[INFO] fetching crate async-generator 0.0.0...
[INFO] testing async-generator-0.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate async-generator 0.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate async-generator 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 async-generator 0.0.0
[INFO] finished tweaking crates.io crate async-generator 0.0.0
[INFO] tweaked toml for crates.io crate async-generator 0.0.0 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] c44277bb0d972fc8f049e1bfc6f73c29d4516b5f9872ea1fb91c6df13f88ed3d
[INFO] running `Command { std: "docker" "start" "-a" "c44277bb0d972fc8f049e1bfc6f73c29d4516b5f9872ea1fb91c6df13f88ed3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c44277bb0d972fc8f049e1bfc6f73c29d4516b5f9872ea1fb91c6df13f88ed3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c44277bb0d972fc8f049e1bfc6f73c29d4516b5f9872ea1fb91c6df13f88ed3d", kill_on_drop: false }`
[INFO] [stdout] c44277bb0d972fc8f049e1bfc6f73c29d4516b5f9872ea1fb91c6df13f88ed3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e2505b1aafc208f7139de43873f4a9cd960bec831cbe7231d42819879c901e39
[INFO] running `Command { std: "docker" "start" "-a" "e2505b1aafc208f7139de43873f4a9cd960bec831cbe7231d42819879c901e39", kill_on_drop: false }`
[INFO] [stderr]    Compiling async-generator v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "e2505b1aafc208f7139de43873f4a9cd960bec831cbe7231d42819879c901e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2505b1aafc208f7139de43873f4a9cd960bec831cbe7231d42819879c901e39", kill_on_drop: false }`
[INFO] [stdout] e2505b1aafc208f7139de43873f4a9cd960bec831cbe7231d42819879c901e39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 467af354fd944d0f7f83fbf20005f3162e3574628916d8271f114f79eeb8495a
[INFO] running `Command { std: "docker" "start" "-a" "467af354fd944d0f7f83fbf20005f3162e3574628916d8271f114f79eeb8495a", kill_on_drop: false }`
[INFO] [stderr]    Compiling async-generator v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "467af354fd944d0f7f83fbf20005f3162e3574628916d8271f114f79eeb8495a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "467af354fd944d0f7f83fbf20005f3162e3574628916d8271f114f79eeb8495a", kill_on_drop: false }`
[INFO] [stdout] 467af354fd944d0f7f83fbf20005f3162e3574628916d8271f114f79eeb8495a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 6560130047fc052e89d18481437d8186aae4192a960d49372bd47ec4239c8539
[INFO] running `Command { std: "docker" "start" "-a" "6560130047fc052e89d18481437d8186aae4192a960d49372bd47ec4239c8539", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/async_generator-255dfb9ee4db293c)
[INFO] [stderr]    Doc-tests async-generator
[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] [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" "6560130047fc052e89d18481437d8186aae4192a960d49372bd47ec4239c8539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6560130047fc052e89d18481437d8186aae4192a960d49372bd47ec4239c8539", kill_on_drop: false }`
[INFO] [stdout] 6560130047fc052e89d18481437d8186aae4192a960d49372bd47ec4239c8539