[INFO] fetching crate rack-example-parallel 0.0.0...
[INFO] testing rack-example-parallel-0.0.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate rack-example-parallel 0.0.0 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate rack-example-parallel 0.0.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rack-example-parallel 0.0.0
[INFO] finished tweaking crates.io crate rack-example-parallel 0.0.0
[INFO] tweaked toml for crates.io crate rack-example-parallel 0.0.0 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e46ee9799a6d524f227ec6d4e71be98772294b28da1764be931cb50c4a740de8
[INFO] running `Command { std: "docker" "start" "-a" "e46ee9799a6d524f227ec6d4e71be98772294b28da1764be931cb50c4a740de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e46ee9799a6d524f227ec6d4e71be98772294b28da1764be931cb50c4a740de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e46ee9799a6d524f227ec6d4e71be98772294b28da1764be931cb50c4a740de8", kill_on_drop: false }`
[INFO] [stdout] e46ee9799a6d524f227ec6d4e71be98772294b28da1764be931cb50c4a740de8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc0c4ae5e7c78b1ccfc428d4b31f168b00e01f8e08239839d6f80612c4adc1e8
[INFO] running `Command { std: "docker" "start" "-a" "bc0c4ae5e7c78b1ccfc428d4b31f168b00e01f8e08239839d6f80612c4adc1e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rack-example-parallel v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "bc0c4ae5e7c78b1ccfc428d4b31f168b00e01f8e08239839d6f80612c4adc1e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc0c4ae5e7c78b1ccfc428d4b31f168b00e01f8e08239839d6f80612c4adc1e8", kill_on_drop: false }`
[INFO] [stdout] bc0c4ae5e7c78b1ccfc428d4b31f168b00e01f8e08239839d6f80612c4adc1e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c2637ac3a82fcd95af0df6bef04c5d3634c91ff10e84b6c1588524ece6a8547
[INFO] running `Command { std: "docker" "start" "-a" "6c2637ac3a82fcd95af0df6bef04c5d3634c91ff10e84b6c1588524ece6a8547", kill_on_drop: false }`
[INFO] [stderr]    Compiling rack-example-parallel v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "6c2637ac3a82fcd95af0df6bef04c5d3634c91ff10e84b6c1588524ece6a8547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c2637ac3a82fcd95af0df6bef04c5d3634c91ff10e84b6c1588524ece6a8547", kill_on_drop: false }`
[INFO] [stdout] 6c2637ac3a82fcd95af0df6bef04c5d3634c91ff10e84b6c1588524ece6a8547
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2aa759f5357e397f11a355ccf31127ae174aeb72586256a17451fbca1fcb3d3b
[INFO] running `Command { std: "docker" "start" "-a" "2aa759f5357e397f11a355ccf31127ae174aeb72586256a17451fbca1fcb3d3b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rack_example_parallel-d154d1155d8717c1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rack-example-parallel
[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" "2aa759f5357e397f11a355ccf31127ae174aeb72586256a17451fbca1fcb3d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aa759f5357e397f11a355ccf31127ae174aeb72586256a17451fbca1fcb3d3b", kill_on_drop: false }`
[INFO] [stdout] 2aa759f5357e397f11a355ccf31127ae174aeb72586256a17451fbca1fcb3d3b