.0.4 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 rust-quiz 0.0.4
[INFO] finished tweaking crates.io crate rust-quiz 0.0.4
[INFO] tweaked toml for crates.io crate rust-quiz 0.0.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate rust-quiz 0.0.4 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-stream v0.1.0
[INFO] [stderr]   Downloaded tokio-util v0.6.0
[INFO] [stderr]   Downloaded bytes v1.0.0
[INFO] [stderr]   Downloaded readonly v0.2.0
[INFO] [stderr]   Downloaded syn v1.0.56
[INFO] [stderr]   Downloaded oqueue v0.1.2
[INFO] [stderr]   Downloaded smallvec v1.6.0
[INFO] [stderr]   Downloaded remain v0.2.2
[INFO] [stderr]   Downloaded hyper-staticfile v0.6.0
[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] 8f7cabd83fdc39fb91456711517c7213f097eb66429aa9cf50a1822830d2818d
[INFO] running `Command { std: "docker" "start" "-a" "8f7cabd83fdc39fb91456711517c7213f097eb66429aa9cf50a1822830d2818d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f7cabd83fdc39fb91456711517c7213f097eb66429aa9cf50a1822830d2818d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f7cabd83fdc39fb91456711517c7213f097eb66429aa9cf50a1822830d2818d", kill_on_drop: false }`
[INFO] [stdout] 8f7cabd83fdc39fb91456711517c7213f097eb66429aa9cf50a1822830d2818d
[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] 3fb042e2d35cc27bf4f2b43fb406f86de62b371880225dfbf8fa05148b0ffce7
[INFO] running `Command { std: "docker" "start" "-a" "3fb042e2d35cc27bf4f2b43fb406f86de62b371880225dfbf8fa05148b0ffce7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling smallvec v1.6.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.0
[INFO] [stderr]    Compiling bytes v1.0.0
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling url v2.2.0
[INFO] [stderr]    Compiling http-body v0.4.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling readonly v0.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling remain v0.2.2
[INFO] [stderr]    Compiling oqueue v0.1.2
[INFO] [stderr]    Compiling async-stream v0.3.0
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling tokio-stream v0.1.0
[INFO] [stderr]    Compiling tokio-util v0.6.0
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling h2 v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling hyper v0.14.2
[INFO] [stderr]    Compiling hyper-staticfile v0.6.0
[INFO] [stderr]    Compiling rust-quiz v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.37s
[INFO] running `Command { std: "docker" "inspect" "3fb042e2d35cc27bf4f2b43fb406f86de62b371880225dfbf8fa05148b0ffce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fb042e2d35cc27bf4f2b43fb406f86de62b371880225dfbf8fa05148b0ffce7", kill_on_drop: false }`
[INFO] [stdout] 3fb042e2d35cc27bf4f2b43fb406f86de62b371880225dfbf8fa05148b0ffce7
[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] 3459225e14fbe631c48e28d335118d6b257536f701cf4c84d4bc4fad26711dd5
[INFO] running `Command { std: "docker" "start" "-a" "3459225e14fbe631c48e28d335118d6b257536f701cf4c84d4bc4fad26711dd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-quiz v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "3459225e14fbe631c48e28d335118d6b257536f701cf4c84d4bc4fad26711dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3459225e14fbe631c48e28d335118d6b257536f701cf4c84d4bc4fad26711dd5", kill_on_drop: false }`
[INFO] [stdout] 3459225e14fbe631c48e28d335118d6b257536f701cf4c84d4bc4fad26711dd5
[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] 547b2f7cacf91dc5c96fdacaaf67f8d26dc6a7daeac1a5f7d7bd9795f2b6b43f
[INFO] running `Command { std: "docker" "start" "-a" "547b2f7cacf91dc5c96fdacaaf67f8d26dc6a7daeac1a5f7d7bd9795f2b6b43f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_quiz-4af347af6b3cfa84)
[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" "547b2f7cacf91dc5c96fdacaaf67f8d26dc6a7daeac1a5f7d7bd9795f2b6b43f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "547b2f7cacf91dc5c96fdacaaf67f8d26dc6a7daeac1a5f7d7bd9795f2b6b43f", kill_on_drop: false }`
[INFO] [stdout] 547b2f7cacf91dc5c96fdacaaf67f8d26dc6a7daeac1a5f7d7bd9795f2b6b43f